[ "$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 [ "$LDK_GARBAGECOLLECTED_GIT_OVERRIDE" = "" ]; then
javac -h src/main/jni src/main/java/org/ldk/enums/*.java src/main/java/org/ldk/impl/bindings.java
rm src/main/java/org/ldk/enums/*.class src/main/java/org/ldk/impl/bindings*.class
+IS_MAC=false
+[ "$($CC --version | grep apple-darwin)" != "" ] && IS_MAC=true
+
echo "Building Java bindings..."
-COMPILE="$COMMON_COMPILE -march=sandybridge -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..."
projects / ldk-java / blobdiff