diff options
| author | peter <peter@FreeBSD.org> | 1995-10-06 02:57:26 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 1995-10-06 02:57:26 +0000 |
| commit | d76ed025851872b45fc81bd8a17258ed239a8bbd (patch) | |
| tree | d4f732b74bc57e66c4bf966087cd3d698c32df52 /sys/i386/boot/kzipboot | |
| parent | edc5cbc960eb072befe775f7b08491807b8e943e (diff) | |
| download | FreeBSD-src-d76ed025851872b45fc81bd8a17258ed239a8bbd.zip FreeBSD-src-d76ed025851872b45fc81bd8a17258ed239a8bbd.tar.gz | |
Part 2 of the overlapping kzip changes.
Submitted by: Gary Jones(?) <gj@freefall>
Diffstat (limited to 'sys/i386/boot/kzipboot')
| -rw-r--r-- | sys/i386/boot/kzipboot/Makefile | 17 | ||||
| -rw-r--r-- | sys/i386/boot/kzipboot/head.S | 15 | ||||
| -rw-r--r-- | sys/i386/boot/kzipboot/tail.S | 12 |
3 files changed, 31 insertions, 13 deletions
diff --git a/sys/i386/boot/kzipboot/Makefile b/sys/i386/boot/kzipboot/Makefile index 7295df1..4259d8f 100644 --- a/sys/i386/boot/kzipboot/Makefile +++ b/sys/i386/boot/kzipboot/Makefile @@ -1,8 +1,10 @@ -# $Id: Makefile,v 1.2 1995/05/29 01:38:03 phk Exp $ +# $Id: Makefile,v 1.3 1995/08/15 19:36:02 joerg Exp $ -PROG= kzip.o +PROG= kztail.o kzhead.o BINMODE = 444 # target is a relocatable object -SRCS= head.S boot.c unzip.c misc.c malloc.c inflate.c +SRCS= tail.S head.S boot.c unzip.c misc.c malloc.c inflate.c +OBJS_KZHEAD= head.o +OBJS_KZTAIL= tail.o boot.o unzip.o misc.o malloc.o inflate.o BINDIR= /usr/lib .PATH: ${.CURDIR}/../../../kern NOMAN= toobad @@ -13,12 +15,15 @@ KADDR = 0x100000 # What segment our code lives in CSEG = 0x8 -STRIP= # very important!! don't let kzip.o be stripped +STRIP= # very important!! don't let kz*.o be stripped CFLAGS+= -DKADDR=$(KADDR) -DCSEG=$(CSEG) CFLAGS+= -DKZIP -DCOMCONSOLE=0x3F8 -kzip.o: ${OBJS} - $(LD) -r -x -o kzip.o $(OBJS) +kztail.o: ${OBJS_KZTAIL} + $(LD) -r -x -o kztail.o $(OBJS_KZTAIL) + +kzhead.o: ${OBJS_KZHEAD} + $(LD) -r -x -o kzhead.o $(OBJS_KZHEAD) .include <bsd.prog.mk> diff --git a/sys/i386/boot/kzipboot/head.S b/sys/i386/boot/kzipboot/head.S index e720082..66d29b1 100644 --- a/sys/i386/boot/kzipboot/head.S +++ b/sys/i386/boot/kzipboot/head.S @@ -1,12 +1,13 @@ /* - * Boot unpacker startup routine. + * Leader for kernel + * This needs to be at the beginning, so the start address is passed + * to the boot loader * Copyright (C) Serge Vakulenko */ .text -start: + .globl kzstart +kzstart: cli # disable interrupts - pushl 4(%esp) # pass howto arg - call _boot # unpack the kernel image - popl %eax # discard howto arg - ljmp $CSEG, $KADDR # jump to unpacked kernel - . = start + 0x500 # skip over warm boot shit + call start # unpack the kernel image + # never return here. + . = kzstart + 0x500 # skip warm boot stuff diff --git a/sys/i386/boot/kzipboot/tail.S b/sys/i386/boot/kzipboot/tail.S new file mode 100644 index 0000000..1a34541 --- /dev/null +++ b/sys/i386/boot/kzipboot/tail.S @@ -0,0 +1,12 @@ +/* + * Boot unpacker startup routine. + * Copyright (C) Serge Vakulenko + */ + .text + .globl start +start: + popl %eax # remove return addr + pushl 4(%esp) # pass howto arg + call _boot # unpack the kernel image + popl %eax # discard howto arg + ljmp $CSEG, $KADDR # jump to unpacked kernel |
