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[Bug tapsets/6969] syscall tapset broken on s390x
- From: "jkenisto at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 20 Oct 2008 21:00:57 -0000
- Subject: [Bug tapsets/6969] syscall tapset broken on s390x
- References: <20081020200858.6969.dsmith@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From jkenisto at us dot ibm dot com 2008-10-20 21:00 -------
(In reply to comment #0)
...
>
> Function 'pointer_arg' (and related functions 'int_arg', 'uint_arg', etc.) comes
> from tapset/ARCH/registers.stp for i386, ppc64, and x86_64. Since registers.stp
> doesn't exist for s390x, there is no definition for the *_arg functions.
>
> If the 'pointer_arg' type functions are only designed to be used by the
> nd_syscall tapset, then their use needs to be removed from syscalls2.stp.
The *_arg functions are intended to be generally useful -- especially in
conjunction with dwarfless probing, where there's no other practical way to
refer to args. The problem is that -- as you've noted -- they haven't been
ported to s390 or ia64 (or arm). So it would probably be best to purge the
syscall tapset of calls to these functions.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6969
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