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bherbruck
baca790471
build.sh used $OUT/build for every source tree, so a worktree build with SOLIDCORE_CPP_DIR pointing at the main tree's bin/cpp hit CMake's "source does not match" error. The build tree is now $OUT/build-<sha256(harness path)[:8]> (a legacy $OUT/build configured for the same source is reused); lib/, ffi.env and compile_commands.json stay at fixed paths for solidcore-ffi. Header documents SOLIDCORE_CPP_DIR; AGENTS.md section 2 says to build from the main tree. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01V8ohWGLCzFPoZriCeSSero
85 lines
3.2 KiB
Bash
Executable File
85 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build the upstream SMLib/SM_API C++ reference kernel (and its test apps)
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# into $OUT: $SOLIDCORE_CPP_DIR if set (the same override solidcore-ffi honours),
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# else <repo>/bin/cpp. See plan/baseline.md.
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#
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# Usage: harness/cpp/build.sh [--no-tests] [--jobs N] [--clean]
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#
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# Run it from the main tree; git worktrees reuse that build by exporting
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# SOLIDCORE_CPP_DIR=<main tree>/bin/cpp. Running it from a worktree with that override
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# is also safe: the CMake build tree is keyed by this harness's source path, so each
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# source tree gets its own build dir and CMake never sees a mismatched source.
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#
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# Outputs (in $OUT):
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# build-<hash>/ CMake/ninja build tree; <hash> = first 8 hex of the
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# sha256 of this harness's absolute path. A legacy
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# build/ whose CMake source is this harness is reused.
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# compile_commands.json copied right after configure
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# ffi.env settings for crates/solidcore-ffi/build.rs
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# lib/libSMLib.a static libs (link order: SM_API then SMLib)
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# lib/libSM_API.a
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# tests/SM_API_test_app, tests/prog_test_app
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set -euo pipefail
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HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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ROOT="$(cd "$HERE/../.." && pwd)"
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OUT="${SOLIDCORE_CPP_DIR:-$ROOT/bin/cpp}" # same override solidcore-ffi honours
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# One CMake build tree per source tree (see header). Installed libs, ffi.env and
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# compile_commands.json stay at fixed paths in $OUT so solidcore-ffi finds them.
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SRC_KEY="$(printf '%s' "$HERE" | sha256sum | cut -c1-8)"
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BUILD="$OUT/build-$SRC_KEY"
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LEGACY="$OUT/build"
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if [ ! -d "$BUILD" ] && [ -f "$LEGACY/CMakeCache.txt" ] \
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&& grep -qxF "CMAKE_HOME_DIRECTORY:INTERNAL=$HERE" "$LEGACY/CMakeCache.txt"; then
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BUILD="$LEGACY"
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fi
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JOBS=6
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TESTS=ON
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CLEAN=0
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while [ $# -gt 0 ]; do
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case "$1" in
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--no-tests) TESTS=OFF ;;
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--jobs) JOBS="$2"; shift ;;
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--clean) CLEAN=1 ;;
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*) echo "unknown argument: $1" >&2; exit 2 ;;
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esac
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shift
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done
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[ "$CLEAN" = 1 ] && rm -rf "$BUILD"
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mkdir -p "$BUILD" "$OUT/lib"
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GEN=()
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if command -v ninja >/dev/null 2>&1; then GEN=(-G Ninja); fi
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# g++ (GNU) is the reference compiler; override with CXX=... if needed.
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export CXX="${CXX:-g++}"
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start=$(date +%s)
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nice -n 10 cmake -S "$HERE" -B "$BUILD" "${GEN[@]}" \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_INSTALL_PREFIX="$OUT" \
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-DSMLIB_UPSTREAM="$ROOT/upstream" \
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-DSC_BUILD_TESTS="$TESTS"
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cp -f "$BUILD/compile_commands.json" "$OUT/compile_commands.json"
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echo "compile_commands.json -> $OUT/compile_commands.json"
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# Settings consumed by crates/solidcore-ffi/build.rs (format documented there).
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# Must match the flags in CMakeLists.txt so shims see the same ABI/defines.
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cat > "$OUT/ffi.env" <<ENV
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# @generated by harness/cpp/build.sh -- do not edit
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INCLUDE_DIRS=upstream/source/SM_API/inc upstream/source/SMLib/inc
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DEFINES=NDEBUG NOMINMAX SM_GRAPHICS_CALLBACKS=1 _GLIBCXX_USE_CXX11_ABI=1
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CXXFLAGS=-std=c++17 -O2 -ffp-contract=off -fno-fast-math -fPIC -w
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LIBS=SM_API SMLib
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# No TBB: upstream TBB code is only compiled under SM_USE_TBB, which is never defined.
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SYSLIBS=pthread
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ENV
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echo "ffi.env -> $OUT/ffi.env"
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nice -n 10 cmake --build "$BUILD" --parallel "$JOBS"
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cmake --install "$BUILD" >/dev/null
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end=$(date +%s)
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echo "C++ build finished in $((end - start)) s; libs in $OUT/lib"
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