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 OS_CPU_SOLARIS_SPARC_VM_THREAD_SOLARIS_SPARC_HPP
26 #define OS_CPU_SOLARIS_SPARC_VM_THREAD_SOLARIS_SPARC_HPP
27 private:
28
29 void pd_initialize() {
30 _anchor.clear();
31 _base_of_stack_pointer = NULL;
32 }
33
34 frame pd_last_frame() {
35 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
36 assert(_anchor.walkable(), "thread has not dumped its register windows yet");
37
38 assert(_anchor.last_Java_pc() != NULL, "Ack no pc!");
39 return frame(last_Java_sp(), frame::unpatchable, _anchor.last_Java_pc());
40 }
41
42 // Sometimes the trap handler needs to record both PC and NPC.
43 // This is a SPARC-specific companion to Thread::set_saved_exception_pc.
44 address _saved_exception_npc;
45
46 // In polling_page_safepoint_handler_blob(s) we have to tail call other
47 // blobs without blowing any registers. A tail call requires some
48 // register to jump with and we can't blow any registers, so it must
49 // be restored in the delay slot. 'restore' cannot be used as it
50 // will chop the heads off of 64-bit %o registers in the 32-bit
51 // build. Instead we reload the registers using G2_thread and this
52 // location. Must be 64bits in the 32-bit LION build.
53 jdouble _o_reg_temps[6];
54
55 // a stack pointer older than any java frame stack pointer. It is
56 // used to validate stack pointers in frame::next_younger_sp (it
57 // provides the upper bound in the range check). This is necessary
58 // on Solaris/SPARC since the ucontext passed to a signal handler is
59 // sometimes corrupt and we need a way to check the extracted sp.
60 intptr_t* _base_of_stack_pointer;
|
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 OS_CPU_SOLARIS_SPARC_VM_THREAD_SOLARIS_SPARC_HPP
26 #define OS_CPU_SOLARIS_SPARC_VM_THREAD_SOLARIS_SPARC_HPP
27 private:
28
29 void pd_initialize() {
30 _anchor.clear();
31 _base_of_stack_pointer = NULL;
32 }
33
34 frame pd_last_frame();
35
36 // Sometimes the trap handler needs to record both PC and NPC.
37 // This is a SPARC-specific companion to Thread::set_saved_exception_pc.
38 address _saved_exception_npc;
39
40 // In polling_page_safepoint_handler_blob(s) we have to tail call other
41 // blobs without blowing any registers. A tail call requires some
42 // register to jump with and we can't blow any registers, so it must
43 // be restored in the delay slot. 'restore' cannot be used as it
44 // will chop the heads off of 64-bit %o registers in the 32-bit
45 // build. Instead we reload the registers using G2_thread and this
46 // location. Must be 64bits in the 32-bit LION build.
47 jdouble _o_reg_temps[6];
48
49 // a stack pointer older than any java frame stack pointer. It is
50 // used to validate stack pointers in frame::next_younger_sp (it
51 // provides the upper bound in the range check). This is necessary
52 // on Solaris/SPARC since the ucontext passed to a signal handler is
53 // sometimes corrupt and we need a way to check the extracted sp.
54 intptr_t* _base_of_stack_pointer;
|