sonic-buildimage/platform/broadcom/saibcm-modules/make/Make.linux

#
#  Copyright 2017 Broadcom
#  
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License, version 2, as
#  published by the Free Software Foundation (the "GPL").
#  
#  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 version 2 (GPLv2) for more details.
#  
#  You should have received a copy of the GNU General Public License
#  version 2 (GPLv2) along with this source code.
#
#
# $Id: Make.linux,v 1.18 Broadcom SDK $
# $Copyright: (c) 2005 Broadcom Corp.
# All Rights Reserved.$
# 
# Common make targets for Linux user and kernel builds included by top
# level Linux makefiles
#
# Variables referenced:
#
# LINUX_MAKE_FLAGS
#   Additional flags passed to Make
#
# LINUX_MAKE_USER
#   Defined: user build
#   Undefined: kernel build
#
# LINUX_MAKE_DIR
#   Common makefile location, if it is not ../common
#
#

export DEST_DIR_SUFFIX :=$(subst $(realpath $(SDK))/systems,,$(realpath $(CURDIR)/$(dir ($(firstword $(MAKEFILE_LIST))))))

ifeq (,$(kernel_version))
kernel_version=2_4
endif

ifndef LINUX_MAKE_SHARED_LIB
LINUX_MAKE_SHARED_LIB=0
endif

ifeq (,$(SHAREDLIBVER))
SHAREDLIBVER=1
endif

ifndef LINUX_MAKE_DIR
ifdef LINUX_MAKE_USER
LINUX_MAKE_DIR := $(SDK)/systems/linux/user/common
else
LINUX_MAKE_DIR := $(SDK)/systems/linux/kernel/common
endif
endif

ifdef LINUX_MAKE_USER
  CMD = $(LINUX_MAKE_FLAGS) -C $(LINUX_MAKE_DIR) \
        platform=$(platform) bldroot_suffix=/$(platform) kernel_version=$(kernel_version) \
        LINUX_MAKE_SHARED_LIB=$(LINUX_MAKE_SHARED_LIB) SHAREDLIBVER=$(SHAREDLIBVER)
else
  export LINUX_MAKE_KERNEL := 1
  CMD = $(LINUX_MAKE_FLAGS) -C $(LINUX_MAKE_DIR) \
        platform=$(platform) kernel_version=$(kernel_version)
endif

ifneq (,$(MIPS_TOOLS_DIR))
  CMD += MIPS_TOOLS_DIR=$(MIPS_TOOLS_DIR)
endif

ifneq (,$(MIPS_CROSS_COMPILE))
  CMD += MIPS_CROSS_COMPILE=$(MIPS_CROSS_COMPILE)
endif

ifneq (,$(LINUX_INCLUDE))
  CMD += LINUX_INCLUDE=$(LINUX_INCLUDE)
endif

# gmake does not understand $(CMD) to be a submake
# options are to +$(CMD) or $(MAKE) $(CMD)
# trying the latter
build:
	$(MAKE) $(CMD)

DELIVER clean C_COMPILER CXX_COMPILER variable mod bcm user issu:
	$(MAKE) $(CMD) $@

clean_d: clean

distclean:
	$(MAKE) $(CMD) $@
        
.PHONY: build clean distclean clean_d DELIVER variable mod bcm user issu