1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
3 /* Dynamic architecture support for GDB, the GNU debugger.
5 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
6 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
44 struct minimal_symbol
;
48 struct disassemble_info
;
51 struct bp_target_info
;
53 struct displaced_step_closure
;
54 struct core_regset_section
;
56 extern struct gdbarch
*current_gdbarch
;
59 /* The following are pre-initialized by GDBARCH. */
61 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
62 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
64 extern int gdbarch_byte_order (struct gdbarch
*gdbarch
);
65 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
67 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
68 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
70 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
71 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
74 /* The following are initialized by the target dependent code. */
76 /* The bit byte-order has to do just with numbering of bits in debugging symbols
77 and such. Conceptually, it's quite separate from byte/word byte order. */
79 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
80 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
82 /* Number of bits in a char or unsigned char for the target machine.
83 Just like CHAR_BIT in <limits.h> but describes the target machine.
84 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
86 Number of bits in a short or unsigned short for the target machine. */
88 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
89 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
91 /* Number of bits in an int or unsigned int for the target machine. */
93 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
94 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
96 /* Number of bits in a long or unsigned long for the target machine. */
98 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
99 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
101 /* Number of bits in a long long or unsigned long long for the target
104 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
105 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
107 /* The ABI default bit-size and format for "float", "double", and "long
108 double". These bit/format pairs should eventually be combined into
109 a single object. For the moment, just initialize them as a pair.
110 Each format describes both the big and little endian layouts (if
113 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
114 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
116 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
117 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
119 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
120 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
122 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
123 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
125 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
126 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
128 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
129 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
131 /* For most targets, a pointer on the target and its representation as an
132 address in GDB have the same size and "look the same". For such a
133 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
134 / addr_bit will be set from it.
136 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
137 also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
140 ptr_bit is the size of a pointer on the target */
142 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
143 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
145 /* addr_bit is the size of a target address as represented in gdb */
147 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
148 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
150 /* One if `char' acts like `signed char', zero if `unsigned char'. */
152 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
153 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
155 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
157 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
158 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
159 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
161 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
163 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
164 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
165 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
167 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
168 whole scheme for dealing with "frames" and "frame pointers" needs a
169 serious shakedown. */
171 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
172 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
173 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
175 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
177 typedef void (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
178 extern void gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
179 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
181 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
183 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
184 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
185 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
187 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
188 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
190 /* This macro gives the number of pseudo-registers that live in the
191 register namespace but do not get fetched or stored on the target.
192 These pseudo-registers may be aliases for other registers,
193 combinations of other registers, or they may be computed by GDB. */
195 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
196 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
198 /* GDB's standard (or well known) register numbers. These can map onto
199 a real register or a pseudo (computed) register or not be defined at
201 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
203 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
204 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
206 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
207 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
209 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
210 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
212 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
213 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
215 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
217 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
218 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
219 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
221 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
223 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
224 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
225 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
227 /* Convert from an sdb register number to an internal gdb register number. */
229 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
230 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
231 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
233 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
235 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
236 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
237 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
239 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
240 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
241 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
243 /* Return the type of a register specified by the architecture. Only
244 the register cache should call this function directly; others should
245 use "register_type". */
247 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
249 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
250 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
251 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
253 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
255 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
257 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
258 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
259 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
261 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
262 deprecated_fp_regnum. */
264 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
265 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
267 /* See gdbint.texinfo. See infcall.c. */
269 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
271 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
);
272 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
);
273 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
275 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
276 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
278 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
280 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
);
281 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
);
282 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
284 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
285 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
286 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
288 extern int gdbarch_print_float_info_p (struct gdbarch
*gdbarch
);
290 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
291 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
292 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
294 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
296 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
297 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
298 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
300 /* MAP a GDB RAW register number onto a simulator register number. See
301 also include/...-sim.h. */
303 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
304 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
305 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
307 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
308 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
309 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
311 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
312 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
313 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
315 /* setjmp/longjmp support. */
317 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
319 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
320 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
321 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
323 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
324 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
326 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
327 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
328 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
330 typedef void (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
331 extern void gdbarch_register_to_value (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
332 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
334 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
335 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
336 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
338 /* Construct a value representing the contents of register REGNUM in
339 frame FRAME, interpreted as type TYPE. The routine needs to
340 allocate and return a struct value with all value attributes
341 (but not the value contents) filled in. */
343 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct type
*type
, int regnum
, struct frame_info
*frame
);
344 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_info
*frame
);
345 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
347 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct type
*type
, const gdb_byte
*buf
);
348 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
349 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
351 typedef void (gdbarch_address_to_pointer_ftype
) (struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
352 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
353 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
355 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
357 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
358 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
359 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
361 /* Return the return-value convention that will be used by FUNCTYPE
362 to return a value of type VALTYPE. FUNCTYPE may be NULL in which
363 case the return convention is computed based only on VALTYPE.
365 If READBUF is not NULL, extract the return value and save it in this buffer.
367 If WRITEBUF is not NULL, it contains a return value which will be
368 stored into the appropriate register. This can be used when we want
369 to force the value returned by a function (see the "return" command
372 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
374 typedef enum return_value_convention (gdbarch_return_value_ftype
) (struct gdbarch
*gdbarch
, struct type
*functype
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
375 extern enum return_value_convention
gdbarch_return_value (struct gdbarch
*gdbarch
, struct type
*functype
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
376 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
378 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
379 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
380 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
382 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
383 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
384 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
386 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
387 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
388 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
390 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
392 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
393 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
394 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
396 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
397 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
398 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
400 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
401 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
402 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
404 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
405 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
407 /* A function can be addressed by either it's "pointer" (possibly a
408 descriptor address) or "entry point" (first executable instruction).
409 The method "convert_from_func_ptr_addr" converting the former to the
410 latter. gdbarch_deprecated_function_start_offset is being used to implement
411 a simplified subset of that functionality - the function's address
412 corresponds to the "function pointer" and the function's start
413 corresponds to the "function entry point" - and hence is redundant. */
415 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
416 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
418 /* Return the remote protocol register number associated with this
419 register. Normally the identity mapping. */
421 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
422 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
423 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
425 /* Fetch the target specific address used to represent a load module. */
427 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
429 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
430 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
431 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
433 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
434 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
436 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
438 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
439 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
440 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
442 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
444 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
445 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
446 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
448 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
449 frame-base. Enable frame-base before frame-unwind. */
451 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
453 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
454 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
455 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
457 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
459 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
460 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
461 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
463 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
464 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
465 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
467 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
468 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
470 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
471 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
472 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
474 /* On some machines there are bits in addresses which are not really
475 part of the address, but are used by the kernel, the hardware, etc.
476 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
477 we get a "real" address such as one would find in a symbol table.
478 This is used only for addresses of instructions, and even then I'm
479 not sure it's used in all contexts. It exists to deal with there
480 being a few stray bits in the PC which would mislead us, not as some
481 sort of generic thing to handle alignment or segmentation (it's
482 possible it should be in TARGET_READ_PC instead). */
484 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (CORE_ADDR addr
);
485 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
486 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
488 /* It is not at all clear why gdbarch_smash_text_address is not folded into
489 gdbarch_addr_bits_remove. */
491 typedef CORE_ADDR (gdbarch_smash_text_address_ftype
) (CORE_ADDR addr
);
492 extern CORE_ADDR
gdbarch_smash_text_address (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
493 extern void set_gdbarch_smash_text_address (struct gdbarch
*gdbarch
, gdbarch_smash_text_address_ftype
*smash_text_address
);
495 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
496 indicates if the target needs software single step. An ISA method to
499 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
500 breakpoints using the breakpoint system instead of blatting memory directly
503 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
504 target can single step. If not, then implement single step using breakpoints.
506 A return value of 1 means that the software_single_step breakpoints
507 were inserted; 0 means they were not. */
509 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
511 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
512 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
513 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
515 /* Return non-zero if the processor is executing a delay slot and a
516 further single-step is needed before the instruction finishes. */
518 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
520 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
521 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
522 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
524 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
525 disassembler. Perhaps objdump can handle it? */
527 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
528 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
529 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
531 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
532 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
533 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
535 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
536 evaluates non-zero, this is the address where the debugger will place
537 a step-resume breakpoint to get us past the dynamic linker. */
539 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
540 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
541 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
543 /* Some systems also have trampoline code for returning from shared libs. */
545 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (CORE_ADDR pc
, char *name
);
546 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, char *name
);
547 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
549 /* A target might have problems with watchpoints as soon as the stack
550 frame of the current function has been destroyed. This mostly happens
551 as the first action in a funtion's epilogue. in_function_epilogue_p()
552 is defined to return a non-zero value if either the given addr is one
553 instruction after the stack destroying instruction up to the trailing
554 return instruction or if we can figure out that the stack frame has
555 already been invalidated regardless of the value of addr. Targets
556 which don't suffer from that problem could just let this functionality
559 typedef int (gdbarch_in_function_epilogue_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
560 extern int gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
561 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, gdbarch_in_function_epilogue_p_ftype
*in_function_epilogue_p
);
563 /* Given a vector of command-line arguments, return a newly allocated
564 string which, when passed to the create_inferior function, will be
565 parsed (on Unix systems, by the shell) to yield the same vector.
566 This function should call error() if the argument vector is not
567 representable for this target or if this target does not support
568 command-line arguments.
569 ARGC is the number of elements in the vector.
570 ARGV is an array of strings, one per argument. */
572 typedef char * (gdbarch_construct_inferior_arguments_ftype
) (struct gdbarch
*gdbarch
, int argc
, char **argv
);
573 extern char * gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
);
574 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, gdbarch_construct_inferior_arguments_ftype
*construct_inferior_arguments
);
576 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
577 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
578 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
580 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
581 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
582 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
584 extern const char * gdbarch_name_of_malloc (struct gdbarch
*gdbarch
);
585 extern void set_gdbarch_name_of_malloc (struct gdbarch
*gdbarch
, const char * name_of_malloc
);
587 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
588 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
590 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
591 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
593 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
595 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
596 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
597 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
599 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
601 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
602 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
603 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
);
605 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
607 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
608 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
609 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
);
611 /* Is a register in a group */
613 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
614 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
615 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
617 /* Fetch the pointer to the ith function argument. */
619 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
621 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
622 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
623 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
625 /* Return the appropriate register set for a core file section with
626 name SECT_NAME and size SECT_SIZE. */
628 extern int gdbarch_regset_from_core_section_p (struct gdbarch
*gdbarch
);
630 typedef const struct regset
* (gdbarch_regset_from_core_section_ftype
) (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
631 extern const struct regset
* gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
632 extern void set_gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, gdbarch_regset_from_core_section_ftype
*regset_from_core_section
);
634 /* Supported register notes in a core file. */
636 extern struct core_regset_section
* gdbarch_core_regset_sections (struct gdbarch
*gdbarch
);
637 extern void set_gdbarch_core_regset_sections (struct gdbarch
*gdbarch
, struct core_regset_section
* core_regset_sections
);
639 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
640 core file into buffer READBUF with length LEN. */
642 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
644 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
645 extern LONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
646 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
648 /* If the elements of C++ vtables are in-place function descriptors rather
649 than normal function pointers (which may point to code or a descriptor),
652 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
653 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
655 /* Set if the least significant bit of the delta is used instead of the least
656 significant bit of the pfn for pointers to virtual member functions. */
658 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
659 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
661 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
663 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch
*gdbarch
);
665 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
666 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
667 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
669 /* The maximum length of an instruction on this architecture. */
671 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
673 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
674 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
676 /* Copy the instruction at FROM to TO, and make any adjustments
677 necessary to single-step it at that address.
679 REGS holds the state the thread's registers will have before
680 executing the copied instruction; the PC in REGS will refer to FROM,
681 not the copy at TO. The caller should update it to point at TO later.
683 Return a pointer to data of the architecture's choice to be passed
684 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
685 the instruction's effects have been completely simulated, with the
686 resulting state written back to REGS.
688 For a general explanation of displaced stepping and how GDB uses it,
689 see the comments in infrun.c.
691 The TO area is only guaranteed to have space for
692 gdbarch_max_insn_length (arch) bytes, so this function must not
693 write more bytes than that to that area.
695 If you do not provide this function, GDB assumes that the
696 architecture does not support displaced stepping.
698 If your architecture doesn't need to adjust instructions before
699 single-stepping them, consider using simple_displaced_step_copy_insn
702 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
704 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
705 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
706 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
708 /* Fix up the state resulting from successfully single-stepping a
709 displaced instruction, to give the result we would have gotten from
710 stepping the instruction in its original location.
712 REGS is the register state resulting from single-stepping the
713 displaced instruction.
715 CLOSURE is the result from the matching call to
716 gdbarch_displaced_step_copy_insn.
718 If you provide gdbarch_displaced_step_copy_insn.but not this
719 function, then GDB assumes that no fixup is needed after
720 single-stepping the instruction.
722 For a general explanation of displaced stepping and how GDB uses it,
723 see the comments in infrun.c. */
725 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
727 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
728 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
729 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
731 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
733 If you provide gdbarch_displaced_step_copy_insn, you must provide
734 this function as well.
736 If your architecture uses closures that don't need to be freed, then
737 you can use simple_displaced_step_free_closure here.
739 For a general explanation of displaced stepping and how GDB uses it,
740 see the comments in infrun.c. */
742 typedef void (gdbarch_displaced_step_free_closure_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
743 extern void gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
744 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, gdbarch_displaced_step_free_closure_ftype
*displaced_step_free_closure
);
746 /* Return the address of an appropriate place to put displaced
747 instructions while we step over them. There need only be one such
748 place, since we're only stepping one thread over a breakpoint at a
751 For a general explanation of displaced stepping and how GDB uses it,
752 see the comments in infrun.c. */
754 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
755 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
756 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
758 /* Refresh overlay mapped state for section OSECT. */
760 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
762 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
763 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
764 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
766 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
768 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
769 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
770 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
772 /* Handle special encoding of static variables in stabs debug info. */
774 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
776 typedef char * (gdbarch_static_transform_name_ftype
) (char *name
);
777 extern char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, char *name
);
778 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
780 /* Set if the address in N_SO or N_FUN stabs may be zero. */
782 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
783 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
785 /* Signal translation: translate inferior's signal (host's) number into
786 GDB's representation. */
788 typedef enum target_signal (gdbarch_target_signal_from_host_ftype
) (struct gdbarch
*gdbarch
, int signo
);
789 extern enum target_signal
gdbarch_target_signal_from_host (struct gdbarch
*gdbarch
, int signo
);
790 extern void set_gdbarch_target_signal_from_host (struct gdbarch
*gdbarch
, gdbarch_target_signal_from_host_ftype
*target_signal_from_host
);
792 /* Signal translation: translate GDB's signal number into inferior's host
795 typedef int (gdbarch_target_signal_to_host_ftype
) (struct gdbarch
*gdbarch
, enum target_signal ts
);
796 extern int gdbarch_target_signal_to_host (struct gdbarch
*gdbarch
, enum target_signal ts
);
797 extern void set_gdbarch_target_signal_to_host (struct gdbarch
*gdbarch
, gdbarch_target_signal_to_host_ftype
*target_signal_to_host
);
799 /* Record architecture-specific information from the symbol table. */
801 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
803 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
804 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
805 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
807 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
810 /* Mechanism for co-ordinating the selection of a specific
813 GDB targets (*-tdep.c) can register an interest in a specific
814 architecture. Other GDB components can register a need to maintain
815 per-architecture data.
817 The mechanisms below ensures that there is only a loose connection
818 between the set-architecture command and the various GDB
819 components. Each component can independently register their need
820 to maintain architecture specific data with gdbarch.
824 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
827 The more traditional mega-struct containing architecture specific
828 data for all the various GDB components was also considered. Since
829 GDB is built from a variable number of (fairly independent)
830 components it was determined that the global aproach was not
834 /* Register a new architectural family with GDB.
836 Register support for the specified ARCHITECTURE with GDB. When
837 gdbarch determines that the specified architecture has been
838 selected, the corresponding INIT function is called.
842 The INIT function takes two parameters: INFO which contains the
843 information available to gdbarch about the (possibly new)
844 architecture; ARCHES which is a list of the previously created
845 ``struct gdbarch'' for this architecture.
847 The INFO parameter is, as far as possible, be pre-initialized with
848 information obtained from INFO.ABFD or the global defaults.
850 The ARCHES parameter is a linked list (sorted most recently used)
851 of all the previously created architures for this architecture
852 family. The (possibly NULL) ARCHES->gdbarch can used to access
853 values from the previously selected architecture for this
854 architecture family. The global ``current_gdbarch'' shall not be
857 The INIT function shall return any of: NULL - indicating that it
858 doesn't recognize the selected architecture; an existing ``struct
859 gdbarch'' from the ARCHES list - indicating that the new
860 architecture is just a synonym for an earlier architecture (see
861 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
862 - that describes the selected architecture (see gdbarch_alloc()).
864 The DUMP_TDEP function shall print out all target specific values.
865 Care should be taken to ensure that the function works in both the
866 multi-arch and non- multi-arch cases. */
870 struct gdbarch
*gdbarch
;
871 struct gdbarch_list
*next
;
876 /* Use default: NULL (ZERO). */
877 const struct bfd_arch_info
*bfd_arch_info
;
879 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
882 /* Use default: NULL (ZERO). */
885 /* Use default: NULL (ZERO). */
886 struct gdbarch_tdep_info
*tdep_info
;
888 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
889 enum gdb_osabi osabi
;
891 /* Use default: NULL (ZERO). */
892 const struct target_desc
*target_desc
;
895 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
896 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
898 /* DEPRECATED - use gdbarch_register() */
899 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
901 extern void gdbarch_register (enum bfd_architecture architecture
,
902 gdbarch_init_ftype
*,
903 gdbarch_dump_tdep_ftype
*);
906 /* Return a freshly allocated, NULL terminated, array of the valid
907 architecture names. Since architectures are registered during the
908 _initialize phase this function only returns useful information
909 once initialization has been completed. */
911 extern const char **gdbarch_printable_names (void);
914 /* Helper function. Search the list of ARCHES for a GDBARCH that
915 matches the information provided by INFO. */
917 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
920 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
921 basic initialization using values obtained from the INFO and TDEP
922 parameters. set_gdbarch_*() functions are called to complete the
923 initialization of the object. */
925 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
928 /* Helper function. Free a partially-constructed ``struct gdbarch''.
929 It is assumed that the caller freeds the ``struct
932 extern void gdbarch_free (struct gdbarch
*);
935 /* Helper function. Allocate memory from the ``struct gdbarch''
936 obstack. The memory is freed when the corresponding architecture
939 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
940 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
941 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
944 /* Helper function. Force an update of the current architecture.
946 The actual architecture selected is determined by INFO, ``(gdb) set
947 architecture'' et.al., the existing architecture and BFD's default
948 architecture. INFO should be initialized to zero and then selected
949 fields should be updated.
951 Returns non-zero if the update succeeds */
953 extern int gdbarch_update_p (struct gdbarch_info info
);
956 /* Helper function. Find an architecture matching info.
958 INFO should be initialized using gdbarch_info_init, relevant fields
959 set, and then finished using gdbarch_info_fill.
961 Returns the corresponding architecture, or NULL if no matching
962 architecture was found. "current_gdbarch" is not updated. */
964 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
967 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
969 FIXME: kettenis/20031124: Of the functions that follow, only
970 gdbarch_from_bfd is supposed to survive. The others will
971 dissappear since in the future GDB will (hopefully) be truly
972 multi-arch. However, for now we're still stuck with the concept of
973 a single active architecture. */
975 extern void deprecated_current_gdbarch_select_hack (struct gdbarch
*gdbarch
);
978 /* Register per-architecture data-pointer.
980 Reserve space for a per-architecture data-pointer. An identifier
981 for the reserved data-pointer is returned. That identifer should
982 be saved in a local static variable.
984 Memory for the per-architecture data shall be allocated using
985 gdbarch_obstack_zalloc. That memory will be deleted when the
986 corresponding architecture object is deleted.
988 When a previously created architecture is re-selected, the
989 per-architecture data-pointer for that previous architecture is
990 restored. INIT() is not re-called.
992 Multiple registrarants for any architecture are allowed (and
993 strongly encouraged). */
997 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
998 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
999 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1000 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1001 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1002 struct gdbarch_data
*data
,
1005 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1008 /* Set the dynamic target-system-dependent parameters (architecture,
1009 byte-order, ...) using information found in the BFD */
1011 extern void set_gdbarch_from_file (bfd
*);
1014 /* Initialize the current architecture to the "first" one we find on
1017 extern void initialize_current_architecture (void);
1019 /* gdbarch trace variable */
1020 extern int gdbarch_debug
;
1022 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);