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[Bug runtime/20131] New: listing_mode.exp wildcard library path failures
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Mon, 23 May 2016 15:46:18 +0000
- Subject: [Bug runtime/20131] New: listing_mode.exp wildcard library path failures
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=20131
Bug ID: 20131
Summary: listing_mode.exp wildcard library path failures
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
Assignee: systemtap at sourceware dot org
Reporter: dsmith at redhat dot com
Target Milestone: ---
For a long while now, listing_mode.exp has had lots of failures. Commit 79be36d
improves the situation by making the test be more forgiving about 'stap -l'
output. There were times the test was expecting a full library path in the
output where 'stap -l' was outputting a relative path.
Originally, we were getting the following test numbers:
rhel6: 747 passes / 728 failures / 60 untested
rhel7: 899 passes / 792 failures / 36 untested
f23: 899 passes / 792 failures / 36 untested
With commit 79be36d, I'm getting:
rhel6: 1279 passes / 184 failures / 72 untested
rhel7: 1431 passes / 260 failures / 36 untested
f23: 1431 passes / 260 failures / 36 untested
So, where are the remaining failures coming from? Some are coming from bug
#18083 (listing_mode.exp fails on rhel6), related to line number problems.
The majority however are related to the following bug. At some point the
finding libraries using a wildcard stopped working, such as the following
command:
# stap -l process.library("*liblisting_mode.so").function("*") -c listing_mode
The function stap_list_cmd_lib in listing_mode.exp tries to find libraries 4
different ways: using a simple name ('.library("liblisting_mode.so")'), using a
relative name ('.library("./liblisting_mode.so")'), using the full path to the
library ('.library("/FOO/BAR/liblisting_mode.so")'), and using a wildcard
('.library("*liblisting_mode.so")'). Only the last variant fails.
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