Add incomplete support for building for ARM arch

Dockerfile.arm

@@ -0,0 +1,37 @@
+FROM jetbrains/teamcity-minimal-agent:latest
+
+# Set to 1 to configure this image as Teamcity build agent
+# Default value is 0 (manual build)
+ENV AS_BUILDAGENT=0
+
+# Set this to the target arm architecture: arm64 or armhf
+ENV BUILD_ARCHITECTURE=arm64
+
+# Set this to the target build configuration
+ENV BUILD_CONFIG=release
+
+# This is important for using apt-get
+USER root
+
+# Add architecture support for armhf and arm64
+COPY utils/arm-cross-compile-sources.list /etc/apt/sources.list.d/
+
+RUN sed -i 's/deb http/deb \[arch=amd64,i386\] http/' /etc/apt/sources.list && \
+    dpkg --add-architecture arm64 && \
+    dpkg --add-architecture armhf && \
+    apt-get update && \
+    apt-get install -y make git \
+        gcc-10-arm-linux-gnueabihf g++-10-arm-linux-gnueabihf \
+        libncursesw5:armhf libncursesw5-dev:armhf \
+        gcc-10-aarch64-linux-gnu g++-10-aarch64-linux-gnu \
+        libncursesw5:arm64 libncursesw5-dev:arm64 libmysqlclient-dev:arm64
+
+# Set build directory
+VOLUME /build
+WORKDIR /build
+
+# Copy entrypoint script
+COPY utils/docker-entrypoint-arm.sh /docker-entrypoint.sh
+
+# Set entrypoint
+ENTRYPOINT bash /docker-entrypoint.sh

linux-build-arm.sh

@@ -0,0 +1,55 @@
+#!/bin/bash -e
+
+BUILD_ARCHITECTURE=arm64
+BUILD_CONFIG=release
+NUM_CORES=$(grep -c ^processor /proc/cpuinfo)
+
+while [ $# -gt 0 ]; do
+    case "$1" in
+        --arch=*)
+            BUILD_ARCHITECTURE="${1#*=}"
+        ;;
+        --config=*)
+            BUILD_CONFIG="${1#*=}"
+        ;;
+        *)
+            printf "Error: Invalid argument: $1\n"
+            exit 1
+    esac
+    shift
+done
+
+echo "BUILD_ARCHITECTURE = $BUILD_ARCHITECTURE"
+echo "BUILD_CONFIG = $BUILD_CONFIG"
+
+case $BUILD_ARCHITECTURE in
+    arm64)
+        GCC_PREFIX=aarch64-linux-gnu-
+    ;;
+    armhf)
+        GCC_PREFIX=arm-linux-gnueabihf-
+    ;;
+    *)
+        printf "Error: Invalid build architecture\n"
+        exit 1
+esac
+
+echo "GCC_PREFIX = $GCC_PREFIX"
+
+# Clean old build files
+rm -Rf Build/
+rm -Rf Bin/
+
+# Generate makefiles
+utils/premake5 --arch=$BUILD_ARCHITECTURE --gccprefix=$GCC_PREFIX gmake
+
+# Remove -m32, -m64, -msse2 from *FLAGS
+sed -i '/FLAGS +=/ s/-m32//i;/FLAGS +=/ s/-msse2//i;/FLAGS +=/ s/-m64//i' Build/*.make
+
+# Build!
+make -C Build/ -j $NUM_CORES \
+    AR=/bin/${GCC_PREFIX}ar \
+    CC=/bin/${GCC_PREFIX}gcc-10 \
+    CXX=/bin/${GCC_PREFIX}g++-10 \
+    config=debug_x64 \
+    all

premake5.lua

@@ -15,6 +15,29 @@ else
 end
 GLIBC_COMPAT = os.getenv("GLIBC_COMPAT") == "true"
 
+-- Cross-building options
+newoption {
+	trigger = "arch",
+	value = "ARCHITECTURE",
+	description = "Choose a particular target architecture for building",
+	allowed = {
+		{ "host", "Host architecture" },
+		{ "armhf", "ARM hard-float" },
+		{ "arm64", "64-bit ARM" }
+	},
+	default = "host"
+}
+
+newoption {
+	trigger     = "gccprefix",
+	value       = "PREFIX",
+	description = "Prefix to be prepended to commands used by the GCC toolchain (for cross-building)"
+}
+
+if _OPTIONS["gccprefix"] then
+	gccprefix(_OPTIONS["gccprefix"])
+end
+
 workspace "MTASA"
 	configurations {"Debug", "Release", "Nightly"}
 

utils/arm-cross-compile-sources.list

@@ -0,0 +1,7 @@
+deb [arch=armhf,arm64] http://ports.ubuntu.com/ focal main restricted
+deb [arch=armhf,arm64] http://ports.ubuntu.com/ focal-updates main restricted
+deb [arch=armhf,arm64] http://ports.ubuntu.com/ focal universe
+deb [arch=armhf,arm64] http://ports.ubuntu.com/ focal-updates universe
+deb [arch=armhf,arm64] http://ports.ubuntu.com/ focal multiverse
+deb [arch=armhf,arm64] http://ports.ubuntu.com/ focal-updates multiverse
+deb [arch=armhf,arm64] http://ports.ubuntu.com/ focal-backports main restricted universe multiverse

utils/docker-entrypoint-arm.sh

@@ -0,0 +1,21 @@
+#!/bin/bash -e
+
+# If configured as a build agent, we start the TeamCity agent
+if [[ $AS_BUILDAGENT = "1" ]]; then
+    # https://github.com/JetBrains/teamcity-docker-minimal-agent/blob/master/Dockerfile#L17
+    exec /run-services.sh
+fi
+
+# Manually invoke build process
+umask 000
+if [ ! -f ./premake5.lua ]; then
+    git clone --depth=1 https://github.com/multitheftauto/mtasa-blue.git .
+fi
+
+# Set the default build target
+if [ -z "$BUILD_CONFIG" ]; then
+    BUILD_CONFIG=release
+fi
+
+# Start manual building
+./linux-build-arm.sh --arch=$BUILD_ARCHITECTURE --config=$BUILD_CONFIG

vendor/cryptopp/premake5.lua

@@ -206,6 +206,9 @@ project "cryptopp"
 	filter "system:macosx"
 		defines {"CRYPTOPP_DISABLE_ASM"}
 
+	filter { "options:arch=arm*" }
+		defines { "CRYPTOPP_DISABLE_ASM" }
+
 	filter "platforms:x64"
 		files {
 			"x64dll.asm",