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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-37-ga575167
- From: jistone at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 6 Aug 2010 18:01:57 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-37-ga575167
- Reply-to: systemtap at sourceware dot org
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from 116bd66960dfbba97a123c4f1fe903d717d1e805 (commit)
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- Log -----------------------------------------------------------------
commit a5751672ae06f66a5ce28efab17e406af535adfa
Author: Josh Stone <jistone@redhat.com>
Date: Fri Aug 6 10:55:32 2010 -0700
Ignore empty files in the cache
Sometimes crashes can leave just-written files at zero length, so we
should be a little paranoid that our cached files are ok. The stapconf
header is especially vulnerable, as it will prevent all scripts from
being compiled if it gets bad.
* util.cxx (get_file_size(int)): Read the size from a file descriptor.
* cache.cxx (get_stapconf_from_cache, get_script_from_cache): Check that
cached files are non-empty before using them.
-----------------------------------------------------------------------
Summary of changes:
cache.cxx | 9 ++++++---
util.cxx | 12 ++++++++++++
util.h | 1 +
3 files changed, 19 insertions(+), 3 deletions(-)
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systemtap: system-wide probe/trace tool