On Wed, Jul 31, 2013 at 4:35 PM, Robert Lerche (rlerche) <rler...@cisco.com> wrote: > 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. > > Google turns up some references to the Ubuntu distribution of version 8.3 > being built this way but nothing much more interesting. > > I’d appreciate any information or help anyone can give me on this. Thanks.
AFAIK you've got it backwards: ASLR is something that happens automatically, unless you take steps to suppress it, at least on MacOS X. I not long ago built with EXEC_BACKEND on that platform and found that it broke stuff until I disabled ASLR. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
