53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
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import tempfile
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import sysconfig
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import os.path
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from distutils import ccompiler
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__all__ = ["build_cxx"]
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def build_cxx(*, cxx_sources, output_name, include_dirs, macros):
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build_dir = tempfile.TemporaryDirectory(prefix="nmigen_cxx_")
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cwd = os.getcwd()
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try:
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# Unforuntately, `ccompiler.compile` assumes the paths are relative, and interprets
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# the directory name of the source path specially. That makes it necessary to build in
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# the output directory directly.
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os.chdir(build_dir.name)
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cc_driver = ccompiler.new_compiler()
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cc_driver.output_dir = "."
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cc = sysconfig.get_config_var("CC")
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cxx = sysconfig.get_config_var("CXX")
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cflags = sysconfig.get_config_var("CCSHARED")
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ld_ldflags = sysconfig.get_config_var("LDCXXSHARED")
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cc_driver.set_executables(
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compiler=f"{cc} {cflags}",
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compiler_so=f"{cc} {cflags}",
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compiler_cxx=f"{cxx} {cflags}",
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linker_so=ld_ldflags,
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)
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for include_dir in include_dirs:
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cc_driver.add_include_dir(include_dir)
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for macro in macros:
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cc_driver.define_macro(macro)
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for cxx_filename, cxx_source in cxx_sources.items():
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with open(cxx_filename, "w") as f:
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f.write(cxx_source)
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cxx_filenames = list(cxx_sources.keys())
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obj_filenames = cc_driver.object_filenames(cxx_filenames)
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so_filename = cc_driver.shared_object_filename(output_name)
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cc_driver.compile(cxx_filenames)
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cc_driver.link_shared_object(obj_filenames, output_filename=so_filename, target_lang="c++")
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return build_dir, so_filename
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finally:
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os.chdir(cwd)
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