From 4d832b5bc048cc44863b5e94f994afda14d5e9d6 Mon Sep 17 00:00:00 2001
From: dkimitsa <demyan.kimitsa@gmail.com>
Date: Sat, 1 Jul 2023 15:41:30 +0300
Subject: [PATCH] * XrOS support: separate set of native VM code have to build
 specially for xrOS/xrOS-simulator.

---
 compiler/vm/CMakeLists.txt | 47 ++++++++++++++++++++++++++++++++++++--
 compiler/vm/build.sh       |  9 ++++++--
 2 files changed, 52 insertions(+), 4 deletions(-)

diff --git a/compiler/vm/CMakeLists.txt b/compiler/vm/CMakeLists.txt
index e4904b1e3..9bb79472b 100755
--- a/compiler/vm/CMakeLists.txt
+++ b/compiler/vm/CMakeLists.txt
@@ -9,6 +9,8 @@ set(MACOSX_ARM64_MIN_VERSION 13.0)
 set(IOS_MIN_VERSION 8.0)
 # The minimum m1 Arm64 iOS simulator version needed by apps built by RoboVM
 set(IOS_ARM64_SIM_MIN_VERSION 14.0)
+# The minimum m1 Arm64 xrOS version needed by apps built by RoboVM
+set(XROS_MIN_VERSION 1.0)
 
 
 project(build)
@@ -96,6 +98,33 @@ elseif(OS STREQUAL "ios")
     message(FATAL_ERROR "Unsupported ARCH: ${ARCH}")
   endif()
   set(CPLATFORM_MIN_VERSION ${IOS_MIN_VERSION})
+elseif(OS STREQUAL "xros")
+  set(XROS YES)
+  set(DARWIN YES)
+  set(OS_FAMILY darwin)
+  if (ARCH STREQUAL "x86_64-simulator")
+    set(X86_64 YES)
+    set(64_BIT YES)
+    set(CTARGET "x86_64-apple-xros${XROS_MIN_VERSION}-simulator")
+    set(CARCH x86_64)
+    set(CPLATFORM xros-simulator)
+  elseif (ARCH STREQUAL "arm64-simulator")
+    set(ARM64 YES)
+    set(64_BIT YES)
+    set(CTARGET "arm64-apple-xros${XROS_MIN_VERSION}-simulator")
+    set(CARCH arm64)
+    set(CPLATFORM xros-simulator)
+  elseif (ARCH STREQUAL "arm64")
+    set(ARM YES)
+    set(ARM64 YES)
+    set(64_BIT YES)
+    set(CTARGET "arm64-apple-xros${XROS_MIN_VERSION}")
+    set(CARCH arm64)
+    set(CPLATFORM xros)
+  else()
+    message(FATAL_ERROR "Unsupported ARCH: ${ARCH}")
+  endif()
+  set(CPLATFORM_MIN_VERSION ${XROS_MIN_VERSION})
 else()
   message(FATAL_ERROR "Unsupported OS: ${OS}")
 endif()
@@ -121,9 +150,20 @@ if(DARWIN)
           message(FATAL_ERROR "Failed to locate iPhoneOS SDK")
         endif()
       endif()
+    elseif(XROS)
+      if(ARCH MATCHES "^(x86_64-simulator|arm64-simulator)$")
+        set(SYSROOT "${XCODE_PATH}/Platforms/XRSimulator.platform/Developer/SDKs/XRSimulator.sdk")
+        if(NOT IS_DIRECTORY ${SYSROOT})
+          message(FATAL_ERROR "Failed to locate XRSimulator SDK")
+        endif()
+      else()
+        set(SYSROOT "${XCODE_PATH}/Platforms/XROS.platform/Developer/SDKs/XROS.sdk")
+        if(NOT IS_DIRECTORY ${SYSROOT})
+          message(FATAL_ERROR "Failed to locate XROS.sdk SDK")
+        endif()
+      endif()
     endif()
   endif()
-  set(CPLATFORM_MIN_VERSION ${IOS_MIN_VERSION})
 else()
   message(FATAL_ERROR "Unsupported OS: ${OS}")
 endif()
@@ -195,6 +235,9 @@ if(IOS)
     set(ASM_FLAGS "${ASM_FLAGS} -fembed-bitcode")
   endif()
 endif()
+if(XROS)
+  set(ASM_FLAGS "${ASM_FLAGS} -target ${CTARGET}")
+endif()
 set(CMAKE_ASM_COMPILE_OBJECT "${CMAKE_C_COMPILER} ${ASM_FLAGS} -o <OBJECT> <SOURCE>")
 enable_language(ASM)
 
@@ -271,7 +314,7 @@ if (CMAKE_BUILD_TYPE STREQUAL "debug")
   set(EXTGC_C_FLAGS "${EXTGC_C_FLAGS} -g")
   set(EXTGC_PARAMS "${EXTGC_PARAMS} --enable-gc-debug=yes")
 endif()
-if (IOS OR MACOSX)
+if (IOS OR MACOSX OR XROS)
   if (ARCH STREQUAL "x86_64")
     set(EXT_HOST --host=x86_64-apple-darwin7)
   elseif (ARCH STREQUAL "arm64-simulator")
diff --git a/compiler/vm/build.sh b/compiler/vm/build.sh
index 855fead39..a5d5bf737 100755
--- a/compiler/vm/build.sh
+++ b/compiler/vm/build.sh
@@ -21,6 +21,8 @@ Options:
                              ios-arm64-simulator
                           Linux:
                              linux-x86_64
+                          xrOS:
+                             xros-arm64, xros-arm64-simulator, xros-x86_64-simulator
                           Enclose multiple targets in quotes and 
                           separate with spaces or specify --target multiple
                           times. If not set the current host OS determines the
@@ -58,7 +60,7 @@ if [ "x$TARGETS" = 'x' ]; then
   OS=$(uname)
   case $OS in
   Darwin)
-    TARGETS="macosx-x86_64 macosx-arm64 ios-x86_64-simulator ios-arm64-simulator ios-thumbv7 ios-arm64"
+    TARGETS="macosx-x86_64 macosx-arm64 ios-x86_64-simulator ios-arm64-simulator ios-thumbv7 ios-arm64 xros-x86_64-simulator xros-arm64-simulator xros-arm64"
     ;;
   Linux)
     TARGETS="linux-x86_64"
@@ -75,7 +77,7 @@ fi
 
 # Validate targets
 for T in $TARGETS; do
-  if ! [[ $T =~ (macosx-(x86_64|arm64))|(ios-(x86_64-simulator|arm64-simulator|thumbv7|arm64))|(linux-(x86_64)) ]] ; then
+  if ! [[ $T =~ (macosx-(x86_64|arm64))|(ios-(x86_64-simulator|arm64-simulator|thumbv7|arm64))|(xros-(x86_64-simulator|arm64-simulator|arm64))|(linux-(x86_64)) ]] ; then
     echo "Unsupported target: $T"
     exit 1
   fi
@@ -125,6 +127,9 @@ for T in $TARGETS; do
   ios)
     SYSTEM_NAME_PARAM="-DCMAKE_SYSTEM_NAME=iOS"
     ;;
+  xros)
+    SYSTEM_NAME_PARAM="-DCMAKE_SYSTEM_NAME=Darwin"
+    ;;
   *)
     SYSTEM_NAME_PARAM=""
     ;;