gdb/gdbarch.h

   1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
   2
   3 /* Dynamic architecture support for GDB, the GNU debugger.
   4
   5    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   6    2007, 2008, 2009 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 "half", "float", "double", and
 122    "long double".  These bit/format pairs should eventually be combined
 123    into 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_half_bit (struct gdbarch *gdbarch);
 128 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
 129
 130 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
 131 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
 132
 133 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 134 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 135
 136 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 137 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 138
 139 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 140 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 141
 142 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 143 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 144
 145 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 146 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 147
 148 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 149 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 150
 151 /* For most targets, a pointer on the target and its representation as an
 152    address in GDB have the same size and "look the same".  For such a
 153    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 154    / addr_bit will be set from it.
 155
 156    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 157    also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
 158    as well.
 159
 160    ptr_bit is the size of a pointer on the target */
 161
 162 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 163 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 164
 165 /* addr_bit is the size of a target address as represented in gdb */
 166
 167 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 168 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 169
 170 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 171
 172 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 173 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 174
 175 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 176
 177 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 178 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 179 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 180
 181 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 182
 183 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 184 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 185 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 186
 187 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 188    whole scheme for dealing with "frames" and "frame pointers" needs a
 189    serious shakedown. */
 190
 191 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 192 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 193 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 194
 195 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 196
 197 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 198 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 199 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 200
 201 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 202
 203 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 204 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 205 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 206
 207 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 208 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 209
 210 /* This macro gives the number of pseudo-registers that live in the
 211    register namespace but do not get fetched or stored on the target.
 212    These pseudo-registers may be aliases for other registers,
 213    combinations of other registers, or they may be computed by GDB. */
 214
 215 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 216 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 217
 218 /* GDB's standard (or well known) register numbers.  These can map onto
 219    a real register or a pseudo (computed) register or not be defined at
 220    all (-1).
 221    gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
 222
 223 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 224 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 225
 226 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 227 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 228
 229 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 230 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 231
 232 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 233 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 234
 235 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 236
 237 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
 238 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 239 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 240
 241 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 242
 243 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
 244 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 245 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 246
 247 /* Convert from an sdb register number to an internal gdb register number. */
 248
 249 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
 250 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 251 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 252
 253 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
 254
 255 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
 256 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 257 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 258
 259 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
 260 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 261 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 262
 263 /* Return the type of a register specified by the architecture.  Only
 264    the register cache should call this function directly; others should
 265    use "register_type". */
 266
 267 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 268
 269 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 270 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 271 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 272
 273 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 274
 275 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
 276
 277 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
 278 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
 279 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
 280
 281 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
 282    deprecated_fp_regnum. */
 283
 284 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 285 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 286
 287 /* See gdbint.texinfo.  See infcall.c. */
 288
 289 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 290
 291 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);
 292 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);
 293 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 294
 295 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 296 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 297
 298 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 299
 300 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);
 301 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);
 302 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 303
 304 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 305 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 306 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 307
 308 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 309
 310 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 311 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 312 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 313
 314 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 315
 316 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 317 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 318 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 319
 320 /* MAP a GDB RAW register number onto a simulator register number.  See
 321    also include/...-sim.h. */
 322
 323 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
 324 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 325 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 326
 327 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
 328 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 329 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 330
 331 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
 332 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 333 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 334
 335 /* setjmp/longjmp support. */
 336
 337 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 338
 339 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 340 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 341 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 342
 343 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 344 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 345
 346 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
 347 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 348 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 349
 350 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 351 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 352 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 353
 354 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 355 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 356 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 357
 358 /* Construct a value representing the contents of register REGNUM in
 359    frame FRAME, interpreted as type TYPE.  The routine needs to
 360    allocate and return a struct value with all value attributes
 361    (but not the value contents) filled in. */
 362
 363 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 364 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 365 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 366
 367 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 368 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 369 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 370
 371 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 372 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 373 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 374
 375 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 376
 377 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 378 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 379 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 380
 381 /* Return the return-value convention that will be used by FUNCTYPE
 382    to return a value of type VALTYPE.  FUNCTYPE may be NULL in which
 383    case the return convention is computed based only on VALTYPE.
 384
 385    If READBUF is not NULL, extract the return value and save it in this buffer.
 386
 387    If WRITEBUF is not NULL, it contains a return value which will be
 388    stored into the appropriate register.  This can be used when we want
 389    to force the value returned by a function (see the "return" command
 390    for instance). */
 391
 392 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 393
 394 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);
 395 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);
 396 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 397
 398 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 399 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 400 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 401
 402 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
 403
 404 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 405 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 406 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
 407
 408 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 409 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 410 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 411
 412 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 413 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 414 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 415
 416 /* Return the adjusted address and kind to use for Z0/Z1 packets.
 417    KIND is usually the memory length of the breakpoint, but may have a
 418    different target-specific meaning. */
 419
 420 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 421 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 422 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
 423
 424 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 425
 426 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 427 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 428 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 429
 430 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 431 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 432 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 433
 434 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 435 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 436 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 437
 438 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 439 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 440
 441 /* A function can be addressed by either it's "pointer" (possibly a
 442    descriptor address) or "entry point" (first executable instruction).
 443    The method "convert_from_func_ptr_addr" converting the former to the
 444    latter.  gdbarch_deprecated_function_start_offset is being used to implement
 445    a simplified subset of that functionality - the function's address
 446    corresponds to the "function pointer" and the function's start
 447    corresponds to the "function entry point" - and hence is redundant. */
 448
 449 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 450 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 451
 452 /* Return the remote protocol register number associated with this
 453    register.  Normally the identity mapping. */
 454
 455 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 456 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 457 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 458
 459 /* Fetch the target specific address used to represent a load module. */
 460
 461 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 462
 463 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 464 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 465 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 466
 467 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 468 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 469
 470 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 471
 472 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 473 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 474 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 475
 476 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 477
 478 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 479 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 480 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 481
 482 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 483    frame-base.  Enable frame-base before frame-unwind. */
 484
 485 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 486
 487 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 488 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 489 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 490
 491 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 492
 493 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 494 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 495 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 496
 497 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 498 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 499 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 500
 501 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 502 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 503
 504 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 505 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 506 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 507
 508 /* On some machines there are bits in addresses which are not really
 509    part of the address, but are used by the kernel, the hardware, etc.
 510    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 511    we get a "real" address such as one would find in a symbol table.
 512    This is used only for addresses of instructions, and even then I'm
 513    not sure it's used in all contexts.  It exists to deal with there
 514    being a few stray bits in the PC which would mislead us, not as some
 515    sort of generic thing to handle alignment or segmentation (it's
 516    possible it should be in TARGET_READ_PC instead). */
 517
 518 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 519 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 520 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 521
 522 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 523    gdbarch_addr_bits_remove. */
 524
 525 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 526 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 527 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 528
 529 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 530    indicates if the target needs software single step.  An ISA method to
 531    implement it.
 532
 533    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 534    breakpoints using the breakpoint system instead of blatting memory directly
 535    (as with rs6000).
 536
 537    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 538    target can single step.  If not, then implement single step using breakpoints.
 539
 540    A return value of 1 means that the software_single_step breakpoints
 541    were inserted; 0 means they were not. */
 542
 543 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 544
 545 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 546 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 547 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 548
 549 /* Return non-zero if the processor is executing a delay slot and a
 550    further single-step is needed before the instruction finishes. */
 551
 552 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 553
 554 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 555 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 556 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 557
 558 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 559    disassembler.  Perhaps objdump can handle it? */
 560
 561 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 562 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 563 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 564
 565 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 566 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 567 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 568
 569 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
 570    evaluates non-zero, this is the address where the debugger will place
 571    a step-resume breakpoint to get us past the dynamic linker. */
 572
 573 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 574 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 575 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 576
 577 /* Some systems also have trampoline code for returning from shared libs. */
 578
 579 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 580 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 581 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 582
 583 /* A target might have problems with watchpoints as soon as the stack
 584    frame of the current function has been destroyed.  This mostly happens
 585    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 586    is defined to return a non-zero value if either the given addr is one
 587    instruction after the stack destroying instruction up to the trailing
 588    return instruction or if we can figure out that the stack frame has
 589    already been invalidated regardless of the value of addr.  Targets
 590    which don't suffer from that problem could just let this functionality
 591    untouched. */
 592
 593 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 594 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 595 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 596
 597 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 598 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 599 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 600
 601 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 602 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 603 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 604
 605 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 606 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 607
 608 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 609 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 610
 611 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 612
 613 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 614 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 615 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 616
 617 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 618
 619 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 620 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 621 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);
 622
 623 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 624
 625 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 626 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 627 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);
 628
 629 /* Is a register in a group */
 630
 631 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 632 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 633 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 634
 635 /* Fetch the pointer to the ith function argument. */
 636
 637 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 638
 639 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 640 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 641 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 642
 643 /* Return the appropriate register set for a core file section with
 644    name SECT_NAME and size SECT_SIZE. */
 645
 646 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 647
 648 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 649 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 650 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 651
 652 /* When creating core dumps, some systems encode the PID in addition
 653    to the LWP id in core file register section names.  In those cases, the
 654    "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID].  This setting
 655    is set to true for such architectures; false if "XXX" represents an LWP
 656    or thread id with no special encoding. */
 657
 658 extern int gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch);
 659 extern void set_gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch, int core_reg_section_encodes_pid);
 660
 661 /* Supported register notes in a core file. */
 662
 663 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
 664 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
 665
 666 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
 667    core file into buffer READBUF with length LEN. */
 668
 669 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
 670
 671 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 672 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 673 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
 674
 675 /* How the core target converts a PTID from a core file to a string. */
 676
 677 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
 678
 679 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 680 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
 681 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
 682
 683 /* BFD target to use when generating a core file. */
 684
 685 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
 686
 687 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
 688 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
 689
 690 /* If the elements of C++ vtables are in-place function descriptors rather
 691    than normal function pointers (which may point to code or a descriptor),
 692    set this to one. */
 693
 694 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 695 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 696
 697 /* Set if the least significant bit of the delta is used instead of the least
 698    significant bit of the pfn for pointers to virtual member functions. */
 699
 700 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 701 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 702
 703 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 704
 705 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 706
 707 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 708 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 709 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 710
 711 /* The maximum length of an instruction on this architecture. */
 712
 713 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
 714
 715 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
 716 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
 717
 718 /* Copy the instruction at FROM to TO, and make any adjustments
 719    necessary to single-step it at that address.
 720
 721    REGS holds the state the thread's registers will have before
 722    executing the copied instruction; the PC in REGS will refer to FROM,
 723    not the copy at TO.  The caller should update it to point at TO later.
 724
 725    Return a pointer to data of the architecture's choice to be passed
 726    to gdbarch_displaced_step_fixup.  Or, return NULL to indicate that
 727    the instruction's effects have been completely simulated, with the
 728    resulting state written back to REGS.
 729
 730    For a general explanation of displaced stepping and how GDB uses it,
 731    see the comments in infrun.c.
 732
 733    The TO area is only guaranteed to have space for
 734    gdbarch_max_insn_length (arch) bytes, so this function must not
 735    write more bytes than that to that area.
 736
 737    If you do not provide this function, GDB assumes that the
 738    architecture does not support displaced stepping.
 739
 740    If your architecture doesn't need to adjust instructions before
 741    single-stepping them, consider using simple_displaced_step_copy_insn
 742    here. */
 743
 744 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
 745
 746 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 747 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 748 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
 749
 750 /* Return true if GDB should use hardware single-stepping to execute
 751    the displaced instruction identified by CLOSURE.  If false,
 752    GDB will simply restart execution at the displaced instruction
 753    location, and it is up to the target to ensure GDB will receive
 754    control again (e.g. by placing a software breakpoint instruction
 755    into the displaced instruction buffer).
 756
 757    The default implementation returns false on all targets that
 758    provide a gdbarch_software_single_step routine, and true otherwise. */
 759
 760 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 761 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 762 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
 763
 764 /* Fix up the state resulting from successfully single-stepping a
 765    displaced instruction, to give the result we would have gotten from
 766    stepping the instruction in its original location.
 767
 768    REGS is the register state resulting from single-stepping the
 769    displaced instruction.
 770
 771    CLOSURE is the result from the matching call to
 772    gdbarch_displaced_step_copy_insn.
 773
 774    If you provide gdbarch_displaced_step_copy_insn.but not this
 775    function, then GDB assumes that no fixup is needed after
 776    single-stepping the instruction.
 777
 778    For a general explanation of displaced stepping and how GDB uses it,
 779    see the comments in infrun.c. */
 780
 781 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
 782
 783 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 784 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 785 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
 786
 787 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
 788
 789    If you provide gdbarch_displaced_step_copy_insn, you must provide
 790    this function as well.
 791
 792    If your architecture uses closures that don't need to be freed, then
 793    you can use simple_displaced_step_free_closure here.
 794
 795    For a general explanation of displaced stepping and how GDB uses it,
 796    see the comments in infrun.c. */
 797
 798 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 799 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 800 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
 801
 802 /* Return the address of an appropriate place to put displaced
 803    instructions while we step over them.  There need only be one such
 804    place, since we're only stepping one thread over a breakpoint at a
 805    time.
 806
 807    For a general explanation of displaced stepping and how GDB uses it,
 808    see the comments in infrun.c. */
 809
 810 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
 811 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
 812 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
 813
 814 /* Relocate an instruction to execute at a different address.  OLDLOC
 815    is the address in the inferior memory where the instruction to
 816    relocate is currently at.  On input, TO points to the destination
 817    where we want the instruction to be copied (and possibly adjusted)
 818    to.  On output, it points to one past the end of the resulting
 819    instruction(s).  The effect of executing the instruction at TO shall
 820    be the same as if executing it at FROM.  For example, call
 821    instructions that implicitly push the return address on the stack
 822    should be adjusted to return to the instruction after OLDLOC;
 823    relative branches, and other PC-relative instructions need the
 824    offset adjusted; etc. */
 825
 826 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
 827
 828 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 829 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 830 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
 831
 832 /* Refresh overlay mapped state for section OSECT. */
 833
 834 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 835
 836 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 837 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 838 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 839
 840 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
 841
 842 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 843 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 844 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
 845
 846 /* Handle special encoding of static variables in stabs debug info. */
 847
 848 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
 849
 850 typedef char * (gdbarch_static_transform_name_ftype) (char *name);
 851 extern char * gdbarch_static_transform_name (struct gdbarch *gdbarch, char *name);
 852 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
 853
 854 /* Set if the address in N_SO or N_FUN stabs may be zero. */
 855
 856 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
 857 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
 858
 859 /* Parse the instruction at ADDR storing in the record execution log
 860    the registers REGCACHE and memory ranges that will be affected when
 861    the instruction executes, along with their current values.
 862    Return -1 if something goes wrong, 0 otherwise. */
 863
 864 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
 865
 866 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 867 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 868 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
 869
 870 /* Save process state after a signal.
 871    Return -1 if something goes wrong, 0 otherwise. */
 872
 873 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
 874
 875 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 876 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 877 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
 878
 879 /* Signal translation: translate inferior's signal (host's) number into
 880    GDB's representation. */
 881
 882 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo);
 883 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo);
 884 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host);
 885
 886 /* Signal translation: translate GDB's signal number into inferior's host
 887    signal number. */
 888
 889 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts);
 890 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
 891 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
 892
 893 /* Extra signal info inspection.
 894
 895    Return a type suitable to inspect extra signal information. */
 896
 897 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
 898
 899 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
 900 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
 901 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
 902
 903 /* Record architecture-specific information from the symbol table. */
 904
 905 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
 906
 907 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 908 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 909 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
 910
 911 /* Function for the 'catch syscall' feature.
 912    Get architecture-specific system calls information from registers. */
 913
 914 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
 915
 916 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 917 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
 918 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
 919
 920 /* True if the list of shared libraries is one and only for all
 921    processes, as opposed to a list of shared libraries per inferior.
 922    This usually means that all processes, although may or may not share
 923    an address space, will see the same set of symbols at the same
 924    addresses. */
 925
 926 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
 927 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
 928
 929 /* On some targets, even though each inferior has its own private
 930    address space, the debug interface takes care of making breakpoints
 931    visible to all address spaces automatically.  For such cases,
 932    this property should be set to true. */
 933
 934 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
 935 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
 936
 937 /* True if inferiors share an address space (e.g., uClinux). */
 938
 939 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
 940 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
 941 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
 942
 943 /* True if a fast tracepoint can be set at an address. */
 944
 945 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
 946 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
 947 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
 948
 949 /* Return the "auto" target charset. */
 950
 951 typedef const char * (gdbarch_auto_charset_ftype) (void);
 952 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
 953 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
 954
 955 /* Return the "auto" target wide charset. */
 956
 957 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
 958 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
 959 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
 960
 961 /* If non-empty, this is a file extension that will be opened in place
 962    of the file extension reported by the shared library list.
 963
 964    This is most useful for toolchains that use a post-linker tool,
 965    where the names of the files run on the target differ in extension
 966    compared to the names of the files GDB should load for debug info. */
 967
 968 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
 969 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
 970
 971 /* If true, the target OS has DOS-based file system semantics.  That
 972    is, absolute paths include a drive name, and the backslash is
 973    considered a directory separator. */
 974
 975 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
 976 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
 977
 978 /* Definition for an unknown syscall, used basically in error-cases.  */
 979 #define UNKNOWN_SYSCALL (-1)
 980
 981 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 982
 983
 984 /* Mechanism for co-ordinating the selection of a specific
 985    architecture.
 986
 987    GDB targets (*-tdep.c) can register an interest in a specific
 988    architecture.  Other GDB components can register a need to maintain
 989    per-architecture data.
 990
 991    The mechanisms below ensures that there is only a loose connection
 992    between the set-architecture command and the various GDB
 993    components.  Each component can independently register their need
 994    to maintain architecture specific data with gdbarch.
 995
 996    Pragmatics:
 997
 998    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 999    didn't scale.
1000
1001    The more traditional mega-struct containing architecture specific
1002    data for all the various GDB components was also considered.  Since
1003    GDB is built from a variable number of (fairly independent)
1004    components it was determined that the global aproach was not
1005    applicable. */
1006
1007
1008 /* Register a new architectural family with GDB.
1009
1010    Register support for the specified ARCHITECTURE with GDB.  When
1011    gdbarch determines that the specified architecture has been
1012    selected, the corresponding INIT function is called.
1013
1014    --
1015
1016    The INIT function takes two parameters: INFO which contains the
1017    information available to gdbarch about the (possibly new)
1018    architecture; ARCHES which is a list of the previously created
1019    ``struct gdbarch'' for this architecture.
1020
1021    The INFO parameter is, as far as possible, be pre-initialized with
1022    information obtained from INFO.ABFD or the global defaults.
1023
1024    The ARCHES parameter is a linked list (sorted most recently used)
1025    of all the previously created architures for this architecture
1026    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1027    values from the previously selected architecture for this
1028    architecture family.
1029
1030    The INIT function shall return any of: NULL - indicating that it
1031    doesn't recognize the selected architecture; an existing ``struct
1032    gdbarch'' from the ARCHES list - indicating that the new
1033    architecture is just a synonym for an earlier architecture (see
1034    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1035    - that describes the selected architecture (see gdbarch_alloc()).
1036
1037    The DUMP_TDEP function shall print out all target specific values.
1038    Care should be taken to ensure that the function works in both the
1039    multi-arch and non- multi-arch cases. */
1040
1041 struct gdbarch_list
1042 {
1043   struct gdbarch *gdbarch;
1044   struct gdbarch_list *next;
1045 };
1046
1047 struct gdbarch_info
1048 {
1049   /* Use default: NULL (ZERO). */
1050   const struct bfd_arch_info *bfd_arch_info;
1051
1052   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1053   int byte_order;
1054
1055   int byte_order_for_code;
1056
1057   /* Use default: NULL (ZERO). */
1058   bfd *abfd;
1059
1060   /* Use default: NULL (ZERO). */
1061   struct gdbarch_tdep_info *tdep_info;
1062
1063   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1064   enum gdb_osabi osabi;
1065
1066   /* Use default: NULL (ZERO).  */
1067   const struct target_desc *target_desc;
1068 };
1069
1070 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1071 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1072
1073 /* DEPRECATED - use gdbarch_register() */
1074 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1075
1076 extern void gdbarch_register (enum bfd_architecture architecture,
1077                               gdbarch_init_ftype *,
1078                               gdbarch_dump_tdep_ftype *);
1079
1080
1081 /* Return a freshly allocated, NULL terminated, array of the valid
1082    architecture names.  Since architectures are registered during the
1083    _initialize phase this function only returns useful information
1084    once initialization has been completed. */
1085
1086 extern const char **gdbarch_printable_names (void);
1087
1088
1089 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1090    matches the information provided by INFO. */
1091
1092 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1093
1094
1095 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1096    basic initialization using values obtained from the INFO and TDEP
1097    parameters.  set_gdbarch_*() functions are called to complete the
1098    initialization of the object. */
1099
1100 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1101
1102
1103 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1104    It is assumed that the caller freeds the ``struct
1105    gdbarch_tdep''. */
1106
1107 extern void gdbarch_free (struct gdbarch *);
1108
1109
1110 /* Helper function.  Allocate memory from the ``struct gdbarch''
1111    obstack.  The memory is freed when the corresponding architecture
1112    is also freed.  */
1113
1114 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1115 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1116 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1117
1118
1119 /* Helper function. Force an update of the current architecture.
1120
1121    The actual architecture selected is determined by INFO, ``(gdb) set
1122    architecture'' et.al., the existing architecture and BFD's default
1123    architecture.  INFO should be initialized to zero and then selected
1124    fields should be updated.
1125
1126    Returns non-zero if the update succeeds */
1127
1128 extern int gdbarch_update_p (struct gdbarch_info info);
1129
1130
1131 /* Helper function.  Find an architecture matching info.
1132
1133    INFO should be initialized using gdbarch_info_init, relevant fields
1134    set, and then finished using gdbarch_info_fill.
1135
1136    Returns the corresponding architecture, or NULL if no matching
1137    architecture was found.  */
1138
1139 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1140
1141
1142 /* Helper function.  Set the global "target_gdbarch" to "gdbarch".
1143
1144    FIXME: kettenis/20031124: Of the functions that follow, only
1145    gdbarch_from_bfd is supposed to survive.  The others will
1146    dissappear since in the future GDB will (hopefully) be truly
1147    multi-arch.  However, for now we're still stuck with the concept of
1148    a single active architecture.  */
1149
1150 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1151
1152
1153 /* Register per-architecture data-pointer.
1154
1155    Reserve space for a per-architecture data-pointer.  An identifier
1156    for the reserved data-pointer is returned.  That identifer should
1157    be saved in a local static variable.
1158
1159    Memory for the per-architecture data shall be allocated using
1160    gdbarch_obstack_zalloc.  That memory will be deleted when the
1161    corresponding architecture object is deleted.
1162
1163    When a previously created architecture is re-selected, the
1164    per-architecture data-pointer for that previous architecture is
1165    restored.  INIT() is not re-called.
1166
1167    Multiple registrarants for any architecture are allowed (and
1168    strongly encouraged).  */
1169
1170 struct gdbarch_data;
1171
1172 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1173 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1174 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1175 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1176 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1177                                          struct gdbarch_data *data,
1178                                          void *pointer);
1179
1180 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1181
1182
1183 /* Set the dynamic target-system-dependent parameters (architecture,
1184    byte-order, ...) using information found in the BFD */
1185
1186 extern void set_gdbarch_from_file (bfd *);
1187
1188
1189 /* Initialize the current architecture to the "first" one we find on
1190    our list.  */
1191
1192 extern void initialize_current_architecture (void);
1193
1194 /* gdbarch trace variable */
1195 extern int gdbarch_debug;
1196
1197 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1198
1199 #endif