Fix tvOS build

Author: filipnavara

src/coreclr/pal/src/configure.cmake

@@ -134,7 +134,11 @@ check_function_exists(statvfs HAVE_STATVFS)
 check_function_exists(thread_self HAVE_THREAD_SELF)
 check_function_exists(_lwp_self HAVE__LWP_SELF)
 check_function_exists(pthread_mach_thread_np HAVE_MACH_THREADS)
-check_function_exists(thread_set_exception_ports HAVE_MACH_EXCEPTIONS)
+if(CLR_CMAKE_TARGET_TVOS)
+  set(HAVE_MACH_EXCEPTIONS 0)
+else()
+  check_function_exists(thread_set_exception_ports HAVE_MACH_EXCEPTIONS)
+endif()
 check_function_exists(vm_allocate HAVE_VM_ALLOCATE)
 check_function_exists(vm_read HAVE_VM_READ)
 check_function_exists(directio HAVE_DIRECTIO)

src/coreclr/pal/src/exception/seh.cpp

@@ -305,7 +305,7 @@ PAL_ERROR SEHEnable(CPalThread *pthrCurrent)
 {
 #if HAVE_MACH_EXCEPTIONS
     return pthrCurrent->EnableMachExceptions();
-#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun)
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun) || defined(TARGET_TVOS)
     return NO_ERROR;
 #else// HAVE_MACH_EXCEPTIONS
 #error not yet implemented
@@ -330,7 +330,7 @@ PAL_ERROR SEHDisable(CPalThread *pthrCurrent)
 {
 #if HAVE_MACH_EXCEPTIONS
     return pthrCurrent->DisableMachExceptions();
-#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun)
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun) || defined(TARGET_TVOS)
     return NO_ERROR;
 #else // HAVE_MACH_EXCEPTIONS
 #error not yet implemented

src/coreclr/pal/src/exception/signal.cpp

@@ -182,7 +182,7 @@ BOOL SEHInitializeSignals(CorUnix::CPalThread *pthrCurrent, DWORD flags)
         handle_signal(SIGINT, sigint_handler, &g_previous_sigint, 0 /* additionalFlags */, true /* skipIgnored */);
         handle_signal(SIGQUIT, sigquit_handler, &g_previous_sigquit, 0 /* additionalFlags */, true /* skipIgnored */);
 
-#if HAVE_MACH_EXCEPTIONS
+#if HAVE_MACH_EXCEPTIONS || defined(TARGET_TVOS)
         handle_signal(SIGSEGV, sigsegv_handler, &g_previous_sigsegv);
 #else
         handle_signal(SIGTRAP, sigtrap_handler, &g_previous_sigtrap);
@@ -471,7 +471,15 @@ static void sigfpe_handler(int code, siginfo_t *siginfo, void *context)
     invoke_previous_action(&g_previous_sigfpe, code, siginfo, context);
 }
 
-#if !HAVE_MACH_EXCEPTIONS
+#if defined(TARGET_TVOS)
+
+static bool SwitchStackAndExecuteHandler(int code, siginfo_t *siginfo, void *context, size_t sp)
+{
+    // Not yet implemented
+    _exit(0xdead);
+}
+
+#elif !HAVE_MACH_EXCEPTIONS
 
 /*++
 Function :

src/coreclr/pal/src/include/pal/thread.hpp

@@ -588,7 +588,7 @@ namespace CorUnix
             m_pNext = pNext;
         };
 
-#if !HAVE_MACH_EXCEPTIONS
+#if !HAVE_MACH_EXCEPTIONS && !defined(TARGET_TVOS)
         BOOL
         EnsureSignalAlternateStack(
             void

src/coreclr/pal/src/init/sxs.cpp

@@ -64,7 +64,7 @@ AllocatePalThread(CPalThread **ppThread)
         goto exit;
     }
 
-#if !HAVE_MACH_EXCEPTIONS
+#if !HAVE_MACH_EXCEPTIONS && !defined(TARGET_TVOS)
     // Ensure alternate stack for SIGSEGV handling. Our SIGSEGV handler is set to
     // run on an alternate stack and the stack needs to be allocated per thread.
     if (!pThread->EnsureSignalAlternateStack())

src/coreclr/pal/src/misc/sysinfo.cpp

@@ -65,7 +65,7 @@ Revision History:
 #include <mach/mach_host.h>
 #endif // defined(TARGET_APPLE)
 
-#if !defined(TARGET_IOS)
+#if !defined(TARGET_IOS) && !defined(TARGET_TVOS)
 // On some platforms sys/user.h ends up defining _DEBUG; if so
 // remove the definition before including the header and put
 // back our definition afterwards
@@ -79,7 +79,7 @@ Revision History:
 #define _DEBUG OLD_DEBUG
 #undef OLD_DEBUG
 #endif
-#endif // !TARGET_IOS
+#endif // !TARGET_IOS && !TARGET_TVOS
 
 #include "pal/dbgmsg.h"
 #include "pal/process.h"

src/coreclr/pal/src/thread/process.cpp

@@ -545,6 +545,9 @@ CorUnix::InternalCreateProcess(
     LPPROCESS_INFORMATION lpProcessInformation
     )
 {
+#ifdef TARGET_TVOS
+    return ERROR_NOT_SUPPORTED;
+#else
     PAL_ERROR palError = NO_ERROR;
     IPalObject *pobjProcess = NULL;
     IPalObject *pobjProcessRegistered = NULL;
@@ -1081,6 +1084,7 @@ CorUnix::InternalCreateProcess(
     }
 
     return palError;
+#endif // !TARGET_TVOS
 }
 
 
@@ -2195,6 +2199,9 @@ PROCCreateCrashDump(
     INT cbErrorMessageBuffer,
     bool serialize)
 {
+#if defined(TARGET_IOS) || defined(TARGET_TVOS)
+    return FALSE;
+#else
     _ASSERTE(argv.size() > 0);
     _ASSERTE(errorMessageBuffer == nullptr || cbErrorMessageBuffer > 0);
 
@@ -2319,6 +2326,7 @@ PROCCreateCrashDump(
         }
     }
     return true;
+#endif // !TARGET_IOS && !TARGET_TVOS
 }
 
 /*++

src/coreclr/pal/src/thread/thread.cpp

@@ -173,7 +173,7 @@ static void InternalEndCurrentThreadWrapper(void *arg)
        will lock its own critical section */
     LOADCallDllMain(DLL_THREAD_DETACH, NULL);
 
-#if !HAVE_MACH_EXCEPTIONS
+#if !HAVE_MACH_EXCEPTIONS && !defined(TARGET_TVOS)
     pThread->FreeSignalAlternateStack();
 #endif // !HAVE_MACH_EXCEPTIONS
 
@@ -1683,7 +1683,7 @@ CPalThread::ThreadEntry(
     }
 #endif // HAVE_SCHED_GETAFFINITY && HAVE_SCHED_SETAFFINITY
 
-#if !HAVE_MACH_EXCEPTIONS
+#if !HAVE_MACH_EXCEPTIONS && !defined(TARGET_TVOS)
     if (!pThread->EnsureSignalAlternateStack())
     {
         ASSERT("Cannot allocate alternate stack for SIGSEGV!\n");
@@ -2406,7 +2406,7 @@ CPalThread::WaitForStartStatus(
     return m_fStartStatus;
 }
 
-#if !HAVE_MACH_EXCEPTIONS
+#if !HAVE_MACH_EXCEPTIONS && !defined(TARGET_TVOS)
 /*++
 Function :
     EnsureSignalAlternateStack

src/native/corehost/apphost/static/CMakeLists.txt

@@ -144,7 +144,6 @@ else()
 
         System.Globalization.Native-Static
         System.IO.Compression.Native-Static
-        System.Net.Security.Native-Static
         System.Native-Static
 
         palrt
@@ -155,6 +154,10 @@ else()
         nativeresourcestring
     )
 
+    if(NOT CLR_CMAKE_TARGET_TVOS)
+        LIST(APPEND NATIVE_LIBS System.Net.Security.Native-Static)
+    endif()
+
     if(NOT CLR_CMAKE_TARGET_MACCATALYST AND NOT CLR_CMAKE_TARGET_IOS AND NOT CLR_CMAKE_TARGET_TVOS AND NOT CLR_CMAKE_HOST_ANDROID)
         LIST(APPEND NATIVE_LIBS System.Security.Cryptography.Native.OpenSsl-Static)
     endif()

src/native/corehost/hostpolicy/hostpolicy_context.cpp

@@ -60,10 +60,12 @@ namespace
         // This function is only called with the library name specified for a p/invoke, not any variations.
         // It must handle exact matches to the names specified. See Interop.Libraries.cs for each platform.
 #if !defined(_WIN32)
+#if !defined(TARGET_TVOS)
         if (strcmp(library_name, LIB_NAME("System.Net.Security.Native")) == 0)
         {
             return SecurityResolveDllImport(entry_point_name);
         }
+#endif
 
         if (strcmp(library_name, LIB_NAME("System.Native")) == 0)
         {