xref: /libCEED/python/build_ceed_cffi.py (revision ab213215e569729a95fd10d21627f8060eaeb868)
1# Copyright (c) 2017, Lawrence Livermore National Security, LLC. Produced at
2# the Lawrence Livermore National Laboratory. LLNL-CODE-734707. All Rights
3# reserved. See files LICENSE and NOTICE for details.
4#
5# This file is part of CEED, a collection of benchmarks, miniapps, software
6# libraries and APIs for efficient high-order finite element and spectral
7# element discretizations for exascale applications. For more information and
8# source code availability see http://github.com/ceed.
9#
10# The CEED research is supported by the Exascale Computing Project 17-SC-20-SC,
11# a collaborative effort of two U.S. Department of Energy organizations (Office
12# of Science and the National Nuclear Security Administration) responsible for
13# the planning and preparation of a capable exascale ecosystem, including
14# software, applications, hardware, advanced system engineering and early
15# testbed platforms, in support of the nation's exascale computing imperative.
16
17import os
18from cffi import FFI
19ffibuilder = FFI()
20
21# ------------------------------------------------------------------------------
22# Provide C definitions to CFFI
23# ------------------------------------------------------------------------------
24with open(os.path.abspath("include/ceed.h")) as f:
25    lines = [line.strip() for line in f if
26             not line.startswith("#") and
27             not line.startswith("  static") and
28             "CeedErrorImpl" not in line and
29             "const char *, ...);" not in line and
30             not line.startswith("CEED_EXTERN const char *const")]
31    lines = [line.replace("CEED_EXTERN", "extern") for line in lines]
32    header = '\n'.join(lines)
33    header = header.split("static inline CeedInt CeedIntPow", 1)[0]
34ffibuilder.cdef(header)
35
36ffibuilder.set_source("_ceed_cffi",
37                      """
38  #include <ceed.h>   // the C header of the library
39  """,
40                      include_dirs=[
41                          os.path.abspath("include")],  # include path
42                      libraries=["ceed"],   # library name, for the linker
43                      library_dirs=['./lib'],  # library path, for the linker
44                      # use libceed.so as installed
45                      runtime_library_dirs=['$ORIGIN/libceed/lib']
46                      )
47
48# ------------------------------------------------------------------------------
49# Builder
50# ------------------------------------------------------------------------------
51if __name__ == "__main__":
52    ffibuilder.compile(verbose=True)
53
54# ------------------------------------------------------------------------------
55