1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
7 2007, 2008, 2009 Free Software Foundation, Inc.
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 /* This file was created with the aid of ``gdbarch.sh''.
26 The Bourne shell script ``gdbarch.sh'' creates the files
27 ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
28 against the existing ``gdbarch.[hc]''. Any differences found
31 If editing this file, please also run gdbarch.sh and merge any
32 changes into that script. Conversely, when making sweeping changes
33 to this file, modifying gdbarch.sh and using its output may prove
45 struct minimal_symbol
;
49 struct disassemble_info
;
52 struct bp_target_info
;
54 struct displaced_step_closure
;
55 struct core_regset_section
;
59 struct stap_parse_info
;
61 /* The architecture associated with the inferior through the
62 connection to the target.
64 The architecture vector provides some information that is really a
65 property of the inferior, accessed through a particular target:
66 ptrace operations; the layout of certain RSP packets; the solib_ops
67 vector; etc. To differentiate architecture accesses to
68 per-inferior/target properties from
69 per-thread/per-frame/per-objfile properties, accesses to
70 per-inferior/target properties should be made through this
73 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
74 extern struct gdbarch
*target_gdbarch (void);
76 /* The initial, default architecture. It uses host values (for want of a better
78 extern struct gdbarch startup_gdbarch
;
81 /* Callback type for the 'iterate_over_objfiles_in_search_order'
84 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
85 (struct objfile
*objfile
, void *cb_data
);
88 /* The following are pre-initialized by GDBARCH. */
90 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
91 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
93 extern int gdbarch_byte_order (struct gdbarch
*gdbarch
);
94 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
96 extern int gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
97 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
99 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
100 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
102 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
103 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
106 /* The following are initialized by the target dependent code. */
108 /* The bit byte-order has to do just with numbering of bits in debugging symbols
109 and such. Conceptually, it's quite separate from byte/word byte order. */
111 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
112 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
114 /* Number of bits in a char or unsigned char for the target machine.
115 Just like CHAR_BIT in <limits.h> but describes the target machine.
116 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
118 Number of bits in a short or unsigned short for the target machine. */
120 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
121 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
123 /* Number of bits in an int or unsigned int for the target machine. */
125 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
126 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
128 /* Number of bits in a long or unsigned long for the target machine. */
130 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
131 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
133 /* Number of bits in a long long or unsigned long long for the target
136 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
137 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
139 /* Alignment of a long long or unsigned long long for the target
142 extern int gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
);
143 extern void set_gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
, int long_long_align_bit
);
145 /* The ABI default bit-size and format for "half", "float", "double", and
146 "long double". These bit/format pairs should eventually be combined
147 into a single object. For the moment, just initialize them as a pair.
148 Each format describes both the big and little endian layouts (if
151 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
152 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
154 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
155 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
157 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
158 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
160 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
161 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
163 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
164 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
166 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
167 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
169 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
170 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
172 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
173 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
175 /* For most targets, a pointer on the target and its representation as an
176 address in GDB have the same size and "look the same". For such a
177 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
178 / addr_bit will be set from it.
180 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
181 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
182 gdbarch_address_to_pointer as well.
184 ptr_bit is the size of a pointer on the target */
186 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
187 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
189 /* addr_bit is the size of a target address as represented in gdb */
191 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
192 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
194 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
195 info. For .debug_frame FDEs, this is supposed to be the target address
196 size from the associated CU header, and which is equivalent to the
197 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
198 Unfortunately there is no good way to determine this value. Therefore
199 dwarf2_addr_size simply defaults to the target pointer size.
201 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
202 defined using the target's pointer size so far.
204 Note that dwarf2_addr_size only needs to be redefined by a target if the
205 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
206 and if Dwarf versions < 4 need to be supported. */
208 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
209 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
211 /* One if `char' acts like `signed char', zero if `unsigned char'. */
213 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
214 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
216 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
218 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
219 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
220 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
222 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
224 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
225 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
226 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
228 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
229 whole scheme for dealing with "frames" and "frame pointers" needs a
230 serious shakedown. */
232 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
233 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
234 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
236 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
238 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
239 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
240 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
242 /* Read a register into a new struct value. If the register is wholly
243 or partly unavailable, this should call mark_value_bytes_unavailable
244 as appropriate. If this is defined, then pseudo_register_read will
247 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
249 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
250 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
251 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
253 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
255 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
256 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
257 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
259 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
260 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
262 /* This macro gives the number of pseudo-registers that live in the
263 register namespace but do not get fetched or stored on the target.
264 These pseudo-registers may be aliases for other registers,
265 combinations of other registers, or they may be computed by GDB. */
267 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
268 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
270 /* Assemble agent expression bytecode to collect pseudo-register REG.
271 Return -1 if something goes wrong, 0 otherwise. */
273 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
275 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
276 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
277 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
279 /* Assemble agent expression bytecode to push the value of pseudo-register
280 REG on the interpreter stack.
281 Return -1 if something goes wrong, 0 otherwise. */
283 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
285 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
286 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
287 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
289 /* GDB's standard (or well known) register numbers. These can map onto
290 a real register or a pseudo (computed) register or not be defined at
292 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
294 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
295 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
297 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
298 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
300 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
301 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
303 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
304 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
306 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
308 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
309 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
310 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
312 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
314 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
315 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
316 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
318 /* Convert from an sdb register number to an internal gdb register number. */
320 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
321 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
322 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
324 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
326 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
327 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
328 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
330 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
331 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
332 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
334 /* Return the type of a register specified by the architecture. Only
335 the register cache should call this function directly; others should
336 use "register_type". */
338 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
340 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
341 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
342 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
344 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
346 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
348 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
349 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
350 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
352 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
353 deprecated_fp_regnum. */
355 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
356 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
358 /* See gdbint.texinfo. See infcall.c. */
360 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
362 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
);
363 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
);
364 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
366 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
367 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
369 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
371 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
);
372 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
);
373 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
375 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
376 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
377 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
379 extern int gdbarch_print_float_info_p (struct gdbarch
*gdbarch
);
381 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
382 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
383 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
385 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
387 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
388 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
389 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
391 /* MAP a GDB RAW register number onto a simulator register number. See
392 also include/...-sim.h. */
394 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
395 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
396 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
398 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
399 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
400 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
402 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
403 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
404 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
406 /* setjmp/longjmp support. */
408 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
410 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
411 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
412 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
414 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
415 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
417 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
418 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
419 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
421 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
422 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
);
423 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
425 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
426 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
427 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
429 /* Construct a value representing the contents of register REGNUM in
430 frame FRAME, interpreted as type TYPE. The routine needs to
431 allocate and return a struct value with all value attributes
432 (but not the value contents) filled in. */
434 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct type
*type
, int regnum
, struct frame_info
*frame
);
435 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_info
*frame
);
436 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
438 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
439 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
440 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
442 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
443 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
444 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
446 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
448 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
449 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
450 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
452 /* Return the return-value convention that will be used by FUNCTION
453 to return a value of type VALTYPE. FUNCTION may be NULL in which
454 case the return convention is computed based only on VALTYPE.
456 If READBUF is not NULL, extract the return value and save it in this buffer.
458 If WRITEBUF is not NULL, it contains a return value which will be
459 stored into the appropriate register. This can be used when we want
460 to force the value returned by a function (see the "return" command
463 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
465 typedef enum return_value_convention (gdbarch_return_value_ftype
) (struct gdbarch
*gdbarch
, struct value
*function
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
466 extern enum return_value_convention
gdbarch_return_value (struct gdbarch
*gdbarch
, struct value
*function
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
467 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
469 /* Return true if the return value of function is stored in the first hidden
470 parameter. In theory, this feature should be language-dependent, specified
471 by language and its ABI, such as C++. Unfortunately, compiler may
472 implement it to a target-dependent feature. So that we need such hook here
473 to be aware of this in GDB. */
475 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
476 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
477 extern void set_gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, gdbarch_return_in_first_hidden_param_p_ftype
*return_in_first_hidden_param_p
);
479 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
480 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
481 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
483 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
485 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
486 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
487 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
489 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
490 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
491 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
493 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
494 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
495 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
497 /* Return the adjusted address and kind to use for Z0/Z1 packets.
498 KIND is usually the memory length of the breakpoint, but may have a
499 different target-specific meaning. */
501 typedef void (gdbarch_remote_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
502 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
503 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_remote_breakpoint_from_pc_ftype
*remote_breakpoint_from_pc
);
505 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
507 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
508 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
509 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
511 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
512 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
513 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
515 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
516 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
517 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
519 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
520 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
522 /* A function can be addressed by either it's "pointer" (possibly a
523 descriptor address) or "entry point" (first executable instruction).
524 The method "convert_from_func_ptr_addr" converting the former to the
525 latter. gdbarch_deprecated_function_start_offset is being used to implement
526 a simplified subset of that functionality - the function's address
527 corresponds to the "function pointer" and the function's start
528 corresponds to the "function entry point" - and hence is redundant. */
530 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
531 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
533 /* Return the remote protocol register number associated with this
534 register. Normally the identity mapping. */
536 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
537 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
538 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
540 /* Fetch the target specific address used to represent a load module. */
542 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
544 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
545 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
546 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
548 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
549 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
551 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
553 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
554 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
555 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
557 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
559 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
560 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
561 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
563 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
564 frame-base. Enable frame-base before frame-unwind. */
566 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
568 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
569 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
570 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
572 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
574 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
575 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
576 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
578 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
579 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
580 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
582 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
583 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
585 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
586 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
587 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
589 /* On some machines there are bits in addresses which are not really
590 part of the address, but are used by the kernel, the hardware, etc.
591 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
592 we get a "real" address such as one would find in a symbol table.
593 This is used only for addresses of instructions, and even then I'm
594 not sure it's used in all contexts. It exists to deal with there
595 being a few stray bits in the PC which would mislead us, not as some
596 sort of generic thing to handle alignment or segmentation (it's
597 possible it should be in TARGET_READ_PC instead). */
599 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
600 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
601 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
603 /* It is not at all clear why gdbarch_smash_text_address is not folded into
604 gdbarch_addr_bits_remove. */
606 typedef CORE_ADDR (gdbarch_smash_text_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
607 extern CORE_ADDR
gdbarch_smash_text_address (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
608 extern void set_gdbarch_smash_text_address (struct gdbarch
*gdbarch
, gdbarch_smash_text_address_ftype
*smash_text_address
);
610 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
611 indicates if the target needs software single step. An ISA method to
614 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
615 breakpoints using the breakpoint system instead of blatting memory directly
618 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
619 target can single step. If not, then implement single step using breakpoints.
621 A return value of 1 means that the software_single_step breakpoints
622 were inserted; 0 means they were not. */
624 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
626 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
627 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
628 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
630 /* Return non-zero if the processor is executing a delay slot and a
631 further single-step is needed before the instruction finishes. */
633 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
635 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
636 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
637 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
639 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
640 disassembler. Perhaps objdump can handle it? */
642 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
643 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
644 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
646 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
647 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
648 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
650 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
651 evaluates non-zero, this is the address where the debugger will place
652 a step-resume breakpoint to get us past the dynamic linker. */
654 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
655 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
656 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
658 /* Some systems also have trampoline code for returning from shared libs. */
660 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
661 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
662 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
664 /* A target might have problems with watchpoints as soon as the stack
665 frame of the current function has been destroyed. This mostly happens
666 as the first action in a funtion's epilogue. in_function_epilogue_p()
667 is defined to return a non-zero value if either the given addr is one
668 instruction after the stack destroying instruction up to the trailing
669 return instruction or if we can figure out that the stack frame has
670 already been invalidated regardless of the value of addr. Targets
671 which don't suffer from that problem could just let this functionality
674 typedef int (gdbarch_in_function_epilogue_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
675 extern int gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
676 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, gdbarch_in_function_epilogue_p_ftype
*in_function_epilogue_p
);
678 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
679 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
680 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
682 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
683 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
684 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
686 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
687 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
689 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
690 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
692 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
694 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
695 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
696 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
698 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
700 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
701 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
702 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
);
704 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
706 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
707 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
708 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
);
710 /* Is a register in a group */
712 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
713 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
714 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
716 /* Fetch the pointer to the ith function argument. */
718 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
720 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
721 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
722 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
724 /* Return the appropriate register set for a core file section with
725 name SECT_NAME and size SECT_SIZE. */
727 extern int gdbarch_regset_from_core_section_p (struct gdbarch
*gdbarch
);
729 typedef const struct regset
* (gdbarch_regset_from_core_section_ftype
) (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
730 extern const struct regset
* gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
731 extern void set_gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, gdbarch_regset_from_core_section_ftype
*regset_from_core_section
);
733 /* Supported register notes in a core file. */
735 extern struct core_regset_section
* gdbarch_core_regset_sections (struct gdbarch
*gdbarch
);
736 extern void set_gdbarch_core_regset_sections (struct gdbarch
*gdbarch
, struct core_regset_section
* core_regset_sections
);
738 /* Create core file notes */
740 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
742 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
743 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
744 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
746 /* Find core file memory regions */
748 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
750 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
751 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
752 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
754 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
755 core file into buffer READBUF with length LEN. */
757 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
759 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
760 extern LONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
761 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
763 /* How the core target converts a PTID from a core file to a string. */
765 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
767 typedef char * (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
768 extern char * gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
769 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
771 /* BFD target to use when generating a core file. */
773 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
775 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
776 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
778 /* If the elements of C++ vtables are in-place function descriptors rather
779 than normal function pointers (which may point to code or a descriptor),
782 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
783 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
785 /* Set if the least significant bit of the delta is used instead of the least
786 significant bit of the pfn for pointers to virtual member functions. */
788 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
789 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
791 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
793 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch
*gdbarch
);
795 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
796 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
797 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
799 /* The maximum length of an instruction on this architecture in bytes. */
801 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
803 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
804 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
806 /* Copy the instruction at FROM to TO, and make any adjustments
807 necessary to single-step it at that address.
809 REGS holds the state the thread's registers will have before
810 executing the copied instruction; the PC in REGS will refer to FROM,
811 not the copy at TO. The caller should update it to point at TO later.
813 Return a pointer to data of the architecture's choice to be passed
814 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
815 the instruction's effects have been completely simulated, with the
816 resulting state written back to REGS.
818 For a general explanation of displaced stepping and how GDB uses it,
819 see the comments in infrun.c.
821 The TO area is only guaranteed to have space for
822 gdbarch_max_insn_length (arch) bytes, so this function must not
823 write more bytes than that to that area.
825 If you do not provide this function, GDB assumes that the
826 architecture does not support displaced stepping.
828 If your architecture doesn't need to adjust instructions before
829 single-stepping them, consider using simple_displaced_step_copy_insn
832 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
834 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
835 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
836 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
838 /* Return true if GDB should use hardware single-stepping to execute
839 the displaced instruction identified by CLOSURE. If false,
840 GDB will simply restart execution at the displaced instruction
841 location, and it is up to the target to ensure GDB will receive
842 control again (e.g. by placing a software breakpoint instruction
843 into the displaced instruction buffer).
845 The default implementation returns false on all targets that
846 provide a gdbarch_software_single_step routine, and true otherwise. */
848 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
849 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
850 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
852 /* Fix up the state resulting from successfully single-stepping a
853 displaced instruction, to give the result we would have gotten from
854 stepping the instruction in its original location.
856 REGS is the register state resulting from single-stepping the
857 displaced instruction.
859 CLOSURE is the result from the matching call to
860 gdbarch_displaced_step_copy_insn.
862 If you provide gdbarch_displaced_step_copy_insn.but not this
863 function, then GDB assumes that no fixup is needed after
864 single-stepping the instruction.
866 For a general explanation of displaced stepping and how GDB uses it,
867 see the comments in infrun.c. */
869 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
871 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
872 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
873 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
875 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
877 If you provide gdbarch_displaced_step_copy_insn, you must provide
878 this function as well.
880 If your architecture uses closures that don't need to be freed, then
881 you can use simple_displaced_step_free_closure here.
883 For a general explanation of displaced stepping and how GDB uses it,
884 see the comments in infrun.c. */
886 typedef void (gdbarch_displaced_step_free_closure_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
887 extern void gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
888 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, gdbarch_displaced_step_free_closure_ftype
*displaced_step_free_closure
);
890 /* Return the address of an appropriate place to put displaced
891 instructions while we step over them. There need only be one such
892 place, since we're only stepping one thread over a breakpoint at a
895 For a general explanation of displaced stepping and how GDB uses it,
896 see the comments in infrun.c. */
898 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
899 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
900 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
902 /* Relocate an instruction to execute at a different address. OLDLOC
903 is the address in the inferior memory where the instruction to
904 relocate is currently at. On input, TO points to the destination
905 where we want the instruction to be copied (and possibly adjusted)
906 to. On output, it points to one past the end of the resulting
907 instruction(s). The effect of executing the instruction at TO shall
908 be the same as if executing it at FROM. For example, call
909 instructions that implicitly push the return address on the stack
910 should be adjusted to return to the instruction after OLDLOC;
911 relative branches, and other PC-relative instructions need the
912 offset adjusted; etc. */
914 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
916 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
917 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
918 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
920 /* Refresh overlay mapped state for section OSECT. */
922 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
924 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
925 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
926 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
928 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
930 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
931 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
932 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
934 /* Handle special encoding of static variables in stabs debug info. */
936 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
938 typedef const char * (gdbarch_static_transform_name_ftype
) (const char *name
);
939 extern const char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, const char *name
);
940 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
942 /* Set if the address in N_SO or N_FUN stabs may be zero. */
944 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
945 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
947 /* Parse the instruction at ADDR storing in the record execution log
948 the registers REGCACHE and memory ranges that will be affected when
949 the instruction executes, along with their current values.
950 Return -1 if something goes wrong, 0 otherwise. */
952 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
954 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
955 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
956 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
958 /* Save process state after a signal.
959 Return -1 if something goes wrong, 0 otherwise. */
961 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
963 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
964 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
965 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
967 /* Signal translation: translate inferior's signal (target's) number
968 into GDB's representation. The implementation of this method must
969 be host independent. IOW, don't rely on symbols of the NAT_FILE
970 header (the nm-*.h files), the host <signal.h> header, or similar
971 headers. This is mainly used when cross-debugging core files ---
972 "Live" targets hide the translation behind the target interface
973 (target_wait, target_resume, etc.). */
975 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
977 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
978 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
979 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
981 /* Extra signal info inspection.
983 Return a type suitable to inspect extra signal information. */
985 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
987 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
988 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
989 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
991 /* Record architecture-specific information from the symbol table. */
993 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
995 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
996 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
997 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
999 /* Function for the 'catch syscall' feature.
1000 Get architecture-specific system calls information from registers. */
1002 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1004 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
1005 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, ptid_t ptid
);
1006 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1008 /* SystemTap related fields and functions.
1009 Prefix used to mark an integer constant on the architecture's assembly
1010 For example, on x86 integer constants are written as:
1012 $10 ;; integer constant 10
1014 in this case, this prefix would be the character `$'. */
1016 extern const char * gdbarch_stap_integer_prefix (struct gdbarch
*gdbarch
);
1017 extern void set_gdbarch_stap_integer_prefix (struct gdbarch
*gdbarch
, const char * stap_integer_prefix
);
1019 /* Suffix used to mark an integer constant on the architecture's assembly. */
1021 extern const char * gdbarch_stap_integer_suffix (struct gdbarch
*gdbarch
);
1022 extern void set_gdbarch_stap_integer_suffix (struct gdbarch
*gdbarch
, const char * stap_integer_suffix
);
1024 /* Prefix used to mark a register name on the architecture's assembly.
1025 For example, on x86 the register name is written as:
1027 %eax ;; register eax
1029 in this case, this prefix would be the character `%'. */
1031 extern const char * gdbarch_stap_register_prefix (struct gdbarch
*gdbarch
);
1032 extern void set_gdbarch_stap_register_prefix (struct gdbarch
*gdbarch
, const char * stap_register_prefix
);
1034 /* Suffix used to mark a register name on the architecture's assembly */
1036 extern const char * gdbarch_stap_register_suffix (struct gdbarch
*gdbarch
);
1037 extern void set_gdbarch_stap_register_suffix (struct gdbarch
*gdbarch
, const char * stap_register_suffix
);
1039 /* Prefix used to mark a register indirection on the architecture's assembly.
1040 For example, on x86 the register indirection is written as:
1042 (%eax) ;; indirecting eax
1044 in this case, this prefix would be the charater `('.
1046 Please note that we use the indirection prefix also for register
1047 displacement, e.g., `4(%eax)' on x86. */
1049 extern const char * gdbarch_stap_register_indirection_prefix (struct gdbarch
*gdbarch
);
1050 extern void set_gdbarch_stap_register_indirection_prefix (struct gdbarch
*gdbarch
, const char * stap_register_indirection_prefix
);
1052 /* Suffix used to mark a register indirection on the architecture's assembly.
1053 For example, on x86 the register indirection is written as:
1055 (%eax) ;; indirecting eax
1057 in this case, this prefix would be the charater `)'.
1059 Please note that we use the indirection suffix also for register
1060 displacement, e.g., `4(%eax)' on x86. */
1062 extern const char * gdbarch_stap_register_indirection_suffix (struct gdbarch
*gdbarch
);
1063 extern void set_gdbarch_stap_register_indirection_suffix (struct gdbarch
*gdbarch
, const char * stap_register_indirection_suffix
);
1065 /* Prefix used to name a register using GDB's nomenclature.
1067 For example, on PPC a register is represented by a number in the assembly
1068 language (e.g., `10' is the 10th general-purpose register). However,
1069 inside GDB this same register has an `r' appended to its name, so the 10th
1070 register would be represented as `r10' internally. */
1072 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1073 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1075 /* Suffix used to name a register using GDB's nomenclature. */
1077 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1078 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1080 /* Check if S is a single operand.
1082 Single operands can be:
1083 - Literal integers, e.g. `$10' on x86
1084 - Register access, e.g. `%eax' on x86
1085 - Register indirection, e.g. `(%eax)' on x86
1086 - Register displacement, e.g. `4(%eax)' on x86
1088 This function should check for these patterns on the string
1089 and return 1 if some were found, or zero otherwise. Please try to match
1090 as much info as you can from the string, i.e., if you have to match
1091 something like `(%', do not match just the `('. */
1093 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1095 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1096 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1097 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1099 /* Function used to handle a "special case" in the parser.
1101 A "special case" is considered to be an unknown token, i.e., a token
1102 that the parser does not know how to parse. A good example of special
1103 case would be ARM's register displacement syntax:
1105 [R0, #4] ;; displacing R0 by 4
1107 Since the parser assumes that a register displacement is of the form:
1109 <number> <indirection_prefix> <register_name> <indirection_suffix>
1111 it means that it will not be able to recognize and parse this odd syntax.
1112 Therefore, we should add a special case function that will handle this token.
1114 This function should generate the proper expression form of the expression
1115 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1116 and so on). It should also return 1 if the parsing was successful, or zero
1117 if the token was not recognized as a special token (in this case, returning
1118 zero means that the special parser is deferring the parsing to the generic
1119 parser), and should advance the buffer pointer (p->arg). */
1121 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1123 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1124 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1125 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1127 /* True if the list of shared libraries is one and only for all
1128 processes, as opposed to a list of shared libraries per inferior.
1129 This usually means that all processes, although may or may not share
1130 an address space, will see the same set of symbols at the same
1133 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1134 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1136 /* On some targets, even though each inferior has its own private
1137 address space, the debug interface takes care of making breakpoints
1138 visible to all address spaces automatically. For such cases,
1139 this property should be set to true. */
1141 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1142 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1144 /* True if inferiors share an address space (e.g., uClinux). */
1146 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1147 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1148 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1150 /* True if a fast tracepoint can be set at an address. */
1152 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int *isize
, char **msg
);
1153 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int *isize
, char **msg
);
1154 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1156 /* Return the "auto" target charset. */
1158 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1159 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1160 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1162 /* Return the "auto" target wide charset. */
1164 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1165 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1166 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1168 /* If non-empty, this is a file extension that will be opened in place
1169 of the file extension reported by the shared library list.
1171 This is most useful for toolchains that use a post-linker tool,
1172 where the names of the files run on the target differ in extension
1173 compared to the names of the files GDB should load for debug info. */
1175 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1176 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1178 /* If true, the target OS has DOS-based file system semantics. That
1179 is, absolute paths include a drive name, and the backslash is
1180 considered a directory separator. */
1182 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1183 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1185 /* Generate bytecodes to collect the return address in a frame.
1186 Since the bytecodes run on the target, possibly with GDB not even
1187 connected, the full unwinding machinery is not available, and
1188 typically this function will issue bytecodes for one or more likely
1189 places that the return address may be found. */
1191 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1192 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1193 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1195 /* Implement the "info proc" command. */
1197 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1199 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, char *args
, enum info_proc_what what
);
1200 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, char *args
, enum info_proc_what what
);
1201 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1203 /* Iterate over all objfiles in the order that makes the most sense
1204 for the architecture to make global symbol searches.
1206 CB is a callback function where OBJFILE is the objfile to be searched,
1207 and CB_DATA a pointer to user-defined data (the same data that is passed
1208 when calling this gdbarch method). The iteration stops if this function
1211 CB_DATA is a pointer to some user-defined data to be passed to
1214 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1215 inspected when the symbol search was requested. */
1217 typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype
) (struct gdbarch
*gdbarch
, iterate_over_objfiles_in_search_order_cb_ftype
*cb
, void *cb_data
, struct objfile
*current_objfile
);
1218 extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch
*gdbarch
, iterate_over_objfiles_in_search_order_cb_ftype
*cb
, void *cb_data
, struct objfile
*current_objfile
);
1219 extern void set_gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch
*gdbarch
, gdbarch_iterate_over_objfiles_in_search_order_ftype
*iterate_over_objfiles_in_search_order
);
1221 /* Definition for an unknown syscall, used basically in error-cases. */
1222 #define UNKNOWN_SYSCALL (-1)
1224 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1227 /* Mechanism for co-ordinating the selection of a specific
1230 GDB targets (*-tdep.c) can register an interest in a specific
1231 architecture. Other GDB components can register a need to maintain
1232 per-architecture data.
1234 The mechanisms below ensures that there is only a loose connection
1235 between the set-architecture command and the various GDB
1236 components. Each component can independently register their need
1237 to maintain architecture specific data with gdbarch.
1241 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1244 The more traditional mega-struct containing architecture specific
1245 data for all the various GDB components was also considered. Since
1246 GDB is built from a variable number of (fairly independent)
1247 components it was determined that the global aproach was not
1251 /* Register a new architectural family with GDB.
1253 Register support for the specified ARCHITECTURE with GDB. When
1254 gdbarch determines that the specified architecture has been
1255 selected, the corresponding INIT function is called.
1259 The INIT function takes two parameters: INFO which contains the
1260 information available to gdbarch about the (possibly new)
1261 architecture; ARCHES which is a list of the previously created
1262 ``struct gdbarch'' for this architecture.
1264 The INFO parameter is, as far as possible, be pre-initialized with
1265 information obtained from INFO.ABFD or the global defaults.
1267 The ARCHES parameter is a linked list (sorted most recently used)
1268 of all the previously created architures for this architecture
1269 family. The (possibly NULL) ARCHES->gdbarch can used to access
1270 values from the previously selected architecture for this
1271 architecture family.
1273 The INIT function shall return any of: NULL - indicating that it
1274 doesn't recognize the selected architecture; an existing ``struct
1275 gdbarch'' from the ARCHES list - indicating that the new
1276 architecture is just a synonym for an earlier architecture (see
1277 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1278 - that describes the selected architecture (see gdbarch_alloc()).
1280 The DUMP_TDEP function shall print out all target specific values.
1281 Care should be taken to ensure that the function works in both the
1282 multi-arch and non- multi-arch cases. */
1286 struct gdbarch
*gdbarch
;
1287 struct gdbarch_list
*next
;
1292 /* Use default: NULL (ZERO). */
1293 const struct bfd_arch_info
*bfd_arch_info
;
1295 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1298 int byte_order_for_code
;
1300 /* Use default: NULL (ZERO). */
1303 /* Use default: NULL (ZERO). */
1304 struct gdbarch_tdep_info
*tdep_info
;
1306 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1307 enum gdb_osabi osabi
;
1309 /* Use default: NULL (ZERO). */
1310 const struct target_desc
*target_desc
;
1313 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1314 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1316 /* DEPRECATED - use gdbarch_register() */
1317 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1319 extern void gdbarch_register (enum bfd_architecture architecture
,
1320 gdbarch_init_ftype
*,
1321 gdbarch_dump_tdep_ftype
*);
1324 /* Return a freshly allocated, NULL terminated, array of the valid
1325 architecture names. Since architectures are registered during the
1326 _initialize phase this function only returns useful information
1327 once initialization has been completed. */
1329 extern const char **gdbarch_printable_names (void);
1332 /* Helper function. Search the list of ARCHES for a GDBARCH that
1333 matches the information provided by INFO. */
1335 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1338 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1339 basic initialization using values obtained from the INFO and TDEP
1340 parameters. set_gdbarch_*() functions are called to complete the
1341 initialization of the object. */
1343 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1346 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1347 It is assumed that the caller freeds the ``struct
1350 extern void gdbarch_free (struct gdbarch
*);
1353 /* Helper function. Allocate memory from the ``struct gdbarch''
1354 obstack. The memory is freed when the corresponding architecture
1357 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
1358 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1359 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1362 /* Helper function. Force an update of the current architecture.
1364 The actual architecture selected is determined by INFO, ``(gdb) set
1365 architecture'' et.al., the existing architecture and BFD's default
1366 architecture. INFO should be initialized to zero and then selected
1367 fields should be updated.
1369 Returns non-zero if the update succeeds. */
1371 extern int gdbarch_update_p (struct gdbarch_info info
);
1374 /* Helper function. Find an architecture matching info.
1376 INFO should be initialized using gdbarch_info_init, relevant fields
1377 set, and then finished using gdbarch_info_fill.
1379 Returns the corresponding architecture, or NULL if no matching
1380 architecture was found. */
1382 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1385 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1387 FIXME: kettenis/20031124: Of the functions that follow, only
1388 gdbarch_from_bfd is supposed to survive. The others will
1389 dissappear since in the future GDB will (hopefully) be truly
1390 multi-arch. However, for now we're still stuck with the concept of
1391 a single active architecture. */
1393 extern void deprecated_target_gdbarch_select_hack (struct gdbarch
*gdbarch
);
1396 /* Register per-architecture data-pointer.
1398 Reserve space for a per-architecture data-pointer. An identifier
1399 for the reserved data-pointer is returned. That identifer should
1400 be saved in a local static variable.
1402 Memory for the per-architecture data shall be allocated using
1403 gdbarch_obstack_zalloc. That memory will be deleted when the
1404 corresponding architecture object is deleted.
1406 When a previously created architecture is re-selected, the
1407 per-architecture data-pointer for that previous architecture is
1408 restored. INIT() is not re-called.
1410 Multiple registrarants for any architecture are allowed (and
1411 strongly encouraged). */
1413 struct gdbarch_data
;
1415 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1416 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1417 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1418 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1419 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1420 struct gdbarch_data
*data
,
1423 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1426 /* Set the dynamic target-system-dependent parameters (architecture,
1427 byte-order, ...) using information found in the BFD. */
1429 extern void set_gdbarch_from_file (bfd
*);
1432 /* Initialize the current architecture to the "first" one we find on
1435 extern void initialize_current_architecture (void);
1437 /* gdbarch trace variable */
1438 extern unsigned int gdbarch_debug
;
1440 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);