1 files changed, 64 insertions, 0 deletions
diff --git a/sys/boot/powerpc/boot1.chrp/generate-hfs.sh b/sys/boot/powerpc/boot1.chrp/generate-hfs.sh
new file mode 100755
index 0000000..ab5694d
--- /dev/null
+++ b/sys/boot/powerpc/boot1.chrp/generate-hfs.sh
@@ -0,0 +1,64 @@
+#!/bin/sh
+
+# This script generates the dummy HFS filesystem used for the PowerPC boot
+# blocks. It uses hfsutils (emulators/hfsutils) to generate a template
+# filesystem with the relevant interesting files. These are then found by
+# grep, and the offsets written to a Makefile snippet.
+#
+# Because of licensing concerns, and because it is overkill, we do not
+# distribute hfsutils as a build tool. If you need to regenerate the HFS
+# template (e.g. because the boot block or the CHRP script have grown),
+# you must install it from ports.
+
+# $FreeBSD$
+
+HFS_SIZE=1600 			#Size in 512-byte blocks of the produced image
+
+CHRPBOOT_SIZE=2k
+BOOT1_SIZE=30k
+
+# Generate 800K HFS image
+OUTPUT_FILE=hfs.tmpl
+
+dd if=/dev/zero of=$OUTPUT_FILE bs=512 count=$HFS_SIZE
+hformat -l "FreeBSD Bootstrap" $OUTPUT_FILE
+hmount $OUTPUT_FILE
+
+# Create and bless a directory for the boot loader
+hmkdir ppc
+hattrib -b ppc
+hcd ppc
+
+# Make two dummy files for the the CHRP boot script and boot1
+echo 'Bootinfo START' | dd of=bootinfo.txt.tmp cbs=$CHRPBOOT_SIZE count=1 conv=block
+echo 'Boot1 START' | dd of=boot1.elf.tmp cbs=$BOOT1_SIZE count=1 conv=block
+
+hcopy boot1.elf.tmp :boot1.elf
+hcopy bootinfo.txt.tmp :bootinfo.txt
+hattrib -c chrp -t tbxi bootinfo.txt
+humount
+
+rm bootinfo.txt.tmp
+rm boot1.elf.tmp
+
+# Locate the offsets of the two fake files
+BOOTINFO_OFFSET=$(hd $OUTPUT_FILE | grep 'Bootinfo START' | cut -f 1 -d ' ')
+BOOT1_OFFSET=$(hd $OUTPUT_FILE | grep 'Boot1 START' | cut -f 1 -d ' ')
+
+# Convert to numbers of blocks
+BOOTINFO_OFFSET=$(echo 0x$BOOTINFO_OFFSET | awk '{printf("%x\n",$1/512);}')
+BOOT1_OFFSET=$(echo 0x$BOOT1_OFFSET | awk '{printf("%x\n",$1/512);}')
+
+echo '# This file autogenerated by generate-hfs.sh - DO NOT EDIT' > Makefile.hfs
+echo '# $FreeBSD$' >> Makefile.hfs
+echo "BOOTINFO_OFFSET=0x$BOOTINFO_OFFSET" >> Makefile.hfs
+echo "BOOT1_OFFSET=0x$BOOT1_OFFSET" >> Makefile.hfs
+
+bzip2 $OUTPUT_FILE
+echo 'HFS template boot filesystem created by generate-hfs.sh' > $OUTPUT_FILE.bz2.uu
+echo 'DO NOT EDIT' >> $OUTPUT_FILE.bz2.uu
+echo '$FreeBSD$' >> $OUTPUT_FILE.bz2.uu
+
+uuencode $OUTPUT_FILE.bz2 $OUTPUT_FILE.bz2 >> $OUTPUT_FILE.bz2.uu
+rm $OUTPUT_FILE.bz2
+