1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2015 Free Software Foundation, Inc.
8 This file is part of GDB.
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.
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.
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/>. */
23 /* This file was created with the aid of ``gdbarch.sh''.
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
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
45 struct minimal_symbol
;
49 struct disassemble_info
;
52 struct bp_target_info
;
56 struct displaced_step_closure
;
57 struct core_regset_section
;
61 struct stap_parse_info
;
63 struct ravenscar_arch_ops
;
64 struct elf_internal_linux_prpsinfo
;
68 /* The architecture associated with the inferior through the
69 connection to the target.
71 The architecture vector provides some information that is really a
72 property of the inferior, accessed through a particular target:
73 ptrace operations; the layout of certain RSP packets; the solib_ops
74 vector; etc. To differentiate architecture accesses to
75 per-inferior/target properties from
76 per-thread/per-frame/per-objfile properties, accesses to
77 per-inferior/target properties should be made through this
80 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
81 extern struct gdbarch
*target_gdbarch (void);
83 /* Callback type for the 'iterate_over_objfiles_in_search_order'
86 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
87 (struct objfile
*objfile
, void *cb_data
);
89 /* Callback type for regset section iterators. The callback usually
90 invokes the REGSET's supply or collect method, to which it must
91 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
92 section name, and HUMAN_NAME is used for diagnostic messages.
93 CB_DATA should have been passed unchanged through the iterator. */
95 typedef void (iterate_over_regset_sections_cb
)
96 (const char *sect_name
, int size
, const struct regset
*regset
,
97 const char *human_name
, void *cb_data
);
100 /* The following are pre-initialized by GDBARCH. */
102 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
103 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
105 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
106 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
108 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
109 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
111 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
112 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
114 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
115 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
118 /* The following are initialized by the target dependent code. */
120 /* The bit byte-order has to do just with numbering of bits in debugging symbols
121 and such. Conceptually, it's quite separate from byte/word byte order. */
123 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
124 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
126 /* Number of bits in a char or unsigned char for the target machine.
127 Just like CHAR_BIT in <limits.h> but describes the target machine.
128 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
130 Number of bits in a short or unsigned short for the target machine. */
132 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
133 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
135 /* Number of bits in an int or unsigned int for the target machine. */
137 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
138 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
140 /* Number of bits in a long or unsigned long for the target machine. */
142 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
143 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
145 /* Number of bits in a long long or unsigned long long for the target
148 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
149 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
151 /* Alignment of a long long or unsigned long long for the target
154 extern int gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
);
155 extern void set_gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
, int long_long_align_bit
);
157 /* The ABI default bit-size and format for "half", "float", "double", and
158 "long double". These bit/format pairs should eventually be combined
159 into a single object. For the moment, just initialize them as a pair.
160 Each format describes both the big and little endian layouts (if
163 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
164 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
166 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
167 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
169 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
170 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
172 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
173 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
175 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
176 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
178 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
179 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
181 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
182 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
184 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
185 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
187 /* For most targets, a pointer on the target and its representation as an
188 address in GDB have the same size and "look the same". For such a
189 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
190 / addr_bit will be set from it.
192 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
193 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
194 gdbarch_address_to_pointer as well.
196 ptr_bit is the size of a pointer on the target */
198 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
199 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
201 /* addr_bit is the size of a target address as represented in gdb */
203 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
204 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
206 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
207 info. For .debug_frame FDEs, this is supposed to be the target address
208 size from the associated CU header, and which is equivalent to the
209 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
210 Unfortunately there is no good way to determine this value. Therefore
211 dwarf2_addr_size simply defaults to the target pointer size.
213 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
214 defined using the target's pointer size so far.
216 Note that dwarf2_addr_size only needs to be redefined by a target if the
217 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
218 and if Dwarf versions < 4 need to be supported. */
220 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
221 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
223 /* One if `char' acts like `signed char', zero if `unsigned char'. */
225 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
226 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
228 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
230 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
231 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
232 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
234 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
236 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
237 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
238 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
240 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
241 whole scheme for dealing with "frames" and "frame pointers" needs a
242 serious shakedown. */
244 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
245 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
246 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
248 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
250 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
251 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
252 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
254 /* Read a register into a new struct value. If the register is wholly
255 or partly unavailable, this should call mark_value_bytes_unavailable
256 as appropriate. If this is defined, then pseudo_register_read will
259 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
261 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
262 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
263 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
265 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
267 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
268 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
269 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
271 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
272 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
274 /* This macro gives the number of pseudo-registers that live in the
275 register namespace but do not get fetched or stored on the target.
276 These pseudo-registers may be aliases for other registers,
277 combinations of other registers, or they may be computed by GDB. */
279 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
280 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
282 /* Assemble agent expression bytecode to collect pseudo-register REG.
283 Return -1 if something goes wrong, 0 otherwise. */
285 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
287 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
288 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
289 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
291 /* Assemble agent expression bytecode to push the value of pseudo-register
292 REG on the interpreter stack.
293 Return -1 if something goes wrong, 0 otherwise. */
295 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
297 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
298 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
299 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
301 /* GDB's standard (or well known) register numbers. These can map onto
302 a real register or a pseudo (computed) register or not be defined at
304 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
306 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
307 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
309 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
310 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
312 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
313 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
315 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
316 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
318 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
320 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
321 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
322 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
324 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
326 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
327 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
328 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
330 /* Convert from an sdb register number to an internal gdb register number. */
332 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
333 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
334 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
336 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
338 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
339 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
340 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
342 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
343 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
344 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
346 /* Return the type of a register specified by the architecture. Only
347 the register cache should call this function directly; others should
348 use "register_type". */
350 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
352 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
353 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
354 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
356 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
358 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
359 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
360 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
362 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
363 deprecated_fp_regnum. */
365 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
366 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
368 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
370 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
);
371 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
);
372 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
374 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
375 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
377 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
379 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
);
380 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
);
381 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
383 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
384 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
385 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
387 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
388 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
389 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
391 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
393 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
394 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
395 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
397 /* MAP a GDB RAW register number onto a simulator register number. See
398 also include/...-sim.h. */
400 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
401 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
402 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
404 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
405 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
406 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
408 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
409 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
410 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
412 /* Determine the address where a longjmp will land and save this address
413 in PC. Return nonzero on success.
415 FRAME corresponds to the longjmp frame. */
417 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
419 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
420 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
421 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
423 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
424 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
426 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
427 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
428 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
430 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
431 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
);
432 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
434 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
435 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
436 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
438 /* Construct a value representing the contents of register REGNUM in
439 frame FRAME_ID, interpreted as type TYPE. The routine needs to
440 allocate and return a struct value with all value attributes
441 (but not the value contents) filled in. */
443 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
444 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
445 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
447 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
448 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
449 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
451 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
452 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
453 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
455 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
457 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
458 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
459 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
461 /* Return the return-value convention that will be used by FUNCTION
462 to return a value of type VALTYPE. FUNCTION may be NULL in which
463 case the return convention is computed based only on VALTYPE.
465 If READBUF is not NULL, extract the return value and save it in this buffer.
467 If WRITEBUF is not NULL, it contains a return value which will be
468 stored into the appropriate register. This can be used when we want
469 to force the value returned by a function (see the "return" command
472 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
474 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
);
475 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
);
476 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
478 /* Return true if the return value of function is stored in the first hidden
479 parameter. In theory, this feature should be language-dependent, specified
480 by language and its ABI, such as C++. Unfortunately, compiler may
481 implement it to a target-dependent feature. So that we need such hook here
482 to be aware of this in GDB. */
484 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
485 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
486 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
);
488 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
489 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
490 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
492 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
494 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
495 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
496 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
498 /* On some platforms, a single function may provide multiple entry points,
499 e.g. one that is used for function-pointer calls and a different one
500 that is used for direct function calls.
501 In order to ensure that breakpoints set on the function will trigger
502 no matter via which entry point the function is entered, a platform
503 may provide the skip_entrypoint callback. It is called with IP set
504 to the main entry point of a function (as determined by the symbol table),
505 and should return the address of the innermost entry point, where the
506 actual breakpoint needs to be set. Note that skip_entrypoint is used
507 by GDB common code even when debugging optimized code, where skip_prologue
510 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
512 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
513 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
514 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
516 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
517 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
518 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
520 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
521 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
522 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
524 /* Return the adjusted address and kind to use for Z0/Z1 packets.
525 KIND is usually the memory length of the breakpoint, but may have a
526 different target-specific meaning. */
528 typedef void (gdbarch_remote_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
529 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
530 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_remote_breakpoint_from_pc_ftype
*remote_breakpoint_from_pc
);
532 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
534 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
535 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
536 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
538 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
539 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
540 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
542 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
543 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
544 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
546 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
547 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
549 /* A function can be addressed by either it's "pointer" (possibly a
550 descriptor address) or "entry point" (first executable instruction).
551 The method "convert_from_func_ptr_addr" converting the former to the
552 latter. gdbarch_deprecated_function_start_offset is being used to implement
553 a simplified subset of that functionality - the function's address
554 corresponds to the "function pointer" and the function's start
555 corresponds to the "function entry point" - and hence is redundant. */
557 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
558 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
560 /* Return the remote protocol register number associated with this
561 register. Normally the identity mapping. */
563 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
564 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
565 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
567 /* Fetch the target specific address used to represent a load module. */
569 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
571 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
572 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
573 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
575 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
576 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
578 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
580 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
581 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
582 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
584 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
586 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
587 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
588 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
590 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
591 frame-base. Enable frame-base before frame-unwind. */
593 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
595 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
596 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
597 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
599 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
601 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
602 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
603 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
605 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
606 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
607 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
609 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
610 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
612 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
613 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
614 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
616 /* On some machines there are bits in addresses which are not really
617 part of the address, but are used by the kernel, the hardware, etc.
618 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
619 we get a "real" address such as one would find in a symbol table.
620 This is used only for addresses of instructions, and even then I'm
621 not sure it's used in all contexts. It exists to deal with there
622 being a few stray bits in the PC which would mislead us, not as some
623 sort of generic thing to handle alignment or segmentation (it's
624 possible it should be in TARGET_READ_PC instead). */
626 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
627 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
628 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
630 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
631 indicates if the target needs software single step. An ISA method to
634 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
635 breakpoints using the breakpoint system instead of blatting memory directly
638 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
639 target can single step. If not, then implement single step using breakpoints.
641 A return value of 1 means that the software_single_step breakpoints
642 were inserted; 0 means they were not. */
644 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
646 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
647 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
648 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
650 /* Return non-zero if the processor is executing a delay slot and a
651 further single-step is needed before the instruction finishes. */
653 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
655 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
656 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
657 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
659 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
660 disassembler. Perhaps objdump can handle it? */
662 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
663 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
664 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
666 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
667 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
668 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
670 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
671 evaluates non-zero, this is the address where the debugger will place
672 a step-resume breakpoint to get us past the dynamic linker. */
674 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
675 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
676 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
678 /* Some systems also have trampoline code for returning from shared libs. */
680 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
681 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
682 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
684 /* A target might have problems with watchpoints as soon as the stack
685 frame of the current function has been destroyed. This mostly happens
686 as the first action in a funtion's epilogue. in_function_epilogue_p()
687 is defined to return a non-zero value if either the given addr is one
688 instruction after the stack destroying instruction up to the trailing
689 return instruction or if we can figure out that the stack frame has
690 already been invalidated regardless of the value of addr. Targets
691 which don't suffer from that problem could just let this functionality
694 typedef int (gdbarch_in_function_epilogue_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
695 extern int gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
696 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, gdbarch_in_function_epilogue_p_ftype
*in_function_epilogue_p
);
698 /* Process an ELF symbol in the minimal symbol table in a backend-specific
699 way. Normally this hook is supposed to do nothing, however if required,
700 then this hook can be used to apply tranformations to symbols that are
701 considered special in some way. For example the MIPS backend uses it
702 to interpret `st_other' information to mark compressed code symbols so
703 that they can be treated in the appropriate manner in the processing of
704 the main symbol table and DWARF-2 records. */
706 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
708 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
709 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
710 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
712 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
713 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
714 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
716 /* Process a symbol in the main symbol table in a backend-specific way.
717 Normally this hook is supposed to do nothing, however if required,
718 then this hook can be used to apply tranformations to symbols that
719 are considered special in some way. This is currently used by the
720 MIPS backend to make sure compressed code symbols have the ISA bit
721 set. This in turn is needed for symbol values seen in GDB to match
722 the values used at the runtime by the program itself, for function
723 and label references. */
725 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
726 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
727 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
729 /* Adjust the address retrieved from a DWARF-2 record other than a line
730 entry in a backend-specific way. Normally this hook is supposed to
731 return the address passed unchanged, however if that is incorrect for
732 any reason, then this hook can be used to fix the address up in the
733 required manner. This is currently used by the MIPS backend to make
734 sure addresses in FDE, range records, etc. referring to compressed
735 code have the ISA bit set, matching line information and the symbol
738 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
739 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
740 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
742 /* Adjust the address updated by a line entry in a backend-specific way.
743 Normally this hook is supposed to return the address passed unchanged,
744 however in the case of inconsistencies in these records, this hook can
745 be used to fix them up in the required manner. This is currently used
746 by the MIPS backend to make sure all line addresses in compressed code
747 are presented with the ISA bit set, which is not always the case. This
748 in turn ensures breakpoint addresses are correctly matched against the
751 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
752 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
753 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
755 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
756 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
758 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
759 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
761 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
763 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
764 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
765 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
767 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
769 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
770 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
771 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
);
773 /* Return the appropriate type_flags for the supplied address class.
774 This function should return 1 if the address class was recognized and
775 type_flags was set, zero otherwise. */
777 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
779 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
780 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
781 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
);
783 /* Is a register in a group */
785 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
786 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
787 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
789 /* Fetch the pointer to the ith function argument. */
791 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
793 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
794 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
795 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
797 /* Iterate over all supported register notes in a core file. For each
798 supported register note section, the iterator must call CB and pass
799 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
800 the supported register note sections based on the current register
801 values. Otherwise it should enumerate all supported register note
804 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
806 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
807 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
808 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
810 /* Create core file notes */
812 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
814 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
815 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
816 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
818 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
819 files. Most Linux architectures use the same prpsinfo32 or
820 prpsinfo64 layouts, and so won't need to provide this hook, as we
821 call the Linux generic routines in bfd to write prpsinfo notes by
824 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch
*gdbarch
);
826 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype
) (bfd
*obfd
, char *note_data
, int *note_size
, const struct elf_internal_linux_prpsinfo
*info
);
827 extern char * gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch
*gdbarch
, bfd
*obfd
, char *note_data
, int *note_size
, const struct elf_internal_linux_prpsinfo
*info
);
828 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch
*gdbarch
, gdbarch_elfcore_write_linux_prpsinfo_ftype
*elfcore_write_linux_prpsinfo
);
830 /* Find core file memory regions */
832 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
834 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
835 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
836 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
838 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
839 core file into buffer READBUF with length LEN. Return the number of bytes read
840 (zero indicates failure).
841 failed, otherwise, return the red length of READBUF. */
843 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
845 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
846 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
847 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
849 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
850 libraries list from core file into buffer READBUF with length LEN.
851 Return the number of bytes read (zero indicates failure). */
853 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
855 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
856 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
857 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
859 /* How the core target converts a PTID from a core file to a string. */
861 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
863 typedef char * (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
864 extern char * gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
865 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
867 /* BFD target to use when generating a core file. */
869 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
871 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
872 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
874 /* If the elements of C++ vtables are in-place function descriptors rather
875 than normal function pointers (which may point to code or a descriptor),
878 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
879 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
881 /* Set if the least significant bit of the delta is used instead of the least
882 significant bit of the pfn for pointers to virtual member functions. */
884 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
885 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
887 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
889 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
890 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
891 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
893 /* The maximum length of an instruction on this architecture in bytes. */
895 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
897 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
898 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
900 /* Copy the instruction at FROM to TO, and make any adjustments
901 necessary to single-step it at that address.
903 REGS holds the state the thread's registers will have before
904 executing the copied instruction; the PC in REGS will refer to FROM,
905 not the copy at TO. The caller should update it to point at TO later.
907 Return a pointer to data of the architecture's choice to be passed
908 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
909 the instruction's effects have been completely simulated, with the
910 resulting state written back to REGS.
912 For a general explanation of displaced stepping and how GDB uses it,
913 see the comments in infrun.c.
915 The TO area is only guaranteed to have space for
916 gdbarch_max_insn_length (arch) bytes, so this function must not
917 write more bytes than that to that area.
919 If you do not provide this function, GDB assumes that the
920 architecture does not support displaced stepping.
922 If your architecture doesn't need to adjust instructions before
923 single-stepping them, consider using simple_displaced_step_copy_insn
926 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
928 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
929 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
930 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
932 /* Return true if GDB should use hardware single-stepping to execute
933 the displaced instruction identified by CLOSURE. If false,
934 GDB will simply restart execution at the displaced instruction
935 location, and it is up to the target to ensure GDB will receive
936 control again (e.g. by placing a software breakpoint instruction
937 into the displaced instruction buffer).
939 The default implementation returns false on all targets that
940 provide a gdbarch_software_single_step routine, and true otherwise. */
942 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
943 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
944 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
946 /* Fix up the state resulting from successfully single-stepping a
947 displaced instruction, to give the result we would have gotten from
948 stepping the instruction in its original location.
950 REGS is the register state resulting from single-stepping the
951 displaced instruction.
953 CLOSURE is the result from the matching call to
954 gdbarch_displaced_step_copy_insn.
956 If you provide gdbarch_displaced_step_copy_insn.but not this
957 function, then GDB assumes that no fixup is needed after
958 single-stepping the instruction.
960 For a general explanation of displaced stepping and how GDB uses it,
961 see the comments in infrun.c. */
963 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
965 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
966 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
967 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
969 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
971 If you provide gdbarch_displaced_step_copy_insn, you must provide
972 this function as well.
974 If your architecture uses closures that don't need to be freed, then
975 you can use simple_displaced_step_free_closure here.
977 For a general explanation of displaced stepping and how GDB uses it,
978 see the comments in infrun.c. */
980 typedef void (gdbarch_displaced_step_free_closure_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
981 extern void gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
982 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, gdbarch_displaced_step_free_closure_ftype
*displaced_step_free_closure
);
984 /* Return the address of an appropriate place to put displaced
985 instructions while we step over them. There need only be one such
986 place, since we're only stepping one thread over a breakpoint at a
989 For a general explanation of displaced stepping and how GDB uses it,
990 see the comments in infrun.c. */
992 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
993 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
994 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
996 /* Relocate an instruction to execute at a different address. OLDLOC
997 is the address in the inferior memory where the instruction to
998 relocate is currently at. On input, TO points to the destination
999 where we want the instruction to be copied (and possibly adjusted)
1000 to. On output, it points to one past the end of the resulting
1001 instruction(s). The effect of executing the instruction at TO shall
1002 be the same as if executing it at FROM. For example, call
1003 instructions that implicitly push the return address on the stack
1004 should be adjusted to return to the instruction after OLDLOC;
1005 relative branches, and other PC-relative instructions need the
1006 offset adjusted; etc. */
1008 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1010 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1011 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1012 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1014 /* Refresh overlay mapped state for section OSECT. */
1016 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1018 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1019 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1020 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1022 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1024 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1025 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1026 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1028 /* Handle special encoding of static variables in stabs debug info. */
1030 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
1032 typedef const char * (gdbarch_static_transform_name_ftype
) (const char *name
);
1033 extern const char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, const char *name
);
1034 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
1036 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1038 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1039 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1041 /* Parse the instruction at ADDR storing in the record execution log
1042 the registers REGCACHE and memory ranges that will be affected when
1043 the instruction executes, along with their current values.
1044 Return -1 if something goes wrong, 0 otherwise. */
1046 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1048 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1049 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1050 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1052 /* Save process state after a signal.
1053 Return -1 if something goes wrong, 0 otherwise. */
1055 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1057 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1058 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1059 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1061 /* Signal translation: translate inferior's signal (target's) number
1062 into GDB's representation. The implementation of this method must
1063 be host independent. IOW, don't rely on symbols of the NAT_FILE
1064 header (the nm-*.h files), the host <signal.h> header, or similar
1065 headers. This is mainly used when cross-debugging core files ---
1066 "Live" targets hide the translation behind the target interface
1067 (target_wait, target_resume, etc.). */
1069 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1071 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1072 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1073 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1075 /* Signal translation: translate the GDB's internal signal number into
1076 the inferior's signal (target's) representation. The implementation
1077 of this method must be host independent. IOW, don't rely on symbols
1078 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1079 header, or similar headers.
1080 Return the target signal number if found, or -1 if the GDB internal
1081 signal number is invalid. */
1083 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1085 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1086 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1087 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1089 /* Extra signal info inspection.
1091 Return a type suitable to inspect extra signal information. */
1093 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1095 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1096 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1097 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1099 /* Record architecture-specific information from the symbol table. */
1101 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1103 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1104 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1105 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1107 /* Function for the 'catch syscall' feature.
1108 Get architecture-specific system calls information from registers. */
1110 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1112 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
1113 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, ptid_t ptid
);
1114 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1116 /* The filename of the XML syscall for this architecture. */
1118 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1119 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1121 /* Information about system calls from this architecture */
1123 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1124 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1126 /* SystemTap related fields and functions.
1127 A NULL-terminated array of prefixes used to mark an integer constant
1128 on the architecture's assembly.
1129 For example, on x86 integer constants are written as:
1131 $10 ;; integer constant 10
1133 in this case, this prefix would be the character `$'. */
1135 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1136 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1138 /* A NULL-terminated array of suffixes used to mark an integer constant
1139 on the architecture's assembly. */
1141 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1142 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1144 /* A NULL-terminated array of prefixes used to mark a register name on
1145 the architecture's assembly.
1146 For example, on x86 the register name is written as:
1148 %eax ;; register eax
1150 in this case, this prefix would be the character `%'. */
1152 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1153 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1155 /* A NULL-terminated array of suffixes used to mark a register name on
1156 the architecture's assembly. */
1158 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1159 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1161 /* A NULL-terminated array of prefixes used to mark a register
1162 indirection on the architecture's assembly.
1163 For example, on x86 the register indirection is written as:
1165 (%eax) ;; indirecting eax
1167 in this case, this prefix would be the charater `('.
1169 Please note that we use the indirection prefix also for register
1170 displacement, e.g., `4(%eax)' on x86. */
1172 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1173 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1175 /* A NULL-terminated array of suffixes used to mark a register
1176 indirection on the architecture's assembly.
1177 For example, on x86 the register indirection is written as:
1179 (%eax) ;; indirecting eax
1181 in this case, this prefix would be the charater `)'.
1183 Please note that we use the indirection suffix also for register
1184 displacement, e.g., `4(%eax)' on x86. */
1186 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1187 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1189 /* Prefix(es) used to name a register using GDB's nomenclature.
1191 For example, on PPC a register is represented by a number in the assembly
1192 language (e.g., `10' is the 10th general-purpose register). However,
1193 inside GDB this same register has an `r' appended to its name, so the 10th
1194 register would be represented as `r10' internally. */
1196 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1197 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1199 /* Suffix used to name a register using GDB's nomenclature. */
1201 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1202 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1204 /* Check if S is a single operand.
1206 Single operands can be:
1207 - Literal integers, e.g. `$10' on x86
1208 - Register access, e.g. `%eax' on x86
1209 - Register indirection, e.g. `(%eax)' on x86
1210 - Register displacement, e.g. `4(%eax)' on x86
1212 This function should check for these patterns on the string
1213 and return 1 if some were found, or zero otherwise. Please try to match
1214 as much info as you can from the string, i.e., if you have to match
1215 something like `(%', do not match just the `('. */
1217 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1219 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1220 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1221 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1223 /* Function used to handle a "special case" in the parser.
1225 A "special case" is considered to be an unknown token, i.e., a token
1226 that the parser does not know how to parse. A good example of special
1227 case would be ARM's register displacement syntax:
1229 [R0, #4] ;; displacing R0 by 4
1231 Since the parser assumes that a register displacement is of the form:
1233 <number> <indirection_prefix> <register_name> <indirection_suffix>
1235 it means that it will not be able to recognize and parse this odd syntax.
1236 Therefore, we should add a special case function that will handle this token.
1238 This function should generate the proper expression form of the expression
1239 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1240 and so on). It should also return 1 if the parsing was successful, or zero
1241 if the token was not recognized as a special token (in this case, returning
1242 zero means that the special parser is deferring the parsing to the generic
1243 parser), and should advance the buffer pointer (p->arg). */
1245 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1247 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1248 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1249 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1251 /* DTrace related functions.
1252 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1253 NARG must be >= 0. */
1255 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1257 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1258 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1259 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1261 /* True if the given ADDR does not contain the instruction sequence
1262 corresponding to a disabled DTrace is-enabled probe. */
1264 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1266 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1267 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1268 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1270 /* Enable a DTrace is-enabled probe at ADDR. */
1272 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1274 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1275 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1276 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1278 /* Disable a DTrace is-enabled probe at ADDR. */
1280 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1282 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1283 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1284 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1286 /* True if the list of shared libraries is one and only for all
1287 processes, as opposed to a list of shared libraries per inferior.
1288 This usually means that all processes, although may or may not share
1289 an address space, will see the same set of symbols at the same
1292 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1293 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1295 /* On some targets, even though each inferior has its own private
1296 address space, the debug interface takes care of making breakpoints
1297 visible to all address spaces automatically. For such cases,
1298 this property should be set to true. */
1300 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1301 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1303 /* True if inferiors share an address space (e.g., uClinux). */
1305 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1306 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1307 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1309 /* True if a fast tracepoint can be set at an address. */
1311 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int *isize
, char **msg
);
1312 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int *isize
, char **msg
);
1313 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1315 /* Return the "auto" target charset. */
1317 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1318 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1319 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1321 /* Return the "auto" target wide charset. */
1323 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1324 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1325 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1327 /* If non-empty, this is a file extension that will be opened in place
1328 of the file extension reported by the shared library list.
1330 This is most useful for toolchains that use a post-linker tool,
1331 where the names of the files run on the target differ in extension
1332 compared to the names of the files GDB should load for debug info. */
1334 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1335 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1337 /* If true, the target OS has DOS-based file system semantics. That
1338 is, absolute paths include a drive name, and the backslash is
1339 considered a directory separator. */
1341 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1342 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1344 /* Generate bytecodes to collect the return address in a frame.
1345 Since the bytecodes run on the target, possibly with GDB not even
1346 connected, the full unwinding machinery is not available, and
1347 typically this function will issue bytecodes for one or more likely
1348 places that the return address may be found. */
1350 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1351 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1352 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1354 /* Implement the "info proc" command. */
1356 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1358 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1359 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1360 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1362 /* Implement the "info proc" command for core files. Noe that there
1363 are two "info_proc"-like methods on gdbarch -- one for core files,
1364 one for live targets. */
1366 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1368 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1369 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1370 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1372 /* Iterate over all objfiles in the order that makes the most sense
1373 for the architecture to make global symbol searches.
1375 CB is a callback function where OBJFILE is the objfile to be searched,
1376 and CB_DATA a pointer to user-defined data (the same data that is passed
1377 when calling this gdbarch method). The iteration stops if this function
1380 CB_DATA is a pointer to some user-defined data to be passed to
1383 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1384 inspected when the symbol search was requested. */
1386 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
);
1387 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
);
1388 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
);
1390 /* Ravenscar arch-dependent ops. */
1392 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1393 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1395 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1397 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1398 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1399 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1401 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1403 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1404 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1405 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1407 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1409 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1410 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1411 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1413 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1414 Return 0 if *READPTR is already at the end of the buffer.
1415 Return -1 if there is insufficient buffer for a whole entry.
1416 Return 1 if an entry was read into *TYPEP and *VALP. */
1418 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1420 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1421 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1422 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1424 /* Find the address range of the current inferior's vsyscall/vDSO, and
1425 write it to *RANGE. If the vsyscall's length can't be determined, a
1426 range with zero length is returned. Returns true if the vsyscall is
1427 found, false otherwise. */
1429 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1430 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1431 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1433 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1434 PROT has GDB_MMAP_PROT_* bitmask format.
1435 Throw an error if it is not possible. Returned address is always valid. */
1437 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1438 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1439 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1441 /* Return string (caller has to use xfree for it) with options for GCC
1442 to produce code for this target, typically "-m64", "-m32" or "-m31".
1443 These options are put before CU's DW_AT_producer compilation options so that
1444 they can override it. Method may also return NULL. */
1446 typedef char * (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1447 extern char * gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1448 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1450 /* Return a regular expression that matches names used by this
1451 architecture in GNU configury triplets. The result is statically
1452 allocated and must not be freed. The default implementation simply
1453 returns the BFD architecture name, which is correct in nearly every
1456 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1457 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1458 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1460 /* Definition for an unknown syscall, used basically in error-cases. */
1461 #define UNKNOWN_SYSCALL (-1)
1463 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1466 /* Mechanism for co-ordinating the selection of a specific
1469 GDB targets (*-tdep.c) can register an interest in a specific
1470 architecture. Other GDB components can register a need to maintain
1471 per-architecture data.
1473 The mechanisms below ensures that there is only a loose connection
1474 between the set-architecture command and the various GDB
1475 components. Each component can independently register their need
1476 to maintain architecture specific data with gdbarch.
1480 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1483 The more traditional mega-struct containing architecture specific
1484 data for all the various GDB components was also considered. Since
1485 GDB is built from a variable number of (fairly independent)
1486 components it was determined that the global aproach was not
1490 /* Register a new architectural family with GDB.
1492 Register support for the specified ARCHITECTURE with GDB. When
1493 gdbarch determines that the specified architecture has been
1494 selected, the corresponding INIT function is called.
1498 The INIT function takes two parameters: INFO which contains the
1499 information available to gdbarch about the (possibly new)
1500 architecture; ARCHES which is a list of the previously created
1501 ``struct gdbarch'' for this architecture.
1503 The INFO parameter is, as far as possible, be pre-initialized with
1504 information obtained from INFO.ABFD or the global defaults.
1506 The ARCHES parameter is a linked list (sorted most recently used)
1507 of all the previously created architures for this architecture
1508 family. The (possibly NULL) ARCHES->gdbarch can used to access
1509 values from the previously selected architecture for this
1510 architecture family.
1512 The INIT function shall return any of: NULL - indicating that it
1513 doesn't recognize the selected architecture; an existing ``struct
1514 gdbarch'' from the ARCHES list - indicating that the new
1515 architecture is just a synonym for an earlier architecture (see
1516 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1517 - that describes the selected architecture (see gdbarch_alloc()).
1519 The DUMP_TDEP function shall print out all target specific values.
1520 Care should be taken to ensure that the function works in both the
1521 multi-arch and non- multi-arch cases. */
1525 struct gdbarch
*gdbarch
;
1526 struct gdbarch_list
*next
;
1531 /* Use default: NULL (ZERO). */
1532 const struct bfd_arch_info
*bfd_arch_info
;
1534 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1535 enum bfd_endian byte_order
;
1537 enum bfd_endian byte_order_for_code
;
1539 /* Use default: NULL (ZERO). */
1542 /* Use default: NULL (ZERO). */
1543 struct gdbarch_tdep_info
*tdep_info
;
1545 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1546 enum gdb_osabi osabi
;
1548 /* Use default: NULL (ZERO). */
1549 const struct target_desc
*target_desc
;
1552 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1553 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1555 /* DEPRECATED - use gdbarch_register() */
1556 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1558 extern void gdbarch_register (enum bfd_architecture architecture
,
1559 gdbarch_init_ftype
*,
1560 gdbarch_dump_tdep_ftype
*);
1563 /* Return a freshly allocated, NULL terminated, array of the valid
1564 architecture names. Since architectures are registered during the
1565 _initialize phase this function only returns useful information
1566 once initialization has been completed. */
1568 extern const char **gdbarch_printable_names (void);
1571 /* Helper function. Search the list of ARCHES for a GDBARCH that
1572 matches the information provided by INFO. */
1574 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1577 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1578 basic initialization using values obtained from the INFO and TDEP
1579 parameters. set_gdbarch_*() functions are called to complete the
1580 initialization of the object. */
1582 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1585 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1586 It is assumed that the caller freeds the ``struct
1589 extern void gdbarch_free (struct gdbarch
*);
1592 /* Helper function. Allocate memory from the ``struct gdbarch''
1593 obstack. The memory is freed when the corresponding architecture
1596 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
1597 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1598 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1601 /* Helper function. Force an update of the current architecture.
1603 The actual architecture selected is determined by INFO, ``(gdb) set
1604 architecture'' et.al., the existing architecture and BFD's default
1605 architecture. INFO should be initialized to zero and then selected
1606 fields should be updated.
1608 Returns non-zero if the update succeeds. */
1610 extern int gdbarch_update_p (struct gdbarch_info info
);
1613 /* Helper function. Find an architecture matching info.
1615 INFO should be initialized using gdbarch_info_init, relevant fields
1616 set, and then finished using gdbarch_info_fill.
1618 Returns the corresponding architecture, or NULL if no matching
1619 architecture was found. */
1621 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1624 /* Helper function. Set the target gdbarch to "gdbarch". */
1626 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1629 /* Register per-architecture data-pointer.
1631 Reserve space for a per-architecture data-pointer. An identifier
1632 for the reserved data-pointer is returned. That identifer should
1633 be saved in a local static variable.
1635 Memory for the per-architecture data shall be allocated using
1636 gdbarch_obstack_zalloc. That memory will be deleted when the
1637 corresponding architecture object is deleted.
1639 When a previously created architecture is re-selected, the
1640 per-architecture data-pointer for that previous architecture is
1641 restored. INIT() is not re-called.
1643 Multiple registrarants for any architecture are allowed (and
1644 strongly encouraged). */
1646 struct gdbarch_data
;
1648 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1649 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1650 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1651 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1652 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1653 struct gdbarch_data
*data
,
1656 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1659 /* Set the dynamic target-system-dependent parameters (architecture,
1660 byte-order, ...) using information found in the BFD. */
1662 extern void set_gdbarch_from_file (bfd
*);
1665 /* Initialize the current architecture to the "first" one we find on
1668 extern void initialize_current_architecture (void);
1670 /* gdbarch trace variable */
1671 extern unsigned int gdbarch_debug
;
1673 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);