function::regparm.3stap man page

function::regparm — Specify regparm value used to compile function

Synopsis

regparm(n:long)

Arguments

n

original regparm value

Description

Call this function with argument n before accessing function arguments using the *_arg function is the function was build with the gcc -mregparm=n option.

(The i386 kernel is built with \-mregparm=3, so systemtap considers regparm(3) the default for kernel functions on that architecture.) Only valid on i386 and x86_64 (when probing 32bit applications). Produces an error on other architectures.

See Also0

tapset::registers(3stap)

Info

March 2016 SystemTap Tapset Reference Context Functions