|Priority:||4 - Normal|
|Created by:||Jerry Jelinek [X]|
|Reported by:||Jerry Jelinek [X]|
|Assigned to:||Jerry Jelinek [X]|
Fixed: A fix for this issue is checked into the tree and tested.
(Resolution Date: 2017-02-14T16:54:23.000Z)
2017-02-16 JAMAICA DECOY (Release Date: 2017-02-16)
This is issues was already fixed in FreeBSD. Here is their summary:
dtrace converts pairs of consecutive underscores in a probe name to dashes. When dtrace -G processes relocations corresponding to USDT probe sites, it performs this conversion on the corresponding symbol names prior to looking up the resulting probe names in the USDT provider definition. However, in so doing it would actually modify the input object's string table, which breaks the string suffix merging done by recent binutils. Because we don't care about the symbol name once the probe site is recorded, just perform the probe lookup using a temporary copy.
Tested by building Dave's Apache usdt module on a platform running this change and verifying that the names are still correct.
Here is the failures from a dtest run. These are apparently known failures, except for 20 and 23:
# ./bin/dtfailures # KIND TEST DETAILS 0 cpc tst.allcpus.ksh 1 ip tst.ipv4localicmp.ksh 2 ip tst.ipv4remoteicmp.ksh 3 ip tst.ipv6remoteicmp.ksh remote IPv6 host. 4 ip tst.localtcpstate.ksh 5 ip tst.remotetcpstate.ksh 6 java_api tst.Abort.ksh ... 6 more 7 java_api tst.Bean.ksh ... 6 more 8 java_api tst.Close.ksh ... 6 more 9 java_api tst.Drop.ksh ... 6 more 10 java_api tst.Enable.ksh ... 6 more 11 java_api tst.FunctionLookup.ksh ... 6 more 12 java_api tst.GetAggregate.ksh ... 6 more 13 java_api tst.MaxConsumers.ksh ... 6 more 14 java_api tst.MultiAggPrinta.ksh ... 6 more 15 java_api tst.ProbeData.ksh ... 6 more 16 java_api tst.ProbeDescription.ksh ... 1 more 17 java_api tst.StateMachine.ksh ... 6 more 18 java_api tst.StopLock.ksh ... 6 more 19 misc tst.include.ksh 20 pid tst.utf8probefunc.ksh dtrace failed in /var/tmp/dtest.2 21 pragma tst.temporal.ksh Usage: head [-qv] [-n lines] [-c 22 preprocessor err.ifdefnotendif.d 23 ustack tst.unpriv.ksh dtrace: failed to open output fil
Failure 20 was due to the version of
gcc installed. OS-5960 has been filed to track this. It is unclear why 23 failed since I don't know what directory the code was running in during that test, but I ran the following from within the
failure.23 directory and the
tst.unpriv.ksh test passes.
# pwd /opt/SUNWdtrt/failure.23 # cp ../tst/common/ustack/tst.unpriv.exe . # ksh ./tst.unpriv.ksh /usr/sbin/dtrace dtrace: script '/dev/stdin' matched 4 probes dtrace: allowing destructive actions dtrace: pid 56286 has exited