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45 lines
1.9 KiB
Plaintext
45 lines
1.9 KiB
Plaintext
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Go on iOS
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=========
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To build a cross compiling toolchain for iOS on OS X, first modify clangwrap.sh
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in misc/ios to match your setup. And then run:
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GOARM=7 CGO_ENABLED=1 GOARCH=arm CC_FOR_TARGET=`pwd`/../misc/ios/clangwrap.sh \
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CXX_FOR_TARGET=`pwd`/../misc/ios/clangwrap.sh ./make.bash
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To build a program, use the normal go build command:
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CGO_ENABLED=1 GOARCH=arm go build import/path
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To run a program on an iDevice, first make sure you have a valid developer
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certificate and have setup your iDevice properly to run apps signed by your
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developer certificate. Then install https://github.com/phonegap/ios-deploy.
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At a first step, you can try building the famous hello world program to run
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on your test device.
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(The needed files are provided at https://github.com/minux/go-ios-examples.)
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# assume your program binary is helloworld.go, build it into the
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# example hello.app bundle.
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CGO_ENABLED=1 GOARCH=arm go build -o hello.app/hello helloworld.go
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# sign the executable using your developer certificate
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codesign -f -s "iPhone Developer" --entitlements hello.app/Entitlements.plist hello.app/hello
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# run the program inside lldb on iDevice, run `ios-deploy` for more
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# command options
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ios-deploy --debug --uninstall --bundle hello.app
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# Depending on your ios-deploy version, you might need to enter "run"
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# into lldb to run your program, and its output will be shown by lldb.
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Notes:
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- A dummy hello.app bundle is provided in this directory to help you get started.
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- Running the program on an iDevice requires code sign and thus external linking,
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if your program uses cgo, then it will automatically use external linking.
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However, if your program does not use cgo, please make sure to add
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import _ "runtime/cgo"
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so that external linking will be used.
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Known issues
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============
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- crypto/x509 won't build, I don't yet know how to get system root on iOS.
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- Because I still want to be able to do native build, CGO_ENABLED=1 is not the
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default, yet.
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