From 12f746b391432b2c95a2f9e7f7c6e98a4ed2bec0 Mon Sep 17 00:00:00 2001
From: jahway603 <jahway603@protonmail.com>
Date: Thu, 27 Apr 2023 21:06:10 -0400
Subject: [PATCH] build script to xcompile ARM64 (aarch64)

---
 util/README.md             |   5 ++
 util/build-arm-xcompile.sh | 139 +++++++++++++++++++++++++++++++++++++
 2 files changed, 144 insertions(+)
 create mode 100755 util/build-arm-xcompile.sh

diff --git a/util/README.md b/util/README.md
index 0c7408f4d..d11b0e02f 100644
--- a/util/README.md
+++ b/util/README.md
@@ -12,6 +12,11 @@ Compile Hush full node code.
 ## build-arm.sh
 
 Compile Hush full node code for ARM architecture.
+**has not worked for some time**
+
+## build-arm-xcompile.sh
+
+Cross-Compile Hush full node code for ARM architecture on an x86 build server.
 
 ## build-debian-package.sh
 
diff --git a/util/build-arm-xcompile.sh b/util/build-arm-xcompile.sh
new file mode 100755
index 000000000..6be684464
--- /dev/null
+++ b/util/build-arm-xcompile.sh
@@ -0,0 +1,139 @@
+#!/usr/bin/env bash
+# Copyright (c) 2016-2023 The Hush developers
+# Distributed under the GPLv3 software license, see the accompanying
+# file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
+
+# For use with https://git.hush.is/jahway603/hush-docs/src/branch/master/advanced/cross-compile-hush-full-node-to-aarch64-with-docker.md,
+# Please follow that
+set -eu -o pipefail
+
+# Check if cmake, a new dependency for randomx support, is installed on system and exits if it is not
+if ! [ -x "$(command -v cmake)" ]; then
+  echo 'Error: cmake is not installed. Install cmake and try again.' >&2
+  exit 1
+fi
+
+function cmd_pref() {
+    if type -p "$2" > /dev/null; then
+        eval "$1=$2"
+    else
+        eval "$1=$3"
+    fi
+}
+cat <<'EOF'
+ .~~~~~~~~~~~~~~~~.
+{{ Building Hush!! }}
+ `~~~~~~~~~~~~~~~~`
+        \   ^__^
+         \  (@@)\_______            
+            (__)\ HUSH  )\/\      $
+    z        zz ||----w |      z  |
+zz  zz  z       || z   ||xxx   z z|z zz
+zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
+zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
+EOF
+
+# If a g-prefixed version of the command exists, use it preferentially.
+function gprefix() {
+    cmd_pref "$1" "g$2" "$2"
+}
+
+gprefix READLINK readlink
+cd "$(dirname "$("$READLINK" -f "$0")")/.."
+
+# Allow user overrides to $MAKE. Typical usage for users who need it:
+#   MAKE=gmake ./util/build.sh -j$(nproc)
+if [[ -z "${MAKE-}" ]]; then
+    MAKE=make
+fi
+
+# Allow overrides to $BUILD and $HOST for porters. Most users will not need it.
+#   BUILD=i686-pc-linux-gnu ./util/build.sh
+if [[ -z "${BUILD-}" ]]; then
+    BUILD="$(./depends/config.guess)"
+fi
+if [[ -z "${HOST-}" ]]; then
+    HOST="$BUILD"
+fi
+
+# Allow users to set arbitrary compile flags. Most users will not need this.
+if [[ -z "${CONFIGURE_FLAGS-}" ]]; then
+    CONFIGURE_FLAGS=""
+fi
+
+if [ "x$*" = 'x--help' ]
+then
+    cat ./util/dragon.txt
+    cat <<EOF
+Welcome To The Hush Build System, Here Be Dragons!
+Usage:
+$0 --help
+  Show this help message and exit.
+$0 [ --enable-lcov || --disable-tests ] [ --disable-mining ] [ --disable-libs ] [ MAKEARGS... ]
+  Build Hush and most of its transitive dependencies from source. MAKEARGS are applied to both dependencies and Hush itself.
+  If --enable-lcov is passed, Hush is configured to add coverage instrumentation, thus enabling "make cov" to work.
+  If --disable-tests is passed instead, the Hush tests are not built.
+  If --disable-mining is passed, Hush is configured to not build any mining code. It must be passed after the test arguments, if present.
+  It must be passed after the test/mining arguments, if present.
+EOF
+    exit 0
+fi
+
+set -x
+
+# If --enable-lcov is the first argument, enable lcov coverage support:
+LCOV_ARG=''
+HARDENING_ARG='--enable-hardening'
+TEST_ARG=''
+if [ "x${1:-}" = 'x--enable-lcov' ]
+then
+    LCOV_ARG='--enable-lcov'
+    HARDENING_ARG='--disable-hardening'
+    shift
+elif [ "x${1:-}" = 'x--disable-tests' ]
+then
+    TEST_ARG='--enable-tests=no'
+    shift
+fi
+
+# If --disable-mining is the next argument, disable mining code:
+MINING_ARG=''
+if [ "x${1:-}" = 'x--disable-mining' ]
+then
+    MINING_ARG='--enable-mining=no'
+    shift
+fi
+
+# Just show the useful info
+eval "$MAKE" --version | head -n2
+as --version | head -n1
+as --version | tail -n1
+ld -v
+
+HOST="$HOST" BUILD="$BUILD" "$MAKE" "$@" -C ./depends/ V=1
+
+./autogen.sh
+
+CONFIG_SITE="$PWD/depends/$HOST/share/config.site" ./configure "$HARDENING_ARG" "$LCOV_ARG" "$TEST_ARG" "$MINING_ARG" $CONFIGURE_FLAGS CXXFLAGS='-g'
+
+# Build CryptoConditions stuff
+WD=$PWD
+cd src/cc
+echo $PWD
+./makecustom
+cd $WD
+
+# Build RandomX
+cd src/RandomX
+if [ -d "build" ]
+then
+    ls -la build/librandomx*
+else
+    mkdir build && cd build
+    cmake -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc -DCMAKE_CXX_COMPILER=aarch64-linux-gnu-g++ -DCMAKE_STRIP=/usr/bin/aarch64-linux-gnu-strip -DARCH_ID=aarch64 ..
+    make
+fi
+
+cd $WD
+
+"$MAKE" "$@" V=1