X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=genbindings.sh;h=9529fc0815fba15c2b511dbba8bd657ba67ef9fa;hb=a80b3da47a40fdb6ee6ebb9892a23b11123074aa;hp=e208785f2156acac8ed0ad58b2b31e13615b0c58;hpb=8b3981918227cf2c033b4b568b4040e8af05d3be;p=ldk-java diff --git a/genbindings.sh b/genbindings.sh index e208785f..9529fc08 100755 --- a/genbindings.sh +++ b/genbindings.sh @@ -10,16 +10,53 @@ usage() { [ "$3" != "true" -a "$3" != "false" ] && usage [ "$4" != "true" -a "$4" != "false" ] && usage +set -x + if [ "$CC" != "" ]; then COMMON_COMPILE="$CC -std=c11 -Wall -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers -Wno-unused-function -Wno-nullability-completeness -Wno-pointer-sign -Wdate-time -ffile-prefix-map=$(pwd)=" else + CC=clang COMMON_COMPILE="clang -std=c11 -Wall -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers -Wno-unused-function -Wno-nullability-completeness -Wno-pointer-sign -Wdate-time -ffile-prefix-map=$(pwd)=" fi +TARGET_STRING="$LDK_TARGET" +if [ "$TARGET_STRING" = "" ]; then + # We assume clang-style $CC --version here, but worst-case we just get an empty suffix + TARGET_STRING="$($CC --version | grep Target | awk '{ print $2 }')" +fi +case "$TARGET_STRING" in + "x86_64-pc-linux"*) + LDK_TARGET_SUFFIX="_Linux-amd64" + LDK_JAR_TARGET=true + ;; + "x86_64-apple-darwin"*) + LDK_TARGET_SUFFIX="_MacOSX-x86_64" + LDK_JAR_TARGET=true + ;; + "aarch64-apple-darwin"*) + LDK_TARGET_SUFFIX="_MacOSX-aarch64" + LDK_JAR_TARGET=true + ;; + *) + LDK_TARGET_SUFFIX="_${TARGET_STRING}" +esac +if [ "$LDK_TARGET_CPU" = "" ]; then + LDK_TARGET_CPU="sandybridge" +fi + set -e +if [ "$LDK_GARBAGECOLLECTED_GIT_OVERRIDE" = "" ]; then + export LDK_GARBAGECOLLECTED_GIT_OVERRIDE=$(git describe --tag --dirty) +fi + cp "$1/lightning-c-bindings/include/lightning.h" ./ -sed -i "s/TransactionOutputs/C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ/g" ./lightning.h +if [ "$(rustc --version --verbose | grep "host:")" = "host: x86_64-apple-darwin" ]; then + # OSX sed is for some reason not compatible with GNU sed + sed -i '' "s/TransactionOutputs/C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ/g" ./lightning.h +else + sed -i "s/TransactionOutputs/C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ/g" ./lightning.h +fi echo "Creating Java bindings..." mkdir -p src/main/java/org/ldk/{enums,structs} @@ -36,12 +73,70 @@ cat src/main/jni/bindings.c.body >> src/main/jni/bindings.c javac -h src/main/jni src/main/java/org/ldk/enums/*.java src/main/java/org/ldk/impl/bindings.java rm src/main/java/org/ldk/enums/*.class src/main/java/org/ldk/impl/bindings*.class +IS_MAC=false +[ "$($CC --version | grep apple-darwin)" != "" ] && IS_MAC=true + echo "Building Java bindings..." -COMPILE="$COMMON_COMPILE -Isrc/main/jni -pthread -ldl -Wl,--no-undefined -shared -fPIC" +COMPILE="$COMMON_COMPILE -mcpu=$LDK_TARGET_CPU -Isrc/main/jni -pthread -ldl -shared -fPIC" +[ "$IS_MAC" = "false" ] && COMPILE="$COMPILE -Wl,--no-undefined" +[ "$IS_MAC" = "true" ] && COMPILE="$COMPILE -mmacosx-version-min=10.9" if [ "$3" = "true" ]; then - $COMPILE -o liblightningjni_debug.so -g -fsanitize=address -shared-libasan -Wl,-wrap,calloc -Wl,-wrap,realloc -Wl,-wrap,reallocarray -Wl,-wrap,malloc -Wl,-wrap,free -rdynamic -I"$1"/lightning-c-bindings/include/ $2 src/main/jni/bindings.c "$1"/lightning-c-bindings/target/debug/libldk.a -lm + [ "$IS_MAC" = "false" ] && COMPILE="$COMPILE -Wl,-wrap,calloc -Wl,-wrap,realloc -Wl,-wrap,reallocarray -Wl,-wrap,malloc -Wl,-wrap,free" + $COMPILE -o liblightningjni_debug$LDK_TARGET_SUFFIX.so -g -fsanitize=address -shared-libasan -rdynamic -I"$1"/lightning-c-bindings/include/ $2 src/main/jni/bindings.c "$1"/lightning-c-bindings/target/$LDK_TARGET/debug/libldk.a -lm else - $COMPILE -o liblightningjni_release.so -Wl,--version-script=libcode.version -flto -fuse-ld=lld -O3 -I"$1"/lightning-c-bindings/include/ $2 src/main/jni/bindings.c "$1"/lightning-c-bindings/target/release/libldk.a + LDK_LIB="$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a + if [ "$IS_MAC" = "false" ]; then + COMPILE="$COMPILE -Wl,--version-script=libcode.version -fuse-ld=lld" + echo "// __cxa_thread_atexit_impl is used to more effeciently cleanup per-thread local storage by rust libstd." >> src/main/jni/bindings.c + echo "// However, it is not available on glibc versions 2.17 or earlier, and rust libstd has a null-check and fallback in case it is missing." >> src/main/jni/bindings.c + echo "// Because it is weak-linked on the rust side, we should be able to simply define it explicitly here, forcing rust to use the fallback." >> src/main/jni/bindings.c + echo "void *__cxa_thread_atexit_impl = NULL;" >> src/main/jni/bindings.c + # Note that the above is not sufficient. For some reason involving ancient dark magic and + # haunted code segments, overriding the weak symbol only impacts sites which *call* the + # symbol in question, not sites which *compare with* the symbol in question. + # This means that the NULL check in rust's libstd will always think the function is + # callable while the function which is called ends up being NULL (leading to a jmp to the + # zero page and a quick SEGFAULT). + # This issue persists not only with directly providing a symbol, but also ld.lld's -wrap + # and --defsym arguments. + # In smaller programs, it appears to be possible to work around this with -Bsymbolic and + # -nostdlib, however when applied the full-sized JNI library here it no longer works. + # After exhausting nearly every flag documented in lld, the only reliable method appears + # to be editing the LDK binary. Luckily, LLVM's tooling makes this rather easy as we can + # disassemble it into very readable code, edit it, and then reassemble it. + [ ! -f "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a ] && exit 1 + if [ "$(ar t "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a | grep -v "\.o$" || echo)" != "" ]; then + echo "Archive contained non-object files!" + exit 1 + fi + if [ "$(ar t "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a | grep ldk.ldk.*-cgu.*.rcgu.o | wc -l)" != "1" ]; then + echo "Archive contained more than one LDK object file" + exit 1 + fi + mkdir -p tmp + rm -f tmp/* + ar x --output=tmp "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a + pushd tmp + llvm-dis ldk.ldk.*-cgu.*.rcgu.o + sed -i 's/br i1 icmp eq (i8\* @__cxa_thread_atexit_impl, i8\* null)/br i1 icmp eq (i8* null, i8* null)/g' ldk.ldk.*-cgu.*.rcgu.o.ll + llvm-as ldk.ldk.*-cgu.*.rcgu.o.ll -o ./libldk.bc + ar q libldk.a *.o + popd + LDK_LIB="tmp/libldk.bc tmp/libldk.a" + fi + $COMPILE -o liblightningjni_release$LDK_TARGET_SUFFIX.so -flto -O3 -I"$1"/lightning-c-bindings/include/ $2 src/main/jni/bindings.c $LDK_LIB + if [ "$IS_MAC" = "false" ]; then + GLIBC_SYMBS="$(objdump -T liblightningjni_release$LDK_TARGET_SUFFIX.so | grep GLIBC_ | grep -v "GLIBC_2\.2\." | grep -v "GLIBC_2\.3\(\.\| \)" | grep -v "GLIBC_2.\(14\|17\) " || echo)" + if [ "$GLIBC_SYMBS" != "" ]; then + echo "Unexpected glibc version dependency! Some users need glibc 2.17 support, symbols for newer glibcs cannot be included." + echo "$GLIBC_SYMBS" + exit 1 + fi + fi + if [ "$LDK_JAR_TARGET" = "true" ]; then + # Copy to JNI native directory for inclusion in JARs + cp liblightningjni_release$LDK_TARGET_SUFFIX.so src/main/resources/liblightningjni$LDK_TARGET_SUFFIX.nativelib + fi fi echo "Creating TS bindings..."