From owner-freebsd-current  Thu May  9 10:46:10 2002
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Date: Thu, 09 May 2002 10:45:35 -0700
From: Terry Lambert <tlambert2@mindspring.com>
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To: obrien@freebsd.org
Cc: current@freebsd.org
Subject: Re: I need 96 bytes less of boot2, anyone want to hack?
References: <20020509101415.A12865@dragon.nuxi.com>
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I had to recover about this amount, before.

The way I ended up doing it was to hack all the strings shorter.

Boots were ugly, but they worked.  8-(.

-- Terry

David O'Brien wrote:
> 
> When building /sys/boot on i386 with Gcc 3.1, one gets "-96 bytes
> available".  Anyone want to install the gcc31 port, build /sys/boot with
> "make CC=gcc31" and try to hack out 96 bytes?
> 
> You will need this diff also.
> 
> Index: boot2/Makefile
> ===================================================================
> RCS file: /home/ncvs/src/sys/boot/i386/boot2/Makefile,v
> retrieving revision 1.22
> diff -u -r1.22 Makefile
> --- boot2/Makefile      31 Jul 2001 19:50:09 -0000      1.22
> +++ boot2/Makefile      8 May 2002 23:30:16 -0000
> @@ -27,10 +27,10 @@
>  ORG1=  0x7c00
>  ORG2=  0x1000
> 
> -CFLAGS=        -elf -I${.CURDIR}/../btx/lib -I. \
> -       -Os -fno-builtin -fforce-addr -fdata-sections \
> -       -malign-functions=0 -malign-jumps=0 -malign-loops=0 -mrtd \
> -       -mpreferred-stack-boundary=2 \
> +CFLAGS=        -elf -ffreestanding -Os -fno-builtin -fforce-addr -fdata-sections \
> +       -fno-align-functions -fno-align-jumps -fno-align-loops -fno-align-labels \
> +       -mrtd -mpreferred-stack-boundary=2 \
> +       -I${.CURDIR}/../btx/lib -I. \
>         -Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
>         -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
>         -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings
> 
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