set -e
set -x
-if [ ! -d "$1/lightning" ]; then
- echo "USAGE: $0 path-to-rust-lightning"
+if [ ! -d "$1/lightning" -o "$2" != "true" -a "$2" != "false" ]; then
+ echo "USAGE: $0 path-to-rust-lightning allow-std"
+ echo "allow-std must be either 'true' or 'false' to indicate if we should be built relying on time and pthread support"
exit 1
fi
+if [ "$2" = "true" ]; then
+ FEATURES_ARGS='--features=allow_wallclock_use'
+ FEATURES='"allow_wallclock_use"'
+fi
+
# On reasonable systems, we can use realpath here, but OSX is a diva with 20-year-old software.
ORIG_PWD="$(pwd)"
cd "$1/lightning"
BIN="$(pwd)/c-bindings-gen/target/release/c-bindings-gen"
pushd "$LIGHTNING_PATH"
-RUSTC_BOOTSTRAP=1 cargo rustc --profile=check -- -Zunstable-options --pretty=expanded |
+RUSTC_BOOTSTRAP=1 cargo rustc $FEATURES_ARGS --profile=check -- -Zunstable-options --pretty=expanded |
RUST_BACKTRACE=1 "$BIN" "$OUT/" lightning "$OUT_TEMPL" "$OUT_F" "$OUT_CPP"
popd
HOST_PLATFORM="$(rustc --version --verbose | grep "host:")"
if [ "$HOST_PLATFORM" = "host: x86_64-apple-darwin" ]; then
# OSX sed is for some reason not compatible with GNU sed
- sed -i '' 's|lightning = { .*|lightning = { path = "'"$LIGHTNING_PATH"'" }|' lightning-c-bindings/Cargo.toml
+ sed -i '' 's|lightning = { .*|lightning = { path = "'"$LIGHTNING_PATH"'", features = ['"$FEATURES"'] }|' lightning-c-bindings/Cargo.toml
else
- sed -i 's|lightning = { .*|lightning = { path = "'"$LIGHTNING_PATH"'" }|' lightning-c-bindings/Cargo.toml
+ sed -i 's|lightning = { .*|lightning = { path = "'"$LIGHTNING_PATH"'", features = ['"$FEATURES"'] }|' lightning-c-bindings/Cargo.toml
fi
+# Set path to include our rustc wrapper as well as cbindgen
+PATH="$(pwd)/deterministic-build-wrappers:$PATH:~/.cargo/bin"
# Now cd to lightning-c-bindings, build the generated bindings, and call cbindgen to build a C header file
-PATH="$PATH:~/.cargo/bin"
cd lightning-c-bindings
+# Remap paths so that our builds are deterministic
+export RUSTFLAGS="--remap-path-prefix $LIGHTNING_PATH=rust-lightning --remap-path-prefix $(pwd)=ldk-c-bindings --remap-path-prefix $HOME/.cargo= -C target-cpu=generic"
+export CFLAGS="-ffile-prefix-map=$HOME/.cargo="
+
cargo build
cbindgen -v --config cbindgen.toml -o include/lightning.h >/dev/null 2>&1
# Finally, sanity-check the generated C and C++ bindings with demo apps:
-CFLAGS="-Wall -Wno-nullability-completeness -pthread"
+LOCAL_CFLAGS="-Wall -Wno-nullability-completeness -pthread"
# Naively run the C demo app:
-gcc $CFLAGS -Wall -g -pthread demo.c target/debug/libldk.a -ldl
+gcc $LOCAL_CFLAGS -Wall -g -pthread demo.c target/debug/libldk.a -ldl
./a.out
# And run the C++ demo app in valgrind to test memory model correctness and lack of leaks.
-g++ $CFLAGS -std=c++11 -Wall -g -pthread demo.cpp -Ltarget/debug/ -lldk -ldl
+g++ $LOCAL_CFLAGS -std=c++11 -Wall -g -pthread demo.cpp -Ltarget/debug/ -lldk -ldl
if [ -x "`which valgrind`" ]; then
LD_LIBRARY_PATH=target/debug/ valgrind --error-exitcode=4 --memcheck:leak-check=full --show-leak-kinds=all ./a.out
echo
# Test a statically-linked C++ version, tracking the resulting binary size and runtime
# across debug, LTO, and cross-language LTO builds (using the same compiler each time).
-clang++ $CFLAGS -std=c++11 demo.cpp target/debug/libldk.a -ldl
+clang++ $LOCAL_CFLAGS -std=c++11 demo.cpp target/debug/libldk.a -ldl
strip ./a.out
echo " C++ Bin size and runtime w/o optimization:"
ls -lha a.out
set +e
# First the C demo app...
- clang-$LLVM_V $CFLAGS -fsanitize=memory -fsanitize-memory-track-origins -g demo.c target/debug/libldk.a -ldl
+ clang-$LLVM_V $LOCAL_CFLAGS -fsanitize=memory -fsanitize-memory-track-origins -g demo.c target/debug/libldk.a -ldl
./a.out
# ...then the C++ demo app
- clang++-$LLVM_V $CFLAGS -std=c++11 -fsanitize=memory -fsanitize-memory-track-origins -g demo.cpp target/debug/libldk.a -ldl
+ clang++-$LLVM_V $LOCAL_CFLAGS -std=c++11 -fsanitize=memory -fsanitize-memory-track-origins -g demo.cpp target/debug/libldk.a -ldl
./a.out >/dev/null
# restore exit-on-failure
mv Cargo.toml.bk Cargo.toml
# First the C demo app...
- $CLANG $CFLAGS -fsanitize=address -g demo.c target/debug/libldk.a -ldl
+ $CLANG $LOCAL_CFLAGS -fsanitize=address -g demo.c target/debug/libldk.a -ldl
ASAN_OPTIONS='detect_leaks=1 detect_invalid_pointer_pairs=1 detect_stack_use_after_return=1' ./a.out
# ...then the C++ demo app
- $CLANGPP $CFLAGS -std=c++11 -fsanitize=address -g demo.cpp target/debug/libldk.a -ldl
+ $CLANGPP $LOCAL_CFLAGS -std=c++11 -fsanitize=address -g demo.cpp target/debug/libldk.a -ldl
ASAN_OPTIONS='detect_leaks=1 detect_invalid_pointer_pairs=1 detect_stack_use_after_return=1' ./a.out >/dev/null
else
echo "WARNING: Please install clang-$RUSTC_LLVM_V and clang++-$RUSTC_LLVM_V to build with address sanitizer"
echo "WARNING: Can't use address sanitizer on non-Linux, non-OSX non-x86 platforms"
fi
+# Now build with LTO on on both C++ and rust, but without cross-language LTO:
+# Clear stale release build artifacts from previous runs
+cargo clean --release
+CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release -- -C lto
+clang++ $LOCAL_CFLAGS -std=c++11 -flto -O2 demo.cpp target/release/libldk.a -ldl
+
+if [ "$HOST_PLATFORM" != "host: x86_64-apple-darwin" -a "$CLANGPP" != "" ]; then
+ # If we can use cross-language LTO, use it for building C dependencies (i.e. libsecp256k1) as well
+ export CC="$CLANG"
+ export CFLAGS_wasm32_wasi="-target wasm32"
+fi
+
if [ "$(rustc --print target-list | grep wasm32-wasi)" != "" ]; then
# Test to see if clang supports wasm32 as a target (which is needed to build rust-secp256k1)
echo "int main() {}" > genbindings_wasm_test_file.c
clang -nostdlib -o /dev/null --target=wasm32-wasi -Wl,--no-entry genbindings_wasm_test_file.c > /dev/null 2>&1 &&
# And if it does, build a WASM binary without capturing errors
cargo rustc -v --target=wasm32-wasi -- -C embed-bitcode=yes &&
+ # Now that we've done our last non-LTO build, turn on LTO in CFLAGS as well
+ export CFLAGS="$CFLAGS -flto" &&
CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release --target=wasm32-wasi -- -C opt-level=s -C linker-plugin-lto -C lto ||
echo "Cannot build WASM lib as clang does not seem to support the wasm32-wasi target"
rm genbindings_wasm_test_file.c
fi
-# Now build with LTO on on both C++ and rust, but without cross-language LTO:
-CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release -- -C lto
-clang++ $CFLAGS -std=c++11 -flto -O2 demo.cpp target/release/libldk.a -ldl
strip ./a.out
echo "C++ Bin size and runtime with only RL (LTO) optimized:"
ls -lha a.out
# or Ubuntu packages). This should work fine on Distros which do more involved
# packaging than simply shipping the rustup binaries (eg Debian should Just Work
# here).
+ export CFLAGS="$CFLAGS -flto"
+ # Rust doesn't recognize CFLAGS changes, so we need to clean build artifacts
+ cargo clean --release
CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release -- -C linker-plugin-lto -C lto -C link-arg=-fuse-ld=lld
- $CLANGPP $CFLAGS -flto -fuse-ld=lld -O2 demo.cpp target/release/libldk.a -ldl
+ $CLANGPP $LOCAL_CFLAGS -flto -fuse-ld=lld -O2 demo.cpp target/release/libldk.a -ldl
strip ./a.out
echo "C++ Bin size and runtime with cross-language LTO:"
ls -lha a.out
projects / ldk-c-bindings / blobdiff