Horton

Re: Worth using personality(ADDR_NO_RANDOMIZE) for EXEC_BACKEND on linux?

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Andres Freund <andres@anarazel.de>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Andrew Dunstan <andrew@dunslane.net>, PostgreSQL Development <pgsql-hackers@postgresql.org>
Date: 2021-08-11T13:45:45Z
Lists: pgsql-hackers 
On Tue, Aug 10, 2021 at 7:59 PM Thomas Munro <thomas.munro@gmail.com> wrote:
> I saw claims that you can also link with -Wl,-no_pie or toggle the PIE
> bit on your executable and libraries, but that didn't work for me on
> 11, Intel (no effect) or ARM (linker option gone).

I think that worked for me on older macOS releases, and then it
stopped working at some point after some update or reinstall or
something. Unfortunately I don't know any more precisely than that,
but it does seem like we have to find some other approach to work on
modern systems.

Hopefully they don't keep whacking this around...

-- 
Robert Haas
EDB: http://www.enterprisedb.com

Commits

  1. Make EXEC_BACKEND more convenient on Linux and FreeBSD.

  2. Make EXEC_BACKEND more convenient on macOS.