[OE-core] export TARGET_LDFLAGS and native sstate

[Khem Raj]

-Khem
On Apr 7, 2014 5:53 AM, "Mike Crowe" <mac at mcrowe.com> wrote:
>
> We're building for both ARM and MIPS-based MACHINEs in a single source
> tree. This seems to result in us compiling (or luckily most of the time
> resurrecting from sstate-cache) two different versions of all -native
> packages due to different base hashes.
>
> It seems that this difference in base hashes is due to the exported
> variable TARGET_LDFLAGS being different between the two CPUs:
>
> < export TARGET_LDFLAGS="-Wl,-O1  -Wl,--as-needed"
> ---
> > export TARGET_LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed"
>
> which in turn is because TARGET_LINK_HASH_STYLE is explicitly set to
"sysv"
> on MIPS but allowed to be "gnu" on everything else.
>
> Every time I switch back and forth between building ARM-based and
> MIPS-based machines the do_populate_sysroot_setscene tasks run for each
> required -native recipe.
>
> If I modify native.bbclass to do:
>
>  TARGET_LDFLAGS = "${BUILD_LDFLAGS}"

this is reasonable to do
>
> then the hashes match and this unnecessary sysroot population is avoided.
>
> Is this a sensible thing to be doing? It does mean that TARGET_LDFLAGS
> contains a lot of (presumably unnecessary) rpath shenanigans but perhaps
> that doesn't matter. :(
>
> Thanks.
>
> Mike.
> --
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