Date: Thu, 9 May 2002 10:14:15 -0700 From: "David O'Brien" <obrien@freebsd.org> To: current@freebsd.org Subject: I need 96 bytes less of boot2, anyone want to hack? Message-ID: <20020509101415.A12865@dragon.nuxi.com>
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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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