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# Copyright 2026 Gurov <thuggerthugger1@duck.com>
# Distributed under the terms of the GNU General Public License v2
require cargo [ rust_minimum_version=1.94.1 ] github [ user=sched-ext tag=v${PV} ] \
systemd-service [ systemd_files=[ services/scx.service ] ]
SUMMARY="sched_ext BPF schedulers and tools"
LICENCES="GPL-2"
SLOT="0"
PLATFORMS="~amd64"
DEPENDENCIES+="
build:
dev-lang/clang[>=16]
dev-util/pkgconf
build+run:
dev-util/elfutils
dev-libs/libbpf[>=1.7.0]
sys-libs/libseccomp
sys-libs/zlib
app-arch/zstd
run:
sys-apps/systemd
"
SCX_BINARIES=(
scx_beerland scx_bpfland scx_cake scx_chaos scx_cosmos scx_flash
scx_forge scx_lavd scx_layered scx_mitosis scx_p2dq
scx_pandemonium scx_rustland scx_rusty scx_tickless
scxtop vmlinux_docify
)
CARGO_SRC_COMPILE_PARAMS=()
for scheduler in "${SCX_BINARIES[@]}" ; do
CARGO_SRC_COMPILE_PARAMS+=( -p "${scheduler}" )
done
CARGO_SRC_TEST_PARAMS=( "${CARGO_SRC_COMPILE_PARAMS[@]}" )
export BPF_CLANG="/usr/$(exhost --target)/bin/clang"
export LIBBPF_SYS_LIBRARY_PATH="/usr/$(exhost --target)/lib"
src_prepare() {
default
local manifest count=0
for manifest in rust/scx_arena/scx_arena/Cargo.toml \
rust/scx_bpf_compat/Cargo.toml rust/scx_cargo/Cargo.toml \
rust/scx_rustland_core/Cargo.toml rust/scx_userspace_arena/Cargo.toml \
rust/scx_utils/Cargo.toml scheds/rust/scx_*/Cargo.toml \
tools/scxtop/Cargo.toml ; do
[[ -f ${manifest} ]] || die "Missing Cargo manifest: ${manifest}"
local before after
before=$(grep -Ec '^libbpf-(rs|cargo|sys) = ' "${manifest}") || :
[[ ${before} -gt 0 ]] || die "Unexpected libbpf declarations in ${manifest}"
edo sed -i -E \
-e 's/^(libbpf-(rs|cargo|sys) = )"(=[^"]+)"$/\1{ version = "\3", default-features = false }/' \
-e 's/^(libbpf-(rs|cargo|sys) = \{ version = "[^"]+") \}$/\1, default-features = false }/' \
"${manifest}"
after=$(grep -Ec '^libbpf-(rs|cargo|sys) = \{ version = "[^"]+", default-features = false \}$' "${manifest}") || :
[[ ${before} -eq ${after} ]] || die "Could not disable libbpf defaults in ${manifest}"
(( count += before ))
done
[[ ${count} -eq 26 ]] || die "Expected 26 libbpf dependency declarations, found ${count}"
edo sed -i "/^ExecStart=/i Environment=\"PATH=/usr/$(exhost --target)/bin:/usr/bin:/bin\"" \
services/scx.service
}
src_install() {
exeinto /usr/$(exhost --target)/bin
local binary
for binary in "${SCX_BINARIES[@]}" ; do
doexe "target/$(rust_target_arch_name)/release/${binary}"
done
install_systemd_files
insinto /etc/default
doins services/scx
emagicdocs
}
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