1 This file explains how to set up and run the various kinds of bisection tests. 2 3 The bisection tool comes with several sets of tests which you should 4 run after updating any of the bisection tool scripts OR after updating 5 the Android compiler wrapper (to make sure the wrapper will still work 6 correctly with bisection). 7 8 Before you start. 9 ---------------- 10 11 Before you can run the tests, your PYTHONPATH environment variable 12 must be correct. This means that it must include both the 13 toolchain-utils directory and the binary_search_tool directory. The 14 easiest way to set it is: 15 16 $ cd toolchain-utils 17 $ export PYTHONPATH=`pwd`:${PYTHONPATH} 18 $ cd binary_search_tool 19 $ export PYTHONPATH=`pwd`:${PYTHONPATH} 20 21 22 Running the unittests. 23 ---------------------- 24 25 To run the basic unit tests: 26 27 $ cd toolchain-utils/binary_search_tool/test 28 $ ./binary_search_tool_tester.py 29 30 Running the bisection tests, testing the compiler wrapper. 31 ---------------------------------------------------------- 32 33 If you want to run the bisection tests, and test the compiler wrapper 34 (to make sure the POPULATE_GOOD and POPULATE_BAD stages are still 35 working properly) you can do the following. 36 37 If you are testing with the ANDROID COMPILER WRAPPER, you need to to some 38 preliminary setup: 39 40 Set up the compiler wrapper to replace GCC: 41 42 $ cd <android-root/prebuilts/clang/host/linux-x86/clang-368880/bin 43 $ cp clang gcc 44 $ whereis gcc 45 gcc: /usr/bin/gcc /usr/lib/gcc /usr/bin/X11/gcc /usr/share/man/man1/gcc.1.gz 46 $ cd /usr/bin 47 $ ls -l gcc 48 lrwxrwxrwx 1 root root 7 Feb 3 17:00 gcc -> gcc-4.8* 49 $ sudo mv gcc gcc.real 50 $ sudo ln -s <android-root>/prebuilts/clang/host/linux-x86/clang-3688880/bin/gcc gcc 51 52 Move to the correct directory, then run the test script: 53 54 $ cd toolchain-utils/binary_search_tool 55 $ ./run_bisect_test.py 56 57 58 If you are testing with the CHROMEOS COMPILER WRAPPER, you MUST run the 59 tests from INSIDE your CHROOT (but you don't need to do any special setup): 60 61 $ cd <path-to-chromeos-root> 62 $ cros_sdk 63 $ cd ~/trunk/src/third_party/toolchain-utils 64 65 Set up your PYTHONPATH: 66 67 $ export PYTHONPATH=`pwd`:${PYTHONPATH} 68 $ cd binary_search_tool 69 $ export PYTHONPATH=`pwd`:${PYTHONPATH} 70 71 Run the test script: 72 73 $ ./run_bisect_test.py 74 75 76 Running the bisection tests, without testing the compiler wrapper. 77 ------------------------------------------------------------------ 78 79 $ cd toolchain-utils/binary_search_tool 80 $ ./full_bisect_test/run-test-nowrapper.sh 81
