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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.0-463-g091df18
- From: moore at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 5 Jan 2010 14:24:41 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.0-463-g091df18
- Reply-to: systemtap at sourceware dot org
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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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systemtap: system-wide probe/trace tool