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