function::kernel_buffer_quoted_error.3stap man page

function::kernel_buffer_quoted_error ā€” Retrieves and quotes buffer from kernel space

Synopsis

    kernel_buffer_quoted_error:string(addr:long,inlen:long,outlen:long)

Arguments

addr

the kernel space address to retrieve the buffer from

inlen

the exact length of the buffer to read

outlen

the maximum length of the output string

Description

Reads inlen characters of a buffer from the given kernel space memory address, and returns up to outlen characters, where any ASCII characters that are not printable are replaced by the corresponding escape sequence in the returned string. Note that the string will be surrounded by double quotes. On the rare cases when kernel space data is not accessible at the given address, an error is thrown.

See Also0

tapset::conversions(3stap)

Info

October 2017 SystemTap Tapset Reference String and data retrieving fun