[Bug translator/3630] New: kernet.statement broken on x86_64

[Bug translator/3630] New: kernet.statement broken on x86_64

[hunt at redhat dot com]

this is testsuite/systemtap.base/probefunc.exp

It generates the follwoing script on my system:
    global funcname
    probe kernel.statement(0xffffffff8028854c) {
        funcname = probefunc()
    }
    probe begin {
        log("systemtap starting probe")
    }
    probe end {
        log("systemtap ending probe")
        printf("%s\n", funcname)
    }

WHen it tries to compile that, it gets the following error:
WARNING: cannot find kernel debuginfo
stap: tapsets.cxx:667: void
dwflpp::query_cu_containing_global_address(Dwarf_Addr, void*): Assertion `bias
== module_bias' failed.
Aborted

-- 
           Summary: kernet.statement broken on x86_64
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: hunt at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=3630

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[Bug translator/3630] kernet.statement broken on x86_64

[fche at redhat dot com]

------- Additional Comments From fche at redhat dot com  2006-12-01 17:35 -------
One problem here is that elfutils' dwfl_addrmodule() function is
being used to request a mapping of a kernel run-time address to
the kernel dwfl module, and instead it is returning 0.  Roland,
any advice on this?

It turns out that we probably should not use this routine at all
anyway, since for the kernel, we can look it up by name, and
for modules, incoming addresses are text-offset and not absolute.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |roland at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=3630

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[Bug translator/3630] kernet.statement broken on x86_64

[fche at redhat dot com]

------- Additional Comments From fche at redhat dot com  2006-12-01 17:39 -------
Note that loc2c-test works, since it uses dwfl_addrdie() to look up
the address.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=3630

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[Bug translator/3630] kernet.statement broken on x86_64

[fche at redhat dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
   Last reconfirmed|0000-00-00 00:00:00         |2006-12-06 18:41:30
               date|                            |


http://sourceware.org/bugzilla/show_bug.cgi?id=3630

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

[Bug translator/3630] kernet.statement broken on x86_64

[fche at redhat dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|systemtap at sources dot    |fche at redhat dot com
                   |redhat dot com              |


http://sourceware.org/bugzilla/show_bug.cgi?id=3630

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You are the assignee for the bug, or are watching the assignee.