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 TARGET_ADDR_BIT
 128    / addr_bit will be set from it.
 129
 130    If gdbarch_ptr_bit and TARGET_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 #if !defined (GDB_TM_FILE) && defined (TARGET_ADDR_BIT)
 144 #error "Non multi-arch definition of TARGET_ADDR_BIT"
 145 #endif
 146 #if !defined (TARGET_ADDR_BIT)
 147 #define TARGET_ADDR_BIT (gdbarch_addr_bit (current_gdbarch))
 148 #endif
 149
 150 /* Number of bits in a BFD_VMA for the target object file format. */
 151
 152 extern int gdbarch_bfd_vma_bit (struct gdbarch *gdbarch);
 153 extern void set_gdbarch_bfd_vma_bit (struct gdbarch *gdbarch, int bfd_vma_bit);
 154
 155 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 156
 157 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 158 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 159
 160 #if defined (TARGET_READ_PC)
 161 /* Legacy for systems yet to multi-arch TARGET_READ_PC */
 162 #if !defined (TARGET_READ_PC_P)
 163 #define TARGET_READ_PC_P() (1)
 164 #endif
 165 #endif
 166
 167 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 168 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC_P)
 169 #error "Non multi-arch definition of TARGET_READ_PC"
 170 #endif
 171 #if !defined (TARGET_READ_PC_P)
 172 #define TARGET_READ_PC_P() (gdbarch_read_pc_p (current_gdbarch))
 173 #endif
 174
 175 typedef CORE_ADDR (gdbarch_read_pc_ftype) (ptid_t ptid);
 176 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, ptid_t ptid);
 177 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 178 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC)
 179 #error "Non multi-arch definition of TARGET_READ_PC"
 180 #endif
 181 #if !defined (TARGET_READ_PC)
 182 #define TARGET_READ_PC(ptid) (gdbarch_read_pc (current_gdbarch, ptid))
 183 #endif
 184
 185 typedef void (gdbarch_write_pc_ftype) (CORE_ADDR val, ptid_t ptid);
 186 extern void gdbarch_write_pc (struct gdbarch *gdbarch, CORE_ADDR val, ptid_t ptid);
 187 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 188 #if !defined (GDB_TM_FILE) && defined (TARGET_WRITE_PC)
 189 #error "Non multi-arch definition of TARGET_WRITE_PC"
 190 #endif
 191 #if !defined (TARGET_WRITE_PC)
 192 #define TARGET_WRITE_PC(val, ptid) (gdbarch_write_pc (current_gdbarch, val, ptid))
 193 #endif
 194
 195 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 196    whole scheme for dealing with "frames" and "frame pointers" needs a
 197    serious shakedown. */
 198
 199 typedef void (gdbarch_virtual_frame_pointer_ftype) (CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 200 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 201 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 202
 203 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 204
 205 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 206 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 207 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 208
 209 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 210
 211 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 212 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 213 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 214
 215 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 216 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 217
 218 /* This macro gives the number of pseudo-registers that live in the
 219    register namespace but do not get fetched or stored on the target.
 220    These pseudo-registers may be aliases for other registers,
 221    combinations of other registers, or they may be computed by GDB. */
 222
 223 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 224 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 225
 226 /* GDB's standard (or well known) register numbers.  These can map onto
 227    a real register or a pseudo (computed) register or not be defined at
 228    all (-1).
 229    SP_REGNUM will hopefully be replaced by UNWIND_SP. */
 230
 231 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 232 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 233 #if !defined (GDB_TM_FILE) && defined (SP_REGNUM)
 234 #error "Non multi-arch definition of SP_REGNUM"
 235 #endif
 236 #if !defined (SP_REGNUM)
 237 #define SP_REGNUM (gdbarch_sp_regnum (current_gdbarch))
 238 #endif
 239
 240 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 241 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 242 #if !defined (GDB_TM_FILE) && defined (PC_REGNUM)
 243 #error "Non multi-arch definition of PC_REGNUM"
 244 #endif
 245 #if !defined (PC_REGNUM)
 246 #define PC_REGNUM (gdbarch_pc_regnum (current_gdbarch))
 247 #endif
 248
 249 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 250 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 251 #if !defined (GDB_TM_FILE) && defined (PS_REGNUM)
 252 #error "Non multi-arch definition of PS_REGNUM"
 253 #endif
 254 #if !defined (PS_REGNUM)
 255 #define PS_REGNUM (gdbarch_ps_regnum (current_gdbarch))
 256 #endif
 257
 258 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 259 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 260 #if !defined (GDB_TM_FILE) && defined (FP0_REGNUM)
 261 #error "Non multi-arch definition of FP0_REGNUM"
 262 #endif
 263 #if !defined (FP0_REGNUM)
 264 #define FP0_REGNUM (gdbarch_fp0_regnum (current_gdbarch))
 265 #endif
 266
 267 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 268
 269 typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
 270 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 271 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 272
 273 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 274
 275 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
 276 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 277 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 278
 279 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 280
 281 typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
 282 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 283 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 284
 285 /* Convert from an sdb register number to an internal gdb register number. */
 286
 287 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
 288 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 289 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 290
 291 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
 292 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 293 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 294
 295 typedef const char * (gdbarch_register_name_ftype) (int regnr);
 296 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 297 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 298
 299 /* Return the type of a register specified by the architecture.  Only
 300    the register cache should call this function directly; others should
 301    use "register_type". */
 302
 303 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 304
 305 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 306 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 307 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 308
 309 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 310
 311 extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch);
 312
 313 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info);
 314 extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info);
 315 extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id);
 316
 317 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 318    DEPRECATED_FP_REGNUM. */
 319
 320 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 321 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 322 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FP_REGNUM)
 323 #error "Non multi-arch definition of DEPRECATED_FP_REGNUM"
 324 #endif
 325 #if !defined (DEPRECATED_FP_REGNUM)
 326 #define DEPRECATED_FP_REGNUM (gdbarch_deprecated_fp_regnum (current_gdbarch))
 327 #endif
 328
 329 /* See gdbint.texinfo.  See infcall.c. */
 330
 331 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 332
 333 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);
 334 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);
 335 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 336
 337 /* DEPRECATED_REGISTER_SIZE can be deleted. */
 338
 339 extern int gdbarch_deprecated_register_size (struct gdbarch *gdbarch);
 340 extern void set_gdbarch_deprecated_register_size (struct gdbarch *gdbarch, int deprecated_register_size);
 341 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REGISTER_SIZE)
 342 #error "Non multi-arch definition of DEPRECATED_REGISTER_SIZE"
 343 #endif
 344 #if !defined (DEPRECATED_REGISTER_SIZE)
 345 #define DEPRECATED_REGISTER_SIZE (gdbarch_deprecated_register_size (current_gdbarch))
 346 #endif
 347
 348 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 349 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 350
 351 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 352
 353 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);
 354 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);
 355 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 356
 357 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 358 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 359 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 360
 361 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 362
 363 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 364 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 365 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 366
 367 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 368
 369 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 370 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 371 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 372
 373 /* MAP a GDB RAW register number onto a simulator register number.  See
 374    also include/...-sim.h. */
 375
 376 typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr);
 377 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 378 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 379
 380 typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum);
 381 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 382 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 383
 384 typedef int (gdbarch_cannot_store_register_ftype) (int regnum);
 385 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 386 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 387
 388 /* setjmp/longjmp support. */
 389
 390 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 391
 392 typedef int (gdbarch_get_longjmp_target_ftype) (CORE_ADDR *pc);
 393 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, CORE_ADDR *pc);
 394 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 395
 396 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 397 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 398 #if !defined (GDB_TM_FILE) && defined (BELIEVE_PCC_PROMOTION)
 399 #error "Non multi-arch definition of BELIEVE_PCC_PROMOTION"
 400 #endif
 401 #if !defined (BELIEVE_PCC_PROMOTION)
 402 #define BELIEVE_PCC_PROMOTION (gdbarch_believe_pcc_promotion (current_gdbarch))
 403 #endif
 404
 405 typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type);
 406 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 407 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 408
 409 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 410 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 411 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 412
 413 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 414 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 415 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 416
 417 /* Construct a value representing the contents of register REGNUM in
 418    frame FRAME, interpreted as type TYPE.  The routine needs to
 419    allocate and return a struct value with all value attributes
 420    (but not the value contents) filled in. */
 421
 422 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 423 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 424 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 425
 426 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
 427 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 428 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 429
 430 typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr);
 431 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 432 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 433
 434 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 435
 436 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 437 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 438 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 439
 440 /* It has been suggested that this, well actually its predecessor,
 441    should take the type/value of the function to be called and not the
 442    return type.  This is left as an exercise for the reader.
 443    NOTE: cagney/2004-06-13: The function stack.c:return_command uses
 444    the predicate with default hack to avoid calling STORE_RETURN_VALUE
 445    (via legacy_return_value), when a small struct is involved. */
 446
 447 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 448
 449 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);
 450 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 451 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 452
 453 /* The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
 454    DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
 455    DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
 456    RETURN_VALUE. */
 457
 458 typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 459 extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 460 extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
 461 #if !defined (GDB_TM_FILE) && defined (EXTRACT_RETURN_VALUE)
 462 #error "Non multi-arch definition of EXTRACT_RETURN_VALUE"
 463 #endif
 464 #if !defined (EXTRACT_RETURN_VALUE)
 465 #define EXTRACT_RETURN_VALUE(type, regcache, valbuf) (gdbarch_extract_return_value (current_gdbarch, type, regcache, valbuf))
 466 #endif
 467
 468 typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 469 extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 470 extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value);
 471 #if !defined (GDB_TM_FILE) && defined (STORE_RETURN_VALUE)
 472 #error "Non multi-arch definition of STORE_RETURN_VALUE"
 473 #endif
 474 #if !defined (STORE_RETURN_VALUE)
 475 #define STORE_RETURN_VALUE(type, regcache, valbuf) (gdbarch_store_return_value (current_gdbarch, type, regcache, valbuf))
 476 #endif
 477
 478 typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
 479 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
 480 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention);
 481 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_USE_STRUCT_CONVENTION)
 482 #error "Non multi-arch definition of DEPRECATED_USE_STRUCT_CONVENTION"
 483 #endif
 484 #if !defined (DEPRECATED_USE_STRUCT_CONVENTION)
 485 #define DEPRECATED_USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_deprecated_use_struct_convention (current_gdbarch, gcc_p, value_type))
 486 #endif
 487
 488 /* As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 489    ABI suitable for the implementation of a robust extract
 490    struct-convention return-value address method (the sparc saves the
 491    address in the callers frame).  All the other cases so far examined,
 492    the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 493    erreneous - the code was incorrectly assuming that the return-value
 494    address, stored in a register, was preserved across the entire
 495    function call.
 496    For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 497    the ABIs that are still to be analyzed - perhaps this should simply
 498    be deleted.  The commented out extract_returned_value_address method
 499    is provided as a starting point for the 32-bit SPARC.  It, or
 500    something like it, along with changes to both infcmd.c and stack.c
 501    will be needed for that case to work.  NB: It is passed the callers
 502    frame since it is only after the callee has returned that this
 503    function is used.
 504   M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame */
 505
 506 #if defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 507 /* Legacy for systems yet to multi-arch DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS */
 508 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 509 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (1)
 510 #endif
 511 #endif
 512
 513 extern int gdbarch_deprecated_extract_struct_value_address_p (struct gdbarch *gdbarch);
 514 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 515 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 516 #endif
 517 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 518 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (gdbarch_deprecated_extract_struct_value_address_p (current_gdbarch))
 519 #endif
 520
 521 typedef CORE_ADDR (gdbarch_deprecated_extract_struct_value_address_ftype) (struct regcache *regcache);
 522 extern CORE_ADDR gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, struct regcache *regcache);
 523 extern void set_gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, gdbarch_deprecated_extract_struct_value_address_ftype *deprecated_extract_struct_value_address);
 524 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 525 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 526 #endif
 527 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 528 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regcache) (gdbarch_deprecated_extract_struct_value_address (current_gdbarch, regcache))
 529 #endif
 530
 531 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip);
 532 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 533 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 534
 535 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 536 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 537 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 538
 539 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr);
 540 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 541 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 542
 543 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 544
 545 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 546 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 547 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 548
 549 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 550 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 551 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 552
 553 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 554 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 555 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 556
 557 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 558 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 559
 560 /* A function can be addressed by either it's "pointer" (possibly a
 561    descriptor address) or "entry point" (first executable instruction).
 562    The method "convert_from_func_ptr_addr" converting the former to the
 563    latter.  DEPRECATED_FUNCTION_START_OFFSET is being used to implement
 564    a simplified subset of that functionality - the function's address
 565    corresponds to the "function pointer" and the function's start
 566    corresponds to the "function entry point" - and hence is redundant. */
 567
 568 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 569 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 570 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FUNCTION_START_OFFSET)
 571 #error "Non multi-arch definition of DEPRECATED_FUNCTION_START_OFFSET"
 572 #endif
 573 #if !defined (DEPRECATED_FUNCTION_START_OFFSET)
 574 #define DEPRECATED_FUNCTION_START_OFFSET (gdbarch_deprecated_function_start_offset (current_gdbarch))
 575 #endif
 576
 577 /* Return the remote protocol register number associated with this
 578    register.  Normally the identity mapping. */
 579
 580 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 581 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 582 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 583
 584 /* Fetch the target specific address used to represent a load module. */
 585
 586 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 587
 588 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 589 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 590 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 591
 592 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 593 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 594
 595 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 596
 597 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 598 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 599 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 600
 601 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 602
 603 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 604 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 605 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 606
 607 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 608    frame-base.  Enable frame-base before frame-unwind. */
 609
 610 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 611
 612 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 613 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 614 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 615
 616 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 617
 618 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 619 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 620 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 621
 622 /* DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 623    stabs_argument_has_addr. */
 624
 625 #if defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 626 /* Legacy for systems yet to multi-arch DEPRECATED_REG_STRUCT_HAS_ADDR */
 627 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 628 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (1)
 629 #endif
 630 #endif
 631
 632 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch);
 633 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 634 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 635 #endif
 636 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 637 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (gdbarch_deprecated_reg_struct_has_addr_p (current_gdbarch))
 638 #endif
 639
 640 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
 641 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
 642 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr);
 643 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 644 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 645 #endif
 646 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 647 #define DEPRECATED_REG_STRUCT_HAS_ADDR(gcc_p, type) (gdbarch_deprecated_reg_struct_has_addr (current_gdbarch, gcc_p, type))
 648 #endif
 649
 650 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 651 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 652 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 653
 654 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 655 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 656
 657 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 658 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 659 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 660
 661 /* On some machines there are bits in addresses which are not really
 662    part of the address, but are used by the kernel, the hardware, etc.
 663    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 664    we get a "real" address such as one would find in a symbol table.
 665    This is used only for addresses of instructions, and even then I'm
 666    not sure it's used in all contexts.  It exists to deal with there
 667    being a few stray bits in the PC which would mislead us, not as some
 668    sort of generic thing to handle alignment or segmentation (it's
 669    possible it should be in TARGET_READ_PC instead). */
 670
 671 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr);
 672 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 673 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 674
 675 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 676    gdbarch_addr_bits_remove. */
 677
 678 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr);
 679 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 680 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 681
 682 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 683    indicates if the target needs software single step.  An ISA method to
 684    implement it.
 685
 686    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 687    breakpoints using the breakpoint system instead of blatting memory directly
 688    (as with rs6000).
 689
 690    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 691    target can single step.  If not, then implement single step using breakpoints.
 692
 693    A return value of 1 means that the software_single_step breakpoints
 694    were inserted; 0 means they were not. */
 695
 696 #if defined (SOFTWARE_SINGLE_STEP)
 697 /* Legacy for systems yet to multi-arch SOFTWARE_SINGLE_STEP */
 698 #if !defined (SOFTWARE_SINGLE_STEP_P)
 699 #define SOFTWARE_SINGLE_STEP_P() (1)
 700 #endif
 701 #endif
 702
 703 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 704 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP_P)
 705 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 706 #endif
 707 #if !defined (SOFTWARE_SINGLE_STEP_P)
 708 #define SOFTWARE_SINGLE_STEP_P() (gdbarch_software_single_step_p (current_gdbarch))
 709 #endif
 710
 711 typedef int (gdbarch_software_single_step_ftype) (struct regcache *regcache);
 712 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
 713 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 714 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP)
 715 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 716 #endif
 717 #if !defined (SOFTWARE_SINGLE_STEP)
 718 #define SOFTWARE_SINGLE_STEP(regcache) (gdbarch_software_single_step (current_gdbarch, regcache))
 719 #endif
 720
 721 /* Return non-zero if the processor is executing a delay slot and a
 722    further single-step is needed before the instruction finishes. */
 723
 724 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 725
 726 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 727 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 728 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 729
 730 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 731    disassembler.  Perhaps objdump can handle it? */
 732
 733 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 734 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 735 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 736 #if !defined (GDB_TM_FILE) && defined (TARGET_PRINT_INSN)
 737 #error "Non multi-arch definition of TARGET_PRINT_INSN"
 738 #endif
 739 #if !defined (TARGET_PRINT_INSN)
 740 #define TARGET_PRINT_INSN(vma, info) (gdbarch_print_insn (current_gdbarch, vma, info))
 741 #endif
 742
 743 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (CORE_ADDR pc);
 744 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, CORE_ADDR pc);
 745 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 746
 747 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 748    evaluates non-zero, this is the address where the debugger will place
 749    a step-resume breakpoint to get us past the dynamic linker. */
 750
 751 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 752 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 753 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 754
 755 /* Some systems also have trampoline code for returning from shared libs. */
 756
 757 typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name);
 758 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 759 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 760
 761 /* A target might have problems with watchpoints as soon as the stack
 762    frame of the current function has been destroyed.  This mostly happens
 763    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 764    is defined to return a non-zero value if either the given addr is one
 765    instruction after the stack destroying instruction up to the trailing
 766    return instruction or if we can figure out that the stack frame has
 767    already been invalidated regardless of the value of addr.  Targets
 768    which don't suffer from that problem could just let this functionality
 769    untouched. */
 770
 771 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 772 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 773 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 774
 775 /* Given a vector of command-line arguments, return a newly allocated
 776    string which, when passed to the create_inferior function, will be
 777    parsed (on Unix systems, by the shell) to yield the same vector.
 778    This function should call error() if the argument vector is not
 779    representable for this target or if this target does not support
 780    command-line arguments.
 781    ARGC is the number of elements in the vector.
 782    ARGV is an array of strings, one per argument. */
 783
 784 typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv);
 785 extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv);
 786 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments);
 787
 788 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 789 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 790 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 791
 792 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 793 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 794 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 795
 796 extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch);
 797 extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc);
 798
 799 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 800 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 801
 802 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 803 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 804
 805 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 806
 807 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 808 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 809 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 810
 811 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 812
 813 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 814 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 815 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);
 816
 817 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 818
 819 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 820 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 821 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);
 822
 823 /* Is a register in a group */
 824
 825 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 826 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 827 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 828
 829 /* Fetch the pointer to the ith function argument. */
 830
 831 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 832
 833 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 834 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 835 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 836
 837 /* Return the appropriate register set for a core file section with
 838    name SECT_NAME and size SECT_SIZE. */
 839
 840 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 841
 842 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 843 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 844 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 845
 846 /* If the elements of C++ vtables are in-place function descriptors rather
 847    than normal function pointers (which may point to code or a descriptor),
 848    set this to one. */
 849
 850 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 851 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 852
 853 /* Set if the least significant bit of the delta is used instead of the least
 854    significant bit of the pfn for pointers to virtual member functions. */
 855
 856 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 857 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 858
 859 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 860
 861 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 862
 863 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 864 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 865 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 866
 867 /* Refresh overlay mapped state for section OSECT. */
 868
 869 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 870
 871 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 872 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 873 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 874
 875 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 876
 877
 878 /* Mechanism for co-ordinating the selection of a specific
 879    architecture.
 880
 881    GDB targets (*-tdep.c) can register an interest in a specific
 882    architecture.  Other GDB components can register a need to maintain
 883    per-architecture data.
 884
 885    The mechanisms below ensures that there is only a loose connection
 886    between the set-architecture command and the various GDB
 887    components.  Each component can independently register their need
 888    to maintain architecture specific data with gdbarch.
 889
 890    Pragmatics:
 891
 892    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 893    didn't scale.
 894
 895    The more traditional mega-struct containing architecture specific
 896    data for all the various GDB components was also considered.  Since
 897    GDB is built from a variable number of (fairly independent)
 898    components it was determined that the global aproach was not
 899    applicable. */
 900
 901
 902 /* Register a new architectural family with GDB.
 903
 904    Register support for the specified ARCHITECTURE with GDB.  When
 905    gdbarch determines that the specified architecture has been
 906    selected, the corresponding INIT function is called.
 907
 908    --
 909
 910    The INIT function takes two parameters: INFO which contains the
 911    information available to gdbarch about the (possibly new)
 912    architecture; ARCHES which is a list of the previously created
 913    ``struct gdbarch'' for this architecture.
 914
 915    The INFO parameter is, as far as possible, be pre-initialized with
 916    information obtained from INFO.ABFD or the global defaults.
 917
 918    The ARCHES parameter is a linked list (sorted most recently used)
 919    of all the previously created architures for this architecture
 920    family.  The (possibly NULL) ARCHES->gdbarch can used to access
 921    values from the previously selected architecture for this
 922    architecture family.  The global ``current_gdbarch'' shall not be
 923    used.
 924
 925    The INIT function shall return any of: NULL - indicating that it
 926    doesn't recognize the selected architecture; an existing ``struct
 927    gdbarch'' from the ARCHES list - indicating that the new
 928    architecture is just a synonym for an earlier architecture (see
 929    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
 930    - that describes the selected architecture (see gdbarch_alloc()).
 931
 932    The DUMP_TDEP function shall print out all target specific values.
 933    Care should be taken to ensure that the function works in both the
 934    multi-arch and non- multi-arch cases. */
 935
 936 struct gdbarch_list
 937 {
 938   struct gdbarch *gdbarch;
 939   struct gdbarch_list *next;
 940 };
 941
 942 struct gdbarch_info
 943 {
 944   /* Use default: NULL (ZERO). */
 945   const struct bfd_arch_info *bfd_arch_info;
 946
 947   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
 948   int byte_order;
 949
 950   /* Use default: NULL (ZERO). */
 951   bfd *abfd;
 952
 953   /* Use default: NULL (ZERO). */
 954   struct gdbarch_tdep_info *tdep_info;
 955
 956   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
 957   enum gdb_osabi osabi;
 958
 959   /* Use default: NULL (ZERO).  */
 960   const struct target_desc *target_desc;
 961 };
 962
 963 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 964 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 965
 966 /* DEPRECATED - use gdbarch_register() */
 967 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 968
 969 extern void gdbarch_register (enum bfd_architecture architecture,
 970                               gdbarch_init_ftype *,
 971                               gdbarch_dump_tdep_ftype *);
 972
 973
 974 /* Return a freshly allocated, NULL terminated, array of the valid
 975    architecture names.  Since architectures are registered during the
 976    _initialize phase this function only returns useful information
 977    once initialization has been completed. */
 978
 979 extern const char **gdbarch_printable_names (void);
 980
 981
 982 /* Helper function.  Search the list of ARCHES for a GDBARCH that
 983    matches the information provided by INFO. */
 984
 985 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
 986
 987
 988 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
 989    basic initialization using values obtained from the INFO and TDEP
 990    parameters.  set_gdbarch_*() functions are called to complete the
 991    initialization of the object. */
 992
 993 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
 994
 995
 996 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
 997    It is assumed that the caller freeds the ``struct
 998    gdbarch_tdep''. */
 999
1000 extern void gdbarch_free (struct gdbarch *);
1001
1002
1003 /* Helper function.  Allocate memory from the ``struct gdbarch''
1004    obstack.  The memory is freed when the corresponding architecture
1005    is also freed.  */
1006
1007 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1008 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1009 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1010
1011
1012 /* Helper function. Force an update of the current architecture.
1013
1014    The actual architecture selected is determined by INFO, ``(gdb) set
1015    architecture'' et.al., the existing architecture and BFD's default
1016    architecture.  INFO should be initialized to zero and then selected
1017    fields should be updated.
1018
1019    Returns non-zero if the update succeeds */
1020
1021 extern int gdbarch_update_p (struct gdbarch_info info);
1022
1023
1024 /* Helper function.  Find an architecture matching info.
1025
1026    INFO should be initialized using gdbarch_info_init, relevant fields
1027    set, and then finished using gdbarch_info_fill.
1028
1029    Returns the corresponding architecture, or NULL if no matching
1030    architecture was found.  "current_gdbarch" is not updated.  */
1031
1032 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1033
1034
1035 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1036
1037    FIXME: kettenis/20031124: Of the functions that follow, only
1038    gdbarch_from_bfd is supposed to survive.  The others will
1039    dissappear since in the future GDB will (hopefully) be truly
1040    multi-arch.  However, for now we're still stuck with the concept of
1041    a single active architecture.  */
1042
1043 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1044
1045
1046 /* Register per-architecture data-pointer.
1047
1048    Reserve space for a per-architecture data-pointer.  An identifier
1049    for the reserved data-pointer is returned.  That identifer should
1050    be saved in a local static variable.
1051
1052    Memory for the per-architecture data shall be allocated using
1053    gdbarch_obstack_zalloc.  That memory will be deleted when the
1054    corresponding architecture object is deleted.
1055
1056    When a previously created architecture is re-selected, the
1057    per-architecture data-pointer for that previous architecture is
1058    restored.  INIT() is not re-called.
1059
1060    Multiple registrarants for any architecture are allowed (and
1061    strongly encouraged).  */
1062
1063 struct gdbarch_data;
1064
1065 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1066 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1067 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1068 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1069 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1070                                          struct gdbarch_data *data,
1071                                          void *pointer);
1072
1073 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1074
1075
1076
1077 /* Register per-architecture memory region.
1078
1079    Provide a memory-region swap mechanism.  Per-architecture memory
1080    region are created.  These memory regions are swapped whenever the
1081    architecture is changed.  For a new architecture, the memory region
1082    is initialized with zero (0) and the INIT function is called.
1083
1084    Memory regions are swapped / initialized in the order that they are
1085    registered.  NULL DATA and/or INIT values can be specified.
1086
1087    New code should use gdbarch_data_register_*(). */
1088
1089 typedef void (gdbarch_swap_ftype) (void);
1090 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1091 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1092
1093
1094
1095 /* Set the dynamic target-system-dependent parameters (architecture,
1096    byte-order, ...) using information found in the BFD */
1097
1098 extern void set_gdbarch_from_file (bfd *);
1099
1100
1101 /* Initialize the current architecture to the "first" one we find on
1102    our list.  */
1103
1104 extern void initialize_current_architecture (void);
1105
1106 /* gdbarch trace variable */
1107 extern int gdbarch_debug;
1108
1109 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1110
1111 #endif