[Bug translator/18075] New: Add a return-probe variant of .callee

["jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18075

            Bug ID: 18075
           Summary: Add a return-probe variant of .callee
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: translator
          Assignee: systemtap at sourceware dot org
          Reporter: jistone at redhat dot com

AIUI, callee probes are essentially translated into respective call probes with
a filter to match the caller.  It would also be useful to have return probes of
this sort.  It might even be easier, because I think the registers of a return
probe will already be into the caller's frame.

For example, a fault injection script might wish to tweak the return value of a
function, but only for particular callers, like this glibc article is doing.
https://sourceware.org/glibc/wiki/Testing/WhiteBox

-- 
You are receiving this mail because:
You are the assignee for the bug.