Makefile.linux-kernel

# $Id: Makefile.linux-kernel 1.23 Broadcom SDK $
# $Copyright: Copyright 2011 Broadcom Corporation.
# This program is the proprietary software of Broadcom Corporation
# and/or its licensors, and may only be used, duplicated, modified
# or distributed pursuant to the terms and conditions of a separate,
# written license agreement executed between you and Broadcom
# (an "Authorized License").  Except as set forth in an Authorized
# License, Broadcom grants no license (express or implied), right
# to use, or waiver of any kind with respect to the Software, and
# Broadcom expressly reserves all rights in and to the Software
# and all intellectual property rights therein.  IF YOU HAVE
# NO AUTHORIZED LICENSE, THEN YOU HAVE NO RIGHT TO USE THIS SOFTWARE
# IN ANY WAY, AND SHOULD IMMEDIATELY NOTIFY BROADCOM AND DISCONTINUE
# ALL USE OF THE SOFTWARE.  
#  
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#  
# 1.     This program, including its structure, sequence and organization,
# constitutes the valuable trade secrets of Broadcom, and you shall use
# all reasonable efforts to protect the confidentiality thereof,
# and to use this information only in connection with your use of
# Broadcom integrated circuit products.
#  
# 2.     TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS
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# ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY.$

# Configuration Flags

# Filter out features that cannot or should not be supported in kernel mode
_FEATURE_EXCLUDE_LIST += EDITLINE TCL OOB_RCPU CINT
FEATURE_EXCLUDE_LIST = $(sort $(_FEATURE_EXCLUDE_LIST))
# Tools

CC	= $(CROSS_COMPILE)gcc
CXX	= $(CROSS_COMPILE)g++
LD	= $(CROSS_COMPILE)ld
AR	= $(CROSS_COMPILE)ar
ARFLAGS	= -rc
STRIP	= $(CROSS_COMPILE)strip
RANLIB  = $(CROSS_COMPILE)ranlib
OBJCOPY = $(CROSS_COMPILE)objcopy

# Handle differences between gcc 2.x and gcc 3.x
gcc-tune-flag = $(shell if ${CC} -dumpspecs | grep mcpu >/dev/null; then echo cpu; else echo tune; fi)

# Configuration Variables

# OSType Defines: This defines the type of RTOS or microkernel which you
# are compiling the SAL (and its associated driver) for. New platforms
# can be created by porting the routines (system.c) to your platform and
# adding the define in this Makefile.

OSTYPE = LINUX

#
# ORIGIN is used to Optionally select different CFLAGS. It is used to import
# source from other vendors. If SOURCE=Broadcom, then the BCM_ flags are added
# to those passed to the compiler. If SOURCE != Broadcom, BCM_ flags are NOT
# added.
#
# Default specifies Broadcom
#
ifndef ORIGIN
	ORIGIN = Broadcom
endif

#
# STD_{C|CPP|CXX}FLAGS - Standard flags used by ALL compilations
# BCM_{C|CPP|CXX}FLAGS - Flags used for Broadcom source files
# OPT_{C|CPP|CXX}FLAGS - Defined in local make files BEFORE inclusion of 
#			 this Makefile, to define local "Extra" flags.
#

CFGFLAGS += -I$(SDK)/systems/linux/kernel/modules/include \
	    -I$(SDK)/systems/bde/linux/include \
	    -I$(LINUX_INCLUDE)

CFGFLAGS += -DNO_FILEIO -DNO_CTRL_C -DNO_MEMTUNE

CFGFLAGS += -D$(OSTYPE)

# No user sal for the linux kernel
# NO_SAL_APPL=1

STD_CFLAGS = $(KFLAGS) $(CFGFLAGS)


STD_CPPFLAGS = ${STD_CFLAGS}
STD_CXXFLAGS = ${STD_CFLAGS}

BCM_CFLAGS   = -Wall -Werror
BCM_CPPFLAGS = ${BCM_CFLAGS}
BCM_CXXFLAGS = ${BCM_CFLAGS}

ifeq (${ORIGIN}, Broadcom)
	CFLAGS   += ${STD_CFLAGS}   ${BCM_CFLAGS}   ${OPT_CFLAGS}
	CPPFLAGS += ${STD_CPPFLAGS} ${BCM_CPPFLAGS} ${OPT_CPPFLAGS}
	CXXFLAGS += ${STD_CXXFLAGS} ${BCM_CXXFLAGS} ${OPT_CXXFLAGS}
else
	CFLAGS   += ${STD_CFLAGS}   ${OPT_CFLAGS}
	CPPFLAGS += ${STD_CPPFLAGS} ${OPT_CPPFLAGS}
	CXXFLAGS += ${STD_CXXFLAGS} ${OPT_CXXFLAGS}
endif

#
# Ignore pedantic flag for kernel modules
#
ifdef DEBUG_PEDANTIC
DEBUG_PEDANTIC = FALSE
endif

#
# DEPEND is used as a command to generate the list of dependencies.
# The format of the output must be 
#	"file.o : file.c a/b/c.h d/e/f.h ...", 
# if it is on multiple lines, each line must end in a backslash. 
# The output MUST be on standard out.
#
DEPEND = ${CC} -M $(CFLAGS) $<