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[SCM] systemtap: system-wide probe/trace tool branch, jistone/inode-uprobes, created. release-1.5-1-g62911bb
- From: jistone at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 24 May 2011 01:55:43 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, jistone/inode-uprobes, created. release-1.5-1-g62911bb
- Reply-to: systemtap at sourceware dot org
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The branch, jistone/inode-uprobes has been created
at 62911bbe502536cb7d49c80b70f667c11354d1ed (commit)
- Log -----------------------------------------------------------------
commit 62911bbe502536cb7d49c80b70f667c11354d1ed
Author: Josh Stone <jistone@redhat.com>
Date: Thu May 19 19:44:16 2011 -0700
Add initial support for inode-based uprobes
This adds support for placing regular userspace probes using the new
inode+offset API being developed for the upstream kernel. This includes
probing functions, statements, and SDT markers, but return probes aren't
yet supported in the new API. A lot of the finer details of systemtap's
userspace runtime still needs work too, but this is a functional start.
* runtime/uprobes-inode.c: New, basic registration code to lookup
filename inodes and connect uprobes using the new API.
* tapsets.cxx (kernel_supports_inode_uprobes): New, guess whether this
is an inode-uprobes kernel based on CONFIG values.
(dwarf_builder::build): Disallow userspace return probes.
(uprobe_derived_probe::join_group): Only trigger task_finder and the
manual uprobes model for the old style of uprobes.
(uprobe_builder::build): Disallow absolute-address userspace probes.
(uprobe_derived_probe_group::emit*): Split into inode/utrace variants.
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systemtap: system-wide probe/trace tool