Mercurial > hg > truffle
annotate src/os_cpu/aix_ppc/vm/os_aix_ppc.cpp @ 21310:3bc3865789b1
Apply NarrowableArithmeticNode marker interface to the correct node classes.
author | Roland Schatz <roland.schatz@oracle.com> |
---|---|
date | Mon, 11 May 2015 17:41:46 +0200 |
parents | c5e86c5cd22e |
children |
rev | line source |
---|---|
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1 /* |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
17807 | 3 * Copyright 2012, 2014 SAP AG. All rights reserved. |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5 * |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
6 * This code is free software; you can redistribute it and/or modify it |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
7 * under the terms of the GNU General Public License version 2 only, as |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
8 * published by the Free Software Foundation. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
9 * |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
10 * This code is distributed in the hope that it will be useful, but WITHOUT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
13 * version 2 for more details (a copy is included in the LICENSE file that |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
14 * accompanied this code). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
15 * |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
16 * You should have received a copy of the GNU General Public License version |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
17 * 2 along with this work; if not, write to the Free Software Foundation, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
19 * |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
21 * or visit www.oracle.com if you need additional information or have any |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
22 * questions. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
23 * |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
24 */ |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
25 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
26 // no precompiled headers |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
27 #include "assembler_ppc.inline.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
28 #include "classfile/classLoader.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
29 #include "classfile/systemDictionary.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
30 #include "classfile/vmSymbols.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
31 #include "code/icBuffer.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
32 #include "code/vtableStubs.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
33 #include "interpreter/interpreter.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
34 #include "jvm_aix.h" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
35 #include "memory/allocation.inline.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
36 #include "mutex_aix.inline.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
37 #include "nativeInst_ppc.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
38 #include "os_share_aix.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
39 #include "prims/jniFastGetField.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
40 #include "prims/jvm.h" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
41 #include "prims/jvm_misc.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
42 #include "runtime/arguments.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
43 #include "runtime/extendedPC.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
44 #include "runtime/frame.inline.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
45 #include "runtime/interfaceSupport.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
46 #include "runtime/java.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
47 #include "runtime/javaCalls.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
48 #include "runtime/mutexLocker.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
49 #include "runtime/osThread.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
50 #include "runtime/sharedRuntime.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
51 #include "runtime/stubRoutines.hpp" |
17807 | 52 #include "runtime/thread.inline.hpp" |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
53 #include "runtime/timer.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
54 #include "utilities/events.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
55 #include "utilities/vmError.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
56 #ifdef COMPILER1 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
57 #include "c1/c1_Runtime1.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
58 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
59 #ifdef COMPILER2 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
60 #include "opto/runtime.hpp" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
61 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
62 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
63 // put OS-includes here |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
64 # include <ucontext.h> |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
65 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
66 address os::current_stack_pointer() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
67 address csp; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
68 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
69 #if !defined(USE_XLC_BUILTINS) |
14445 | 70 // inline assembly for `mr regno(csp), R1_SP': |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
71 __asm__ __volatile__ ("mr %0, 1":"=r"(csp):); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
72 #else |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
73 csp = (address) __builtin_frame_address(0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
74 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
75 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
76 return csp; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
77 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
78 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
79 char* os::non_memory_address_word() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
80 // Must never look like an address returned by reserve_memory, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
81 // even in its subfields (as defined by the CPU immediate fields, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
82 // if the CPU splits constants across multiple instructions). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
83 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
84 return (char*) -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
85 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
86 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
87 // OS specific thread initialization |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
88 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
89 // Calculate and store the limits of the memory stack. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
90 void os::initialize_thread(Thread *thread) { } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
91 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
92 // Frame information (pc, sp, fp) retrieved via ucontext |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
93 // always looks like a C-frame according to the frame |
20710
c5e86c5cd22e
8066964: ppc64: argument and return type profiling, fix problem with popframe
goetz
parents:
17807
diff
changeset
|
94 // conventions in frame_ppc.hpp. |
c5e86c5cd22e
8066964: ppc64: argument and return type profiling, fix problem with popframe
goetz
parents:
17807
diff
changeset
|
95 |
c5e86c5cd22e
8066964: ppc64: argument and return type profiling, fix problem with popframe
goetz
parents:
17807
diff
changeset
|
96 address os::Aix::ucontext_get_pc(const ucontext_t * uc) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
97 return (address)uc->uc_mcontext.jmp_context.iar; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
98 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
99 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
100 intptr_t* os::Aix::ucontext_get_sp(ucontext_t * uc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
101 // gpr1 holds the stack pointer on aix |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
102 return (intptr_t*)uc->uc_mcontext.jmp_context.gpr[1/*REG_SP*/]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
103 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
104 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
105 intptr_t* os::Aix::ucontext_get_fp(ucontext_t * uc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
106 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
107 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
108 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
109 void os::Aix::ucontext_set_pc(ucontext_t* uc, address new_pc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
110 uc->uc_mcontext.jmp_context.iar = (uint64_t) new_pc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
111 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
112 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
113 ExtendedPC os::fetch_frame_from_context(void* ucVoid, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
114 intptr_t** ret_sp, intptr_t** ret_fp) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
115 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
116 ExtendedPC epc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
117 ucontext_t* uc = (ucontext_t*)ucVoid; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
118 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
119 if (uc != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
120 epc = ExtendedPC(os::Aix::ucontext_get_pc(uc)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
121 if (ret_sp) *ret_sp = os::Aix::ucontext_get_sp(uc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
122 if (ret_fp) *ret_fp = os::Aix::ucontext_get_fp(uc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
123 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
124 // construct empty ExtendedPC for return value checking |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
125 epc = ExtendedPC(NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
126 if (ret_sp) *ret_sp = (intptr_t *)NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
127 if (ret_fp) *ret_fp = (intptr_t *)NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
128 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
129 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
130 return epc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
131 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
132 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
133 frame os::fetch_frame_from_context(void* ucVoid) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
134 intptr_t* sp; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
135 intptr_t* fp; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
136 ExtendedPC epc = fetch_frame_from_context(ucVoid, &sp, &fp); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
137 // Avoid crash during crash if pc broken. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
138 if (epc.pc()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
139 frame fr(sp, epc.pc()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
140 return fr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
141 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
142 frame fr(sp); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
143 return fr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
144 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
145 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
146 frame os::get_sender_for_C_frame(frame* fr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
147 if (*fr->sp() == NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
148 // fr is the last C frame |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
149 return frame(NULL, NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
150 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
151 return frame(fr->sender_sp(), fr->sender_pc()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
152 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
153 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
154 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
155 frame os::current_frame() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
156 intptr_t* csp = (intptr_t*) *((intptr_t*) os::current_stack_pointer()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
157 // hack. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
158 frame topframe(csp, (address)0x8); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
159 // return sender of current topframe which hopefully has pc != NULL. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
160 return os::get_sender_for_C_frame(&topframe); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
161 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
162 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
163 // Utility functions |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
164 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
165 extern "C" JNIEXPORT int |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
166 JVM_handle_aix_signal(int sig, siginfo_t* info, void* ucVoid, int abort_if_unrecognized) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
167 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
168 ucontext_t* uc = (ucontext_t*) ucVoid; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
169 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
170 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
171 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
172 SignalHandlerMark shm(t); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
173 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
174 // Note: it's not uncommon that JNI code uses signal/sigset to install |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
175 // then restore certain signal handler (e.g. to temporarily block SIGPIPE, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
176 // or have a SIGILL handler when detecting CPU type). When that happens, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
177 // JVM_handle_aix_signal() might be invoked with junk info/ucVoid. To |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
178 // avoid unnecessary crash when libjsig is not preloaded, try handle signals |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
179 // that do not require siginfo/ucontext first. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
180 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
181 if (sig == SIGPIPE) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
182 if (os::Aix::chained_handler(sig, info, ucVoid)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
183 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
184 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
185 if (PrintMiscellaneous && (WizardMode || Verbose)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
186 warning("Ignoring SIGPIPE - see bug 4229104"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
187 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
188 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
189 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
190 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
191 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
192 JavaThread* thread = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
193 VMThread* vmthread = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
194 if (os::Aix::signal_handlers_are_installed) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
195 if (t != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
196 if(t->is_Java_thread()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
197 thread = (JavaThread*)t; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
198 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
199 else if(t->is_VM_thread()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
200 vmthread = (VMThread *)t; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
201 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
202 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
203 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
204 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
205 // Decide if this trap can be handled by a stub. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
206 address stub = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
207 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
208 // retrieve program counter |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
209 address const pc = uc ? os::Aix::ucontext_get_pc(uc) : NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
210 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
211 // retrieve crash address |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
212 address const addr = info ? (const address) info->si_addr : NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
213 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
214 // SafeFetch 32 handling: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
215 // - make it work if _thread is null |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
216 // - make it use the standard os::...::ucontext_get/set_pc APIs |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
217 if (uc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
218 address const pc = os::Aix::ucontext_get_pc(uc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
219 if (pc && StubRoutines::is_safefetch_fault(pc)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
220 os::Aix::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
221 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
222 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
223 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
224 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
225 // Handle SIGDANGER right away. AIX would raise SIGDANGER whenever available swap |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
226 // space falls below 30%. This is only a chance for the process to gracefully abort. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
227 // We can't hope to proceed after SIGDANGER since SIGKILL tailgates. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
228 if (sig == SIGDANGER) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
229 goto report_and_die; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
230 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
231 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
232 if (info == NULL || uc == NULL || thread == NULL && vmthread == NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
233 goto run_chained_handler; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
234 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
235 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
236 // If we are a java thread... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
237 if (thread != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
238 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
239 // Handle ALL stack overflow variations here |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
240 if (sig == SIGSEGV && (addr < thread->stack_base() && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
241 addr >= thread->stack_base() - thread->stack_size())) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
242 // stack overflow |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
243 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
244 // If we are in a yellow zone and we are inside java, we disable the yellow zone and |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
245 // throw a stack overflow exception. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
246 // If we are in native code or VM C code, we report-and-die. The original coding tried |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
247 // to continue with yellow zone disabled, but that doesn't buy us much and prevents |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
248 // hs_err_pid files. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
249 if (thread->in_stack_yellow_zone(addr)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
250 thread->disable_stack_yellow_zone(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
251 if (thread->thread_state() == _thread_in_Java) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
252 // Throw a stack overflow exception. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
253 // Guard pages will be reenabled while unwinding the stack. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
254 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
255 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
256 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
257 // Thread was in the vm or native code. Return and try to finish. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
258 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
259 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
260 } else if (thread->in_stack_red_zone(addr)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
261 // Fatal red zone violation. Disable the guard pages and fall through |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
262 // to handle_unexpected_exception way down below. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
263 thread->disable_stack_red_zone(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
264 tty->print_raw_cr("An irrecoverable stack overflow has occurred."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
265 goto report_and_die; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
266 } else { |
14445 | 267 // This means a segv happened inside our stack, but not in |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
268 // the guarded zone. I'd like to know when this happens, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
269 tty->print_raw_cr("SIGSEGV happened inside stack but outside yellow and red zone."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
270 goto report_and_die; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
271 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
272 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
273 } // end handle SIGSEGV inside stack boundaries |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
274 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
275 if (thread->thread_state() == _thread_in_Java) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
276 // Java thread running in Java code |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
277 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
278 // The following signals are used for communicating VM events: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
279 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
280 // SIGILL: the compiler generates illegal opcodes |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
281 // at places where it wishes to interrupt the VM: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
282 // Safepoints, Unreachable Code, Entry points of Zombie methods, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
283 // This results in a SIGILL with (*pc) == inserted illegal instruction. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
284 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
285 // (so, SIGILLs with a pc inside the zero page are real errors) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
286 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
287 // SIGTRAP: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
288 // The ppc trap instruction raises a SIGTRAP and is very efficient if it |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
289 // does not trap. It is used for conditional branches that are expected |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
290 // to be never taken. These are: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
291 // - zombie methods |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
292 // - IC (inline cache) misses. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
293 // - null checks leading to UncommonTraps. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
294 // - range checks leading to Uncommon Traps. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
295 // On Aix, these are especially null checks, as the ImplicitNullCheck |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
296 // optimization works only in rare cases, as the page at address 0 is only |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
297 // write protected. // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
298 // Note: !UseSIGTRAP is used to prevent SIGTRAPS altogether, to facilitate debugging. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
299 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
300 // SIGSEGV: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
301 // used for safe point polling: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
302 // To notify all threads that they have to reach a safe point, safe point polling is used: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
303 // All threads poll a certain mapped memory page. Normally, this page has read access. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
304 // If the VM wants to inform the threads about impending safe points, it puts this |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
305 // page to read only ("poisens" the page), and the threads then reach a safe point. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
306 // used for null checks: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
307 // If the compiler finds a store it uses it for a null check. Unfortunately this |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
308 // happens rarely. In heap based and disjoint base compressd oop modes also loads |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
309 // are used for null checks. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
310 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
311 // A VM-related SIGILL may only occur if we are not in the zero page. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
312 // On AIX, we get a SIGILL if we jump to 0x0 or to somewhere else |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
313 // in the zero page, because it is filled with 0x0. We ignore |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
314 // explicit SIGILLs in the zero page. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
315 if (sig == SIGILL && (pc < (address) 0x200)) { |
14445 | 316 if (TraceTraps) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
317 tty->print_raw_cr("SIGILL happened inside zero page."); |
14445 | 318 } |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
319 goto report_and_die; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
320 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
321 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
322 // Handle signal from NativeJump::patch_verified_entry(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
323 if (( TrapBasedNotEntrantChecks && sig == SIGTRAP && nativeInstruction_at(pc)->is_sigtrap_zombie_not_entrant()) || |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
324 (!TrapBasedNotEntrantChecks && sig == SIGILL && nativeInstruction_at(pc)->is_sigill_zombie_not_entrant())) { |
14445 | 325 if (TraceTraps) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
326 tty->print_cr("trap: zombie_not_entrant (%s)", (sig == SIGTRAP) ? "SIGTRAP" : "SIGILL"); |
14445 | 327 } |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
328 stub = SharedRuntime::get_handle_wrong_method_stub(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
329 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
330 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
331 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
332 else if (sig == SIGSEGV && os::is_poll_address(addr)) { |
14445 | 333 if (TraceTraps) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
334 tty->print_cr("trap: safepoint_poll at " INTPTR_FORMAT " (SIGSEGV)", pc); |
14445 | 335 } |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
336 stub = SharedRuntime::get_poll_stub(pc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
337 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
338 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
339 |
14445 | 340 // SIGTRAP-based ic miss check in compiled code. |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
341 else if (sig == SIGTRAP && TrapBasedICMissChecks && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
342 nativeInstruction_at(pc)->is_sigtrap_ic_miss_check()) { |
14445 | 343 if (TraceTraps) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
344 tty->print_cr("trap: ic_miss_check at " INTPTR_FORMAT " (SIGTRAP)", pc); |
14445 | 345 } |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
346 stub = SharedRuntime::get_ic_miss_stub(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
347 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
348 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
349 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
350 // SIGTRAP-based implicit null check in compiled code. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
351 else if (sig == SIGTRAP && TrapBasedNullChecks && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
352 nativeInstruction_at(pc)->is_sigtrap_null_check()) { |
14445 | 353 if (TraceTraps) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
354 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGTRAP)", pc); |
14445 | 355 } |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
356 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
357 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
358 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
359 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
360 // SIGSEGV-based implicit null check in compiled code. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
361 else if (sig == SIGSEGV && ImplicitNullChecks && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
362 CodeCache::contains((void*) pc) && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
363 !MacroAssembler::needs_explicit_null_check((intptr_t) info->si_addr)) { |
14445 | 364 if (TraceTraps) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
365 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGSEGV)", pc); |
14445 | 366 } |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
367 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
368 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
369 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
370 #ifdef COMPILER2 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
371 // SIGTRAP-based implicit range check in compiled code. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
372 else if (sig == SIGTRAP && TrapBasedRangeChecks && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
373 nativeInstruction_at(pc)->is_sigtrap_range_check()) { |
14445 | 374 if (TraceTraps) { |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
375 tty->print_cr("trap: range_check at " INTPTR_FORMAT " (SIGTRAP)", pc); |
14445 | 376 } |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
377 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
378 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
379 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
380 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
381 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
382 else if (sig == SIGFPE /* && info->si_code == FPE_INTDIV */) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
383 if (TraceTraps) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
384 tty->print_raw_cr("Fix SIGFPE handler, trying divide by zero handler."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
385 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
386 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
387 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
388 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
389 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
390 else if (sig == SIGBUS) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
391 // BugId 4454115: A read from a MappedByteBuffer can fault here if the |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
392 // underlying file has been truncated. Do not crash the VM in such a case. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
393 CodeBlob* cb = CodeCache::find_blob_unsafe(pc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
394 nmethod* nm = cb->is_nmethod() ? (nmethod*)cb : NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
395 if (nm != NULL && nm->has_unsafe_access()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
396 // We don't really need a stub here! Just set the pending exeption and |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
397 // continue at the next instruction after the faulting read. Returning |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
398 // garbage from this read is ok. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
399 thread->set_pending_unsafe_access_error(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
400 uc->uc_mcontext.jmp_context.iar = ((unsigned long)pc) + 4; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
401 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
402 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
403 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
404 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
405 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
406 else { // thread->thread_state() != _thread_in_Java |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
407 // Detect CPU features. This is only done at the very start of the VM. Later, the |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
408 // VM_Version::is_determine_features_test_running() flag should be false. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
409 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
410 if (sig == SIGILL && VM_Version::is_determine_features_test_running()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
411 // SIGILL must be caused by VM_Version::determine_features(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
412 *(int *)pc = 0; // patch instruction to 0 to indicate that it causes a SIGILL, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
413 // flushing of icache is not necessary. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
414 stub = pc + 4; // continue with next instruction. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
415 goto run_stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
416 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
417 else if (thread->thread_state() == _thread_in_vm && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
418 sig == SIGBUS && thread->doing_unsafe_access()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
419 // We don't really need a stub here! Just set the pending exeption and |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
420 // continue at the next instruction after the faulting read. Returning |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
421 // garbage from this read is ok. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
422 thread->set_pending_unsafe_access_error(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
423 uc->uc_mcontext.jmp_context.iar = ((unsigned long)pc) + 4; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
424 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
425 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
426 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
427 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
428 // Check to see if we caught the safepoint code in the |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
429 // process of write protecting the memory serialization page. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
430 // It write enables the page immediately after protecting it |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
431 // so we can just return to retry the write. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
432 if ((sig == SIGSEGV) && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
433 os::is_memory_serialize_page(thread, addr)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
434 // Synchronization problem in the pseudo memory barrier code (bug id 6546278) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
435 // Block current thread until the memory serialize page permission restored. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
436 os::block_on_serialize_page_trap(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
437 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
438 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
439 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
440 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
441 run_stub: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
442 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
443 // One of the above code blocks ininitalized the stub, so we want to |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
444 // delegate control to that stub. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
445 if (stub != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
446 // Save all thread context in case we need to restore it. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
447 if (thread != NULL) thread->set_saved_exception_pc(pc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
448 uc->uc_mcontext.jmp_context.iar = (unsigned long)stub; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
449 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
450 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
451 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
452 run_chained_handler: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
453 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
454 // signal-chaining |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
455 if (os::Aix::chained_handler(sig, info, ucVoid)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
456 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
457 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
458 if (!abort_if_unrecognized) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
459 // caller wants another chance, so give it to him |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
460 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
461 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
462 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
463 report_and_die: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
464 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
465 // Use sigthreadmask instead of sigprocmask on AIX and unmask current signal. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
466 sigset_t newset; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
467 sigemptyset(&newset); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
468 sigaddset(&newset, sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
469 sigthreadmask(SIG_UNBLOCK, &newset, NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
470 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
471 VMError err(t, sig, pc, info, ucVoid); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
472 err.report_and_die(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
473 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
474 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
475 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
476 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
477 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
478 void os::Aix::init_thread_fpu_state(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
479 #if !defined(USE_XLC_BUILTINS) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
480 // Disable FP exceptions. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
481 __asm__ __volatile__ ("mtfsfi 6,0"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
482 #else |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
483 __mtfsfi(6, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
484 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
485 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
486 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
487 //////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
488 // thread stack |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
489 |
20710
c5e86c5cd22e
8066964: ppc64: argument and return type profiling, fix problem with popframe
goetz
parents:
17807
diff
changeset
|
490 size_t os::Aix::min_stack_allowed = 128*K; |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
491 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
492 // Aix is always in floating stack mode. The stack size for a new |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
493 // thread can be set via pthread_attr_setstacksize(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
494 bool os::Aix::supports_variable_stack_size() { return true; } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
495 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
496 // return default stack size for thr_type |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
497 size_t os::Aix::default_stack_size(os::ThreadType thr_type) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
498 // default stack size (compiler thread needs larger stack) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
499 // Notice that the setting for compiler threads here have no impact |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
500 // because of the strange 'fallback logic' in os::create_thread(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
501 // Better set CompilerThreadStackSize in globals_<os_cpu>.hpp if you want to |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
502 // specify a different stack size for compiler threads! |
20710
c5e86c5cd22e
8066964: ppc64: argument and return type profiling, fix problem with popframe
goetz
parents:
17807
diff
changeset
|
503 size_t s = (thr_type == os::compiler_thread ? 4 * M : 1 * M); |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
504 return s; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
505 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
506 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
507 size_t os::Aix::default_guard_size(os::ThreadType thr_type) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
508 return 2 * page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
509 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
510 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
511 ///////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
512 // helper functions for fatal error handler |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
513 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
514 void os::print_context(outputStream *st, void *context) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
515 if (context == NULL) return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
516 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
517 ucontext_t* uc = (ucontext_t*)context; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
518 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
519 st->print_cr("Registers:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
520 st->print("pc =" INTPTR_FORMAT " ", uc->uc_mcontext.jmp_context.iar); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
521 st->print("lr =" INTPTR_FORMAT " ", uc->uc_mcontext.jmp_context.lr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
522 st->print("ctr=" INTPTR_FORMAT " ", uc->uc_mcontext.jmp_context.ctr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
523 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
524 for (int i = 0; i < 32; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
525 st->print("r%-2d=" INTPTR_FORMAT " ", i, uc->uc_mcontext.jmp_context.gpr[i]); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
526 if (i % 3 == 2) st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
527 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
528 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
529 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
530 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
531 intptr_t *sp = (intptr_t *)os::Aix::ucontext_get_sp(uc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
532 st->print_cr("Top of Stack: (sp=" PTR_FORMAT ")", sp); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
533 print_hex_dump(st, (address)sp, (address)(sp + 128), sizeof(intptr_t)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
534 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
535 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
536 // Note: it may be unsafe to inspect memory near pc. For example, pc may |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
537 // point to garbage if entry point in an nmethod is corrupted. Leave |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
538 // this at the end, and hope for the best. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
539 address pc = os::Aix::ucontext_get_pc(uc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
540 st->print_cr("Instructions: (pc=" PTR_FORMAT ")", pc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
541 print_hex_dump(st, pc - 64, pc + 64, /*instrsize=*/4); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
542 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
543 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
544 // Try to decode the instructions. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
545 st->print_cr("Decoded instructions: (pc=" PTR_FORMAT ")", pc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
546 st->print("<TODO: PPC port - print_context>"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
547 // TODO: PPC port Disassembler::decode(pc, 16, 16, st); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
548 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
549 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
550 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
551 void os::print_register_info(outputStream *st, void *context) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
552 if (context == NULL) return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
553 st->print("Not ported - print_register_info\n"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
554 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
555 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
556 extern "C" { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
557 int SpinPause() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
558 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
559 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
560 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
561 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
562 #ifndef PRODUCT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
563 void os::verify_stack_alignment() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
564 assert(((intptr_t)os::current_stack_pointer() & (StackAlignmentInBytes-1)) == 0, "incorrect stack alignment"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
565 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
566 #endif |