- Axe -mpreferred-stack-boundary=2 as -Os turns this on by default.

- Axe -fdata-sections as turning it on or off makes no difference.  If
  it did make a difference it would serve to bloat boot2 even further with
  extra padding.
- Axe -fforce-addr.  This gets us 32 bytes so we are down to only being
  64-bytes over.

We still can't compile this with gcc 3.1.  The problem seems to be that
the -fno-align-foo options don't actually work.  Comparing the new and
old output it turns out that gcc is 4-byte padding all the functions and
labels and what not despite the passed in arguments thus adding the
unfortunate bloat to boot2.

sys/boot/i386/boot2/Makefile

@@ -27,9 +27,9 @@ BTX=	${.CURDIR}/../btx
 ORG1=	0x7c00
 ORG2=	0x1000
 
-CFLAGS=	-elf -ffreestanding -Os -fno-builtin -fforce-addr -fdata-sections \
+CFLAGS=	-elf -ffreestanding -Os -fno-builtin \
 	-fno-align-functions -fno-align-jumps -fno-align-loops -fno-align-labels \
-	-mrtd -mpreferred-stack-boundary=2 \
+	-mrtd \
 	-I${.CURDIR}/../btx/lib -I. \
 	-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
 	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \

sys/boot/i386/gptboot/Makefile

@@ -27,9 +27,9 @@ BTX=	${.CURDIR}/../btx
 ORG1=	0x7c00
 ORG2=	0x1000
 
-CFLAGS=	-elf -ffreestanding -Os -fno-builtin -fforce-addr -fdata-sections \
+CFLAGS=	-elf -ffreestanding -Os -fno-builtin \
 	-fno-align-functions -fno-align-jumps -fno-align-loops -fno-align-labels \
-	-mrtd -mpreferred-stack-boundary=2 \
+	-mrtd \
 	-I${.CURDIR}/../btx/lib -I. \
 	-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
 	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \