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[Bug runtime/4636] systemtap module generated kernel module does not compile on 2.6.21-1.3218.fc8 kernel
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 13 Jun 2007 18:50:12 -0000
- Subject: [Bug runtime/4636] systemtap module generated kernel module does not compile on 2.6.21-1.3218.fc8 kernel
- References: <20070613181734.4636.wcohen@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From fche at redhat dot com 2007-06-13 18:50 -------
(In reply to comment #1)
> Looks like you can't build modules with that version of gcc and -Werror.
We could remove -Werror from the generated makefile in buildrun.cxx.
> char *cp;
> char *end = addr + len;
> ^ adding "len" to a void * - gcc says don't do it!
>
>
> Now wasn't the whole point of implementing void types to eliminate all the
> casting associated with using "char *"?
Sure, but arithmetic on void pointers is not defined. Remember,
the address ptr+index depends on sizeof (*ptr).
--
http://sourceware.org/bugzilla/show_bug.cgi?id=4636
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