On 14/11/16 20:12, Tom Rini wrote:
On Mon, Nov 14, 2016 at 07:43:40PM +0000, André Przywara wrote:
[snip]
On a related matter, I ran buildman on HEAD for armv8 today and GCC 6.2 found quite some issues (will send out the fixes ASAP). So is there some buildbot somewhere that runs buildman? If yes, with what compilers?
What gcc-6.2 compilers are you using?
I just built my own, in fact for Trusty. I have some easy build scripts here [1], though the README needs some update. With this I create .deb packages for binutils and gcc-stage1 of (almost) any vanilla GCC version you throw at it.
I don't know of any newer GCC in some proper repo, historically not many people cared and either built their own or used a Linaro drop.
The travis-ci setup is using the Ubuntu 'Trusty' compilers, which are not that recent. I also have been running debian/unstable in a chroot, but it's old enough of a copy to be using gcc-5.3.1 currently. I'm going to kick off a new debootstrap now'ish to see what toolchain versions I can get there. Do you know if these gcc-6.2 problems you see would also show up for rpi3 in 64bit mode?
I didn't observe any runtime issues (though at least someone else did in one occasion). The compiler warnings are mostly due to the new GCC6 option -Wmisleading-indentation, which seems to be enabled by default. Some of them are really just wrong indentation, so cosmetic, but others are genuine bugs. I will send patches later today ($work here atm).
That's my current easiest test platform for aarch64. Thanks!
As said this was observed only by running buildman, so you shouldn't need any actual hardware to see this.
Cheers, Andre.