Add arch data for cross-compiling to CORE2

for #2235

cmake/prebuild.cmake

@@ -106,7 +106,25 @@ if (DEFINED CORE AND CMAKE_CROSSCOMPILING AND NOT (${HOST_OS} STREQUAL "WINDOWSS
   file(APPEND ${TARGET_CONF_TEMP}
     "#define ${TCORE}\n"
     "#define CHAR_CORENAME \"${TCORE}\"\n")
-  if ("${TCORE}" STREQUAL "ARMV7")
+  if ("${TCORE}" STREQUAL "CORE2")
+    file(APPEND ${TARGET_CONF_TEMP}
+      "#define L1_DATA_SIZE\t32768\n"
+      "#define L1_DATA_LINESIZE\t64\n"
+      "#define L2_SIZE\t1048576\n"
+      "#define L2_LINESIZE\t64\n"
+      "#define DTB_DEFAULT_ENTRIES\t256\n"
+      "#define DTB_SIZE\t4096\n"
+      "#define HAVE_CMOV\n"
+      "#define HAVE_MMX\n"
+      "#define HAVE_SSE\n"
+      "#define HAVE_SSE2\n"
+      "#define HAVE_SSE3\n"
+      "#define HAVE_SSSE3\n")
+      set(SGEMM_UNROLL_M 8)
+      set(SGEMM_UNROLL_N 4)
+      set(DGEMM_UNROLL_M 4)
+      set(DGEMM_UNROLL_N 4)
+  elseif ("${TCORE}" STREQUAL "ARMV7")
     file(APPEND ${TARGET_CONF_TEMP}
       "#define L1_DATA_SIZE\t65536\n"
       "#define L1_DATA_LINESIZE\t32\n"