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[Bug translator/10077] New: $return optimization for functions returning void
- From: "ananth at in dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 16 Apr 2009 17:00:39 -0000
- Subject: [Bug translator/10077] New: $return optimization for functions returning void
- Reply-to: sourceware-bugzilla at sourceware dot org
When wildcard probing function returns, invariably one hits a problem:
[ananth@... ~]$ stap -ve 'probe kernel.function("*@fs/exec.c").return {
printf("%s\n", $return) }'
Pass 1: parsed user script and 51 library script(s) in 520usr/40sys/925real ms.
semantic error: function free_bprm(fs/exec.c) has no return value: identifier
'$return' at <input>:1:62
source: probe kernel.function("*@fs/exec.c").return { printf("%s\n",
$return) }
^
Pass 2: analyzed script: 29 probe(s), 19 function(s), 0 embed(s), 0 global(s) in
370usr/760sys/1399real ms.
Pass 2: analysis failed. Try again with another '--vp 01' option.
Would it be possible to emit a warning or a string "no $return in this context"
instead of aborting as above?
--
Summary: $return optimization for functions returning void
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: translator
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: ananth at in dot ibm dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=10077
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