| # Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # 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 would 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 the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| # |
| # Author: Alexey Kodanev <alexey.kodanev@oracle.com> |
| # |
| # Include it to build kernel modules. |
| # REQ_VERSION_MAJOR and REQ_VERSION_PATCH must be defined beforehand. |
| # |
| |
| $(if $(REQ_VERSION_MAJOR),,$(error You must define REQ_VERSION_MAJOR)) |
| $(if $(REQ_VERSION_PATCH),,$(error You must define REQ_VERSION_MINOR)) |
| |
| ifeq ($(WITH_MODULES),no) |
| SKIP := 1 |
| else |
| ifeq ($(LINUX_VERSION_MAJOR)$(LINUX_VERSION_PATCH),) |
| SKIP := 1 |
| else |
| SKIP ?= $(shell \ |
| [ "$(LINUX_VERSION_MAJOR)" -gt "$(REQ_VERSION_MAJOR)" ] || \ |
| [ "$(LINUX_VERSION_MAJOR)" -eq "$(REQ_VERSION_MAJOR)" -a \ |
| "$(LINUX_VERSION_PATCH)" -ge "$(REQ_VERSION_PATCH)" ]; echo $$?) |
| endif |
| endif |
| |
| ifneq ($(SKIP),0) |
| MAKE_TARGETS := $(filter-out %.ko, $(MAKE_TARGETS)) |
| endif |
| |
| ifneq ($(filter install clean,$(MAKECMDGOALS)),) |
| MAKE_TARGETS := $(filter-out %.ko, $(MAKE_TARGETS)) |
| MAKE_TARGETS += $(wildcard *.ko) |
| endif |
| |
| CLEAN_TARGETS += .dep_modules |
| |
| MODULE_SOURCES := $(patsubst %.ko,%.c,$(filter %.ko, $(MAKE_TARGETS))) |
| |
| # Ignoring the exit status of commands is done to be forward compatible with |
| # kernel internal API changes. The user-space test will return TCONF, if it |
| # doesn't find the module (i.e. it wasn't built either due to kernel-devel |
| # missing or module build failure). |
| %.ko: %.c .dep_modules ; |
| |
| .dep_modules: $(MODULE_SOURCES) |
| @echo "Building modules: $(MODULE_SOURCES)" |
| -$(MAKE) -C $(LINUX_DIR) M=$(abs_srcdir) |
| rm -rf *.mod.c *.o *.ko.unsigned modules.order .tmp* .*.ko .*.cmd Module.symvers |
| @touch .dep_modules |