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

FUNCT...STRIN(3stap) String and data retrieving fun FUNCT...STRIN(3stap)

NAME         top

       function::user_string_warn - Retrieves string from user space

SYNOPSIS         top

       1) user_string_warn:string(addr:long)

       2) user_string_warn:string(addr:long,warn_msg:string)

ARGUMENTS         top

       addr
           the user space address to retrieve the string from

       warn_msg
           the warning message to return when data isn't available

DESCRIPTION         top

       1) Returns the null terminated C string from a given user space
       memory address. Reports "" on the rare cases when userspace data
       is not accessible and warns (but does not abort) about the
       failure.

       2) Returns the null terminated C string from a given user space
       memory address. Reports the given warning message on the rare
       cases when userspace data is not accessible and warns (but does
       not abort) about the failure.

SEE ALSO         top

       tapset::uconversions(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 systemtap@sourceware.org.
       This page was obtained from the project's upstream Git repository
       ⟨git://sourceware.org/git/systemtap.git⟩ on 2023-12-22.  (At that
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SystemTap Tapset Reference    November 2023         FUNCT...STRIN(3stap)

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

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