鸿蒙系统移植操作步骤指引---树莓派交叉编译工具链配置篇（配置出错修改中） - HarmonyOS技术社区 - 电子技术论坛

2020-11-13 11:30:04

交叉编译

很多朋友对移植鸿蒙存在不少疑惑，其中对交叉编译工具链的配置也完全不清楚。现在我们来一步步完成树莓派3上鸿蒙系统的交叉编译工具链配置操作。
首先，我们在命令行中输入

python build.py rpi3

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结果肯定是失败的，我们来看看提示。如下图所示，提示的内容是找不到 build/lite/product/rpi3.json 这个文件。这么说来，编译脚本第一步就是先定位这个 product 文件夹里的设置内容，然后根据该文件的设置布置编译任务。

那我们配置的第一步，就是新建这个文件了

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1、新建build/lite/product/rpi3.json ，并复制3518的内容
我们在这个文件夹新建 build/lite/product/rpi3.json 文件，并输入以下内容。

{
"ohos_version": "OpenHarmony 1.0",
"board": "rpi3",
"kernel": "liteos_a",
"compiler": "arm-none-eabi-gcc",
"subsystem": [
{
"name": "hiviewdfx",
"component": [
{ "name": "hilog_lite", "dir": "//base/hiviewdfx/frameworks/hilog_lite/featured:hilog_static", "features":[] },
{ "name": "hilog_lite", "dir": "//base/hiviewdfx/frameworks/hilog_lite/featured:hilog_shared", "features":[] }
]
},
{
"name": "distributedschedule",
"component": [
{ "name": "samgr_lite", "dir": "//foundation/distributedschedule/services/samgr_lite:samgr", "features":[] },
{ "name": "safwk_lite", "dir": "//foundation/distributedschedule/services/safwk_lite:safwk_lite", "features":[] },
{ "name": "dtbschedmgr_lite", "dir": "//foundation/distributedschedule/services/dtbschedmgr_lite:dtbschedmgr", "features":[] }
]
},
{
"name": "security",
"component": [
{ "name": "hichainsdk_lite", "dir": "//base/security/frameworks/hichainsdk_lite:hichainsdk", "features":[] },
{ "name": "iam_lite", "dir": "//base/security/services/iam_lite:pms_lite", "features":[] },
{ "name": "app_verify", "dir": "//base/security/frameworks/app_verify:verify", "features":[] }
]
},
{
"name": "multimedia",
"component": [
{ "name": "media_lite", "dir": "//foundation/multimedia/services/media_lite:media_lite", "features":[] }
]
},
{
"name": "startup",
"component": [
{ "name": "bootstrap_lite", "dir": "//base/startup/services/bootstrap_lite/source:bootstrap", "features":[] },
{ "name": "parameter", "dir": "//base/startup/frameworks/syspara_lite/parameter:parameter", "features":[] },
{ "name": "token", "dir": "//base/startup/frameworks/syspara_lite/token:token", "features":[] },
{ "name": "init_lite", "dir": "//base/startup/services/init_lite:init_lite", "features":[] },
{ "name": "appspawn_lite", "dir": "//base/startup/services/appspawn_lite:appspawn_lite", "features":[] }
]
},
{
"name": "kernel",
"component": [
{ "name": "liteos_a", "dir": "//kernel/liteos_a:kernel", "features":[] }
]
},
{
"name": "communication",
"component": [
{ "name": "ipc_lite", "dir": "//foundation/communication/frameworks/ipc_lite:liteipc", "features":[] },
{ "name": "softbus_lite", "dir": "//foundation/communication/services/softbus_lite:softbus", "features":[] },
{ "name": "wpa_supplicant", "dir": "//third_party/wpa_supplicant/wpa_supplicant-2.9:wpa_supplicant", "features":[] }
]
},
{
"name": "hdf",
"component": [
{ "name": "posix", "dir": "//drivers/hdf/lite/posix:hdf_posix", "features":[] },
{ "name": "manager", "dir": "//drivers/hdf/lite/manager:hdf_manager", "features":[] },
{ "name": "wifi", "dir": "//vendor/huawei/hdf/wifi:wifi_firmware", "features":[] },
{ "name": "display", "dir": "//vendor/huawei/hdf/display/hdi:hdi_display", "features":[] },
{ "name": "input", "dir": "//vendor/huawei/hdf/input/hdi:hdi_input", "features":[] }
]
},
{
"name": "appexecfwk",
"component": [
{ "name": "bundle_lite", "dir": "//foundation/appexecfwk/frameworks/bundle_lite:appexecfwk_kits_lite", "features":[] },
{ "name": "bundlemgr_lite", "dir": "//foundation/appexecfwk/services/bundlemgr_lite:appexecfwk_services_lite", "features":[] }
]
},
{
"name": "utils",
"component": [
{ "name": "kv_store", "dir": "//utils/native/lite/kv_store:kv_store", "features":[] }
]
},
{
"name": "vendor",
"component": [
{ "name": "middleware", "dir": "//vendor/hisi/hi35xx/middleware:middleware_source_sdk", "features":[] },
{ "name": "hardware", "dir": "//vendor/hisi/hi35xx/hardware:hardware_media_sdk", "features":[] }
]
},
{
"name": "test",
"component": [
{ "name": "xts_act", "dir": "//test/xts/acts", "features":[] },
{ "name": "xts_tools", "dir": "//test/xts/tools", "features":[] },
{ "name": "test", "dir": "//test/developertest:test", "features":[] }
]
}
],
"vendor_adapter_dir": "//vendor/hisi/hi35xx/hi3518ev300/hi3518ev300_adapter",
"third_party_dir": "//third_party",
"ohos_product_type":"",
"ohos_manufacture":"",
"ohos_brand":"",
"ohos_market_name":"",
"ohos_product_series":"",
"ohos_product_model":"",
"ohos_software_model":"",
"ohos_hardware_model":"",
"ohos_hardware_profile":"",
"ohos_serial":"",
"ohos_bootloader_version":"",
"ohos_secure_patch_level":"",
"ohos_abi_list":""
}

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说明：板子设定为rpi3，编译器设定为 arm-none-eabi-gcc，并删掉一些组件
=========
接下来，我们再运行一下编译命令（python build.py rpi3 ）。我们填写了一个不在原系统里支持的编译器，运行命令也是会出错的。果然，提示不支持这个编译器。

好的，那第二步的工作就确定了
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2、编写 arm-none-eabi-gcc 配置文件我们先用VScode搜索一下 Error: Unsupport compiler 这个错误。然后定位到 build/lite/config.py 这个文件的124行附件。将内容修改为以下内容。

if compiler == "clang":
compiler_bin = "clang"
elif compiler == "arm-none-eabi-gcc":
compiler_bin = "arm-none-eabi-gcc"
elif compiler == "gcc":
compiler_bin = "riscv32-unknown-elf-gcc"
else:

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新增了编译器设置为 arm-none-eabi-gcc 的判断和执行部分
=======
然后我们再次运行编译命令，又出现了一个新错误提示，如下图。

好的，这次我们在VScode中搜索 not OHOS compiler ，同样是在 build/lite/config.py 这个文件的 160行附近找到了对应判断语句。
我们来将对应内容修改为

if compiler == 'gcc' or compiler == 'arm-none-eabi-gcc':
return True

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======
然后我们再次运行编译命令，又出现了一个新错误提示，如下图。

好的，根据提示缺少的文件，我们新建 build/lite/config/boards/rpi3.gni 文件，并添加以下内容。

# Copyright (c) 2020 Huawei Device Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
board_arch = "armv7-a"
board_cpu = "cortex-a7"

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=======
然后我们再次运行编译命令，又出现了一个新错误提示，如下图。

然后继续新建缺少的文件 build/lite/toolchain/arm-none-eabi-gcc.gni ，添加以下内容

# Copyright (c) 2020 Huawei Device Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
ohos_build_compiler_so_strip = "arm-none-eabi-objcopy --strip-all"
ohos_build_compiler_bin_strip = "arm-none-eabi-objcopy --strip-all"
template("arm_none_eabi_gcc_toolchain") {
toolchain(target_name) {
assert(defined(invoker.cc), "clang toolchain must specify a "cc" value")
assert(defined(invoker.cxx), "clang toolchain must specify a "cxx" value")
assert(defined(invoker.ar), "clang toolchain must specify a "ar" value")
assert(defined(invoker.as), "clang toolchain must specify a "as" value")
assert(defined(invoker.ld), "clang toolchain must specify a "ld" value")
cc = invoker.cc
cxx = invoker.cxx
ar = invoker.ar
as = invoker.as
ld = invoker.ld
need_strip = false
if(defined(invoker.strip)) {
strip = invoker.strip
need_strip = true
}
tool("cc") {
command = "$cc {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
description = "arm-none-eabi-gcc {{output}}"
outputs = [
"{{source_out_dir}}/{{source_name_part}}.o",
]
}
tool("cxx") {
depfile = "{{output}}.d"
command = "$cxx {{defines}} {{include_dirs}} {{cflags_cc}} -c {{source}} -o {{output}}"
description = "arm-none-eabi-g++ {{output}}"
outputs = [
"{{source_out_dir}}/{{source_name_part}}.o",
]
}
tool("asm") {
depfile = "{{output}}.d"
command = "$as {{include_dirs}} {{asmflags}} -c {{source}} -o {{output}}"
description = "arm-none-eabi-as {{output}}"
outputs = [
"{{source_out_dir}}/{{source_name_part}}.o",
]
}
tool("alink") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
rspfile = "{{output}}.rsp"
rspfile_content = "{{inputs}}"
command = "$ar -cr {{output}} @"$rspfile""
description = "arm-none-eabi-ar {{output}}"
outputs = [
outfile,
]
default_output_dir = "{{root_out_dir}}/libs"
default_output_extension = ".a"
output_prefix = "lib"
}
tool("solink") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
rspfile = "$outfile.rsp"
rspfile_content = "{{inputs}}"
command = "$ld -shared {{ldflags}} {{inputs}} -o $outfile"
if (need_strip) {
unstripped_outfile = outfile
command += " && $strip" + " "$unstripped_outfile" "$outfile""
}
default_output_extension = ".so"
description = "SOLINK $outfile"
default_output_dir = "{{root_out_dir}}"
output_prefix = "lib"
outputs = [
outfile
]
}
tool("link") {
outfile = "{{output_dir}}/bin/{{target_output_name}}{{output_extension}}"
rspfile = "$outfile.rsp"
custom_ld_flags = " "
command = "$cc {{ldflags}} {{inputs}} $custom_ld_flags -o $outfile"
if (need_strip) {
command += " && $strip $outfile"
}
description = "GCC LINK $outfile"
default_output_dir = "{{root_out_dir}}"
rspfile_content = "{{inputs}}"
outputs = [
outfile
]
}
tool("stamp") {
if (host_os == "win") {
command = "cmd /c type nul > "{{output}}""
} else {
command = "/usr/bin/touch {{output}}"
}
description = "STAMP {{output}}"
}
tool("copy") {
command = "cp -afd {{source}} {{output}}"
description = "COPY {{source}} {{output}}"
}
}
}