[PATCH 0 of 2] Add systemtap tapset tests

[Mark Wielaard]

Hi,

These patches add the test framework that Jon wrote for testing the
systemtap tapset probes. It adds a large number of tests (498 probes
are tested). The first patch is largely Jon's work, I just tweaked it
a bit to make it a little more robust. The second patch just extends
the jstaptest.pl to add a couple of explicit jstack tests (simple and full).

Jon, if you could take a look that would be appreciated. The changes
I made to your original were:
- Switched detect_probes from a negative test (see if the stap -l fails)
  to a positive test (see if that stap -l output matches the expected
  probe name). And use -L to force expansion of all arguments.
- Added an explicit stap script run test to make sure the user has
  enough permissions (and if not skip the actual probe tests).
- Made the test program do a little more so method_compiled tests
  have enough time to detect all probe events (specifically run some
  triggers twice with a small Thread.sleep in between to give hotspot
  enough time to finish the jit compilation of a method).

The patches apply directly to icedtea6, and with a few small tweaks
to Makefile.am also to icedtea7 (just simple textual changes). The
tests all succeed on both 6 and 7. But for icedtea7 I have not yet
merged in Andrew's latest forest update. Will tests with that merged
next, and when that also passes check it into icedtea7 too.

Cheers,

Mark

 ChangeLog                                 |    30 +
 Makefile.am                               |    29 +-
 tapset/hotspot_jni.stp.in                 |    20 +-
 test/tapset/ClassUnloadedProbeTester.java |    38 +
 test/tapset/JNIStapTest.c                 |  2107 +++++++++++++++++++++++++++++
 test/tapset/JNITestClass.c                |     7 +
 test/tapset/JNITestClass.h                |    21 +
 test/tapset/JNITestClass.java             |   121 +
 test/tapset/RunWrapper.java               |    21 +
 test/tapset/StapJNIClassLoader.java       |    64 +
 test/tapset/StapURLClassLoader.java       |    24 +
 test/tapset/SystemtapTester.java          |   202 ++
 test/tapset/TestingRunner.java            |    82 +
 test/tapset/jstaptest.pl                  |   954 +++++++++++++
 ChangeLog                                 |     4 +
 test/tapset/jstaptest.pl                  |    57 +-
 16 files changed, 3772 insertions(+), 9 deletions(-)