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* tapset/logging.stp (ftrace): New function.
(*): Add kerneldoc to other functions.
* doc/SystemTap_Tapset_Reference/tapsets.tmpl: Process logging.stp.
* stapfuncs.3stap.in: Remove "LOGGING" section, now redundant.
* runtime/autoconf-trace-printk.c: New autoconf test.
* buildrun.cxx (compile_pass): Build it.
* NEWS: Mention it.
* testsuite/buildok/logging.stp: Test it.
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Previous implementation was error-prone, because allowed returning empty
tokens (mimiced strsep()), which is fine if there is a NULL semantic.
Unfortunately SystemTap doesn't provide it in scripts and has only blank
string (""), therefore testing against it was misleading.
The solution is to return only non-empty tokens (mimic strtok()).
* tapset/string.stp: Fix tokenize.
* testsuite/systemtap.string/tokenize.stp: Improve and add case with
more than one delimiter in the delim string.
* testsuite/systemtap.string/tokenize.exp: Ditto.
* stapfuncs.3stap.in: Update tokenize description.
* doc/langref.tex: Ditto.
Signed-off-by: Josh Stone <jistone@redhat.com>
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* tapset/context.stp: Add pgrp() function.
* testsuite/buildok/context_test.stp: Add pgrp() call.
* stapfuncs.3stap.in: Describe pgrp() and sid().
Signed-off-by: Josh Stone <jistone@redhat.com>
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* stapfuncs.3stap.in: Add description for pid2task
and pid2execname.
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