[Bug translator/6941] New: better prologue heuristics needed for userspace (non-regparm)

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

Until gcc vta mode comes on line, systemtap may need better prologue-finding
heuristics for .function() probes that process $context variables.

For example, rhel5 glibc, function gethostbyname2, prologue and non-prologue
instructions are intermingled.  gdb picks some point within this intermingled
mass to plop its breakpoint.  systemtap may have some extra freedom in searching
since the script specifies all the $context variables whose locations we are
after all seeking.

-- 
           Summary: better prologue heuristics needed for userspace (non-
                    regparm)
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: fche at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=6941

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