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101 lines
3.7 KiB
101 lines
3.7 KiB
9 years ago
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# Prerequisites
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* a Linux/Mac workstation
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* v8 r12178 (on Google Code) or later
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* an Android emulator or device with matching USB cable
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* make sure [building with GYP](http://code.google.com/p/v8-wiki/wiki/BuildingWithGYP) works
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# Get the code
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* Use the instructions from https://code.google.com/p/v8-wiki/wiki/UsingGit to get the code
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* Once you need to add the android dependencies:
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```
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v8$ echo "target_os = ['android']" >> ../.gclient && gclient sync --nohooks
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```
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* The sync will take a while the first time as it downloads the Android NDK to v8/third\_party
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* If you want to use a different NDK, you need to set the gyp variable android\_ndk\_root
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# Get the Android SDK
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* tested version: `r15`
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* download the SDK from http://developer.android.com/sdk/index.html
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* extract it
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* install the "Platform tools" using the SDK manager that you can start by running `tools/android`
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* now you have a `platform_tools/adb` binary which will be used later; put it in your `PATH` or remember where it is
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# Set up your device
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* Enable USB debugging (Gingerbread: Settings > Applications > Development > USB debugging; Ice Cream Sandwich: Settings > Developer Options > USB debugging)
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* connect your device to your workstation
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* make sure `adb devices` shows it; you may have to edit `udev` rules to give yourself proper permissions
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* run `adb shell` to get an ssh-like shell on the device. In that shell, do:
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```
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cd /data/local/tmp
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mkdir v8
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cd v8
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```
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# Push stuff onto the device
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* make sure your device is connected
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* from your workstation's shell:
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```
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adb push /file/you/want/to/push /data/local/tmp/v8/
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```
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# Compile V8 for Android
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Currently two architectures (`android_arm` and `android_ia32`) are supported, each in `debug` or `release` mode. The following steps work equally well for both ARM and ia32, on either the emulator or real devices.
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* compile:
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```
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make android_arm.release -j16
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```
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* push the resulting binary to the device:
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```
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adb push out/android_arm.release/d8 /data/local/tmp/v8/d8
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```
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* the most comfortable way to run it is from your workstation's shell as a one-off command (rather than starting an interactive shell session on the device), that way you can use pipes or whatever to process the output as necessary:
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```
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adb shell /data/local/tmp/v8/d8 <parameters>
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```
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* warning: when you cancel such an "adb shell whatever" command using Ctrl+C, the process on the phone will sometimes keep running.
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* Alternatively, use the `.check` suffix to automatically push test binaries and test cases onto the device and run them.
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```
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make android_arm.release.check
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```
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# Profile
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* compile a binary, push it to the device, keep a copy of it on the host
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```
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make android_arm.release -j16
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adb push out/android_arm.release/d8 /data/local/tmp/v8/d8-version.under.test
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cp out/android_arm.release/d8 ./d8-version.under.test
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```
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* get a profiling log and copy it to the host:
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```
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adb shell /data/local/tmp/v8/d8-version.under.test benchmark.js --prof
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adb pull /data/local/tmp/v8/v8.log ./
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```
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* open `v8.log` in your favorite editor and edit the first line to match the full path of the `d8-version.under.test` binary on your workstation (instead of the `/data/local/tmp/v8/` path it had on the device)
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* run the tick processor with the host's `d8` and an appropriate `nm` binary:
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```
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cp out/ia32.release/d8 ./d8 # only required once
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tools/linux-tick-processor --nm=$ANDROID_NDK_ROOT/toolchain/bin/arm-linux-androideabi-nm
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```
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# Compile SpiderMonkey for Lollipop
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```
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cd firefox/js/src
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autoconf2.13
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./configure \
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--target=arm-linux-androideabi \
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--with-android-ndk=$ANDROID_NDK_ROOT \
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--with-android-version=21 \
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--without-intl-api \
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--disable-tests \
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--enable-android-libstdcxx \
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--enable-pie
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make
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adb push -p js/src/shell/js /data/local/tmp/js
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```
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