1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2017 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
47 struct minimal_symbol
;
51 struct disassemble_info
;
54 struct bp_target_info
;
57 struct displaced_step_closure
;
61 struct stap_parse_info
;
63 struct ravenscar_arch_ops
;
64 struct elf_internal_linux_prpsinfo
;
72 /* The architecture associated with the inferior through the
73 connection to the target.
75 The architecture vector provides some information that is really a
76 property of the inferior, accessed through a particular target:
77 ptrace operations; the layout of certain RSP packets; the solib_ops
78 vector; etc. To differentiate architecture accesses to
79 per-inferior/target properties from
80 per-thread/per-frame/per-objfile properties, accesses to
81 per-inferior/target properties should be made through this
84 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
85 extern struct gdbarch
*target_gdbarch (void);
87 /* Callback type for the 'iterate_over_objfiles_in_search_order'
90 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
91 (struct objfile
*objfile
, void *cb_data
);
93 /* Callback type for regset section iterators. The callback usually
94 invokes the REGSET's supply or collect method, to which it must
95 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
96 section name, and HUMAN_NAME is used for diagnostic messages.
97 CB_DATA should have been passed unchanged through the iterator. */
99 typedef void (iterate_over_regset_sections_cb
)
100 (const char *sect_name
, int size
, const struct regset
*regset
,
101 const char *human_name
, void *cb_data
);
104 /* The following are pre-initialized by GDBARCH. */
106 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
107 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
109 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
110 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
112 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
113 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
115 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
116 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
118 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
119 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
122 /* The following are initialized by the target dependent code. */
124 /* The bit byte-order has to do just with numbering of bits in debugging symbols
125 and such. Conceptually, it's quite separate from byte/word byte order. */
127 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
128 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
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 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
188 starting with C++11. */
190 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
191 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
193 /* One if `wchar_t' is signed, zero if unsigned. */
195 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
196 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
198 /* Returns the floating-point format to be used for values of length LENGTH.
199 NAME, if non-NULL, is the type name, which may be used to distinguish
200 different target formats of the same length. */
202 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
203 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
204 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
206 /* For most targets, a pointer on the target and its representation as an
207 address in GDB have the same size and "look the same". For such a
208 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
209 / addr_bit will be set from it.
211 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
212 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
213 gdbarch_address_to_pointer as well.
215 ptr_bit is the size of a pointer on the target */
217 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
218 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
220 /* addr_bit is the size of a target address as represented in gdb */
222 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
223 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
225 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
226 info. For .debug_frame FDEs, this is supposed to be the target address
227 size from the associated CU header, and which is equivalent to the
228 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
229 Unfortunately there is no good way to determine this value. Therefore
230 dwarf2_addr_size simply defaults to the target pointer size.
232 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
233 defined using the target's pointer size so far.
235 Note that dwarf2_addr_size only needs to be redefined by a target if the
236 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
237 and if Dwarf versions < 4 need to be supported. */
239 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
240 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
242 /* One if `char' acts like `signed char', zero if `unsigned char'. */
244 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
245 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
247 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
249 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
250 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
251 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
253 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
255 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
256 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
257 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
259 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
260 whole scheme for dealing with "frames" and "frame pointers" needs a
261 serious shakedown. */
263 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
264 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
265 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
267 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
269 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
270 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
271 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
273 /* Read a register into a new struct value. If the register is wholly
274 or partly unavailable, this should call mark_value_bytes_unavailable
275 as appropriate. If this is defined, then pseudo_register_read will
278 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
280 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
281 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
282 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
284 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
286 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
287 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
288 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
290 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
291 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
293 /* This macro gives the number of pseudo-registers that live in the
294 register namespace but do not get fetched or stored on the target.
295 These pseudo-registers may be aliases for other registers,
296 combinations of other registers, or they may be computed by GDB. */
298 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
299 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
301 /* Assemble agent expression bytecode to collect pseudo-register REG.
302 Return -1 if something goes wrong, 0 otherwise. */
304 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
306 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
307 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
308 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
310 /* Assemble agent expression bytecode to push the value of pseudo-register
311 REG on the interpreter stack.
312 Return -1 if something goes wrong, 0 otherwise. */
314 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
316 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
317 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
318 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
320 /* Some targets/architectures can do extra processing/display of
321 segmentation faults. E.g., Intel MPX boundary faults.
322 Call the architecture dependent function to handle the fault.
323 UIOUT is the output stream where the handler will place information. */
325 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch
*gdbarch
);
327 typedef void (gdbarch_handle_segmentation_fault_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
328 extern void gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
329 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, gdbarch_handle_segmentation_fault_ftype
*handle_segmentation_fault
);
331 /* GDB's standard (or well known) register numbers. These can map onto
332 a real register or a pseudo (computed) register or not be defined at
334 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
336 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
337 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
339 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
340 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
342 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
343 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
345 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
346 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
348 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
350 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
351 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
352 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
354 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
356 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
357 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
358 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
360 /* Convert from an sdb register number to an internal gdb register number. */
362 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
363 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
364 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
366 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
367 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
369 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
370 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
371 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
373 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
374 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
375 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
377 /* Return the type of a register specified by the architecture. Only
378 the register cache should call this function directly; others should
379 use "register_type". */
381 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
383 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
384 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
385 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
387 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
389 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
390 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
391 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
393 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
394 deprecated_fp_regnum. */
396 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
397 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
399 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
401 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
);
402 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
);
403 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
405 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
406 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
408 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
410 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
);
411 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
);
412 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
414 /* Return true if the code of FRAME is writable. */
416 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
417 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
418 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
420 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
421 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
422 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
424 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
425 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
426 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
428 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
430 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
431 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
432 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
434 /* MAP a GDB RAW register number onto a simulator register number. See
435 also include/...-sim.h. */
437 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
438 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
439 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
441 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
442 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
443 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
445 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
446 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
447 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
449 /* Determine the address where a longjmp will land and save this address
450 in PC. Return nonzero on success.
452 FRAME corresponds to the longjmp frame. */
454 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
456 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
457 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
458 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
460 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
461 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
463 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
464 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
465 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
467 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
468 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
);
469 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
471 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
472 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
473 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
475 /* Construct a value representing the contents of register REGNUM in
476 frame FRAME_ID, interpreted as type TYPE. The routine needs to
477 allocate and return a struct value with all value attributes
478 (but not the value contents) filled in. */
480 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
481 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
482 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
484 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
485 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
486 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
488 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
489 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
490 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
492 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
494 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
495 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
496 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
498 /* Return the return-value convention that will be used by FUNCTION
499 to return a value of type VALTYPE. FUNCTION may be NULL in which
500 case the return convention is computed based only on VALTYPE.
502 If READBUF is not NULL, extract the return value and save it in this buffer.
504 If WRITEBUF is not NULL, it contains a return value which will be
505 stored into the appropriate register. This can be used when we want
506 to force the value returned by a function (see the "return" command
509 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
511 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
);
512 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
);
513 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
515 /* Return true if the return value of function is stored in the first hidden
516 parameter. In theory, this feature should be language-dependent, specified
517 by language and its ABI, such as C++. Unfortunately, compiler may
518 implement it to a target-dependent feature. So that we need such hook here
519 to be aware of this in GDB. */
521 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
522 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
523 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
);
525 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
526 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
527 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
529 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
531 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
532 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
533 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
535 /* On some platforms, a single function may provide multiple entry points,
536 e.g. one that is used for function-pointer calls and a different one
537 that is used for direct function calls.
538 In order to ensure that breakpoints set on the function will trigger
539 no matter via which entry point the function is entered, a platform
540 may provide the skip_entrypoint callback. It is called with IP set
541 to the main entry point of a function (as determined by the symbol table),
542 and should return the address of the innermost entry point, where the
543 actual breakpoint needs to be set. Note that skip_entrypoint is used
544 by GDB common code even when debugging optimized code, where skip_prologue
547 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
549 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
550 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
551 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
553 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
554 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
555 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
557 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
558 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
559 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
561 /* Return the breakpoint kind for this target based on *PCPTR. */
563 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
564 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
565 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
567 /* Return the software breakpoint from KIND. KIND can have target
568 specific meaning like the Z0 kind parameter.
569 SIZE is set to the software breakpoint's length in memory. */
571 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
572 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
573 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
575 /* Return the breakpoint kind for this target based on the current
576 processor state (e.g. the current instruction mode on ARM) and the
577 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
579 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
580 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
581 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
583 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
585 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
586 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
587 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
589 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
590 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
591 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
593 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
594 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
595 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
597 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
598 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
600 /* A function can be addressed by either it's "pointer" (possibly a
601 descriptor address) or "entry point" (first executable instruction).
602 The method "convert_from_func_ptr_addr" converting the former to the
603 latter. gdbarch_deprecated_function_start_offset is being used to implement
604 a simplified subset of that functionality - the function's address
605 corresponds to the "function pointer" and the function's start
606 corresponds to the "function entry point" - and hence is redundant. */
608 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
609 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
611 /* Return the remote protocol register number associated with this
612 register. Normally the identity mapping. */
614 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
615 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
616 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
618 /* Fetch the target specific address used to represent a load module. */
620 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
622 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
623 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
624 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
626 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
627 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
629 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
631 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
632 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
633 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
635 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
637 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
638 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
639 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
641 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
642 frame-base. Enable frame-base before frame-unwind. */
644 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
646 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
647 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
648 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
650 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
652 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
653 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
654 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
656 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
657 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
658 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
660 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
661 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
663 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
664 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
665 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
667 /* On some machines there are bits in addresses which are not really
668 part of the address, but are used by the kernel, the hardware, etc.
669 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
670 we get a "real" address such as one would find in a symbol table.
671 This is used only for addresses of instructions, and even then I'm
672 not sure it's used in all contexts. It exists to deal with there
673 being a few stray bits in the PC which would mislead us, not as some
674 sort of generic thing to handle alignment or segmentation (it's
675 possible it should be in TARGET_READ_PC instead). */
677 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
678 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
679 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
681 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
682 indicates if the target needs software single step. An ISA method to
685 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
686 target can single step. If not, then implement single step using breakpoints.
688 Return a vector of addresses on which the software single step
689 breakpoints should be inserted. NULL means software single step is
691 Multiple breakpoints may be inserted for some instructions such as
692 conditional branch. However, each implementation must always evaluate
693 the condition and only put the breakpoint at the branch destination if
694 the condition is true, so that we ensure forward progress when stepping
695 past a conditional branch to self. */
697 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
699 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
700 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
701 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
703 /* Return non-zero if the processor is executing a delay slot and a
704 further single-step is needed before the instruction finishes. */
706 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
708 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
709 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
710 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
712 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
713 disassembler. Perhaps objdump can handle it? */
715 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
716 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
717 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
719 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
720 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
721 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
723 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
724 evaluates non-zero, this is the address where the debugger will place
725 a step-resume breakpoint to get us past the dynamic linker. */
727 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
728 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
729 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
731 /* Some systems also have trampoline code for returning from shared libs. */
733 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
734 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
735 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
737 /* A target might have problems with watchpoints as soon as the stack
738 frame of the current function has been destroyed. This mostly happens
739 as the first action in a function's epilogue. stack_frame_destroyed_p()
740 is defined to return a non-zero value if either the given addr is one
741 instruction after the stack destroying instruction up to the trailing
742 return instruction or if we can figure out that the stack frame has
743 already been invalidated regardless of the value of addr. Targets
744 which don't suffer from that problem could just let this functionality
747 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
748 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
749 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
751 /* Process an ELF symbol in the minimal symbol table in a backend-specific
752 way. Normally this hook is supposed to do nothing, however if required,
753 then this hook can be used to apply tranformations to symbols that are
754 considered special in some way. For example the MIPS backend uses it
755 to interpret `st_other' information to mark compressed code symbols so
756 that they can be treated in the appropriate manner in the processing of
757 the main symbol table and DWARF-2 records. */
759 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
761 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
762 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
763 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
765 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
766 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
767 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
769 /* Process a symbol in the main symbol table in a backend-specific way.
770 Normally this hook is supposed to do nothing, however if required,
771 then this hook can be used to apply tranformations to symbols that
772 are considered special in some way. This is currently used by the
773 MIPS backend to make sure compressed code symbols have the ISA bit
774 set. This in turn is needed for symbol values seen in GDB to match
775 the values used at the runtime by the program itself, for function
776 and label references. */
778 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
779 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
780 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
782 /* Adjust the address retrieved from a DWARF-2 record other than a line
783 entry in a backend-specific way. Normally this hook is supposed to
784 return the address passed unchanged, however if that is incorrect for
785 any reason, then this hook can be used to fix the address up in the
786 required manner. This is currently used by the MIPS backend to make
787 sure addresses in FDE, range records, etc. referring to compressed
788 code have the ISA bit set, matching line information and the symbol
791 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
792 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
793 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
795 /* Adjust the address updated by a line entry in a backend-specific way.
796 Normally this hook is supposed to return the address passed unchanged,
797 however in the case of inconsistencies in these records, this hook can
798 be used to fix them up in the required manner. This is currently used
799 by the MIPS backend to make sure all line addresses in compressed code
800 are presented with the ISA bit set, which is not always the case. This
801 in turn ensures breakpoint addresses are correctly matched against the
804 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
805 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
806 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
808 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
809 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
811 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
812 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
814 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
816 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
817 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
818 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
820 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
822 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
823 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
824 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
);
826 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
827 FS are passed from the generic execute_cfa_program function. */
829 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
830 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
831 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
833 /* Return the appropriate type_flags for the supplied address class.
834 This function should return 1 if the address class was recognized and
835 type_flags was set, zero otherwise. */
837 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
839 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
840 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
841 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
);
843 /* Is a register in a group */
845 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
846 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
847 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
849 /* Fetch the pointer to the ith function argument. */
851 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
853 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
854 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
855 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
857 /* Iterate over all supported register notes in a core file. For each
858 supported register note section, the iterator must call CB and pass
859 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
860 the supported register note sections based on the current register
861 values. Otherwise it should enumerate all supported register note
864 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
866 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
867 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
868 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
870 /* Create core file notes */
872 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
874 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
875 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
876 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
878 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
879 files. Most Linux architectures use the same prpsinfo32 or
880 prpsinfo64 layouts, and so won't need to provide this hook, as we
881 call the Linux generic routines in bfd to write prpsinfo notes by
884 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch
*gdbarch
);
886 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype
) (bfd
*obfd
, char *note_data
, int *note_size
, const struct elf_internal_linux_prpsinfo
*info
);
887 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
);
888 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch
*gdbarch
, gdbarch_elfcore_write_linux_prpsinfo_ftype
*elfcore_write_linux_prpsinfo
);
890 /* Find core file memory regions */
892 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
894 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
895 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
896 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
898 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
899 core file into buffer READBUF with length LEN. Return the number of bytes read
900 (zero indicates failure).
901 failed, otherwise, return the red length of READBUF. */
903 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
905 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
906 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
907 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
909 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
910 libraries list from core file into buffer READBUF with length LEN.
911 Return the number of bytes read (zero indicates failure). */
913 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
915 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
916 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
917 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
919 /* How the core target converts a PTID from a core file to a string. */
921 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
923 typedef const char * (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
924 extern const char * gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
925 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
927 /* How the core target extracts the name of a thread from a core file. */
929 extern int gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
931 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
932 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
933 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
935 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
936 from core file into buffer READBUF with length LEN. Return the number
937 of bytes read (zero indicates EOF, a negative value indicates failure). */
939 extern int gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
941 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
942 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
943 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
945 /* BFD target to use when generating a core file. */
947 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
949 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
950 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
952 /* If the elements of C++ vtables are in-place function descriptors rather
953 than normal function pointers (which may point to code or a descriptor),
956 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
957 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
959 /* Set if the least significant bit of the delta is used instead of the least
960 significant bit of the pfn for pointers to virtual member functions. */
962 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
963 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
965 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
967 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
968 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
969 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
971 /* The maximum length of an instruction on this architecture in bytes. */
973 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
975 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
976 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
978 /* Copy the instruction at FROM to TO, and make any adjustments
979 necessary to single-step it at that address.
981 REGS holds the state the thread's registers will have before
982 executing the copied instruction; the PC in REGS will refer to FROM,
983 not the copy at TO. The caller should update it to point at TO later.
985 Return a pointer to data of the architecture's choice to be passed
986 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
987 the instruction's effects have been completely simulated, with the
988 resulting state written back to REGS.
990 For a general explanation of displaced stepping and how GDB uses it,
991 see the comments in infrun.c.
993 The TO area is only guaranteed to have space for
994 gdbarch_max_insn_length (arch) bytes, so this function must not
995 write more bytes than that to that area.
997 If you do not provide this function, GDB assumes that the
998 architecture does not support displaced stepping.
1000 If your architecture doesn't need to adjust instructions before
1001 single-stepping them, consider using simple_displaced_step_copy_insn
1004 If the instruction cannot execute out of line, return NULL. The
1005 core falls back to stepping past the instruction in-line instead in
1008 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1010 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1011 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1012 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1014 /* Return true if GDB should use hardware single-stepping to execute
1015 the displaced instruction identified by CLOSURE. If false,
1016 GDB will simply restart execution at the displaced instruction
1017 location, and it is up to the target to ensure GDB will receive
1018 control again (e.g. by placing a software breakpoint instruction
1019 into the displaced instruction buffer).
1021 The default implementation returns false on all targets that
1022 provide a gdbarch_software_single_step routine, and true otherwise. */
1024 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
1025 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
1026 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1028 /* Fix up the state resulting from successfully single-stepping a
1029 displaced instruction, to give the result we would have gotten from
1030 stepping the instruction in its original location.
1032 REGS is the register state resulting from single-stepping the
1033 displaced instruction.
1035 CLOSURE is the result from the matching call to
1036 gdbarch_displaced_step_copy_insn.
1038 If you provide gdbarch_displaced_step_copy_insn.but not this
1039 function, then GDB assumes that no fixup is needed after
1040 single-stepping the instruction.
1042 For a general explanation of displaced stepping and how GDB uses it,
1043 see the comments in infrun.c. */
1045 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1047 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1048 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1049 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1051 /* Return the address of an appropriate place to put displaced
1052 instructions while we step over them. There need only be one such
1053 place, since we're only stepping one thread over a breakpoint at a
1056 For a general explanation of displaced stepping and how GDB uses it,
1057 see the comments in infrun.c. */
1059 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
1060 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
1061 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
1063 /* Relocate an instruction to execute at a different address. OLDLOC
1064 is the address in the inferior memory where the instruction to
1065 relocate is currently at. On input, TO points to the destination
1066 where we want the instruction to be copied (and possibly adjusted)
1067 to. On output, it points to one past the end of the resulting
1068 instruction(s). The effect of executing the instruction at TO shall
1069 be the same as if executing it at FROM. For example, call
1070 instructions that implicitly push the return address on the stack
1071 should be adjusted to return to the instruction after OLDLOC;
1072 relative branches, and other PC-relative instructions need the
1073 offset adjusted; etc. */
1075 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1077 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1078 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1079 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1081 /* Refresh overlay mapped state for section OSECT. */
1083 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1085 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1086 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1087 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1089 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1091 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1092 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1093 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1095 /* Handle special encoding of static variables in stabs debug info. */
1097 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
1099 typedef const char * (gdbarch_static_transform_name_ftype
) (const char *name
);
1100 extern const char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, const char *name
);
1101 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
1103 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1105 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1106 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1108 /* Parse the instruction at ADDR storing in the record execution log
1109 the registers REGCACHE and memory ranges that will be affected when
1110 the instruction executes, along with their current values.
1111 Return -1 if something goes wrong, 0 otherwise. */
1113 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1115 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1116 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1117 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1119 /* Save process state after a signal.
1120 Return -1 if something goes wrong, 0 otherwise. */
1122 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1124 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1125 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1126 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1128 /* Signal translation: translate inferior's signal (target's) number
1129 into GDB's representation. The implementation of this method must
1130 be host independent. IOW, don't rely on symbols of the NAT_FILE
1131 header (the nm-*.h files), the host <signal.h> header, or similar
1132 headers. This is mainly used when cross-debugging core files ---
1133 "Live" targets hide the translation behind the target interface
1134 (target_wait, target_resume, etc.). */
1136 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1138 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1139 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1140 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1142 /* Signal translation: translate the GDB's internal signal number into
1143 the inferior's signal (target's) representation. The implementation
1144 of this method must be host independent. IOW, don't rely on symbols
1145 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1146 header, or similar headers.
1147 Return the target signal number if found, or -1 if the GDB internal
1148 signal number is invalid. */
1150 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1152 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1153 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1154 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1156 /* Extra signal info inspection.
1158 Return a type suitable to inspect extra signal information. */
1160 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1162 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1163 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1164 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1166 /* Record architecture-specific information from the symbol table. */
1168 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1170 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1171 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1172 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1174 /* Function for the 'catch syscall' feature.
1175 Get architecture-specific system calls information from registers. */
1177 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1179 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
1180 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, ptid_t ptid
);
1181 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1183 /* The filename of the XML syscall for this architecture. */
1185 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1186 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1188 /* Information about system calls from this architecture */
1190 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1191 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1193 /* SystemTap related fields and functions.
1194 A NULL-terminated array of prefixes used to mark an integer constant
1195 on the architecture's assembly.
1196 For example, on x86 integer constants are written as:
1198 $10 ;; integer constant 10
1200 in this case, this prefix would be the character `$'. */
1202 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1203 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1205 /* A NULL-terminated array of suffixes used to mark an integer constant
1206 on the architecture's assembly. */
1208 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1209 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1211 /* A NULL-terminated array of prefixes used to mark a register name on
1212 the architecture's assembly.
1213 For example, on x86 the register name is written as:
1215 %eax ;; register eax
1217 in this case, this prefix would be the character `%'. */
1219 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1220 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1222 /* A NULL-terminated array of suffixes used to mark a register name on
1223 the architecture's assembly. */
1225 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1226 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1228 /* A NULL-terminated array of prefixes used to mark a register
1229 indirection on the architecture's assembly.
1230 For example, on x86 the register indirection is written as:
1232 (%eax) ;; indirecting eax
1234 in this case, this prefix would be the charater `('.
1236 Please note that we use the indirection prefix also for register
1237 displacement, e.g., `4(%eax)' on x86. */
1239 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1240 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1242 /* A NULL-terminated array of suffixes used to mark a register
1243 indirection on the architecture's assembly.
1244 For example, on x86 the register indirection is written as:
1246 (%eax) ;; indirecting eax
1248 in this case, this prefix would be the charater `)'.
1250 Please note that we use the indirection suffix also for register
1251 displacement, e.g., `4(%eax)' on x86. */
1253 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1254 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1256 /* Prefix(es) used to name a register using GDB's nomenclature.
1258 For example, on PPC a register is represented by a number in the assembly
1259 language (e.g., `10' is the 10th general-purpose register). However,
1260 inside GDB this same register has an `r' appended to its name, so the 10th
1261 register would be represented as `r10' internally. */
1263 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1264 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1266 /* Suffix used to name a register using GDB's nomenclature. */
1268 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1269 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1271 /* Check if S is a single operand.
1273 Single operands can be:
1274 - Literal integers, e.g. `$10' on x86
1275 - Register access, e.g. `%eax' on x86
1276 - Register indirection, e.g. `(%eax)' on x86
1277 - Register displacement, e.g. `4(%eax)' on x86
1279 This function should check for these patterns on the string
1280 and return 1 if some were found, or zero otherwise. Please try to match
1281 as much info as you can from the string, i.e., if you have to match
1282 something like `(%', do not match just the `('. */
1284 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1286 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1287 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1288 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1290 /* Function used to handle a "special case" in the parser.
1292 A "special case" is considered to be an unknown token, i.e., a token
1293 that the parser does not know how to parse. A good example of special
1294 case would be ARM's register displacement syntax:
1296 [R0, #4] ;; displacing R0 by 4
1298 Since the parser assumes that a register displacement is of the form:
1300 <number> <indirection_prefix> <register_name> <indirection_suffix>
1302 it means that it will not be able to recognize and parse this odd syntax.
1303 Therefore, we should add a special case function that will handle this token.
1305 This function should generate the proper expression form of the expression
1306 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1307 and so on). It should also return 1 if the parsing was successful, or zero
1308 if the token was not recognized as a special token (in this case, returning
1309 zero means that the special parser is deferring the parsing to the generic
1310 parser), and should advance the buffer pointer (p->arg). */
1312 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1314 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1315 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1316 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1318 /* DTrace related functions.
1319 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1320 NARG must be >= 0. */
1322 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1324 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1325 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1326 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1328 /* True if the given ADDR does not contain the instruction sequence
1329 corresponding to a disabled DTrace is-enabled probe. */
1331 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1333 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1334 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1335 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1337 /* Enable a DTrace is-enabled probe at ADDR. */
1339 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1341 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1342 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1343 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1345 /* Disable a DTrace is-enabled probe at ADDR. */
1347 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1349 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1350 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1351 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1353 /* True if the list of shared libraries is one and only for all
1354 processes, as opposed to a list of shared libraries per inferior.
1355 This usually means that all processes, although may or may not share
1356 an address space, will see the same set of symbols at the same
1359 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1360 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1362 /* On some targets, even though each inferior has its own private
1363 address space, the debug interface takes care of making breakpoints
1364 visible to all address spaces automatically. For such cases,
1365 this property should be set to true. */
1367 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1368 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1370 /* True if inferiors share an address space (e.g., uClinux). */
1372 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1373 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1374 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1376 /* True if a fast tracepoint can be set at an address. */
1378 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, char **msg
);
1379 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, char **msg
);
1380 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1382 /* Guess register state based on tracepoint location. Used for tracepoints
1383 where no registers have been collected, but there's only one location,
1384 allowing us to guess the PC value, and perhaps some other registers.
1385 On entry, regcache has all registers marked as unavailable. */
1387 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1388 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1389 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1391 /* Return the "auto" target charset. */
1393 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1394 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1395 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1397 /* Return the "auto" target wide charset. */
1399 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1400 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1401 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1403 /* If non-empty, this is a file extension that will be opened in place
1404 of the file extension reported by the shared library list.
1406 This is most useful for toolchains that use a post-linker tool,
1407 where the names of the files run on the target differ in extension
1408 compared to the names of the files GDB should load for debug info. */
1410 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1411 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1413 /* If true, the target OS has DOS-based file system semantics. That
1414 is, absolute paths include a drive name, and the backslash is
1415 considered a directory separator. */
1417 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1418 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1420 /* Generate bytecodes to collect the return address in a frame.
1421 Since the bytecodes run on the target, possibly with GDB not even
1422 connected, the full unwinding machinery is not available, and
1423 typically this function will issue bytecodes for one or more likely
1424 places that the return address may be found. */
1426 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1427 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1428 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1430 /* Implement the "info proc" command. */
1432 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1434 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1435 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1436 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1438 /* Implement the "info proc" command for core files. Noe that there
1439 are two "info_proc"-like methods on gdbarch -- one for core files,
1440 one for live targets. */
1442 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1444 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1445 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1446 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1448 /* Iterate over all objfiles in the order that makes the most sense
1449 for the architecture to make global symbol searches.
1451 CB is a callback function where OBJFILE is the objfile to be searched,
1452 and CB_DATA a pointer to user-defined data (the same data that is passed
1453 when calling this gdbarch method). The iteration stops if this function
1456 CB_DATA is a pointer to some user-defined data to be passed to
1459 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1460 inspected when the symbol search was requested. */
1462 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
);
1463 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
);
1464 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
);
1466 /* Ravenscar arch-dependent ops. */
1468 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1469 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1471 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1473 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1474 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1475 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1477 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1479 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1480 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1481 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1483 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1485 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1486 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1487 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1489 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1490 Return 0 if *READPTR is already at the end of the buffer.
1491 Return -1 if there is insufficient buffer for a whole entry.
1492 Return 1 if an entry was read into *TYPEP and *VALP. */
1494 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1496 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1497 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1498 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1500 /* Print the description of a single auxv entry described by TYPE and VAL
1503 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1504 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1505 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1507 /* Find the address range of the current inferior's vsyscall/vDSO, and
1508 write it to *RANGE. If the vsyscall's length can't be determined, a
1509 range with zero length is returned. Returns true if the vsyscall is
1510 found, false otherwise. */
1512 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1513 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1514 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1516 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1517 PROT has GDB_MMAP_PROT_* bitmask format.
1518 Throw an error if it is not possible. Returned address is always valid. */
1520 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1521 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1522 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1524 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1525 Print a warning if it is not possible. */
1527 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1528 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1529 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1531 /* Return string (caller has to use xfree for it) with options for GCC
1532 to produce code for this target, typically "-m64", "-m32" or "-m31".
1533 These options are put before CU's DW_AT_producer compilation options so that
1534 they can override it. Method may also return NULL. */
1536 typedef char * (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1537 extern char * gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1538 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1540 /* Return a regular expression that matches names used by this
1541 architecture in GNU configury triplets. The result is statically
1542 allocated and must not be freed. The default implementation simply
1543 returns the BFD architecture name, which is correct in nearly every
1546 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1547 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1548 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1550 /* Return the size in 8-bit bytes of an addressable memory unit on this
1551 architecture. This corresponds to the number of 8-bit bytes associated to
1552 each address in memory. */
1554 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1555 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1556 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1558 /* Functions for allowing a target to modify its disassembler options. */
1560 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1561 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1563 extern const disasm_options_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1564 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_t
* valid_disassembler_options
);
1566 /* Definition for an unknown syscall, used basically in error-cases. */
1567 #define UNKNOWN_SYSCALL (-1)
1569 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1572 /* Mechanism for co-ordinating the selection of a specific
1575 GDB targets (*-tdep.c) can register an interest in a specific
1576 architecture. Other GDB components can register a need to maintain
1577 per-architecture data.
1579 The mechanisms below ensures that there is only a loose connection
1580 between the set-architecture command and the various GDB
1581 components. Each component can independently register their need
1582 to maintain architecture specific data with gdbarch.
1586 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1589 The more traditional mega-struct containing architecture specific
1590 data for all the various GDB components was also considered. Since
1591 GDB is built from a variable number of (fairly independent)
1592 components it was determined that the global aproach was not
1596 /* Register a new architectural family with GDB.
1598 Register support for the specified ARCHITECTURE with GDB. When
1599 gdbarch determines that the specified architecture has been
1600 selected, the corresponding INIT function is called.
1604 The INIT function takes two parameters: INFO which contains the
1605 information available to gdbarch about the (possibly new)
1606 architecture; ARCHES which is a list of the previously created
1607 ``struct gdbarch'' for this architecture.
1609 The INFO parameter is, as far as possible, be pre-initialized with
1610 information obtained from INFO.ABFD or the global defaults.
1612 The ARCHES parameter is a linked list (sorted most recently used)
1613 of all the previously created architures for this architecture
1614 family. The (possibly NULL) ARCHES->gdbarch can used to access
1615 values from the previously selected architecture for this
1616 architecture family.
1618 The INIT function shall return any of: NULL - indicating that it
1619 doesn't recognize the selected architecture; an existing ``struct
1620 gdbarch'' from the ARCHES list - indicating that the new
1621 architecture is just a synonym for an earlier architecture (see
1622 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1623 - that describes the selected architecture (see gdbarch_alloc()).
1625 The DUMP_TDEP function shall print out all target specific values.
1626 Care should be taken to ensure that the function works in both the
1627 multi-arch and non- multi-arch cases. */
1631 struct gdbarch
*gdbarch
;
1632 struct gdbarch_list
*next
;
1637 /* Use default: NULL (ZERO). */
1638 const struct bfd_arch_info
*bfd_arch_info
;
1640 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1641 enum bfd_endian byte_order
;
1643 enum bfd_endian byte_order_for_code
;
1645 /* Use default: NULL (ZERO). */
1648 /* Use default: NULL (ZERO). */
1651 /* Architecture-specific information. The generic form for targets
1652 that have extra requirements. */
1653 struct gdbarch_tdep_info
*tdep_info
;
1655 /* Architecture-specific target description data. Numerous targets
1656 need only this, so give them an easy way to hold it. */
1657 struct tdesc_arch_data
*tdesc_data
;
1659 /* SPU file system ID. This is a single integer, so using the
1660 generic form would only complicate code. Other targets may
1661 reuse this member if suitable. */
1665 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1666 enum gdb_osabi osabi
;
1668 /* Use default: NULL (ZERO). */
1669 const struct target_desc
*target_desc
;
1672 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1673 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1675 /* DEPRECATED - use gdbarch_register() */
1676 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1678 extern void gdbarch_register (enum bfd_architecture architecture
,
1679 gdbarch_init_ftype
*,
1680 gdbarch_dump_tdep_ftype
*);
1683 /* Return a freshly allocated, NULL terminated, array of the valid
1684 architecture names. Since architectures are registered during the
1685 _initialize phase this function only returns useful information
1686 once initialization has been completed. */
1688 extern const char **gdbarch_printable_names (void);
1691 /* Helper function. Search the list of ARCHES for a GDBARCH that
1692 matches the information provided by INFO. */
1694 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1697 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1698 basic initialization using values obtained from the INFO and TDEP
1699 parameters. set_gdbarch_*() functions are called to complete the
1700 initialization of the object. */
1702 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1705 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1706 It is assumed that the caller freeds the ``struct
1709 extern void gdbarch_free (struct gdbarch
*);
1712 /* Helper function. Allocate memory from the ``struct gdbarch''
1713 obstack. The memory is freed when the corresponding architecture
1716 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
1717 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1718 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1720 /* Duplicate STRING, returning an equivalent string that's allocated on the
1721 obstack associated with GDBARCH. The string is freed when the corresponding
1722 architecture is also freed. */
1724 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1726 /* Helper function. Force an update of the current architecture.
1728 The actual architecture selected is determined by INFO, ``(gdb) set
1729 architecture'' et.al., the existing architecture and BFD's default
1730 architecture. INFO should be initialized to zero and then selected
1731 fields should be updated.
1733 Returns non-zero if the update succeeds. */
1735 extern int gdbarch_update_p (struct gdbarch_info info
);
1738 /* Helper function. Find an architecture matching info.
1740 INFO should be initialized using gdbarch_info_init, relevant fields
1741 set, and then finished using gdbarch_info_fill.
1743 Returns the corresponding architecture, or NULL if no matching
1744 architecture was found. */
1746 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1749 /* Helper function. Set the target gdbarch to "gdbarch". */
1751 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1754 /* Register per-architecture data-pointer.
1756 Reserve space for a per-architecture data-pointer. An identifier
1757 for the reserved data-pointer is returned. That identifer should
1758 be saved in a local static variable.
1760 Memory for the per-architecture data shall be allocated using
1761 gdbarch_obstack_zalloc. That memory will be deleted when the
1762 corresponding architecture object is deleted.
1764 When a previously created architecture is re-selected, the
1765 per-architecture data-pointer for that previous architecture is
1766 restored. INIT() is not re-called.
1768 Multiple registrarants for any architecture are allowed (and
1769 strongly encouraged). */
1771 struct gdbarch_data
;
1773 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1774 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1775 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1776 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1777 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1778 struct gdbarch_data
*data
,
1781 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1784 /* Set the dynamic target-system-dependent parameters (architecture,
1785 byte-order, ...) using information found in the BFD. */
1787 extern void set_gdbarch_from_file (bfd
*);
1790 /* Initialize the current architecture to the "first" one we find on
1793 extern void initialize_current_architecture (void);
1795 /* gdbarch trace variable */
1796 extern unsigned int gdbarch_debug
;
1798 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);