Linux kernel makefile cscope target

When I generate Linux kernel cscope database by issuing make cscope I get database file along with a list of files with relative path. This is a problem for me because later on when I attach that external kernel's database in vim editor from whatever directory but kernel's I can easily search for specific symbol BUT I can't open file that symbol is contained in.

I've written the next bash script

#!/bin/bash

SNAME="$0"
SNAME=${SNAME##*/}

function usage()
{
    echo Generate Linux kernel cscope database
    echo "Usage: $SNAME [PATH]"
    echo -n "You must provide this script with an ABSOLUTE path of your "
    echo "kernel's root directory"
}

if [[ -z "$1" ]]; then
    usage
    exit -1
fi

KDIR="$1"

echo -n "Collecting a list of files... "
if find "$KDIR" -path "${KDIR}/arch/*" ! -path "${KDIR}/arch/x86*" -prune -o \
        -path "${KDIR}/include/asm-*" \
        ! -path "${KDIR}/include/asm-generic*" \
        ! -path "${KDIR}/include/asm-x86*" -prune -o \
        -path "${KDIR}/tmp*" -prune -o \
        -path "${KDIR}/Documentation*" -prune -o \
        -path "${KDIR}/scripts*" -prune -o \
        -name "*.[chxsS]" -print > cscope.files; then
    echo done
else
    echo failed
fi

echo -n "Building cscope database... "
cscope -k -qb && echo done || echo failed

that collects all files I need (x86/x86_64 architecture) using absolute path and then I successfully build cscope database manually. But I think it must be some easier way to accomplish this. Maybe some Makefile's target like make cscope_abs or make cscope_ext that I have not found yet.

Any suggestions?

Solution

From the cscope manpage here:

-P path Prepend path to relative file names in a pre-built cross-reference file so you do not have to change to the directory where the cross-reference file was built. This option is only valid with the -d option.

So I guess the following command from the top-level kernel directory should do the trick (sorry no linux machine handy):

cscope -d -P `pwd`

my 2 cents,