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 /* Number of bits in a BFD_VMA for the target object file format. */
 145
 146 extern int gdbarch_bfd_vma_bit (struct gdbarch *gdbarch);
 147 extern void set_gdbarch_bfd_vma_bit (struct gdbarch *gdbarch, int bfd_vma_bit);
 148
 149 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 150
 151 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 152 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 153
 154 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 155
 156 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 157 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 158 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 159
 160 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 161
 162 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 163 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 164 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 165
 166 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 167    whole scheme for dealing with "frames" and "frame pointers" needs a
 168    serious shakedown. */
 169
 170 typedef void (gdbarch_virtual_frame_pointer_ftype) (CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 171 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 172 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 173
 174 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 175
 176 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 177 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 178 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 179
 180 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 181
 182 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 183 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 184 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 185
 186 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 187 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 188
 189 /* This macro gives the number of pseudo-registers that live in the
 190    register namespace but do not get fetched or stored on the target.
 191    These pseudo-registers may be aliases for other registers,
 192    combinations of other registers, or they may be computed by GDB. */
 193
 194 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 195 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 196
 197 /* GDB's standard (or well known) register numbers.  These can map onto
 198    a real register or a pseudo (computed) register or not be defined at
 199    all (-1).
 200    SP_REGNUM will hopefully be replaced by UNWIND_SP. */
 201
 202 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 203 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 204 #if !defined (GDB_TM_FILE) && defined (SP_REGNUM)
 205 #error "Non multi-arch definition of SP_REGNUM"
 206 #endif
 207 #if !defined (SP_REGNUM)
 208 #define SP_REGNUM (gdbarch_sp_regnum (current_gdbarch))
 209 #endif
 210
 211 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 212 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 213 #if !defined (GDB_TM_FILE) && defined (PC_REGNUM)
 214 #error "Non multi-arch definition of PC_REGNUM"
 215 #endif
 216 #if !defined (PC_REGNUM)
 217 #define PC_REGNUM (gdbarch_pc_regnum (current_gdbarch))
 218 #endif
 219
 220 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 221 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 222 #if !defined (GDB_TM_FILE) && defined (PS_REGNUM)
 223 #error "Non multi-arch definition of PS_REGNUM"
 224 #endif
 225 #if !defined (PS_REGNUM)
 226 #define PS_REGNUM (gdbarch_ps_regnum (current_gdbarch))
 227 #endif
 228
 229 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 230 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 231 #if !defined (GDB_TM_FILE) && defined (FP0_REGNUM)
 232 #error "Non multi-arch definition of FP0_REGNUM"
 233 #endif
 234 #if !defined (FP0_REGNUM)
 235 #define FP0_REGNUM (gdbarch_fp0_regnum (current_gdbarch))
 236 #endif
 237
 238 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 239
 240 typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
 241 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 242 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 243
 244 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 245
 246 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
 247 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 248 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 249
 250 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 251
 252 typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
 253 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 254 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 255
 256 /* Convert from an sdb register number to an internal gdb register number. */
 257
 258 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
 259 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 260 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 261
 262 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
 263 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 264 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 265
 266 typedef const char * (gdbarch_register_name_ftype) (int regnr);
 267 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 268 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 269
 270 /* Return the type of a register specified by the architecture.  Only
 271    the register cache should call this function directly; others should
 272    use "register_type". */
 273
 274 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 275
 276 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 277 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 278 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 279
 280 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 281
 282 extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch);
 283
 284 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info);
 285 extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info);
 286 extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id);
 287
 288 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 289    DEPRECATED_FP_REGNUM. */
 290
 291 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 292 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 293 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FP_REGNUM)
 294 #error "Non multi-arch definition of DEPRECATED_FP_REGNUM"
 295 #endif
 296 #if !defined (DEPRECATED_FP_REGNUM)
 297 #define DEPRECATED_FP_REGNUM (gdbarch_deprecated_fp_regnum (current_gdbarch))
 298 #endif
 299
 300 /* See gdbint.texinfo.  See infcall.c. */
 301
 302 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 303
 304 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);
 305 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);
 306 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 307
 308 /* DEPRECATED_REGISTER_SIZE can be deleted. */
 309
 310 extern int gdbarch_deprecated_register_size (struct gdbarch *gdbarch);
 311 extern void set_gdbarch_deprecated_register_size (struct gdbarch *gdbarch, int deprecated_register_size);
 312 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REGISTER_SIZE)
 313 #error "Non multi-arch definition of DEPRECATED_REGISTER_SIZE"
 314 #endif
 315 #if !defined (DEPRECATED_REGISTER_SIZE)
 316 #define DEPRECATED_REGISTER_SIZE (gdbarch_deprecated_register_size (current_gdbarch))
 317 #endif
 318
 319 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 320 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 321
 322 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 323
 324 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);
 325 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);
 326 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 327
 328 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 329 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 330 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 331
 332 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 333
 334 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 335 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 336 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 337
 338 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 339
 340 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 341 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 342 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 343
 344 /* MAP a GDB RAW register number onto a simulator register number.  See
 345    also include/...-sim.h. */
 346
 347 typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr);
 348 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 349 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 350
 351 typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum);
 352 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 353 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 354
 355 typedef int (gdbarch_cannot_store_register_ftype) (int regnum);
 356 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 357 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 358
 359 /* setjmp/longjmp support. */
 360
 361 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 362
 363 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 364 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 365 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 366
 367 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 368 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 369 #if !defined (GDB_TM_FILE) && defined (BELIEVE_PCC_PROMOTION)
 370 #error "Non multi-arch definition of BELIEVE_PCC_PROMOTION"
 371 #endif
 372 #if !defined (BELIEVE_PCC_PROMOTION)
 373 #define BELIEVE_PCC_PROMOTION (gdbarch_believe_pcc_promotion (current_gdbarch))
 374 #endif
 375
 376 typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type);
 377 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 378 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 379
 380 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 381 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 382 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 383
 384 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 385 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 386 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 387
 388 /* Construct a value representing the contents of register REGNUM in
 389    frame FRAME, interpreted as type TYPE.  The routine needs to
 390    allocate and return a struct value with all value attributes
 391    (but not the value contents) filled in. */
 392
 393 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 394 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 395 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 396
 397 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
 398 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 399 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 400
 401 typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr);
 402 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 403 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 404
 405 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 406
 407 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 408 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 409 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 410
 411 /* It has been suggested that this, well actually its predecessor,
 412    should take the type/value of the function to be called and not the
 413    return type.  This is left as an exercise for the reader.
 414    NOTE: cagney/2004-06-13: The function stack.c:return_command uses
 415    the predicate with default hack to avoid calling STORE_RETURN_VALUE
 416    (via legacy_return_value), when a small struct is involved. */
 417
 418 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 419
 420 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);
 421 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 422 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 423
 424 /* The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
 425    DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
 426    DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
 427    RETURN_VALUE. */
 428
 429 typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 430 extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 431 extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
 432 #if !defined (GDB_TM_FILE) && defined (EXTRACT_RETURN_VALUE)
 433 #error "Non multi-arch definition of EXTRACT_RETURN_VALUE"
 434 #endif
 435 #if !defined (EXTRACT_RETURN_VALUE)
 436 #define EXTRACT_RETURN_VALUE(type, regcache, valbuf) (gdbarch_extract_return_value (current_gdbarch, type, regcache, valbuf))
 437 #endif
 438
 439 typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 440 extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 441 extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value);
 442 #if !defined (GDB_TM_FILE) && defined (STORE_RETURN_VALUE)
 443 #error "Non multi-arch definition of STORE_RETURN_VALUE"
 444 #endif
 445 #if !defined (STORE_RETURN_VALUE)
 446 #define STORE_RETURN_VALUE(type, regcache, valbuf) (gdbarch_store_return_value (current_gdbarch, type, regcache, valbuf))
 447 #endif
 448
 449 typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
 450 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
 451 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention);
 452 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_USE_STRUCT_CONVENTION)
 453 #error "Non multi-arch definition of DEPRECATED_USE_STRUCT_CONVENTION"
 454 #endif
 455 #if !defined (DEPRECATED_USE_STRUCT_CONVENTION)
 456 #define DEPRECATED_USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_deprecated_use_struct_convention (current_gdbarch, gcc_p, value_type))
 457 #endif
 458
 459 /* As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 460    ABI suitable for the implementation of a robust extract
 461    struct-convention return-value address method (the sparc saves the
 462    address in the callers frame).  All the other cases so far examined,
 463    the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 464    erreneous - the code was incorrectly assuming that the return-value
 465    address, stored in a register, was preserved across the entire
 466    function call.
 467    For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 468    the ABIs that are still to be analyzed - perhaps this should simply
 469    be deleted.  The commented out extract_returned_value_address method
 470    is provided as a starting point for the 32-bit SPARC.  It, or
 471    something like it, along with changes to both infcmd.c and stack.c
 472    will be needed for that case to work.  NB: It is passed the callers
 473    frame since it is only after the callee has returned that this
 474    function is used.
 475   M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame */
 476
 477 #if defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 478 /* Legacy for systems yet to multi-arch DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS */
 479 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 480 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (1)
 481 #endif
 482 #endif
 483
 484 extern int gdbarch_deprecated_extract_struct_value_address_p (struct gdbarch *gdbarch);
 485 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 486 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 487 #endif
 488 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 489 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (gdbarch_deprecated_extract_struct_value_address_p (current_gdbarch))
 490 #endif
 491
 492 typedef CORE_ADDR (gdbarch_deprecated_extract_struct_value_address_ftype) (struct regcache *regcache);
 493 extern CORE_ADDR gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, struct regcache *regcache);
 494 extern void set_gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, gdbarch_deprecated_extract_struct_value_address_ftype *deprecated_extract_struct_value_address);
 495 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 496 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 497 #endif
 498 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 499 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regcache) (gdbarch_deprecated_extract_struct_value_address (current_gdbarch, regcache))
 500 #endif
 501
 502 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip);
 503 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 504 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 505
 506 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 507 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 508 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 509
 510 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr);
 511 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 512 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 513
 514 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 515
 516 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 517 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 518 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 519
 520 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 521 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 522 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 523
 524 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 525 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 526 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 527
 528 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 529 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 530
 531 /* A function can be addressed by either it's "pointer" (possibly a
 532    descriptor address) or "entry point" (first executable instruction).
 533    The method "convert_from_func_ptr_addr" converting the former to the
 534    latter.  DEPRECATED_FUNCTION_START_OFFSET is being used to implement
 535    a simplified subset of that functionality - the function's address
 536    corresponds to the "function pointer" and the function's start
 537    corresponds to the "function entry point" - and hence is redundant. */
 538
 539 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 540 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 541 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FUNCTION_START_OFFSET)
 542 #error "Non multi-arch definition of DEPRECATED_FUNCTION_START_OFFSET"
 543 #endif
 544 #if !defined (DEPRECATED_FUNCTION_START_OFFSET)
 545 #define DEPRECATED_FUNCTION_START_OFFSET (gdbarch_deprecated_function_start_offset (current_gdbarch))
 546 #endif
 547
 548 /* Return the remote protocol register number associated with this
 549    register.  Normally the identity mapping. */
 550
 551 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 552 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 553 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 554
 555 /* Fetch the target specific address used to represent a load module. */
 556
 557 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 558
 559 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 560 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 561 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 562
 563 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 564 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 565
 566 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 567
 568 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 569 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 570 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 571
 572 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 573
 574 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 575 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 576 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 577
 578 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 579    frame-base.  Enable frame-base before frame-unwind. */
 580
 581 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 582
 583 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 584 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 585 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 586
 587 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 588
 589 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 590 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 591 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 592
 593 /* DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 594    stabs_argument_has_addr. */
 595
 596 #if defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 597 /* Legacy for systems yet to multi-arch DEPRECATED_REG_STRUCT_HAS_ADDR */
 598 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 599 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (1)
 600 #endif
 601 #endif
 602
 603 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch);
 604 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 605 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 606 #endif
 607 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 608 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (gdbarch_deprecated_reg_struct_has_addr_p (current_gdbarch))
 609 #endif
 610
 611 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
 612 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
 613 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr);
 614 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 615 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 616 #endif
 617 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 618 #define DEPRECATED_REG_STRUCT_HAS_ADDR(gcc_p, type) (gdbarch_deprecated_reg_struct_has_addr (current_gdbarch, gcc_p, type))
 619 #endif
 620
 621 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 622 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 623 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 624
 625 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 626 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 627
 628 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 629 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 630 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 631
 632 /* On some machines there are bits in addresses which are not really
 633    part of the address, but are used by the kernel, the hardware, etc.
 634    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 635    we get a "real" address such as one would find in a symbol table.
 636    This is used only for addresses of instructions, and even then I'm
 637    not sure it's used in all contexts.  It exists to deal with there
 638    being a few stray bits in the PC which would mislead us, not as some
 639    sort of generic thing to handle alignment or segmentation (it's
 640    possible it should be in TARGET_READ_PC instead). */
 641
 642 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr);
 643 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 644 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 645
 646 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 647    gdbarch_addr_bits_remove. */
 648
 649 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr);
 650 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 651 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 652
 653 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 654    indicates if the target needs software single step.  An ISA method to
 655    implement it.
 656
 657    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 658    breakpoints using the breakpoint system instead of blatting memory directly
 659    (as with rs6000).
 660
 661    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 662    target can single step.  If not, then implement single step using breakpoints.
 663
 664    A return value of 1 means that the software_single_step breakpoints
 665    were inserted; 0 means they were not. */
 666
 667 #if defined (SOFTWARE_SINGLE_STEP)
 668 /* Legacy for systems yet to multi-arch SOFTWARE_SINGLE_STEP */
 669 #if !defined (SOFTWARE_SINGLE_STEP_P)
 670 #define SOFTWARE_SINGLE_STEP_P() (1)
 671 #endif
 672 #endif
 673
 674 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 675 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP_P)
 676 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 677 #endif
 678 #if !defined (SOFTWARE_SINGLE_STEP_P)
 679 #define SOFTWARE_SINGLE_STEP_P() (gdbarch_software_single_step_p (current_gdbarch))
 680 #endif
 681
 682 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 683 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 684 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 685 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP)
 686 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 687 #endif
 688 #if !defined (SOFTWARE_SINGLE_STEP)
 689 #define SOFTWARE_SINGLE_STEP(frame) (gdbarch_software_single_step (current_gdbarch, frame))
 690 #endif
 691
 692 /* Return non-zero if the processor is executing a delay slot and a
 693    further single-step is needed before the instruction finishes. */
 694
 695 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 696
 697 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 698 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 699 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 700
 701 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 702    disassembler.  Perhaps objdump can handle it? */
 703
 704 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 705 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 706 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 707 #if !defined (GDB_TM_FILE) && defined (TARGET_PRINT_INSN)
 708 #error "Non multi-arch definition of TARGET_PRINT_INSN"
 709 #endif
 710 #if !defined (TARGET_PRINT_INSN)
 711 #define TARGET_PRINT_INSN(vma, info) (gdbarch_print_insn (current_gdbarch, vma, info))
 712 #endif
 713
 714 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 715 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 716 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 717
 718 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 719    evaluates non-zero, this is the address where the debugger will place
 720    a step-resume breakpoint to get us past the dynamic linker. */
 721
 722 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 723 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 724 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 725
 726 /* Some systems also have trampoline code for returning from shared libs. */
 727
 728 typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name);
 729 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 730 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 731
 732 /* A target might have problems with watchpoints as soon as the stack
 733    frame of the current function has been destroyed.  This mostly happens
 734    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 735    is defined to return a non-zero value if either the given addr is one
 736    instruction after the stack destroying instruction up to the trailing
 737    return instruction or if we can figure out that the stack frame has
 738    already been invalidated regardless of the value of addr.  Targets
 739    which don't suffer from that problem could just let this functionality
 740    untouched. */
 741
 742 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 743 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 744 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 745
 746 /* Given a vector of command-line arguments, return a newly allocated
 747    string which, when passed to the create_inferior function, will be
 748    parsed (on Unix systems, by the shell) to yield the same vector.
 749    This function should call error() if the argument vector is not
 750    representable for this target or if this target does not support
 751    command-line arguments.
 752    ARGC is the number of elements in the vector.
 753    ARGV is an array of strings, one per argument. */
 754
 755 typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv);
 756 extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv);
 757 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments);
 758
 759 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 760 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 761 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 762
 763 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 764 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 765 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 766
 767 extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch);
 768 extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc);
 769
 770 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 771 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 772
 773 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 774 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 775
 776 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 777
 778 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 779 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 780 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 781
 782 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 783
 784 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 785 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 786 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);
 787
 788 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 789
 790 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 791 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 792 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);
 793
 794 /* Is a register in a group */
 795
 796 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 797 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 798 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 799
 800 /* Fetch the pointer to the ith function argument. */
 801
 802 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 803
 804 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 805 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 806 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 807
 808 /* Return the appropriate register set for a core file section with
 809    name SECT_NAME and size SECT_SIZE. */
 810
 811 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 812
 813 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 814 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 815 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 816
 817 /* If the elements of C++ vtables are in-place function descriptors rather
 818    than normal function pointers (which may point to code or a descriptor),
 819    set this to one. */
 820
 821 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 822 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 823
 824 /* Set if the least significant bit of the delta is used instead of the least
 825    significant bit of the pfn for pointers to virtual member functions. */
 826
 827 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 828 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 829
 830 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 831
 832 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 833
 834 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 835 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 836 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 837
 838 /* Refresh overlay mapped state for section OSECT. */
 839
 840 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 841
 842 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 843 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 844 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 845
 846 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 847
 848
 849 /* Mechanism for co-ordinating the selection of a specific
 850    architecture.
 851
 852    GDB targets (*-tdep.c) can register an interest in a specific
 853    architecture.  Other GDB components can register a need to maintain
 854    per-architecture data.
 855
 856    The mechanisms below ensures that there is only a loose connection
 857    between the set-architecture command and the various GDB
 858    components.  Each component can independently register their need
 859    to maintain architecture specific data with gdbarch.
 860
 861    Pragmatics:
 862
 863    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 864    didn't scale.
 865
 866    The more traditional mega-struct containing architecture specific
 867    data for all the various GDB components was also considered.  Since
 868    GDB is built from a variable number of (fairly independent)
 869    components it was determined that the global aproach was not
 870    applicable. */
 871
 872
 873 /* Register a new architectural family with GDB.
 874
 875    Register support for the specified ARCHITECTURE with GDB.  When
 876    gdbarch determines that the specified architecture has been
 877    selected, the corresponding INIT function is called.
 878
 879    --
 880
 881    The INIT function takes two parameters: INFO which contains the
 882    information available to gdbarch about the (possibly new)
 883    architecture; ARCHES which is a list of the previously created
 884    ``struct gdbarch'' for this architecture.
 885
 886    The INFO parameter is, as far as possible, be pre-initialized with
 887    information obtained from INFO.ABFD or the global defaults.
 888
 889    The ARCHES parameter is a linked list (sorted most recently used)
 890    of all the previously created architures for this architecture
 891    family.  The (possibly NULL) ARCHES->gdbarch can used to access
 892    values from the previously selected architecture for this
 893    architecture family.  The global ``current_gdbarch'' shall not be
 894    used.
 895
 896    The INIT function shall return any of: NULL - indicating that it
 897    doesn't recognize the selected architecture; an existing ``struct
 898    gdbarch'' from the ARCHES list - indicating that the new
 899    architecture is just a synonym for an earlier architecture (see
 900    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
 901    - that describes the selected architecture (see gdbarch_alloc()).
 902
 903    The DUMP_TDEP function shall print out all target specific values.
 904    Care should be taken to ensure that the function works in both the
 905    multi-arch and non- multi-arch cases. */
 906
 907 struct gdbarch_list
 908 {
 909   struct gdbarch *gdbarch;
 910   struct gdbarch_list *next;
 911 };
 912
 913 struct gdbarch_info
 914 {
 915   /* Use default: NULL (ZERO). */
 916   const struct bfd_arch_info *bfd_arch_info;
 917
 918   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
 919   int byte_order;
 920
 921   /* Use default: NULL (ZERO). */
 922   bfd *abfd;
 923
 924   /* Use default: NULL (ZERO). */
 925   struct gdbarch_tdep_info *tdep_info;
 926
 927   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
 928   enum gdb_osabi osabi;
 929
 930   /* Use default: NULL (ZERO).  */
 931   const struct target_desc *target_desc;
 932 };
 933
 934 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 935 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 936
 937 /* DEPRECATED - use gdbarch_register() */
 938 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 939
 940 extern void gdbarch_register (enum bfd_architecture architecture,
 941                               gdbarch_init_ftype *,
 942                               gdbarch_dump_tdep_ftype *);
 943
 944
 945 /* Return a freshly allocated, NULL terminated, array of the valid
 946    architecture names.  Since architectures are registered during the
 947    _initialize phase this function only returns useful information
 948    once initialization has been completed. */
 949
 950 extern const char **gdbarch_printable_names (void);
 951
 952
 953 /* Helper function.  Search the list of ARCHES for a GDBARCH that
 954    matches the information provided by INFO. */
 955
 956 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
 957
 958
 959 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
 960    basic initialization using values obtained from the INFO and TDEP
 961    parameters.  set_gdbarch_*() functions are called to complete the
 962    initialization of the object. */
 963
 964 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
 965
 966
 967 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
 968    It is assumed that the caller freeds the ``struct
 969    gdbarch_tdep''. */
 970
 971 extern void gdbarch_free (struct gdbarch *);
 972
 973
 974 /* Helper function.  Allocate memory from the ``struct gdbarch''
 975    obstack.  The memory is freed when the corresponding architecture
 976    is also freed.  */
 977
 978 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
 979 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
 980 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
 981
 982
 983 /* Helper function. Force an update of the current architecture.
 984
 985    The actual architecture selected is determined by INFO, ``(gdb) set
 986    architecture'' et.al., the existing architecture and BFD's default
 987    architecture.  INFO should be initialized to zero and then selected
 988    fields should be updated.
 989
 990    Returns non-zero if the update succeeds */
 991
 992 extern int gdbarch_update_p (struct gdbarch_info info);
 993
 994
 995 /* Helper function.  Find an architecture matching info.
 996
 997    INFO should be initialized using gdbarch_info_init, relevant fields
 998    set, and then finished using gdbarch_info_fill.
 999
1000    Returns the corresponding architecture, or NULL if no matching
1001    architecture was found.  "current_gdbarch" is not updated.  */
1002
1003 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1004
1005
1006 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1007
1008    FIXME: kettenis/20031124: Of the functions that follow, only
1009    gdbarch_from_bfd is supposed to survive.  The others will
1010    dissappear since in the future GDB will (hopefully) be truly
1011    multi-arch.  However, for now we're still stuck with the concept of
1012    a single active architecture.  */
1013
1014 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1015
1016
1017 /* Register per-architecture data-pointer.
1018
1019    Reserve space for a per-architecture data-pointer.  An identifier
1020    for the reserved data-pointer is returned.  That identifer should
1021    be saved in a local static variable.
1022
1023    Memory for the per-architecture data shall be allocated using
1024    gdbarch_obstack_zalloc.  That memory will be deleted when the
1025    corresponding architecture object is deleted.
1026
1027    When a previously created architecture is re-selected, the
1028    per-architecture data-pointer for that previous architecture is
1029    restored.  INIT() is not re-called.
1030
1031    Multiple registrarants for any architecture are allowed (and
1032    strongly encouraged).  */
1033
1034 struct gdbarch_data;
1035
1036 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1037 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1038 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1039 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1040 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1041                                          struct gdbarch_data *data,
1042                                          void *pointer);
1043
1044 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1045
1046
1047
1048 /* Register per-architecture memory region.
1049
1050    Provide a memory-region swap mechanism.  Per-architecture memory
1051    region are created.  These memory regions are swapped whenever the
1052    architecture is changed.  For a new architecture, the memory region
1053    is initialized with zero (0) and the INIT function is called.
1054
1055    Memory regions are swapped / initialized in the order that they are
1056    registered.  NULL DATA and/or INIT values can be specified.
1057
1058    New code should use gdbarch_data_register_*(). */
1059
1060 typedef void (gdbarch_swap_ftype) (void);
1061 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1062 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1063
1064
1065
1066 /* Set the dynamic target-system-dependent parameters (architecture,
1067    byte-order, ...) using information found in the BFD */
1068
1069 extern void set_gdbarch_from_file (bfd *);
1070
1071
1072 /* Initialize the current architecture to the "first" one we find on
1073    our list.  */
1074
1075 extern void initialize_current_architecture (void);
1076
1077 /* gdbarch trace variable */
1078 extern int gdbarch_debug;
1079
1080 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1081
1082 #endif