[compiler-rt] ubsan/asan illumos linkage fix

[devnexen]

Summary

• No support for --version-script flag thus making it conditional

[ro]

This is wrong: LLVM_LINKER_IS_SOLARISLD is YES on Solaris 11.4 (supports both --version-script and -z gnu-version-script-compat),
Solaris 11.3 and Illumos (support neither), so this disables --version-script on Solaris 11.4.

I've just submitted D84559 which handles all cases correctly.

compiler-rt/lib/asan/CMakeLists.txt

add_compiler_rt_runtime(clang_rt.asan-preinit
     DEFS ${ASAN_COMMON_DEFINITIONS}
     PARENT_TARGET asan)
 
   foreach(arch ${ASAN_SUPPORTED_ARCH})
     if (UNIX)
       add_sanitizer_rt_version_list(clang_rt.asan-dynamic-${arch}
                                     LIBS clang_rt.asan-${arch} clang_rt.asan_cxx-${arch}
                                     EXTRA asan.syms.extra)
+      if (NOT ${LLVM_LINKER_IS_SOLARISLD})
         set(VERSION_SCRIPT_FLAG
             -Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/clang_rt.asan-dynamic-${arch}.vers)
         # The Solaris 11.4 linker supports a subset of GNU ld version scripts,
         # but requires a special option to enable it.
         if (OS_NAME MATCHES "SunOS")
           list(APPEND VERSION_SCRIPT_FLAG -Wl,-z,gnu-version-script-compat)
         endif()
+      endif()
       set_property(SOURCE
         ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
         APPEND PROPERTY
         OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/clang_rt.asan-dynamic-${arch}.vers)
     else()
       set(VERSION_SCRIPT_FLAG)
     endif()
 

compiler-rt/lib/ubsan/CMakeLists.txt

if (FUCHSIA OR UNIX)
         SOURCES ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
         CFLAGS ${UBSAN_CFLAGS})
 
       foreach(arch ${UBSAN_SUPPORTED_ARCH})
         add_sanitizer_rt_version_list(clang_rt.ubsan_standalone-dynamic-${arch}
                                       LIBS clang_rt.ubsan_standalone-${arch}
                                            clang_rt.ubsan_standalone_cxx-${arch}
                                       EXTRA ubsan.syms.extra)
+  if (NOT ${LLVM_LINKER_IS_SOLARISLD})
           set(VERSION_SCRIPT_FLAG
               -Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/clang_rt.ubsan_standalone-dynamic-${arch}.vers)
           # The Solaris 11.4 linker supports a subset of GNU ld version scripts,
           # but requires a special option to enable it.
           if (OS_NAME MATCHES "SunOS")
             list(APPEND VERSION_SCRIPT_FLAG -Wl,-z,gnu-version-script-compat)
           endif()
+  endif()
         set_property(SOURCE
           ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
           APPEND PROPERTY
           OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/clang_rt.ubsan_standalone-dynamic-${arch}.vers)
 
         add_compiler_rt_runtime(clang_rt.ubsan_standalone
           SHARED
           ARCHS ${arch}