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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.4-199-g7b9215b
- From: jistone at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 24 Mar 2011 18:32:25 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.4-199-g7b9215b
- Reply-to: systemtap at sourceware dot org
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commit 7b9215b214f6353d4c6169b5541fbd8190eff64e
Author: Josh Stone <jistone@redhat.com>
Date: Thu Mar 24 11:18:45 2011 -0700
Find SDT semaphores even in RWX mappings
Some S390 environments don't have noexec mappings for data sections, so
the .probes section with SDT semaphores is mapped RWX rather than RW-.
Our logic which checks vm flags needs to accommodate this.
* runtime/uprobes-common.c (stap_uprobe_mmap_found): Deal with mappings
that are both executable and writable, so semaphores can be found.
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Summary of changes:
runtime/uprobes-common.c | 53 ++++++++++++++++++++++++++++++++++-----------
1 files changed, 40 insertions(+), 13 deletions(-)
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systemtap: system-wide probe/trace tool