47 lines
1.8 KiB
Shell
Executable file
47 lines
1.8 KiB
Shell
Executable file
#!/usr/bin/env bash
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# build-cross.sh — cross-compile souveraine for aarch64 (Pixel 3 / Arch ARM).
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#
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# The sysroot is /usr/aarch64-linux-gnu on the laptop and
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# ~/aarch64-sysroot on ArchDev. Set SOUVERAINE_AARCH64_SYSROOT for the latter.
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# PKG_CONFIG_* is exported here, not in .cargo/config.toml — cargo's [env]
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# block doesn't reliably reach build-script probes. The aarch64 linker scripts
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# need a small unprivileged overlay so absolute /usr/lib paths stay inside the
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# target sysroot rather than resolving to the x86 host.
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set -euo pipefail
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cd "$(dirname "$0")/.."
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SYSROOT="${SOUVERAINE_AARCH64_SYSROOT:-/usr/aarch64-linux-gnu}"
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TARGET_DIR="${CARGO_TARGET_DIR:-$PWD/target}"
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LINKER_SCRIPTS="$TARGET_DIR/aarch64-linker-scripts"
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[[ -d "$SYSROOT/usr/lib" ]] || {
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echo "aarch64 sysroot is missing: $SYSROOT" >&2
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exit 1
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}
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mkdir -p "$LINKER_SCRIPTS"
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while IFS= read -r script; do
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name="${script##*/}"
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tmp="$LINKER_SCRIPTS/.${name}.$$"
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# '=' tells GNU ld to resolve this path below --sysroot. Only linker
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# scripts (plain-text *.so files) are copied; actual shared objects stay
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# in the sysroot.
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sed -E 's#([ (])/(usr/)?lib/#\1=/\2lib/#g' "$script" > "$tmp"
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mv "$tmp" "$LINKER_SCRIPTS/$name"
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done < <(find "$SYSROOT/usr/lib" -maxdepth 1 -type f -name '*.so' \
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-exec grep -lE '(^|[ (])/(usr/)?lib/' {} +)
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export PKG_CONFIG_ALLOW_CROSS=1
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export PKG_CONFIG_LIBDIR="$SYSROOT/usr/lib/pkgconfig"
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export PKG_CONFIG_SYSROOT_DIR="$SYSROOT"
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export PKG_CONFIG="$PWD/.cargo/aarch64-pkg-config"
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export SOUVERAINE_AARCH64_SYSROOT="$SYSROOT"
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export SOUVERAINE_AARCH64_LINKER_SCRIPTS="$LINKER_SCRIPTS"
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export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="$PWD/scripts/aarch64-linker"
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cargo build --release --target aarch64-unknown-linux-gnu "$@"
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BIN="$TARGET_DIR/aarch64-unknown-linux-gnu/release/souveraine"
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echo "== built: $BIN =="
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file "$BIN"
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