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 struct agent_expr;
  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 "half", "float", "double", and
 123    "long double".  These bit/format pairs should eventually be combined
 124    into 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_half_bit (struct gdbarch *gdbarch);
 129 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
 130
 131 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
 132 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
 133
 134 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 135 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 136
 137 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 138 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 139
 140 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 141 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 142
 143 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 144 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 145
 146 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 147 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 148
 149 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 150 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 151
 152 /* For most targets, a pointer on the target and its representation as an
 153    address in GDB have the same size and "look the same".  For such a
 154    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 155    / addr_bit will be set from it.
 156
 157    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 158    also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
 159    gdbarch_address_to_pointer as well.
 160
 161    ptr_bit is the size of a pointer on the target */
 162
 163 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 164 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 165
 166 /* addr_bit is the size of a target address as represented in gdb */
 167
 168 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 169 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 170
 171 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
 172    info.  For .debug_frame FDEs, this is supposed to be the target address
 173    size from the associated CU header, and which is equivalent to the
 174    DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
 175    Unfortunately there is no good way to determine this value.  Therefore
 176    dwarf2_addr_size simply defaults to the target pointer size.
 177
 178    dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
 179    defined using the target's pointer size so far.
 180
 181    Note that dwarf2_addr_size only needs to be redefined by a target if the
 182    GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
 183    and if Dwarf versions < 4 need to be supported. */
 184
 185 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
 186 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
 187
 188 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 189
 190 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 191 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 192
 193 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 194
 195 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 196 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 197 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 198
 199 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 200
 201 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 202 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 203 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 204
 205 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 206    whole scheme for dealing with "frames" and "frame pointers" needs a
 207    serious shakedown. */
 208
 209 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 210 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 211 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 212
 213 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 214
 215 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 216 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 217 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 218
 219 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 220
 221 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 222 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 223 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 224
 225 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 226 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 227
 228 /* This macro gives the number of pseudo-registers that live in the
 229    register namespace but do not get fetched or stored on the target.
 230    These pseudo-registers may be aliases for other registers,
 231    combinations of other registers, or they may be computed by GDB. */
 232
 233 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 234 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 235
 236 /* Assemble agent expression bytecode to collect pseudo-register REG.
 237    Return -1 if something goes wrong, 0 otherwise. */
 238
 239 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
 240
 241 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 242 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 243 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
 244
 245 /* Assemble agent expression bytecode to push the value of pseudo-register
 246    REG on the interpreter stack.
 247    Return -1 if something goes wrong, 0 otherwise. */
 248
 249 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
 250
 251 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 252 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 253 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
 254
 255 /* GDB's standard (or well known) register numbers.  These can map onto
 256    a real register or a pseudo (computed) register or not be defined at
 257    all (-1).
 258    gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
 259
 260 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 261 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 262
 263 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 264 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 265
 266 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 267 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 268
 269 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 270 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 271
 272 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 273
 274 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
 275 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 276 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 277
 278 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 279
 280 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
 281 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 282 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 283
 284 /* Convert from an sdb register number to an internal gdb register number. */
 285
 286 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
 287 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 288 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 289
 290 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
 291
 292 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
 293 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 294 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 295
 296 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
 297 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 298 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 299
 300 /* Return the type of a register specified by the architecture.  Only
 301    the register cache should call this function directly; others should
 302    use "register_type". */
 303
 304 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 305
 306 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 307 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 308 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 309
 310 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 311
 312 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
 313
 314 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
 315 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
 316 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
 317
 318 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
 319    deprecated_fp_regnum. */
 320
 321 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 322 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 323
 324 /* See gdbint.texinfo.  See infcall.c. */
 325
 326 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 327
 328 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);
 329 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);
 330 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 331
 332 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 333 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 334
 335 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 336
 337 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);
 338 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);
 339 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 340
 341 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 342 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 343 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 344
 345 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 346
 347 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 348 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 349 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 350
 351 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 352
 353 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 354 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 355 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 356
 357 /* MAP a GDB RAW register number onto a simulator register number.  See
 358    also include/...-sim.h. */
 359
 360 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
 361 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 362 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 363
 364 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
 365 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 366 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 367
 368 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
 369 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 370 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 371
 372 /* setjmp/longjmp support. */
 373
 374 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 375
 376 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 377 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 378 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 379
 380 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 381 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 382
 383 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
 384 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 385 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 386
 387 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 388 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 389 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 390
 391 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 392 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 393 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 394
 395 /* Construct a value representing the contents of register REGNUM in
 396    frame FRAME, interpreted as type TYPE.  The routine needs to
 397    allocate and return a struct value with all value attributes
 398    (but not the value contents) filled in. */
 399
 400 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 401 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 402 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 403
 404 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 405 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 406 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 407
 408 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 409 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 410 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 411
 412 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 413
 414 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 415 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 416 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 417
 418 /* Return the return-value convention that will be used by FUNCTYPE
 419    to return a value of type VALTYPE.  FUNCTYPE may be NULL in which
 420    case the return convention is computed based only on VALTYPE.
 421
 422    If READBUF is not NULL, extract the return value and save it in this buffer.
 423
 424    If WRITEBUF is not NULL, it contains a return value which will be
 425    stored into the appropriate register.  This can be used when we want
 426    to force the value returned by a function (see the "return" command
 427    for instance). */
 428
 429 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 430
 431 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);
 432 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);
 433 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 434
 435 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 436 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 437 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 438
 439 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
 440
 441 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 442 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 443 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
 444
 445 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 446 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 447 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 448
 449 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 450 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 451 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 452
 453 /* Return the adjusted address and kind to use for Z0/Z1 packets.
 454    KIND is usually the memory length of the breakpoint, but may have a
 455    different target-specific meaning. */
 456
 457 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 458 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 459 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
 460
 461 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 462
 463 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 464 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 465 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 466
 467 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 468 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 469 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 470
 471 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 472 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 473 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 474
 475 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 476 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 477
 478 /* A function can be addressed by either it's "pointer" (possibly a
 479    descriptor address) or "entry point" (first executable instruction).
 480    The method "convert_from_func_ptr_addr" converting the former to the
 481    latter.  gdbarch_deprecated_function_start_offset is being used to implement
 482    a simplified subset of that functionality - the function's address
 483    corresponds to the "function pointer" and the function's start
 484    corresponds to the "function entry point" - and hence is redundant. */
 485
 486 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 487 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 488
 489 /* Return the remote protocol register number associated with this
 490    register.  Normally the identity mapping. */
 491
 492 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 493 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 494 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 495
 496 /* Fetch the target specific address used to represent a load module. */
 497
 498 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 499
 500 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 501 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 502 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 503
 504 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 505 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 506
 507 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 508
 509 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 510 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 511 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 512
 513 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 514
 515 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 516 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 517 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 518
 519 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 520    frame-base.  Enable frame-base before frame-unwind. */
 521
 522 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 523
 524 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 525 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 526 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 527
 528 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 529
 530 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 531 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 532 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 533
 534 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 535 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 536 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 537
 538 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 539 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 540
 541 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 542 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 543 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 544
 545 /* On some machines there are bits in addresses which are not really
 546    part of the address, but are used by the kernel, the hardware, etc.
 547    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 548    we get a "real" address such as one would find in a symbol table.
 549    This is used only for addresses of instructions, and even then I'm
 550    not sure it's used in all contexts.  It exists to deal with there
 551    being a few stray bits in the PC which would mislead us, not as some
 552    sort of generic thing to handle alignment or segmentation (it's
 553    possible it should be in TARGET_READ_PC instead). */
 554
 555 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 556 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 557 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 558
 559 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 560    gdbarch_addr_bits_remove. */
 561
 562 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 563 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 564 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 565
 566 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 567    indicates if the target needs software single step.  An ISA method to
 568    implement it.
 569
 570    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 571    breakpoints using the breakpoint system instead of blatting memory directly
 572    (as with rs6000).
 573
 574    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 575    target can single step.  If not, then implement single step using breakpoints.
 576
 577    A return value of 1 means that the software_single_step breakpoints
 578    were inserted; 0 means they were not. */
 579
 580 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 581
 582 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 583 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 584 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 585
 586 /* Return non-zero if the processor is executing a delay slot and a
 587    further single-step is needed before the instruction finishes. */
 588
 589 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 590
 591 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 592 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 593 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 594
 595 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 596    disassembler.  Perhaps objdump can handle it? */
 597
 598 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 599 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 600 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 601
 602 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 603 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 604 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 605
 606 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
 607    evaluates non-zero, this is the address where the debugger will place
 608    a step-resume breakpoint to get us past the dynamic linker. */
 609
 610 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 611 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 612 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 613
 614 /* Some systems also have trampoline code for returning from shared libs. */
 615
 616 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 617 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 618 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 619
 620 /* A target might have problems with watchpoints as soon as the stack
 621    frame of the current function has been destroyed.  This mostly happens
 622    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 623    is defined to return a non-zero value if either the given addr is one
 624    instruction after the stack destroying instruction up to the trailing
 625    return instruction or if we can figure out that the stack frame has
 626    already been invalidated regardless of the value of addr.  Targets
 627    which don't suffer from that problem could just let this functionality
 628    untouched. */
 629
 630 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 631 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 632 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 633
 634 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 635 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 636 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 637
 638 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 639 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 640 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 641
 642 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 643 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 644
 645 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 646 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 647
 648 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 649
 650 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 651 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 652 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 653
 654 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 655
 656 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 657 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 658 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);
 659
 660 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 661
 662 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 663 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 664 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);
 665
 666 /* Is a register in a group */
 667
 668 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 669 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 670 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 671
 672 /* Fetch the pointer to the ith function argument. */
 673
 674 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 675
 676 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 677 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 678 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 679
 680 /* Return the appropriate register set for a core file section with
 681    name SECT_NAME and size SECT_SIZE. */
 682
 683 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 684
 685 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 686 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 687 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 688
 689 /* Supported register notes in a core file. */
 690
 691 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
 692 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
 693
 694 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
 695    core file into buffer READBUF with length LEN. */
 696
 697 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
 698
 699 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 700 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 701 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
 702
 703 /* How the core target converts a PTID from a core file to a string. */
 704
 705 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
 706
 707 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 708 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
 709 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
 710
 711 /* BFD target to use when generating a core file. */
 712
 713 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
 714
 715 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
 716 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
 717
 718 /* If the elements of C++ vtables are in-place function descriptors rather
 719    than normal function pointers (which may point to code or a descriptor),
 720    set this to one. */
 721
 722 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 723 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 724
 725 /* Set if the least significant bit of the delta is used instead of the least
 726    significant bit of the pfn for pointers to virtual member functions. */
 727
 728 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 729 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 730
 731 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 732
 733 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 734
 735 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 736 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 737 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 738
 739 /* The maximum length of an instruction on this architecture. */
 740
 741 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
 742
 743 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
 744 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
 745
 746 /* Copy the instruction at FROM to TO, and make any adjustments
 747    necessary to single-step it at that address.
 748
 749    REGS holds the state the thread's registers will have before
 750    executing the copied instruction; the PC in REGS will refer to FROM,
 751    not the copy at TO.  The caller should update it to point at TO later.
 752
 753    Return a pointer to data of the architecture's choice to be passed
 754    to gdbarch_displaced_step_fixup.  Or, return NULL to indicate that
 755    the instruction's effects have been completely simulated, with the
 756    resulting state written back to REGS.
 757
 758    For a general explanation of displaced stepping and how GDB uses it,
 759    see the comments in infrun.c.
 760
 761    The TO area is only guaranteed to have space for
 762    gdbarch_max_insn_length (arch) bytes, so this function must not
 763    write more bytes than that to that area.
 764
 765    If you do not provide this function, GDB assumes that the
 766    architecture does not support displaced stepping.
 767
 768    If your architecture doesn't need to adjust instructions before
 769    single-stepping them, consider using simple_displaced_step_copy_insn
 770    here. */
 771
 772 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
 773
 774 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 775 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 776 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
 777
 778 /* Return true if GDB should use hardware single-stepping to execute
 779    the displaced instruction identified by CLOSURE.  If false,
 780    GDB will simply restart execution at the displaced instruction
 781    location, and it is up to the target to ensure GDB will receive
 782    control again (e.g. by placing a software breakpoint instruction
 783    into the displaced instruction buffer).
 784
 785    The default implementation returns false on all targets that
 786    provide a gdbarch_software_single_step routine, and true otherwise. */
 787
 788 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 789 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 790 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
 791
 792 /* Fix up the state resulting from successfully single-stepping a
 793    displaced instruction, to give the result we would have gotten from
 794    stepping the instruction in its original location.
 795
 796    REGS is the register state resulting from single-stepping the
 797    displaced instruction.
 798
 799    CLOSURE is the result from the matching call to
 800    gdbarch_displaced_step_copy_insn.
 801
 802    If you provide gdbarch_displaced_step_copy_insn.but not this
 803    function, then GDB assumes that no fixup is needed after
 804    single-stepping the instruction.
 805
 806    For a general explanation of displaced stepping and how GDB uses it,
 807    see the comments in infrun.c. */
 808
 809 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
 810
 811 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 812 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 813 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
 814
 815 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
 816
 817    If you provide gdbarch_displaced_step_copy_insn, you must provide
 818    this function as well.
 819
 820    If your architecture uses closures that don't need to be freed, then
 821    you can use simple_displaced_step_free_closure here.
 822
 823    For a general explanation of displaced stepping and how GDB uses it,
 824    see the comments in infrun.c. */
 825
 826 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 827 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 828 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
 829
 830 /* Return the address of an appropriate place to put displaced
 831    instructions while we step over them.  There need only be one such
 832    place, since we're only stepping one thread over a breakpoint at a
 833    time.
 834
 835    For a general explanation of displaced stepping and how GDB uses it,
 836    see the comments in infrun.c. */
 837
 838 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
 839 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
 840 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
 841
 842 /* Relocate an instruction to execute at a different address.  OLDLOC
 843    is the address in the inferior memory where the instruction to
 844    relocate is currently at.  On input, TO points to the destination
 845    where we want the instruction to be copied (and possibly adjusted)
 846    to.  On output, it points to one past the end of the resulting
 847    instruction(s).  The effect of executing the instruction at TO shall
 848    be the same as if executing it at FROM.  For example, call
 849    instructions that implicitly push the return address on the stack
 850    should be adjusted to return to the instruction after OLDLOC;
 851    relative branches, and other PC-relative instructions need the
 852    offset adjusted; etc. */
 853
 854 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
 855
 856 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 857 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 858 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
 859
 860 /* Refresh overlay mapped state for section OSECT. */
 861
 862 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 863
 864 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 865 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 866 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 867
 868 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
 869
 870 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 871 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 872 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
 873
 874 /* Handle special encoding of static variables in stabs debug info. */
 875
 876 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
 877
 878 typedef char * (gdbarch_static_transform_name_ftype) (char *name);
 879 extern char * gdbarch_static_transform_name (struct gdbarch *gdbarch, char *name);
 880 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
 881
 882 /* Set if the address in N_SO or N_FUN stabs may be zero. */
 883
 884 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
 885 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
 886
 887 /* Parse the instruction at ADDR storing in the record execution log
 888    the registers REGCACHE and memory ranges that will be affected when
 889    the instruction executes, along with their current values.
 890    Return -1 if something goes wrong, 0 otherwise. */
 891
 892 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
 893
 894 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 895 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 896 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
 897
 898 /* Save process state after a signal.
 899    Return -1 if something goes wrong, 0 otherwise. */
 900
 901 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
 902
 903 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 904 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 905 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
 906
 907 /* Signal translation: translate inferior's signal (host's) number into
 908    GDB's representation. */
 909
 910 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo);
 911 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo);
 912 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host);
 913
 914 /* Signal translation: translate GDB's signal number into inferior's host
 915    signal number. */
 916
 917 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts);
 918 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
 919 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
 920
 921 /* Extra signal info inspection.
 922
 923    Return a type suitable to inspect extra signal information. */
 924
 925 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
 926
 927 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
 928 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
 929 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
 930
 931 /* Record architecture-specific information from the symbol table. */
 932
 933 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
 934
 935 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 936 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 937 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
 938
 939 /* Function for the 'catch syscall' feature.
 940    Get architecture-specific system calls information from registers. */
 941
 942 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
 943
 944 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 945 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
 946 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
 947
 948 /* True if the list of shared libraries is one and only for all
 949    processes, as opposed to a list of shared libraries per inferior.
 950    This usually means that all processes, although may or may not share
 951    an address space, will see the same set of symbols at the same
 952    addresses. */
 953
 954 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
 955 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
 956
 957 /* On some targets, even though each inferior has its own private
 958    address space, the debug interface takes care of making breakpoints
 959    visible to all address spaces automatically.  For such cases,
 960    this property should be set to true. */
 961
 962 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
 963 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
 964
 965 /* True if inferiors share an address space (e.g., uClinux). */
 966
 967 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
 968 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
 969 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
 970
 971 /* True if a fast tracepoint can be set at an address. */
 972
 973 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
 974 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
 975 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
 976
 977 /* Return the "auto" target charset. */
 978
 979 typedef const char * (gdbarch_auto_charset_ftype) (void);
 980 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
 981 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
 982
 983 /* Return the "auto" target wide charset. */
 984
 985 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
 986 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
 987 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
 988
 989 /* If non-empty, this is a file extension that will be opened in place
 990    of the file extension reported by the shared library list.
 991
 992    This is most useful for toolchains that use a post-linker tool,
 993    where the names of the files run on the target differ in extension
 994    compared to the names of the files GDB should load for debug info. */
 995
 996 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
 997 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
 998
 999 /* If true, the target OS has DOS-based file system semantics.  That
1000    is, absolute paths include a drive name, and the backslash is
1001    considered a directory separator. */
1002
1003 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1004 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1005
1006 /* Definition for an unknown syscall, used basically in error-cases.  */
1007 #define UNKNOWN_SYSCALL (-1)
1008
1009 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1010
1011
1012 /* Mechanism for co-ordinating the selection of a specific
1013    architecture.
1014
1015    GDB targets (*-tdep.c) can register an interest in a specific
1016    architecture.  Other GDB components can register a need to maintain
1017    per-architecture data.
1018
1019    The mechanisms below ensures that there is only a loose connection
1020    between the set-architecture command and the various GDB
1021    components.  Each component can independently register their need
1022    to maintain architecture specific data with gdbarch.
1023
1024    Pragmatics:
1025
1026    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1027    didn't scale.
1028
1029    The more traditional mega-struct containing architecture specific
1030    data for all the various GDB components was also considered.  Since
1031    GDB is built from a variable number of (fairly independent)
1032    components it was determined that the global aproach was not
1033    applicable.  */
1034
1035
1036 /* Register a new architectural family with GDB.
1037
1038    Register support for the specified ARCHITECTURE with GDB.  When
1039    gdbarch determines that the specified architecture has been
1040    selected, the corresponding INIT function is called.
1041
1042    --
1043
1044    The INIT function takes two parameters: INFO which contains the
1045    information available to gdbarch about the (possibly new)
1046    architecture; ARCHES which is a list of the previously created
1047    ``struct gdbarch'' for this architecture.
1048
1049    The INFO parameter is, as far as possible, be pre-initialized with
1050    information obtained from INFO.ABFD or the global defaults.
1051
1052    The ARCHES parameter is a linked list (sorted most recently used)
1053    of all the previously created architures for this architecture
1054    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1055    values from the previously selected architecture for this
1056    architecture family.
1057
1058    The INIT function shall return any of: NULL - indicating that it
1059    doesn't recognize the selected architecture; an existing ``struct
1060    gdbarch'' from the ARCHES list - indicating that the new
1061    architecture is just a synonym for an earlier architecture (see
1062    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1063    - that describes the selected architecture (see gdbarch_alloc()).
1064
1065    The DUMP_TDEP function shall print out all target specific values.
1066    Care should be taken to ensure that the function works in both the
1067    multi-arch and non- multi-arch cases.  */
1068
1069 struct gdbarch_list
1070 {
1071   struct gdbarch *gdbarch;
1072   struct gdbarch_list *next;
1073 };
1074
1075 struct gdbarch_info
1076 {
1077   /* Use default: NULL (ZERO).  */
1078   const struct bfd_arch_info *bfd_arch_info;
1079
1080   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1081   int byte_order;
1082
1083   int byte_order_for_code;
1084
1085   /* Use default: NULL (ZERO).  */
1086   bfd *abfd;
1087
1088   /* Use default: NULL (ZERO).  */
1089   struct gdbarch_tdep_info *tdep_info;
1090
1091   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1092   enum gdb_osabi osabi;
1093
1094   /* Use default: NULL (ZERO).  */
1095   const struct target_desc *target_desc;
1096 };
1097
1098 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1099 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1100
1101 /* DEPRECATED - use gdbarch_register() */
1102 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1103
1104 extern void gdbarch_register (enum bfd_architecture architecture,
1105                               gdbarch_init_ftype *,
1106                               gdbarch_dump_tdep_ftype *);
1107
1108
1109 /* Return a freshly allocated, NULL terminated, array of the valid
1110    architecture names.  Since architectures are registered during the
1111    _initialize phase this function only returns useful information
1112    once initialization has been completed.  */
1113
1114 extern const char **gdbarch_printable_names (void);
1115
1116
1117 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1118    matches the information provided by INFO.  */
1119
1120 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1121
1122
1123 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1124    basic initialization using values obtained from the INFO and TDEP
1125    parameters.  set_gdbarch_*() functions are called to complete the
1126    initialization of the object.  */
1127
1128 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1129
1130
1131 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1132    It is assumed that the caller freeds the ``struct
1133    gdbarch_tdep''.  */
1134
1135 extern void gdbarch_free (struct gdbarch *);
1136
1137
1138 /* Helper function.  Allocate memory from the ``struct gdbarch''
1139    obstack.  The memory is freed when the corresponding architecture
1140    is also freed.  */
1141
1142 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1143 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1144 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1145
1146
1147 /* Helper function.  Force an update of the current architecture.
1148
1149    The actual architecture selected is determined by INFO, ``(gdb) set
1150    architecture'' et.al., the existing architecture and BFD's default
1151    architecture.  INFO should be initialized to zero and then selected
1152    fields should be updated.
1153
1154    Returns non-zero if the update succeeds.  */
1155
1156 extern int gdbarch_update_p (struct gdbarch_info info);
1157
1158
1159 /* Helper function.  Find an architecture matching info.
1160
1161    INFO should be initialized using gdbarch_info_init, relevant fields
1162    set, and then finished using gdbarch_info_fill.
1163
1164    Returns the corresponding architecture, or NULL if no matching
1165    architecture was found.  */
1166
1167 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1168
1169
1170 /* Helper function.  Set the global "target_gdbarch" to "gdbarch".
1171
1172    FIXME: kettenis/20031124: Of the functions that follow, only
1173    gdbarch_from_bfd is supposed to survive.  The others will
1174    dissappear since in the future GDB will (hopefully) be truly
1175    multi-arch.  However, for now we're still stuck with the concept of
1176    a single active architecture.  */
1177
1178 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1179
1180
1181 /* Register per-architecture data-pointer.
1182
1183    Reserve space for a per-architecture data-pointer.  An identifier
1184    for the reserved data-pointer is returned.  That identifer should
1185    be saved in a local static variable.
1186
1187    Memory for the per-architecture data shall be allocated using
1188    gdbarch_obstack_zalloc.  That memory will be deleted when the
1189    corresponding architecture object is deleted.
1190
1191    When a previously created architecture is re-selected, the
1192    per-architecture data-pointer for that previous architecture is
1193    restored.  INIT() is not re-called.
1194
1195    Multiple registrarants for any architecture are allowed (and
1196    strongly encouraged).  */
1197
1198 struct gdbarch_data;
1199
1200 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1201 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1202 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1203 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1204 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1205                                          struct gdbarch_data *data,
1206                                          void *pointer);
1207
1208 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1209
1210
1211 /* Set the dynamic target-system-dependent parameters (architecture,
1212    byte-order, ...) using information found in the BFD.  */
1213
1214 extern void set_gdbarch_from_file (bfd *);
1215
1216
1217 /* Initialize the current architecture to the "first" one we find on
1218    our list.  */
1219
1220 extern void initialize_current_architecture (void);
1221
1222 /* gdbarch trace variable */
1223 extern int gdbarch_debug;
1224
1225 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1226
1227 #endif