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'word-format'
The format to be used to print the memory words. The notation
is the same as for GDB print command (see“Output formats”
(page 86)).
'word-size'
The size of each memory word in bytes.
'nr-rows'
The number of rows in the output table.
'nr-cols'
The number of columns in the output table.
'aschar'
If present, indicates that each row should include an ASCII dump.
The value of aschar is used as a padding character when a byte
is not a member of the printable ASCII character set (printable
ASCII characters are those whose code is between 32 and 126,
inclusively).
'byte-offset' An offset to add to the address before fetching memory.
This command displays memory contents as a table of nr-rows by nr-cols words,
each word being word-size bytes. In total, nr-rows * nr-cols * word-size
bytes are read (returned as 'total-bytes'). Should less than the requested number
of bytes be returned by the target, the missing words are identified using 'N/A'. The
number of bytes read from the target is returned in 'nr-bytes' and the starting address
used to read memory in 'addr'.
The address of the next/previous row or page is available in 'next-row' and
'prev-row', 'next-page' and 'prev-page'.
GDB command
The corresponding GDB command is 'x'. gdbtk has 'gdb_get_mem' memory read
command.
Example
Read six bytes of memory starting at bytes+6 but then offset by -6 bytes. Format as
three rows of two columns. One byte per word. Display each word in hex.
(gdb)
9-data-read-memory -o -6 -- bytes+6 x 1 3 2
9^done,addr="0x00001390",nr-bytes="6",total-bytes="6",
next-row="0x00001396",prev-row="0x0000138e",next-page="0x00001396",
prev-page="0x0000138a",memory=[
{addr="0x00001390",data=["0x00","0x01"]},
{addr="0x00001392",data=["0x02","0x03"]},
{addr="0x00001394",data=["0x04","0x05"]}]
(gdb)
Read two bytes of memory starting at address shorts + 64 and display as a single
word formatted in decimal.
(gdb)
5-data-read-memory shorts+64 d 2 1 1
5^done,addr="0x00001510",nr-bytes="2",total-bytes="2",
326 The GDB/MI Interface