[Bug testsuite/14574] Add test coverage for stapdyn's runtime

["dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=14574

--- Comment #8 from David Smith <dsmith at redhat dot com> 2012-09-27 16:30:56 UTC ---
Commit 8c94efa modifies the systemtap.pass1-4/*.exp tests to also include
dyninst.

Most of the cases are modified like this:

====
foreach runtime [get_runtime_list] {
    if {$runtime != ""} {
    # run test, add '--runtime=$runtime'
    } else {
    # run test
    }
}
===

Each testcase (where it makes sense) will need to be modified to add dyninst
support.  Hopefully if we get more runtimes the testsuite will accommodate them
much easier.

There are 2 remaining obstacles to getting the testsuite working well with
dyninst:

1) Dyninst outputs some debug messages that interferes with the testsuite
output matching.  Lines like:

  Setting bs state to 1
  found target /usr/lib/libpthread-2.16.so 0x7074
  found target /usr/lib/libpthread-2.16.so 0x7985
  found target /usr/lib/libpthread-2.16.so 0x7a3d
  found target /usr/lib/libpthread-2.16.so 0x6aed

2) Dyninst requires a test executable.  Now that probing /bin/true works, this
one isn't a "must have", but it would be nice to fix this one.

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