1 2.include <bsd.init.mk> 3 4PROG= boot1.elf 5NEWVERSWHAT= "Open Firmware boot block" ${MACHINE_ARCH} 6INSTALLFLAGS= -b 7 8FILES= boot1.hfs 9SRCS= boot1.c ashldi3.c syncicache.c 10 11CFLAGS+=-I${LDRSRC} 12# Load boot1.elf below kernel. 13# 14# Due to limitiations in the way we load stuff, we have to avoid reusing 15# memory until the kernel MMU code has taken over. 16# 17# 0x38000 is high enough to not interfere with the trap area, but low 18# enough that it doesn't bump into the kernel area starting at 0x100000, 19# even if the entire partition gets used as the load size by a buggy OFW. 20# 21# In theory 0xf0000 would work too under the current 64k size limit for 22# boot1.elf defined in the HFS template, but sometimes boot1.elf is written 23# directly to the PReP partition. 24# 25LDFLAGS=-nostdlib -static -Wl,-N -Wl,-Ttext=0x38000 26 27.PATH: ${SYSDIR}/libkern ${SRCTOP}/lib/libc/powerpc/gen ${.CURDIR} 28 29# The following inserts out objects into a template HFS 30# created by generate-hfs.sh 31 32.include "${.CURDIR}/Makefile.hfs" 33 34boot1.hfs: boot1.elf bootinfo.txt 35 echo ${.OBJDIR} 36 uudecode ${.CURDIR}/hfs.tmpl.bz2.uu 37 mv hfs.tmpl.bz2 ${.TARGET}.bz2 38 bzip2 -f -d ${.TARGET}.bz2 39 ${DD} if=boot1.elf of=${.TARGET} seek=${BOOT1_OFFSET} conv=notrunc 40 ${DD} if=${.CURDIR}/bootinfo.txt of=${.TARGET} seek=${BOOTINFO_OFFSET} \ 41 conv=notrunc 42 43CLEANFILES+= boot1.hfs 44 45MK_PIE= no 46 47.include <bsd.prog.mk> 48 49