_toolchain.cxx: remove.
This is causing issues on Python 3.12 and in any case should be based on the Python `ziglang` package instead of this cursed setuptools hack.
This commit is contained in:
Catherine
parent
c343e879d3
commit
58b8acac0d
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@ -1,73 +0,0 @@
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import tempfile
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import sysconfig
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import warnings
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import os.path
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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="amaranth_cxx_")
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cwd = os.getcwd()
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try:
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# Unfortunately, `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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with warnings.catch_warnings():
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warnings.filterwarnings(action="ignore", category=DeprecationWarning)
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# This emits a DeprecationWarning on Python 3.10.
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import setuptools
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from distutils import ccompiler
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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_flags = sysconfig.get_config_var("LDSHARED")
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ld_cxxflags = sysconfig.get_config_var("LDCXXSHARED")
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if ld_cxxflags is None:
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# PyPy doesn't have LDCXXSHARED. Glue it together from CXX and LDSHARED and hope that
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# the result actually works; not many good options here.
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ld_cxxflags = " ".join([cxx.split()[0], *ld_flags.split()[1:]])
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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_cxxflags,
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)
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# Sometimes CCompiler is modified to have additional executable entries for compiling and
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# linking CXX shared objects (e.g. on Gentoo). These executables have to be set then.
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try:
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cc_driver.set_executables(
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compiler_so_cxx=f"{cxx} {cflags}",
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linker_so_cxx=ld_cxxflags,
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)
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except:
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pass
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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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@ -1,68 +0,0 @@
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import os
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import ctypes
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import tempfile
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import unittest
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from amaranth._toolchain.cxx import *
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class ToolchainCxxTestCase(unittest.TestCase):
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def setUp(self):
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self.include_dir = None
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self.build_dir = None
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def tearDown(self):
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if self.include_dir:
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self.include_dir.cleanup()
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if self.build_dir:
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self.build_dir.cleanup()
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def test_filename(self):
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self.build_dir, filename = build_cxx(
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cxx_sources={"test.cc": ""},
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output_name="answer",
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include_dirs=[],
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macros=[],
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)
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self.assertTrue(filename.startswith("answer"))
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def test_simple(self):
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self.build_dir, filename = build_cxx(
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cxx_sources={"test.cc": """
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extern "C" int answer() { return 42; }
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"""},
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output_name="answer",
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include_dirs=[],
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macros=[],
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)
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library = ctypes.cdll.LoadLibrary(os.path.join(self.build_dir.name, filename))
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self.assertEqual(library.answer(), 42)
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def test_macro(self):
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self.build_dir, filename = build_cxx(
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cxx_sources={"test.cc": """
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extern "C" int answer() { return ANSWER; }
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"""},
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output_name="answer",
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include_dirs=[],
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macros=["ANSWER=42"],
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)
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library = ctypes.cdll.LoadLibrary(os.path.join(self.build_dir.name, filename))
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self.assertEqual(library.answer(), 42)
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def test_include(self):
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self.include_dir = tempfile.TemporaryDirectory(prefix="amaranth_hxx_")
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with open(os.path.join(self.include_dir.name, "answer.h"), "w") as f:
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f.write("#define ANSWER 42")
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self.build_dir, filename = build_cxx(
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cxx_sources={"test.cc": """
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#include <answer.h>
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extern "C" int answer() { return ANSWER; }
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"""},
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output_name="answer",
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include_dirs=[self.include_dir.name],
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macros=[],
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)
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library = ctypes.cdll.LoadLibrary(os.path.join(self.build_dir.name, filename))
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self.assertEqual(library.answer(), 42)
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