pmbootstrap-meow/pmb/aportgen/gcc.py
Caleb Connolly 198f302a36
treewide: add a Chroot type and adopt pathlib.Path (MR 2252)
Introduce a new module: pmb.core to contain explicitly typed pmbootstrap
API. The first component being Suffix and SuffixType. This explicitly
defines what suffixes are possible, future changes should aim to further
constrain this API (e.g. by validating against available device
codenames or architectures for buildroot suffixes).

Additionally, migrate the entire codebase over to using pathlib.Path.
This is a relatively new part of the Python standard library that uses a
more object oriented model for path handling. It also uses strong type
hinting and has other features that make it much cleaner and easier to
work with than pure f-strings. The Chroot class overloads the "/"
operator the same way the Path object does, allowing one to write paths
relative to a given chroot as:

builddir = chroot / "home/pmos/build"

The Chroot class also has a string representation ("native", or
"rootfs_valve-jupiter"), and a .path property for directly accessing the
absolute path (as a Path object).

The general idea here is to encapsulate common patterns into type hinted
code, and gradually reduce the amount of assumptions made around the
codebase so that future changes are easier to implement.

As the chroot suffixes are now part of the Chroot class, we also
implement validation for them, this encodes the rules on suffix naming
and will cause a runtime exception if a suffix doesn't follow the rules.
2024-06-23 12:38:37 +02:00

93 lines
3.4 KiB
Python

# Copyright 2023 Oliver Smith
# SPDX-License-Identifier: GPL-3.0-or-later
import pmb.aportgen.core
from pmb.core.types import PmbArgs
import pmb.helpers.git
import pmb.helpers.run
def generate(args: PmbArgs, pkgname):
# Copy original aport
prefix = pkgname.split("-")[0]
arch = pkgname.split("-")[1]
if prefix == "gcc":
upstream = pmb.aportgen.core.get_upstream_aport(args, "gcc", arch)
based_on = "main/gcc (from Alpine)"
elif prefix == "gcc4":
upstream = f"{args.aports}/main/gcc4"
based_on = "main/gcc4 (from postmarketOS)"
elif prefix == "gcc6":
upstream = f"{args.aports}/main/gcc6"
based_on = "main/gcc6 (from postmarketOS)"
else:
raise ValueError(f"Invalid prefix '{prefix}', expected gcc, gcc4 or"
" gcc6.")
pmb.helpers.run.user(args, ["cp", "-r", upstream, pmb.config.work / "aportgen"])
# Rewrite APKBUILD
fields = {
"pkgname": pkgname,
"pkgdesc": f"Stage2 cross-compiler for {arch}",
"arch": pmb.aportgen.get_cross_package_arches(pkgname),
"depends": f"binutils-{arch} mpc1",
"makedepends_build": "gcc g++ bison flex texinfo gawk zip"
" gmp-dev mpfr-dev mpc1-dev zlib-dev",
"makedepends_host": "linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev"
f" zlib-dev musl-dev-{arch} binutils-{arch}",
"subpackages": "",
# gcc6: options is already there, so we need to replace it and not only
# set it below the header like done below.
"options": "!strip",
"LIBGOMP": "false",
"LIBGCC": "false",
"LIBATOMIC": "false",
"LIBITM": "false",
}
# Latest gcc only, not gcc4 and gcc6
if prefix == "gcc":
fields["subpackages"] = f"g++-{arch}:gpp" \
f" libstdc++-dev-{arch}:libcxx_dev"
below_header = "CTARGET_ARCH=" + arch + """
CTARGET="$(arch_to_hostspec ${CTARGET_ARCH})"
LANG_D=false
LANG_OBJC=false
LANG_JAVA=false
LANG_GO=false
LANG_FORTRAN=false
LANG_ADA=false
options="!strip"
# abuild doesn't try to tries to install "build-base-$CTARGET_ARCH"
# when this variable matches "no*"
BOOTSTRAP="nobuildbase"
# abuild will only cross compile when this variable is set, but it
# needs to find a valid package database in there for dependency
# resolving, so we set it to /.
CBUILDROOT="/"
_cross_configure="--disable-bootstrap --with-sysroot=/usr/$CTARGET"
"""
replace_simple = {
# Do not package libstdc++, do not add "g++-$ARCH" here (already
# did that explicitly in the subpackages variable above, so
# pmbootstrap picks it up properly).
'*subpackages="$subpackages libstdc++:libcxx:*': None,
# We set the cross_configure variable at the beginning, so it does not
# use CBUILDROOT as sysroot. In the original APKBUILD this is a local
# variable, but we make it a global one.
'*_cross_configure=*': None,
# Do not build foreign arch libgcc, we use the one from Alpine (#2168)
'_libgcc=true*': '_libgcc=false',
}
pmb.aportgen.core.rewrite(args, pkgname, based_on, fields,
replace_simple=replace_simple,
below_header=below_header)