Re: Deterministic builds
On 25/09/13 11:51, Robert Millan wrote:
> Steven Chamberlain:
>> Maybe we ought to override that when building on non-FreeBSD?
>> $ elfedit --output-osabi=FreeBSD boot/kfreebsd-9.2-1-amd64
>
> Does this work using brandelf (from freebsd-buildutils)? It'd be a lot
> more mergeable (once upstream codebase supports foreign builds, that is).
Yes it works fine with e.g.:
/usr/lib/freebsd/brandelf -t FreeBSD boot/kfreebsd-9.2-1-486
Apart from this difference, the kernel images for kfreebsd-9.2-1-486 and
kfreebsd-9.2-1-686 were byte-for-byte identical from kfreebsd and linux
buildds, which is great!
The amd64 build is quite different though, possibly because (Robert's)
GCC package was a little older (4.8.1-8) than on the Linux amd64 buildd
when it was built there (4.8.1-10), or perhaps some other really subtle
difference in the build environment.
Regards,
--
Steven Chamberlain
steven@pyro.eu.org
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