git: 021385aba562 - main - Add WITH_LLVM_BINUTILS to install LLVM binutils instead of Elftoolchain

[Shawn Webb]

On Mon, Sep 06, 2021 at 09:24:02AM +0000, Alex Richardson wrote:
> The branch main has been updated by arichardson:
> 
> URL: https://cgit.FreeBSD.org/src/commit/?id=021385aba56279febcfdcc64d23673a0106ae45d
> 
> commit 021385aba56279febcfdcc64d23673a0106ae45d
> Author:     Alex Richardson <arichardson at FreeBSD.org>
> AuthorDate: 2021-09-06 08:49:49 +0000
> Commit:     Alex Richardson <arichardson at FreeBSD.org>
> CommitDate: 2021-09-06 08:49:49 +0000
> 
>     Add WITH_LLVM_BINUTILS to install LLVM binutils instead of Elftoolchain
>     
>     When WITH_LLVM_BINUTILS is set, we will install the LLVM binutils as
>     ar/ranlib/nm/objcopy/etc. instead of the elftoolchain ones.
>     Having the LLVM binutils instead of the elftoolchain ones allows us to use
>     features such as LTO that depend on binutils that understand LLVM IR.
>     Another benefit will be an improved user-experience when compiling with
>     AddressSanitizer, since ASAN does not symbolize backtraces correctly if
>     addr2line is elftoolchain addr2line instead of llvm-symbolizer.
>     See https://lists.freebsd.org/archives/freebsd-toolchain/2021-July/000062.html
>     for more details.
>     
>     This is currently off by default but will be turned on by default at some
>     point in the near future.

Hey Alex,

It appears when MK_LLVM_BINUTILS is set, a strip binary/link doesn't
get installed. So /usr/bin/strip doesn't exist. This causes a problem
when building packages since even ports-mgmt/pkg relies on strip.

I'm working on a candidate patch to fix this right now. But if you
beat me to the punch, all the better. ;-)

Thanks,

-- 
Shawn Webb
Cofounder / Security Engineer
HardenedBSD

https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc
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