10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP
26 #define CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP
27
28 const int StackAlignmentInBytes = 16;
29
30 // Indicates whether the C calling conventions require that
31 // 32-bit integer argument values are properly extended to 64 bits.
32 // If set, SharedRuntime::c_calling_convention() must adapt
33 // signatures accordingly.
34 const bool CCallingConventionRequiresIntsAsLongs = false;
35
36 #define SUPPORTS_NATIVE_CX8
37
38 // The expected size in bytes of a cache line, used to pad data structures.
39 #if defined(TIERED)
40 #ifdef _LP64
41 // tiered, 64-bit, large machine
42 #define DEFAULT_CACHE_LINE_SIZE 128
43 #else
44 // tiered, 32-bit, medium machine
45 #define DEFAULT_CACHE_LINE_SIZE 64
46 #endif
47 #elif defined(COMPILER1)
48 // pure C1, 32-bit, small machine
49 // i486 was the last Intel chip with 16-byte cache line size
50 #define DEFAULT_CACHE_LINE_SIZE 32
51 #elif defined(COMPILER2) || defined(SHARK)
52 #ifdef _LP64
53 // pure C2, 64-bit, large machine
54 #define DEFAULT_CACHE_LINE_SIZE 128
55 #else
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP
26 #define CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP
27
28 const int StackAlignmentInBytes = 16;
29
30 #define SUPPORTS_NATIVE_CX8
31
32 // The expected size in bytes of a cache line, used to pad data structures.
33 #if defined(TIERED)
34 #ifdef _LP64
35 // tiered, 64-bit, large machine
36 #define DEFAULT_CACHE_LINE_SIZE 128
37 #else
38 // tiered, 32-bit, medium machine
39 #define DEFAULT_CACHE_LINE_SIZE 64
40 #endif
41 #elif defined(COMPILER1)
42 // pure C1, 32-bit, small machine
43 // i486 was the last Intel chip with 16-byte cache line size
44 #define DEFAULT_CACHE_LINE_SIZE 32
45 #elif defined(COMPILER2) || defined(SHARK)
46 #ifdef _LP64
47 // pure C2, 64-bit, large machine
48 #define DEFAULT_CACHE_LINE_SIZE 128
49 #else
|