_ Git - ldk-java/blob - genbindings.sh

   1 #!/bin/bash
   2 usage() {
   3         echo "USAGE: path/to/ldk-c-bindings \"JNI_CFLAGS\" debug android"
   4         echo "For JNI_CFLAGS you probably want -I/usr/lib/jvm/java-11-openjdk-amd64/include/ -I/usr/lib/jvm/java-11-openjdk-amd64/include/linux/"
   5         echo "debug should either be true or false"
   6         echo "android should either be true or false"
   7         exit 1
   8 }
   9 [ "$1" = "" ] && usage
  10 [ "$3" != "true" -a "$3" != "false" ] && usage
  11 [ "$4" != "true" -a "$4" != "false" ] && usage
  12
  13 set -x
  14
  15 if [ "$CC" != "" ]; then
  16         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)="
  17 else
  18         CC=clang
  19         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=$(pwd)="
  20 fi
  21
  22 TARGET_STRING="$LDK_TARGET"
  23 if [ "$TARGET_STRING" = "" ]; then
  24         # We assume clang-style $CC --version here, but worst-case we just get an empty suffix
  25         TARGET_STRING="$($CC --version | grep Target | awk '{ print $2 }')"
  26 fi
  27 case "$TARGET_STRING" in
  28         "x86_64-pc-linux"*)
  29                 LDK_TARGET_SUFFIX="_Linux-amd64"
  30                 LDK_JAR_TARGET=true
  31                 ;;
  32         "x86_64-apple-darwin"*)
  33                 LDK_TARGET_SUFFIX="_MacOSX-x86_64"
  34                 LDK_JAR_TARGET=true
  35                 ;;
  36         "aarch64-apple-darwin"*)
  37                 LDK_TARGET_SUFFIX="_MacOSX-aarch64"
  38                 LDK_JAR_TARGET=true
  39                 ;;
  40         *)
  41                 LDK_TARGET_SUFFIX="_${TARGET_STRING}"
  42 esac
  43 if [ "$LDK_TARGET_CPU" = "" ]; then
  44         LDK_TARGET_CPU="sandybridge"
  45 fi
  46
  47 set -e
  48
  49 if [ "$LDK_GARBAGECOLLECTED_GIT_OVERRIDE" = "" ]; then
  50         export LDK_GARBAGECOLLECTED_GIT_OVERRIDE=$(git describe --tag --dirty)
  51 fi
  52 if [ "${LDK_GARBAGECOLLECTED_GIT_OVERRIDE:0:1}" != "v" ]; then
  53         echo "Version tag should start with a v" > /dev/stderr
  54         exit 1
  55 fi
  56
  57 cp "$1/lightning-c-bindings/include/lightning.h" ./
  58 if [ "$(rustc --version --verbose | grep "host:")" = "host: x86_64-apple-darwin" ]; then
  59         # OSX sed is for some reason not compatible with GNU sed
  60         sed -i '' "s/TransactionOutputs/C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ/g" ./lightning.h
  61         sed -i '' "s/^    <version>.*<\/version>/    <version>${LDK_GARBAGECOLLECTED_GIT_OVERRIDE:1:100}<\/version>/g" pom.xml
  62 else
  63         sed -i "s/TransactionOutputs/C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ/g" ./lightning.h
  64         sed -i "s/^    <version>.*<\/version>/    <version>${LDK_GARBAGECOLLECTED_GIT_OVERRIDE:1:100}<\/version>/g" pom.xml
  65 fi
  66
  67 echo "Creating Java bindings..."
  68 mkdir -p src/main/java/org/ldk/{enums,structs}
  69 rm -f src/main/java/org/ldk/{enums,structs}/*.java
  70 rm -f src/main/jni/*.h
  71 if [ "$4" = "true" ]; then
  72         ./genbindings.py "./lightning.h" src/main/java/org/ldk/impl/bindings.java src/main/java/org/ldk src/main/jni/bindings.c.body $3 android $4
  73 else
  74         ./genbindings.py "./lightning.h" src/main/java/org/ldk/impl/bindings.java src/main/java/org/ldk src/main/jni/bindings.c.body $3 java $4
  75 fi
  76 echo "#define LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ LDKCVec_TransactionOutputsZ" > src/main/jni/bindings.c
  77 echo "#define CVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ_free CVec_TransactionOutputsZ_free" >> src/main/jni/bindings.c
  78 cat src/main/jni/bindings.c.body >> src/main/jni/bindings.c
  79 javac -h src/main/jni src/main/java/org/ldk/enums/*.java src/main/java/org/ldk/impl/bindings.java
  80 rm src/main/java/org/ldk/enums/*.class src/main/java/org/ldk/impl/bindings*.class
  81
  82 IS_MAC=false
  83 [ "$($CC --version | grep apple-darwin)" != "" ] && IS_MAC=true
  84
  85 echo "Building Java bindings..."
  86 COMPILE="$COMMON_COMPILE -mcpu=$LDK_TARGET_CPU -Isrc/main/jni -pthread -ldl -shared -fPIC"
  87 [ "$IS_MAC" = "false" ] && COMPILE="$COMPILE -Wl,--no-undefined"
  88 [ "$IS_MAC" = "true" ] && COMPILE="$COMPILE -mmacosx-version-min=10.9"
  89 if [ "$3" = "true" ]; then
  90         [ "$IS_MAC" = "false" ] && COMPILE="$COMPILE -Wl,-wrap,calloc -Wl,-wrap,realloc -Wl,-wrap,reallocarray -Wl,-wrap,malloc -Wl,-wrap,free"
  91         $COMPILE -o liblightningjni_debug$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
  92 else
  93         LDK_LIB="$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a
  94         if [ "$IS_MAC" = "false" -a "$4" = "false" ]; then
  95                 COMPILE="$COMPILE -Wl,--version-script=libcode.version -fuse-ld=lld"
  96                 # __cxa_thread_atexit_impl is used to more effeciently cleanup per-thread local storage by rust libstd.
  97                 # However, it is not available on glibc versions 2.17 or earlier, and rust libstd has a null-check and
  98                 # fallback in case it is missing.
  99                 # Because it is weak-linked on the rust side, we should be able to simply define it
 100                 # explicitly, forcing rust to use the fallback. However, for some reason involving ancient
 101                 # dark magic and haunted code segments, overriding the weak symbol only impacts sites which
 102                 # *call* the symbol in question, not sites which *compare with* the symbol in question.
 103                 # This means that the NULL check in rust's libstd will always think the function is
 104                 # callable while the function which is called ends up being NULL (leading to a jmp to the
 105                 # zero page and a quick SEGFAULT).
 106                 # This issue persists not only with directly providing a symbol, but also ld.lld's -wrap
 107                 # and --defsym arguments.
 108                 # In smaller programs, it appears to be possible to work around this with -Bsymbolic and
 109                 # -nostdlib, however when applied the full-sized JNI library here it no longer works.
 110                 # After exhausting nearly every flag documented in lld, the only reliable method appears
 111                 # to be editing the LDK binary. Luckily, LLVM's tooling makes this rather easy as we can
 112                 # disassemble it into very readable code, edit it, and then reassemble it.
 113                 # Note that if we do so we don't have to bother overriding the actual call, LLVM should
 114                 # optimize it away, which also provides a good check that there isn't anything actually
 115                 # relying on it elsewhere.
 116                 [ ! -f "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a ] && exit 1
 117                 if [ "$(ar t "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a | grep -v "\.o$" || echo)" != "" ]; then
 118                         echo "Archive contained non-object files!"
 119                         exit 1
 120                 fi
 121                 if [ "$(ar t "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a | grep ldk.ldk.*-cgu.*.rcgu.o | wc -l)" != "1" ]; then
 122                         echo "Archive contained more than one LDK object file"
 123                         exit 1
 124                 fi
 125                 mkdir -p tmp
 126                 rm -f tmp/*
 127                 ar x --output=tmp "$1"/lightning-c-bindings/target/$LDK_TARGET/release/libldk.a
 128                 pushd tmp
 129                 llvm-dis ldk.ldk.*-cgu.*.rcgu.o
 130                 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
 131                 llvm-as ldk.ldk.*-cgu.*.rcgu.o.ll -o ./libldk.bc
 132                 ar q libldk.a *.o
 133                 popd
 134                 LDK_LIB="tmp/libldk.bc tmp/libldk.a"
 135         fi
 136         $COMPILE -o liblightningjni_release$LDK_TARGET_SUFFIX.so -flto -O3 -I"$1"/lightning-c-bindings/include/ $2 src/main/jni/bindings.c $LDK_LIB
 137         if [ "$IS_MAC" = "false" -a "$4" = "false" ]; then
 138                 GLIBC_SYMBS="$(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)"
 139                 if [ "$GLIBC_SYMBS" != "" ]; then
 140                         echo "Unexpected glibc version dependency! Some users need glibc 2.17 support, symbols for newer glibcs cannot be included."
 141                         echo "$GLIBC_SYMBS"
 142                         exit 1
 143                 fi
 144         fi
 145         if [ "$LDK_JAR_TARGET" = "true" ]; then
 146                 # Copy to JNI native directory for inclusion in JARs
 147                 mkdir -p src/main/resources/
 148                 cp liblightningjni_release$LDK_TARGET_SUFFIX.so src/main/resources/liblightningjni$LDK_TARGET_SUFFIX.nativelib
 149         fi
 150 fi
 151
 152 echo "Creating TS bindings..."
 153 mkdir -p ts/{enums,structs}
 154 rm -f ts/{enums,structs}/*.ts
 155 ./genbindings.py "./lightning.h" ts/bindings.ts ts ts/bindings.c.body $3 typescript
 156 echo "#define LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ LDKCVec_TransactionOutputsZ" > ts/bindings.c
 157 echo "#define CVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ_free CVec_TransactionOutputsZ_free" >> ts/bindings.c
 158 cat ts/bindings.c.body >> ts/bindings.c
 159
 160 echo "Building TS bindings..."
 161 COMPILE="$COMMON_COMPILE -flto -Wl,--no-entry -Wl,--export-dynamic -Wl,-allow-undefined -nostdlib --target=wasm32-wasi"
 162 # We only need malloc and assert/abort, but for now just use WASI for those:
 163 #EXTRA_LINK=/usr/lib/wasm32-wasi/libc.a
 164 EXTRA_LINK=
 165 if [ "$3" = "true" ]; then
 166         $COMPILE -o liblightningjs_debug.wasm -g -Wl,-wrap,calloc -Wl,-wrap,realloc -Wl,-wrap,reallocarray -Wl,-wrap,malloc -Wl,-wrap,free -I"$1"/lightning-c-bindings/include/ ts/bindings.c "$1"/lightning-c-bindings/target/wasm32-wasi/debug/libldk.a $EXTRA_LINK
 167 else
 168         $COMPILE -o liblightningjs_release.wasm -s -Os -I"$1"/lightning-c-bindings/include/ ts/bindings.c "$1"/lightning-c-bindings/target/wasm32-wasi/release/libldk.a $EXTRA_LINK
 169 fi