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    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 2 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, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23    Boston, MA 02110-1301, USA.  */
  24
  25 /* This file was created with the aid of ``gdbarch.sh''.
  26
  27    The Bourne shell script ``gdbarch.sh'' creates the files
  28    ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
  29    against the existing ``gdbarch.[hc]''.  Any differences found
  30    being reported.
  31
  32    If editing this file, please also run gdbarch.sh and merge any
  33    changes into that script. Conversely, when making sweeping changes
  34    to this file, modifying gdbarch.sh and using its output may prove
  35    easier. */
  36
  37 #ifndef GDBARCH_H
  38 #define GDBARCH_H
  39
  40 struct floatformat;
  41 struct ui_file;
  42 struct frame_info;
  43 struct value;
  44 struct objfile;
  45 struct obj_section;
  46 struct minimal_symbol;
  47 struct regcache;
  48 struct reggroup;
  49 struct regset;
  50 struct disassemble_info;
  51 struct target_ops;
  52 struct obstack;
  53 struct bp_target_info;
  54 struct target_desc;
  55
  56 extern struct gdbarch *current_gdbarch;
  57
  58
  59 /* The following are pre-initialized by GDBARCH. */
  60
  61 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
  62 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
  63
  64 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
  65 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
  66
  67 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
  68 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
  69
  70 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
  71 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
  72
  73
  74 /* The following are initialized by the target dependent code. */
  75
  76 /* Number of bits in a char or unsigned char for the target machine.
  77    Just like CHAR_BIT in <limits.h> but describes the target machine.
  78    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
  79
  80    Number of bits in a short or unsigned short for the target machine. */
  81
  82 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
  83 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
  84
  85 /* Number of bits in an int or unsigned int for the target machine. */
  86
  87 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
  88 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
  89
  90 /* Number of bits in a long or unsigned long for the target machine. */
  91
  92 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
  93 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
  94
  95 /* Number of bits in a long long or unsigned long long for the target
  96    machine. */
  97
  98 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
  99 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 100
 101 /* The ABI default bit-size and format for "float", "double", and "long
 102    double".  These bit/format pairs should eventually be combined into
 103    a single object.  For the moment, just initialize them as a pair.
 104    Each format describes both the big and little endian layouts (if
 105    useful). */
 106
 107 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 108 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 109
 110 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 111 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 112
 113 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 114 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 115
 116 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 117 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 118
 119 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 120 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 121
 122 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 123 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 124
 125 /* For most targets, a pointer on the target and its representation as an
 126    address in GDB have the same size and "look the same".  For such a
 127    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 128    / addr_bit will be set from it.
 129
 130    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 131    also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
 132    as well.
 133
 134    ptr_bit is the size of a pointer on the target */
 135
 136 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 137 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 138
 139 /* addr_bit is the size of a target address as represented in gdb */
 140
 141 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 142 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 143
 144 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 145
 146 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 147 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 148
 149 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 150
 151 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 152 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 153 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 154
 155 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 156
 157 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 158 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 159 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 160
 161 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 162    whole scheme for dealing with "frames" and "frame pointers" needs a
 163    serious shakedown. */
 164
 165 typedef void (gdbarch_virtual_frame_pointer_ftype) (CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 166 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 167 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 168
 169 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 170
 171 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 172 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 173 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 174
 175 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 176
 177 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 178 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 179 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 180
 181 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 182 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 183
 184 /* This macro gives the number of pseudo-registers that live in the
 185    register namespace but do not get fetched or stored on the target.
 186    These pseudo-registers may be aliases for other registers,
 187    combinations of other registers, or they may be computed by GDB. */
 188
 189 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 190 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 191
 192 /* GDB's standard (or well known) register numbers.  These can map onto
 193    a real register or a pseudo (computed) register or not be defined at
 194    all (-1).
 195    gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
 196
 197 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 198 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 199
 200 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 201 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 202
 203 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 204 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 205
 206 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 207 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 208
 209 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 210
 211 typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
 212 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 213 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 214
 215 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 216
 217 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
 218 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 219 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 220
 221 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 222
 223 typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
 224 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 225 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 226
 227 /* Convert from an sdb register number to an internal gdb register number. */
 228
 229 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
 230 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 231 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 232
 233 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
 234 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 235 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 236
 237 typedef const char * (gdbarch_register_name_ftype) (int regnr);
 238 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 239 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 240
 241 /* Return the type of a register specified by the architecture.  Only
 242    the register cache should call this function directly; others should
 243    use "register_type". */
 244
 245 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 246
 247 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 248 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 249 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 250
 251 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 252
 253 extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch);
 254
 255 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info);
 256 extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info);
 257 extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id);
 258
 259 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 260    DEPRECATED_FP_REGNUM. */
 261
 262 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 263 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 264 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FP_REGNUM)
 265 #error "Non multi-arch definition of DEPRECATED_FP_REGNUM"
 266 #endif
 267 #if !defined (DEPRECATED_FP_REGNUM)
 268 #define DEPRECATED_FP_REGNUM (gdbarch_deprecated_fp_regnum (current_gdbarch))
 269 #endif
 270
 271 /* See gdbint.texinfo.  See infcall.c. */
 272
 273 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 274
 275 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);
 276 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);
 277 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 278
 279 /* DEPRECATED_REGISTER_SIZE can be deleted. */
 280
 281 extern int gdbarch_deprecated_register_size (struct gdbarch *gdbarch);
 282 extern void set_gdbarch_deprecated_register_size (struct gdbarch *gdbarch, int deprecated_register_size);
 283 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REGISTER_SIZE)
 284 #error "Non multi-arch definition of DEPRECATED_REGISTER_SIZE"
 285 #endif
 286 #if !defined (DEPRECATED_REGISTER_SIZE)
 287 #define DEPRECATED_REGISTER_SIZE (gdbarch_deprecated_register_size (current_gdbarch))
 288 #endif
 289
 290 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 291 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 292
 293 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 294
 295 typedef CORE_ADDR (gdbarch_push_dummy_code_ftype) (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache);
 296 extern CORE_ADDR gdbarch_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache);
 297 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 298
 299 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 300 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 301 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 302
 303 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 304
 305 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 306 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 307 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 308
 309 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 310
 311 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 312 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 313 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 314
 315 /* MAP a GDB RAW register number onto a simulator register number.  See
 316    also include/...-sim.h. */
 317
 318 typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr);
 319 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 320 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 321
 322 typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum);
 323 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 324 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 325
 326 typedef int (gdbarch_cannot_store_register_ftype) (int regnum);
 327 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 328 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 329
 330 /* setjmp/longjmp support. */
 331
 332 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 333
 334 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 335 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 336 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 337
 338 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 339 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 340 #if !defined (GDB_TM_FILE) && defined (BELIEVE_PCC_PROMOTION)
 341 #error "Non multi-arch definition of BELIEVE_PCC_PROMOTION"
 342 #endif
 343 #if !defined (BELIEVE_PCC_PROMOTION)
 344 #define BELIEVE_PCC_PROMOTION (gdbarch_believe_pcc_promotion (current_gdbarch))
 345 #endif
 346
 347 typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type);
 348 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 349 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 350
 351 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 352 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 353 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 354
 355 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 356 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 357 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 358
 359 /* Construct a value representing the contents of register REGNUM in
 360    frame FRAME, interpreted as type TYPE.  The routine needs to
 361    allocate and return a struct value with all value attributes
 362    (but not the value contents) filled in. */
 363
 364 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 365 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 366 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 367
 368 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
 369 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 370 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 371
 372 typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr);
 373 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 374 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 375
 376 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 377
 378 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 379 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 380 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 381
 382 /* It has been suggested that this, well actually its predecessor,
 383    should take the type/value of the function to be called and not the
 384    return type.  This is left as an exercise for the reader.
 385    NOTE: cagney/2004-06-13: The function stack.c:return_command uses
 386    the predicate with default hack to avoid calling STORE_RETURN_VALUE
 387    (via legacy_return_value), when a small struct is involved. */
 388
 389 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 390
 391 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 392 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 393 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 394
 395 /* The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
 396    DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
 397    DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
 398    RETURN_VALUE. */
 399
 400 typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 401 extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 402 extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
 403 #if !defined (GDB_TM_FILE) && defined (EXTRACT_RETURN_VALUE)
 404 #error "Non multi-arch definition of EXTRACT_RETURN_VALUE"
 405 #endif
 406 #if !defined (EXTRACT_RETURN_VALUE)
 407 #define EXTRACT_RETURN_VALUE(type, regcache, valbuf) (gdbarch_extract_return_value (current_gdbarch, type, regcache, valbuf))
 408 #endif
 409
 410 typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 411 extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 412 extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value);
 413 #if !defined (GDB_TM_FILE) && defined (STORE_RETURN_VALUE)
 414 #error "Non multi-arch definition of STORE_RETURN_VALUE"
 415 #endif
 416 #if !defined (STORE_RETURN_VALUE)
 417 #define STORE_RETURN_VALUE(type, regcache, valbuf) (gdbarch_store_return_value (current_gdbarch, type, regcache, valbuf))
 418 #endif
 419
 420 typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
 421 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
 422 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention);
 423 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_USE_STRUCT_CONVENTION)
 424 #error "Non multi-arch definition of DEPRECATED_USE_STRUCT_CONVENTION"
 425 #endif
 426 #if !defined (DEPRECATED_USE_STRUCT_CONVENTION)
 427 #define DEPRECATED_USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_deprecated_use_struct_convention (current_gdbarch, gcc_p, value_type))
 428 #endif
 429
 430 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip);
 431 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 432 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 433
 434 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 435 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 436 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 437
 438 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr);
 439 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 440 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 441
 442 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 443
 444 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 445 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 446 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 447
 448 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 449 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 450 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 451
 452 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 453 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 454 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 455
 456 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 457 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 458
 459 /* A function can be addressed by either it's "pointer" (possibly a
 460    descriptor address) or "entry point" (first executable instruction).
 461    The method "convert_from_func_ptr_addr" converting the former to the
 462    latter.  DEPRECATED_FUNCTION_START_OFFSET is being used to implement
 463    a simplified subset of that functionality - the function's address
 464    corresponds to the "function pointer" and the function's start
 465    corresponds to the "function entry point" - and hence is redundant. */
 466
 467 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 468 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 469 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FUNCTION_START_OFFSET)
 470 #error "Non multi-arch definition of DEPRECATED_FUNCTION_START_OFFSET"
 471 #endif
 472 #if !defined (DEPRECATED_FUNCTION_START_OFFSET)
 473 #define DEPRECATED_FUNCTION_START_OFFSET (gdbarch_deprecated_function_start_offset (current_gdbarch))
 474 #endif
 475
 476 /* Return the remote protocol register number associated with this
 477    register.  Normally the identity mapping. */
 478
 479 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 480 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 481 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 482
 483 /* Fetch the target specific address used to represent a load module. */
 484
 485 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 486
 487 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 488 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 489 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 490
 491 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 492 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 493
 494 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 495
 496 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 497 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 498 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 499
 500 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 501
 502 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 503 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 504 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 505
 506 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 507    frame-base.  Enable frame-base before frame-unwind. */
 508
 509 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 510
 511 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 512 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 513 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 514
 515 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 516
 517 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 518 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 519 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 520
 521 /* deprecated_reg_struct_has_addr has been replaced by
 522    stabs_argument_has_addr. */
 523
 524 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch);
 525
 526 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
 527 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
 528 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr);
 529
 530 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 531 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 532 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 533
 534 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 535 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 536
 537 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 538 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 539 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 540
 541 /* On some machines there are bits in addresses which are not really
 542    part of the address, but are used by the kernel, the hardware, etc.
 543    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 544    we get a "real" address such as one would find in a symbol table.
 545    This is used only for addresses of instructions, and even then I'm
 546    not sure it's used in all contexts.  It exists to deal with there
 547    being a few stray bits in the PC which would mislead us, not as some
 548    sort of generic thing to handle alignment or segmentation (it's
 549    possible it should be in TARGET_READ_PC instead). */
 550
 551 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr);
 552 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 553 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 554
 555 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 556    gdbarch_addr_bits_remove. */
 557
 558 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr);
 559 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 560 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 561
 562 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 563    indicates if the target needs software single step.  An ISA method to
 564    implement it.
 565
 566    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 567    breakpoints using the breakpoint system instead of blatting memory directly
 568    (as with rs6000).
 569
 570    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 571    target can single step.  If not, then implement single step using breakpoints.
 572
 573    A return value of 1 means that the software_single_step breakpoints
 574    were inserted; 0 means they were not. */
 575
 576 #if defined (SOFTWARE_SINGLE_STEP)
 577 /* Legacy for systems yet to multi-arch SOFTWARE_SINGLE_STEP */
 578 #if !defined (SOFTWARE_SINGLE_STEP_P)
 579 #define SOFTWARE_SINGLE_STEP_P() (1)
 580 #endif
 581 #endif
 582
 583 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 584 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP_P)
 585 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 586 #endif
 587 #if !defined (SOFTWARE_SINGLE_STEP_P)
 588 #define SOFTWARE_SINGLE_STEP_P() (gdbarch_software_single_step_p (current_gdbarch))
 589 #endif
 590
 591 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 592 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 593 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 594 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP)
 595 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 596 #endif
 597 #if !defined (SOFTWARE_SINGLE_STEP)
 598 #define SOFTWARE_SINGLE_STEP(frame) (gdbarch_software_single_step (current_gdbarch, frame))
 599 #endif
 600
 601 /* Return non-zero if the processor is executing a delay slot and a
 602    further single-step is needed before the instruction finishes. */
 603
 604 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 605
 606 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 607 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 608 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 609
 610 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 611    disassembler.  Perhaps objdump can handle it? */
 612
 613 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 614 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 615 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 616 #if !defined (GDB_TM_FILE) && defined (TARGET_PRINT_INSN)
 617 #error "Non multi-arch definition of TARGET_PRINT_INSN"
 618 #endif
 619 #if !defined (TARGET_PRINT_INSN)
 620 #define TARGET_PRINT_INSN(vma, info) (gdbarch_print_insn (current_gdbarch, vma, info))
 621 #endif
 622
 623 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 624 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 625 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 626
 627 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 628    evaluates non-zero, this is the address where the debugger will place
 629    a step-resume breakpoint to get us past the dynamic linker. */
 630
 631 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 632 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 633 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 634
 635 /* Some systems also have trampoline code for returning from shared libs. */
 636
 637 typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name);
 638 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 639 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 640
 641 /* A target might have problems with watchpoints as soon as the stack
 642    frame of the current function has been destroyed.  This mostly happens
 643    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 644    is defined to return a non-zero value if either the given addr is one
 645    instruction after the stack destroying instruction up to the trailing
 646    return instruction or if we can figure out that the stack frame has
 647    already been invalidated regardless of the value of addr.  Targets
 648    which don't suffer from that problem could just let this functionality
 649    untouched. */
 650
 651 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 652 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 653 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 654
 655 /* Given a vector of command-line arguments, return a newly allocated
 656    string which, when passed to the create_inferior function, will be
 657    parsed (on Unix systems, by the shell) to yield the same vector.
 658    This function should call error() if the argument vector is not
 659    representable for this target or if this target does not support
 660    command-line arguments.
 661    ARGC is the number of elements in the vector.
 662    ARGV is an array of strings, one per argument. */
 663
 664 typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv);
 665 extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv);
 666 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments);
 667
 668 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 669 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 670 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 671
 672 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 673 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 674 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 675
 676 extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch);
 677 extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc);
 678
 679 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 680 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 681
 682 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 683 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 684
 685 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 686
 687 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 688 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 689 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 690
 691 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 692
 693 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 694 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 695 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);
 696
 697 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 698
 699 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 700 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 701 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);
 702
 703 /* Is a register in a group */
 704
 705 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 706 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 707 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 708
 709 /* Fetch the pointer to the ith function argument. */
 710
 711 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 712
 713 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 714 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 715 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 716
 717 /* Return the appropriate register set for a core file section with
 718    name SECT_NAME and size SECT_SIZE. */
 719
 720 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 721
 722 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 723 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 724 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 725
 726 /* If the elements of C++ vtables are in-place function descriptors rather
 727    than normal function pointers (which may point to code or a descriptor),
 728    set this to one. */
 729
 730 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 731 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 732
 733 /* Set if the least significant bit of the delta is used instead of the least
 734    significant bit of the pfn for pointers to virtual member functions. */
 735
 736 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 737 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 738
 739 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 740
 741 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 742
 743 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 744 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 745 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 746
 747 /* Refresh overlay mapped state for section OSECT. */
 748
 749 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 750
 751 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 752 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 753 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 754
 755 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 756
 757
 758 /* Mechanism for co-ordinating the selection of a specific
 759    architecture.
 760
 761    GDB targets (*-tdep.c) can register an interest in a specific
 762    architecture.  Other GDB components can register a need to maintain
 763    per-architecture data.
 764
 765    The mechanisms below ensures that there is only a loose connection
 766    between the set-architecture command and the various GDB
 767    components.  Each component can independently register their need
 768    to maintain architecture specific data with gdbarch.
 769
 770    Pragmatics:
 771
 772    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 773    didn't scale.
 774
 775    The more traditional mega-struct containing architecture specific
 776    data for all the various GDB components was also considered.  Since
 777    GDB is built from a variable number of (fairly independent)
 778    components it was determined that the global aproach was not
 779    applicable. */
 780
 781
 782 /* Register a new architectural family with GDB.
 783
 784    Register support for the specified ARCHITECTURE with GDB.  When
 785    gdbarch determines that the specified architecture has been
 786    selected, the corresponding INIT function is called.
 787
 788    --
 789
 790    The INIT function takes two parameters: INFO which contains the
 791    information available to gdbarch about the (possibly new)
 792    architecture; ARCHES which is a list of the previously created
 793    ``struct gdbarch'' for this architecture.
 794
 795    The INFO parameter is, as far as possible, be pre-initialized with
 796    information obtained from INFO.ABFD or the global defaults.
 797
 798    The ARCHES parameter is a linked list (sorted most recently used)
 799    of all the previously created architures for this architecture
 800    family.  The (possibly NULL) ARCHES->gdbarch can used to access
 801    values from the previously selected architecture for this
 802    architecture family.  The global ``current_gdbarch'' shall not be
 803    used.
 804
 805    The INIT function shall return any of: NULL - indicating that it
 806    doesn't recognize the selected architecture; an existing ``struct
 807    gdbarch'' from the ARCHES list - indicating that the new
 808    architecture is just a synonym for an earlier architecture (see
 809    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
 810    - that describes the selected architecture (see gdbarch_alloc()).
 811
 812    The DUMP_TDEP function shall print out all target specific values.
 813    Care should be taken to ensure that the function works in both the
 814    multi-arch and non- multi-arch cases. */
 815
 816 struct gdbarch_list
 817 {
 818   struct gdbarch *gdbarch;
 819   struct gdbarch_list *next;
 820 };
 821
 822 struct gdbarch_info
 823 {
 824   /* Use default: NULL (ZERO). */
 825   const struct bfd_arch_info *bfd_arch_info;
 826
 827   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
 828   int byte_order;
 829
 830   /* Use default: NULL (ZERO). */
 831   bfd *abfd;
 832
 833   /* Use default: NULL (ZERO). */
 834   struct gdbarch_tdep_info *tdep_info;
 835
 836   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
 837   enum gdb_osabi osabi;
 838
 839   /* Use default: NULL (ZERO).  */
 840   const struct target_desc *target_desc;
 841 };
 842
 843 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 844 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 845
 846 /* DEPRECATED - use gdbarch_register() */
 847 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 848
 849 extern void gdbarch_register (enum bfd_architecture architecture,
 850                               gdbarch_init_ftype *,
 851                               gdbarch_dump_tdep_ftype *);
 852
 853
 854 /* Return a freshly allocated, NULL terminated, array of the valid
 855    architecture names.  Since architectures are registered during the
 856    _initialize phase this function only returns useful information
 857    once initialization has been completed. */
 858
 859 extern const char **gdbarch_printable_names (void);
 860
 861
 862 /* Helper function.  Search the list of ARCHES for a GDBARCH that
 863    matches the information provided by INFO. */
 864
 865 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
 866
 867
 868 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
 869    basic initialization using values obtained from the INFO and TDEP
 870    parameters.  set_gdbarch_*() functions are called to complete the
 871    initialization of the object. */
 872
 873 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
 874
 875
 876 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
 877    It is assumed that the caller freeds the ``struct
 878    gdbarch_tdep''. */
 879
 880 extern void gdbarch_free (struct gdbarch *);
 881
 882
 883 /* Helper function.  Allocate memory from the ``struct gdbarch''
 884    obstack.  The memory is freed when the corresponding architecture
 885    is also freed.  */
 886
 887 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
 888 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
 889 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
 890
 891
 892 /* Helper function. Force an update of the current architecture.
 893
 894    The actual architecture selected is determined by INFO, ``(gdb) set
 895    architecture'' et.al., the existing architecture and BFD's default
 896    architecture.  INFO should be initialized to zero and then selected
 897    fields should be updated.
 898
 899    Returns non-zero if the update succeeds */
 900
 901 extern int gdbarch_update_p (struct gdbarch_info info);
 902
 903
 904 /* Helper function.  Find an architecture matching info.
 905
 906    INFO should be initialized using gdbarch_info_init, relevant fields
 907    set, and then finished using gdbarch_info_fill.
 908
 909    Returns the corresponding architecture, or NULL if no matching
 910    architecture was found.  "current_gdbarch" is not updated.  */
 911
 912 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
 913
 914
 915 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
 916
 917    FIXME: kettenis/20031124: Of the functions that follow, only
 918    gdbarch_from_bfd is supposed to survive.  The others will
 919    dissappear since in the future GDB will (hopefully) be truly
 920    multi-arch.  However, for now we're still stuck with the concept of
 921    a single active architecture.  */
 922
 923 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
 924
 925
 926 /* Register per-architecture data-pointer.
 927
 928    Reserve space for a per-architecture data-pointer.  An identifier
 929    for the reserved data-pointer is returned.  That identifer should
 930    be saved in a local static variable.
 931
 932    Memory for the per-architecture data shall be allocated using
 933    gdbarch_obstack_zalloc.  That memory will be deleted when the
 934    corresponding architecture object is deleted.
 935
 936    When a previously created architecture is re-selected, the
 937    per-architecture data-pointer for that previous architecture is
 938    restored.  INIT() is not re-called.
 939
 940    Multiple registrarants for any architecture are allowed (and
 941    strongly encouraged).  */
 942
 943 struct gdbarch_data;
 944
 945 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
 946 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
 947 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
 948 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
 949 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
 950                                          struct gdbarch_data *data,
 951                                          void *pointer);
 952
 953 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
 954
 955
 956
 957 /* Register per-architecture memory region.
 958
 959    Provide a memory-region swap mechanism.  Per-architecture memory
 960    region are created.  These memory regions are swapped whenever the
 961    architecture is changed.  For a new architecture, the memory region
 962    is initialized with zero (0) and the INIT function is called.
 963
 964    Memory regions are swapped / initialized in the order that they are
 965    registered.  NULL DATA and/or INIT values can be specified.
 966
 967    New code should use gdbarch_data_register_*(). */
 968
 969 typedef void (gdbarch_swap_ftype) (void);
 970 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
 971 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
 972
 973
 974
 975 /* Set the dynamic target-system-dependent parameters (architecture,
 976    byte-order, ...) using information found in the BFD */
 977
 978 extern void set_gdbarch_from_file (bfd *);
 979
 980
 981 /* Initialize the current architecture to the "first" one we find on
 982    our list.  */
 983
 984 extern void initialize_current_architecture (void);
 985
 986 /* gdbarch trace variable */
 987 extern int gdbarch_debug;
 988
 989 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
 990
 991 #endif