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README_IOS.md

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iOS

Setup

Install XCode

  • Install from AppStore (if not already installed)
  • Start XCode
  • When asked, enable “Developer mode” on your mac
  • In Preferences -> Accounts ** Add a new account, use your Apple ID ** You should now see the account and that its team membership
  • You also need to set up a Provisioning Profile. This is done in Xcode->Preferences->Accounts. Double-click and a window should appear with IDs in the top half and Provisioning Profiles in the bottom half. Select the profile you want (e.g. "iOS Team Provision Profile: *"). Use the downloaded profile when deploying to an iOS device.

After installation of XCode (and each update!) you need to create a symbolic link to iOS sdk:

$ sudo ln -s /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk

iOS Debugging

Setup XCode project

  • Make sure that you build with --disable-ccache. Otherwise lldb can't set breakpoints (all pending). The reason is currently unknown. The --disable-ccache option is available in waf and in build.py.
  • Create a new empty iOS project (Other/Empty)
  • Create a new scheme with Product -> Scheme -> New Scheme...
  • Select executable (dmengine.app)
  • Make sure that debugger is lldb. Otherwise debuginfo is not found for static libraries when compiled with clang for unknown reason

See also: Attaching to Process

ios-deploy

Good tool for iOS deployment / debugging (lldb): ios-deploy

$ ios-deploy --bundle test.ipa

or

$ ios-deploy --debug --bundle test.app

QuickLook plugin for .ipa and .mobileprovision

It's often required to peek inside the permissions of a package or mobile provisioning file. For this you can install ProvisionQL

    $ brew cask install provisionql

iOS Crashdumps

From: http://stackoverflow.com/a/13576028

symbol address = slide + stack address - load address

  • The slide value is the value of vmaddr in LC_SEGMENT cmd (Mostly this is 0x1000). Run the following to get it:

    $ otool -arch ARCHITECTURE -l "APP_BUNDLE/APP_EXECUTABLE" | grep -B 3 -A 8 -m 2 "__TEXT"

    Replace ARCHITECTURE with the actual architecture the crash report shows, e.g. armv7. Replace APP_BUNDLE/APP_EXECUTABLE with the path to the actual executable.

  • The stack address is the hex value from the crash report.

  • The load address can be is the first address showing in the Binary Images section at the very front of the line which contains your executable. (Usually the first entry).

Update SDK

Both iPhoneOS + macOS SDK's use the same steps to update.

Check what's been updated

To make sure you know what's been changed, you can check this page: https://developer.apple.com/library/content/releasenotes/General/WhatsNewIniOS/Introduction/Introduction.html#//apple_ref/doc

From XCode 9.+ and onwards, you'll see the added/modified/deprecated items here: https://developer.apple.com/documentation?changes=latest_major

Download latest stable XCode

https://developer.apple.com/download/more/

Package SDK (iPhone, iPhone Simulator, MacOS, Xcode toolchain)

See the script under scripts/package

How to test locally on the engine build:

$ tar -xvf iPhoneOS11.2.sdk.tar.gz -C $DYNAMO_HOME/ext/SDKs
$ tar -xvf XcodeToolchain9.2.sdk.tar.gz -C $DYNAMO_HOME/ext/SDKs
$ tar -xvf MacOSX10.12.sdk.tar.gz -C $DYNAMO_HOME/ext/SDKs

Build.py

Update the sdk version(s). In install_ext, update the commands if needed.

waf_dynamo.py

Update the sdk version(s) at the top of the file

Native Extension

Dockerfile

Open extender/server/docker-base/Dockerfile

Make sure you unpack the package with the correct version number! Here, the package is downloaded and extracted to 'iPhoneOSXxx.sdk', making sure that the contained library has a version number!

NOTE: If it doesn't have a version number, it will bug out in subtle ways (E.g. the device orientation events won't fire properly)

RUN \
  wget -q -O - ${DM_PACKAGES_URL}/iPhoneOS11.2.sdk.tar.gz | tar xz -C /opt

Defold SDK (build.yml)

Also, you should update the list of allowedLibs in the defold/share/extender/build.yml for both iOS and OSX. The easiest way to do that is to use the defold/share/extender/find_libs_apple.sh (after running ./scripts/build.py install_ext to download the packages to $DYNAMO_HOME)