a2f607aa0b
Currently Android.mk uses $(shell) to create symlinks. Due to the way this is used these commands will run for every build, even if the symlinks are already present. Per the Hermetic Build feature we should not execute any unnecessary commands, especially for incremental builds where no changes are present from the prior build. Therefore change the symlink logic to use the Android symlink-file rule-based mechanism. Change-Id: I47b9de34eec0faa193263765a0a86befb5e92ced CRs-Fixed: 2907684
207 rader
6.3 KiB
Makefile
207 rader
6.3 KiB
Makefile
# Android makefile for the WLAN Module
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# set WLAN_BUILD_DEBUG=y in your environment to enable debug logging
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define wlog
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$(if $(WLAN_BUILD_DEBUG),$(info $(1)))
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endef
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LOCAL_PATH := $(call my-dir)
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$(call wlog,LOCAL_PATH=$(LOCAL_PATH))
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ENABLE_QCACLD := true
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ifeq ($(TARGET_USES_QMAA), true)
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ifneq ($(TARGET_USES_QMAA_OVERRIDE_WLAN), true)
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ENABLE_QCACLD := false
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else
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ENABLE_QCACLD := true
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endif
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endif
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ifeq ($(ENABLE_QCACLD), true)
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# Assume no targets will be supported
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WLAN_CHIPSET :=
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ifeq ($(BOARD_HAS_QCOM_WLAN), true)
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# Check if this driver needs be built for current target
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ifneq ($(findstring qca_cld3,$(WIFI_DRIVER_BUILT)),)
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WLAN_CHIPSET := qca_cld3
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WLAN_SELECT := CONFIG_QCA_CLD_WLAN=m
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endif
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# Build/Package only in case of supported target
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ifneq ($(WLAN_CHIPSET),)
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# This makefile is only for DLKM
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ifneq ($(findstring vendor,$(LOCAL_PATH)),)
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ifneq ($(findstring opensource,$(LOCAL_PATH)),)
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WLAN_BLD_DIR := vendor/qcom/opensource/wlan
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endif # opensource
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# Multi-ko check
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LOCAL_DEV_NAME := $(patsubst .%,%,\
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$(lastword $(strip $(subst /, ,$(LOCAL_PATH)))))
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$(call wlog,LOCAL_DEV_NAME=$(LOCAL_DEV_NAME))
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$(call wlog,TARGET_WLAN_CHIP=$(TARGET_WLAN_CHIP))
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TARGET_WLAN_CHIP ?= wlan
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LOCAL_MULTI_KO := false
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ifneq ($(TARGET_WLAN_CHIP), wlan)
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ifeq ($(LOCAL_DEV_NAME), qcacld-3.0)
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LOCAL_MULTI_KO := true
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endif
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endif
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ifeq ($(LOCAL_MULTI_KO), true)
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include $(foreach chip, $(TARGET_WLAN_CHIP), $(LOCAL_PATH)/.$(chip)/Android.mk)
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else # Multi-ok check
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ifeq ($(WLAN_PROFILE),)
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WLAN_PROFILE := default
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endif
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ifeq ($(LOCAL_DEV_NAME), qcacld-3.0)
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LOCAL_DEV_NAME := wlan
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LOCAL_MOD_NAME := wlan
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LOCAL_SRC_DIR :=
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TARGET_FW_DIR := firmware/wlan/qca_cld
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TARGET_CFG_PATH := /vendor/etc/wifi
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TARGET_MAC_BIN_PATH := /mnt/vendor/persist
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else
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LOCAL_SRC_DIR := .$(LOCAL_DEV_NAME)
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# Use default profile if WLAN_CFG_USE_DEFAULT defined.
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ifeq ($(WLAN_CFG_USE_DEFAULT),)
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WLAN_PROFILE := $(LOCAL_DEV_NAME)
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endif
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TARGET_FW_DIR := firmware/wlan/qca_cld/$(LOCAL_DEV_NAME)
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TARGET_CFG_PATH := /vendor/etc/wifi/$(LOCAL_DEV_NAME)
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TARGET_MAC_BIN_PATH := /mnt/vendor/persist/$(LOCAL_DEV_NAME)
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ifneq ($(TARGET_MULTI_WLAN), true)
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LOCAL_MOD_NAME := wlan
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DYNAMIC_SINGLE_CHIP := $(LOCAL_DEV_NAME)
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else
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LOCAL_MOD_NAME := $(LOCAL_DEV_NAME)
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endif
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endif
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# DLKM_DIR was moved for JELLY_BEAN (PLATFORM_SDK 16)
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ifeq ($(call is-platform-sdk-version-at-least,16),true)
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DLKM_DIR := $(TOP)/device/qcom/common/dlkm
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else
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DLKM_DIR := build/dlkm
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endif # platform-sdk-version
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# Build wlan.ko as $(WLAN_CHIPSET)_wlan.ko
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###########################################################
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# This is set once per LOCAL_PATH, not per (kernel) module
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KBUILD_OPTIONS := WLAN_ROOT=$(WLAN_BLD_DIR)/qcacld-3.0/$(LOCAL_SRC_DIR)
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KBUILD_OPTIONS += WLAN_COMMON_ROOT=cmn
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KBUILD_OPTIONS += WLAN_COMMON_INC=$(WLAN_BLD_DIR)/qcacld-3.0/cmn
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KBUILD_OPTIONS += WLAN_FW_API=$(WLAN_BLD_DIR)/fw-api
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KBUILD_OPTIONS += WLAN_PROFILE=$(WLAN_PROFILE)
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KBUILD_OPTIONS += DYNAMIC_SINGLE_CHIP=$(DYNAMIC_SINGLE_CHIP)
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# We are actually building wlan.ko here, as per the
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# requirement we are specifying <chipset>_wlan.ko as LOCAL_MODULE.
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# This means we need to rename the module to <chipset>_wlan.ko
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# after wlan.ko is built.
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KBUILD_OPTIONS += MODNAME=$(LOCAL_MOD_NAME)
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KBUILD_OPTIONS += DEVNAME=$(LOCAL_DEV_NAME)
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KBUILD_OPTIONS += BOARD_PLATFORM=$(TARGET_BOARD_PLATFORM)
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KBUILD_OPTIONS += $(WLAN_SELECT)
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ifneq ($(WLAN_CFG_OVERRIDE_$(LOCAL_DEV_NAME)),)
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KBUILD_OPTIONS += WLAN_CFG_OVERRIDE="$(WLAN_CFG_OVERRIDE_$(LOCAL_DEV_NAME))"
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endif
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# driver expects "/dev/<name>" for WIFI_DRIVER_STATE_CTRL_PARAM
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$(call wlog,WIFI_DRIVER_STATE_CTRL_PARAM=$(WIFI_DRIVER_STATE_CTRL_PARAM))
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PARAM := $(patsubst "%",%,$(WIFI_DRIVER_STATE_CTRL_PARAM))
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$(call wlog,PARAM=$(PARAM))
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ifeq ($(dir $(PARAM)),/dev/)
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KBUILD_OPTIONS += WLAN_CTRL_NAME=$(notdir $(PARAM))
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endif
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# Pass build options per chip to Kbuild. This will be injected from upper layer
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# makefile.
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#
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# e.g.
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# WLAN_KBUILD_OPTIONS_qca6390 := CONFIG_CNSS_QCA6390=y
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ifneq ($(WLAN_KBUILD_OPTIONS_$(LOCAL_DEV_NAME)),)
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KBUILD_OPTIONS += "$(WLAN_KBUILD_OPTIONS_$(LOCAL_DEV_NAME))"
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endif
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ifeq ($(PRODUCT_VENDOR_MOVE_ENABLED),true)
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TARGET_FW_PATH := $(TARGET_OUT_VENDOR)/$(TARGET_FW_DIR)
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else
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TARGET_FW_PATH := $(TARGET_OUT_ETC)/$(TARGET_FW_DIR)
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endif
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include $(CLEAR_VARS)
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# Create the module
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LOCAL_MODULE := $(WLAN_CHIPSET)_$(LOCAL_DEV_NAME).ko
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LOCAL_MODULE_KBUILD_NAME := $(LOCAL_MOD_NAME).ko
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LOCAL_MODULE_DEBUG_ENABLE := true
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ifeq ($(PRODUCT_VENDOR_MOVE_ENABLED),true)
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ifeq ($(WIFI_DRIVER_INSTALL_TO_KERNEL_OUT),true)
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LOCAL_MODULE_PATH := $(KERNEL_MODULES_OUT)
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else
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LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/lib/modules/$(WLAN_CHIPSET)
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endif
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else
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LOCAL_MODULE_PATH := $(TARGET_OUT)/lib/modules/$(WLAN_CHIPSET)
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endif
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# Create wlan_mac.bin symbolic link as part of the module
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$(call symlink-file,,$(TARGET_MAC_BIN_PATH)/wlan_mac.bin,$(TARGET_FW_PATH)/wlan_mac.bin)
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LOCAL_ADDITIONAL_DEPENDENCIES := $(TARGET_FW_PATH)/wlan_mac.bin
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# Conditionally create module symbolic link
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ifneq ($(findstring $(WLAN_CHIPSET),$(WIFI_DRIVER_DEFAULT)),)
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ifeq ($(PRODUCT_VENDOR_MOVE_ENABLED),true)
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ifneq ($(WIFI_DRIVER_INSTALL_TO_KERNEL_OUT),true)
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$(call symlink-file,,$(TARGET_COPY_OUT_VENDOR)/lib/modules/$(WLAN_CHIPSET)/$(LOCAL_MODULE),$(TARGET_OUT_VENDOR)/lib/modules/$(LOCAL_MODULE))
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LOCAL_ADDITIONAL_DEPENDENCIES += $(TARGET_OUT_VENDOR)/lib/modules/$(LOCAL_MODULE)
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endif
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else
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$(call symlink-file,,/system/lib/modules/$(WLAN_CHIPSET)/$(LOCAL_MODULE),$(TARGET_OUT)/lib/modules/$(LOCAL_MODULE))
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LOCAL_ADDITIONAL_DEPENDENCIES += $(TARGET_OUT)/lib/modules/$(LOCAL_MODULE)
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endif
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endif
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# Conditionally create ini symbolic link
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ifeq ($(TARGET_BOARD_AUTO),true)
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$(call symlink-file,,$(TARGET_CFG_PATH)/WCNSS_qcom_cfg.ini,$(TARGET_FW_PATH)/WCNSS_qcom_cfg.ini)
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LOCAL_ADDITIONAL_DEPENDENCIES += $(TARGET_FW_PATH)/WCNSS_qcom_cfg.ini
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$(call wlog,"generate soft link because TARGET_BOARD_AUTO true")
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else
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ifneq ($(GENERIC_ODM_IMAGE),true)
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$(call symlink-file,,$(TARGET_CFG_PATH)/WCNSS_qcom_cfg.ini,$(TARGET_FW_PATH)/WCNSS_qcom_cfg.ini)
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LOCAL_ADDITIONAL_DEPENDENCIES += $(TARGET_FW_PATH)/WCNSS_qcom_cfg.ini
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$(call wlog,"generate soft link because GENERIC_ODM_IMAGE not true")
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endif
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endif
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ifeq ($(TARGET_PRODUCT), taro)
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include $(DLKM_DIR)/Build_external_kernelmodule.mk
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else
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include $(DLKM_DIR)/AndroidKernelModule.mk
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endif
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endif # Multi-ko check
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endif # DLKM check
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endif # supported target check
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endif # WLAN enabled check
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endif # ENABLE_QCACLD
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