Fr0zkaandClaude Opus 5.5
303b7b9f24
Clang -ffp-contract=on/fast and GCC's default (fast) all change the density hash on the L1 view; contraction off reproduces L1 (= Windows S13) at W1/W12. Seed sweep: 48 FloatingIslands seeds and 14 effective SurfaceWorld seeds (34 of 48 fell on a seed-independent cube) match across Clang/GCC and W1/W12. Standalone gains --seed/--recipe/--render-distance-chunks (viewer + headless) and a Windows replay script. Linux standalone workers get 32 MiB pthread stacks (TLS is 17.3 MiB/thread), so no external stack limit is needed. No Core or world-output change; MSVC compile unverified. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
122 lines
4.0 KiB
Bash
Executable File
122 lines
4.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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if [[ "${VOXELFORGE_LIMITED_BUILD:-0}" != "1" ]]; then
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exec taskset -c 0-11 prlimit --as=6442450944 -- env VOXELFORGE_LIMITED_BUILD=1 "$0" "$@"
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fi
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SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
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ROOT="$SCRIPT_DIR"
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COMPILER="clang++-19"
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VARIANT="clang19"
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FP_CONTRACT="off"
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JOBS=12
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while (($#)); do
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case "$1" in
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--compiler=*) COMPILER="${1#*=}" ;;
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--variant=*) VARIANT="${1#*=}" ;;
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--fp-contract=*) FP_CONTRACT="${1#*=}" ;;
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--jobs=*) JOBS="${1#*=}" ;;
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*) printf 'Unknown build option: %s\n' "$1" >&2; exit 2 ;;
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esac
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shift
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done
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if [[ ! "$JOBS" =~ ^[0-9]+$ ]] || ((JOBS < 1 || JOBS > 12)); then
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printf 'jobs must be from 1 to 12\n' >&2
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exit 2
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fi
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if [[ "$FP_CONTRACT" != "default" && "$FP_CONTRACT" != "off" && "$FP_CONTRACT" != "on" && "$FP_CONTRACT" != "fast" ]]; then
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printf 'fp-contract must be default, off, on, or fast\n' >&2
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exit 2
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fi
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command -v "$COMPILER" >/dev/null || { printf 'Compiler not found: %s\n' "$COMPILER" >&2; exit 2; }
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command -v ar >/dev/null || { printf 'ar not found\n' >&2; exit 2; }
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BUILD_DIR="$ROOT/Build/linux-$VARIANT"
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BIN_DIR="$ROOT/bin/linux"
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mkdir -p "$BUILD_DIR/wrappers" "$BUILD_DIR/objects" "$BIN_DIR"
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INCLUDES=(
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"-I$ROOT/Core/include"
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"-I$ROOT/Core/src"
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"-I$ROOT/Compat"
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"-I$ROOT/Source"
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"-I$ROOT/Source/VoxelForge/Public"
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"-I$ROOT/Source/VoxelForge/Private"
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)
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FLAGS=(
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-std=c++20 -O2 -mavx2 -mfma -fno-fast-math
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-fexceptions -pthread "${INCLUDES[@]}"
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)
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if [[ "$FP_CONTRACT" != "default" ]]; then
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FLAGS+=("-ffp-contract=$FP_CONTRACT")
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fi
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if [[ "$($COMPILER --version | head -n 1)" == *clang* ]]; then
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FLAGS+=(-Wno-c++11-narrowing)
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else
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FLAGS+=(-Wno-narrowing)
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fi
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CORE_OBJECTS=()
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LEGACY_OBJECTS=()
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PIDS=()
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wait_oldest() {
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local pid="${PIDS[0]}"
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wait "$pid"
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PIDS=("${PIDS[@]:1}")
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}
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compile_background() {
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local source="$1" output="$2"
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"$COMPILER" "${FLAGS[@]}" -c "$source" -o "$output" &
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PIDS+=("$!")
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if ((${#PIDS[@]} >= JOBS)); then wait_oldest; fi
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}
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while IFS= read -r source_name || [[ -n "$source_name" ]]; do
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source_name="${source_name%%#*}"
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source_name="${source_name//[[:space:]]/}"
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[[ -z "$source_name" ]] && continue
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source_path="$ROOT/$source_name"
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[[ -f "$source_path" ]] || { printf 'Missing source from core_sources.txt: %s\n' "$source_name" >&2; exit 2; }
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if [[ "$source_name" == "Core/src/VoxelForgeCore.cpp" ]]; then
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object="$BUILD_DIR/objects/VoxelForgeCore.o"
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compile_background "$source_path" "$object"
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CORE_OBJECTS+=("$object")
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continue
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fi
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wrapper_name="vfcore_${source_name//[^A-Za-z0-9]/_}"
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wrapper="$BUILD_DIR/wrappers/$wrapper_name.cpp"
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cat > "$wrapper" <<WRAPPER
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#include "CoreNamespacePreamble.h"
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namespace vfcore::detail
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{
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#include "$source_path"
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}
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WRAPPER
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object="$BUILD_DIR/objects/$wrapper_name.o"
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compile_background "$wrapper" "$object"
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CORE_OBJECTS+=("$object")
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# The same copied compatibility implementations are also needed by the standalone owner
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# loader/mesher host. They are compiled globally for that reference layer, as in Build.ps1.
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legacy_object="$BUILD_DIR/objects/legacy_${wrapper_name}.o"
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compile_background "$source_path" "$legacy_object"
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LEGACY_OBJECTS+=("$legacy_object")
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done < "$ROOT/Core/core_sources.txt"
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headless_object="$BUILD_DIR/objects/StreamBenchmarkHeadless.o"
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compile_background "$ROOT/Source/StreamBenchmarkHeadless.cpp" "$headless_object"
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LEGACY_OBJECTS+=("$headless_object")
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for pid in "${PIDS[@]}"; do wait "$pid"; done
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PIDS=()
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CORE_LIBRARY="$BUILD_DIR/libVoxelForgeCore.a"
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"$(command -v ar)" rcs "$CORE_LIBRARY" "${CORE_OBJECTS[@]}"
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OUTPUT="$BIN_DIR/VoxelForgeCoreHeadless-$VARIANT"
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"$COMPILER" -pthread "${LEGACY_OBJECTS[@]}" "$CORE_LIBRARY" -o "$OUTPUT"
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printf 'Built Core library: %s\nBuilt headless benchmark: %s\n' "$CORE_LIBRARY" "$OUTPUT"
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printf 'Compiler: %s | variant: %s | fp-contract: %s | jobs: %s\n' "$COMPILER" "$VARIANT" "$FP_CONTRACT" "$JOBS"
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