function::regparm(3stap) — Linux manual page

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | SEE ALSO | COLOPHON

FUNCTION::REGPARM(3stap)    Context Functions   FUNCTION::REGPARM(3stap)

NAME         top

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

SYNOPSIS         top

           regparm(n:long)

ARGUMENTS         top

       n
           original regparm value

DESCRIPTION         top

       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 ALSO         top

       tapset::registers(3stap)

COLOPHON         top

       This page is part of the systemtap (a tracing and live-system
       analysis tool) project.  Information about the project can be
       found at ⟨https://sourceware.org/systemtap/⟩.  If you have a bug
       report for this manual page, send it to [email protected].
       This page was obtained from the project's upstream Git repository
       ⟨git://sourceware.org/git/systemtap.git⟩ on 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2024-06-13.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       [email protected]

SystemTap Tapset Reference     April 2024       FUNCTION::REGPARM(3stap)

Pages that refer to this page: tapset::registers(3stap)