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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.0-463-g091df18


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- Log -----------------------------------------------------------------
commit 091df18ca8cd329bec8219ce0908a109e25ba1a4
Merge: 21e8e579ef10942bf2db3e1514026a6d132b1502 23312a05753e948f7053beccc3dedfbe407a660a
Author: Tim Moore <timoore@redhat.com>
Date:   Tue Jan 5 15:22:21 2010 +0100

    Merge remote branch 'origin/master'

commit 21e8e579ef10942bf2db3e1514026a6d132b1502
Author: Tim Moore <timoore@redhat.com>
Date:   Tue Jan 5 15:18:57 2010 +0100

    bz6436 backtraces from uprobes
    
    This implements proper unwinding from uprobes in the presence of
    uretprobe trampolines.
    
    * runtime/stack.c (_stp_stack_print): Rework for uprobe context case
      and refactor a bit.
    * runtime/uprobes2/uprobes.h (GET_PC_URETPROBE_NONE): new constant
    * runtime/uprobes2/uprobes.c (uprobe_get_pc): Support translating the
      trampoline function from uprobe context in addition to uretprobe
      context.
    * runtime/uprobes/uprobes.h (GET_PC_URETPROBE_NONE): ditto
    * runtime/uprobes/uprobes.c (uprobe_get_pc): ditto
    * tapsets.cxx (uprobe_derived_probe_group::emit_module_decls):
      Initialize ri in context to GET_PC_URETPROBE_NONE in generated
      enter_uprobe_probe.
    * testsuite/systemtap.context/fib.stp: Add an option to do a backtrace
      on function entry.
    * testsuite/systemtap.context/fib.exp: Test backtrace in function
      entry (uprobe) probes.

-----------------------------------------------------------------------

Summary of changes:
 runtime/stack.c                     |   18 +++++---
 runtime/uprobes/uprobes.c           |   71 +++++++++++++++++++---------------
 runtime/uprobes/uprobes.h           |    4 ++
 runtime/uprobes2/uprobes.c          |   71 +++++++++++++++++++---------------
 runtime/uprobes2/uprobes.h          |    4 ++
 tapsets.cxx                         |    1 +
 testsuite/systemtap.context/fib.exp |   14 +++++++
 testsuite/systemtap.context/fib.stp |    3 +
 8 files changed, 117 insertions(+), 69 deletions(-)


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