diff options
| author | Srinivas Girigowda <sgirigow@codeaurora.org> | 2018-01-31 18:39:11 -0800 |
|---|---|---|
| committer | snandini <snandini@codeaurora.org> | 2018-02-01 16:26:31 -0800 |
| commit | 5e8c55e22992fefa5da3732be081d6141c961658 (patch) | |
| tree | beb01aeea57fc49ec1ff0fb9f3a9fab53767e579 | |
| parent | 926a1c6866972c58f45159dd064307e18033921d (diff) | |
qcacld-3.0: Allow out-of-tree build with relative path in M
The Make variable $(M) must point to the directory that contains the
module source code (which includes this Makefile). It can either be an
absolute or a relative path. If it is a relative path, then it must be
relative to the kernel source directory (KERNEL_SRC). An absolute path
can be obtained very easily through $(shell pwd). Generating a path
relative to KERNEL_SRC is difficult and we accept some outside help by
letting the caller override the variable $(M). Allowing a relative path
for $(M) enables us to have the build system put output/object files
(.o, .ko.) into a directory different from the module source directory.
Change-Id: Ic5dbcaa4579e4b7fe8b01399e03293c3bd425d27
CRs-Fixed: 2182672
| -rw-r--r-- | Makefile | 20 |
1 files changed, 16 insertions, 4 deletions
@@ -1,6 +1,18 @@ KERNEL_SRC ?= /lib/modules/$(shell uname -r)/build -KBUILD_OPTIONS := WLAN_ROOT=$(PWD) +# The Make variable $(M) must point to the directory that contains the module +# source code (which includes this Makefile). It can either be an absolute or a +# relative path. If it is a relative path, then it must be relative to the +# kernel source directory (KERNEL_SRC). An absolute path can be obtained very +# easily through $(shell pwd). Generating a path relative to KERNEL_SRC is +# difficult and we accept some outside help by letting the caller override the +# variable $(M). Allowing a relative path for $(M) enables us to have the build +# system put output/object files (.o, .ko.) into a directory different from the +# module source directory. +M ?= $(shell pwd) + +# WLAN_ROOT must contain an absolute path (i.e. not a relative path) +KBUILD_OPTIONS := WLAN_ROOT=$(shell cd $(KERNEL_SRC); readlink -e $(M)) KBUILD_OPTIONS += MODNAME?=wlan #By default build for CLD @@ -11,10 +23,10 @@ KBUILD_OPTIONS += $(WLAN_SELECT) KBUILD_OPTIONS += $(KBUILD_EXTRA) # Extra config if any all: - $(MAKE) -C $(KERNEL_SRC) M=$(shell pwd) modules $(KBUILD_OPTIONS) + $(MAKE) -C $(KERNEL_SRC) M=$(M) modules $(KBUILD_OPTIONS) modules_install: - $(MAKE) INSTALL_MOD_STRIP=1 -C $(KERNEL_SRC) M=$(shell pwd) modules_install + $(MAKE) INSTALL_MOD_STRIP=1 M=$(M) -C $(KERNEL_SRC) modules_install clean: - $(MAKE) -C $(KERNEL_SRC) M=$(PWD) clean + $(MAKE) -C $(KERNEL_SRC) M=$(M) clean |