Re: git: 4c8ea3efe73c - main - stand: Go back to a.out format for /boot/loader

From: John Baldwin <jhb_at_FreeBSD.org>
Date: Fri, 12 Aug 2022 16:51:40 UTC 
On 8/11/22 4:30 PM, Warner Losh wrote:
> The branch main has been updated by imp:
> 
> URL: https://cgit.FreeBSD.org/src/commit/?id=4c8ea3efe73c12d595472a7fc37177432a77858e
> 
> commit 4c8ea3efe73c12d595472a7fc37177432a77858e
> Author:     Warner Losh <imp@FreeBSD.org>
> AuthorDate: 2022-08-11 23:29:10 +0000
> Commit:     Warner Losh <imp@FreeBSD.org>
> CommitDate: 2022-08-11 23:29:10 +0000
> 
>      stand: Go back to a.out format for /boot/loader
>      
>      Turns out there's two hidden a.out dependencies. pxeldr.S assumes it has
>      access to the a.out header from /boot/loader and cdboot.S assumes that
>      /boot/loader is also a.out and doesn't use boot2.
>      
>      So, go back to making a.out files for these and adjust the size checks
>      to use ls, but we only need to check loader.bin. Trim the size we check
>      against by 2,000. The difference in size between loader and loader.bin
>      is about 3000 bytes, but clang15 produces binaries that are a smidge
>      bigger so we need to relax the check just a little and accept some
>      additional risk for the moment.
>      
>      Add some comments to loader's Makefile about this.
>      
>      Sponsored by:           Netflix
>      Reviewed by:            emaste
>      Differential Revision:  https://reviews.freebsd.org/D36142

Thanks!

-- 
John Baldwin