73d4c99d78
This is upgrading code as-is. The build will fail. Signed-off-by: Ying Xie <ying.xie@microsoft.com>
82 lines
2.6 KiB
Makefile
82 lines
2.6 KiB
Makefile
#
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# Copyright 2017 Broadcom
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License, version 2, as
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# published by the Free Software Foundation (the "GPL").
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License version 2 (GPLv2) for more details.
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#
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# You should have received a copy of the GNU General Public License
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# version 2 (GPLv2) along with this source code.
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#
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# $Id: Makefile.linux-kmodule-3_6,v 1.2 Broadcom SDK $
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# $Copyright: (c) 2006 Broadcom Corp.
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# All Rights Reserved.$
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# Due to the extensive use of driver libraries, the SDK usually builds
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# kernel modules from a precompiled object. To avoid various warnings
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# and conflicts, the pre-compiled object must be named differently
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# from the target module, and the object file itself should be
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# appended with "_shipped".
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# If a module exports any symbols, then the exporting source file must
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# be compiled within the kernel source tree for correct generation of
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# module symbol versions. The symbol source file should be passed to
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# this Makefile via the MODULE_SYM variable.
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MODULE := $(MOD_NAME).o
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KMODULE := $(MOD_NAME).ko
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PRE_COMPILED_OBJ := obj_$(MOD_NAME).o
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obj-m := $(MODULE)
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$(MOD_NAME)-y := $(MODULE_SYM) $(PRE_COMPILED_OBJ)
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ifeq (,$(CROSS_COMPILE))
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export CROSS_COMPILE
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endif
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SAVE_CFLAGS := ${CFLAGS}
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include $(SDK)/make/Make.config
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PWD := $(shell pwd)
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ifneq ($(ARCH),)
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# ELDK does not seem to `automatically' define ARCH where other gccs may
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A := ARCH=$(ARCH)
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export ARCH
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endif
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# Provide an option in case kernel was built in separate directory
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KERNBLDDIR ?= $(KERNDIR)
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# Standard SDK include path for building source files that export
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# kernel symbols.
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override EXTRA_CFLAGS = -I${SDK}/include -I${SDK}/systems/linux/kernel/modules/include -I${SDK}/systems/bde/linux/include
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# The precopiled object needs a dummy command file to avoid warnings
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# from the Kbuild scripts (modpost stage).
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# Kernels before 2.6.17 do not support external module symbols files,
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# so we create a dummy to prevent build failures.
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$(KMODULE):
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rm -f *.o *.ko .*.cmd
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rm -fr .tmp_versions
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ln -s $(LIBDIR)/$(MODULE) $(PRE_COMPILED_OBJ)_shipped
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echo "suppress warning" > .$(PRE_COMPILED_OBJ).cmd
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$(MAKE) -C $(KERNBLDDIR) CROSS_COMPILE=$(CROSS_COMPILE) M=$(PWD) modules
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if [ ! -f Module.symvers ]; then echo "old kernel (pre-2.6.17)" > Module.symvers; fi
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cp -f $(KMODULE) $(LIBDIR)
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rm -f $(PRE_COMPILED_OBJ)_shipped
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EXTRA_CFLAGS = $(CFLAGS)
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CFLAGS := ${SAVE_CFLAGS}
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