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 struct axs_value; 58 59 /* The architecture associated with the connection to the target. 60 61 The architecture vector provides some information that is really 62 a property of the target: The layout of certain packets, for instance; 63 or the solib_ops vector. Etc. To differentiate architecture accesses 64 to per-target properties from per-thread/per-frame/per-objfile properties, 65 accesses to per-target properties should be made through target_gdbarch. 66 67 Eventually, when support for multiple targets is implemented in 68 GDB, this global should be made target-specific. */ 69 extern struct gdbarch *target_gdbarch; 70 71 72 /* The following are pre-initialized by GDBARCH. */ 73 74 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch); 75 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */ 76 77 extern int gdbarch_byte_order (struct gdbarch *gdbarch); 78 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */ 79 80 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch); 81 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */ 82 83 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch); 84 /* set_gdbarch_osabi() - not applicable - pre-initialized. */ 85 86 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch); 87 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */ 88 89 90 /* The following are initialized by the target dependent code. */ 91 92 /* The bit byte-order has to do just with numbering of bits in debugging symbols 93 and such. Conceptually, it's quite separate from byte/word byte order. */ 94 95 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch); 96 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian); 97 98 /* Number of bits in a char or unsigned char for the target machine. 99 Just like CHAR_BIT in <limits.h> but describes the target machine. 100 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: 101 102 Number of bits in a short or unsigned short for the target machine. */ 103 104 extern int gdbarch_short_bit (struct gdbarch *gdbarch); 105 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit); 106 107 /* Number of bits in an int or unsigned int for the target machine. */ 108 109 extern int gdbarch_int_bit (struct gdbarch *gdbarch); 110 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit); 111 112 /* Number of bits in a long or unsigned long for the target machine. */ 113 114 extern int gdbarch_long_bit (struct gdbarch *gdbarch); 115 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit); 116 117 /* Number of bits in a long long or unsigned long long for the target 118 machine. */ 119 120 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch); 121 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit); 122 123 /* Alignment of a long long or unsigned long long for the target 124 machine. */ 125 126 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch); 127 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit); 128 129 /* The ABI default bit-size and format for "half", "float", "double", and 130 "long double". These bit/format pairs should eventually be combined 131 into a single object. For the moment, just initialize them as a pair. 132 Each format describes both the big and little endian layouts (if 133 useful). */ 134 135 extern int gdbarch_half_bit (struct gdbarch *gdbarch); 136 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit); 137 138 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch); 139 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format); 140 141 extern int gdbarch_float_bit (struct gdbarch *gdbarch); 142 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit); 143 144 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch); 145 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format); 146 147 extern int gdbarch_double_bit (struct gdbarch *gdbarch); 148 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit); 149 150 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch); 151 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format); 152 153 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch); 154 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit); 155 156 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch); 157 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format); 158 159 /* For most targets, a pointer on the target and its representation as an 160 address in GDB have the same size and "look the same". For such a 161 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit 162 / addr_bit will be set from it. 163 164 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably 165 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and 166 gdbarch_address_to_pointer as well. 167 168 ptr_bit is the size of a pointer on the target */ 169 170 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch); 171 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit); 172 173 /* addr_bit is the size of a target address as represented in gdb */ 174 175 extern int gdbarch_addr_bit (struct gdbarch *gdbarch); 176 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit); 177 178 /* dwarf2_addr_size is the target address size as used in the Dwarf debug 179 info. For .debug_frame FDEs, this is supposed to be the target address 180 size from the associated CU header, and which is equivalent to the 181 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end. 182 Unfortunately there is no good way to determine this value. Therefore 183 dwarf2_addr_size simply defaults to the target pointer size. 184 185 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally 186 defined using the target's pointer size so far. 187 188 Note that dwarf2_addr_size only needs to be redefined by a target if the 189 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size, 190 and if Dwarf versions < 4 need to be supported. */ 191 192 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch); 193 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size); 194 195 /* One if `char' acts like `signed char', zero if `unsigned char'. */ 196 197 extern int gdbarch_char_signed (struct gdbarch *gdbarch); 198 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed); 199 200 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch); 201 202 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache); 203 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache); 204 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc); 205 206 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch); 207 208 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val); 209 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val); 210 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc); 211 212 /* Function for getting target's idea of a frame pointer. FIXME: GDB's 213 whole scheme for dealing with "frames" and "frame pointers" needs a 214 serious shakedown. */ 215 216 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset); 217 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset); 218 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer); 219 220 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch); 221 222 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); 223 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); 224 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read); 225 226 /* Read a register into a new struct value. If the register is wholly 227 or partly unavailable, this should call mark_value_bytes_unavailable 228 as appropriate. If this is defined, then pseudo_register_read will 229 never be called. */ 230 231 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch); 232 233 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum); 234 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum); 235 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value); 236 237 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch); 238 239 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 240 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 241 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write); 242 243 extern int gdbarch_num_regs (struct gdbarch *gdbarch); 244 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs); 245 246 /* This macro gives the number of pseudo-registers that live in the 247 register namespace but do not get fetched or stored on the target. 248 These pseudo-registers may be aliases for other registers, 249 combinations of other registers, or they may be computed by GDB. */ 250 251 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch); 252 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs); 253 254 /* Assemble agent expression bytecode to collect pseudo-register REG. 255 Return -1 if something goes wrong, 0 otherwise. */ 256 257 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch); 258 259 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 260 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 261 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect); 262 263 /* Assemble agent expression bytecode to push the value of pseudo-register 264 REG on the interpreter stack. 265 Return -1 if something goes wrong, 0 otherwise. */ 266 267 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch); 268 269 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 270 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 271 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack); 272 273 /* GDB's standard (or well known) register numbers. These can map onto 274 a real register or a pseudo (computed) register or not be defined at 275 all (-1). 276 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */ 277 278 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch); 279 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum); 280 281 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch); 282 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum); 283 284 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch); 285 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum); 286 287 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch); 288 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum); 289 290 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */ 291 292 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr); 293 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr); 294 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum); 295 296 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */ 297 298 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr); 299 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr); 300 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum); 301 302 /* Convert from an sdb register number to an internal gdb register number. */ 303 304 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr); 305 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr); 306 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum); 307 308 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */ 309 310 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr); 311 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr); 312 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum); 313 314 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr); 315 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr); 316 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name); 317 318 /* Return the type of a register specified by the architecture. Only 319 the register cache should call this function directly; others should 320 use "register_type". */ 321 322 extern int gdbarch_register_type_p (struct gdbarch *gdbarch); 323 324 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr); 325 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr); 326 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type); 327 328 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */ 329 330 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch); 331 332 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame); 333 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame); 334 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id); 335 336 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete 337 deprecated_fp_regnum. */ 338 339 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch); 340 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum); 341 342 /* See gdbint.texinfo. See infcall.c. */ 343 344 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch); 345 346 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); 347 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); 348 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call); 349 350 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch); 351 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location); 352 353 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch); 354 355 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); 356 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); 357 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code); 358 359 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all); 360 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all); 361 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info); 362 363 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch); 364 365 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 366 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 367 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info); 368 369 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch); 370 371 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 372 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 373 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info); 374 375 /* MAP a GDB RAW register number onto a simulator register number. See 376 also include/...-sim.h. */ 377 378 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr); 379 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr); 380 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno); 381 382 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum); 383 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum); 384 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register); 385 386 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum); 387 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum); 388 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register); 389 390 /* setjmp/longjmp support. */ 391 392 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch); 393 394 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc); 395 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc); 396 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target); 397 398 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch); 399 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion); 400 401 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type); 402 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type); 403 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p); 404 405 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep); 406 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); 407 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value); 408 409 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf); 410 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf); 411 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register); 412 413 /* Construct a value representing the contents of register REGNUM in 414 frame FRAME, interpreted as type TYPE. The routine needs to 415 allocate and return a struct value with all value attributes 416 (but not the value contents) filled in. */ 417 418 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame); 419 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame); 420 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register); 421 422 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 423 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 424 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address); 425 426 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); 427 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); 428 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer); 429 430 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch); 431 432 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 433 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 434 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address); 435 436 /* Return the return-value convention that will be used by FUNCTYPE 437 to return a value of type VALTYPE. FUNCTYPE may be NULL in which 438 case the return convention is computed based only on VALTYPE. 439 440 If READBUF is not NULL, extract the return value and save it in this buffer. 441 442 If WRITEBUF is not NULL, it contains a return value which will be 443 stored into the appropriate register. This can be used when we want 444 to force the value returned by a function (see the "return" command 445 for instance). */ 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 *functype, 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 *functype, 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 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 454 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 455 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue); 456 457 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch); 458 459 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 460 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 461 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue); 462 463 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs); 464 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs); 465 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than); 466 467 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr); 468 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr); 469 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc); 470 471 /* Return the adjusted address and kind to use for Z0/Z1 packets. 472 KIND is usually the memory length of the breakpoint, but may have a 473 different target-specific meaning. */ 474 475 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr); 476 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr); 477 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc); 478 479 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch); 480 481 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 482 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 483 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address); 484 485 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 486 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 487 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint); 488 489 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 490 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 491 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint); 492 493 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch); 494 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break); 495 496 /* A function can be addressed by either it's "pointer" (possibly a 497 descriptor address) or "entry point" (first executable instruction). 498 The method "convert_from_func_ptr_addr" converting the former to the 499 latter. gdbarch_deprecated_function_start_offset is being used to implement 500 a simplified subset of that functionality - the function's address 501 corresponds to the "function pointer" and the function's start 502 corresponds to the "function entry point" - and hence is redundant. */ 503 504 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch); 505 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset); 506 507 /* Return the remote protocol register number associated with this 508 register. Normally the identity mapping. */ 509 510 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno); 511 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno); 512 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number); 513 514 /* Fetch the target specific address used to represent a load module. */ 515 516 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch); 517 518 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile); 519 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile); 520 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address); 521 522 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch); 523 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip); 524 525 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch); 526 527 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); 528 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame); 529 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc); 530 531 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch); 532 533 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); 534 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame); 535 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp); 536 537 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame 538 frame-base. Enable frame-base before frame-unwind. */ 539 540 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch); 541 542 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame); 543 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame); 544 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args); 545 546 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch); 547 548 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 549 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address); 550 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align); 551 552 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type); 553 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type); 554 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr); 555 556 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch); 557 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size); 558 559 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 560 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 561 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr); 562 563 /* On some machines there are bits in addresses which are not really 564 part of the address, but are used by the kernel, the hardware, etc. 565 for special purposes. gdbarch_addr_bits_remove takes out any such bits so 566 we get a "real" address such as one would find in a symbol table. 567 This is used only for addresses of instructions, and even then I'm 568 not sure it's used in all contexts. It exists to deal with there 569 being a few stray bits in the PC which would mislead us, not as some 570 sort of generic thing to handle alignment or segmentation (it's 571 possible it should be in TARGET_READ_PC instead). */ 572 573 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 574 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr); 575 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove); 576 577 /* It is not at all clear why gdbarch_smash_text_address is not folded into 578 gdbarch_addr_bits_remove. */ 579 580 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 581 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr); 582 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address); 583 584 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that 585 indicates if the target needs software single step. An ISA method to 586 implement it. 587 588 FIXME/cagney/2001-01-18: This should be replaced with something that inserts 589 breakpoints using the breakpoint system instead of blatting memory directly 590 (as with rs6000). 591 592 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the 593 target can single step. If not, then implement single step using breakpoints. 594 595 A return value of 1 means that the software_single_step breakpoints 596 were inserted; 0 means they were not. */ 597 598 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch); 599 600 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame); 601 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame); 602 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step); 603 604 /* Return non-zero if the processor is executing a delay slot and a 605 further single-step is needed before the instruction finishes. */ 606 607 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch); 608 609 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame); 610 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame); 611 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay); 612 613 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the 614 disassembler. Perhaps objdump can handle it? */ 615 616 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info); 617 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info); 618 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn); 619 620 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc); 621 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc); 622 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code); 623 624 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER 625 evaluates non-zero, this is the address where the debugger will place 626 a step-resume breakpoint to get us past the dynamic linker. */ 627 628 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 629 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc); 630 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver); 631 632 /* Some systems also have trampoline code for returning from shared libs. */ 633 634 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, char *name); 635 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name); 636 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline); 637 638 /* A target might have problems with watchpoints as soon as the stack 639 frame of the current function has been destroyed. This mostly happens 640 as the first action in a funtion's epilogue. in_function_epilogue_p() 641 is defined to return a non-zero value if either the given addr is one 642 instruction after the stack destroying instruction up to the trailing 643 return instruction or if we can figure out that the stack frame has 644 already been invalidated regardless of the value of addr. Targets 645 which don't suffer from that problem could just let this functionality 646 untouched. */ 647 648 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 649 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr); 650 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p); 651 652 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym); 653 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym); 654 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special); 655 656 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym); 657 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym); 658 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special); 659 660 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch); 661 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint); 662 663 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch); 664 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint); 665 666 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch); 667 668 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class); 669 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class); 670 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags); 671 672 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch); 673 674 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags); 675 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags); 676 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); 677 678 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch); 679 680 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr); 681 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr); 682 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); 683 684 /* Is a register in a group */ 685 686 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup); 687 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup); 688 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p); 689 690 /* Fetch the pointer to the ith function argument. */ 691 692 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch); 693 694 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type); 695 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type); 696 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument); 697 698 /* Return the appropriate register set for a core file section with 699 name SECT_NAME and size SECT_SIZE. */ 700 701 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch); 702 703 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size); 704 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size); 705 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section); 706 707 /* Supported register notes in a core file. */ 708 709 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch); 710 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections); 711 712 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from 713 core file into buffer READBUF with length LEN. */ 714 715 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch); 716 717 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len); 718 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len); 719 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries); 720 721 /* How the core target converts a PTID from a core file to a string. */ 722 723 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch); 724 725 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid); 726 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid); 727 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str); 728 729 /* BFD target to use when generating a core file. */ 730 731 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch); 732 733 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch); 734 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target); 735 736 /* If the elements of C++ vtables are in-place function descriptors rather 737 than normal function pointers (which may point to code or a descriptor), 738 set this to one. */ 739 740 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch); 741 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors); 742 743 /* Set if the least significant bit of the delta is used instead of the least 744 significant bit of the pfn for pointers to virtual member functions. */ 745 746 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch); 747 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta); 748 749 /* Advance PC to next instruction in order to skip a permanent breakpoint. */ 750 751 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch); 752 753 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache); 754 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache); 755 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint); 756 757 /* The maximum length of an instruction on this architecture. */ 758 759 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch); 760 761 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch); 762 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length); 763 764 /* Copy the instruction at FROM to TO, and make any adjustments 765 necessary to single-step it at that address. 766 767 REGS holds the state the thread's registers will have before 768 executing the copied instruction; the PC in REGS will refer to FROM, 769 not the copy at TO. The caller should update it to point at TO later. 770 771 Return a pointer to data of the architecture's choice to be passed 772 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that 773 the instruction's effects have been completely simulated, with the 774 resulting state written back to REGS. 775 776 For a general explanation of displaced stepping and how GDB uses it, 777 see the comments in infrun.c. 778 779 The TO area is only guaranteed to have space for 780 gdbarch_max_insn_length (arch) bytes, so this function must not 781 write more bytes than that to that area. 782 783 If you do not provide this function, GDB assumes that the 784 architecture does not support displaced stepping. 785 786 If your architecture doesn't need to adjust instructions before 787 single-stepping them, consider using simple_displaced_step_copy_insn 788 here. */ 789 790 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch); 791 792 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 793 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 794 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn); 795 796 /* Return true if GDB should use hardware single-stepping to execute 797 the displaced instruction identified by CLOSURE. If false, 798 GDB will simply restart execution at the displaced instruction 799 location, and it is up to the target to ensure GDB will receive 800 control again (e.g. by placing a software breakpoint instruction 801 into the displaced instruction buffer). 802 803 The default implementation returns false on all targets that 804 provide a gdbarch_software_single_step routine, and true otherwise. */ 805 806 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 807 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 808 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep); 809 810 /* Fix up the state resulting from successfully single-stepping a 811 displaced instruction, to give the result we would have gotten from 812 stepping the instruction in its original location. 813 814 REGS is the register state resulting from single-stepping the 815 displaced instruction. 816 817 CLOSURE is the result from the matching call to 818 gdbarch_displaced_step_copy_insn. 819 820 If you provide gdbarch_displaced_step_copy_insn.but not this 821 function, then GDB assumes that no fixup is needed after 822 single-stepping the instruction. 823 824 For a general explanation of displaced stepping and how GDB uses it, 825 see the comments in infrun.c. */ 826 827 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch); 828 829 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 830 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 831 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup); 832 833 /* Free a closure returned by gdbarch_displaced_step_copy_insn. 834 835 If you provide gdbarch_displaced_step_copy_insn, you must provide 836 this function as well. 837 838 If your architecture uses closures that don't need to be freed, then 839 you can use simple_displaced_step_free_closure here. 840 841 For a general explanation of displaced stepping and how GDB uses it, 842 see the comments in infrun.c. */ 843 844 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 845 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 846 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure); 847 848 /* Return the address of an appropriate place to put displaced 849 instructions while we step over them. There need only be one such 850 place, since we're only stepping one thread over a breakpoint at a 851 time. 852 853 For a general explanation of displaced stepping and how GDB uses it, 854 see the comments in infrun.c. */ 855 856 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch); 857 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch); 858 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location); 859 860 /* Relocate an instruction to execute at a different address. OLDLOC 861 is the address in the inferior memory where the instruction to 862 relocate is currently at. On input, TO points to the destination 863 where we want the instruction to be copied (and possibly adjusted) 864 to. On output, it points to one past the end of the resulting 865 instruction(s). The effect of executing the instruction at TO shall 866 be the same as if executing it at FROM. For example, call 867 instructions that implicitly push the return address on the stack 868 should be adjusted to return to the instruction after OLDLOC; 869 relative branches, and other PC-relative instructions need the 870 offset adjusted; etc. */ 871 872 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch); 873 874 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from); 875 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from); 876 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction); 877 878 /* Refresh overlay mapped state for section OSECT. */ 879 880 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch); 881 882 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect); 883 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect); 884 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update); 885 886 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch); 887 888 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd); 889 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd); 890 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description); 891 892 /* Handle special encoding of static variables in stabs debug info. */ 893 894 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch); 895 896 typedef char * (gdbarch_static_transform_name_ftype) (char *name); 897 extern char * gdbarch_static_transform_name (struct gdbarch *gdbarch, char *name); 898 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name); 899 900 /* Set if the address in N_SO or N_FUN stabs may be zero. */ 901 902 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch); 903 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing); 904 905 /* Parse the instruction at ADDR storing in the record execution log 906 the registers REGCACHE and memory ranges that will be affected when 907 the instruction executes, along with their current values. 908 Return -1 if something goes wrong, 0 otherwise. */ 909 910 extern int gdbarch_process_record_p (struct gdbarch *gdbarch); 911 912 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 913 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 914 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record); 915 916 /* Save process state after a signal. 917 Return -1 if something goes wrong, 0 otherwise. */ 918 919 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch); 920 921 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal); 922 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal); 923 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal); 924 925 /* Signal translation: translate inferior's signal (host's) number into 926 GDB's representation. */ 927 928 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo); 929 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo); 930 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host); 931 932 /* Signal translation: translate GDB's signal number into inferior's host 933 signal number. */ 934 935 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts); 936 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts); 937 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host); 938 939 /* Extra signal info inspection. 940 941 Return a type suitable to inspect extra signal information. */ 942 943 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch); 944 945 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch); 946 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch); 947 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type); 948 949 /* Record architecture-specific information from the symbol table. */ 950 951 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch); 952 953 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym); 954 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym); 955 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol); 956 957 /* Function for the 'catch syscall' feature. 958 Get architecture-specific system calls information from registers. */ 959 960 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch); 961 962 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid); 963 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid); 964 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number); 965 966 /* True if the list of shared libraries is one and only for all 967 processes, as opposed to a list of shared libraries per inferior. 968 This usually means that all processes, although may or may not share 969 an address space, will see the same set of symbols at the same 970 addresses. */ 971 972 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch); 973 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist); 974 975 /* On some targets, even though each inferior has its own private 976 address space, the debug interface takes care of making breakpoints 977 visible to all address spaces automatically. For such cases, 978 this property should be set to true. */ 979 980 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch); 981 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints); 982 983 /* True if inferiors share an address space (e.g., uClinux). */ 984 985 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch); 986 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch); 987 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space); 988 989 /* True if a fast tracepoint can be set at an address. */ 990 991 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg); 992 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg); 993 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at); 994 995 /* Return the "auto" target charset. */ 996 997 typedef const char * (gdbarch_auto_charset_ftype) (void); 998 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch); 999 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset); 1000 1001 /* Return the "auto" target wide charset. */ 1002 1003 typedef const char * (gdbarch_auto_wide_charset_ftype) (void); 1004 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch); 1005 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset); 1006 1007 /* If non-empty, this is a file extension that will be opened in place 1008 of the file extension reported by the shared library list. 1009 1010 This is most useful for toolchains that use a post-linker tool, 1011 where the names of the files run on the target differ in extension 1012 compared to the names of the files GDB should load for debug info. */ 1013 1014 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch); 1015 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension); 1016 1017 /* If true, the target OS has DOS-based file system semantics. That 1018 is, absolute paths include a drive name, and the backslash is 1019 considered a directory separator. */ 1020 1021 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch); 1022 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system); 1023 1024 /* Generate bytecodes to collect the return address in a frame. 1025 Since the bytecodes run on the target, possibly with GDB not even 1026 connected, the full unwinding machinery is not available, and 1027 typically this function will issue bytecodes for one or more likely 1028 places that the return address may be found. */ 1029 1030 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope); 1031 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope); 1032 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address); 1033 1034 /* Definition for an unknown syscall, used basically in error-cases. */ 1035 #define UNKNOWN_SYSCALL (-1) 1036 1037 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); 1038 1039 1040 /* Mechanism for co-ordinating the selection of a specific 1041 architecture. 1042 1043 GDB targets (*-tdep.c) can register an interest in a specific 1044 architecture. Other GDB components can register a need to maintain 1045 per-architecture data. 1046 1047 The mechanisms below ensures that there is only a loose connection 1048 between the set-architecture command and the various GDB 1049 components. Each component can independently register their need 1050 to maintain architecture specific data with gdbarch. 1051 1052 Pragmatics: 1053 1054 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It 1055 didn't scale. 1056 1057 The more traditional mega-struct containing architecture specific 1058 data for all the various GDB components was also considered. Since 1059 GDB is built from a variable number of (fairly independent) 1060 components it was determined that the global aproach was not 1061 applicable. */ 1062 1063 1064 /* Register a new architectural family with GDB. 1065 1066 Register support for the specified ARCHITECTURE with GDB. When 1067 gdbarch determines that the specified architecture has been 1068 selected, the corresponding INIT function is called. 1069 1070 -- 1071 1072 The INIT function takes two parameters: INFO which contains the 1073 information available to gdbarch about the (possibly new) 1074 architecture; ARCHES which is a list of the previously created 1075 ``struct gdbarch'' for this architecture. 1076 1077 The INFO parameter is, as far as possible, be pre-initialized with 1078 information obtained from INFO.ABFD or the global defaults. 1079 1080 The ARCHES parameter is a linked list (sorted most recently used) 1081 of all the previously created architures for this architecture 1082 family. The (possibly NULL) ARCHES->gdbarch can used to access 1083 values from the previously selected architecture for this 1084 architecture family. 1085 1086 The INIT function shall return any of: NULL - indicating that it 1087 doesn't recognize the selected architecture; an existing ``struct 1088 gdbarch'' from the ARCHES list - indicating that the new 1089 architecture is just a synonym for an earlier architecture (see 1090 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch'' 1091 - that describes the selected architecture (see gdbarch_alloc()). 1092 1093 The DUMP_TDEP function shall print out all target specific values. 1094 Care should be taken to ensure that the function works in both the 1095 multi-arch and non- multi-arch cases. */ 1096 1097 struct gdbarch_list 1098 { 1099 struct gdbarch *gdbarch; 1100 struct gdbarch_list *next; 1101 }; 1102 1103 struct gdbarch_info 1104 { 1105 /* Use default: NULL (ZERO). */ 1106 const struct bfd_arch_info *bfd_arch_info; 1107 1108 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ 1109 int byte_order; 1110 1111 int byte_order_for_code; 1112 1113 /* Use default: NULL (ZERO). */ 1114 bfd *abfd; 1115 1116 /* Use default: NULL (ZERO). */ 1117 struct gdbarch_tdep_info *tdep_info; 1118 1119 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ 1120 enum gdb_osabi osabi; 1121 1122 /* Use default: NULL (ZERO). */ 1123 const struct target_desc *target_desc; 1124 }; 1125 1126 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); 1127 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); 1128 1129 /* DEPRECATED - use gdbarch_register() */ 1130 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); 1131 1132 extern void gdbarch_register (enum bfd_architecture architecture, 1133 gdbarch_init_ftype *, 1134 gdbarch_dump_tdep_ftype *); 1135 1136 1137 /* Return a freshly allocated, NULL terminated, array of the valid 1138 architecture names. Since architectures are registered during the 1139 _initialize phase this function only returns useful information 1140 once initialization has been completed. */ 1141 1142 extern const char **gdbarch_printable_names (void); 1143 1144 1145 /* Helper function. Search the list of ARCHES for a GDBARCH that 1146 matches the information provided by INFO. */ 1147 1148 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); 1149 1150 1151 /* Helper function. Create a preliminary ``struct gdbarch''. Perform 1152 basic initialization using values obtained from the INFO and TDEP 1153 parameters. set_gdbarch_*() functions are called to complete the 1154 initialization of the object. */ 1155 1156 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); 1157 1158 1159 /* Helper function. Free a partially-constructed ``struct gdbarch''. 1160 It is assumed that the caller freeds the ``struct 1161 gdbarch_tdep''. */ 1162 1163 extern void gdbarch_free (struct gdbarch *); 1164 1165 1166 /* Helper function. Allocate memory from the ``struct gdbarch'' 1167 obstack. The memory is freed when the corresponding architecture 1168 is also freed. */ 1169 1170 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); 1171 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) 1172 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) 1173 1174 1175 /* Helper function. Force an update of the current architecture. 1176 1177 The actual architecture selected is determined by INFO, ``(gdb) set 1178 architecture'' et.al., the existing architecture and BFD's default 1179 architecture. INFO should be initialized to zero and then selected 1180 fields should be updated. 1181 1182 Returns non-zero if the update succeeds. */ 1183 1184 extern int gdbarch_update_p (struct gdbarch_info info); 1185 1186 1187 /* Helper function. Find an architecture matching info. 1188 1189 INFO should be initialized using gdbarch_info_init, relevant fields 1190 set, and then finished using gdbarch_info_fill. 1191 1192 Returns the corresponding architecture, or NULL if no matching 1193 architecture was found. */ 1194 1195 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); 1196 1197 1198 /* Helper function. Set the global "target_gdbarch" to "gdbarch". 1199 1200 FIXME: kettenis/20031124: Of the functions that follow, only 1201 gdbarch_from_bfd is supposed to survive. The others will 1202 dissappear since in the future GDB will (hopefully) be truly 1203 multi-arch. However, for now we're still stuck with the concept of 1204 a single active architecture. */ 1205 1206 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch); 1207 1208 1209 /* Register per-architecture data-pointer. 1210 1211 Reserve space for a per-architecture data-pointer. An identifier 1212 for the reserved data-pointer is returned. That identifer should 1213 be saved in a local static variable. 1214 1215 Memory for the per-architecture data shall be allocated using 1216 gdbarch_obstack_zalloc. That memory will be deleted when the 1217 corresponding architecture object is deleted. 1218 1219 When a previously created architecture is re-selected, the 1220 per-architecture data-pointer for that previous architecture is 1221 restored. INIT() is not re-called. 1222 1223 Multiple registrarants for any architecture are allowed (and 1224 strongly encouraged). */ 1225 1226 struct gdbarch_data; 1227 1228 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); 1229 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); 1230 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); 1231 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); 1232 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, 1233 struct gdbarch_data *data, 1234 void *pointer); 1235 1236 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); 1237 1238 1239 /* Set the dynamic target-system-dependent parameters (architecture, 1240 byte-order, ...) using information found in the BFD. */ 1241 1242 extern void set_gdbarch_from_file (bfd *); 1243 1244 1245 /* Initialize the current architecture to the "first" one we find on 1246 our list. */ 1247 1248 extern void initialize_current_architecture (void); 1249 1250 /* gdbarch trace variable */ 1251 extern int gdbarch_debug; 1252 1253 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); 1254 1255 #endif 1256