[Bug translator/9991] New: on-the-fly kernel debuginfo construction

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

mingo idea, paraphrased:

Given kernel sources & build tree, systemtap could invoke a
  % make CONFIG_DEBUG_INFO=y foo/bar.o
on the fly to generate debuginfo-laden object code.


Some complications:

- different compiler versions may generate different code;
  though maybe build-id matching would work

- we may not know which object files to rebuild for a basic
  symbolic probe like:
    probe kernel.function("foo_bar")
  since these can occur in any old compilation unit.
  Plus consider:
    probe kernel.statement("*@include/bar.h:333")

- mapping module("foo") to the right path name is not obvious;
  might require parsing of kernel **/Makefile

-- 
           Summary: on-the-fly kernel debuginfo construction
           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=9991

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