From b71f5cfe2ca88848e32b5d45bb3ad65b8a194b2b Mon Sep 17 00:00:00 2001
From: Zachery Wu <wuzuoyu@huawei.com>
Date: Fri, 30 Jul 2021 20:48:16 +0800
Subject: [PATCH] fix kernel.mk bug

Signed-off-by: Zachery Wu <wuzuoyu@huawei.com>
---
 kernel.mk | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 kernel.mk

diff --git a/kernel.mk b/kernel.mk
new file mode 100644
index 0000000..e298289
--- /dev/null
+++ b/kernel.mk
@@ -0,0 +1,85 @@
+# Copyright (c) 2021 Huawei Device Co., Ltd.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# 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 for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# ohos makefile to build kernel
+PRODUCT_NAME=$(TARGET_PRODUCT)
+OHOS_BUILD_HOME := $(realpath $(shell pwd)/../../../)
+KERNEL_SRC_TMP_PATH := $(OUT_DIR)/kernel/linux-4.19
+ifeq ($(PRODUCT_NAME), Hi3516DV300)
+    OHOS_BUILD_HOME := $(OHOS_ROOT_PATH)
+    BOOT_IMAGE_PATH = $(OHOS_BUILD_HOME)/device/hisilicon/hispark_taurus/prebuilts
+    KERNEL_SRC_TMP_PATH := $(OUT_DIR)/kernel/src_tmp/linux-4.19
+endif
+
+KERNEL_SRC_PATH := $(OHOS_BUILD_HOME)/kernel/linux-4.19
+KERNEL_PATCH_PATH := $(OHOS_BUILD_HOME)/kernel/linux/patches/linux-4.19
+KERNEL_CONFIG_PATH := $(OHOS_BUILD_HOME)/kernel/linux/config/linux-4.19
+PREBUILTS_GCC_DIR := $(OHOS_BUILD_HOME)/prebuilts/gcc
+PREBUILTS_CLANG_DIR := $(OHOS_BUILD_HOME)/prebuilts/clang
+CLANG_HOST_TOOLCHAIN := $(PREBUILTS_CLANG_DIR)/host/linux-x86/clang-r353983c/bin
+KERNEL_HOSTCC := $(CLANG_HOST_TOOLCHAIN)/clang
+KERNEL_PREBUILT_MAKE := make
+
+ifeq ($(PRODUCT_NAME), Hi3516DV300)
+    KERNEL_ARCH := arm
+    KERNEL_TARGET_TOOLCHAIN := $(PREBUILTS_GCC_DIR)/linux-x86/arm/gcc-linaro-7.5.0-arm-linux-gnueabi/bin
+    KERNEL_TARGET_TOOLCHAIN_PREFIX := $(KERNEL_TARGET_TOOLCHAIN)/arm-linux-gnueabi-
+    CLANG_CC := $(CLANG_HOST_TOOLCHAIN)/clang
+else ifeq ($(PRODUCT_NAME), hi3516dv300)
+    KERNEL_ARCH := arm
+    ifeq ($(CLANG_CC), "")
+        CLANG_CC := $(OHOS_BUILD_HOME)/prebuilts/clang/ohos/linux-x86_64/clang-10.0.1/bin/clang
+    endif
+endif
+
+KERNEL_PERL := /usr/bin/perl
+
+KERNEL_CROSS_COMPILE :=
+KERNEL_CROSS_COMPILE += CC="$(CLANG_CC)"
+ifeq ($(PRODUCT_NAME), Hi3516DV300)
+    KERNEL_CROSS_COMPILE += HOSTCC="$(KERNEL_HOSTCC)"
+    KERNEL_CROSS_COMPILE += PERL=$(KERNEL_PERL)
+    KERNEL_CROSS_COMPILE += CROSS_COMPILE="$(KERNEL_TARGET_TOOLCHAIN_PREFIX)"
+else ifeq ($(PRODUCT_NAME), hi3516dv300)
+    KERNEL_CROSS_COMPILE += CROSS_COMPILE="arm-linux-gnueabi-"
+endif
+
+KERNEL_MAKE := \
+    PATH="$(BOOT_IMAGE_PATH):$$PATH" \
+    $(KERNEL_PREBUILT_MAKE)
+
+
+ifneq ($(findstring $(PRODUCT_NAME), hi3516dv300 Hi3516DV300),)
+HI3516DV300_PATCH_DIR := $(OHOS_BUILD_HOME)/kernel/linux/patches/linux-4.19/hi3516dv300_small_patch
+HI3516DV300_PATCH_FILE := $(HI3516DV300_PATCH_DIR)/hi3516dv300_small.patch
+HDF_PATCH_FILE := $(HI3516DV300_PATCH_DIR)/hdf.patch
+KERNEL_IMAGE_FILE := $(KERNEL_SRC_TMP_PATH)/arch/arm/boot/uImage
+ifeq ($(PRODUCT_NAME), hi3516dv300)
+DEFCONFIG_FILE := hi3516dv300_small_defconfig
+else
+DEFCONFIG_FILE := hi3516dv300_standard_defconfig
+endif
+export HDF_PROJECT_ROOT=$(OHOS_BUILD_HOME)/
+
+$(KERNEL_IMAGE_FILE):
+	$(hide) echo "build kernel..."
+	$(hide) rm -rf $(KERNEL_SRC_TMP_PATH);mkdir -p $(KERNEL_SRC_TMP_PATH);cp -arfL $(KERNEL_SRC_PATH)/* $(KERNEL_SRC_TMP_PATH)/
+	$(hide) cd $(KERNEL_SRC_TMP_PATH) && patch -p1 < $(HDF_PATCH_FILE) && patch -p1 < $(HI3516DV300_PATCH_FILE)
+	$(hide) cp -rf $(KERNEL_CONFIG_PATH)/. $(KERNEL_SRC_TMP_PATH)/
+	$(hide) $(KERNEL_MAKE) -C $(KERNEL_SRC_TMP_PATH) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) distclean
+	$(hide) $(KERNEL_MAKE) -C $(KERNEL_SRC_TMP_PATH) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(DEFCONFIG_FILE)
+	$(hide) $(KERNEL_MAKE) -C $(KERNEL_SRC_TMP_PATH) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) -j64 uImage
+endif
+.PHONY: build-kernel
+build-kernel: $(KERNEL_IMAGE_FILE)
-- 
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