# Generate (and reasonably test) C bindings
# First build the latest c-bindings-gen binary
-cd c-bindings-gen && cargo build && cd ..
+cd c-bindings-gen && cargo build --release && cd ..
# Then wipe all the existing C bindings (because we're being run in the right directory)
# note that we keep the few manually-generated files first:
mv ./bitcoin lightning-c-bindings/src/
# Finally, run the c-bindings-gen binary, building fresh bindings.
-SRC="$(pwd)/lightning/src"
OUT="$(pwd)/lightning-c-bindings/src"
OUT_TEMPL="$(pwd)/lightning-c-bindings/src/c_types/derived.rs"
OUT_F="$(pwd)/lightning-c-bindings/include/rust_types.h"
OUT_CPP="$(pwd)/lightning-c-bindings/include/lightningpp.hpp"
-RUST_BACKTRACE=1 ./c-bindings-gen/target/debug/c-bindings-gen $SRC/ $OUT/ lightning $OUT_TEMPL $OUT_F $OUT_CPP
+
+cd lightning
+RUSTC_BOOTSTRAP=1 cargo rustc --profile=check -- -Zunstable-options --pretty=expanded |
+ RUST_BACKTRACE=1 ../c-bindings-gen/target/release/c-bindings-gen $OUT/ lightning $OUT_TEMPL $OUT_F $OUT_CPP
+cd ..
# Now cd to lightning-c-bindings, build the generated bindings, and call cbindgen to build a C header file
PATH="$PATH:~/.cargo/bin"
if [ "$HOST_PLATFORM" = "host: x86_64-apple-darwin" ]; then
# OSX sed is for some reason not compatible with GNU sed
sed -i '' 's/typedef LDKnative.*Import.*LDKnative.*;//g' include/lightning.h
+
+ # stdlib.h doesn't exist in clang's wasm sysroot, and cbindgen
+ # doesn't actually use it anyway, so drop the import.
+ sed -i '' 's/#include <stdlib.h>//g' include/lightning.h
else
sed -i 's/typedef LDKnative.*Import.*LDKnative.*;//g' include/lightning.h
+
+ # stdlib.h doesn't exist in clang's wasm sysroot, and cbindgen
+ # doesn't actually use it anyway, so drop the import.
+ sed -i 's/#include <stdlib.h>//g' include/lightning.h
fi
# Finally, sanity-check the generated C and C++ bindings with demo apps:
+CFLAGS="-Wall -Wno-nullability-completeness -pthread"
+
# Naively run the C demo app:
-gcc -Wall -g -pthread demo.c target/debug/libldk.a -ldl
+gcc $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++ -std=c++11 -Wall -g -pthread demo.cpp -Ltarget/debug/ -lldk -ldl
+g++ $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++ -std=c++11 -Wall -pthread demo.cpp target/debug/libldk.a -ldl
+clang++ $CFLAGS -std=c++11 demo.cpp target/debug/libldk.a -ldl
strip ./a.out
echo " C++ Bin size and runtime w/o optimization:"
ls -lha a.out
set +e
# First the C demo app...
- clang-$LLVM_V -std=c++11 -fsanitize=memory -fsanitize-memory-track-origins -Wall -g -pthread demo.c target/debug/libldk.a -ldl
+ clang-$LLVM_V $CFLAGS -fsanitize=memory -fsanitize-memory-track-origins -g demo.c target/debug/libldk.a -ldl
./a.out
# ...then the C++ demo app
- clang++-$LLVM_V -std=c++11 -fsanitize=memory -fsanitize-memory-track-origins -Wall -g -pthread demo.cpp target/debug/libldk.a -ldl
+ clang++-$LLVM_V $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 -fsanitize=address -Wall -g -pthread demo.c target/debug/libldk.a -ldl
+ $CLANG $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 -std=c++11 -fsanitize=address -Wall -g -pthread demo.cpp target/debug/libldk.a -ldl
+ $CLANGPP $CFLAGS -std=c++11 -fsanitize=address -g demo.cpp target/debug/libldk.a -ldl
ASAN_OPTIONS='detect_leaks=1 detect_invalid_pointer_pairs=1 detect_stack_use_after_return=1' ./a.out >/dev/null
else
echo "WARNING: Please install clang-$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
+cargo rustc -v --target=wasm32-wasi -- -C embed-bitcode=yes || echo "WARNING: Failed to generate WASM LLVM-bitcode-embedded library"
+CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release --target=wasm32-wasi -- -C opt-level=s -C linker-plugin-lto -C lto || echo "WARNING: Failed to generate WASM LLVM-bitcode-embedded optimized library"
+
# 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++ -std=c++11 -Wall -flto -O2 -pthread demo.cpp target/release/libldk.a -ldl
+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
# packaging than simply shipping the rustup binaries (eg Debian should Just Work
# here).
CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release -- -C linker-plugin-lto -C lto -C link-arg=-fuse-ld=lld
- $CLANGPP -Wall -std=c++11 -flto -fuse-ld=lld -O2 -pthread demo.cpp target/release/libldk.a -ldl
+ $CLANGPP $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