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 SHARE_VM_CODE_LOCATION_HPP
26 #define SHARE_VM_CODE_LOCATION_HPP
27
28 #include "asm/assembler.hpp"
29 #include "code/vmreg.hpp"
30 #include "memory/allocation.hpp"
31
32 // A Location describes a concrete machine variable location
33 // (such as integer or floating point register or a stack-held
34 // variable). Used when generating debug-information for nmethods.
35 //
36 // Encoding:
37 //
38 // bits (use low bits for best compression):
39 // Type: [3..0]
40 // Where: [4]
41 // Offset: [31..5]
42
43 class Location {
44 friend class VMStructs;
45 public:
46 enum Where {
47 on_stack,
48 in_register
49 };
50
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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 SHARE_VM_CODE_LOCATION_HPP
26 #define SHARE_VM_CODE_LOCATION_HPP
27
28 #include "asm/assembler.hpp"
29 #include "code/vmreg.hpp"
30
31 // A Location describes a concrete machine variable location
32 // (such as integer or floating point register or a stack-held
33 // variable). Used when generating debug-information for nmethods.
34 //
35 // Encoding:
36 //
37 // bits (use low bits for best compression):
38 // Type: [3..0]
39 // Where: [4]
40 // Offset: [31..5]
41
42 class Location {
43 friend class VMStructs;
44 public:
45 enum Where {
46 on_stack,
47 in_register
48 };
49
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