pmbootstrap-meow/pmb/aportgen/gcc.py
Oliver Smith 62a05d4fbc
aportgen: build gcc-x86_64 etc. pkgs for aarch64
Instead of building cross packages for the native architecture, add a
new get_cross_packages_arches() function that returns the desired
architectures no matter what the current native architecture is.

So gcc-x86_64 will always have arch="aarch64", and gcc-aarch64 will
always have arch="x86_64".

We can tweak the function in the future if e.g. it becomes viable to
cross compile from riscv64. Or even better, remove this and the cross
compile packages upstreamed into alpine (see pmb#551).

Link: https://lists.sr.ht/~postmarketos/pmbootstrap-devel/%3C20231126104823.3723-1-ollieparanoid@postmarketos.org%3E
2023-12-03 20:11:31 +01:00

92 lines
3.3 KiB
Python

# Copyright 2023 Oliver Smith
# SPDX-License-Identifier: GPL-3.0-or-later
import pmb.aportgen.core
import pmb.helpers.git
import pmb.helpers.run
def generate(args, 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, f"{args.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)