EDK2开发环境搭建
来源 https://blog.csdn.net/rikeyone/article/details/80759724
EDK2全称为“uEFI Development Kit”，是intel开源的一套符合UEFI标准的实现。
edk2环境搭建
代码下载
git clone https://github.com/tianocore/edk2.git
安装编译环境
sudo apt-get install build-essential uuid-dev nasm
edk2编译：命令行编译
1.编译base tool
export WORKSPACE=dir/to/edk2
make -C $WORKSPACE/BaseTools
2.初始化编译环境
cd $WORKSPACE
source edksetup.sh
3.命令行编译platform pkg
build -p $WORKSPACE/EmulatorPkg/EmulatorPkg.dsc -a X64 -b DEBUG -t GCC5 -D BUILD_64 -D UNIX_SEC_BUILD -n 3
option说明：
-p PLATFORMFILE: 目标平台描述文件
-a TARGETARCH: 目标平台X64/IA32
-b BUILDTARGET: 可选项（DEBUG, RELEASE, NOOPT），将只编译dsc文件中特定的模块
-m MODULEFILE: 编译目标module
-t TOOLCHAIN : 使用目标编译器编译
-n THREADNUMBER : 多线程编译
-D MACROS: Macro格式: "Name [= Value]"，传入宏定义
edk2编译 ：配置文件编译
除了上面介绍的命令行，可以通过配置文件来编译目标，对应的配置文件目录在edk2/Conf中：
Linux@x86_64: ~/edk2 $ ls Conf/
BuildEnv.sh build_rule.txt target.txt tools_def.txt
target.txt 文件内容
# # Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR> # # SPDX-License-Identifier: BSD-2-Clause-Patent # # # ALL Paths are Relative to WORKSPACE # Separate multiple LIST entries with a SINGLE SPACE character, do not use comma characters. # Un-set an option by either commenting out the line, or not setting a value. # # PROPERTY Type Use Description # ---------------- -------- -------- ----------------------------------------------------------- # ACTIVE_PLATFORM Filename Recommended Specify the WORKSPACE relative Path and Filename # of the platform description file that will be used for the # build. This line is required if and only if the current # working directory does not contain one or more description # files. ACTIVE_PLATFORM = EmulatorPkg/EmulatorPkg.dsc # TARGET List Optional Zero or more of the following: DEBUG, RELEASE, NOOPT # UserDefined; separated by a space character. # If the line is missing or no value is specified, all # valid targets specified in the platform description file # will attempt to be built. The following line will build # DEBUG platform target. TARGET = DEBUG # TARGET_ARCH List Optional What kind of architecture is the binary being target for. # One, or more, of the following, IA32, IPF, X64, EBC, ARM # or AArch64. # Multiple values can be specified on a single line, using # space characters to separate the values. These are used # during the parsing of a platform description file, # restricting the build output target(s.) # The Build Target ARCH is determined by (precedence high to low): # Command-line: -a ARCH option # target.txt: TARGET_ARCH values # DSC file: [Defines] SUPPORTED_ARCHITECTURES tag # If not specified, then all valid architectures specified # in the platform file, for which tools are available, will be # built. TARGET_ARCH = IA32 # TOOL_DEFINITION_FILE Filename Optional Specify the name of the filename to use for specifying # the tools to use for the build. If not specified, # WORKSPACE/Conf/tools_def.txt will be used for the build. TOOL_CHAIN_CONF = Conf/tools_def.txt # TAGNAME List Optional Specify the name(s) of the tools_def.txt TagName to use. # If not specified, all applicable TagName tools will be # used for the build. The list uses space character separation. TOOL_CHAIN_TAG = VS2015x86 # MAX_CONCURRENT_THREAD_NUMBER NUMBER Optional The number of concurrent threads. If not specified or set # to zero, tool automatically detect number of processor # threads. Recommend to set this value to one less than the # number of your computer cores or CPUs. When value set to 1, # means disable multi-thread build, value set to more than 1, # means user specify the thread number to build. Not specify # the default value in this file. # MAX_CONCURRENT_THREAD_NUMBER = 1 # BUILD_RULE_CONF Filename Optional Specify the file name to use for the build rules that are followed # when generating Makefiles. If not specified, the file: # WORKSPACE/Conf/build_rule.txt will be used BUILD_RULE_CONF = Conf/build_rule.txt
1.编译base tool
export WORKSPACE=dir/to/edk2
make -C $WORKSPACE/BaseTools
2.初始化编译环境
cd $WORKSPACE
source edksetup.sh
本步骤把build命令加入的环境变量中之外，还会生成默认的Conf文件，我们需要根据自己的需要重新配置对应文件。
3.配置target.txt
ACTIVE_PLATFORM = EmulatorPkg/EmulatorPkg.dsc
TARGET = DEBUG
TARGET_ARCH = X64
TOOL_CHAIN_TAG = GCC5
MAX_CONCURRENT_THREAD_NUMBER = 9
BUILD_RULE_CONF = Conf/build_rule.txt
4.开始编译
Linux@x86_64: ~/edk2 $ build -D BUILD_64 -D UNIX_SEC_BUILD
通过配置文件的方式，大大简化了命令行的输入，如果命令行传入了相同的配置参数，则会覆盖配置文件target.txt中的定义。
edk2编译清除：
清除BaseTool
Linux@x86_64: ~/edk2 $ make -C BaseTools clean
清除目标板编译文件
build clean
build cleanall
Emulator模拟器运行
EmulatorPkg/build.sh run
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