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 *
51 // will chop the heads off of 64-bit %o registers in the 32-bit
52 // build. Instead we reload the registers using G2_thread and this
53 // location. Must be 64bits in the 32-bit LION build.
54 jdouble _o_reg_temps[6];
55
56 // a stack pointer older than any java frame stack pointer. It is
57 // used to validate stack pointers in frame::next_younger_sp (it
58 // provides the upper bound in the range check). This is necessary
59 // on Solaris/SPARC since the ucontext passed to a signal handler is
60 // sometimes corrupt and we need a way to check the extracted sp.
61 intptr_t* _base_of_stack_pointer;
62
63 public:
64
65 static int o_reg_temps_offset_in_bytes() { return offset_of(JavaThread, _o_reg_temps); }
66
67 #ifndef _LP64
68 address o_reg_temps(int i) { return (address)&_o_reg_temps[i]; }
69 #endif
70
71 static int saved_exception_npc_offset_in_bytes() { return offset_of(JavaThread,_saved_exception_npc); }
72
73 address saved_exception_npc() { return _saved_exception_npc; }
74 void set_saved_exception_npc(address a) { _saved_exception_npc = a; }
75
76
77 public:
78
79 intptr_t* base_of_stack_pointer() { return _base_of_stack_pointer; }
80
81 void set_base_of_stack_pointer(intptr_t* base_sp) {
82 _base_of_stack_pointer = base_sp;
83 }
84
85 void record_base_of_stack_pointer() {
86 intptr_t *sp = (intptr_t *)(((intptr_t)StubRoutines::Sparc::flush_callers_register_windows_func()()));
87 intptr_t *ysp;
88 while((ysp = (intptr_t*)sp[FP->sp_offset_in_saved_window()]) != NULL) {
89 sp = (intptr_t *)((intptr_t)ysp + STACK_BIAS);
90 }
91 _base_of_stack_pointer = sp;
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1 /*
2 * Copyright (c) 1998, 2017, 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 *
51 // will chop the heads off of 64-bit %o registers in the 32-bit
52 // build. Instead we reload the registers using G2_thread and this
53 // location. Must be 64bits in the 32-bit LION build.
54 jdouble _o_reg_temps[6];
55
56 // a stack pointer older than any java frame stack pointer. It is
57 // used to validate stack pointers in frame::next_younger_sp (it
58 // provides the upper bound in the range check). This is necessary
59 // on Solaris/SPARC since the ucontext passed to a signal handler is
60 // sometimes corrupt and we need a way to check the extracted sp.
61 intptr_t* _base_of_stack_pointer;
62
63 public:
64
65 static int o_reg_temps_offset_in_bytes() { return offset_of(JavaThread, _o_reg_temps); }
66
67 #ifndef _LP64
68 address o_reg_temps(int i) { return (address)&_o_reg_temps[i]; }
69 #endif
70
71 static ByteSize saved_exception_npc_offset() { return byte_offset_of(JavaThread,_saved_exception_npc); }
72
73 address saved_exception_npc() { return _saved_exception_npc; }
74 void set_saved_exception_npc(address a) { _saved_exception_npc = a; }
75
76
77 public:
78
79 intptr_t* base_of_stack_pointer() { return _base_of_stack_pointer; }
80
81 void set_base_of_stack_pointer(intptr_t* base_sp) {
82 _base_of_stack_pointer = base_sp;
83 }
84
85 void record_base_of_stack_pointer() {
86 intptr_t *sp = (intptr_t *)(((intptr_t)StubRoutines::Sparc::flush_callers_register_windows_func()()));
87 intptr_t *ysp;
88 while((ysp = (intptr_t*)sp[FP->sp_offset_in_saved_window()]) != NULL) {
89 sp = (intptr_t *)((intptr_t)ysp + STACK_BIAS);
90 }
91 _base_of_stack_pointer = sp;
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