'Generic Commit'

src/dropshell-build-install-requirements

@@ -163,6 +163,43 @@ function install_packages() {
 #     fi
 # }
 
+#----------------------------------------------------------------------------------------------------------
+# unwind for musl cross toolchains
+#----------------------------------------------------------------------------------------------------------
+
+function install_unwind_musl() {
+    local FULLARCH="$1"
+    local ARCH="${FULLARCH%%-*}"
+    local ARCH_SHORT_PREFIX="${FULLARCH%-*}"
+    local MUSL_PATH="${INSTALL_DIR}/${FULLARCH}"
+    [ -d "$MUSL_PATH" ] || _die "MUSL_PATH does not exist: $MUSL_PATH"
+
+    local BUILD_DIR="${SCRIPT_DIR}/build.$ARCH"
+    PREVDIR="$PWD"
+    rm -rf "$BUILD_DIR"
+    mkdir -p "$BUILD_DIR"
+    cd "$BUILD_DIR"
+
+    local SYSROOT="$MUSL_PATH/${ARCH_SHORT_PREFIX}/sysroot"
+
+    LIBPATH="$MUSL_PATH/${ARCH_SHORT_PREFIX}/sysroot/usr/lib"
+    [ -d "$LIBPATH" ] || LIBPATH="$MUSL_PATH/${ARCH_SHORT_PREFIX}/sysroot/usr/lib64"
+    if [ -f "$LIBPATH/libunwind.a" ]; then
+        echo "Unwind $ARCH is already installed"
+        return
+    fi
+
+    # download and install unwind
+    git clone https://github.com/libunwind/libunwind.git
+    cd libunwind
+    autoreconf -i
+    ./configure --enable-static --disable-minidebuginfo --disable-zlibdebuginfo
+    make -j
+    ${SUDOCMD:-} make install
+
+    cd "$PREVDIR"
+    rm -rf "$BUILD_DIR"
+}
 
 #----------------------------------------------------------------------------------------------------------
 # OpenSSL for musl cross toolchains
@@ -251,6 +288,8 @@ function install_openssl_musl() {
         echo
     fi
 
+    rm -rf "$BUILD_DIR"
+
     cd "$PREVDIR"
 
     echo "OpenSSL built and installed for $FULLARCH"
@@ -310,6 +349,7 @@ function install_musl() {
         check_path "$TOOLCHAIN"
 
         install_openssl_musl "$TOOLCHAIN"
+        install_unwind_musl "$TOOLCHAIN"
     done
 
     # Clean up