Hi,
To_prepare_to_store can make process record control the register
change operation before set the value of regcache in function
"regcache_raw_write". But it can't get the regnum.
So I change it to "to_store_registers". It can get the regnum. And if
record want cancel the operation the operation. It can invalidate the
value with itself.
2008-10-04 Hui Zhu <teawater@gmail.com>
Change from "to_prepare_to_store" to "to_store_registers".
* record.c (record_beneath_to_prepare_to_store): Removed.
(record_beneath_to_store_registers): New function pointer.
Instead "record_beneath_to_prepare_to_store". Will point
to the low strata target "to_store_registers" function.
(record_prepare_to_store): Removed.
(record_store_registers): New function.
Instead "record_prepare_to_store". Record the change of
registers from GDB.
(init_record_ops): Change record_prepare_to_store to
record_store_registers.
* record.h (record_beneath_to_prepare_to_store): Removed.
(record_beneath_to_store_registers): New extern.
* target.c (update_current_target): Change
record_beneath_to_prepare_to_store to
record_beneath_to_store_registers.
Thanks,
Hui
------------------------------------------------------------------------
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,23 @@
+2008-10-04 Hui Zhu <teawater@gmail.com>
+
+ Change from "to_prepare_to_store" to "to_store_registers".
+
+ * record.c (record_beneath_to_prepare_to_store): Removed.
+ (record_beneath_to_store_registers): New function pointer.
+ Instead "record_beneath_to_prepare_to_store". Will point
+ to the low strata target "to_store_registers" function.
+ (record_prepare_to_store): Removed.
+ (record_store_registers): New function.
+ Instead "record_prepare_to_store". Record the change of
+ registers from GDB.
+ (init_record_ops): Change record_prepare_to_store to
+ record_store_registers.
+ * record.h (record_beneath_to_prepare_to_store): Removed.
+ (record_beneath_to_store_registers): New extern.
+ * target.c (update_current_target): Change
+ record_beneath_to_prepare_to_store to
+ record_beneath_to_store_registers.
+
2008-10-02 Michael Snyder <msnyder@vmware.com>
* reverse.c (reverse-continue): Remove a comma from docs string,
--- a/record.c
+++ b/record.c
@@ -56,7 +56,7 @@ extern struct bp_location *bp_location_c
/* The real beneath function pointers. */
void (*record_beneath_to_resume) (ptid_t, int, enum target_signal);
ptid_t (*record_beneath_to_wait) (ptid_t, struct target_waitstatus *);
-void (*record_beneath_to_prepare_to_store) (struct regcache *);
+void (*record_beneath_to_store_registers) (struct regcache *, int regno);
LONGEST (*record_beneath_to_xfer_partial) (struct target_ops * ops,
enum target_object object,
const char *annex,
@@ -805,23 +805,51 @@ record_registers_change (struct regcache
}
}
-/* XXX: I don't know how to do if GDB call function
target_store_registers
- without call function target_prepare_to_store. */
-
static void
-record_prepare_to_store (struct regcache *regcache)
+record_store_registers (struct regcache *regcache, int regno)
{
if (!record_not_record)
{
if (RECORD_IS_REPLAY)
{
+ int n;
struct cleanup *old_cleanups;
+
/* Let user choice if he want to write register or not. */
- if (!nquery (_("Becuse GDB is in replay mode, changing the value
of a register will destroy the record from this point forward. Change
register %s?"),
- gdbarch_register_name (get_regcache_arch
- (regcache),
-
record_regcache_raw_write_regnum)))
+ if (regno < 0)
+ {
+ n =
+ nquery (_
+ ("Becuse GDB is in replay mode, changing the value
of a register will destroy the record from this point forward. Change all
register?"));
+ }
+ else
+ {
+ n =
+ nquery (_
+ ("Becuse GDB is in replay mode, changing the value
of a register will destroy the record from this point forward. Change
register %s?"),
+ gdbarch_register_name (get_regcache_arch
(regcache),
+ regno));
+ }
+
+ if (!n)
{
+ /* Invalidate the value of regcache that set in function
+ "regcache_raw_write". */
+ if (regno < 0)
+ {
+ int i;
+ for (i = 0;
+ i < gdbarch_num_regs (get_regcache_arch
(regcache));
+ i++)
+ {
+ regcache_invalidate (regcache, i);
+ }
+ }
+ else
+ {
+ regcache_invalidate (regcache, regno);
+ }
+
error (_("Record: record cancel the operation."));
}
@@ -829,9 +857,9 @@ record_prepare_to_store (struct regcache
record_list_release_next ();
}
- record_registers_change (regcache,
record_regcache_raw_write_regnum);
+ record_registers_change (regcache, regno);
}
- record_beneath_to_prepare_to_store (regcache);
+ record_beneath_to_store_registers (regcache, regno);
}
/* record_xfer_partial -- behavior is conditional on RECORD_IS_REPLAY.
@@ -964,7 +992,7 @@ init_record_ops (void)
record_ops.to_mourn_inferior = record_mourn_inferior;
record_ops.to_kill = record_kill;
record_ops.to_create_inferior = find_default_create_inferior; /*
Make record suppport command "run". */
- record_ops.to_prepare_to_store = record_prepare_to_store;
+ record_ops.to_store_registers = record_store_registers;
record_ops.to_xfer_partial = record_xfer_partial;
record_ops.to_insert_breakpoint = record_insert_breakpoint;
record_ops.to_remove_breakpoint = record_remove_breakpoint;
--- a/record.h
+++ b/record.h
@@ -75,7 +75,6 @@ extern struct regcache *record_regcache;
extern struct target_ops record_ops;
extern int record_resume_step;
-extern int record_regcache_raw_write_regnum;
extern enum exec_direction_kind record_execdir;
extern int record_arch_list_add_reg (int num);
@@ -86,7 +85,7 @@ extern void record_not_record_set (void)
extern void (*record_beneath_to_resume) (ptid_t, int, enum
target_signal);
extern ptid_t (*record_beneath_to_wait) (ptid_t, struct target_waitstatus
*);
-extern void (*record_beneath_to_prepare_to_store) (struct regcache *);
+extern void (*record_beneath_to_store_registers) (struct regcache *, int
regno);
extern LONGEST (*record_beneath_to_xfer_partial) (struct target_ops *
ops,
enum target_object
object,
const char *annex,
--- a/target.c
+++ b/target.c
@@ -380,7 +380,7 @@ update_current_target (void)
current_target.FIELD = (TARGET)->FIELD
record_beneath_to_resume = NULL;
- record_beneath_to_prepare_to_store = NULL;
+ record_beneath_to_store_registers = NULL;
record_beneath_to_xfer_partial = NULL;
record_beneath_to_insert_breakpoint = NULL;
record_beneath_to_remove_breakpoint = NULL;
@@ -485,9 +485,9 @@ update_current_target (void)
{
record_beneath_to_wait = t->to_wait;
}
- if (!record_beneath_to_prepare_to_store)
+ if (!record_beneath_to_store_registers)
{
- record_beneath_to_prepare_to_store =
t->to_prepare_to_store;
+ record_beneath_to_store_registers = t->to_store_registers;
}
if (!record_beneath_to_xfer_partial)
{