Date: Mon, 10 Sep 2018 10:56:14 -0400 From: Ed Maste <emaste@freebsd.org> To: FreeBSD Current <freebsd-current@freebsd.org> Subject: Enabling the WITH_REPRODUCIBLE_BUILD knob for 12.0-REL Message-ID: <CAPyFy2C6=trSndoNmNn8SZv1Taq9n%2BtUqj3wY04DCqJ%2B-OuF5Q@mail.gmail.com>
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The FreeBSD base system is a reproducible build[1] with a minor exception: the build metadata (timestamps, user, hostname, etc.) included in the kernel and loader. With the default, non-reproducible build the kernel ident looks like: FreeBSD 12.0-ALPHA5 #4 r338195: Mon Jan 1 10:11:12 EDT 2018 user@hostname:/path/to/freebsd/src and the loader ident: FreeBSD/amd64 EFI loader, Revision 1.1 (Mon Jan 1 10:11:12 EDT 2018 user@hostname) With reproducible builds enabled the kernel ident looks like: FreeBSD 12.0-ALPHA5 r338195 and the loader ident: FreeBSD/amd64 EFI loader, Revision 1.1 I would like to enable the REPRODUCIBLE_BUILD knob by default for the 12.0 release, and propose we do this by adding a step to switch the default to the list of changes[2] that re@ commits to the branch as part of the release process. [1] https://reproducible-builds.org [2] https://www.freebsd.org/doc/en_US.ISO8859-1/articles/freebsd-releng/releng-head.html
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