查看CPU结构

查看.a的CPU架构

lipo -info  xx.a

查看.framework的CPU架构

1、cd到xx.framework的目录下面
2、lipo -info xx 

指令集对应的机型

2018 A12芯片arm64e ： iPhone XS、 iPhone XS Max、 iPhoneXR
2017 A11芯片arm64： iPhone 8, iPhone 8 Plus, and iPhone X
2016 A10芯片arm64：iPhone 7 , 7 Plus, iPad (2018)
2015 A9芯片arm64： iPhone 6S , 6S Plus
2014 A8芯片arm64： iPhone 6 , iPhone 6 Plus
2013 A7芯片arm64： iPhone 5S
armv7s：iPhone5｜iPhone5C｜iPad4(iPad with Retina Display)
armv7：iPhone4｜iPhone4S｜iPad｜iPad2｜iPad3(The New iPad)｜iPad mini｜iPod Touch 3G｜iPod Touch4

模拟器32位 i386架构，
模拟器64位 x86_64架构，
真机32位 armv7 armv7s架构，
真机64位处理器需要arm64 arm64e架构。

.a库文件

编写自己的.a库的时候一般是需要支持（这样真机和模拟器都能使用）

armv7  arm64 i386 x86_64

如果全一点的话也可以包括armv7s、arm64e

armv7 armv7s  arm64 arm64e i386 x86_64

每增加一种架构库的大小就会多一倍。

查看Architectures

使用标准架构(Standard architectures) 81CC564AE6BCA0898E7E18DB3C02E6E9.png 模拟器中会生成：i386 x86_64

只会包含2种架构：armv7 arm64

如果真机需要4种都有的话需要手动填写，在Architectures中加入armv7、armv7s、arm64、arm64e ,注意这种模式下模拟器编译不了的（模拟器需要使用Standard architectures）。

具体如下图 2381CD52F917CDBD8B3B50313CBA3B88.png

合并模拟和真机的.a文件

• 手动合并

lipo -create "模拟器xx.a" "真机xx.a" -output "xx.a"
lipo -create "xx.a" "xx.a" -output "xx.a"

• 脚本合并
  

  在.a库的工程中添加一个Aggegate目标文件 4D6F1318-EE0F-49A2-8248-004E020EA220.png
  在build Phases 添加Run Script项
  

  然后加入脚本

if [ "${ACTION}" = "build" ]
then

#要build的target名
target_Name=${PROJECT_NAME}
    echo "target_Name=${target_Name}"

#build之后的文件夹路径
build_DIR=${SRCROOT}/build
echo "build_DIR=${build_DIR}"

#真机build生成的头文件的文件夹路径
DEVICE_DIR_INCLUDE=${build_DIR}/Release-iphoneos/include/${PROJECT_NAME}
    echo "DEVICE_DIR_INCLUDE=${DEVICE_DIR_INCLUDE}"

#真机build生成的.a文件路径
DEVICE_DIR_A=${build_DIR}/Release-iphoneos/lib${PROJECT_NAME}.a
    echo "DEVICE_DIR_A=${DEVICE_DIR_A}"

#模拟器build生成的.a文件路径
SIMULATOR_DIR_A=${build_DIR}/Release-iphonesimulator/lib${PROJECT_NAME}.a
    echo "SIMULATOR_DIR_A=${SIMULATOR_DIR_A}"

#目标文件夹路径
INSTALL_DIR=${SRCROOT}/Products/${PROJECT_NAME}
    echo "INSTALL_DIR=${INSTALL_DIR}"

#目标头文件文件夹路径
INSTALL_DIR_Headers=${SRCROOT}/Products/${PROJECT_NAME}/Headers
    echo "INSTALL_DIR_Headers=${INSTALL_DIR_Headers}"

#目标.a路径
INSTALL_DIR_A=${SRCROOT}/Products/${PROJECT_NAME}/lib${PROJECT_NAME}.a
    echo "INSTALL_DIR_A=${INSTALL_DIR_A}"

#判断build文件夹是否存在，存在则删除
if [ -d "${build_DIR}" ]
then
rm -rf "${build_DIR}"
fi

#判断目标文件夹是否存在，存在则删除该文件夹
if [ -d "${INSTALL_DIR}" ]
then
rm -rf "${INSTALL_DIR}"
fi
#创建目标文件夹
mkdir -p "${INSTALL_DIR}"

#build之前clean一下
xcodebuild -target ${target_Name} clean

#模拟器build
xcodebuild -target ${target_Name} -configuration Release -sdk iphonesimulator

#真机build
xcodebuild -target ${target_Name} -configuration Release -sdk iphoneos

#复制头文件到目标文件夹
cp -R "${DEVICE_DIR_INCLUDE}" "${INSTALL_DIR_Headers}"

#合成模拟器和真机.a包
lipo -create "${DEVICE_DIR_A}" "${SIMULATOR_DIR_A}" -output "${INSTALL_DIR_A}"

#打开目标文件夹
open "${INSTALL_DIR}"

fi

使用默认设置会生成支持4中架构的.a静态库文件（armv7 arm64 i386 x86_64）
具体怎么使用Aggegate可以查看
地址

.framework库

如同.a库一样使用脚本生成支持4种架构的库

脚本如下

# Sets the target folders and the final framework product.
FRAMEWORK_NAME=${PROJECT_NAME}
FRAMEWORK_CONFIG=Release

# Install dir will be the final output to the framework.
# The following line create it in the root folder of the current project.
INSTALL_DIR=${PROJECT_DIR}/Products/${FRAMEWORK_NAME}.framework

# Working dir will be deleted after the framework creation.
WORK_DIR=build
DEVICE_DIR=${WORK_DIR}/${FRAMEWORK_CONFIG}-iphoneos/${FRAMEWORK_NAME}.framework
SIMULATOR_DIR=${WORK_DIR}/${FRAMEWORK_CONFIG}-iphonesimulator/${FRAMEWORK_NAME}.framework

xcodebuild -configuration "${FRAMEWORK_CONFIG}" -target "${FRAMEWORK_NAME}" -sdk iphoneos

echo "Build simulator"
xcodebuild -configuration "${FRAMEWORK_CONFIG}" -target "${FRAMEWORK_NAME}" -sdk iphonesimulator

# Creates install directory if it not exits.
if [ ! -d "${INSTALL_DIR}" ]
then
mkdir -p "${INSTALL_DIR}"
fi

# Creates headers directory if it not exits.
if [ ! -d "${INSTALL_DIR}/Headers" ]
then
mkdir -p "${INSTALL_DIR}/Headers"
fi

# Remove all files in the headers diectory.
for file in `ls "${INSTALL_DIR}/Headers"`
do
rm "${INSTALL_DIR}/Headers/${file}"
done

# Remove binary library file.
rm -f ${INSTALL_DIR}/${FRAMEWORK_NAME}

# Copies the headers files to the final product folder.
if [ -d "${DEVICE_DIR}/Headers" ]
then
for file in `ls "${DEVICE_DIR}/Headers"`
do
cp "${DEVICE_DIR}/Headers/${file}" "${INSTALL_DIR}/Headers/${file}"
done
fi

# copy nibs to bundle,then copy bundle to final folder
BUNDLE_DIR=${DEVICE_DIR}/${FRAMEWORK_NAME}.bundle

if [ -d "${BUNDLE_DIR}" ];then
if ls ${DEVICE_DIR}/*.nib >/dev/null 2>&1;then
rm -rf ${BUNDLE_DIR}/*.nib
cp -rf ${DEVICE_DIR}/*.nib ${BUNDLE_DIR}
fi
rm -rf "${INSTALL_DIR}/${FRAMEWORK_NAME}.bundle"
cp -R "${BUNDLE_DIR}" "${INSTALL_DIR}/${FRAMEWORK_NAME}.bundle"
fi

echo "Merge with simulator"
# Uses the Lipo Tool to merge both binary files (i386 + armv6/armv7) into one Universal final product.
lipo -create "${DEVICE_DIR}/${FRAMEWORK_NAME}" "${SIMULATOR_DIR}/${FRAMEWORK_NAME}" -output "${INSTALL_DIR}/${FRAMEWORK_NAME}"

rm -r "${WORK_DIR}"