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

FUNCTION::REGPARM(3stap)    Context FunctionsFUNCTION::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 thesystemtap (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 systemtap@sourceware.org.       This page was obtained from the project's upstream Git repository       ⟨git://sourceware.org/git/systemtap.git⟩ on 2025-08-11.  (At that       time, the date of the most recent commit that was found in the       repository was 2025-07-24.)  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 isnot part of the original manual page), send a mail to       man-pages@man7.orgSystemTap Tapset Reference      April 2025FUNCTION::REGPARM(3stap)

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