mirror of
https://gitlab.postmarketos.org/postmarketOS/pmbootstrap.git
synced 2025-07-17 13:25:10 +03:00
34dd9d42ba
Cease merging pmbootstrap.cfg into args, implement a Context type to let us pull globals out of thin air (as an intermediate workaround) and rip args out of a lot of the codebase. This is just a first pass, after this we can split all the state that leaked over into Context into types with narrower scopes (like a BuildContext(), etc). Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
119 lines
3.6 KiB
Python
119 lines
3.6 KiB
Python
# Copyright 2023 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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import fnmatch
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import platform
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import pmb.config
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import pmb.parse.arch
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def alpine_native():
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machine = platform.machine()
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return machine_type_to_alpine(machine)
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def alpine_to_qemu(arch):
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"""
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Convert the architecture to the string used in the QEMU packaging.
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This corresponds to the package name of e.g. qemu-system-aarch64.
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"""
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mapping = {
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"x86": "i386",
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"x86_64": "x86_64",
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"armhf": "arm",
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"armv7": "arm",
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"aarch64": "aarch64",
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"riscv64": "riscv64",
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}
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for pattern, arch_qemu in mapping.items():
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if fnmatch.fnmatch(arch, pattern):
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return arch_qemu
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raise ValueError("Can not map Alpine architecture '" + arch + "'"
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" to the right Debian architecture.")
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def alpine_to_kernel(arch):
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"""
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Convert the architecture to the string used inside the kernel sources.
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You can read the mapping from the linux-vanilla APKBUILD for example.
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"""
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mapping = {
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"aarch64*": "arm64",
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"arm*": "arm",
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"ppc*": "powerpc",
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"s390*": "s390",
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"riscv64*": "riscv",
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}
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for pattern, arch_kernel in mapping.items():
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if fnmatch.fnmatch(arch, pattern):
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return arch_kernel
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return arch
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def alpine_to_hostspec(arch):
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"""
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See: abuild source code/functions.sh.in: arch_to_hostspec()
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"""
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mapping = {
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"aarch64": "aarch64-alpine-linux-musl",
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"armel": "armv5-alpine-linux-musleabi",
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"armhf": "armv6-alpine-linux-musleabihf",
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"armv7": "armv7-alpine-linux-musleabihf",
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"loongarch32": "loongarch32-alpine-linux-musl",
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"loongarchx32": "loongarchx32-alpine-linux-musl",
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"loongarch64": "loongarch64-alpine-linux-musl",
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"mips": "mips-alpine-linux-musl",
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"mips64": "mips64-alpine-linux-musl",
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"mipsel": "mipsel-alpine-linux-musl",
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"mips64el": "mips64el-alpine-linux-musl",
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"ppc": "powerpc-alpine-linux-musl",
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"ppc64": "powerpc64-alpine-linux-musl",
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"ppc64le": "powerpc64le-alpine-linux-musl",
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"riscv32": "riscv32-alpine-linux-musl",
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"riscv64": "riscv64-alpine-linux-musl",
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"s390x": "s390x-alpine-linux-musl",
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"x86": "i586-alpine-linux-musl",
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"x86_64": "x86_64-alpine-linux-musl",
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}
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if arch in mapping:
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return mapping[arch]
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raise ValueError("Can not map Alpine architecture '" + arch + "'"
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" to the right hostspec value")
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def cpu_emulation_required(arch):
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# Obvious case: host arch is target arch
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if pmb.config.arch_native == arch:
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return False
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# Other cases: host arch on the left, target archs on the right
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not_required = {
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"x86_64": ["x86"],
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"armv7": ["armel", "armhf"],
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"aarch64": ["armv7"],
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}
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if pmb.config.arch_native in not_required:
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if arch in not_required[pmb.config.arch_native]:
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return False
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# No match: then it's required
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return True
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def machine_type_to_alpine(machine_type: str) -> str:
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"""Translate a machine type to an Alpine architecture. A machine type can come from
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for example `$ uname -m` or platform.machine() from Python's standard library."""
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mapping = {
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"i686": "x86",
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"x86_64": "x86_64",
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"aarch64": "aarch64",
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"arm64": "aarch64",
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"armv6l": "armhf",
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"armv7l": "armv7",
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"armv8l": "armv7",
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}
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if machine_type in mapping:
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return mapping[machine_type]
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raise ValueError(f"Can not map machine type '{machine_type}'"
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" to the right Alpine Linux architecture")
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