[PATCH 0 of 5] Some jstack fixes and improvements
mjw at redhat.com
Wed Mar 14 06:53:49 PDT 2012
On Wed, 2012-03-14 at 09:26 -0400, Andrew Hughes wrote:
> ----- Original Message -----
>> One patch relies on
> > an unreleased Systemtap 1.8 feature (@var) which adds support for
> > when hotspot is compiled with gcc 4.6+, it checks the systemtap
> > version installed to fall back on the old method (using $var)
>> if necessary.
> Does this mean IcedTea6 now requires an unreleased version of SystemTap?
No, just that it will take advantage of it when it is released.
That is what the fancy (% condition %? true %: false %) construct is
+ Universe_methodKlassObj[pid()] = %( systemtap_v >= "1.8"
+ %? @var("_methodKlassObj at universe.cpp")
+ %: $_methodKlassObj %);
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