From c98720506a9b9aa6e18ed7dbe448801d7d3c52a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= <remi@godotengine.org>
Date: Mon, 12 Jul 2021 14:40:28 +0200
Subject: [PATCH] Mono: Update to 6.12.0.147, adds Apple Silicon support

This is a Preview release of Mono, so we use `centos8-preview` packages which
correspond to its MSBuild version requirements (16.10.1).

For osxcross, we need to build compiler-rt to be able to link the new Apple
Silicon support code. See #83 for details.
Includes a backport of https://github.com/tpoechtrager/osxcross/pull/284 to
simplify the install process.

Actual macOS arm64 builds will be added in a follow-up commit.
---
 Dockerfile.ios                                |   2 +-
 Dockerfile.mono                               |   8 +-
 Dockerfile.osx                                |   4 +-
 build.sh                                      |   2 +-
 .../patches/osxcross-pr284-compiler-rt.patch  | 118 ++++++++++++++++++
 5 files changed, 127 insertions(+), 7 deletions(-)
 create mode 100644 files/patches/osxcross-pr284-compiler-rt.patch

diff --git a/Dockerfile.ios b/Dockerfile.ios
index bc20992..74344e9 100644
--- a/Dockerfile.ios
+++ b/Dockerfile.ios
@@ -61,7 +61,7 @@ RUN if [ -z "${mono_version}" ]; then echo -e "\n\nargument mono-version is mand
 
 # Until we can build the cross-compiler, we include a pre-made build in the container.
 RUN mkdir -p /root/aot-compilers/iphone-arm64 && \
-    curl -LO https://github.com/godotengine/godot-mono-builds/releases/download/release-df330ce/ios-cross-arm64.zip && \
+    curl -LO https://github.com/godotengine/godot-mono-builds/releases/download/release-c3a9d31/ios-cross-arm64.zip && \
     dnf -y install --setopt=install_weak_deps=False p7zip && \
     7za e ios-cross-arm64.zip ios-cross-arm64-release/bin/aarch64-apple-darwin-mono-sgen -o/root/aot-compilers/iphone-arm64 && \
     rm ios-cross-arm64.zip
diff --git a/Dockerfile.mono b/Dockerfile.mono
index d3bfaf5..10a635d 100644
--- a/Dockerfile.mono
+++ b/Dockerfile.mono
@@ -16,9 +16,9 @@ RUN if [ -z "${mono_version}" ]; then echo -e "\n\nargument mono-version is mand
     rm -rf /root/${mono_version} && \
     cert-sync /etc/pki/tls/certs/ca-bundle.crt && \
     rpm -ivh --nodeps \
-      https://download.mono-project.com/repo/centos8-stable/m/msbuild/msbuild-16.6+xamarinxplat.2021.01.15.16.11-0.xamarin.2.epel8.noarch.rpm \
-      https://download.mono-project.com/repo/centos8-stable/m/msbuild/msbuild-sdkresolver-16.6+xamarinxplat.2021.01.15.16.11-0.xamarin.2.epel8.noarch.rpm \
-      https://download.mono-project.com/repo/centos8-stable/m/msbuild-libhostfxr/msbuild-libhostfxr-3.0.0.2019.04.16.02.13-0.xamarin.4.epel8.x86_64.rpm \
-      https://download.mono-project.com/repo/centos8-stable/n/nuget/nuget-5.6.0.6489.bin-0.xamarin.1.epel8.noarch.rpm
+      https://download.mono-project.com/repo/centos8-preview/m/msbuild/msbuild-16.10.1+xamarinxplat.2021.05.26.14.00-0.xamarin.7.epel8.noarch.rpm \
+      https://download.mono-project.com/repo/centos8-preview/m/msbuild/msbuild-sdkresolver-16.10.1+xamarinxplat.2021.05.26.14.00-0.xamarin.7.epel8.noarch.rpm \
+      https://download.mono-project.com/repo/centos8-preview/m/msbuild-libhostfxr/msbuild-libhostfxr-3.0.0.2019.04.16.02.13-0.xamarin.4.epel8.x86_64.rpm \
+      https://download.mono-project.com/repo/centos8-preview/n/nuget/nuget-5.6.0.6489.bin-0.xamarin.1.epel8.noarch.rpm
 
 CMD /bin/bash
diff --git a/Dockerfile.osx b/Dockerfile.osx
index a53b22d..01ef0e7 100644
--- a/Dockerfile.osx
+++ b/Dockerfile.osx
@@ -10,7 +10,9 @@ RUN if [ -z "${mono_version}" ]; then echo -e "\n\nargument mono-version is mand
     cd /root/osxcross && \
     git checkout 447cf3b3ea4323d24648f5f7f775f5977a0d15bd && \
     ln -s /root/files/MacOSX11.1.sdk.tar.xz /root/osxcross/tarballs && \
-    UNATTENDED=1 ./build.sh
+    patch -p1 < /root/files/patches/osxcross-pr284-compiler-rt.patch && \
+    UNATTENDED=1 ./build.sh && \
+    ENABLE_COMPILER_RT_INSTALL=1 ./build_compiler_rt.sh
 
 ENV OSXCROSS_ROOT=/root/osxcross
 ENV PATH="/root/osxcross/target/bin:${PATH}"
diff --git a/build.sh b/build.sh
index 8853d96..f5ef6d6 100755
--- a/build.sh
+++ b/build.sh
@@ -97,7 +97,7 @@ if [ ! -e ${mono_root} ]; then
   # Set up godot-mono-builds in tree
   git clone --progress https://github.com/godotengine/godot-mono-builds
   pushd godot-mono-builds
-  git checkout df330ce0bec35836a33b97db27c1e72014571103
+  git checkout release/mono-6.12.0.147
   export MONO_SOURCE_ROOT=${mono_root}
   python3 patch_mono.py
   popd
diff --git a/files/patches/osxcross-pr284-compiler-rt.patch b/files/patches/osxcross-pr284-compiler-rt.patch
new file mode 100644
index 0000000..f38c283
--- /dev/null
+++ b/files/patches/osxcross-pr284-compiler-rt.patch
@@ -0,0 +1,118 @@
+From b875d7c1360c8ff2077463d7a5a12e1cff1cc683 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= <rverschelde@gmail.com>
+Date: Mon, 12 Jul 2021 13:34:32 +0200
+Subject: [PATCH] compiler-rt: Add option to automate install process
+
+Also mention that compiler-rt can be needed to build code using
+`__builtin_available()`.
+
+Fixes #278.
+---
+ README.COMPILER-RT.md |  4 ++++
+ README.md             |  3 +++
+ build_compiler_rt.sh  | 33 ++++++++++++++++++++++++---------
+ 3 files changed, 31 insertions(+), 9 deletions(-)
+
+diff --git a/README.COMPILER-RT.md b/README.COMPILER-RT.md
+index b2754dfcf..dced89686 100644
+--- a/README.COMPILER-RT.md
++++ b/README.COMPILER-RT.md
+@@ -10,6 +10,10 @@ Ensure you have finished `build.sh`,
+ 
+ then run: `./build_compiler_rt.sh`.
+ 
++By default, installation steps for compiler-rt will be printed to the terminal
++to run manually, but you can automate the installation process by defining
++`ENABLE_COMPILER_RT_INSTALL`.
++
+ You can verify compiler-rt is working by invoking the following command:
+ 
+     echo "int main(void){return 0;}" | xcrun clang -xc -o/dev/null -v - 2>&1 | \
+diff --git a/README.md b/README.md
+index 60d19f917..f32bf626c 100644
+--- a/README.md
++++ b/README.md
+@@ -33,6 +33,9 @@ It also includes scripts for optionally building
+ * the "compiler-rt" runtime library, and
+ * the `llvm-dsymutil` tool required for debugging.
+ 
++Note: The "compiler-rt" library can be needed to link code that uses the
++`__builtin_available()` runtime version check.
++
+ 
+ ### WHAT CAN BE BUILT WITH IT? ###
+ 
+diff --git a/build_compiler_rt.sh b/build_compiler_rt.sh
+index 8f47262a2..508742cab 100755
+--- a/build_compiler_rt.sh
++++ b/build_compiler_rt.sh
+@@ -182,22 +182,39 @@ fi
+ rm -f $BUILD_DIR/.compiler-rt_build_complete
+ 
+ 
++# Installation. Can be either automated (ENABLE_COMPILER_RT_INSTALL) or will
++# print the commands that the user should run manually.
++
++function print_or_run() {
++  if [ -z "$ENABLE_COMPILER_RT_INSTALL" ]; then
++    echo "$@"
++  else
++    $@
++  fi
++}
++
+ echo ""
+ echo ""
+ echo ""
+-echo "Please run the following commands by hand to install compiler-rt:"
++if [ -z "$ENABLE_COMPILER_RT_INSTALL" ]; then
++  echo "Please run the following commands by hand to install compiler-rt:"
++else
++  echo "Installing compiler-rt headers and libraries to the following paths:"
++  echo "  ${CLANG_INCLUDE_DIR}"
++  echo "  ${CLANG_DARWIN_LIB_DIR}"
++fi
+ echo ""
+ 
+-echo "mkdir -p ${CLANG_INCLUDE_DIR}"
+-echo "mkdir -p ${CLANG_DARWIN_LIB_DIR}"
+-echo "cp -rv $BUILD_DIR/compiler-rt/compiler-rt/include/sanitizer ${CLANG_INCLUDE_DIR}"
++print_or_run mkdir -p ${CLANG_INCLUDE_DIR}
++print_or_run mkdir -p ${CLANG_DARWIN_LIB_DIR}
++print_or_run cp -rv $BUILD_DIR/compiler-rt/compiler-rt/include/sanitizer ${CLANG_INCLUDE_DIR}
+ 
+ if [ $USE_CMAKE -eq 1 ]; then
+ 
+   ### CMAKE ###
+ 
+-  echo "cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.a ${CLANG_DARWIN_LIB_DIR}"
+-  echo "cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.dylib ${CLANG_DARWIN_LIB_DIR}"
++  print_or_run cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.a ${CLANG_DARWIN_LIB_DIR}
++  print_or_run cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.dylib ${CLANG_DARWIN_LIB_DIR}
+ 
+   ### CMAKE END ###
+ 
+@@ -209,7 +226,7 @@ else
+ 
+   function print_install_command() {
+     if [ -f "$1" ]; then
+-      echo "cp $PWD/compiler-rt/$1 ${CLANG_DARWIN_LIB_DIR}/$2"
++      print_or_run cp $PWD/compiler-rt/$1 ${CLANG_DARWIN_LIB_DIR}/$2
+     fi
+   }
+ 
+@@ -219,14 +236,12 @@ else
+   print_install_command "cc_kext/libcompiler_rt.a"     "libclang_rt.cc_kext.a"
+   print_install_command "profile_osx/libcompiler_rt.a" "libclang_rt.profile_osx.a"
+ 
+-
+   print_install_command "ubsan_osx_dynamic/libcompiler_rt.dylib" \
+     "libclang_rt.ubsan_osx_dynamic.dylib"
+ 
+   print_install_command "asan_osx_dynamic/libcompiler_rt.dylib" \
+     "libclang_rt.asan_osx_dynamic.dylib"
+ 
+-
+   popd &>/dev/null
+ 
+   ### MAKE END ###