gdb/gdbarch.h

   1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
   2 /* vi:set ro: */
   3
   4 /* Dynamic architecture support for GDB, the GNU debugger.
   5
   6    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   7    2007, 2008, 2009 Free Software Foundation, Inc.
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  23
  24 /* This file was created with the aid of ``gdbarch.sh''.
  25
  26    The Bourne shell script ``gdbarch.sh'' creates the files
  27    ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
  28    against the existing ``gdbarch.[hc]''.  Any differences found
  29    being reported.
  30
  31    If editing this file, please also run gdbarch.sh and merge any
  32    changes into that script. Conversely, when making sweeping changes
  33    to this file, modifying gdbarch.sh and using its output may prove
  34    easier.  */
  35
  36 #ifndef GDBARCH_H
  37 #define GDBARCH_H
  38
  39 struct floatformat;
  40 struct ui_file;
  41 struct frame_info;
  42 struct value;
  43 struct objfile;
  44 struct obj_section;
  45 struct minimal_symbol;
  46 struct regcache;
  47 struct reggroup;
  48 struct regset;
  49 struct disassemble_info;
  50 struct target_ops;
  51 struct obstack;
  52 struct bp_target_info;
  53 struct target_desc;
  54 struct displaced_step_closure;
  55 struct core_regset_section;
  56 struct syscall;
  57 struct agent_expr;
  58 struct axs_value;
  59 struct stap_parse_info;
  60
  61 /* The architecture associated with the connection to the target.
  62
  63    The architecture vector provides some information that is really
  64    a property of the target: The layout of certain packets, for instance;
  65    or the solib_ops vector.  Etc.  To differentiate architecture accesses
  66    to per-target properties from per-thread/per-frame/per-objfile properties,
  67    accesses to per-target properties should be made through target_gdbarch.
  68
  69    Eventually, when support for multiple targets is implemented in
  70    GDB, this global should be made target-specific.  */
  71 extern struct gdbarch *target_gdbarch;
  72
  73 /* Callback type for the 'iterate_over_objfiles_in_search_order'
  74    gdbarch  method.  */
  75
  76 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
  77   (struct objfile *objfile, void *cb_data);
  78
  79
  80 /* The following are pre-initialized by GDBARCH.  */
  81
  82 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
  83 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized.  */
  84
  85 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
  86 /* set_gdbarch_byte_order() - not applicable - pre-initialized.  */
  87
  88 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
  89 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized.  */
  90
  91 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
  92 /* set_gdbarch_osabi() - not applicable - pre-initialized.  */
  93
  94 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
  95 /* set_gdbarch_target_desc() - not applicable - pre-initialized.  */
  96
  97
  98 /* The following are initialized by the target dependent code.  */
  99
 100 /* The bit byte-order has to do just with numbering of bits in debugging symbols
 101    and such.  Conceptually, it's quite separate from byte/word byte order. */
 102
 103 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
 104 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
 105
 106 /* Number of bits in a char or unsigned char for the target machine.
 107    Just like CHAR_BIT in <limits.h> but describes the target machine.
 108    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 109
 110    Number of bits in a short or unsigned short for the target machine. */
 111
 112 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
 113 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
 114
 115 /* Number of bits in an int or unsigned int for the target machine. */
 116
 117 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
 118 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
 119
 120 /* Number of bits in a long or unsigned long for the target machine. */
 121
 122 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
 123 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
 124
 125 /* Number of bits in a long long or unsigned long long for the target
 126    machine. */
 127
 128 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
 129 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 130
 131 /* Alignment of a long long or unsigned long long for the target
 132    machine. */
 133
 134 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch);
 135 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit);
 136
 137 /* The ABI default bit-size and format for "half", "float", "double", and
 138    "long double".  These bit/format pairs should eventually be combined
 139    into a single object.  For the moment, just initialize them as a pair.
 140    Each format describes both the big and little endian layouts (if
 141    useful). */
 142
 143 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
 144 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
 145
 146 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
 147 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
 148
 149 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 150 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 151
 152 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 153 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 154
 155 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 156 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 157
 158 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 159 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 160
 161 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 162 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 163
 164 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 165 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 166
 167 /* For most targets, a pointer on the target and its representation as an
 168    address in GDB have the same size and "look the same".  For such a
 169    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 170    / addr_bit will be set from it.
 171
 172    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 173    also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
 174    gdbarch_address_to_pointer as well.
 175
 176    ptr_bit is the size of a pointer on the target */
 177
 178 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 179 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 180
 181 /* addr_bit is the size of a target address as represented in gdb */
 182
 183 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 184 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 185
 186 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
 187    info.  For .debug_frame FDEs, this is supposed to be the target address
 188    size from the associated CU header, and which is equivalent to the
 189    DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
 190    Unfortunately there is no good way to determine this value.  Therefore
 191    dwarf2_addr_size simply defaults to the target pointer size.
 192
 193    dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
 194    defined using the target's pointer size so far.
 195
 196    Note that dwarf2_addr_size only needs to be redefined by a target if the
 197    GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
 198    and if Dwarf versions < 4 need to be supported. */
 199
 200 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
 201 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
 202
 203 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 204
 205 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 206 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 207
 208 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 209
 210 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 211 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 212 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 213
 214 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 215
 216 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 217 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 218 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 219
 220 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 221    whole scheme for dealing with "frames" and "frame pointers" needs a
 222    serious shakedown. */
 223
 224 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 225 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 226 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 227
 228 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 229
 230 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 231 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 232 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 233
 234 /* Read a register into a new struct value.  If the register is wholly
 235    or partly unavailable, this should call mark_value_bytes_unavailable
 236    as appropriate.  If this is defined, then pseudo_register_read will
 237    never be called. */
 238
 239 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
 240
 241 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
 242 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
 243 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
 244
 245 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 246
 247 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 248 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 249 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 250
 251 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 252 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 253
 254 /* This macro gives the number of pseudo-registers that live in the
 255    register namespace but do not get fetched or stored on the target.
 256    These pseudo-registers may be aliases for other registers,
 257    combinations of other registers, or they may be computed by GDB. */
 258
 259 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 260 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 261
 262 /* Assemble agent expression bytecode to collect pseudo-register REG.
 263    Return -1 if something goes wrong, 0 otherwise. */
 264
 265 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
 266
 267 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 268 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 269 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
 270
 271 /* Assemble agent expression bytecode to push the value of pseudo-register
 272    REG on the interpreter stack.
 273    Return -1 if something goes wrong, 0 otherwise. */
 274
 275 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
 276
 277 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 278 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 279 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
 280
 281 /* GDB's standard (or well known) register numbers.  These can map onto
 282    a real register or a pseudo (computed) register or not be defined at
 283    all (-1).
 284    gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
 285
 286 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 287 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 288
 289 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 290 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 291
 292 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 293 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 294
 295 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 296 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 297
 298 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 299
 300 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
 301 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 302 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 303
 304 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 305
 306 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
 307 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 308 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 309
 310 /* Convert from an sdb register number to an internal gdb register number. */
 311
 312 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
 313 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 314 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 315
 316 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
 317
 318 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
 319 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 320 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 321
 322 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
 323 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 324 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 325
 326 /* Return the type of a register specified by the architecture.  Only
 327    the register cache should call this function directly; others should
 328    use "register_type". */
 329
 330 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 331
 332 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 333 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 334 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 335
 336 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 337
 338 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
 339
 340 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
 341 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
 342 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
 343
 344 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
 345    deprecated_fp_regnum. */
 346
 347 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 348 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 349
 350 /* See gdbint.texinfo.  See infcall.c. */
 351
 352 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 353
 354 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);
 355 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);
 356 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 357
 358 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 359 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 360
 361 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 362
 363 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);
 364 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);
 365 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 366
 367 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 368 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 369 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 370
 371 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 372
 373 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 374 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 375 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 376
 377 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 378
 379 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 380 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 381 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 382
 383 /* MAP a GDB RAW register number onto a simulator register number.  See
 384    also include/...-sim.h. */
 385
 386 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
 387 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 388 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 389
 390 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
 391 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 392 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 393
 394 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
 395 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 396 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 397
 398 /* setjmp/longjmp support. */
 399
 400 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 401
 402 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 403 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 404 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 405
 406 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 407 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 408
 409 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
 410 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 411 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 412
 413 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
 414 extern int gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
 415 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 416
 417 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 418 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 419 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 420
 421 /* Construct a value representing the contents of register REGNUM in
 422    frame FRAME, interpreted as type TYPE.  The routine needs to
 423    allocate and return a struct value with all value attributes
 424    (but not the value contents) filled in. */
 425
 426 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 427 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 428 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 429
 430 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 431 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 432 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 433
 434 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 435 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 436 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 437
 438 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 439
 440 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 441 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 442 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 443
 444 /* Return the return-value convention that will be used by FUNCTION
 445    to return a value of type VALTYPE.  FUNCTION may be NULL in which
 446    case the return convention is computed based only on VALTYPE.
 447
 448    If READBUF is not NULL, extract the return value and save it in this buffer.
 449
 450    If WRITEBUF is not NULL, it contains a return value which will be
 451    stored into the appropriate register.  This can be used when we want
 452    to force the value returned by a function (see the "return" command
 453    for instance). */
 454
 455 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 456
 457 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 458 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 459 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 460
 461 /* Return true if the return value of function is stored in the first hidden
 462    parameter.  In theory, this feature should be language-dependent, specified
 463    by language and its ABI, such as C++.  Unfortunately, compiler may
 464    implement it to a target-dependent feature.  So that we need such hook here
 465    to be aware of this in GDB. */
 466
 467 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
 468 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type);
 469 extern void set_gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, gdbarch_return_in_first_hidden_param_p_ftype *return_in_first_hidden_param_p);
 470
 471 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 472 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 473 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 474
 475 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
 476
 477 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 478 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 479 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
 480
 481 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 482 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 483 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 484
 485 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 486 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 487 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 488
 489 /* Return the adjusted address and kind to use for Z0/Z1 packets.
 490    KIND is usually the memory length of the breakpoint, but may have a
 491    different target-specific meaning. */
 492
 493 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 494 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 495 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
 496
 497 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 498
 499 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 500 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 501 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 502
 503 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 504 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 505 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 506
 507 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 508 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 509 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 510
 511 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 512 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 513
 514 /* A function can be addressed by either it's "pointer" (possibly a
 515    descriptor address) or "entry point" (first executable instruction).
 516    The method "convert_from_func_ptr_addr" converting the former to the
 517    latter.  gdbarch_deprecated_function_start_offset is being used to implement
 518    a simplified subset of that functionality - the function's address
 519    corresponds to the "function pointer" and the function's start
 520    corresponds to the "function entry point" - and hence is redundant. */
 521
 522 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 523 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 524
 525 /* Return the remote protocol register number associated with this
 526    register.  Normally the identity mapping. */
 527
 528 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 529 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 530 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 531
 532 /* Fetch the target specific address used to represent a load module. */
 533
 534 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 535
 536 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 537 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 538 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 539
 540 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 541 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 542
 543 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 544
 545 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 546 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 547 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 548
 549 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 550
 551 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 552 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 553 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 554
 555 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 556    frame-base.  Enable frame-base before frame-unwind. */
 557
 558 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 559
 560 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 561 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 562 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 563
 564 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 565
 566 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 567 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 568 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 569
 570 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 571 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 572 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 573
 574 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 575 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 576
 577 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 578 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 579 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 580
 581 /* On some machines there are bits in addresses which are not really
 582    part of the address, but are used by the kernel, the hardware, etc.
 583    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 584    we get a "real" address such as one would find in a symbol table.
 585    This is used only for addresses of instructions, and even then I'm
 586    not sure it's used in all contexts.  It exists to deal with there
 587    being a few stray bits in the PC which would mislead us, not as some
 588    sort of generic thing to handle alignment or segmentation (it's
 589    possible it should be in TARGET_READ_PC instead). */
 590
 591 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 592 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 593 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 594
 595 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 596    gdbarch_addr_bits_remove. */
 597
 598 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 599 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 600 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 601
 602 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 603    indicates if the target needs software single step.  An ISA method to
 604    implement it.
 605
 606    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 607    breakpoints using the breakpoint system instead of blatting memory directly
 608    (as with rs6000).
 609
 610    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 611    target can single step.  If not, then implement single step using breakpoints.
 612
 613    A return value of 1 means that the software_single_step breakpoints
 614    were inserted; 0 means they were not. */
 615
 616 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 617
 618 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 619 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 620 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 621
 622 /* Return non-zero if the processor is executing a delay slot and a
 623    further single-step is needed before the instruction finishes. */
 624
 625 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 626
 627 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 628 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 629 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 630
 631 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 632    disassembler.  Perhaps objdump can handle it? */
 633
 634 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 635 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 636 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 637
 638 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 639 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 640 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 641
 642 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
 643    evaluates non-zero, this is the address where the debugger will place
 644    a step-resume breakpoint to get us past the dynamic linker. */
 645
 646 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 647 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 648 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 649
 650 /* Some systems also have trampoline code for returning from shared libs. */
 651
 652 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
 653 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
 654 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 655
 656 /* A target might have problems with watchpoints as soon as the stack
 657    frame of the current function has been destroyed.  This mostly happens
 658    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 659    is defined to return a non-zero value if either the given addr is one
 660    instruction after the stack destroying instruction up to the trailing
 661    return instruction or if we can figure out that the stack frame has
 662    already been invalidated regardless of the value of addr.  Targets
 663    which don't suffer from that problem could just let this functionality
 664    untouched. */
 665
 666 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 667 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 668 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 669
 670 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 671 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 672 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 673
 674 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 675 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 676 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 677
 678 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 679 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 680
 681 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 682 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 683
 684 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 685
 686 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 687 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 688 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 689
 690 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 691
 692 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 693 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 694 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);
 695
 696 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 697
 698 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 699 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 700 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);
 701
 702 /* Is a register in a group */
 703
 704 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 705 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 706 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 707
 708 /* Fetch the pointer to the ith function argument. */
 709
 710 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 711
 712 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 713 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 714 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 715
 716 /* Return the appropriate register set for a core file section with
 717    name SECT_NAME and size SECT_SIZE. */
 718
 719 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 720
 721 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 722 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 723 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 724
 725 /* Supported register notes in a core file. */
 726
 727 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
 728 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
 729
 730 /* Create core file notes */
 731
 732 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
 733
 734 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
 735 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
 736 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
 737
 738 /* Find core file memory regions */
 739
 740 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
 741
 742 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
 743 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
 744 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
 745
 746 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
 747    core file into buffer READBUF with length LEN. */
 748
 749 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
 750
 751 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 752 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 753 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
 754
 755 /* How the core target converts a PTID from a core file to a string. */
 756
 757 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
 758
 759 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 760 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
 761 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
 762
 763 /* BFD target to use when generating a core file. */
 764
 765 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
 766
 767 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
 768 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
 769
 770 /* If the elements of C++ vtables are in-place function descriptors rather
 771    than normal function pointers (which may point to code or a descriptor),
 772    set this to one. */
 773
 774 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 775 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 776
 777 /* Set if the least significant bit of the delta is used instead of the least
 778    significant bit of the pfn for pointers to virtual member functions. */
 779
 780 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 781 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 782
 783 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 784
 785 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 786
 787 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 788 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 789 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 790
 791 /* The maximum length of an instruction on this architecture in bytes. */
 792
 793 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
 794
 795 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
 796 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
 797
 798 /* Copy the instruction at FROM to TO, and make any adjustments
 799    necessary to single-step it at that address.
 800
 801    REGS holds the state the thread's registers will have before
 802    executing the copied instruction; the PC in REGS will refer to FROM,
 803    not the copy at TO.  The caller should update it to point at TO later.
 804
 805    Return a pointer to data of the architecture's choice to be passed
 806    to gdbarch_displaced_step_fixup.  Or, return NULL to indicate that
 807    the instruction's effects have been completely simulated, with the
 808    resulting state written back to REGS.
 809
 810    For a general explanation of displaced stepping and how GDB uses it,
 811    see the comments in infrun.c.
 812
 813    The TO area is only guaranteed to have space for
 814    gdbarch_max_insn_length (arch) bytes, so this function must not
 815    write more bytes than that to that area.
 816
 817    If you do not provide this function, GDB assumes that the
 818    architecture does not support displaced stepping.
 819
 820    If your architecture doesn't need to adjust instructions before
 821    single-stepping them, consider using simple_displaced_step_copy_insn
 822    here. */
 823
 824 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
 825
 826 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 827 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 828 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
 829
 830 /* Return true if GDB should use hardware single-stepping to execute
 831    the displaced instruction identified by CLOSURE.  If false,
 832    GDB will simply restart execution at the displaced instruction
 833    location, and it is up to the target to ensure GDB will receive
 834    control again (e.g. by placing a software breakpoint instruction
 835    into the displaced instruction buffer).
 836
 837    The default implementation returns false on all targets that
 838    provide a gdbarch_software_single_step routine, and true otherwise. */
 839
 840 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 841 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 842 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
 843
 844 /* Fix up the state resulting from successfully single-stepping a
 845    displaced instruction, to give the result we would have gotten from
 846    stepping the instruction in its original location.
 847
 848    REGS is the register state resulting from single-stepping the
 849    displaced instruction.
 850
 851    CLOSURE is the result from the matching call to
 852    gdbarch_displaced_step_copy_insn.
 853
 854    If you provide gdbarch_displaced_step_copy_insn.but not this
 855    function, then GDB assumes that no fixup is needed after
 856    single-stepping the instruction.
 857
 858    For a general explanation of displaced stepping and how GDB uses it,
 859    see the comments in infrun.c. */
 860
 861 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
 862
 863 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 864 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 865 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
 866
 867 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
 868
 869    If you provide gdbarch_displaced_step_copy_insn, you must provide
 870    this function as well.
 871
 872    If your architecture uses closures that don't need to be freed, then
 873    you can use simple_displaced_step_free_closure here.
 874
 875    For a general explanation of displaced stepping and how GDB uses it,
 876    see the comments in infrun.c. */
 877
 878 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 879 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 880 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
 881
 882 /* Return the address of an appropriate place to put displaced
 883    instructions while we step over them.  There need only be one such
 884    place, since we're only stepping one thread over a breakpoint at a
 885    time.
 886
 887    For a general explanation of displaced stepping and how GDB uses it,
 888    see the comments in infrun.c. */
 889
 890 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
 891 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
 892 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
 893
 894 /* Relocate an instruction to execute at a different address.  OLDLOC
 895    is the address in the inferior memory where the instruction to
 896    relocate is currently at.  On input, TO points to the destination
 897    where we want the instruction to be copied (and possibly adjusted)
 898    to.  On output, it points to one past the end of the resulting
 899    instruction(s).  The effect of executing the instruction at TO shall
 900    be the same as if executing it at FROM.  For example, call
 901    instructions that implicitly push the return address on the stack
 902    should be adjusted to return to the instruction after OLDLOC;
 903    relative branches, and other PC-relative instructions need the
 904    offset adjusted; etc. */
 905
 906 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
 907
 908 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 909 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 910 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
 911
 912 /* Refresh overlay mapped state for section OSECT. */
 913
 914 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 915
 916 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 917 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 918 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 919
 920 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
 921
 922 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 923 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 924 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
 925
 926 /* Handle special encoding of static variables in stabs debug info. */
 927
 928 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
 929
 930 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
 931 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
 932 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
 933
 934 /* Set if the address in N_SO or N_FUN stabs may be zero. */
 935
 936 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
 937 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
 938
 939 /* Parse the instruction at ADDR storing in the record execution log
 940    the registers REGCACHE and memory ranges that will be affected when
 941    the instruction executes, along with their current values.
 942    Return -1 if something goes wrong, 0 otherwise. */
 943
 944 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
 945
 946 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 947 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 948 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
 949
 950 /* Save process state after a signal.
 951    Return -1 if something goes wrong, 0 otherwise. */
 952
 953 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
 954
 955 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
 956 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
 957 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
 958
 959 /* Signal translation: translate inferior's signal (target's) number
 960    into GDB's representation.  The implementation of this method must
 961    be host independent.  IOW, don't rely on symbols of the NAT_FILE
 962    header (the nm-*.h files), the host <signal.h> header, or similar
 963    headers.  This is mainly used when cross-debugging core files ---
 964    "Live" targets hide the translation behind the target interface
 965    (target_wait, target_resume, etc.). */
 966
 967 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
 968
 969 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
 970 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
 971 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
 972
 973 /* Extra signal info inspection.
 974
 975    Return a type suitable to inspect extra signal information. */
 976
 977 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
 978
 979 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
 980 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
 981 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
 982
 983 /* Record architecture-specific information from the symbol table. */
 984
 985 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
 986
 987 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 988 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 989 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
 990
 991 /* Function for the 'catch syscall' feature.
 992    Get architecture-specific system calls information from registers. */
 993
 994 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
 995
 996 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 997 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
 998 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
 999
1000 /* SystemTap related fields and functions.
1001    Prefix used to mark an integer constant on the architecture's assembly
1002    For example, on x86 integer constants are written as:
1003
1004     $10 ;; integer constant 10
1005
1006    in this case, this prefix would be the character `$'. */
1007
1008 extern const char * gdbarch_stap_integer_prefix (struct gdbarch *gdbarch);
1009 extern void set_gdbarch_stap_integer_prefix (struct gdbarch *gdbarch, const char * stap_integer_prefix);
1010
1011 /* Suffix used to mark an integer constant on the architecture's assembly. */
1012
1013 extern const char * gdbarch_stap_integer_suffix (struct gdbarch *gdbarch);
1014 extern void set_gdbarch_stap_integer_suffix (struct gdbarch *gdbarch, const char * stap_integer_suffix);
1015
1016 /* Prefix used to mark a register name on the architecture's assembly.
1017    For example, on x86 the register name is written as:
1018
1019     %eax ;; register eax
1020
1021    in this case, this prefix would be the character `%'. */
1022
1023 extern const char * gdbarch_stap_register_prefix (struct gdbarch *gdbarch);
1024 extern void set_gdbarch_stap_register_prefix (struct gdbarch *gdbarch, const char * stap_register_prefix);
1025
1026 /* Suffix used to mark a register name on the architecture's assembly */
1027
1028 extern const char * gdbarch_stap_register_suffix (struct gdbarch *gdbarch);
1029 extern void set_gdbarch_stap_register_suffix (struct gdbarch *gdbarch, const char * stap_register_suffix);
1030
1031 /* Prefix used to mark a register indirection on the architecture's assembly.
1032    For example, on x86 the register indirection is written as:
1033
1034     (%eax) ;; indirecting eax
1035
1036    in this case, this prefix would be the charater `('.
1037
1038    Please note that we use the indirection prefix also for register
1039    displacement, e.g., `4(%eax)' on x86. */
1040
1041 extern const char * gdbarch_stap_register_indirection_prefix (struct gdbarch *gdbarch);
1042 extern void set_gdbarch_stap_register_indirection_prefix (struct gdbarch *gdbarch, const char * stap_register_indirection_prefix);
1043
1044 /* Suffix used to mark a register indirection on the architecture's assembly.
1045    For example, on x86 the register indirection is written as:
1046
1047     (%eax) ;; indirecting eax
1048
1049    in this case, this prefix would be the charater `)'.
1050
1051    Please note that we use the indirection suffix also for register
1052    displacement, e.g., `4(%eax)' on x86. */
1053
1054 extern const char * gdbarch_stap_register_indirection_suffix (struct gdbarch *gdbarch);
1055 extern void set_gdbarch_stap_register_indirection_suffix (struct gdbarch *gdbarch, const char * stap_register_indirection_suffix);
1056
1057 /* Prefix used to name a register using GDB's nomenclature.
1058
1059    For example, on PPC a register is represented by a number in the assembly
1060    language (e.g., `10' is the 10th general-purpose register).  However,
1061    inside GDB this same register has an `r' appended to its name, so the 10th
1062    register would be represented as `r10' internally. */
1063
1064 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1065 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1066
1067 /* Suffix used to name a register using GDB's nomenclature. */
1068
1069 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1070 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1071
1072 /* Check if S is a single operand.
1073
1074    Single operands can be:
1075     - Literal integers, e.g. `$10' on x86
1076     - Register access, e.g. `%eax' on x86
1077     - Register indirection, e.g. `(%eax)' on x86
1078     - Register displacement, e.g. `4(%eax)' on x86
1079
1080    This function should check for these patterns on the string
1081    and return 1 if some were found, or zero otherwise.  Please try to match
1082    as much info as you can from the string, i.e., if you have to match
1083    something like `(%', do not match just the `('. */
1084
1085 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1086
1087 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1088 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1089 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1090
1091 /* Function used to handle a "special case" in the parser.
1092
1093    A "special case" is considered to be an unknown token, i.e., a token
1094    that the parser does not know how to parse.  A good example of special
1095    case would be ARM's register displacement syntax:
1096
1097     [R0, #4]  ;; displacing R0 by 4
1098
1099    Since the parser assumes that a register displacement is of the form:
1100
1101     <number> <indirection_prefix> <register_name> <indirection_suffix>
1102
1103    it means that it will not be able to recognize and parse this odd syntax.
1104    Therefore, we should add a special case function that will handle this token.
1105
1106    This function should generate the proper expression form of the expression
1107    using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1108    and so on).  It should also return 1 if the parsing was successful, or zero
1109    if the token was not recognized as a special token (in this case, returning
1110    zero means that the special parser is deferring the parsing to the generic
1111    parser), and should advance the buffer pointer (p->arg). */
1112
1113 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1114
1115 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1116 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1117 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1118
1119 /* True if the list of shared libraries is one and only for all
1120    processes, as opposed to a list of shared libraries per inferior.
1121    This usually means that all processes, although may or may not share
1122    an address space, will see the same set of symbols at the same
1123    addresses. */
1124
1125 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1126 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1127
1128 /* On some targets, even though each inferior has its own private
1129    address space, the debug interface takes care of making breakpoints
1130    visible to all address spaces automatically.  For such cases,
1131    this property should be set to true. */
1132
1133 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1134 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1135
1136 /* True if inferiors share an address space (e.g., uClinux). */
1137
1138 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1139 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1140 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1141
1142 /* True if a fast tracepoint can be set at an address. */
1143
1144 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1145 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1146 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1147
1148 /* Return the "auto" target charset. */
1149
1150 typedef const char * (gdbarch_auto_charset_ftype) (void);
1151 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1152 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1153
1154 /* Return the "auto" target wide charset. */
1155
1156 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1157 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1158 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1159
1160 /* If non-empty, this is a file extension that will be opened in place
1161    of the file extension reported by the shared library list.
1162
1163    This is most useful for toolchains that use a post-linker tool,
1164    where the names of the files run on the target differ in extension
1165    compared to the names of the files GDB should load for debug info. */
1166
1167 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1168 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1169
1170 /* If true, the target OS has DOS-based file system semantics.  That
1171    is, absolute paths include a drive name, and the backslash is
1172    considered a directory separator. */
1173
1174 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1175 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1176
1177 /* Generate bytecodes to collect the return address in a frame.
1178    Since the bytecodes run on the target, possibly with GDB not even
1179    connected, the full unwinding machinery is not available, and
1180    typically this function will issue bytecodes for one or more likely
1181    places that the return address may be found. */
1182
1183 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1184 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1185 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1186
1187 /* Implement the "info proc" command. */
1188
1189 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1190
1191 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, char *args, enum info_proc_what what);
1192 extern void gdbarch_info_proc (struct gdbarch *gdbarch, char *args, enum info_proc_what what);
1193 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1194
1195 /* Iterate over all objfiles in the order that makes the most sense
1196    for the architecture to make global symbol searches.
1197
1198    CB is a callback function where OBJFILE is the objfile to be searched,
1199    and CB_DATA a pointer to user-defined data (the same data that is passed
1200    when calling this gdbarch method).  The iteration stops if this function
1201    returns nonzero.
1202
1203    CB_DATA is a pointer to some user-defined data to be passed to
1204    the callback.
1205
1206    If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1207    inspected when the symbol search was requested. */
1208
1209 typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype) (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
1210 extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
1211 extern void set_gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, gdbarch_iterate_over_objfiles_in_search_order_ftype *iterate_over_objfiles_in_search_order);
1212
1213 /* Definition for an unknown syscall, used basically in error-cases.  */
1214 #define UNKNOWN_SYSCALL (-1)
1215
1216 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1217
1218
1219 /* Mechanism for co-ordinating the selection of a specific
1220    architecture.
1221
1222    GDB targets (*-tdep.c) can register an interest in a specific
1223    architecture.  Other GDB components can register a need to maintain
1224    per-architecture data.
1225
1226    The mechanisms below ensures that there is only a loose connection
1227    between the set-architecture command and the various GDB
1228    components.  Each component can independently register their need
1229    to maintain architecture specific data with gdbarch.
1230
1231    Pragmatics:
1232
1233    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1234    didn't scale.
1235
1236    The more traditional mega-struct containing architecture specific
1237    data for all the various GDB components was also considered.  Since
1238    GDB is built from a variable number of (fairly independent)
1239    components it was determined that the global aproach was not
1240    applicable.  */
1241
1242
1243 /* Register a new architectural family with GDB.
1244
1245    Register support for the specified ARCHITECTURE with GDB.  When
1246    gdbarch determines that the specified architecture has been
1247    selected, the corresponding INIT function is called.
1248
1249    --
1250
1251    The INIT function takes two parameters: INFO which contains the
1252    information available to gdbarch about the (possibly new)
1253    architecture; ARCHES which is a list of the previously created
1254    ``struct gdbarch'' for this architecture.
1255
1256    The INFO parameter is, as far as possible, be pre-initialized with
1257    information obtained from INFO.ABFD or the global defaults.
1258
1259    The ARCHES parameter is a linked list (sorted most recently used)
1260    of all the previously created architures for this architecture
1261    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1262    values from the previously selected architecture for this
1263    architecture family.
1264
1265    The INIT function shall return any of: NULL - indicating that it
1266    doesn't recognize the selected architecture; an existing ``struct
1267    gdbarch'' from the ARCHES list - indicating that the new
1268    architecture is just a synonym for an earlier architecture (see
1269    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1270    - that describes the selected architecture (see gdbarch_alloc()).
1271
1272    The DUMP_TDEP function shall print out all target specific values.
1273    Care should be taken to ensure that the function works in both the
1274    multi-arch and non- multi-arch cases.  */
1275
1276 struct gdbarch_list
1277 {
1278   struct gdbarch *gdbarch;
1279   struct gdbarch_list *next;
1280 };
1281
1282 struct gdbarch_info
1283 {
1284   /* Use default: NULL (ZERO).  */
1285   const struct bfd_arch_info *bfd_arch_info;
1286
1287   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1288   int byte_order;
1289
1290   int byte_order_for_code;
1291
1292   /* Use default: NULL (ZERO).  */
1293   bfd *abfd;
1294
1295   /* Use default: NULL (ZERO).  */
1296   struct gdbarch_tdep_info *tdep_info;
1297
1298   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1299   enum gdb_osabi osabi;
1300
1301   /* Use default: NULL (ZERO).  */
1302   const struct target_desc *target_desc;
1303 };
1304
1305 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1306 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1307
1308 /* DEPRECATED - use gdbarch_register() */
1309 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1310
1311 extern void gdbarch_register (enum bfd_architecture architecture,
1312                               gdbarch_init_ftype *,
1313                               gdbarch_dump_tdep_ftype *);
1314
1315
1316 /* Return a freshly allocated, NULL terminated, array of the valid
1317    architecture names.  Since architectures are registered during the
1318    _initialize phase this function only returns useful information
1319    once initialization has been completed.  */
1320
1321 extern const char **gdbarch_printable_names (void);
1322
1323
1324 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1325    matches the information provided by INFO.  */
1326
1327 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1328
1329
1330 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1331    basic initialization using values obtained from the INFO and TDEP
1332    parameters.  set_gdbarch_*() functions are called to complete the
1333    initialization of the object.  */
1334
1335 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1336
1337
1338 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1339    It is assumed that the caller freeds the ``struct
1340    gdbarch_tdep''.  */
1341
1342 extern void gdbarch_free (struct gdbarch *);
1343
1344
1345 /* Helper function.  Allocate memory from the ``struct gdbarch''
1346    obstack.  The memory is freed when the corresponding architecture
1347    is also freed.  */
1348
1349 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1350 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1351 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1352
1353
1354 /* Helper function.  Force an update of the current architecture.
1355
1356    The actual architecture selected is determined by INFO, ``(gdb) set
1357    architecture'' et.al., the existing architecture and BFD's default
1358    architecture.  INFO should be initialized to zero and then selected
1359    fields should be updated.
1360
1361    Returns non-zero if the update succeeds.  */
1362
1363 extern int gdbarch_update_p (struct gdbarch_info info);
1364
1365
1366 /* Helper function.  Find an architecture matching info.
1367
1368    INFO should be initialized using gdbarch_info_init, relevant fields
1369    set, and then finished using gdbarch_info_fill.
1370
1371    Returns the corresponding architecture, or NULL if no matching
1372    architecture was found.  */
1373
1374 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1375
1376
1377 /* Helper function.  Set the global "target_gdbarch" to "gdbarch".
1378
1379    FIXME: kettenis/20031124: Of the functions that follow, only
1380    gdbarch_from_bfd is supposed to survive.  The others will
1381    dissappear since in the future GDB will (hopefully) be truly
1382    multi-arch.  However, for now we're still stuck with the concept of
1383    a single active architecture.  */
1384
1385 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1386
1387
1388 /* Register per-architecture data-pointer.
1389
1390    Reserve space for a per-architecture data-pointer.  An identifier
1391    for the reserved data-pointer is returned.  That identifer should
1392    be saved in a local static variable.
1393
1394    Memory for the per-architecture data shall be allocated using
1395    gdbarch_obstack_zalloc.  That memory will be deleted when the
1396    corresponding architecture object is deleted.
1397
1398    When a previously created architecture is re-selected, the
1399    per-architecture data-pointer for that previous architecture is
1400    restored.  INIT() is not re-called.
1401
1402    Multiple registrarants for any architecture are allowed (and
1403    strongly encouraged).  */
1404
1405 struct gdbarch_data;
1406
1407 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1408 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1409 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1410 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1411 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1412                                          struct gdbarch_data *data,
1413                                          void *pointer);
1414
1415 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1416
1417
1418 /* Set the dynamic target-system-dependent parameters (architecture,
1419    byte-order, ...) using information found in the BFD.  */
1420
1421 extern void set_gdbarch_from_file (bfd *);
1422
1423
1424 /* Initialize the current architecture to the "first" one we find on
1425    our list.  */
1426
1427 extern void initialize_current_architecture (void);
1428
1429 /* gdbarch trace variable */
1430 extern unsigned int gdbarch_debug;
1431
1432 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1433
1434 #endif