void (*store_registers) (struct regcache *regcache, int regno);
+ /* Prepare to read or write memory from the inferior process.
+ Targets use this to do what is necessary to get the state of the
+ inferior such that it is possible to access memory.
+
+ This should generally only be called from client facing routines,
+ such as gdb_read_memory/gdb_write_memory, or the insert_point
+ callbacks.
+
+ Like `read_memory' and `write_memory' below, returns 0 on success
+ and errno on failure. */
+
+ int (*prepare_to_access_memory) (void);
+
+ /* Undo the effects of prepare_to_access_memory. */
+
+ void (*done_accessing_memory) (void);
+
/* Read memory from the inferior process. This should generally be
called through read_inferior_memory, which handles breakpoint shadowing.
ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options,
int connected_wait);
+#define prepare_to_access_memory() \
+ (the_target->prepare_to_access_memory \
+ ? (*the_target->prepare_to_access_memory) () \
+ : 0)
+
+#define done_accessing_memory() \
+ do \
+ { \
+ if (the_target->done_accessing_memory) \
+ (*the_target->done_accessing_memory) (); \
+ } while (0)
+
int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len);
int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,