Good morning, Jason!
On Fri, 19 Jun 2020 at 00:50, Jason A. Donenfeld wrote:
>
> Hey Rui,
>
> I fixed it! It turned out to be caused by -fvisibility=hidden undoing
> the effect of the binutils fix from a while back. Here's the patch
> that makes the problem go away:
>
> https://git.zx2c4.com/wire
Hey Rui,
I fixed it! It turned out to be caused by -fvisibility=hidden undoing
the effect of the binutils fix from a while back. Here's the patch
that makes the problem go away:
https://git.zx2c4.com/wireguard-linux-compat/commit/?id=178cdfffb99f2fd6fb4a5bfd2f9319461d93f53b
This will be in the n
On Wed, Jun 17, 2020 at 02:45:12PM -0600, Jason A. Donenfeld wrote:
> Looks like my explanation there wasn't 100% accurate, but it does seem
> like the issue occurs when gcc sees a clear tail call that it can
> optimize into a B instruction instead of a BL instruction.
>
> The below patch avoids t
On Wed, Jun 17, 2020 at 02:33:49PM -0600, Jason A. Donenfeld wrote:
> So, some more research: it looks like the R_ARM_THM_JUMP11 symbol is
> actually wg_packet_send_staged_packets, a boring C function with
> nothing fancy about it. That github issue you pointed to suggested
> that it might have som
So, some more research: it looks like the R_ARM_THM_JUMP11 symbol is
actually wg_packet_send_staged_packets, a boring C function with
nothing fancy about it. That github issue you pointed to suggested
that it might have something to do with complex crypto functions, but
it looks like that's not the
Hi Rui,
On Wed, Jun 17, 2020 at 7:19 AM Rui Salvaterra wrote:
> After a bit more digging [1], I believe I've narrowed it down.
> CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11=y is required in order to avoid
> the emission of R_ARM_THM_JUMP11 relocations in the WireGuard module.
> I'm now wondering why the
Hi again, Jason,
On Wed, 10 Jun 2020 at 11:09, Jason A. Donenfeld wrote:
>
> Eventually I can probably get this building and testing and find some
> hardware for this and such. But if you'd like things to move faster,
> trying to reproduce the issue in the qemu test suite will result in a
> quick
On Wed, Jun 10, 2020 at 4:05 AM Rui Salvaterra wrote:
>
> Hi, Jason,
>
> On Wed, 10 Jun 2020 at 10:31, Rui Salvaterra wrote:
> >
> > Good question. :) You're testing in QEMU (which I personally never
> > used), right? I don't know how familiar you are with OpenWrt, but I
> > can surely send you m
Hi, Jason,
Thanks for the quick reply!
On Wed, 10 Jun 2020 at 10:20, Jason A. Donenfeld wrote:
>
> Is there some config combination you can stick into the test harness
> to repro what you're seeing?
Good question. :) You're testing in QEMU (which I personally never
used), right? I don't know ho
Hi Rui,
I'm unable to reproduce this:
$ git clone https://git.zx2c4.com/wireguard-linux-compat
$ ARCH=arm make -C wireguard-linux-compat/src test-qemu -j$(nproc)
[... big test suite ...]
$ vim wireguard-linux-compat/qemu-build/arm/linux-5.5.14/.config
[... enable CONFIG_THUMB2_KERNEL=y ...]
$ ARC
Hi, Jason,
I'm trying to build OpenWrt master with Thumb-2 instructions for my
Turris Omnia (both kernel and userspace) with GCC 9.3.0 and Binutils
2.34 from the toolchain. [1] Everything seems to work apart from
WireGuard, for some reason the module won't load, throwing the
relocation error in $s
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