152 lines
4.7 KiB
Python
152 lines
4.7 KiB
Python
#!/usr/bin/env python3
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#
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# This file is part of the MicroPython project, http://micropython.org/
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#
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# The MIT License (MIT)
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#
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# Copyright (c) 2022 Andrew Leech
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# Copyright (c) 2022 Jim Mussared
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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from __future__ import print_function
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import os
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import re
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import stat
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import subprocess
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NATIVE_ARCHS = {
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"NATIVE_ARCH_NONE": "",
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"NATIVE_ARCH_X86": "x86",
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"NATIVE_ARCH_X64": "x64",
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"NATIVE_ARCH_ARMV6": "armv6",
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"NATIVE_ARCH_ARMV6M": "armv6m",
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"NATIVE_ARCH_ARMV7M": "armv7m",
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"NATIVE_ARCH_ARMV7EM": "armv7em",
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"NATIVE_ARCH_ARMV7EMSP": "armv7emsp",
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"NATIVE_ARCH_ARMV7EMDP": "armv7emdp",
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"NATIVE_ARCH_XTENSA": "xtensa",
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"NATIVE_ARCH_XTENSAWIN": "xtensawin",
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}
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globals().update(NATIVE_ARCHS)
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__all__ = ["version", "compile", "run", "CrossCompileError"] + list(NATIVE_ARCHS.keys())
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class CrossCompileError(Exception):
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pass
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_VERSION_RE = re.compile("mpy-cross emitting mpy v([0-9]+)(?:.([0-9]+))?")
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def _find_mpy_cross_binary(mpy_cross):
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if mpy_cross:
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return mpy_cross
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return os.path.abspath(os.path.join(os.path.dirname(__file__), "../build/mpy-cross"))
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def mpy_version(mpy_cross=None):
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"""
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Get the version and sub-version of the .mpy file format generated by this version of mpy-cross.
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Returns: A tuple of `(mpy_version, mpy_sub_version)`
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Optional keyword arguments:
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- mpy_cross: Specific mpy-cross binary to use
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"""
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version_info = run(["--version"], mpy_cross=mpy_cross)
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match = re.search(_VERSION_RE, version_info)
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mpy_version, mpy_sub_version = int(match.group(1)), int(match.group(2) or "0")
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return (
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mpy_version,
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mpy_sub_version,
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)
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def compile(src, dest=None, src_path=None, opt=None, march=None, mpy_cross=None, extra_args=None):
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"""
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Compile the specified .py file with mpy-cross.
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Returns: Standard output from mpy-cross as a string.
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Required arguments:
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- src: The path to the .py file
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Optional keyword arguments:
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- dest: The output .mpy file. Defaults to `src` (with .mpy extension)
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- src_path: The path to embed in the .mpy file (defaults to `src`)
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- opt: Optimisation level (0-3, default 0)
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- march: One of the `NATIVE_ARCH_*` constants (defaults to NATIVE_ARCH_NONE)
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- mpy_cross: Specific mpy-cross binary to use
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- extra_args: Additional arguments to pass to mpy-cross (e.g. `["-X", "emit=native"]`)
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"""
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if not src:
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raise ValueError("src is required")
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if not os.path.exists(src):
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raise CrossCompileError("Input .py file not found: {}.".format(src))
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args = []
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if src_path:
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args += ["-s", src_path]
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if dest:
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args += ["-o", dest]
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if march:
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args += ["-march=" + march]
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if opt is not None:
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args += ["-O{}".format(opt)]
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if extra_args:
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args += extra_args
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args += [src]
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run(args, mpy_cross)
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def run(args, mpy_cross=None):
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"""
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Run mpy-cross with the specified command line arguments.
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Prefer to use `compile()` instead.
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Returns: Standard output from mpy-cross as a string.
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Optional keyword arguments:
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- mpy_cross: Specific mpy-cross binary to use
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"""
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mpy_cross = _find_mpy_cross_binary(mpy_cross)
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if not os.path.exists(mpy_cross):
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raise CrossCompileError("mpy-cross binary not found at {}.".format(mpy_cross))
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try:
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st = os.stat(mpy_cross)
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os.chmod(mpy_cross, st.st_mode | stat.S_IEXEC)
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except OSError:
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pass
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try:
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return subprocess.check_output([mpy_cross] + args, stderr=subprocess.STDOUT).decode()
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except subprocess.CalledProcessError as er:
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raise CrossCompileError(er.output.decode())
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