How can i examine/edit stack contents using radare2, just like gdb ?
Is there a way to examine memory using $rbp or $rsp register like below.
x $rbp-10 <--- something like this which can dump from this particular offset.
How do i change the memory contents during debugging ?
example: something like set (address)=0xff
To examine in radare2 you can think as 'print values' and you can use:
px show hexdump
pxl display N lines (rows) of hexdump
pxr[j] show words with references to flags and code (q=quiet)
Example:
> px [nBytes] @[address][offset]
"Print hex 10 bytes at rbp plus 10"
[0x5618eccbf77a]> px 10 @rbp+10
> pxl [nLines] @[address][offset]
> pxr [nBytes] @[address][offset]
To edit you can think as 'write' use:
w[1248][+-][n] increment/decrement byte,word..
Example:
> w [str] @[address]
"Write \x38\x38 at rbp"
[0x5618eccbf77a]> w \x38\x38 @rbp
