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List: postgresql-general
Subject: [HACKERS] PostgreSQL and ASLR on Linux
From: "Robert Lerche (rlerche)" <rlerche () cisco ! com>
Date: 2013-07-31 20:35:42
Message-ID: EB5EEE071F880B45883AD5C6F0DF717204745B9B () xmb-rcd-x13 ! cisco ! com
[Download RAW message or body]
Hi. Has anyone had experience building PostgreSQL to support Address Space=
Layout Randomization (ASLR)? I recently took a brute-force approach (comp=
iling everything with -fPIC and specifying -pie on all executables). This =
worked, but a (very superficial) performance test indicated a high cost (ar=
ound 50%, much more than I expected). This was on 64-bit Linux x86.
Google turns up some references to the Ubuntu distribution of version 8.3 b=
eing built this way but nothing much more interesting.
I'd appreciate any information or help anyone can give me on this. Thanks.
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<p class="MsoNormal">Hi. Has anyone had experience building PostgreSQL to \
support Address Space Layout Randomization (ASLR)? I recently took a \
brute-force approach (compiling everything with -fPIC and specifying -pie on all \
executables). This worked, but a (very superficial) performance test indicated \
a high cost (around 50%, much more than I expected). This was on 64-bit Linux \
x86.<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Google turns up some references to the Ubuntu distribution of \
version 8.3 being built this way but nothing much more interesting.<o:p></o:p></p> <p \
class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">I’d appreciate any \
information or help anyone can give me on this. Thanks.<o:p></o:p></p> <p \
class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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