Difference between revisions of "User:Hef/ispc on rpi2"
< User:Hef
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− | == ninja == | + | == first attempt == |
+ | |||
+ | === ninja === | ||
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git clone git://github.com/martine/ninja.git | git clone git://github.com/martine/ninja.git | ||
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− | == clang == | + | === clang === |
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git clone http://llvm.org/git/llvm.git | git clone http://llvm.org/git/llvm.git | ||
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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 == | + | === self hosted clang === |
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cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/local/bin/clang -DCMAKE_CXX_COMPILER=/usr/local/bin/clang++ ../llvm -G Ninja | cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/local/bin/clang -DCMAKE_CXX_COMPILER=/usr/local/bin/clang++ ../llvm -G Ninja | ||
</syntaxHighlight> | </syntaxHighlight> | ||
− | == ispc == | + | === ispc === |
<syntaxHighlight lang=bash> | <syntaxHighlight lang=bash> | ||
make ARM_ENABLED=1 -j4 | make ARM_ENABLED=1 -j4 | ||
</syntaxHighlight> | </syntaxHighlight> |
Revision as of 04:33, 27 March 2015
setup
gcc 4.6 both won't compile latest llvm/clang and will generate an ICE on older versions of clang.
sudo apt-get install cmake gcc-4.8 g++-4.8 bison flex libncurses5-dev subversion
first attempt
ninja
git clone git://github.com/martine/ninja.git
cd ninja
git checkout release
./configure.py --bootstrap
sudo cp ninja /usr/local/bin/ninja
clang
git clone http://llvm.org/git/llvm.git
cd llvm/tools
git clone http://llvm.org/git/clang.git
cd ../../..
mkdir llvm-build
cd llvm-build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/bin/gcc-4.8 -DCMAKE_CXX_COMPILER=/usr/bin/g++-4.8 ../llvm -G Ninja
ninja -j1
Ninja will take many hours to complete.
I didn't fully test the -j
(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
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/local/bin/clang -DCMAKE_CXX_COMPILER=/usr/local/bin/clang++ ../llvm -G Ninja
ispc
make ARM_ENABLED=1 -j4