Building world and kernel on RPI3 B+ compilation failure, unwind-dw2.c.

[Brian Bostwick]

So, to be consistent, I am now using two 12 release images and I am hitting
the same error. Compiling between two images being emulated under QEMU. I
don't have a src.conf file and I am not sure how to set one up. Is there
one specifically for building on the ARM architecture and can you provide
the one you are using? Thanks!

On Mon, Sep 30, 2019 at 9:05 PM John Kennedy <warlock at phouka.net> wrote:

> On Sun, Sep 29, 2019 at 09:46:54AM -0700, John Kennedy wrote:
> > Well, It's a RPI3B+, so I'll let you know in ~28-31 hours, give or take
> what
> > point in the compile that fragment lands in.
>
>   I had no problems crunching BETA2 from BETA1.
>
>         FreeBSD 12.1-BETA2 #41 r352780+b78e5b46c44c(releng/12.1)-dirty:
> Mon Sep 30 11:10:03 PDT 2019
>
>   What does your src.conf look like?  WITHOUT_LLVM_LIBUNWIND set?  Maybe
> anti-LLVM/pro-GCC in some other way?
>
>   From src.conf(5):
>      WITHOUT_LLVM_LIBUNWIND
>         Set to use GCC's stack unwinder (instead of LLVM's libunwind).
>
>         This is a default setting on arm/arm, arm/armv6, arm/armv7,
>         powerpc/powerpc, powerpc/powerpc64, powerpc/powerpcspe and
>         sparc64/sparc64.
>
>   You had problems in /usr/src/gnu/lib/libgcc, which seems to be triggered
> on
> something like that (I really haven't tried to delve that deep into the
> FreeBSD
> source Makefiles).  Maybe copied configuration settings over from a
> previous
> RPI?  Your RPI3B+ is arm64, so if you had that set you might want to yank
> it.
>
>     [/usr/src/gnu/lib/Makefile]
>         .if ${MK_LLVM_LIBUNWIND} == "no"
>         SUBDIR+=                libgcc
>         .endif
>
>   My build didn't go down into that directory at all.
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