projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d89e9d6b LB |
1 | #!/bin/bash |
| 2 | # Adds a DSDT file to the initrd (if it's an initramfs) | |
| 3 | # first argument is the name of archive | |
| 4 | # second argument is the name of the file to add | |
| 5 | # The file will be copied as /DSDT.aml | |
| 6 | ||
| 7 | # 20060126: fix "Premature end of file" with some old cpio (Roland Robic) | |
| 8 | # 20060205: this time it should really work | |
| 9 | ||
| 10 | # check the arguments | |
| 11 | if [ $# -ne 2 ]; then | |
| 12 | program_name=$(basename $0) | |
| 13 | echo "\ | |
| 14 | $program_name: too few arguments | |
| 15 | Usage: $program_name initrd-name.img DSDT-to-add.aml | |
| 16 | Adds a DSDT file to an initrd (in initramfs format) | |
| 17 | ||
| 18 | initrd-name.img: filename of the initrd in initramfs format | |
| 19 | DSDT-to-add.aml: filename of the DSDT file to add | |
| 20 | " 1>&2 | |
| 21 | exit 1 | |
| 22 | fi | |
| 23 | ||
| 24 | # we should check it's an initramfs | |
| 25 | ||
| 26 | tempcpio=$(mktemp -d) | |
| 27 | # cleanup on exit, hangup, interrupt, quit, termination | |
| 28 | trap 'rm -rf $tempcpio' 0 1 2 3 15 | |
| 29 | ||
| 30 | # extract the archive | |
| 31 | gunzip -c "$1" > "$tempcpio"/initramfs.cpio || exit 1 | |
| 32 | ||
| 33 | # copy the DSDT file at the root of the directory so that we can call it "/DSDT.aml" | |
| 34 | cp -f "$2" "$tempcpio"/DSDT.aml | |
| 35 | ||
| 36 | # add the file | |
| 37 | cd "$tempcpio" | |
| 38 | (echo DSDT.aml | cpio --quiet -H newc -o -A -O "$tempcpio"/initramfs.cpio) || exit 1 | |
| 39 | cd "$OLDPWD" | |
| 40 | ||
| 41 | # re-compress the archive | |
| 42 | gzip -c "$tempcpio"/initramfs.cpio > "$1" | |
| 43 |