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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-288-g62f52bb
- From: jistone at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 11 Nov 2010 21:24:14 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-288-g62f52bb
- Reply-to: systemtap at sourceware dot org
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- Log -----------------------------------------------------------------
commit 62f52bb0a5e157b04ab32839471ebbc36b724c3b
Author: Josh Stone <jistone@redhat.com>
Date: Thu Nov 11 13:11:50 2010 -0800
PR12164: Emit kprobes-sdt goo only when needed
This stuff is only used for apps compiled with EXPERIMENTAL_KPROBE_SDT,
so we don't need it most of the time.
* runtime/kprobes-common.c (stap_kprobe_process_found,
stap_kprobe_mmap_found): Only create #ifdef KPROBES_TASK_FINDER.
* tapsets.cxx (dwarf_derived_probe::join_group): Only enable_task_finder
in the session if a semaphore is present.
(dwarf_derived_probe_group::enroll): Remember if any has_semaphores.
(dwarf_derived_probe_group::emit_module_decls): Predicate sdt and
task_finder code on has_semaphores.
(dwarf_derived_probe_group::emit_module_init): Ditto.
(dwarf_derived_probe_group::emit_module_exit): Ditto.
-----------------------------------------------------------------------
Summary of changes:
runtime/kprobes-common.c | 4 +++
tapsets.cxx | 52 ++++++++++++++++++++++++---------------------
2 files changed, 32 insertions(+), 24 deletions(-)
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systemtap: system-wide probe/trace tool