# -*- mode: Makefile; -*-
#============================================================================
#
# Copyright (C) 2004 Mike Wray <mike.wray@hp.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free software Foundation, Inc.,
# 59 Temple Place, suite 330, Boston, MA 02111-1307 USA
#============================================================================

LINUX_SERIES?=2.6

LINUX_VERSION?=$(shell (/bin/ls -d $(XEN_ROOT)/linux-$(LINUX_SERIES).* 2>/dev/null) | \
                      sed -e 's!^.*linux-\(.\+\).hg!\1!' )

ifeq ($(LINUX_VERSION),)
$(error Kernel source for linux $(LINUX_SERIES) not found)
endif

KERNEL_VERSION?=$(shell (/bin/ls -d $(XEN_ROOT)/build-linux-$(LINUX_VERSION)* 2>/dev/null) | \
                      grep -v -m 1 -e '-xenU' | \
                      sed -e 's!^.*linux-\(.\+\)!\1!' )

KERNEL_SRC ?= $(XEN_ROOT)/build-linux-$(KERNEL_VERSION)

ifeq ($(KERNEL_SRC),)
$(error Kernel source for kernel $(KERNEL_VERSION) not found)
endif

# Get the full kernel release version from its makefile, as the source path
# may not have the extraversion, e.g. linux-2.6.12-xen0 may contain release 
# 2.6.12.6-xen0.
KERNEL_RELEASE=$(shell make -s -C $(KERNEL_SRC) kernelrelease)

KERNEL_MODULE_DIR=/lib/modules/$(KERNEL_RELEASE)/kernel

$(warning KERNEL_SRC		$(KERNEL_SRC))
$(warning LINUX_VERSION		$(LINUX_VERSION))
$(warning KERNEL_VERSION	$(KERNEL_VERSION))
$(warning KERNEL_RELEASE	$(KERNEL_RELEASE))
$(warning KERNEL_MODULE_DIR	$(KERNEL_MODULE_DIR))
