BINPATCH(8) | System Manager's Manual (atari) | BINPATCH(8) |
binpatch
—
binpatch |
[-b | -w |
-l | -d ]
[-o offset]
[-T saddr]
-s symname
[-r value]
binfile |
binpatch |
[-b | -w |
-l | -d ]
[-o offset]
[-T saddr]
-a addr
[-r value]
binfile |
binpatch
is used to modify or examine the data
associated with a symbol in a binary file binfile.
The flags -b
, -w
,
-l
, and -d
specify the size
of the data to be modified or examined. -b
is for
8bit (int8_t
), -w
is for
16bit (int16_t
), -l
is for
32bit (int32_t
), and -d
is
for 64bit (int64_t
) variables.
The binfile is scanned in search of the
symbol symname (specified with the
-s
flag). If the symbol is found the current data
and address are printed.
Next if the -r
flag has been given, the
current data is replaced with that of value.
If the second form is used the address addr
specified with the -a
flag is used as a direct
address into the data section of the binary and no symbol search is
performed.
The -o
flag specifies an offset in
int8_t
, int16_t
,
int32_t
, and int64_t
(-b
, -w
,
-l
, or -d
) units from the
given locator (-s
or -a
) for
binpatch
to perform its described actions. This
might be useful to patch a member of array or structure.
The -T
flag is used to specify the
starting address of a.out binary text segment. Ignored for other binary
executable formats.
binpatch
command doesn't check if size of specified
symbol is the same as the specified size by -b
,
-w
, -l
, or
-d
flag.
The binpatch
command doesn't check if
specified address or symbol is a patchable variable and it might corrupt the
specified executable binary.
August 20, 2009 | NetBSD 9.4 |