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, 2007 6 Free Software Foundation, Inc. 7 8 This file is part of GDB. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 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 38struct floatformat; 39struct ui_file; 40struct frame_info; 41struct value; 42struct objfile; 43struct obj_section; 44struct minimal_symbol; 45struct regcache; 46struct reggroup; 47struct regset; 48struct disassemble_info; 49struct target_ops; 50struct obstack; 51struct bp_target_info; 52struct target_desc; 53 54extern struct gdbarch *current_gdbarch; 55 56 57/* The following are pre-initialized by GDBARCH. */ 58 59extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch); 60/* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */ 61 62extern int gdbarch_byte_order (struct gdbarch *gdbarch); 63/* set_gdbarch_byte_order() - not applicable - pre-initialized. */ 64 65extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch); 66/* set_gdbarch_osabi() - not applicable - pre-initialized. */ 67 68extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch); 69/* set_gdbarch_target_desc() - not applicable - pre-initialized. */ 70 71 72/* The following are initialized by the target dependent code. */ 73 74/* Number of bits in a char or unsigned char for the target machine. 75 Just like CHAR_BIT in <limits.h> but describes the target machine. 76 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: 77 78 Number of bits in a short or unsigned short for the target machine. */ 79 80extern int gdbarch_short_bit (struct gdbarch *gdbarch); 81extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit); 82 83/* Number of bits in an int or unsigned int for the target machine. */ 84 85extern int gdbarch_int_bit (struct gdbarch *gdbarch); 86extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit); 87 88/* Number of bits in a long or unsigned long for the target machine. */ 89 90extern int gdbarch_long_bit (struct gdbarch *gdbarch); 91extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit); 92 93/* Number of bits in a long long or unsigned long long for the target 94 machine. */ 95 96extern int gdbarch_long_long_bit (struct gdbarch *gdbarch); 97extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit); 98 99/* The ABI default bit-size and format for "float", "double", and "long 100 double". These bit/format pairs should eventually be combined into 101 a single object. For the moment, just initialize them as a pair. 102 Each format describes both the big and little endian layouts (if 103 useful). */ 104 105extern int gdbarch_float_bit (struct gdbarch *gdbarch); 106extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit); 107 108extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch); 109extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format); 110 111extern int gdbarch_double_bit (struct gdbarch *gdbarch); 112extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit); 113 114extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch); 115extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format); 116 117extern int gdbarch_long_double_bit (struct gdbarch *gdbarch); 118extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit); 119 120extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch); 121extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format); 122 123/* For most targets, a pointer on the target and its representation as an 124 address in GDB have the same size and "look the same". For such a 125 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit 126 / addr_bit will be set from it. 127 128 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably 129 also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer 130 as well. 131 132 ptr_bit is the size of a pointer on the target */ 133 134extern int gdbarch_ptr_bit (struct gdbarch *gdbarch); 135extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit); 136 137/* addr_bit is the size of a target address as represented in gdb */ 138 139extern int gdbarch_addr_bit (struct gdbarch *gdbarch); 140extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit); 141 142/* One if `char' acts like `signed char', zero if `unsigned char'. */ 143 144extern int gdbarch_char_signed (struct gdbarch *gdbarch); 145extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed); 146 147extern int gdbarch_read_pc_p (struct gdbarch *gdbarch); 148 149typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache); 150extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache); 151extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc); 152 153extern int gdbarch_write_pc_p (struct gdbarch *gdbarch); 154 155typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val); 156extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val); 157extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc); 158 159/* Function for getting target's idea of a frame pointer. FIXME: GDB's 160 whole scheme for dealing with "frames" and "frame pointers" needs a 161 serious shakedown. */ 162 163typedef void (gdbarch_virtual_frame_pointer_ftype) (CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset); 164extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset); 165extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer); 166 167extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch); 168 169typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); 170extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); 171extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read); 172 173extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch); 174 175typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 176extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 177extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write); 178 179extern int gdbarch_num_regs (struct gdbarch *gdbarch); 180extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs); 181 182/* This macro gives the number of pseudo-registers that live in the 183 register namespace but do not get fetched or stored on the target. 184 These pseudo-registers may be aliases for other registers, 185 combinations of other registers, or they may be computed by GDB. */ 186 187extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch); 188extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs); 189 190/* GDB's standard (or well known) register numbers. These can map onto 191 a real register or a pseudo (computed) register or not be defined at 192 all (-1). 193 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */ 194 195extern int gdbarch_sp_regnum (struct gdbarch *gdbarch); 196extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum); 197 198extern int gdbarch_pc_regnum (struct gdbarch *gdbarch); 199extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum); 200 201extern int gdbarch_ps_regnum (struct gdbarch *gdbarch); 202extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum); 203 204extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch); 205extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum); 206 207/* Convert stab register number (from `r' declaration) to a gdb REGNUM. */ 208 209typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr); 210extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr); 211extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum); 212 213/* Provide a default mapping from a ecoff register number to a gdb REGNUM. */ 214 215typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr); 216extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr); 217extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum); 218 219/* Provide a default mapping from a DWARF register number to a gdb REGNUM. */ 220 221typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr); 222extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr); 223extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum); 224 225/* Convert from an sdb register number to an internal gdb register number. */ 226 227typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr); 228extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr); 229extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum); 230 231typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr); 232extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr); 233extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum); 234 235typedef const char * (gdbarch_register_name_ftype) (int regnr); 236extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr); 237extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name); 238 239/* Return the type of a register specified by the architecture. Only 240 the register cache should call this function directly; others should 241 use "register_type". */ 242 243extern int gdbarch_register_type_p (struct gdbarch *gdbarch); 244 245typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr); 246extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr); 247extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type); 248 249/* See gdbint.texinfo, and PUSH_DUMMY_CALL. */ 250 251extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch); 252 253typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info); 254extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info); 255extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id); 256 257/* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete 258 deprecated_fp_regnum. */ 259 260extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch); 261extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum); 262 263/* See gdbint.texinfo. See infcall.c. */ 264 265extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch); 266 267typedef 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); 268extern 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); 269extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call); 270 271extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch); 272extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location); 273 274extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch); 275 276typedef CORE_ADDR (gdbarch_push_dummy_code_ftype) (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache); 277extern CORE_ADDR gdbarch_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache); 278extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code); 279 280typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all); 281extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all); 282extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info); 283 284extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch); 285 286typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 287extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 288extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info); 289 290extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch); 291 292typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 293extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 294extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info); 295 296/* MAP a GDB RAW register number onto a simulator register number. See 297 also include/...-sim.h. */ 298 299typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr); 300extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr); 301extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno); 302 303typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum); 304extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum); 305extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register); 306 307typedef int (gdbarch_cannot_store_register_ftype) (int regnum); 308extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum); 309extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register); 310 311/* setjmp/longjmp support. */ 312 313extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch); 314 315typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc); 316extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc); 317extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target); 318 319extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch); 320extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion); 321 322typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type); 323extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type); 324extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p); 325 326typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf); 327extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf); 328extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value); 329 330typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf); 331extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf); 332extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register); 333 334/* Construct a value representing the contents of register REGNUM in 335 frame FRAME, interpreted as type TYPE. The routine needs to 336 allocate and return a struct value with all value attributes 337 (but not the value contents) filled in. */ 338 339typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame); 340extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame); 341extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register); 342 343typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf); 344extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 345extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address); 346 347typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr); 348extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); 349extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer); 350 351extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch); 352 353typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 354extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 355extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address); 356 357/* It has been suggested that this, well actually its predecessor, 358 should take the type/value of the function to be called and not the 359 return type. This is left as an exercise for the reader. 360 NOTE: cagney/2004-06-13: The function stack.c:return_command uses 361 the predicate with default hack to avoid calling store_return_value 362 (via legacy_return_value), when a small struct is involved. */ 363 364extern int gdbarch_return_value_p (struct gdbarch *gdbarch); 365 366typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf); 367extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf); 368extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value); 369 370/* The deprecated methods extract_return_value, store_return_value, 371 DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and 372 deprecated_use_struct_convention have all been folded into 373 RETURN_VALUE. */ 374 375typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf); 376extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf); 377extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value); 378 379typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf); 380extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf); 381extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value); 382 383typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type); 384extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type); 385extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention); 386 387typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip); 388extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 389extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue); 390 391typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs); 392extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs); 393extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than); 394 395typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr); 396extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr); 397extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc); 398 399extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch); 400 401typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 402extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 403extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address); 404 405typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt); 406extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 407extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint); 408 409typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt); 410extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 411extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint); 412 413extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch); 414extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break); 415 416/* A function can be addressed by either it's "pointer" (possibly a 417 descriptor address) or "entry point" (first executable instruction). 418 The method "convert_from_func_ptr_addr" converting the former to the 419 latter. gdbarch_deprecated_function_start_offset is being used to implement 420 a simplified subset of that functionality - the function's address 421 corresponds to the "function pointer" and the function's start 422 corresponds to the "function entry point" - and hence is redundant. */ 423 424extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch); 425extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset); 426 427/* Return the remote protocol register number associated with this 428 register. Normally the identity mapping. */ 429 430typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno); 431extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno); 432extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number); 433 434/* Fetch the target specific address used to represent a load module. */ 435 436extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch); 437 438typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile); 439extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile); 440extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address); 441 442extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch); 443extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip); 444 445extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch); 446 447typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); 448extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame); 449extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc); 450 451extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch); 452 453typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); 454extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame); 455extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp); 456 457/* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame 458 frame-base. Enable frame-base before frame-unwind. */ 459 460extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch); 461 462typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame); 463extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame); 464extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args); 465 466extern int gdbarch_frame_align_p (struct gdbarch *gdbarch); 467 468typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 469extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address); 470extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align); 471 472/* deprecated_reg_struct_has_addr has been replaced by 473 stabs_argument_has_addr. */ 474 475extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch); 476 477typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type); 478extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type); 479extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr); 480 481typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type); 482extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type); 483extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr); 484 485extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch); 486extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size); 487 488typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 489extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 490extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr); 491 492/* On some machines there are bits in addresses which are not really 493 part of the address, but are used by the kernel, the hardware, etc. 494 for special purposes. gdbarch_addr_bits_remove takes out any such bits so 495 we get a "real" address such as one would find in a symbol table. 496 This is used only for addresses of instructions, and even then I'm 497 not sure it's used in all contexts. It exists to deal with there 498 being a few stray bits in the PC which would mislead us, not as some 499 sort of generic thing to handle alignment or segmentation (it's 500 possible it should be in TARGET_READ_PC instead). */ 501 502typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr); 503extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr); 504extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove); 505 506/* It is not at all clear why gdbarch_smash_text_address is not folded into 507 gdbarch_addr_bits_remove. */ 508 509typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr); 510extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr); 511extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address); 512 513/* FIXME/cagney/2001-01-18: This should be split in two. A target method that 514 indicates if the target needs software single step. An ISA method to 515 implement it. 516 517 FIXME/cagney/2001-01-18: This should be replaced with something that inserts 518 breakpoints using the breakpoint system instead of blatting memory directly 519 (as with rs6000). 520 521 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the 522 target can single step. If not, then implement single step using breakpoints. 523 524 A return value of 1 means that the software_single_step breakpoints 525 were inserted; 0 means they were not. */ 526 527extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch); 528 529typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame); 530extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame); 531extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step); 532 533/* Return non-zero if the processor is executing a delay slot and a 534 further single-step is needed before the instruction finishes. */ 535 536extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch); 537 538typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame); 539extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame); 540extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay); 541 542/* FIXME: cagney/2003-08-28: Need to find a better way of selecting the 543 disassembler. Perhaps objdump can handle it? */ 544 545typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info); 546extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info); 547extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn); 548 549typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc); 550extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc); 551extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code); 552 553/* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER 554 evaluates non-zero, this is the address where the debugger will place 555 a step-resume breakpoint to get us past the dynamic linker. */ 556 557typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 558extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc); 559extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver); 560 561/* Some systems also have trampoline code for returning from shared libs. */ 562 563typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name); 564extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name); 565extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline); 566 567/* A target might have problems with watchpoints as soon as the stack 568 frame of the current function has been destroyed. This mostly happens 569 as the first action in a funtion's epilogue. in_function_epilogue_p() 570 is defined to return a non-zero value if either the given addr is one 571 instruction after the stack destroying instruction up to the trailing 572 return instruction or if we can figure out that the stack frame has 573 already been invalidated regardless of the value of addr. Targets 574 which don't suffer from that problem could just let this functionality 575 untouched. */ 576 577typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 578extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr); 579extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p); 580 581/* Given a vector of command-line arguments, return a newly allocated 582 string which, when passed to the create_inferior function, will be 583 parsed (on Unix systems, by the shell) to yield the same vector. 584 This function should call error() if the argument vector is not 585 representable for this target or if this target does not support 586 command-line arguments. 587 ARGC is the number of elements in the vector. 588 ARGV is an array of strings, one per argument. */ 589 590typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv); 591extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv); 592extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments); 593 594typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym); 595extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym); 596extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special); 597 598typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym); 599extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym); 600extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special); 601 602extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch); 603extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc); 604 605extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch); 606extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint); 607 608extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch); 609extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint); 610 611extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch); 612 613typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class); 614extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class); 615extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags); 616 617extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch); 618 619typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags); 620extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags); 621extern 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); 622 623extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch); 624 625typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr); 626extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr); 627extern 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); 628 629/* Is a register in a group */ 630 631typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup); 632extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup); 633extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p); 634 635/* Fetch the pointer to the ith function argument. */ 636 637extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch); 638 639typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type); 640extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type); 641extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument); 642 643/* Return the appropriate register set for a core file section with 644 name SECT_NAME and size SECT_SIZE. */ 645 646extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch); 647 648typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size); 649extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size); 650extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section); 651 652/* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from 653 core file into buffer READBUF with length LEN. */ 654 655extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch); 656 657typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len); 658extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len); 659extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries); 660 661/* If the elements of C++ vtables are in-place function descriptors rather 662 than normal function pointers (which may point to code or a descriptor), 663 set this to one. */ 664 665extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch); 666extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors); 667 668/* Set if the least significant bit of the delta is used instead of the least 669 significant bit of the pfn for pointers to virtual member functions. */ 670 671extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch); 672extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta); 673 674/* Advance PC to next instruction in order to skip a permanent breakpoint. */ 675 676extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch); 677 678typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache); 679extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache); 680extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint); 681 682/* Refresh overlay mapped state for section OSECT. */ 683 684extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch); 685 686typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect); 687extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect); 688extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update); 689 690extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); 691 692 693/* Mechanism for co-ordinating the selection of a specific 694 architecture. 695 696 GDB targets (*-tdep.c) can register an interest in a specific 697 architecture. Other GDB components can register a need to maintain 698 per-architecture data. 699 700 The mechanisms below ensures that there is only a loose connection 701 between the set-architecture command and the various GDB 702 components. Each component can independently register their need 703 to maintain architecture specific data with gdbarch. 704 705 Pragmatics: 706 707 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It 708 didn't scale. 709 710 The more traditional mega-struct containing architecture specific 711 data for all the various GDB components was also considered. Since 712 GDB is built from a variable number of (fairly independent) 713 components it was determined that the global aproach was not 714 applicable. */ 715 716 717/* Register a new architectural family with GDB. 718 719 Register support for the specified ARCHITECTURE with GDB. When 720 gdbarch determines that the specified architecture has been 721 selected, the corresponding INIT function is called. 722 723 -- 724 725 The INIT function takes two parameters: INFO which contains the 726 information available to gdbarch about the (possibly new) 727 architecture; ARCHES which is a list of the previously created 728 ``struct gdbarch'' for this architecture. 729 730 The INFO parameter is, as far as possible, be pre-initialized with 731 information obtained from INFO.ABFD or the global defaults. 732 733 The ARCHES parameter is a linked list (sorted most recently used) 734 of all the previously created architures for this architecture 735 family. The (possibly NULL) ARCHES->gdbarch can used to access 736 values from the previously selected architecture for this 737 architecture family. The global ``current_gdbarch'' shall not be 738 used. 739 740 The INIT function shall return any of: NULL - indicating that it 741 doesn't recognize the selected architecture; an existing ``struct 742 gdbarch'' from the ARCHES list - indicating that the new 743 architecture is just a synonym for an earlier architecture (see 744 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch'' 745 - that describes the selected architecture (see gdbarch_alloc()). 746 747 The DUMP_TDEP function shall print out all target specific values. 748 Care should be taken to ensure that the function works in both the 749 multi-arch and non- multi-arch cases. */ 750 751struct gdbarch_list 752{ 753 struct gdbarch *gdbarch; 754 struct gdbarch_list *next; 755}; 756 757struct gdbarch_info 758{ 759 /* Use default: NULL (ZERO). */ 760 const struct bfd_arch_info *bfd_arch_info; 761 762 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ 763 int byte_order; 764 765 /* Use default: NULL (ZERO). */ 766 bfd *abfd; 767 768 /* Use default: NULL (ZERO). */ 769 struct gdbarch_tdep_info *tdep_info; 770 771 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ 772 enum gdb_osabi osabi; 773 774 /* Use default: NULL (ZERO). */ 775 const struct target_desc *target_desc; 776}; 777 778typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); 779typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); 780 781/* DEPRECATED - use gdbarch_register() */ 782extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); 783 784extern void gdbarch_register (enum bfd_architecture architecture, 785 gdbarch_init_ftype *, 786 gdbarch_dump_tdep_ftype *); 787 788 789/* Return a freshly allocated, NULL terminated, array of the valid 790 architecture names. Since architectures are registered during the 791 _initialize phase this function only returns useful information 792 once initialization has been completed. */ 793 794extern const char **gdbarch_printable_names (void); 795 796 797/* Helper function. Search the list of ARCHES for a GDBARCH that 798 matches the information provided by INFO. */ 799 800extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); 801 802 803/* Helper function. Create a preliminary ``struct gdbarch''. Perform 804 basic initialization using values obtained from the INFO and TDEP 805 parameters. set_gdbarch_*() functions are called to complete the 806 initialization of the object. */ 807 808extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); 809 810 811/* Helper function. Free a partially-constructed ``struct gdbarch''. 812 It is assumed that the caller freeds the ``struct 813 gdbarch_tdep''. */ 814 815extern void gdbarch_free (struct gdbarch *); 816 817 818/* Helper function. Allocate memory from the ``struct gdbarch'' 819 obstack. The memory is freed when the corresponding architecture 820 is also freed. */ 821 822extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); 823#define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) 824#define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) 825 826 827/* Helper function. Force an update of the current architecture. 828 829 The actual architecture selected is determined by INFO, ``(gdb) set 830 architecture'' et.al., the existing architecture and BFD's default 831 architecture. INFO should be initialized to zero and then selected 832 fields should be updated. 833 834 Returns non-zero if the update succeeds */ 835 836extern int gdbarch_update_p (struct gdbarch_info info); 837 838 839/* Helper function. Find an architecture matching info. 840 841 INFO should be initialized using gdbarch_info_init, relevant fields 842 set, and then finished using gdbarch_info_fill. 843 844 Returns the corresponding architecture, or NULL if no matching 845 architecture was found. "current_gdbarch" is not updated. */ 846 847extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); 848 849 850/* Helper function. Set the global "current_gdbarch" to "gdbarch". 851 852 FIXME: kettenis/20031124: Of the functions that follow, only 853 gdbarch_from_bfd is supposed to survive. The others will 854 dissappear since in the future GDB will (hopefully) be truly 855 multi-arch. However, for now we're still stuck with the concept of 856 a single active architecture. */ 857 858extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch); 859 860 861/* Register per-architecture data-pointer. 862 863 Reserve space for a per-architecture data-pointer. An identifier 864 for the reserved data-pointer is returned. That identifer should 865 be saved in a local static variable. 866 867 Memory for the per-architecture data shall be allocated using 868 gdbarch_obstack_zalloc. That memory will be deleted when the 869 corresponding architecture object is deleted. 870 871 When a previously created architecture is re-selected, the 872 per-architecture data-pointer for that previous architecture is 873 restored. INIT() is not re-called. 874 875 Multiple registrarants for any architecture are allowed (and 876 strongly encouraged). */ 877 878struct gdbarch_data; 879 880typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); 881extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); 882typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); 883extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); 884extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, 885 struct gdbarch_data *data, 886 void *pointer); 887 888extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); 889 890 891/* Set the dynamic target-system-dependent parameters (architecture, 892 byte-order, ...) using information found in the BFD */ 893 894extern void set_gdbarch_from_file (bfd *); 895 896 897/* Initialize the current architecture to the "first" one we find on 898 our list. */ 899 900extern void initialize_current_architecture (void); 901 902/* gdbarch trace variable */ 903extern int gdbarch_debug; 904 905extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); 906 907#endif 908