#include "symtab.h"
#include "dcache.h"
#include "memattr.h"
+#include "vec.h"
enum strata
{
TARGET_OBJECT_AVR,
/* Transfer up-to LEN bytes of memory starting at OFFSET. */
TARGET_OBJECT_MEMORY,
+ /* Memory, avoiding GDB's data cache and trusting the executable.
+ Target implementations of to_xfer_partial never need to handle
+ this object, and most callers should not use it. */
+ TARGET_OBJECT_RAW_MEMORY,
/* Kernel Unwind Table. See "ia64-tdep.c". */
TARGET_OBJECT_UNWIND_TABLE,
/* Transfer auxilliary vector. */
TARGET_OBJECT_AUXV,
/* StackGhost cookie. See "sparc-tdep.c". */
- TARGET_OBJECT_WCOOKIE
+ TARGET_OBJECT_WCOOKIE,
+ /* Target memory map in XML format. */
+ TARGET_OBJECT_MEMORY_MAP,
+ /* Flash memory. This object can be used to write contents to
+ a previously erased flash memory. Using it without erasing
+ flash can have unexpected results. Addresses are physical
+ address on target, and not relative to flash start. */
+ TARGET_OBJECT_FLASH
/* Possible future objects: TARGET_OBJECT_FILE, TARGET_OBJECT_PROC, ... */
};
const char *annex, const gdb_byte *buf,
ULONGEST offset, LONGEST len);
+/* Similar to target_write, except that it also calls PROGRESS with
+ the number of bytes written and the opaque BATON after every
+ successful partial write (and before the first write). This is
+ useful for progress reporting and user interaction while writing
+ data. To abort the transfer, the progress callback can throw an
+ exception. */
+
+LONGEST target_write_with_progress (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, const gdb_byte *buf,
+ ULONGEST offset, LONGEST len,
+ void (*progress) (ULONGEST, void *),
+ void *baton);
+
/* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will
be read using OPS. The return value will be -1 if the transfer
fails or is not supported; 0 if the object is empty; or the length
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, LONGEST len);
+ /* Returns the memory map for the target. A return value of NULL
+ means that no memory map is available. If a memory address
+ does not fall within any returned regions, it's assumed to be
+ RAM. The returned memory regions should not overlap.
+
+ The order of regions does not matter; target_memory_map will
+ sort regions by starting address. For that reason, this
+ function should not be called directly except via
+ target_memory_map.
+
+ This method should not cache data; if the memory map could
+ change unexpectedly, it should be invalidated, and higher
+ layers will re-fetch it. */
+ VEC(mem_region_s) *(*to_memory_map) (struct target_ops *);
+
+ /* Erases the region of flash memory starting at ADDRESS, of
+ length LENGTH.
+
+ Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned
+ on flash block boundaries, as reported by 'to_memory_map'. */
+ void (*to_flash_erase) (struct target_ops *,
+ ULONGEST address, LONGEST length);
+
+ /* Finishes a flash memory write sequence. After this operation
+ all flash memory should be available for writing and the result
+ of reading from areas written by 'to_flash_write' should be
+ equal to what was written. */
+ void (*to_flash_done) (struct target_ops *);
+
int to_magic;
/* Need sub-structure for target machine related rather than comm related?
*/
extern DCACHE *target_dcache;
-extern int do_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
- int write, struct mem_attrib *attrib);
-
extern int target_read_string (CORE_ADDR, char **, int, int *);
extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len);
extern int child_xfer_memory (CORE_ADDR, gdb_byte *, int, int,
struct mem_attrib *, struct target_ops *);
-/* Make a single attempt at transfering LEN bytes. On a successful
- transfer, the number of bytes actually transfered is returned and
- ERR is set to 0. When a transfer fails, -1 is returned (the number
- of bytes actually transfered is not defined) and ERR is set to a
- non-zero error indication. */
+/* Fetches the target's memory map. If one is found it is sorted
+ and returned, after some consistency checking. Otherwise, NULL
+ is returned. */
+VEC(mem_region_s) *target_memory_map (void);
-extern int target_read_memory_partial (CORE_ADDR addr, gdb_byte *buf,
- int len, int *err);
+/* Erase the specified flash region. */
+void target_flash_erase (ULONGEST address, LONGEST length);
+
+/* Finish a sequence of flash operations. */
+void target_flash_done (void);
+
+/* Describes a request for a memory write operation. */
+struct memory_write_request
+ {
+ /* Begining address that must be written. */
+ ULONGEST begin;
+ /* Past-the-end address. */
+ ULONGEST end;
+ /* The data to write. */
+ gdb_byte *data;
+ /* A callback baton for progress reporting for this request. */
+ void *baton;
+ };
+typedef struct memory_write_request memory_write_request_s;
+DEF_VEC_O(memory_write_request_s);
+
+/* Enumeration specifying different flash preservation behaviour. */
+enum flash_preserve_mode
+ {
+ flash_preserve,
+ flash_discard
+ };
+
+/* Write several memory blocks at once. This version can be more
+ efficient than making several calls to target_write_memory, in
+ particular because it can optimize accesses to flash memory.
+
+ Moreover, this is currently the only memory access function in gdb
+ that supports writing to flash memory, and it should be used for
+ all cases where access to flash memory is desirable.
+
+ REQUESTS is the vector (see vec.h) of memory_write_request.
+ PRESERVE_FLASH_P indicates what to do with blocks which must be
+ erased, but not completely rewritten.
+ PROGRESS_CB is a function that will be periodically called to provide
+ feedback to user. It will be called with the baton corresponding
+ to the request currently being written. It may also be called
+ with a NULL baton, when preserved flash sectors are being rewritten.
+
+ The function returns 0 on success, and error otherwise. */
+int target_write_memory_blocks (VEC(memory_write_request_s) *requests,
+ enum flash_preserve_mode preserve_flash_p,
+ void (*progress_cb) (ULONGEST, void *));
-extern int target_write_memory_partial (CORE_ADDR addr, gdb_byte *buf,
- int len, int *err);
extern char *child_pid_to_exec_file (int);
extern int unpush_target (struct target_ops *);
+extern void target_pre_inferior (int);
+
extern void target_preopen (int);
extern void pop_target (void);
projects / deliverable / binutils-gdb.git / blobdiff