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iphitus

Forum Fellow

From: Melbourne, Australia

Registered: 2004-10-09

Posts: 4,927

script to easily build modules for custom kernels

I got bored, and thought of this ages ago. I have no use for it now, but i'm sure someone else will.

run:
abs-module $modulename $kernel

$modulename is any kernel module that's available in /var/abs, so if you have some that arent in a default abs, put em in /var/abs/local and they will be spotted by this.

$kernel is the name of the kernel that you want to compile for. this can be found with 'uname -r'. If $kernel is not specified, then it will default to what you are running now.

this will only work for module packages that have a variable called _kernver which sets the kernel it will be compiled for. I know all the winmodems, ATi and drivers I maintain do, not sure about some of the others. nvidia won't work.

#! /bin/bash

# Set the variables up
module="$1"
kernel="$2"
pacman="1"
current="`uname -r`"

# Check things
if [ -z "$module" ]; then
    echo "No module specified"
    return 1
fi
if [ -z "$kernel" ]; then
    echo "No kernel specified, building for: $current"
    kernel="$current"
fi
if [ ! -e "/lib/modules/$kernel/build" ]; then
    echo "Specified kernel is not installed"
    return 1
fi
 
# Check if module exists
origdir="`find /var/abs -type d -name $module`"
if [ -z "$origdir" ]; then
    echo "Specified module does not exist"
    return 1
fi

# Prepare to build
newdir="/var/abs/local/$module-$kernel"
if [ -d "$newdir" ]; then
    rm -rf "$newdir"
fi

cp -R $origdir $newdir

cd $newdir

source PKGBUILD
if [ -z "$_kernver" ]; then
    echo "PKGBUILD does not have $_kernver." 
    return 1
fi

sed "s/$_kernver/$kernel/g" -i PKGBUILD
sed "s/pkgname=$pkgname/pkgname=$pkgname-$kernel/g" -i PKGBUILD

# Build!
makepkg

# Post build messages/install
if [ $? = 0 ]; then
    package="`find $newdir -name *pkg.tar.gz`"
    
    # variable is at top
    if [ "$pacman" = "1" ]; then
        pacman -U $package
    else
        echo "Package is ready to install: $package"
    fi
else
    echo "Build failed"
fi

sorry if there's any stupid bash in there, i'm tired. and yeah, I know it's a tad verbose and spacy, but it seems to works fine.

James

kozaki

Member

From: London >. < Paris

Registered: 2005-06-13

Posts: 671

Website

Re: script to easily build modules for custom kernels

Iphitus > I'm looking 4 something like your script that will allow me to load spca5xx when running my custom kernelbeyond

Unfortunetely spca5xx seems not to be manageable by your abs-module script, as its PKGBUILD doesn't have a variable called _kernver.
Log :

/usr/bin/abs-make-module spca5xx
No kernel specified, building for: 2.6.17-beyond-LLEWELLYN
PKGBUILD does not have .
/usr/bin/abs-make-module: line 52: return: can only `return' from a function or sourced script
sed: -e expression #1, char 0: no previous regular expression
==> Making package: spca5xx-2.6.17-beyond-LLEWELLYN 0.60.00-2 (Sun Jul 23 11:44:52 CEST 2006)

(...)
==> Validating source files with MD5sums
    spca5xx-20060501.tar.gz ... Passed
==> Extracting Sources...
==>     tar --use-compress-program=gzip -xf spca5xx-20060501.tar.gz
tar: spca5xx-20060501/drivers: implausibly old time stamp 1970-01-01 01:00:00
==> Starting build()...
./PKGBUILD: line 13: cd: /var/abs/local/spca5xx-2.6.17-beyond-LLEWELLYN/src/spca5xx-2.6.17-beyond-LLEWELLYN-20060501: No such file or directory
make: *** No targets specified and no makefile found.  Stop.
==> ERROR: Build Failed.  Aborting...
Build failed

---

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tomk

Forum Fellow

From: Ireland

Registered: 2004-07-21

Posts: 9,839

Re: script to easily build modules for custom kernels

By default, spca5xx uses `uname -r` to build the module for the running kernel, so I'd say you'd be better off getting the PKGBUILD and install files from abs and just building it with makepkg.

Incidentally, _kernver could be implemented for this module as follows:

- in the variables section of the PKGBUILD, set

_kernver=<your_kernel_version>

- in the build() function, change

make || return 1

to

 make KINCLUDE=/usr/src/linux-${_kernver}/include || return 1

If it bothers you a lot, suggest it in a comment.