Python bindings for LLVM
This package has been tested with LLVM 3.3, Python 2.6, 2.7, 3.3 and 3.4. Other Python versions may work.
Get and extract LLVM 3.2 source tarball from llvm.org. Then, cd into the extracted directory.
Run ./configure --enable-optimized --prefix=LLVM_INSTALL_PATH.
Note: Without the --enable-optimized flag, debug build will be selected. Unless you are developing LLVM or llvmpy, it is recommended that the flag is used to reduce build time and binary size.
Note: Use prefix to select the installation path. It is recommended to separate your custom build from the default system package. Please replace LLVM_INSTALL_PATH with your own path.
Run REQUIRES_RTTI=1 make install to build and install.
Note: With LLVM 3.3, the default build configuration has C++ RTTI disabled. However, llvmpy requires RTTI.
Note: Use make -j2 install to enable concurrent build. Replace 2 with the actual number of processor you have.
Get llvm-py and install it:
$ git clone https://github.com/llvmpy/llvmpy.git $ cd llvmpy $ LLVM_CONFIG_PATH=LLVM_INSTALL_PATH/bin/llvm-config python setup.py install
Run the tests:
$ python -c "import llvm; llvm.test()"
See documentation at ‘http://www.llvmpy.org’ and examples under ‘test’.
Common Build Problems
- If llvmpy cannot be imported due to “undefined symbol: _ZTIN4llvm24PassRegistrationListenerE”, it is because RTTI is not enabled when building LLVM. “_ZTIN4llvm24PassRegistrationListenerE” is the typeinfo of PassRegistrationListener class.
- LLVM3.3 ssize_t mismatch on 64-bit Windows. Get patch from http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130701/180049.html
- OSX 10.9 Mavericks uses libc++ by default but Anaconda distributes LLVM binaries link with the old libstdc++. The two binaries are incompatible but there are no compile/link time warnings. The resulting binaries may generate segmentation fault at runtime (probably due to ABI mismatch). The Fix: Use the following c++ flags: -std=libstdc++ -mmacosx-version-min=10.6.
llvmpy is distributed under the new BSD license, which is similar to the LLVM license itself. See the file called LICENSE for the full license text.
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