From ff2072bafc807adf5effcaa846193c6020253a7a Mon Sep 17 00:00:00 2001
From: Adeel <3840695+am11@users.noreply.github.com>
Date: Mon, 19 Jul 2021 07:29:47 +0300
Subject: [PATCH] Fix mono build on illumos

---
 src/mono/CMakeLists.txt           |  8 ++++++++
 src/mono/cmake/configure.cmake    | 13 ++++++++++++-
 src/mono/mono.proj                |  7 +++++++
 src/mono/mono/mini/CMakeLists.txt |  4 +++-
 4 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/mono/CMakeLists.txt b/src/mono/CMakeLists.txt
index 4c25d97b7a5d93..e7a494c22cc8cd 100644
--- a/src/mono/CMakeLists.txt
+++ b/src/mono/CMakeLists.txt
@@ -252,6 +252,9 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
     add_compile_options(/GL) # whole program optimization
     add_link_options(/LTCG)  # link-time code generation
   endif()
+elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
+  set(HOST_SOLARIS 1)
+  add_definitions(-DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DHOST_SOLARIS -D__EXTENSIONS__ -D_XPG4_2)
 else()
   message(FATAL_ERROR "Host '${CMAKE_SYSTEM_NAME}' not supported.")
 endif()
@@ -290,6 +293,8 @@ elseif(TARGET_SYSTEM_NAME STREQUAL "Emscripten")
   endif()
 elseif(TARGET_SYSTEM_NAME STREQUAL "Windows")
   set(TARGET_WIN32 1)
+elseif(TARGET_SYSTEM_NAME STREQUAL "SunOS")
+  set(TARGET_SOLARIS 1)
 else()
   message(FATAL_ERROR "Target '${TARGET_SYSTEM_NAME}' not supported.")
 endif()
@@ -589,6 +594,9 @@ elseif(HOST_LINUX)
 elseif(HOST_WIN32)
   set(ICU_FLAGS "-DTARGET_WINDOWS -DPALEXPORT=EXTERN_C")
   set(HAVE_SYS_ICU 1)
+elseif(HOST_SOLARIS)
+  set(ICU_FLAGS "-DPALEXPORT=\"\" -DTARGET_UNIX -Wno-reserved-id-macro -Wno-documentation -Wno-documentation-unknown-command -Wno-switch-enum -Wno-covered-switch-default -Wno-extra-semi-stmt -Wno-unknown-warning-option")
+  set(HAVE_SYS_ICU 1)
 else()
   message(FATAL_ERROR "Unknown host")
 endif()
diff --git a/src/mono/cmake/configure.cmake b/src/mono/cmake/configure.cmake
index 34fa15f556caf9..b3d3f47c894e0b 100644
--- a/src/mono/cmake/configure.cmake
+++ b/src/mono/cmake/configure.cmake
@@ -16,6 +16,10 @@ if(C_SUPPORTS_WUNGUARDED_AVAILABILITY)
   set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror=unguarded-availability")
 endif()
 
+if(HOST_SOLARIS)
+  set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DHOST_SOLARIS -D__EXTENSIONS__ -D_XPG4_2")
+endif()
+
 function(ac_check_headers)
   foreach(arg ${ARGN})
 	check_include_file ("${arg}" FOUND_${arg})
@@ -66,7 +70,7 @@ ac_check_headers (
 
 ac_check_funcs (
   sigaction kill clock_nanosleep kqueue backtrace_symbols mkstemp mmap
-  madvise getrusage dladdr sysconf getrlimit prctl nl_langinfo
+  getrusage dladdr sysconf getrlimit prctl nl_langinfo
   sched_getaffinity sched_setaffinity getpwuid_r readlink chmod lstat getdtablesize ftruncate msync
   getpeername utime utimes openlog closelog atexit popen strerror_r inet_pton inet_aton
   shm_open poll getfsstat mremap posix_fadvise vsnprintf sendfile statfs statvfs setpgid system
@@ -89,6 +93,7 @@ ac_check_funcs(
   pthread_attr_setstacksize pthread_get_stackaddr_np
 )
 
+check_symbol_exists(madvise "sys/mman.h" HAVE_MADVISE)
 check_symbol_exists(pthread_mutexattr_setprotocol "pthread.h" HAVE_DECL_PTHREAD_MUTEXATTR_SETPROTOCOL)
 check_symbol_exists(CLOCK_MONOTONIC "time.h" HAVE_CLOCK_MONOTONIC)
 check_symbol_exists(CLOCK_MONOTONIC_COARSE "time.h" HAVE_CLOCK_MONOTONIC_COARSE)
@@ -164,3 +169,9 @@ endif()
 if(HOST_BROWSER)
   set(HAVE_FORK 0)
 endif()
+
+if(HOST_SOLARIS)
+  set(HAVE_GETPROTOBYNAME 1)
+  set(HAVE_NETINET_TCP_H 1)
+  set(HAVE_GETADDRINFO 1)
+endif()
diff --git a/src/mono/mono.proj b/src/mono/mono.proj
index a329c0ac299401..8b1fb3b13a4ed3 100644
--- a/src/mono/mono.proj
+++ b/src/mono/mono.proj
@@ -229,6 +229,13 @@
       <_MonoBuildEnv Condition="'$(Platform)' == 'arm'" Include="PKG_CONFIG_PATH=$(MonoCrossDir)/usr/lib/arm-linux-gnueabihf/pkgconfig" />
     </ItemGroup>
 
+    <!-- x64 illumos cross build options -->
+    <ItemGroup Condition="'$(TargetsIllumos)' == 'true' and '$(MonoCrossDir)' != ''">
+      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$([MSBuild]::NormalizePath('$(RepositoryEngineeringDir)', 'common', 'cross', 'toolchain.cmake'))" />
+      <_MonoBuildEnv Include="TARGET_BUILD_ARCH=x64" />
+      <_MonoBuildEnv Include="PKG_CONFIG_PATH=$(MonoCrossDir)/lib/pkgconfig" />
+    </ItemGroup>
+
     <!-- s390x Linux cross build options -->
     <ItemGroup Condition="'$(MonoCrossDir)' != '' and '$(TargetArchitecture)' == 's390x'">
       <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$([MSBuild]::NormalizePath('$(RepositoryEngineeringDir)', 'common', 'cross', 'toolchain.cmake'))" />
diff --git a/src/mono/mono/mini/CMakeLists.txt b/src/mono/mono/mini/CMakeLists.txt
index 841bff5f566cf9..b07e58569160c2 100644
--- a/src/mono/mono/mini/CMakeLists.txt
+++ b/src/mono/mono/mini/CMakeLists.txt
@@ -33,6 +33,8 @@ elseif(HOST_LINUX)
 set(OS_LIBS pthread m dl)
 elseif(HOST_WIN32)
 set(OS_LIBS bcrypt.lib Mswsock.lib ws2_32.lib psapi.lib version.lib advapi32.lib winmm.lib kernel32.lib)
+elseif(HOST_SOLARIS)
+  set(OS_LIBS socket pthread m ${CMAKE_DL_LIBS})
 endif()
 
 #
@@ -253,7 +255,7 @@ set(posix_sources
 
 if(HOST_DARWIN)
 set(os_sources "${darwin_sources};${posix_sources}")
-elseif(HOST_LINUX)
+elseif(HOST_LINUX OR HOST_SOLARIS)
 set(os_sources "${posix_sources}")
 elseif(HOST_WIN32)
 set(os_sources "${windows_sources}")