From 7d091090a01e61e1fd94d65c56e9df11e9ba2f6e Mon Sep 17 00:00:00 2001 From: "Frank Ch. Eigler" Date: Sat, 29 Nov 2008 09:27:43 -0500 Subject: [PATCH] NEWS: add blurbs re "stap -t" skippage and shared library probing --- NEWS | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/NEWS b/NEWS index 18c1243d4..eecee974f 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,20 @@ * What's new +- A serious problem associated with user-space probing in shared libraries + was corrected, making it now possible to experiment with probe shared + libraries. Assuming dwarf debugging information is installed, use this + twist on the normal syntax: + + probe process("/lib64/libc-2.8.so").function("....") { ... } + + This would probe all threads that call into that library. Running + "stap -c CMD" or "stap -x PID" naturally restricts this to the target + command+descendants only. + +- For scripts that sometimes terminate with excessive "skipped" probes, + rerunning the script with "-t" (timing) will print more details about + the skippage reasons. + - Symbol tables and unwind (backtracing) data support were formerly compiled in for all probed modules as identified by the script (kernel; module("name"); process("file")) plus those listed by the -- 2.43.5