Difference between revisions of "User:Hef/ispc on rpi2"
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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> | ||
Revision as of 18:22, 25 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
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