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    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 #if !defined (GDB_TM_FILE) && defined (SP_REGNUM)
 200 #error "Non multi-arch definition of SP_REGNUM"
 201 #endif
 202 #if !defined (SP_REGNUM)
 203 #define SP_REGNUM (gdbarch_sp_regnum (current_gdbarch))
 204 #endif
 205
 206 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 207 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 208 #if !defined (GDB_TM_FILE) && defined (PC_REGNUM)
 209 #error "Non multi-arch definition of PC_REGNUM"
 210 #endif
 211 #if !defined (PC_REGNUM)
 212 #define PC_REGNUM (gdbarch_pc_regnum (current_gdbarch))
 213 #endif
 214
 215 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 216 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 217 #if !defined (GDB_TM_FILE) && defined (PS_REGNUM)
 218 #error "Non multi-arch definition of PS_REGNUM"
 219 #endif
 220 #if !defined (PS_REGNUM)
 221 #define PS_REGNUM (gdbarch_ps_regnum (current_gdbarch))
 222 #endif
 223
 224 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 225 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 226 #if !defined (GDB_TM_FILE) && defined (FP0_REGNUM)
 227 #error "Non multi-arch definition of FP0_REGNUM"
 228 #endif
 229 #if !defined (FP0_REGNUM)
 230 #define FP0_REGNUM (gdbarch_fp0_regnum (current_gdbarch))
 231 #endif
 232
 233 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 234
 235 typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
 236 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 237 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 238
 239 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 240
 241 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
 242 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 243 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 244
 245 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 246
 247 typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
 248 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 249 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 250
 251 /* Convert from an sdb register number to an internal gdb register number. */
 252
 253 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
 254 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 255 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 256
 257 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
 258 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 259 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 260
 261 typedef const char * (gdbarch_register_name_ftype) (int regnr);
 262 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 263 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 264
 265 /* Return the type of a register specified by the architecture.  Only
 266    the register cache should call this function directly; others should
 267    use "register_type". */
 268
 269 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 270
 271 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 272 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 273 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 274
 275 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 276
 277 extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch);
 278
 279 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info);
 280 extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info);
 281 extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id);
 282
 283 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 284    DEPRECATED_FP_REGNUM. */
 285
 286 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 287 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 288 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FP_REGNUM)
 289 #error "Non multi-arch definition of DEPRECATED_FP_REGNUM"
 290 #endif
 291 #if !defined (DEPRECATED_FP_REGNUM)
 292 #define DEPRECATED_FP_REGNUM (gdbarch_deprecated_fp_regnum (current_gdbarch))
 293 #endif
 294
 295 /* See gdbint.texinfo.  See infcall.c. */
 296
 297 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 298
 299 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);
 300 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);
 301 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 302
 303 /* DEPRECATED_REGISTER_SIZE can be deleted. */
 304
 305 extern int gdbarch_deprecated_register_size (struct gdbarch *gdbarch);
 306 extern void set_gdbarch_deprecated_register_size (struct gdbarch *gdbarch, int deprecated_register_size);
 307 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REGISTER_SIZE)
 308 #error "Non multi-arch definition of DEPRECATED_REGISTER_SIZE"
 309 #endif
 310 #if !defined (DEPRECATED_REGISTER_SIZE)
 311 #define DEPRECATED_REGISTER_SIZE (gdbarch_deprecated_register_size (current_gdbarch))
 312 #endif
 313
 314 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 315 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 316
 317 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 318
 319 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);
 320 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);
 321 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 322
 323 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 324 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 325 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 326
 327 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 328
 329 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 330 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 331 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 332
 333 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 334
 335 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 336 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 337 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 338
 339 /* MAP a GDB RAW register number onto a simulator register number.  See
 340    also include/...-sim.h. */
 341
 342 typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr);
 343 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 344 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 345
 346 typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum);
 347 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 348 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 349
 350 typedef int (gdbarch_cannot_store_register_ftype) (int regnum);
 351 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 352 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 353
 354 /* setjmp/longjmp support. */
 355
 356 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 357
 358 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 359 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 360 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 361
 362 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 363 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 364 #if !defined (GDB_TM_FILE) && defined (BELIEVE_PCC_PROMOTION)
 365 #error "Non multi-arch definition of BELIEVE_PCC_PROMOTION"
 366 #endif
 367 #if !defined (BELIEVE_PCC_PROMOTION)
 368 #define BELIEVE_PCC_PROMOTION (gdbarch_believe_pcc_promotion (current_gdbarch))
 369 #endif
 370
 371 typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type);
 372 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 373 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 374
 375 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 376 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 377 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 378
 379 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 380 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 381 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 382
 383 /* Construct a value representing the contents of register REGNUM in
 384    frame FRAME, interpreted as type TYPE.  The routine needs to
 385    allocate and return a struct value with all value attributes
 386    (but not the value contents) filled in. */
 387
 388 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 389 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 390 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 391
 392 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
 393 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 394 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 395
 396 typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr);
 397 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 398 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 399
 400 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 401
 402 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 403 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 404 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 405
 406 /* It has been suggested that this, well actually its predecessor,
 407    should take the type/value of the function to be called and not the
 408    return type.  This is left as an exercise for the reader.
 409    NOTE: cagney/2004-06-13: The function stack.c:return_command uses
 410    the predicate with default hack to avoid calling STORE_RETURN_VALUE
 411    (via legacy_return_value), when a small struct is involved. */
 412
 413 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 414
 415 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);
 416 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 417 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 418
 419 /* The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
 420    DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
 421    DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
 422    RETURN_VALUE. */
 423
 424 typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 425 extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 426 extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
 427 #if !defined (GDB_TM_FILE) && defined (EXTRACT_RETURN_VALUE)
 428 #error "Non multi-arch definition of EXTRACT_RETURN_VALUE"
 429 #endif
 430 #if !defined (EXTRACT_RETURN_VALUE)
 431 #define EXTRACT_RETURN_VALUE(type, regcache, valbuf) (gdbarch_extract_return_value (current_gdbarch, type, regcache, valbuf))
 432 #endif
 433
 434 typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 435 extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 436 extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value);
 437 #if !defined (GDB_TM_FILE) && defined (STORE_RETURN_VALUE)
 438 #error "Non multi-arch definition of STORE_RETURN_VALUE"
 439 #endif
 440 #if !defined (STORE_RETURN_VALUE)
 441 #define STORE_RETURN_VALUE(type, regcache, valbuf) (gdbarch_store_return_value (current_gdbarch, type, regcache, valbuf))
 442 #endif
 443
 444 typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
 445 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
 446 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention);
 447 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_USE_STRUCT_CONVENTION)
 448 #error "Non multi-arch definition of DEPRECATED_USE_STRUCT_CONVENTION"
 449 #endif
 450 #if !defined (DEPRECATED_USE_STRUCT_CONVENTION)
 451 #define DEPRECATED_USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_deprecated_use_struct_convention (current_gdbarch, gcc_p, value_type))
 452 #endif
 453
 454 /* As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 455    ABI suitable for the implementation of a robust extract
 456    struct-convention return-value address method (the sparc saves the
 457    address in the callers frame).  All the other cases so far examined,
 458    the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 459    erreneous - the code was incorrectly assuming that the return-value
 460    address, stored in a register, was preserved across the entire
 461    function call.
 462    For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 463    the ABIs that are still to be analyzed - perhaps this should simply
 464    be deleted.  The commented out extract_returned_value_address method
 465    is provided as a starting point for the 32-bit SPARC.  It, or
 466    something like it, along with changes to both infcmd.c and stack.c
 467    will be needed for that case to work.  NB: It is passed the callers
 468    frame since it is only after the callee has returned that this
 469    function is used.
 470   M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame */
 471
 472 #if defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 473 /* Legacy for systems yet to multi-arch DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS */
 474 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 475 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (1)
 476 #endif
 477 #endif
 478
 479 extern int gdbarch_deprecated_extract_struct_value_address_p (struct gdbarch *gdbarch);
 480 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 481 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 482 #endif
 483 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 484 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (gdbarch_deprecated_extract_struct_value_address_p (current_gdbarch))
 485 #endif
 486
 487 typedef CORE_ADDR (gdbarch_deprecated_extract_struct_value_address_ftype) (struct regcache *regcache);
 488 extern CORE_ADDR gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, struct regcache *regcache);
 489 extern void set_gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, gdbarch_deprecated_extract_struct_value_address_ftype *deprecated_extract_struct_value_address);
 490 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 491 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 492 #endif
 493 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 494 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regcache) (gdbarch_deprecated_extract_struct_value_address (current_gdbarch, regcache))
 495 #endif
 496
 497 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip);
 498 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 499 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 500
 501 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 502 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 503 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 504
 505 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr);
 506 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 507 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 508
 509 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 510
 511 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 512 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 513 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 514
 515 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 516 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 517 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 518
 519 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 520 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 521 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 522
 523 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 524 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 525
 526 /* A function can be addressed by either it's "pointer" (possibly a
 527    descriptor address) or "entry point" (first executable instruction).
 528    The method "convert_from_func_ptr_addr" converting the former to the
 529    latter.  DEPRECATED_FUNCTION_START_OFFSET is being used to implement
 530    a simplified subset of that functionality - the function's address
 531    corresponds to the "function pointer" and the function's start
 532    corresponds to the "function entry point" - and hence is redundant. */
 533
 534 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 535 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 536 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FUNCTION_START_OFFSET)
 537 #error "Non multi-arch definition of DEPRECATED_FUNCTION_START_OFFSET"
 538 #endif
 539 #if !defined (DEPRECATED_FUNCTION_START_OFFSET)
 540 #define DEPRECATED_FUNCTION_START_OFFSET (gdbarch_deprecated_function_start_offset (current_gdbarch))
 541 #endif
 542
 543 /* Return the remote protocol register number associated with this
 544    register.  Normally the identity mapping. */
 545
 546 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 547 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 548 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 549
 550 /* Fetch the target specific address used to represent a load module. */
 551
 552 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 553
 554 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 555 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 556 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 557
 558 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 559 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 560
 561 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 562
 563 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 564 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 565 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 566
 567 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 568
 569 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 570 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 571 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 572
 573 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 574    frame-base.  Enable frame-base before frame-unwind. */
 575
 576 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 577
 578 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 579 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 580 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 581
 582 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 583
 584 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 585 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 586 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 587
 588 /* DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 589    stabs_argument_has_addr. */
 590
 591 #if defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 592 /* Legacy for systems yet to multi-arch DEPRECATED_REG_STRUCT_HAS_ADDR */
 593 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 594 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (1)
 595 #endif
 596 #endif
 597
 598 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch);
 599 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 600 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 601 #endif
 602 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 603 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (gdbarch_deprecated_reg_struct_has_addr_p (current_gdbarch))
 604 #endif
 605
 606 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
 607 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
 608 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr);
 609 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 610 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 611 #endif
 612 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 613 #define DEPRECATED_REG_STRUCT_HAS_ADDR(gcc_p, type) (gdbarch_deprecated_reg_struct_has_addr (current_gdbarch, gcc_p, type))
 614 #endif
 615
 616 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 617 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 618 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 619
 620 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 621 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 622
 623 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 624 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 625 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 626
 627 /* On some machines there are bits in addresses which are not really
 628    part of the address, but are used by the kernel, the hardware, etc.
 629    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 630    we get a "real" address such as one would find in a symbol table.
 631    This is used only for addresses of instructions, and even then I'm
 632    not sure it's used in all contexts.  It exists to deal with there
 633    being a few stray bits in the PC which would mislead us, not as some
 634    sort of generic thing to handle alignment or segmentation (it's
 635    possible it should be in TARGET_READ_PC instead). */
 636
 637 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr);
 638 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 639 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 640
 641 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 642    gdbarch_addr_bits_remove. */
 643
 644 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr);
 645 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 646 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 647
 648 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 649    indicates if the target needs software single step.  An ISA method to
 650    implement it.
 651
 652    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 653    breakpoints using the breakpoint system instead of blatting memory directly
 654    (as with rs6000).
 655
 656    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 657    target can single step.  If not, then implement single step using breakpoints.
 658
 659    A return value of 1 means that the software_single_step breakpoints
 660    were inserted; 0 means they were not. */
 661
 662 #if defined (SOFTWARE_SINGLE_STEP)
 663 /* Legacy for systems yet to multi-arch SOFTWARE_SINGLE_STEP */
 664 #if !defined (SOFTWARE_SINGLE_STEP_P)
 665 #define SOFTWARE_SINGLE_STEP_P() (1)
 666 #endif
 667 #endif
 668
 669 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 670 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP_P)
 671 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 672 #endif
 673 #if !defined (SOFTWARE_SINGLE_STEP_P)
 674 #define SOFTWARE_SINGLE_STEP_P() (gdbarch_software_single_step_p (current_gdbarch))
 675 #endif
 676
 677 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 678 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 679 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 680 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP)
 681 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 682 #endif
 683 #if !defined (SOFTWARE_SINGLE_STEP)
 684 #define SOFTWARE_SINGLE_STEP(frame) (gdbarch_software_single_step (current_gdbarch, frame))
 685 #endif
 686
 687 /* Return non-zero if the processor is executing a delay slot and a
 688    further single-step is needed before the instruction finishes. */
 689
 690 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 691
 692 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 693 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 694 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 695
 696 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 697    disassembler.  Perhaps objdump can handle it? */
 698
 699 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 700 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 701 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 702 #if !defined (GDB_TM_FILE) && defined (TARGET_PRINT_INSN)
 703 #error "Non multi-arch definition of TARGET_PRINT_INSN"
 704 #endif
 705 #if !defined (TARGET_PRINT_INSN)
 706 #define TARGET_PRINT_INSN(vma, info) (gdbarch_print_insn (current_gdbarch, vma, info))
 707 #endif
 708
 709 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 710 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 711 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 712
 713 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 714    evaluates non-zero, this is the address where the debugger will place
 715    a step-resume breakpoint to get us past the dynamic linker. */
 716
 717 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 718 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 719 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 720
 721 /* Some systems also have trampoline code for returning from shared libs. */
 722
 723 typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name);
 724 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 725 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 726
 727 /* A target might have problems with watchpoints as soon as the stack
 728    frame of the current function has been destroyed.  This mostly happens
 729    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 730    is defined to return a non-zero value if either the given addr is one
 731    instruction after the stack destroying instruction up to the trailing
 732    return instruction or if we can figure out that the stack frame has
 733    already been invalidated regardless of the value of addr.  Targets
 734    which don't suffer from that problem could just let this functionality
 735    untouched. */
 736
 737 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 738 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 739 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 740
 741 /* Given a vector of command-line arguments, return a newly allocated
 742    string which, when passed to the create_inferior function, will be
 743    parsed (on Unix systems, by the shell) to yield the same vector.
 744    This function should call error() if the argument vector is not
 745    representable for this target or if this target does not support
 746    command-line arguments.
 747    ARGC is the number of elements in the vector.
 748    ARGV is an array of strings, one per argument. */
 749
 750 typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv);
 751 extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv);
 752 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments);
 753
 754 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 755 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 756 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 757
 758 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 759 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 760 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 761
 762 extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch);
 763 extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc);
 764
 765 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 766 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 767
 768 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 769 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 770
 771 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 772
 773 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 774 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 775 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 776
 777 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 778
 779 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 780 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 781 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);
 782
 783 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 784
 785 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 786 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 787 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);
 788
 789 /* Is a register in a group */
 790
 791 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 792 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 793 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 794
 795 /* Fetch the pointer to the ith function argument. */
 796
 797 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 798
 799 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 800 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 801 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 802
 803 /* Return the appropriate register set for a core file section with
 804    name SECT_NAME and size SECT_SIZE. */
 805
 806 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 807
 808 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 809 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 810 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 811
 812 /* If the elements of C++ vtables are in-place function descriptors rather
 813    than normal function pointers (which may point to code or a descriptor),
 814    set this to one. */
 815
 816 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 817 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 818
 819 /* Set if the least significant bit of the delta is used instead of the least
 820    significant bit of the pfn for pointers to virtual member functions. */
 821
 822 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 823 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 824
 825 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 826
 827 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 828
 829 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 830 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 831 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 832
 833 /* Refresh overlay mapped state for section OSECT. */
 834
 835 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 836
 837 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 838 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 839 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 840
 841 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 842
 843
 844 /* Mechanism for co-ordinating the selection of a specific
 845    architecture.
 846
 847    GDB targets (*-tdep.c) can register an interest in a specific
 848    architecture.  Other GDB components can register a need to maintain
 849    per-architecture data.
 850
 851    The mechanisms below ensures that there is only a loose connection
 852    between the set-architecture command and the various GDB
 853    components.  Each component can independently register their need
 854    to maintain architecture specific data with gdbarch.
 855
 856    Pragmatics:
 857
 858    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 859    didn't scale.
 860
 861    The more traditional mega-struct containing architecture specific
 862    data for all the various GDB components was also considered.  Since
 863    GDB is built from a variable number of (fairly independent)
 864    components it was determined that the global aproach was not
 865    applicable. */
 866
 867
 868 /* Register a new architectural family with GDB.
 869
 870    Register support for the specified ARCHITECTURE with GDB.  When
 871    gdbarch determines that the specified architecture has been
 872    selected, the corresponding INIT function is called.
 873
 874    --
 875
 876    The INIT function takes two parameters: INFO which contains the
 877    information available to gdbarch about the (possibly new)
 878    architecture; ARCHES which is a list of the previously created
 879    ``struct gdbarch'' for this architecture.
 880
 881    The INFO parameter is, as far as possible, be pre-initialized with
 882    information obtained from INFO.ABFD or the global defaults.
 883
 884    The ARCHES parameter is a linked list (sorted most recently used)
 885    of all the previously created architures for this architecture
 886    family.  The (possibly NULL) ARCHES->gdbarch can used to access
 887    values from the previously selected architecture for this
 888    architecture family.  The global ``current_gdbarch'' shall not be
 889    used.
 890
 891    The INIT function shall return any of: NULL - indicating that it
 892    doesn't recognize the selected architecture; an existing ``struct
 893    gdbarch'' from the ARCHES list - indicating that the new
 894    architecture is just a synonym for an earlier architecture (see
 895    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
 896    - that describes the selected architecture (see gdbarch_alloc()).
 897
 898    The DUMP_TDEP function shall print out all target specific values.
 899    Care should be taken to ensure that the function works in both the
 900    multi-arch and non- multi-arch cases. */
 901
 902 struct gdbarch_list
 903 {
 904   struct gdbarch *gdbarch;
 905   struct gdbarch_list *next;
 906 };
 907
 908 struct gdbarch_info
 909 {
 910   /* Use default: NULL (ZERO). */
 911   const struct bfd_arch_info *bfd_arch_info;
 912
 913   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
 914   int byte_order;
 915
 916   /* Use default: NULL (ZERO). */
 917   bfd *abfd;
 918
 919   /* Use default: NULL (ZERO). */
 920   struct gdbarch_tdep_info *tdep_info;
 921
 922   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
 923   enum gdb_osabi osabi;
 924
 925   /* Use default: NULL (ZERO).  */
 926   const struct target_desc *target_desc;
 927 };
 928
 929 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 930 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 931
 932 /* DEPRECATED - use gdbarch_register() */
 933 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 934
 935 extern void gdbarch_register (enum bfd_architecture architecture,
 936                               gdbarch_init_ftype *,
 937                               gdbarch_dump_tdep_ftype *);
 938
 939
 940 /* Return a freshly allocated, NULL terminated, array of the valid
 941    architecture names.  Since architectures are registered during the
 942    _initialize phase this function only returns useful information
 943    once initialization has been completed. */
 944
 945 extern const char **gdbarch_printable_names (void);
 946
 947
 948 /* Helper function.  Search the list of ARCHES for a GDBARCH that
 949    matches the information provided by INFO. */
 950
 951 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
 952
 953
 954 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
 955    basic initialization using values obtained from the INFO and TDEP
 956    parameters.  set_gdbarch_*() functions are called to complete the
 957    initialization of the object. */
 958
 959 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
 960
 961
 962 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
 963    It is assumed that the caller freeds the ``struct
 964    gdbarch_tdep''. */
 965
 966 extern void gdbarch_free (struct gdbarch *);
 967
 968
 969 /* Helper function.  Allocate memory from the ``struct gdbarch''
 970    obstack.  The memory is freed when the corresponding architecture
 971    is also freed.  */
 972
 973 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
 974 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
 975 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
 976
 977
 978 /* Helper function. Force an update of the current architecture.
 979
 980    The actual architecture selected is determined by INFO, ``(gdb) set
 981    architecture'' et.al., the existing architecture and BFD's default
 982    architecture.  INFO should be initialized to zero and then selected
 983    fields should be updated.
 984
 985    Returns non-zero if the update succeeds */
 986
 987 extern int gdbarch_update_p (struct gdbarch_info info);
 988
 989
 990 /* Helper function.  Find an architecture matching info.
 991
 992    INFO should be initialized using gdbarch_info_init, relevant fields
 993    set, and then finished using gdbarch_info_fill.
 994
 995    Returns the corresponding architecture, or NULL if no matching
 996    architecture was found.  "current_gdbarch" is not updated.  */
 997
 998 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
 999
1000
1001 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1002
1003    FIXME: kettenis/20031124: Of the functions that follow, only
1004    gdbarch_from_bfd is supposed to survive.  The others will
1005    dissappear since in the future GDB will (hopefully) be truly
1006    multi-arch.  However, for now we're still stuck with the concept of
1007    a single active architecture.  */
1008
1009 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1010
1011
1012 /* Register per-architecture data-pointer.
1013
1014    Reserve space for a per-architecture data-pointer.  An identifier
1015    for the reserved data-pointer is returned.  That identifer should
1016    be saved in a local static variable.
1017
1018    Memory for the per-architecture data shall be allocated using
1019    gdbarch_obstack_zalloc.  That memory will be deleted when the
1020    corresponding architecture object is deleted.
1021
1022    When a previously created architecture is re-selected, the
1023    per-architecture data-pointer for that previous architecture is
1024    restored.  INIT() is not re-called.
1025
1026    Multiple registrarants for any architecture are allowed (and
1027    strongly encouraged).  */
1028
1029 struct gdbarch_data;
1030
1031 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1032 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1033 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1034 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1035 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1036                                          struct gdbarch_data *data,
1037                                          void *pointer);
1038
1039 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1040
1041
1042
1043 /* Register per-architecture memory region.
1044
1045    Provide a memory-region swap mechanism.  Per-architecture memory
1046    region are created.  These memory regions are swapped whenever the
1047    architecture is changed.  For a new architecture, the memory region
1048    is initialized with zero (0) and the INIT function is called.
1049
1050    Memory regions are swapped / initialized in the order that they are
1051    registered.  NULL DATA and/or INIT values can be specified.
1052
1053    New code should use gdbarch_data_register_*(). */
1054
1055 typedef void (gdbarch_swap_ftype) (void);
1056 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1057 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1058
1059
1060
1061 /* Set the dynamic target-system-dependent parameters (architecture,
1062    byte-order, ...) using information found in the BFD */
1063
1064 extern void set_gdbarch_from_file (bfd *);
1065
1066
1067 /* Initialize the current architecture to the "first" one we find on
1068    our list.  */
1069
1070 extern void initialize_current_architecture (void);
1071
1072 /* gdbarch trace variable */
1073 extern int gdbarch_debug;
1074
1075 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1076
1077 #endif