1 /* Cache and manage the values of registers for GDB, the GNU debugger.
3 Copyright (C) 1986-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "reggroups.h"
31 #include <forward_list>
36 * Here is the actual register cache.
39 /* Per-architecture object describing the layout of a register cache.
40 Computed once when the architecture is created. */
42 struct gdbarch_data
*regcache_descr_handle
;
46 /* The architecture this descriptor belongs to. */
47 struct gdbarch
*gdbarch
;
49 /* The raw register cache. Each raw (or hard) register is supplied
50 by the target interface. The raw cache should not contain
51 redundant information - if the PC is constructed from two
52 registers then those registers and not the PC lives in the raw
55 long sizeof_raw_registers
;
57 /* The cooked register space. Each cooked register in the range
58 [0..NR_RAW_REGISTERS) is direct-mapped onto the corresponding raw
59 register. The remaining [NR_RAW_REGISTERS
60 .. NR_COOKED_REGISTERS) (a.k.a. pseudo registers) are mapped onto
61 both raw registers and memory by the architecture methods
62 gdbarch_pseudo_register_read and gdbarch_pseudo_register_write. */
63 int nr_cooked_registers
;
64 long sizeof_cooked_registers
;
66 /* Offset and size (in 8 bit bytes), of each register in the
67 register cache. All registers (including those in the range
68 [NR_RAW_REGISTERS .. NR_COOKED_REGISTERS) are given an
70 long *register_offset
;
71 long *sizeof_register
;
73 /* Cached table containing the type of each register. */
74 struct type
**register_type
;
78 init_regcache_descr (struct gdbarch
*gdbarch
)
81 struct regcache_descr
*descr
;
82 gdb_assert (gdbarch
!= NULL
);
84 /* Create an initial, zero filled, table. */
85 descr
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct regcache_descr
);
86 descr
->gdbarch
= gdbarch
;
88 /* Total size of the register space. The raw registers are mapped
89 directly onto the raw register cache while the pseudo's are
90 either mapped onto raw-registers or memory. */
91 descr
->nr_cooked_registers
= gdbarch_num_regs (gdbarch
)
92 + gdbarch_num_pseudo_regs (gdbarch
);
94 /* Fill in a table of register types. */
96 = GDBARCH_OBSTACK_CALLOC (gdbarch
, descr
->nr_cooked_registers
,
98 for (i
= 0; i
< descr
->nr_cooked_registers
; i
++)
99 descr
->register_type
[i
] = gdbarch_register_type (gdbarch
, i
);
101 /* Construct a strictly RAW register cache. Don't allow pseudo's
102 into the register cache. */
103 descr
->nr_raw_registers
= gdbarch_num_regs (gdbarch
);
105 /* Lay out the register cache.
107 NOTE: cagney/2002-05-22: Only register_type() is used when
108 constructing the register cache. It is assumed that the
109 register's raw size, virtual size and type length are all the
115 descr
->sizeof_register
116 = GDBARCH_OBSTACK_CALLOC (gdbarch
, descr
->nr_cooked_registers
, long);
117 descr
->register_offset
118 = GDBARCH_OBSTACK_CALLOC (gdbarch
, descr
->nr_cooked_registers
, long);
119 for (i
= 0; i
< descr
->nr_raw_registers
; i
++)
121 descr
->sizeof_register
[i
] = TYPE_LENGTH (descr
->register_type
[i
]);
122 descr
->register_offset
[i
] = offset
;
123 offset
+= descr
->sizeof_register
[i
];
124 gdb_assert (MAX_REGISTER_SIZE
>= descr
->sizeof_register
[i
]);
126 /* Set the real size of the raw register cache buffer. */
127 descr
->sizeof_raw_registers
= offset
;
129 for (; i
< descr
->nr_cooked_registers
; i
++)
131 descr
->sizeof_register
[i
] = TYPE_LENGTH (descr
->register_type
[i
]);
132 descr
->register_offset
[i
] = offset
;
133 offset
+= descr
->sizeof_register
[i
];
134 gdb_assert (MAX_REGISTER_SIZE
>= descr
->sizeof_register
[i
]);
136 /* Set the real size of the readonly register cache buffer. */
137 descr
->sizeof_cooked_registers
= offset
;
143 static struct regcache_descr
*
144 regcache_descr (struct gdbarch
*gdbarch
)
146 return (struct regcache_descr
*) gdbarch_data (gdbarch
,
147 regcache_descr_handle
);
150 /* Utility functions returning useful register attributes stored in
151 the regcache descr. */
154 register_type (struct gdbarch
*gdbarch
, int regnum
)
156 struct regcache_descr
*descr
= regcache_descr (gdbarch
);
158 gdb_assert (regnum
>= 0 && regnum
< descr
->nr_cooked_registers
);
159 return descr
->register_type
[regnum
];
162 /* Utility functions returning useful register attributes stored in
163 the regcache descr. */
166 register_size (struct gdbarch
*gdbarch
, int regnum
)
168 struct regcache_descr
*descr
= regcache_descr (gdbarch
);
171 gdb_assert (regnum
>= 0
172 && regnum
< (gdbarch_num_regs (gdbarch
)
173 + gdbarch_num_pseudo_regs (gdbarch
)));
174 size
= descr
->sizeof_register
[regnum
];
178 /* See common/common-regcache.h. */
181 regcache_register_size (const struct regcache
*regcache
, int n
)
183 return register_size (regcache
->arch (), n
);
186 regcache::regcache (gdbarch
*gdbarch
, address_space
*aspace_
,
188 : m_aspace (aspace_
), m_readonly_p (readonly_p_
)
190 gdb_assert (gdbarch
!= NULL
);
191 m_descr
= regcache_descr (gdbarch
);
195 m_registers
= XCNEWVEC (gdb_byte
, m_descr
->sizeof_cooked_registers
);
196 m_register_status
= XCNEWVEC (signed char,
197 m_descr
->nr_cooked_registers
);
201 m_registers
= XCNEWVEC (gdb_byte
, m_descr
->sizeof_raw_registers
);
202 m_register_status
= XCNEWVEC (signed char,
203 m_descr
->nr_raw_registers
);
205 m_ptid
= minus_one_ptid
;
208 static enum register_status
209 do_cooked_read (void *src
, int regnum
, gdb_byte
*buf
)
211 struct regcache
*regcache
= (struct regcache
*) src
;
213 return regcache_cooked_read (regcache
, regnum
, buf
);
216 regcache::regcache (readonly_t
, const regcache
&src
)
217 : regcache (src
.arch (), src
.aspace (), true)
219 gdb_assert (!src
.m_readonly_p
);
220 save (do_cooked_read
, (void *) &src
);
224 regcache::arch () const
226 return m_descr
->gdbarch
;
229 /* See regcache.h. */
232 regcache_get_ptid (const struct regcache
*regcache
)
234 gdb_assert (!ptid_equal (regcache
->ptid (), minus_one_ptid
));
236 return regcache
->ptid ();
239 /* Cleanup class for invalidating a register. */
241 class regcache_invalidator
245 regcache_invalidator (struct regcache
*regcache
, int regnum
)
246 : m_regcache (regcache
),
251 ~regcache_invalidator ()
253 if (m_regcache
!= nullptr)
254 regcache_invalidate (m_regcache
, m_regnum
);
257 DISABLE_COPY_AND_ASSIGN (regcache_invalidator
);
261 m_regcache
= nullptr;
266 struct regcache
*m_regcache
;
270 struct address_space
*
271 get_regcache_aspace (const struct regcache
*regcache
)
273 return regcache
->aspace ();
276 /* Return a pointer to register REGNUM's buffer cache. */
279 regcache::register_buffer (int regnum
) const
281 return m_registers
+ m_descr
->register_offset
[regnum
];
285 regcache_save (struct regcache
*regcache
,
286 regcache_cooked_read_ftype
*cooked_read
, void *src
)
288 regcache
->save (cooked_read
, src
);
292 regcache::save (regcache_cooked_read_ftype
*cooked_read
,
295 struct gdbarch
*gdbarch
= m_descr
->gdbarch
;
298 /* The DST should be `read-only', if it wasn't then the save would
299 end up trying to write the register values back out to the
301 gdb_assert (m_readonly_p
);
302 /* Clear the dest. */
303 memset (m_registers
, 0, m_descr
->sizeof_cooked_registers
);
304 memset (m_register_status
, 0, m_descr
->nr_cooked_registers
);
305 /* Copy over any registers (identified by their membership in the
306 save_reggroup) and mark them as valid. The full [0 .. gdbarch_num_regs +
307 gdbarch_num_pseudo_regs) range is checked since some architectures need
308 to save/restore `cooked' registers that live in memory. */
309 for (regnum
= 0; regnum
< m_descr
->nr_cooked_registers
; regnum
++)
311 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, save_reggroup
))
313 gdb_byte
*dst_buf
= register_buffer (regnum
);
314 enum register_status status
= cooked_read (src
, regnum
, dst_buf
);
316 gdb_assert (status
!= REG_UNKNOWN
);
318 if (status
!= REG_VALID
)
319 memset (dst_buf
, 0, register_size (gdbarch
, regnum
));
321 m_register_status
[regnum
] = status
;
327 regcache::restore (struct regcache
*src
)
329 struct gdbarch
*gdbarch
= m_descr
->gdbarch
;
332 /* The dst had better not be read-only. If it is, the `restore'
333 doesn't make much sense. */
334 gdb_assert (!m_readonly_p
);
335 gdb_assert (src
->m_readonly_p
);
336 /* Copy over any registers, being careful to only restore those that
337 were both saved and need to be restored. The full [0 .. gdbarch_num_regs
338 + gdbarch_num_pseudo_regs) range is checked since some architectures need
339 to save/restore `cooked' registers that live in memory. */
340 for (regnum
= 0; regnum
< m_descr
->nr_cooked_registers
; regnum
++)
342 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, restore_reggroup
))
344 if (src
->m_register_status
[regnum
] == REG_VALID
)
345 cooked_write (regnum
, src
->register_buffer (regnum
));
351 regcache_cpy (struct regcache
*dst
, struct regcache
*src
)
353 gdb_assert (src
!= NULL
&& dst
!= NULL
);
354 gdb_assert (src
->m_descr
->gdbarch
== dst
->m_descr
->gdbarch
);
355 gdb_assert (src
!= dst
);
356 gdb_assert (src
->m_readonly_p
&& !dst
->m_readonly_p
);
362 regcache_dup (struct regcache
*src
)
364 return new regcache (regcache::readonly
, *src
);
368 regcache_register_status (const struct regcache
*regcache
, int regnum
)
370 gdb_assert (regcache
!= NULL
);
371 return regcache
->get_register_status (regnum
);
375 regcache::get_register_status (int regnum
) const
377 gdb_assert (regnum
>= 0);
379 gdb_assert (regnum
< m_descr
->nr_cooked_registers
);
381 gdb_assert (regnum
< m_descr
->nr_raw_registers
);
383 return (enum register_status
) m_register_status
[regnum
];
387 regcache_invalidate (struct regcache
*regcache
, int regnum
)
389 gdb_assert (regcache
!= NULL
);
390 regcache
->invalidate (regnum
);
394 regcache::invalidate (int regnum
)
396 gdb_assert (!m_readonly_p
);
397 assert_regnum (regnum
);
398 m_register_status
[regnum
] = REG_UNKNOWN
;
402 regcache::assert_regnum (int regnum
) const
404 gdb_assert (regnum
>= 0 && regnum
< m_descr
->nr_raw_registers
);
407 /* Global structure containing the current regcache. */
409 /* NOTE: this is a write-through cache. There is no "dirty" bit for
410 recording if the register values have been changed (eg. by the
411 user). Therefore all registers must be written back to the
412 target when appropriate. */
413 std::forward_list
<regcache
*> regcache::current_regcache
;
416 get_thread_arch_aspace_regcache (ptid_t ptid
, struct gdbarch
*gdbarch
,
417 struct address_space
*aspace
)
419 for (const auto ®cache
: regcache::current_regcache
)
420 if (ptid_equal (regcache
->ptid (), ptid
) && regcache
->arch () == gdbarch
)
423 regcache
*new_regcache
= new regcache (gdbarch
, aspace
, false);
425 regcache::current_regcache
.push_front (new_regcache
);
426 new_regcache
->set_ptid (ptid
);
432 get_thread_arch_regcache (ptid_t ptid
, struct gdbarch
*gdbarch
)
434 address_space
*aspace
= target_thread_address_space (ptid
);
436 return get_thread_arch_aspace_regcache (ptid
, gdbarch
, aspace
);
439 static ptid_t current_thread_ptid
;
440 static struct gdbarch
*current_thread_arch
;
443 get_thread_regcache (ptid_t ptid
)
445 if (!current_thread_arch
|| !ptid_equal (current_thread_ptid
, ptid
))
447 current_thread_ptid
= ptid
;
448 current_thread_arch
= target_thread_architecture (ptid
);
451 return get_thread_arch_regcache (ptid
, current_thread_arch
);
455 get_current_regcache (void)
457 return get_thread_regcache (inferior_ptid
);
460 /* See common/common-regcache.h. */
463 get_thread_regcache_for_ptid (ptid_t ptid
)
465 return get_thread_regcache (ptid
);
468 /* Observer for the target_changed event. */
471 regcache_observer_target_changed (struct target_ops
*target
)
473 registers_changed ();
476 /* Update global variables old ptids to hold NEW_PTID if they were
479 regcache::regcache_thread_ptid_changed (ptid_t old_ptid
, ptid_t new_ptid
)
481 for (auto ®cache
: regcache::current_regcache
)
483 if (ptid_equal (regcache
->ptid (), old_ptid
))
484 regcache
->set_ptid (new_ptid
);
488 /* Low level examining and depositing of registers.
490 The caller is responsible for making sure that the inferior is
491 stopped before calling the fetching routines, or it will get
492 garbage. (a change from GDB version 3, in which the caller got the
493 value from the last stop). */
495 /* REGISTERS_CHANGED ()
497 Indicate that registers may have changed, so invalidate the cache. */
500 registers_changed_ptid (ptid_t ptid
)
502 for (auto oit
= regcache::current_regcache
.before_begin (),
503 it
= std::next (oit
);
504 it
!= regcache::current_regcache
.end ();
507 if (ptid_match ((*it
)->ptid (), ptid
))
510 it
= regcache::current_regcache
.erase_after (oit
);
516 if (ptid_match (current_thread_ptid
, ptid
))
518 current_thread_ptid
= null_ptid
;
519 current_thread_arch
= NULL
;
522 if (ptid_match (inferior_ptid
, ptid
))
524 /* We just deleted the regcache of the current thread. Need to
525 forget about any frames we have cached, too. */
526 reinit_frame_cache ();
531 registers_changed (void)
533 registers_changed_ptid (minus_one_ptid
);
535 /* Force cleanup of any alloca areas if using C alloca instead of
536 a builtin alloca. This particular call is used to clean up
537 areas allocated by low level target code which may build up
538 during lengthy interactions between gdb and the target before
539 gdb gives control to the user (ie watchpoints). */
544 regcache_raw_update (struct regcache
*regcache
, int regnum
)
546 gdb_assert (regcache
!= NULL
);
548 regcache
->raw_update (regnum
);
552 regcache::raw_update (int regnum
)
554 assert_regnum (regnum
);
556 /* Make certain that the register cache is up-to-date with respect
557 to the current thread. This switching shouldn't be necessary
558 only there is still only one target side register cache. Sigh!
559 On the bright side, at least there is a regcache object. */
561 if (!m_readonly_p
&& get_register_status (regnum
) == REG_UNKNOWN
)
563 target_fetch_registers (this, regnum
);
565 /* A number of targets can't access the whole set of raw
566 registers (because the debug API provides no means to get at
568 if (m_register_status
[regnum
] == REG_UNKNOWN
)
569 m_register_status
[regnum
] = REG_UNAVAILABLE
;
574 regcache_raw_read (struct regcache
*regcache
, int regnum
, gdb_byte
*buf
)
576 return regcache
->raw_read (regnum
, buf
);
580 regcache::raw_read (int regnum
, gdb_byte
*buf
)
582 gdb_assert (buf
!= NULL
);
585 if (m_register_status
[regnum
] != REG_VALID
)
586 memset (buf
, 0, m_descr
->sizeof_register
[regnum
]);
588 memcpy (buf
, register_buffer (regnum
),
589 m_descr
->sizeof_register
[regnum
]);
591 return (enum register_status
) m_register_status
[regnum
];
595 regcache_raw_read_signed (struct regcache
*regcache
, int regnum
, LONGEST
*val
)
597 gdb_assert (regcache
!= NULL
);
598 return regcache
->raw_read (regnum
, val
);
601 template<typename T
, typename
>
603 regcache::raw_read (int regnum
, T
*val
)
606 enum register_status status
;
608 assert_regnum (regnum
);
609 buf
= (gdb_byte
*) alloca (m_descr
->sizeof_register
[regnum
]);
610 status
= raw_read (regnum
, buf
);
611 if (status
== REG_VALID
)
612 *val
= extract_integer
<T
> (buf
,
613 m_descr
->sizeof_register
[regnum
],
614 gdbarch_byte_order (m_descr
->gdbarch
));
621 regcache_raw_read_unsigned (struct regcache
*regcache
, int regnum
,
624 gdb_assert (regcache
!= NULL
);
625 return regcache
->raw_read (regnum
, val
);
629 regcache_raw_write_signed (struct regcache
*regcache
, int regnum
, LONGEST val
)
631 gdb_assert (regcache
!= NULL
);
632 regcache
->raw_write (regnum
, val
);
635 template<typename T
, typename
>
637 regcache::raw_write (int regnum
, T val
)
641 assert_regnum (regnum
);
642 buf
= (gdb_byte
*) alloca (m_descr
->sizeof_register
[regnum
]);
643 store_integer (buf
, m_descr
->sizeof_register
[regnum
],
644 gdbarch_byte_order (m_descr
->gdbarch
), val
);
645 raw_write (regnum
, buf
);
649 regcache_raw_write_unsigned (struct regcache
*regcache
, int regnum
,
652 gdb_assert (regcache
!= NULL
);
653 regcache
->raw_write (regnum
, val
);
657 regcache_raw_get_signed (struct regcache
*regcache
, int regnum
)
660 enum register_status status
;
662 status
= regcache_raw_read_signed (regcache
, regnum
, &value
);
663 if (status
== REG_UNAVAILABLE
)
664 throw_error (NOT_AVAILABLE_ERROR
,
665 _("Register %d is not available"), regnum
);
670 regcache_cooked_read (struct regcache
*regcache
, int regnum
, gdb_byte
*buf
)
672 return regcache
->cooked_read (regnum
, buf
);
676 regcache::cooked_read (int regnum
, gdb_byte
*buf
)
678 gdb_assert (regnum
>= 0);
679 gdb_assert (regnum
< m_descr
->nr_cooked_registers
);
680 if (regnum
< m_descr
->nr_raw_registers
)
681 return raw_read (regnum
, buf
);
682 else if (m_readonly_p
683 && m_register_status
[regnum
] != REG_UNKNOWN
)
685 /* Read-only register cache, perhaps the cooked value was
687 if (m_register_status
[regnum
] == REG_VALID
)
688 memcpy (buf
, register_buffer (regnum
),
689 m_descr
->sizeof_register
[regnum
]);
691 memset (buf
, 0, m_descr
->sizeof_register
[regnum
]);
693 return (enum register_status
) m_register_status
[regnum
];
695 else if (gdbarch_pseudo_register_read_value_p (m_descr
->gdbarch
))
697 struct value
*mark
, *computed
;
698 enum register_status result
= REG_VALID
;
700 mark
= value_mark ();
702 computed
= gdbarch_pseudo_register_read_value (m_descr
->gdbarch
,
704 if (value_entirely_available (computed
))
705 memcpy (buf
, value_contents_raw (computed
),
706 m_descr
->sizeof_register
[regnum
]);
709 memset (buf
, 0, m_descr
->sizeof_register
[regnum
]);
710 result
= REG_UNAVAILABLE
;
713 value_free_to_mark (mark
);
718 return gdbarch_pseudo_register_read (m_descr
->gdbarch
, this,
723 regcache_cooked_read_value (struct regcache
*regcache
, int regnum
)
725 return regcache
->cooked_read_value (regnum
);
729 regcache::cooked_read_value (int regnum
)
731 gdb_assert (regnum
>= 0);
732 gdb_assert (regnum
< m_descr
->nr_cooked_registers
);
734 if (regnum
< m_descr
->nr_raw_registers
735 || (m_readonly_p
&& m_register_status
[regnum
] != REG_UNKNOWN
)
736 || !gdbarch_pseudo_register_read_value_p (m_descr
->gdbarch
))
738 struct value
*result
;
740 result
= allocate_value (register_type (m_descr
->gdbarch
, regnum
));
741 VALUE_LVAL (result
) = lval_register
;
742 VALUE_REGNUM (result
) = regnum
;
744 /* It is more efficient in general to do this delegation in this
745 direction than in the other one, even though the value-based
747 if (cooked_read (regnum
,
748 value_contents_raw (result
)) == REG_UNAVAILABLE
)
749 mark_value_bytes_unavailable (result
, 0,
750 TYPE_LENGTH (value_type (result
)));
755 return gdbarch_pseudo_register_read_value (m_descr
->gdbarch
,
760 regcache_cooked_read_signed (struct regcache
*regcache
, int regnum
,
763 gdb_assert (regcache
!= NULL
);
764 return regcache
->cooked_read (regnum
, val
);
767 template<typename T
, typename
>
769 regcache::cooked_read (int regnum
, T
*val
)
771 enum register_status status
;
774 gdb_assert (regnum
>= 0 && regnum
< m_descr
->nr_cooked_registers
);
775 buf
= (gdb_byte
*) alloca (m_descr
->sizeof_register
[regnum
]);
776 status
= cooked_read (regnum
, buf
);
777 if (status
== REG_VALID
)
778 *val
= extract_integer
<T
> (buf
, m_descr
->sizeof_register
[regnum
],
779 gdbarch_byte_order (m_descr
->gdbarch
));
786 regcache_cooked_read_unsigned (struct regcache
*regcache
, int regnum
,
789 gdb_assert (regcache
!= NULL
);
790 return regcache
->cooked_read (regnum
, val
);
794 regcache_cooked_write_signed (struct regcache
*regcache
, int regnum
,
797 gdb_assert (regcache
!= NULL
);
798 regcache
->cooked_write (regnum
, val
);
801 template<typename T
, typename
>
803 regcache::cooked_write (int regnum
, T val
)
807 gdb_assert (regnum
>=0 && regnum
< m_descr
->nr_cooked_registers
);
808 buf
= (gdb_byte
*) alloca (m_descr
->sizeof_register
[regnum
]);
809 store_integer (buf
, m_descr
->sizeof_register
[regnum
],
810 gdbarch_byte_order (m_descr
->gdbarch
), val
);
811 cooked_write (regnum
, buf
);
815 regcache_cooked_write_unsigned (struct regcache
*regcache
, int regnum
,
818 gdb_assert (regcache
!= NULL
);
819 regcache
->cooked_write (regnum
, val
);
822 /* See regcache.h. */
825 regcache_raw_set_cached_value (struct regcache
*regcache
, int regnum
,
828 regcache
->raw_set_cached_value (regnum
, buf
);
832 regcache::raw_set_cached_value (int regnum
, const gdb_byte
*buf
)
834 memcpy (register_buffer (regnum
), buf
,
835 m_descr
->sizeof_register
[regnum
]);
836 m_register_status
[regnum
] = REG_VALID
;
840 regcache_raw_write (struct regcache
*regcache
, int regnum
,
843 gdb_assert (regcache
!= NULL
&& buf
!= NULL
);
844 regcache
->raw_write (regnum
, buf
);
848 regcache::raw_write (int regnum
, const gdb_byte
*buf
)
851 gdb_assert (buf
!= NULL
);
852 assert_regnum (regnum
);
853 gdb_assert (!m_readonly_p
);
855 /* On the sparc, writing %g0 is a no-op, so we don't even want to
856 change the registers array if something writes to this register. */
857 if (gdbarch_cannot_store_register (arch (), regnum
))
860 /* If we have a valid copy of the register, and new value == old
861 value, then don't bother doing the actual store. */
862 if (get_register_status (regnum
) == REG_VALID
863 && (memcmp (register_buffer (regnum
), buf
,
864 m_descr
->sizeof_register
[regnum
]) == 0))
867 target_prepare_to_store (this);
868 raw_set_cached_value (regnum
, buf
);
870 /* Invalidate the register after it is written, in case of a
872 regcache_invalidator
invalidator (this, regnum
);
874 target_store_registers (this, regnum
);
876 /* The target did not throw an error so we can discard invalidating
878 invalidator
.release ();
882 regcache_cooked_write (struct regcache
*regcache
, int regnum
,
885 regcache
->cooked_write (regnum
, buf
);
889 regcache::cooked_write (int regnum
, const gdb_byte
*buf
)
891 gdb_assert (regnum
>= 0);
892 gdb_assert (regnum
< m_descr
->nr_cooked_registers
);
893 if (regnum
< m_descr
->nr_raw_registers
)
894 raw_write (regnum
, buf
);
896 gdbarch_pseudo_register_write (m_descr
->gdbarch
, this,
900 /* Perform a partial register transfer using a read, modify, write
903 typedef void (regcache_read_ftype
) (struct regcache
*regcache
, int regnum
,
905 typedef void (regcache_write_ftype
) (struct regcache
*regcache
, int regnum
,
909 regcache::xfer_part (int regnum
, int offset
, int len
, void *in
,
910 const void *out
, bool is_raw
)
912 struct gdbarch
*gdbarch
= arch ();
913 gdb_byte
*reg
= (gdb_byte
*) alloca (register_size (gdbarch
, regnum
));
915 gdb_assert (offset
>= 0 && offset
<= m_descr
->sizeof_register
[regnum
]);
916 gdb_assert (len
>= 0 && offset
+ len
<= m_descr
->sizeof_register
[regnum
]);
917 /* Something to do? */
918 if (offset
+ len
== 0)
920 /* Read (when needed) ... */
923 || offset
+ len
< m_descr
->sizeof_register
[regnum
])
925 enum register_status status
;
928 status
= raw_read (regnum
, reg
);
930 status
= cooked_read (regnum
, reg
);
931 if (status
!= REG_VALID
)
936 memcpy (in
, reg
+ offset
, len
);
938 memcpy (reg
+ offset
, out
, len
);
939 /* ... write (when needed). */
943 raw_write (regnum
, reg
);
945 cooked_write (regnum
, reg
);
952 regcache_raw_read_part (struct regcache
*regcache
, int regnum
,
953 int offset
, int len
, gdb_byte
*buf
)
955 return regcache
->raw_read_part (regnum
, offset
, len
, buf
);
959 regcache::raw_read_part (int regnum
, int offset
, int len
, gdb_byte
*buf
)
961 assert_regnum (regnum
);
962 return xfer_part (regnum
, offset
, len
, buf
, NULL
, true);
966 regcache_raw_write_part (struct regcache
*regcache
, int regnum
,
967 int offset
, int len
, const gdb_byte
*buf
)
969 regcache
->raw_write_part (regnum
, offset
, len
, buf
);
973 regcache::raw_write_part (int regnum
, int offset
, int len
,
976 assert_regnum (regnum
);
977 xfer_part (regnum
, offset
, len
, NULL
, buf
, true);
981 regcache_cooked_read_part (struct regcache
*regcache
, int regnum
,
982 int offset
, int len
, gdb_byte
*buf
)
984 return regcache
->cooked_read_part (regnum
, offset
, len
, buf
);
989 regcache::cooked_read_part (int regnum
, int offset
, int len
, gdb_byte
*buf
)
991 gdb_assert (regnum
>= 0 && regnum
< m_descr
->nr_cooked_registers
);
992 return xfer_part (regnum
, offset
, len
, buf
, NULL
, false);
996 regcache_cooked_write_part (struct regcache
*regcache
, int regnum
,
997 int offset
, int len
, const gdb_byte
*buf
)
999 regcache
->cooked_write_part (regnum
, offset
, len
, buf
);
1003 regcache::cooked_write_part (int regnum
, int offset
, int len
,
1004 const gdb_byte
*buf
)
1006 gdb_assert (regnum
>= 0 && regnum
< m_descr
->nr_cooked_registers
);
1007 xfer_part (regnum
, offset
, len
, NULL
, buf
, false);
1010 /* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */
1013 regcache_raw_supply (struct regcache
*regcache
, int regnum
, const void *buf
)
1015 gdb_assert (regcache
!= NULL
);
1016 regcache
->raw_supply (regnum
, buf
);
1020 regcache::raw_supply (int regnum
, const void *buf
)
1025 assert_regnum (regnum
);
1026 gdb_assert (!m_readonly_p
);
1028 regbuf
= register_buffer (regnum
);
1029 size
= m_descr
->sizeof_register
[regnum
];
1033 memcpy (regbuf
, buf
, size
);
1034 m_register_status
[regnum
] = REG_VALID
;
1038 /* This memset not strictly necessary, but better than garbage
1039 in case the register value manages to escape somewhere (due
1040 to a bug, no less). */
1041 memset (regbuf
, 0, size
);
1042 m_register_status
[regnum
] = REG_UNAVAILABLE
;
1046 /* Supply register REGNUM to REGCACHE. Value to supply is an integer stored at
1047 address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. If
1048 the register size is greater than ADDR_LEN, then the integer will be sign or
1049 zero extended. If the register size is smaller than the integer, then the
1050 most significant bytes of the integer will be truncated. */
1053 regcache::raw_supply_integer (int regnum
, const gdb_byte
*addr
, int addr_len
,
1056 enum bfd_endian byte_order
= gdbarch_byte_order (m_descr
->gdbarch
);
1060 assert_regnum (regnum
);
1061 gdb_assert (!m_readonly_p
);
1063 regbuf
= register_buffer (regnum
);
1064 regsize
= m_descr
->sizeof_register
[regnum
];
1066 copy_integer_to_size (regbuf
, regsize
, addr
, addr_len
, is_signed
,
1068 m_register_status
[regnum
] = REG_VALID
;
1071 /* Supply register REGNUM with zeroed value to REGCACHE. This is not the same
1072 as calling raw_supply with NULL (which will set the state to
1076 regcache::raw_supply_zeroed (int regnum
)
1081 assert_regnum (regnum
);
1082 gdb_assert (!m_readonly_p
);
1084 regbuf
= register_buffer (regnum
);
1085 size
= m_descr
->sizeof_register
[regnum
];
1087 memset (regbuf
, 0, size
);
1088 m_register_status
[regnum
] = REG_VALID
;
1091 /* Collect register REGNUM from REGCACHE and store its contents in BUF. */
1094 regcache_raw_collect (const struct regcache
*regcache
, int regnum
, void *buf
)
1096 gdb_assert (regcache
!= NULL
&& buf
!= NULL
);
1097 regcache
->raw_collect (regnum
, buf
);
1101 regcache::raw_collect (int regnum
, void *buf
) const
1106 gdb_assert (buf
!= NULL
);
1107 assert_regnum (regnum
);
1109 regbuf
= register_buffer (regnum
);
1110 size
= m_descr
->sizeof_register
[regnum
];
1111 memcpy (buf
, regbuf
, size
);
1114 /* Transfer a single or all registers belonging to a certain register
1115 set to or from a buffer. This is the main worker function for
1116 regcache_supply_regset and regcache_collect_regset. */
1118 /* Collect register REGNUM from REGCACHE. Store collected value as an integer
1119 at address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED.
1120 If ADDR_LEN is greater than the register size, then the integer will be sign
1121 or zero extended. If ADDR_LEN is smaller than the register size, then the
1122 most significant bytes of the integer will be truncated. */
1125 regcache::raw_collect_integer (int regnum
, gdb_byte
*addr
, int addr_len
,
1126 bool is_signed
) const
1128 enum bfd_endian byte_order
= gdbarch_byte_order (m_descr
->gdbarch
);
1129 const gdb_byte
*regbuf
;
1132 assert_regnum (regnum
);
1134 regbuf
= register_buffer (regnum
);
1135 regsize
= m_descr
->sizeof_register
[regnum
];
1137 copy_integer_to_size (addr
, addr_len
, regbuf
, regsize
, is_signed
,
1142 regcache::transfer_regset (const struct regset
*regset
,
1143 struct regcache
*out_regcache
,
1144 int regnum
, const void *in_buf
,
1145 void *out_buf
, size_t size
) const
1147 const struct regcache_map_entry
*map
;
1148 int offs
= 0, count
;
1150 for (map
= (const struct regcache_map_entry
*) regset
->regmap
;
1151 (count
= map
->count
) != 0;
1154 int regno
= map
->regno
;
1155 int slot_size
= map
->size
;
1157 if (slot_size
== 0 && regno
!= REGCACHE_MAP_SKIP
)
1158 slot_size
= m_descr
->sizeof_register
[regno
];
1160 if (regno
== REGCACHE_MAP_SKIP
1162 && (regnum
< regno
|| regnum
>= regno
+ count
)))
1163 offs
+= count
* slot_size
;
1165 else if (regnum
== -1)
1166 for (; count
--; regno
++, offs
+= slot_size
)
1168 if (offs
+ slot_size
> size
)
1172 raw_collect (regno
, (gdb_byte
*) out_buf
+ offs
);
1174 out_regcache
->raw_supply (regno
, in_buf
1175 ? (const gdb_byte
*) in_buf
+ offs
1180 /* Transfer a single register and return. */
1181 offs
+= (regnum
- regno
) * slot_size
;
1182 if (offs
+ slot_size
> size
)
1186 raw_collect (regnum
, (gdb_byte
*) out_buf
+ offs
);
1188 out_regcache
->raw_supply (regnum
, in_buf
1189 ? (const gdb_byte
*) in_buf
+ offs
1196 /* Supply register REGNUM from BUF to REGCACHE, using the register map
1197 in REGSET. If REGNUM is -1, do this for all registers in REGSET.
1198 If BUF is NULL, set the register(s) to "unavailable" status. */
1201 regcache_supply_regset (const struct regset
*regset
,
1202 struct regcache
*regcache
,
1203 int regnum
, const void *buf
, size_t size
)
1205 regcache
->supply_regset (regset
, regnum
, buf
, size
);
1209 regcache::supply_regset (const struct regset
*regset
,
1210 int regnum
, const void *buf
, size_t size
)
1212 transfer_regset (regset
, this, regnum
, buf
, NULL
, size
);
1215 /* Collect register REGNUM from REGCACHE to BUF, using the register
1216 map in REGSET. If REGNUM is -1, do this for all registers in
1220 regcache_collect_regset (const struct regset
*regset
,
1221 const struct regcache
*regcache
,
1222 int regnum
, void *buf
, size_t size
)
1224 regcache
->collect_regset (regset
, regnum
, buf
, size
);
1228 regcache::collect_regset (const struct regset
*regset
,
1229 int regnum
, void *buf
, size_t size
) const
1231 transfer_regset (regset
, NULL
, regnum
, NULL
, buf
, size
);
1235 /* Special handling for register PC. */
1238 regcache_read_pc (struct regcache
*regcache
)
1240 struct gdbarch
*gdbarch
= regcache
->arch ();
1244 if (gdbarch_read_pc_p (gdbarch
))
1245 pc_val
= gdbarch_read_pc (gdbarch
, regcache
);
1246 /* Else use per-frame method on get_current_frame. */
1247 else if (gdbarch_pc_regnum (gdbarch
) >= 0)
1251 if (regcache_cooked_read_unsigned (regcache
,
1252 gdbarch_pc_regnum (gdbarch
),
1253 &raw_val
) == REG_UNAVAILABLE
)
1254 throw_error (NOT_AVAILABLE_ERROR
, _("PC register is not available"));
1256 pc_val
= gdbarch_addr_bits_remove (gdbarch
, raw_val
);
1259 internal_error (__FILE__
, __LINE__
,
1260 _("regcache_read_pc: Unable to find PC"));
1265 regcache_write_pc (struct regcache
*regcache
, CORE_ADDR pc
)
1267 struct gdbarch
*gdbarch
= regcache
->arch ();
1269 if (gdbarch_write_pc_p (gdbarch
))
1270 gdbarch_write_pc (gdbarch
, regcache
, pc
);
1271 else if (gdbarch_pc_regnum (gdbarch
) >= 0)
1272 regcache_cooked_write_unsigned (regcache
,
1273 gdbarch_pc_regnum (gdbarch
), pc
);
1275 internal_error (__FILE__
, __LINE__
,
1276 _("regcache_write_pc: Unable to update PC"));
1278 /* Writing the PC (for instance, from "load") invalidates the
1280 reinit_frame_cache ();
1284 regcache::debug_print_register (const char *func
, int regno
)
1286 struct gdbarch
*gdbarch
= arch ();
1288 fprintf_unfiltered (gdb_stdlog
, "%s ", func
);
1289 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
)
1290 && gdbarch_register_name (gdbarch
, regno
) != NULL
1291 && gdbarch_register_name (gdbarch
, regno
)[0] != '\0')
1292 fprintf_unfiltered (gdb_stdlog
, "(%s)",
1293 gdbarch_register_name (gdbarch
, regno
));
1295 fprintf_unfiltered (gdb_stdlog
, "(%d)", regno
);
1296 if (regno
>= 0 && regno
< gdbarch_num_regs (gdbarch
))
1298 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
1299 int size
= register_size (gdbarch
, regno
);
1300 gdb_byte
*buf
= register_buffer (regno
);
1302 fprintf_unfiltered (gdb_stdlog
, " = ");
1303 for (int i
= 0; i
< size
; i
++)
1305 fprintf_unfiltered (gdb_stdlog
, "%02x", buf
[i
]);
1307 if (size
<= sizeof (LONGEST
))
1309 ULONGEST val
= extract_unsigned_integer (buf
, size
, byte_order
);
1311 fprintf_unfiltered (gdb_stdlog
, " %s %s",
1312 core_addr_to_string_nz (val
), plongest (val
));
1315 fprintf_unfiltered (gdb_stdlog
, "\n");
1319 reg_flush_command (char *command
, int from_tty
)
1321 /* Force-flush the register cache. */
1322 registers_changed ();
1324 printf_filtered (_("Register cache flushed.\n"));
1328 regcache::dump (ui_file
*file
, enum regcache_dump_what what_to_dump
)
1330 struct gdbarch
*gdbarch
= m_descr
->gdbarch
;
1332 int footnote_nr
= 0;
1333 int footnote_register_size
= 0;
1334 int footnote_register_offset
= 0;
1335 int footnote_register_type_name_null
= 0;
1336 long register_offset
= 0;
1338 gdb_assert (m_descr
->nr_cooked_registers
1339 == (gdbarch_num_regs (gdbarch
)
1340 + gdbarch_num_pseudo_regs (gdbarch
)));
1342 for (regnum
= -1; regnum
< m_descr
->nr_cooked_registers
; regnum
++)
1346 fprintf_unfiltered (file
, " %-10s", "Name");
1349 const char *p
= gdbarch_register_name (gdbarch
, regnum
);
1353 else if (p
[0] == '\0')
1355 fprintf_unfiltered (file
, " %-10s", p
);
1360 fprintf_unfiltered (file
, " %4s", "Nr");
1362 fprintf_unfiltered (file
, " %4d", regnum
);
1364 /* Relative number. */
1366 fprintf_unfiltered (file
, " %4s", "Rel");
1367 else if (regnum
< gdbarch_num_regs (gdbarch
))
1368 fprintf_unfiltered (file
, " %4d", regnum
);
1370 fprintf_unfiltered (file
, " %4d",
1371 (regnum
- gdbarch_num_regs (gdbarch
)));
1375 fprintf_unfiltered (file
, " %6s ", "Offset");
1378 fprintf_unfiltered (file
, " %6ld",
1379 m_descr
->register_offset
[regnum
]);
1380 if (register_offset
!= m_descr
->register_offset
[regnum
]
1382 && (m_descr
->register_offset
[regnum
]
1383 != (m_descr
->register_offset
[regnum
- 1]
1384 + m_descr
->sizeof_register
[regnum
- 1])))
1387 if (!footnote_register_offset
)
1388 footnote_register_offset
= ++footnote_nr
;
1389 fprintf_unfiltered (file
, "*%d", footnote_register_offset
);
1392 fprintf_unfiltered (file
, " ");
1393 register_offset
= (m_descr
->register_offset
[regnum
]
1394 + m_descr
->sizeof_register
[regnum
]);
1399 fprintf_unfiltered (file
, " %5s ", "Size");
1401 fprintf_unfiltered (file
, " %5ld", m_descr
->sizeof_register
[regnum
]);
1406 std::string name_holder
;
1412 static const char blt
[] = "builtin_type";
1414 t
= TYPE_NAME (register_type (arch (), regnum
));
1417 if (!footnote_register_type_name_null
)
1418 footnote_register_type_name_null
= ++footnote_nr
;
1419 name_holder
= string_printf ("*%d",
1420 footnote_register_type_name_null
);
1421 t
= name_holder
.c_str ();
1423 /* Chop a leading builtin_type. */
1424 if (startswith (t
, blt
))
1427 fprintf_unfiltered (file
, " %-15s", t
);
1430 /* Leading space always present. */
1431 fprintf_unfiltered (file
, " ");
1434 if (what_to_dump
== regcache_dump_raw
)
1437 fprintf_unfiltered (file
, "Raw value");
1438 else if (regnum
>= m_descr
->nr_raw_registers
)
1439 fprintf_unfiltered (file
, "<cooked>");
1440 else if (get_register_status (regnum
) == REG_UNKNOWN
)
1441 fprintf_unfiltered (file
, "<invalid>");
1442 else if (get_register_status (regnum
) == REG_UNAVAILABLE
)
1443 fprintf_unfiltered (file
, "<unavailable>");
1446 raw_update (regnum
);
1447 print_hex_chars (file
, register_buffer (regnum
),
1448 m_descr
->sizeof_register
[regnum
],
1449 gdbarch_byte_order (gdbarch
), true);
1453 /* Value, cooked. */
1454 if (what_to_dump
== regcache_dump_cooked
)
1457 fprintf_unfiltered (file
, "Cooked value");
1460 const gdb_byte
*buf
= NULL
;
1461 enum register_status status
;
1462 struct value
*value
= NULL
;
1464 if (regnum
< m_descr
->nr_raw_registers
)
1466 raw_update (regnum
);
1467 status
= get_register_status (regnum
);
1468 buf
= register_buffer (regnum
);
1472 value
= cooked_read_value (regnum
);
1474 if (!value_optimized_out (value
)
1475 && value_entirely_available (value
))
1478 buf
= value_contents_all (value
);
1481 status
= REG_UNAVAILABLE
;
1484 if (status
== REG_UNKNOWN
)
1485 fprintf_unfiltered (file
, "<invalid>");
1486 else if (status
== REG_UNAVAILABLE
)
1487 fprintf_unfiltered (file
, "<unavailable>");
1489 print_hex_chars (file
, buf
,
1490 m_descr
->sizeof_register
[regnum
],
1491 gdbarch_byte_order (gdbarch
), true);
1495 release_value (value
);
1501 /* Group members. */
1502 if (what_to_dump
== regcache_dump_groups
)
1505 fprintf_unfiltered (file
, "Groups");
1508 const char *sep
= "";
1509 struct reggroup
*group
;
1511 for (group
= reggroup_next (gdbarch
, NULL
);
1513 group
= reggroup_next (gdbarch
, group
))
1515 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
1517 fprintf_unfiltered (file
,
1518 "%s%s", sep
, reggroup_name (group
));
1525 /* Remote packet configuration. */
1526 if (what_to_dump
== regcache_dump_remote
)
1530 fprintf_unfiltered (file
, "Rmt Nr g/G Offset");
1532 else if (regnum
< m_descr
->nr_raw_registers
)
1536 if (remote_register_number_and_offset (arch (), regnum
,
1538 fprintf_unfiltered (file
, "%7d %11d", pnum
, poffset
);
1542 fprintf_unfiltered (file
, "\n");
1545 if (footnote_register_size
)
1546 fprintf_unfiltered (file
, "*%d: Inconsistent register sizes.\n",
1547 footnote_register_size
);
1548 if (footnote_register_offset
)
1549 fprintf_unfiltered (file
, "*%d: Inconsistent register offsets.\n",
1550 footnote_register_offset
);
1551 if (footnote_register_type_name_null
)
1552 fprintf_unfiltered (file
,
1553 "*%d: Register type's name NULL.\n",
1554 footnote_register_type_name_null
);
1558 regcache_print (const char *args
, enum regcache_dump_what what_to_dump
)
1560 /* Where to send output. */
1568 if (!file
.open (args
, "w"))
1569 perror_with_name (_("maintenance print architecture"));
1573 if (target_has_registers
)
1574 get_current_regcache ()->dump (out
, what_to_dump
);
1577 /* For the benefit of "maint print registers" & co when
1578 debugging an executable, allow dumping a regcache even when
1579 there is no thread selected / no registers. */
1580 regcache
dummy_regs (target_gdbarch (), nullptr);
1581 dummy_regs
.dump (out
, what_to_dump
);
1586 maintenance_print_registers (const char *args
, int from_tty
)
1588 regcache_print (args
, regcache_dump_none
);
1592 maintenance_print_raw_registers (const char *args
, int from_tty
)
1594 regcache_print (args
, regcache_dump_raw
);
1598 maintenance_print_cooked_registers (const char *args
, int from_tty
)
1600 regcache_print (args
, regcache_dump_cooked
);
1604 maintenance_print_register_groups (const char *args
, int from_tty
)
1606 regcache_print (args
, regcache_dump_groups
);
1610 maintenance_print_remote_registers (const char *args
, int from_tty
)
1612 regcache_print (args
, regcache_dump_remote
);
1616 #include "selftest.h"
1618 namespace selftests
{
1620 class regcache_access
: public regcache
1624 /* Return the number of elements in current_regcache. */
1627 current_regcache_size ()
1629 return std::distance (regcache::current_regcache
.begin (),
1630 regcache::current_regcache
.end ());
1635 current_regcache_test (void)
1637 /* It is empty at the start. */
1638 SELF_CHECK (regcache_access::current_regcache_size () == 0);
1640 ptid_t
ptid1 (1), ptid2 (2), ptid3 (3);
1642 /* Get regcache from ptid1, a new regcache is added to
1643 current_regcache. */
1644 regcache
*regcache
= get_thread_arch_aspace_regcache (ptid1
,
1648 SELF_CHECK (regcache
!= NULL
);
1649 SELF_CHECK (regcache
->ptid () == ptid1
);
1650 SELF_CHECK (regcache_access::current_regcache_size () == 1);
1652 /* Get regcache from ptid2, a new regcache is added to
1653 current_regcache. */
1654 regcache
= get_thread_arch_aspace_regcache (ptid2
,
1657 SELF_CHECK (regcache
!= NULL
);
1658 SELF_CHECK (regcache
->ptid () == ptid2
);
1659 SELF_CHECK (regcache_access::current_regcache_size () == 2);
1661 /* Get regcache from ptid3, a new regcache is added to
1662 current_regcache. */
1663 regcache
= get_thread_arch_aspace_regcache (ptid3
,
1666 SELF_CHECK (regcache
!= NULL
);
1667 SELF_CHECK (regcache
->ptid () == ptid3
);
1668 SELF_CHECK (regcache_access::current_regcache_size () == 3);
1670 /* Get regcache from ptid2 again, nothing is added to
1671 current_regcache. */
1672 regcache
= get_thread_arch_aspace_regcache (ptid2
,
1675 SELF_CHECK (regcache
!= NULL
);
1676 SELF_CHECK (regcache
->ptid () == ptid2
);
1677 SELF_CHECK (regcache_access::current_regcache_size () == 3);
1679 /* Mark ptid2 is changed, so regcache of ptid2 should be removed from
1680 current_regcache. */
1681 registers_changed_ptid (ptid2
);
1682 SELF_CHECK (regcache_access::current_regcache_size () == 2);
1685 } // namespace selftests
1686 #endif /* GDB_SELF_TEST */
1689 _initialize_regcache (void)
1691 regcache_descr_handle
1692 = gdbarch_data_register_post_init (init_regcache_descr
);
1694 observer_attach_target_changed (regcache_observer_target_changed
);
1695 observer_attach_thread_ptid_changed (regcache::regcache_thread_ptid_changed
);
1697 add_com ("flushregs", class_maintenance
, reg_flush_command
,
1698 _("Force gdb to flush its register cache (maintainer command)"));
1700 add_cmd ("registers", class_maintenance
, maintenance_print_registers
,
1701 _("Print the internal register configuration.\n"
1702 "Takes an optional file parameter."), &maintenanceprintlist
);
1703 add_cmd ("raw-registers", class_maintenance
,
1704 maintenance_print_raw_registers
,
1705 _("Print the internal register configuration "
1706 "including raw values.\n"
1707 "Takes an optional file parameter."), &maintenanceprintlist
);
1708 add_cmd ("cooked-registers", class_maintenance
,
1709 maintenance_print_cooked_registers
,
1710 _("Print the internal register configuration "
1711 "including cooked values.\n"
1712 "Takes an optional file parameter."), &maintenanceprintlist
);
1713 add_cmd ("register-groups", class_maintenance
,
1714 maintenance_print_register_groups
,
1715 _("Print the internal register configuration "
1716 "including each register's group.\n"
1717 "Takes an optional file parameter."),
1718 &maintenanceprintlist
);
1719 add_cmd ("remote-registers", class_maintenance
,
1720 maintenance_print_remote_registers
, _("\
1721 Print the internal register configuration including each register's\n\
1722 remote register number and buffer offset in the g/G packets.\n\
1723 Takes an optional file parameter."),
1724 &maintenanceprintlist
);
1727 selftests::register_test ("current_regcache", selftests::current_regcache_test
);