使用
Swiftc的Xcode 8.3 beta版本,您如何生成Arm7或Arm64二进制文件?
我已经尝试了这个明显的参数-target-cpu arm64,它给了我一个链接器消息< unknown>:0:warning:参数在编译期间未使用:’-mcpu = arm64′
ld:库找不到-lobjc,它会提前尝试构建一个x64目标.
实际指令:
- swiftc -sdk /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/ -L /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib -F /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/ -swift-version 3 -target-cpu arm64 somefile.swift
您可以使用sdk和target选项来执行此操作.这是一个例子:
- /Projects/Test $cat main.swift
- print("Hello world!");
编译x86_64
- /Projects/Test $swiftc main.swift
- /Projects/Test $lipo -info main
- Non-fat file: main is architecture: x86_64
- /Projects/Test $./main
- Hello world!
编译armv7
- /Projects/Test $swiftc main.swift -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.2.sdk -target armv7-apple-ios8.1
- /Projects/Test $lipo -info main
- Non-fat file: main is architecture: armv7
编译arm64
- /Projects/Test $swiftc main.swift -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.2.sdk -target arm64-apple-ios8.1
- /Projects/Test $lipo -info main
- Non-fat file: main is architecture: arm64
我写了一个脚本build.sh,使其更容易使用:
- #!/bin/sh
- TARGET_MAC_VERSION=10.11
- TARGET_IOS_VERSION=8.1
- if [ "$#" -ne 2 ]; then
- echo "Usage $0: <armv7/arm64/x86_64> <file>"
- exit
- fi
- if [ "$1" != 'armv7' ] && [ "$1" != 'arm64' ] && [ "$1" != 'x86_64' ]; then
- echo "Usage $0: <armv7/arm64/x86_64>"
- exit
- fi
- if [ "$1" == 'x86_64' ]; then
- SDK=macosx
- TARGET="x86_64-macosx$TARGET_MAC_VERSION"
- else
- SDK=iphoneos
- TARGET="$1-apple-ios$TARGET_IOS_VERSION"
- fi
- echo "xcrun -sdk $SDK swiftc $2 -target $TARGET"
- xcrun -sdk $SDK swiftc $2 -target $TARGET
产量
- $./build.sh armv7 main.swift
- xcrun -sdk iphoneos swiftc main.swift -target armv7-apple-ios8.1
- $lipo -info main
- Non-fat file: main is architecture: armv7
- $./build.sh arm64 main.swift
- xcrun -sdk iphoneos swiftc main.swift -target arm64-apple-ios8.1
- $lipo -info main
- Non-fat file: main is architecture: arm64
- $./build.sh x86_64 main.swift
- xcrun -sdk macosx swiftc main.swift -target x86_64-macosx10.11
- $lipo -info main
- Non-fat file: main is architecture: x86_64
编辑注意:根据@jens的输入优化脚本.有关更多信息,请参阅评论.