1 /*
2 * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
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 private:
25
26 void pd_initialize() {
27 _anchor.clear();
28 _base_of_stack_pointer = NULL;
29 }
30
31 frame pd_last_frame() {
32 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
33 assert(_anchor.walkable(), "thread has not dumped its register windows yet");
34
35 assert(_anchor.last_Java_pc() != NULL, "Ack no pc!");
36 return frame(last_Java_sp(), frame::unpatchable, _anchor.last_Java_pc());
37 }
38
39 // Sometimes the trap handler needs to record both PC and NPC.
40 // This is a SPARC-specific companion to Thread::set_saved_exception_pc.
41 address _saved_exception_npc;
42
43 // In polling_page_safepoint_handler_blob(s) we have to tail call other
78 _base_of_stack_pointer = base_sp;
79 }
80
81 void record_base_of_stack_pointer() {
82 intptr_t *sp = (intptr_t *)(((intptr_t)StubRoutines::Sparc::flush_callers_register_windows_func()()));
83 intptr_t *ysp;
84 while((ysp = (intptr_t*)sp[FP->sp_offset_in_saved_window()]) != NULL) {
85 sp = (intptr_t *)((intptr_t)ysp + STACK_BIAS);
86 }
87 _base_of_stack_pointer = sp;
88 }
89
90 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
91 bool isInJava);
92
93 // These routines are only used on cpu architectures that
94 // have separate register stacks (Itanium).
95 static bool register_stack_overflow() { return false; }
96 static void enable_register_stack_guard() {}
97 static void disable_register_stack_guard() {}
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1 /*
2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
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 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
81 _base_of_stack_pointer = base_sp;
82 }
83
84 void record_base_of_stack_pointer() {
85 intptr_t *sp = (intptr_t *)(((intptr_t)StubRoutines::Sparc::flush_callers_register_windows_func()()));
86 intptr_t *ysp;
87 while((ysp = (intptr_t*)sp[FP->sp_offset_in_saved_window()]) != NULL) {
88 sp = (intptr_t *)((intptr_t)ysp + STACK_BIAS);
89 }
90 _base_of_stack_pointer = sp;
91 }
92
93 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
94 bool isInJava);
95
96 // These routines are only used on cpu architectures that
97 // have separate register stacks (Itanium).
98 static bool register_stack_overflow() { return false; }
99 static void enable_register_stack_guard() {}
100 static void disable_register_stack_guard() {}
101
102 #endif // OS_CPU_SOLARIS_SPARC_VM_THREAD_SOLARIS_SPARC_HPP
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