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Merged
theihor merged 1 commit into from
Oct 23, 2025
Merged

build-scx-scheds: move to non-meson build #202

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17 changes: 11 additions & 6 deletions build-scx-scheds/build-scheds.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,6 @@

set -euo pipefail

export LLVM_VERSION=${LLVM_VERSION:-20}
export SCX_ROOT=${SCX_ROOT:-}
export SCX_REVISION=${SCX_REVISION:-main}

Expand All @@ -15,10 +14,16 @@ if [[ -z "$SCX_ROOT" ]]; then
fi

pushd $SCX_ROOT

rm -rf $OUTPUT_DIR && mkdir -p $OUTPUT_DIR

# build C scheds
make all -j$(nproc)
mv build $OUTPUT_DIR/c-scheds

# build Rust scheds
. $HOME/.cargo/env
meson setup build
meson compile -C build
rm -rf $OUTPUT_DIR
mv build $OUTPUT_DIR
popd
cargo build --release
mv target/release/build $OUTPUT_DIR/rust-scheds

popd
62 changes: 37 additions & 25 deletions build-scx-scheds/install-dependencies.sh
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Original file line number Diff line number Diff line change
@@ -1,47 +1,59 @@
#!/bin/bash

set -euo pipefail
set -xeuo pipefail

export DEBIAN_FRONTEND=noninteractive
export LLVM_VERSION=${LLVM_VERSION:-20}
export PIPX_VERSION=${PIPX_VERSION:-1.7.1}
export LLVM_VERSION=${LLVM_VERSION:-21}
export LIBBPF_REVISION=${LIBBPF_REVISION:-master}
export BPFTOOL_REVISION=${BPFTOOL_REVISION:-main}

# Assume Ubuntu/Debian
export DEBIAN_FRONTEND=noninteractive
sudo -E apt-get -y update

# Download and install pipx
sudo -E apt-get --no-install-recommends -y install wget python3 python3-pip python3-venv
wget "https://github.com/pypa/pipx/releases/download/${PIPX_VERSION}/pipx.pyz"
chmod +x pipx.pyz && sudo mv pipx.pyz /usr/bin/pipx

# pipx ensurepath is not doing what we need
# install pipx apps to /usr/local/bin manually
export PIPX_BIN_DIR=${PIPX_BIN_DIR:-~/.local/bin}
pipx install meson
pipx install ninja
sudo cp -a "${PIPX_BIN_DIR}/meson" /usr/local/bin
sudo cp -a "${PIPX_BIN_DIR}/ninja" /usr/local/bin

echo "meson --version" && meson --version
echo "ninja --version" && ninja --version

# Install LLVM
sudo -E apt-get --no-install-recommends -y install lsb-release wget software-properties-common gnupg
sudo -E apt-get --no-install-recommends -y install \
curl git gnupg lsb-release software-properties-common wget
wget https://apt.llvm.org/llvm.sh
chmod +x llvm.sh
sudo -E ./llvm.sh ${LLVM_VERSION}
rm llvm.sh

# We have to set up the alternatives because meson expects
# clang and llvm-strip commands to be available
sudo update-alternatives --install \
/usr/bin/clang clang /usr/bin/clang-${LLVM_VERSION} 10
sudo update-alternatives --set clang /usr/bin/clang-${LLVM_VERSION}
sudo update-alternatives --install \
/usr/bin/llvm-strip llvm-strip /usr/bin/llvm-strip-${LLVM_VERSION} 10
sudo update-alternatives --set llvm-strip /usr/bin/llvm-strip-${LLVM_VERSION}
sudo update-alternatives --install \
/usr/bin/llvm-ar llvm-ar /usr/bin/llvm-ar-${LLVM_VERSION} 10
sudo update-alternatives --set llvm-ar /usr/bin/llvm-ar-${LLVM_VERSION}

# Install Rust
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y

# Install libs and other deps
sudo -E apt-get --no-install-recommends -y install \
build-essential libssl-dev libelf-dev cmake pkg-config jq \
protobuf-compiler libseccomp-dev
build-essential libssl-dev libelf-dev libzstd-dev libseccomp-dev \
libbfd-dev libcap-dev jq pkg-config protobuf-compiler

# Build and install libbpf
export LIBBPF_ROOT=$(mktemp -d libbpf.XXXX)
git clone https://github.com/libbpf/libbpf.git $LIBBPF_ROOT
pushd $LIBBPF_ROOT
git reset --hard $LIBBPF_REVISION
make -C src -j$(nproc)
make -C src install
sudo ln -s /usr/lib64/pkgconfig/libbpf.pc /usr/lib/pkgconfig/libbpf.pc
popd
rm -rf $LIBBPF_ROOT

# Build and install bpftool
export BPFTOOL_ROOT=$(mktemp -d bpftool.XXXX)
git clone --recurse-submodules https://github.com/libbpf/bpftool.git $BPFTOOL_ROOT
pushd $BPFTOOL_ROOT
git reset --hard $BPFTOOL_REVISION
git submodule update --init
make LLVM=1 LLVM_VERSION=-${LLVM_VERSION} -C src -j$(nproc)
make LLVM=1 LLVM_VERSION=-${LLVM_VERSION} -C src install
popd
rm -rf $BPFTOOL_ROOT
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