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| | | |
| <syntaxHighlight lang=bash> | | <syntaxHighlight lang=bash> |
− | sudo apt-get install cmake gcc-4.8 g++-4.8 | + | sudo apt-get install cmake gcc-4.8 g++-4.8 bison flex libncurses5-dev subversion |
| </syntaxHighlight> | | </syntaxHighlight> |
| | | |
− | == ninja == | + | == second attempt == |
| + | |
| + | <syntaxHighlight lang=bash> |
| + | export LLVM_HOME=~/projects/llvm_home |
| + | export ISPC_HOME=$PWD |
| + | export CC=/usr/bin/gcc-4.8 |
| + | export CXX=/usr/bin/g++-4.8 |
| + | export CFLAGS="-march=armv7-a -mtune=cortex-a7 -mfpu=neon-vfpv4" |
| + | export CXXFLAGS="-march=armv7-a -mtune=cortex-a7 -mfpu=neon-vfpv4" |
| + | ./alloy.py -b --version=3.5 |
| + | export PATH=$PATH:$LLVM_HOME/bin-3.5/bin |
| + | |
| + | </syntaxHighlight> |
| + | |
| + | I should try adding <code>export CFLAGS="-march=armv7-a -mtune=cortex-a7 -mfpu=neon-vfpv4"</code> |
| + | |
| + | == first attempt == |
| + | |
| + | === ninja === |
| <syntaxHighlight lang=bash> | | <syntaxHighlight lang=bash> |
| git clone git://github.com/martine/ninja.git | | git clone git://github.com/martine/ninja.git |
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| </syntaxHighlight> | | </syntaxHighlight> |
| | | |
− | == clang == | + | === clang === |
| <syntaxHighlight lang=bash> | | <syntaxHighlight lang=bash> |
| git clone http://llvm.org/git/llvm.git | | git clone http://llvm.org/git/llvm.git |
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| Ninja will take many hours to complete. | | Ninja will take many hours to complete. |
| I didn't fully test the <code>-j</code> (concurrent build) options to ninja. ninja defaults to 6 on the rpi2. You will run out of memory if you do this. Even if you create larger swap for the pi, swapping to an sd card is a really major performance hit and you will be better of using fewer cores. | | I didn't fully test the <code>-j</code> (concurrent build) options to ninja. ninja defaults to 6 on the rpi2. You will run out of memory if you do this. Even if you create larger swap for the pi, swapping to an sd card is a really major performance hit and you will be better of using fewer cores. |
| + | |
| + | === self hosted clang === |
| + | <syntaxHighlight lang=bash> |
| + | cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/local/bin/clang -DCMAKE_CXX_COMPILER=/usr/local/bin/clang++ ../llvm -G Ninja |
| + | </syntaxHighlight> |
| + | |
| + | === ispc === |
| + | <syntaxHighlight lang=bash> |
| + | make ARM_ENABLED=1 -j4 |
| + | </syntaxHighlight> |