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vfs tapset compilation error.
- From: Daniel Fishman <quantera at gmail dot com>
- To: systemtap at sources dot redhat dot com
- Date: Mon, 24 Jan 2011 06:39:18 +0200
- Subject: vfs tapset compilation error.
- Reply-to: quantera at gmail dot com
Hello,
When trying to execute the following:
stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}'
compilation fails:
Pass 1: parsed user script and 144 library script(s) using 91224virt/39148res/2120shr kb, in 290usr/20sys/316real ms.
WARNING: cross-file global variable reference to identifier '__devnames' at /usr/share//systemtap/tapset/vfs.stp:20:8 from: identifier '__devnames' at /usr/share/systemtap/tapset/vfs.stp:23:13
source: if (dev in __devnames)
^
semantic error: unresolved type : identifier '__devnames' at /usr/share//systemtap/tapset/vfs.stp:20:8
source: global __devnames
^
Pass 2: analyzed script: 2 probe(s), 23 function(s), 3 embed(s), 1 global(s) using 323644virt/145452res/6872shr kb, in 1750usr/220sys/1971real ms.
Pass 2: analysis failed. Try again with another '--vp 01' option.
Why __devnames's type cannot be resolved?
Thanks,
Daniel.