debuginfo search path in i386 and powerpc are different

[Srikar Dronamraju]

Hi, 

While searching for debuginfo file, systemtap is looking at a subset of
paths for powerpc. 

I tried latest snapshot of systemtap and elfutils(0.129) on i386 and powerpc. 

On Powerpc (kernel being /boot/vmlinux-2.6.18-rhel5.1snap2)
-----------
/boot/vmlinux-2.6.18-rhel5.1snap2
/boot/vmlinux-2.6.18-rhel5.1snap2.debug
/boot/.debug/vmlinux-2.6.18-rhel5.1snap2.debug
/usr/lib/debug/boot/vmlinux-2.6.18-rhel5.1snap2.debug

On i386 (kernel being /boot/vmlinux-2.6.18-rhel5.1snap2)
--------- 
/boot/vmlinux-2.6.18-rhel5.1snap2
/boot/.debug/vmlinux-2.6.18-rhel5.1snap2
/usr/lib/debug/boot/vmlinux-2.6.18-rhel5.1snap2
/boot/vmlinux-2.6.18-rhel5.1snap2.debug
/boot/.debug/vmlinux-2.6.18-rhel5.1snap2.debug
/usr/lib/debug/boot/vmlinux-2.6.18-rhel5.1snap2.debug
/lib/modules/2.6.18-rhel5.1snap2/vmlinux
/lib/modules/2.6.18-rhel5.1snap2/vmlinux.debug
/lib/modules/2.6.18-rhel5.1snap2/.debug/vmlinux.debug
/usr/lib/debug/lib/modules/2.6.18-rhel5.1snap2/vmlinux.debug

Why are the search paths in Powerpc a subset of the search paths in
i386?  

I tried looking at elfutils/libdwfl/ sources but couldn't find anything
specific to powerpc.

--
Thanks and Regards
Srikar