Merge branch 'master' into pr6866

1 files changed, 40 insertions, 1 deletions

diff --git a/NEWS b/NEWS
index 7ae93675..ec204442 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,19 @@
-* What's new
+* What's new in version 0.9.5
+
+ - New probes process().insn and process().insn.block that allows
+   inspection of the process after each instruction or block of
+   instructions executed. So to count the total number of instructions
+   a process executes during a run do something like:
+     $ stap -e 'global steps; probe process("/bin/ls").insn {steps++} 
+                probe end {printf("Total instructions: %d\n", steps);}' \
+            -c /bin/ls
+   This feature can slow down execution of a process somewhat.
+
+ - Systemtap probes and function man pages extracted from the tapsets
+   are now available under 3stap. To show the page for probe vm.pagefault
+   or the stap function pexecname do:
+     $ man 3stap vm.pagefault
+     $ man 3stap pexecname
 
 - Kernel tracepoints are now supported for probing predefined kernel
   events without any debuginfo.  Tracepoints incur less overhead than
@@ -39,6 +54,30 @@
   This replaces any dwarf $variable expressions that could not be resolved
   with literal numeric zeros, along with a warning message.
 
+- Both kernel markers and kernel tracepoint support argument listing
+  through stap -L 'kernel.mark("*")' or stap -L 'kernel.trace("*")'
+
+- Users can use -DINTERRUPTIBLE=0 to prevent interrupt reentrancy in
+  their script, at the cost of a bit more overhead to toggle the
+  interrupt mask.
+
+- Added reentrancy debugging. If stap is run with the arguments
+  "-t -DDEBUG_REENTRANCY", additional warnings will be printed for
+  every reentrancy event, including the probe points of the
+  resident and interloper probes.
+
+- Default to --disable-pie for configure.
+  Use --enable-pie to turn it back on.
+
+- Improved sdt.h compatibility and test suite for static dtrace
+  compatible user space markers.
+
+- Some architectures now use syscall wrappers (HAVE_SYSCALL_WRAPPERS).
+  The syscall tapset has been enhanced to take care of the syscall
+  wrappers in this release.
+
+- Security fix for CVE-2009-0784: stapusr module-path checking race.
+
 * What's new in version 0.9
 
 - Typecasting is now supported using the @cast operator.  A script can