truffle: src/cpu/x86/vm/frame

annotate src/cpu/x86/vm/frame_x86.cpp @ 4668:3dbcd1013cc8

added flag PrintDeoptimizationDetails changes so that TraceDeoptimization only prints basic information added nicer formatting for printing interpreter stack frames

author	Christian Haeubl <christian.haeubl@oracle.com>
date	Tue, 21 Feb 2012 16:05:46 -0800
parents	04b9a2566eec
children	33df1aeaebbf

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
3336 2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1513 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1513 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1513 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	26 #include "interpreter/interpreter.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	27 #include "memory/resourceArea.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	28 #include "oops/markOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	29 #include "oops/methodOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	30 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	31 #include "runtime/frame.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	32 #include "runtime/handles.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	33 #include "runtime/javaCalls.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	34 #include "runtime/monitorChunk.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	35 #include "runtime/signature.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	36 #include "runtime/stubCodeGenerator.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	37 #include "runtime/stubRoutines.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	38 #include "vmreg_x86.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	39 #ifdef COMPILER1
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	40 #include "c1/c1_Runtime1.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	41 #include "runtime/vframeArray.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1748 diff changeset	42 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	43
a61af66fc99e Initial load duke parents: diff changeset	44 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	45 void RegisterMap::check_location_valid() {
a61af66fc99e Initial load duke parents: diff changeset	46 }
a61af66fc99e Initial load duke parents: diff changeset	47 #endif
a61af66fc99e Initial load duke parents: diff changeset	48
a61af66fc99e Initial load duke parents: diff changeset	49
a61af66fc99e Initial load duke parents: diff changeset	50 // Profiling/safepoint support
a61af66fc99e Initial load duke parents: diff changeset	51
a61af66fc99e Initial load duke parents: diff changeset	52 bool frame::safe_for_sender(JavaThread *thread) {
a61af66fc99e Initial load duke parents: diff changeset	53 address sp = (address)_sp;
a61af66fc99e Initial load duke parents: diff changeset	54 address fp = (address)_fp;
a61af66fc99e Initial load duke parents: diff changeset	55 address unextended_sp = (address)_unextended_sp;
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	56 // sp must be within the stack
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	57 bool sp_safe = (sp <= thread->stack_base()) &&
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	58 (sp >= thread->stack_base() - thread->stack_size());
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	59
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	60 if (!sp_safe) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	61 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	62 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	63
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	64 // unextended sp must be within the stack and above or equal sp
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	65 bool unextended_sp_safe = (unextended_sp <= thread->stack_base()) &&
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	66 (unextended_sp >= sp);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	67
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	68 if (!unextended_sp_safe) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	69 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	70 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	71
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	72 // an fp must be within the stack and above (but not equal) sp
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	73 bool fp_safe = (fp <= thread->stack_base()) && (fp > sp);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	74
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	75 // We know sp/unextended_sp are safe only fp is questionable here
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	76
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	77 // If the current frame is known to the code cache then we can attempt to
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	78 // to construct the sender and do some validation of it. This goes a long way
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	79 // toward eliminating issues when we get in frame construction code
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	80
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	81 if (_cb != NULL ) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	82
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	83 // First check if frame is complete and tester is reliable
0 a61af66fc99e Initial load duke parents: diff changeset	84 // Unfortunately we can only check frame complete for runtime stubs and nmethod
a61af66fc99e Initial load duke parents: diff changeset	85 // other generic buffer blobs are more problematic so we just assume they are
a61af66fc99e Initial load duke parents: diff changeset	86 // ok. adapter blobs never have a frame complete and are never ok.
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	87
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	88 if (!_cb->is_frame_complete_at(_pc)) {
0 a61af66fc99e Initial load duke parents: diff changeset	89 if (_cb->is_nmethod() \|\| _cb->is_adapter_blob() \|\| _cb->is_runtime_stub()) {
a61af66fc99e Initial load duke parents: diff changeset	90 return false;
a61af66fc99e Initial load duke parents: diff changeset	91 }
a61af66fc99e Initial load duke parents: diff changeset	92 }
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	93 // Entry frame checks
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	94 if (is_entry_frame()) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	95 // an entry frame must have a valid fp.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	96
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	97 if (!fp_safe) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	98
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	99 // Validate the JavaCallWrapper an entry frame must have
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	100
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	101 address jcw = (address)entry_frame_call_wrapper();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	102
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	103 bool jcw_safe = (jcw <= thread->stack_base()) && ( jcw > fp);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	104
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	105 return jcw_safe;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	106
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	107 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	108
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	109 intptr_t* sender_sp = NULL;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	110 address sender_pc = NULL;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	111
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	112 if (is_interpreted_frame()) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	113 // fp must be safe
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	114 if (!fp_safe) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	115 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	116 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	117
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	118 sender_pc = (address) this->fp()[return_addr_offset];
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	119 sender_sp = (intptr_t*) addr_at(sender_sp_offset);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	120
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	121 } else {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	122 // must be some sort of compiled/runtime frame
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	123 // fp does not have to be safe (although it could be check for c1?)
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	124
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	125 sender_sp = _unextended_sp + _cb->frame_size();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	126 // On Intel the return_address is always the word on the stack
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	127 sender_pc = (address) *(sender_sp-1);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	128 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	129
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	130 // We must always be able to find a recognizable pc
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	131 CodeBlob* sender_blob = CodeCache::find_blob_unsafe(sender_pc);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	132 if (sender_pc == NULL \|\| sender_blob == NULL) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	133 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	134 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	135
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	136
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	137 // If the potential sender is the interpreter then we can do some more checking
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	138 if (Interpreter::contains(sender_pc)) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	139
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	140 // ebp is always saved in a recognizable place in any code we generate. However
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	141 // only if the sender is interpreted/call_stub (c1 too?) are we certain that the saved ebp
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	142 // is really a frame pointer.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	143
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	144 intptr_t saved_fp = (intptr_t)*(sender_sp - frame::sender_sp_offset);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	145 bool saved_fp_safe = ((address)saved_fp <= thread->stack_base()) && (saved_fp > sender_sp);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	146
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	147 if (!saved_fp_safe) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	148 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	149 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	150
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	151 // construct the potential sender
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	152
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	153 frame sender(sender_sp, saved_fp, sender_pc);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	154
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	155 return sender.is_interpreted_frame_valid(thread);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	156
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	157 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	158
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	159 // Could just be some random pointer within the codeBlob
1748 3e8fbc61cee8 6978355: renaming for 6961697 twisti parents: 1681 diff changeset	160 if (!sender_blob->code_contains(sender_pc)) {
3e8fbc61cee8 6978355: renaming for 6961697 twisti parents: 1681 diff changeset	161 return false;
3e8fbc61cee8 6978355: renaming for 6961697 twisti parents: 1681 diff changeset	162 }
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	163
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	164 // We should never be able to see an adapter if the current frame is something from code cache
1748 3e8fbc61cee8 6978355: renaming for 6961697 twisti parents: 1681 diff changeset	165 if (sender_blob->is_adapter_blob()) {
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	166 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	167 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	168
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	169 // Could be the call_stub
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	170
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	171 if (StubRoutines::returns_to_call_stub(sender_pc)) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	172 intptr_t saved_fp = (intptr_t)*(sender_sp - frame::sender_sp_offset);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	173 bool saved_fp_safe = ((address)saved_fp <= thread->stack_base()) && (saved_fp > sender_sp);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	174
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	175 if (!saved_fp_safe) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	176 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	177 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	178
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	179 // construct the potential sender
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	180
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	181 frame sender(sender_sp, saved_fp, sender_pc);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	182
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	183 // Validate the JavaCallWrapper an entry frame must have
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	184 address jcw = (address)sender.entry_frame_call_wrapper();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	185
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	186 bool jcw_safe = (jcw <= thread->stack_base()) && ( jcw > (address)sender.fp());
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	187
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	188 return jcw_safe;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	189 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	190
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	191 // If the frame size is 0 something is bad because every nmethod has a non-zero frame size
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	192 // because the return address counts against the callee's frame.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	193
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	194 if (sender_blob->frame_size() == 0) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	195 assert(!sender_blob->is_nmethod(), "should count return address at least");
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	196 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	197 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	198
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	199 // We should never be able to see anything here except an nmethod. If something in the
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	200 // code cache (current frame) is called by an entity within the code cache that entity
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	201 // should not be anything but the call stub (already covered), the interpreter (already covered)
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	202 // or an nmethod.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	203
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	204 assert(sender_blob->is_nmethod(), "Impossible call chain");
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	205
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	206 // Could put some more validation for the potential non-interpreted sender
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	207 // frame we'd create by calling sender if I could think of any. Wait for next crash in forte...
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	208
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	209 // One idea is seeing if the sender_pc we have is one that we'd expect to call to current cb
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	210
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	211 // We've validated the potential sender that would be created
0 a61af66fc99e Initial load duke parents: diff changeset	212 return true;
a61af66fc99e Initial load duke parents: diff changeset	213 }
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	214
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	215 // Must be native-compiled frame. Since sender will try and use fp to find
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	216 // linkages it must be safe
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	217
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	218 if (!fp_safe) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	219 return false;
0 a61af66fc99e Initial load duke parents: diff changeset	220 }
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	221
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	222 // Will the pc we fetch be non-zero (which we'll find at the oldest frame)
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	223
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	224 if ( (address) this->fp()[return_addr_offset] == NULL) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	225
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	226
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	227 // could try and do some more potential verification of native frame if we could think of some...
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	228
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	229 return true;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	230
0 a61af66fc99e Initial load duke parents: diff changeset	231 }
a61af66fc99e Initial load duke parents: diff changeset	232
a61af66fc99e Initial load duke parents: diff changeset	233
a61af66fc99e Initial load duke parents: diff changeset	234 void frame::patch_pc(Thread* thread, address pc) {
4000 0abefdb54d21 7081938: JSR292: assert(magic_number_2() == MAGIC_NUMBER_2) failed twisti parents: 3931 diff changeset	235 address* pc_addr = &(((address*) sp())[-1]);
0 a61af66fc99e Initial load duke parents: diff changeset	236 if (TracePcPatching) {
4056 448691f285a5 7106944: assert(_pc == pc_addr) failed may be too strong twisti* parents: 4000 diff changeset	237 tty->print_cr("patch_pc at address " INTPTR_FORMAT " [" INTPTR_FORMAT " -> " INTPTR_FORMAT "]",
4000 0abefdb54d21 7081938: JSR292: assert(magic_number_2() == MAGIC_NUMBER_2) failed twisti parents: 3931 diff changeset	238 pc_addr, *pc_addr, pc);
0 a61af66fc99e Initial load duke parents: diff changeset	239 }
4056 448691f285a5 7106944: assert(_pc == pc_addr) failed may be too strong twisti* parents: 4000 diff changeset	240 // Either the return address is the original one or we are going to
448691f285a5 7106944: assert(_pc == pc_addr) failed may be too strong twisti* parents: 4000 diff changeset	241 // patch in the same address that's already there.
448691f285a5 7106944: assert(_pc == pc_addr) failed may be too strong twisti* parents: 4000 diff changeset	242 assert(_pc == pc_addr \|\| pc == pc_addr, "must be");
4000 0abefdb54d21 7081938: JSR292: assert(magic_number_2() == MAGIC_NUMBER_2) failed twisti parents: 3931 diff changeset	243 *pc_addr = pc;
0 a61af66fc99e Initial load duke parents: diff changeset	244 _cb = CodeCache::find_blob(pc);
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	245 address original_pc = nmethod::get_deopt_original_pc(this);
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	246 if (original_pc != NULL) {
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	247 assert(original_pc == _pc, "expected original PC to be stored before patching");
0 a61af66fc99e Initial load duke parents: diff changeset	248 _deopt_state = is_deoptimized;
a61af66fc99e Initial load duke parents: diff changeset	249 // leave _pc as is
a61af66fc99e Initial load duke parents: diff changeset	250 } else {
a61af66fc99e Initial load duke parents: diff changeset	251 _deopt_state = not_deoptimized;
a61af66fc99e Initial load duke parents: diff changeset	252 _pc = pc;
a61af66fc99e Initial load duke parents: diff changeset	253 }
a61af66fc99e Initial load duke parents: diff changeset	254 }
a61af66fc99e Initial load duke parents: diff changeset	255
a61af66fc99e Initial load duke parents: diff changeset	256 bool frame::is_interpreted_frame() const {
a61af66fc99e Initial load duke parents: diff changeset	257 return Interpreter::contains(pc());
a61af66fc99e Initial load duke parents: diff changeset	258 }
a61af66fc99e Initial load duke parents: diff changeset	259
793 eacd97c88873 6848466: frame::frame_size() assertion failure with -XX:+DebugDeoptimization cfang parents: 304 diff changeset	260 int frame::frame_size(RegisterMap* map) const {
eacd97c88873 6848466: frame::frame_size() assertion failure with -XX:+DebugDeoptimization cfang parents: 304 diff changeset	261 frame sender = this->sender(map);
0 a61af66fc99e Initial load duke parents: diff changeset	262 return sender.sp() - sp();
a61af66fc99e Initial load duke parents: diff changeset	263 }
a61af66fc99e Initial load duke parents: diff changeset	264
a61af66fc99e Initial load duke parents: diff changeset	265 intptr_t* frame::entry_frame_argument_at(int offset) const {
a61af66fc99e Initial load duke parents: diff changeset	266 // convert offset to index to deal with tsi
a61af66fc99e Initial load duke parents: diff changeset	267 int index = (Interpreter::expr_offset_in_bytes(offset)/wordSize);
a61af66fc99e Initial load duke parents: diff changeset	268 // Entry frame's arguments are always in relation to unextended_sp()
a61af66fc99e Initial load duke parents: diff changeset	269 return &unextended_sp()[index];
a61af66fc99e Initial load duke parents: diff changeset	270 }
a61af66fc99e Initial load duke parents: diff changeset	271
a61af66fc99e Initial load duke parents: diff changeset	272 // sender_sp
a61af66fc99e Initial load duke parents: diff changeset	273 #ifdef CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	274 intptr_t* frame::interpreter_frame_sender_sp() const {
a61af66fc99e Initial load duke parents: diff changeset	275 assert(is_interpreted_frame(), "interpreted frame expected");
a61af66fc99e Initial load duke parents: diff changeset	276 // QQQ why does this specialize method exist if frame::sender_sp() does same thing?
a61af66fc99e Initial load duke parents: diff changeset	277 // seems odd and if we always know interpreted vs. non then sender_sp() is really
a61af66fc99e Initial load duke parents: diff changeset	278 // doing too much work.
a61af66fc99e Initial load duke parents: diff changeset	279 return get_interpreterState()->sender_sp();
a61af66fc99e Initial load duke parents: diff changeset	280 }
a61af66fc99e Initial load duke parents: diff changeset	281
a61af66fc99e Initial load duke parents: diff changeset	282 // monitor elements
a61af66fc99e Initial load duke parents: diff changeset	283
a61af66fc99e Initial load duke parents: diff changeset	284 BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
a61af66fc99e Initial load duke parents: diff changeset	285 return get_interpreterState()->monitor_base();
a61af66fc99e Initial load duke parents: diff changeset	286 }
a61af66fc99e Initial load duke parents: diff changeset	287
a61af66fc99e Initial load duke parents: diff changeset	288 BasicObjectLock* frame::interpreter_frame_monitor_end() const {
a61af66fc99e Initial load duke parents: diff changeset	289 return (BasicObjectLock*) get_interpreterState()->stack_base();
a61af66fc99e Initial load duke parents: diff changeset	290 }
a61af66fc99e Initial load duke parents: diff changeset	291
a61af66fc99e Initial load duke parents: diff changeset	292 #else // CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	293
a61af66fc99e Initial load duke parents: diff changeset	294 intptr_t* frame::interpreter_frame_sender_sp() const {
a61af66fc99e Initial load duke parents: diff changeset	295 assert(is_interpreted_frame(), "interpreted frame expected");
a61af66fc99e Initial load duke parents: diff changeset	296 return (intptr_t*) at(interpreter_frame_sender_sp_offset);
a61af66fc99e Initial load duke parents: diff changeset	297 }
a61af66fc99e Initial load duke parents: diff changeset	298
a61af66fc99e Initial load duke parents: diff changeset	299 void frame::set_interpreter_frame_sender_sp(intptr_t* sender_sp) {
a61af66fc99e Initial load duke parents: diff changeset	300 assert(is_interpreted_frame(), "interpreted frame expected");
a61af66fc99e Initial load duke parents: diff changeset	301 ptr_at_put(interpreter_frame_sender_sp_offset, (intptr_t) sender_sp);
a61af66fc99e Initial load duke parents: diff changeset	302 }
a61af66fc99e Initial load duke parents: diff changeset	303
4668 3dbcd1013cc8 added flag PrintDeoptimizationDetails Christian Haeubl <christian.haeubl@oracle.com> parents: 4137 diff changeset	304 intptr_t** frame::interpreter_frame_sender_sp_addr() const {
3dbcd1013cc8 added flag PrintDeoptimizationDetails Christian Haeubl <christian.haeubl@oracle.com> parents: 4137 diff changeset	305 assert(is_interpreted_frame(), "interpreted frame expected");
3dbcd1013cc8 added flag PrintDeoptimizationDetails Christian Haeubl <christian.haeubl@oracle.com> parents: 4137 diff changeset	306 return (intptr_t**) addr_at(interpreter_frame_sender_sp_offset);
3dbcd1013cc8 added flag PrintDeoptimizationDetails Christian Haeubl <christian.haeubl@oracle.com> parents: 4137 diff changeset	307 }
3dbcd1013cc8 added flag PrintDeoptimizationDetails Christian Haeubl <christian.haeubl@oracle.com> parents: 4137 diff changeset	308
0 a61af66fc99e Initial load duke parents: diff changeset	309
a61af66fc99e Initial load duke parents: diff changeset	310 // monitor elements
a61af66fc99e Initial load duke parents: diff changeset	311
a61af66fc99e Initial load duke parents: diff changeset	312 BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
a61af66fc99e Initial load duke parents: diff changeset	313 return (BasicObjectLock*) addr_at(interpreter_frame_monitor_block_bottom_offset);
a61af66fc99e Initial load duke parents: diff changeset	314 }
a61af66fc99e Initial load duke parents: diff changeset	315
a61af66fc99e Initial load duke parents: diff changeset	316 BasicObjectLock* frame::interpreter_frame_monitor_end() const {
a61af66fc99e Initial load duke parents: diff changeset	317 BasicObjectLock* result = (BasicObjectLock) addr_at(interpreter_frame_monitor_block_top_offset);
a61af66fc99e Initial load duke parents: diff changeset	318 // make sure the pointer points inside the frame
1488 615a9d95d265 6946056: assert((intptr_t) sp()<=(intptr_t) result,"result must>=than stack pointer"), frame_x86.cpp:295 johnc parents: 1204 diff changeset	319 assert(sp() <= (intptr_t*) result, "monitor end should be above the stack pointer");
615a9d95d265 6946056: assert((intptr_t) sp()<=(intptr_t) result,"result must>=than stack pointer"), frame_x86.cpp:295 johnc parents: 1204 diff changeset	320 assert((intptr_t*) result < fp(), "monitor end should be strictly below the frame pointer");
0 a61af66fc99e Initial load duke parents: diff changeset	321 return result;
a61af66fc99e Initial load duke parents: diff changeset	322 }
a61af66fc99e Initial load duke parents: diff changeset	323
a61af66fc99e Initial load duke parents: diff changeset	324 void frame::interpreter_frame_set_monitor_end(BasicObjectLock* value) {
a61af66fc99e Initial load duke parents: diff changeset	325 ((BasicObjectLock*)addr_at(interpreter_frame_monitor_block_top_offset)) = value;
a61af66fc99e Initial load duke parents: diff changeset	326 }
a61af66fc99e Initial load duke parents: diff changeset	327
a61af66fc99e Initial load duke parents: diff changeset	328 // Used by template based interpreter deoptimization
a61af66fc99e Initial load duke parents: diff changeset	329 void frame::interpreter_frame_set_last_sp(intptr_t* sp) {
a61af66fc99e Initial load duke parents: diff changeset	330 ((intptr_t*)addr_at(interpreter_frame_last_sp_offset)) = sp;
a61af66fc99e Initial load duke parents: diff changeset	331 }
a61af66fc99e Initial load duke parents: diff changeset	332 #endif // CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	333
a61af66fc99e Initial load duke parents: diff changeset	334 frame frame::sender_for_entry_frame(RegisterMap* map) const {
a61af66fc99e Initial load duke parents: diff changeset	335 assert(map != NULL, "map must be set");
a61af66fc99e Initial load duke parents: diff changeset	336 // Java frame called from C; skip all C frames and return top C
a61af66fc99e Initial load duke parents: diff changeset	337 // frame of that chunk as the sender
a61af66fc99e Initial load duke parents: diff changeset	338 JavaFrameAnchor* jfa = entry_frame_call_wrapper()->anchor();
a61af66fc99e Initial load duke parents: diff changeset	339 assert(!entry_frame_is_first(), "next Java fp must be non zero");
a61af66fc99e Initial load duke parents: diff changeset	340 assert(jfa->last_Java_sp() > sp(), "must be above this frame on stack");
a61af66fc99e Initial load duke parents: diff changeset	341 map->clear();
a61af66fc99e Initial load duke parents: diff changeset	342 assert(map->include_argument_oops(), "should be set by clear");
a61af66fc99e Initial load duke parents: diff changeset	343 if (jfa->last_Java_pc() != NULL ) {
a61af66fc99e Initial load duke parents: diff changeset	344 frame fr(jfa->last_Java_sp(), jfa->last_Java_fp(), jfa->last_Java_pc());
a61af66fc99e Initial load duke parents: diff changeset	345 return fr;
a61af66fc99e Initial load duke parents: diff changeset	346 }
a61af66fc99e Initial load duke parents: diff changeset	347 frame fr(jfa->last_Java_sp(), jfa->last_Java_fp());
a61af66fc99e Initial load duke parents: diff changeset	348 return fr;
a61af66fc99e Initial load duke parents: diff changeset	349 }
a61af66fc99e Initial load duke parents: diff changeset	350
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	351 //------------------------------------------------------------------------------
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	352 // frame::verify_deopt_original_pc
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	353 //
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	354 // Verifies the calculated original PC of a deoptimization PC for the
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	355 // given unextended SP. The unextended SP might also be the saved SP
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	356 // for MethodHandle call sites.
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	357 #if ASSERT
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	358 void frame::verify_deopt_original_pc(nmethod* nm, intptr_t* unextended_sp, bool is_method_handle_return) {
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	359 frame fr;
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	360
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	361 // This is ugly but it's better than to change {get,set}_original_pc
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	362 // to take an SP value as argument. And it's only a debugging
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	363 // method anyway.
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	364 fr._unextended_sp = unextended_sp;
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	365
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	366 address original_pc = nm->get_original_pc(&fr);
1748 3e8fbc61cee8 6978355: renaming for 6961697 twisti parents: 1681 diff changeset	367 assert(nm->insts_contains(original_pc), "original PC must be in nmethod");
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	368 assert(nm->is_method_handle_return(original_pc) == is_method_handle_return, "must be");
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	369 }
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	370 #endif
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	371
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	372 //------------------------------------------------------------------------------
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	373 // frame::adjust_unextended_sp
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	374 void frame::adjust_unextended_sp() {
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	375 // If we are returning to a compiled MethodHandle call site, the
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	376 // saved_fp will in fact be a saved value of the unextended SP. The
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	377 // simplest way to tell whether we are returning to such a call site
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	378 // is as follows:
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	379
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	380 nmethod* sender_nm = (_cb == NULL) ? NULL : _cb->as_nmethod_or_null();
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	381 if (sender_nm != NULL) {
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	382 // If the sender PC is a deoptimization point, get the original
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	383 // PC. For MethodHandle call site the unextended_sp is stored in
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	384 // saved_fp.
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	385 if (sender_nm->is_deopt_mh_entry(_pc)) {
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	386 DEBUG_ONLY(verify_deopt_mh_original_pc(sender_nm, _fp));
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	387 _unextended_sp = _fp;
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	388 }
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	389 else if (sender_nm->is_deopt_entry(_pc)) {
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	390 DEBUG_ONLY(verify_deopt_original_pc(sender_nm, _unextended_sp));
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	391 }
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	392 else if (sender_nm->is_method_handle_return(_pc)) {
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	393 _unextended_sp = _fp;
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	394 }
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	395 }
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	396 }
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	397
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	398 //------------------------------------------------------------------------------
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	399 // frame::update_map_with_saved_link
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	400 void frame::update_map_with_saved_link(RegisterMap* map, intptr_t** link_addr) {
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	401 // The interpreter and compiler(s) always save EBP/RBP in a known
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	402 // location on entry. We must record where that location is
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	403 // so this if EBP/RBP was live on callout from c2 we can find
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	404 // the saved copy no matter what it called.
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	405
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	406 // Since the interpreter always saves EBP/RBP if we record where it is then
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	407 // we don't have to always save EBP/RBP on entry and exit to c2 compiled
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	408 // code, on entry will be enough.
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	409 map->set_location(rbp->as_VMReg(), (address) link_addr);
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	410 #ifdef AMD64
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	411 // this is weird "H" ought to be at a higher address however the
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	412 // oopMaps seems to have the "H" regs at the same address and the
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	413 // vanilla register.
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	414 // XXXX make this go away
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	415 if (true) {
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	416 map->set_location(rbp->as_VMReg()->next(), (address) link_addr);
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	417 }
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	418 #endif // AMD64
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	419 }
167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	420
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	421
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	422 //------------------------------------------------------------------------------
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	423 // frame::sender_for_interpreter_frame
0 a61af66fc99e Initial load duke parents: diff changeset	424 frame frame::sender_for_interpreter_frame(RegisterMap* map) const {
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	425 // SP is the raw SP from the sender after adapter or interpreter
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	426 // extension.
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	427 intptr_t* sender_sp = this->sender_sp();
0 a61af66fc99e Initial load duke parents: diff changeset	428
a61af66fc99e Initial load duke parents: diff changeset	429 // This is the sp before any possible extension (adapter/locals).
a61af66fc99e Initial load duke parents: diff changeset	430 intptr_t* unextended_sp = interpreter_frame_sender_sp();
a61af66fc99e Initial load duke parents: diff changeset	431
a61af66fc99e Initial load duke parents: diff changeset	432 #ifdef COMPILER2
a61af66fc99e Initial load duke parents: diff changeset	433 if (map->update_map()) {
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	434 update_map_with_saved_link(map, (intptr_t**) addr_at(link_offset));
0 a61af66fc99e Initial load duke parents: diff changeset	435 }
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	436 #endif // COMPILER2
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	437
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	438 return frame(sender_sp, unextended_sp, link(), sender_pc());
0 a61af66fc99e Initial load duke parents: diff changeset	439 }
a61af66fc99e Initial load duke parents: diff changeset	440
a61af66fc99e Initial load duke parents: diff changeset	441
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	442 //------------------------------------------------------------------------------
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	443 // frame::sender_for_compiled_frame
0 a61af66fc99e Initial load duke parents: diff changeset	444 frame frame::sender_for_compiled_frame(RegisterMap* map) const {
a61af66fc99e Initial load duke parents: diff changeset	445 assert(map != NULL, "map must be set");
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	446 assert(!is_ricochet_frame(), "caller must handle this");
0 a61af66fc99e Initial load duke parents: diff changeset	447
a61af66fc99e Initial load duke parents: diff changeset	448 // frame owned by optimizing compiler
a61af66fc99e Initial load duke parents: diff changeset	449 assert(_cb->frame_size() >= 0, "must have non-zero frame size");
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	450 intptr_t* sender_sp = unextended_sp() + _cb->frame_size();
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	451 intptr_t* unextended_sp = sender_sp;
0 a61af66fc99e Initial load duke parents: diff changeset	452
a61af66fc99e Initial load duke parents: diff changeset	453 // On Intel the return_address is always the word on the stack
a61af66fc99e Initial load duke parents: diff changeset	454 address sender_pc = (address) *(sender_sp-1);
a61af66fc99e Initial load duke parents: diff changeset	455
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	456 // This is the saved value of EBP which may or may not really be an FP.
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	457 // It is only an FP if the sender is an interpreter frame (or C1?).
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	458 intptr_t saved_fp_addr = (intptr_t) (sender_sp - frame::sender_sp_offset);
1135 e66fd840cb6b 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164) twisti parents: 844 diff changeset	459
0 a61af66fc99e Initial load duke parents: diff changeset	460 if (map->update_map()) {
a61af66fc99e Initial load duke parents: diff changeset	461 // Tell GC to use argument oopmaps for some runtime stubs that need it.
a61af66fc99e Initial load duke parents: diff changeset	462 // For C1, the runtime stub might not have oop maps, so set this flag
a61af66fc99e Initial load duke parents: diff changeset	463 // outside of update_register_map.
a61af66fc99e Initial load duke parents: diff changeset	464 map->set_include_argument_oops(_cb->caller_must_gc_arguments(map->thread()));
a61af66fc99e Initial load duke parents: diff changeset	465 if (_cb->oop_maps() != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	466 OopMapSet::update_register_map(this, map);
a61af66fc99e Initial load duke parents: diff changeset	467 }
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	468
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	469 // Since the prolog does the save and restore of EBP there is no oopmap
0 a61af66fc99e Initial load duke parents: diff changeset	470 // for it so we must fill in its location as if there was an oopmap entry
a61af66fc99e Initial load duke parents: diff changeset	471 // since if our caller was compiled code there could be live jvm state in it.
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	472 update_map_with_saved_link(map, saved_fp_addr);
0 a61af66fc99e Initial load duke parents: diff changeset	473 }
a61af66fc99e Initial load duke parents: diff changeset	474
a61af66fc99e Initial load duke parents: diff changeset	475 assert(sender_sp != sp(), "must have changed");
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	476 return frame(sender_sp, unextended_sp, *saved_fp_addr, sender_pc);
0 a61af66fc99e Initial load duke parents: diff changeset	477 }
a61af66fc99e Initial load duke parents: diff changeset	478
1204 18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	479
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	480 //------------------------------------------------------------------------------
18a389214829 6921352: JSR 292 needs its own deopt handler twisti parents: 1201 diff changeset	481 // frame::sender
0 a61af66fc99e Initial load duke parents: diff changeset	482 frame frame::sender(RegisterMap* map) const {
a61af66fc99e Initial load duke parents: diff changeset	483 // Default is we done have to follow them. The sender_for_xxx will
a61af66fc99e Initial load duke parents: diff changeset	484 // update it accordingly
a61af66fc99e Initial load duke parents: diff changeset	485 map->set_include_argument_oops(false);
a61af66fc99e Initial load duke parents: diff changeset	486
a61af66fc99e Initial load duke parents: diff changeset	487 if (is_entry_frame()) return sender_for_entry_frame(map);
a61af66fc99e Initial load duke parents: diff changeset	488 if (is_interpreted_frame()) return sender_for_interpreter_frame(map);
a61af66fc99e Initial load duke parents: diff changeset	489 assert(_cb == CodeCache::find_blob(pc()),"Must be the same");
3363 167b70ff3abc 6939861: JVM should handle more conversion operations never parents: 3336 diff changeset	490 if (is_ricochet_frame()) return sender_for_ricochet_frame(map);
0 a61af66fc99e Initial load duke parents: diff changeset	491
a61af66fc99e Initial load duke parents: diff changeset	492 if (_cb != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	493 return sender_for_compiled_frame(map);
a61af66fc99e Initial load duke parents: diff changeset	494 }
a61af66fc99e Initial load duke parents: diff changeset	495 // Must be native-compiled frame, i.e. the marshaling code for native
a61af66fc99e Initial load duke parents: diff changeset	496 // methods that exists in the core system.
a61af66fc99e Initial load duke parents: diff changeset	497 return frame(sender_sp(), link(), sender_pc());
a61af66fc99e Initial load duke parents: diff changeset	498 }
a61af66fc99e Initial load duke parents: diff changeset	499
a61af66fc99e Initial load duke parents: diff changeset	500
a61af66fc99e Initial load duke parents: diff changeset	501 bool frame::interpreter_frame_equals_unpacked_fp(intptr_t* fp) {
a61af66fc99e Initial load duke parents: diff changeset	502 assert(is_interpreted_frame(), "must be interpreter frame");
a61af66fc99e Initial load duke parents: diff changeset	503 methodOop method = interpreter_frame_method();
a61af66fc99e Initial load duke parents: diff changeset	504 // When unpacking an optimized frame the frame pointer is
a61af66fc99e Initial load duke parents: diff changeset	505 // adjusted with:
a61af66fc99e Initial load duke parents: diff changeset	506 int diff = (method->max_locals() - method->size_of_parameters()) *
1506 2338d41fbd81 6943304: remove tagged stack interpreter twisti parents: 1204 diff changeset	507 Interpreter::stackElementWords;
0 a61af66fc99e Initial load duke parents: diff changeset	508 return _fp == (fp - diff);
a61af66fc99e Initial load duke parents: diff changeset	509 }
a61af66fc99e Initial load duke parents: diff changeset	510
a61af66fc99e Initial load duke parents: diff changeset	511 void frame::pd_gc_epilog() {
a61af66fc99e Initial load duke parents: diff changeset	512 // nothing done here now
a61af66fc99e Initial load duke parents: diff changeset	513 }
a61af66fc99e Initial load duke parents: diff changeset	514
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	515 bool frame::is_interpreted_frame_valid(JavaThread* thread) const {
0 a61af66fc99e Initial load duke parents: diff changeset	516 // QQQ
a61af66fc99e Initial load duke parents: diff changeset	517 #ifdef CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	518 #else
a61af66fc99e Initial load duke parents: diff changeset	519 assert(is_interpreted_frame(), "Not an interpreted frame");
a61af66fc99e Initial load duke parents: diff changeset	520 // These are reasonable sanity checks
a61af66fc99e Initial load duke parents: diff changeset	521 if (fp() == 0 \|\| (intptr_t(fp()) & (wordSize-1)) != 0) {
a61af66fc99e Initial load duke parents: diff changeset	522 return false;
a61af66fc99e Initial load duke parents: diff changeset	523 }
a61af66fc99e Initial load duke parents: diff changeset	524 if (sp() == 0 \|\| (intptr_t(sp()) & (wordSize-1)) != 0) {
a61af66fc99e Initial load duke parents: diff changeset	525 return false;
a61af66fc99e Initial load duke parents: diff changeset	526 }
a61af66fc99e Initial load duke parents: diff changeset	527 if (fp() + interpreter_frame_initial_sp_offset < sp()) {
a61af66fc99e Initial load duke parents: diff changeset	528 return false;
a61af66fc99e Initial load duke parents: diff changeset	529 }
a61af66fc99e Initial load duke parents: diff changeset	530 // These are hacks to keep us out of trouble.
a61af66fc99e Initial load duke parents: diff changeset	531 // The problem with these is that they mask other problems
a61af66fc99e Initial load duke parents: diff changeset	532 if (fp() <= sp()) { // this attempts to deal with unsigned comparison above
a61af66fc99e Initial load duke parents: diff changeset	533 return false;
a61af66fc99e Initial load duke parents: diff changeset	534 }
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	535
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	536 // do some validation of frame elements
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	537
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	538 // first the method
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	539
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	540 methodOop m = *interpreter_frame_method_addr();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	541
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	542 // validate the method we'd find in this potential sender
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	543 if (!Universe::heap()->is_valid_method(m)) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	544
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	545 // stack frames shouldn't be much larger than max_stack elements
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	546
1506 2338d41fbd81 6943304: remove tagged stack interpreter twisti parents: 1204 diff changeset	547 if (fp() - sp() > 1024 + m->max_stack()*Interpreter::stackElementSize) {
0 a61af66fc99e Initial load duke parents: diff changeset	548 return false;
a61af66fc99e Initial load duke parents: diff changeset	549 }
107 93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	550
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	551 // validate bci/bcx
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	552
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	553 intptr_t bcx = interpreter_frame_bcx();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	554 if (m->validate_bci_from_bcx(bcx) < 0) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	555 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	556 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	557
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	558 // validate constantPoolCacheOop
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	559
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	560 constantPoolCacheOop cp = *interpreter_frame_cache_addr();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	561
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	562 if (cp == NULL \|\|
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	563 !Space::is_aligned(cp) \|\|
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	564 !Universe::heap()->is_permanent((void*)cp)) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	565
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	566 // validate locals
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	567
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	568 address locals = (address) *interpreter_frame_locals_addr();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	569
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	570 if (locals > thread->stack_base() \|\| locals < (address) fp()) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	571
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	572 // We'd have to be pretty unlucky to be mislead at this point
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on sgoldman parents: 0 diff changeset	573
0 a61af66fc99e Initial load duke parents: diff changeset	574 #endif // CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	575 return true;
a61af66fc99e Initial load duke parents: diff changeset	576 }
a61af66fc99e Initial load duke parents: diff changeset	577
a61af66fc99e Initial load duke parents: diff changeset	578 BasicType frame::interpreter_frame_result(oop* oop_result, jvalue* value_result) {
a61af66fc99e Initial load duke parents: diff changeset	579 #ifdef CC_INTERP
1681 126ea7725993 6953477: Increase portability and flexibility of building Hotspot bobv parents: 1552 diff changeset	580 // Needed for JVMTI. The result should always be in the
126ea7725993 6953477: Increase portability and flexibility of building Hotspot bobv parents: 1552 diff changeset	581 // interpreterState object
0 a61af66fc99e Initial load duke parents: diff changeset	582 interpreterState istate = get_interpreterState();
a61af66fc99e Initial load duke parents: diff changeset	583 #endif // CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	584 assert(is_interpreted_frame(), "interpreted frame expected");
a61af66fc99e Initial load duke parents: diff changeset	585 methodOop method = interpreter_frame_method();
a61af66fc99e Initial load duke parents: diff changeset	586 BasicType type = method->result_type();
a61af66fc99e Initial load duke parents: diff changeset	587
a61af66fc99e Initial load duke parents: diff changeset	588 intptr_t* tos_addr;
a61af66fc99e Initial load duke parents: diff changeset	589 if (method->is_native()) {
a61af66fc99e Initial load duke parents: diff changeset	590 // Prior to calling into the runtime to report the method_exit the possible
a61af66fc99e Initial load duke parents: diff changeset	591 // return value is pushed to the native stack. If the result is a jfloat/jdouble
a61af66fc99e Initial load duke parents: diff changeset	592 // then ST0 is saved before EAX/EDX. See the note in generate_native_result
a61af66fc99e Initial load duke parents: diff changeset	593 tos_addr = (intptr_t*)sp();
a61af66fc99e Initial load duke parents: diff changeset	594 if (type == T_FLOAT \|\| type == T_DOUBLE) {
a61af66fc99e Initial load duke parents: diff changeset	595 // QQQ seems like this code is equivalent on the two platforms
a61af66fc99e Initial load duke parents: diff changeset	596 #ifdef AMD64
a61af66fc99e Initial load duke parents: diff changeset	597 // This is times two because we do a push(ltos) after pushing XMM0
a61af66fc99e Initial load duke parents: diff changeset	598 // and that takes two interpreter stack slots.
1506 2338d41fbd81 6943304: remove tagged stack interpreter twisti parents: 1204 diff changeset	599 tos_addr += 2 * Interpreter::stackElementWords;
0 a61af66fc99e Initial load duke parents: diff changeset	600 #else
a61af66fc99e Initial load duke parents: diff changeset	601 tos_addr += 2;
a61af66fc99e Initial load duke parents: diff changeset	602 #endif // AMD64
a61af66fc99e Initial load duke parents: diff changeset	603 }
a61af66fc99e Initial load duke parents: diff changeset	604 } else {
a61af66fc99e Initial load duke parents: diff changeset	605 tos_addr = (intptr_t*)interpreter_frame_tos_address();
a61af66fc99e Initial load duke parents: diff changeset	606 }
a61af66fc99e Initial load duke parents: diff changeset	607
a61af66fc99e Initial load duke parents: diff changeset	608 switch (type) {
a61af66fc99e Initial load duke parents: diff changeset	609 case T_OBJECT :
a61af66fc99e Initial load duke parents: diff changeset	610 case T_ARRAY : {
a61af66fc99e Initial load duke parents: diff changeset	611 oop obj;
a61af66fc99e Initial load duke parents: diff changeset	612 if (method->is_native()) {
a61af66fc99e Initial load duke parents: diff changeset	613 #ifdef CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	614 obj = istate->_oop_temp;
a61af66fc99e Initial load duke parents: diff changeset	615 #else
a61af66fc99e Initial load duke parents: diff changeset	616 obj = (oop) at(interpreter_frame_oop_temp_offset);
a61af66fc99e Initial load duke parents: diff changeset	617 #endif // CC_INTERP
a61af66fc99e Initial load duke parents: diff changeset	618 } else {
a61af66fc99e Initial load duke parents: diff changeset	619 oop* obj_p = (oop*)tos_addr;
a61af66fc99e Initial load duke parents: diff changeset	620 obj = (obj_p == NULL) ? (oop)NULL : *obj_p;
a61af66fc99e Initial load duke parents: diff changeset	621 }
a61af66fc99e Initial load duke parents: diff changeset	622 assert(obj == NULL \|\| Universe::heap()->is_in(obj), "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	623 *oop_result = obj;
a61af66fc99e Initial load duke parents: diff changeset	624 break;
a61af66fc99e Initial load duke parents: diff changeset	625 }
a61af66fc99e Initial load duke parents: diff changeset	626 case T_BOOLEAN : value_result->z = (jboolean)tos_addr; break;
a61af66fc99e Initial load duke parents: diff changeset	627 case T_BYTE : value_result->b = (jbyte)tos_addr; break;
a61af66fc99e Initial load duke parents: diff changeset	628 case T_CHAR : value_result->c = (jchar)tos_addr; break;
a61af66fc99e Initial load duke parents: diff changeset	629 case T_SHORT : value_result->s = (jshort)tos_addr; break;
a61af66fc99e Initial load duke parents: diff changeset	630 case T_INT : value_result->i = (jint)tos_addr; break;
a61af66fc99e Initial load duke parents: diff changeset	631 case T_LONG : value_result->j = (jlong)tos_addr; break;
a61af66fc99e Initial load duke parents: diff changeset	632 case T_FLOAT : {
a61af66fc99e Initial load duke parents: diff changeset	633 #ifdef AMD64
a61af66fc99e Initial load duke parents: diff changeset	634 value_result->f = (jfloat)tos_addr;
a61af66fc99e Initial load duke parents: diff changeset	635 #else
a61af66fc99e Initial load duke parents: diff changeset	636 if (method->is_native()) {
a61af66fc99e Initial load duke parents: diff changeset	637 jdouble d = (jdouble)tos_addr; // Result was in ST0 so need to convert to jfloat
a61af66fc99e Initial load duke parents: diff changeset	638 value_result->f = (jfloat)d;
a61af66fc99e Initial load duke parents: diff changeset	639 } else {
a61af66fc99e Initial load duke parents: diff changeset	640 value_result->f = (jfloat)tos_addr;
a61af66fc99e Initial load duke parents: diff changeset	641 }
a61af66fc99e Initial load duke parents: diff changeset	642 #endif // AMD64
a61af66fc99e Initial load duke parents: diff changeset	643 break;
a61af66fc99e Initial load duke parents: diff changeset	644 }
a61af66fc99e Initial load duke parents: diff changeset	645 case T_DOUBLE : value_result->d = (jdouble)tos_addr; break;
a61af66fc99e Initial load duke parents: diff changeset	646 case T_VOID : /* Nothing to do */ break;
a61af66fc99e Initial load duke parents: diff changeset	647 default : ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	648 }
a61af66fc99e Initial load duke parents: diff changeset	649
a61af66fc99e Initial load duke parents: diff changeset	650 return type;
a61af66fc99e Initial load duke parents: diff changeset	651 }
a61af66fc99e Initial load duke parents: diff changeset	652
a61af66fc99e Initial load duke parents: diff changeset	653
a61af66fc99e Initial load duke parents: diff changeset	654 intptr_t* frame::interpreter_frame_tos_at(jint offset) const {
a61af66fc99e Initial load duke parents: diff changeset	655 int index = (Interpreter::expr_offset_in_bytes(offset)/wordSize);
a61af66fc99e Initial load duke parents: diff changeset	656 return &interpreter_frame_tos_address()[index];
a61af66fc99e Initial load duke parents: diff changeset	657 }
3336 2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	658
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	659 #ifdef ASSERT
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	660
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	661 #define DESCRIBE_FP_OFFSET(name) \
3365 3cfb240033d1 7043301: assert(locals < caller->fp() \|\| locals > (caller->fp() + 16)) failed: locals in save area never parents: 3363 diff changeset	662 values.describe(frame_no, fp() + frame::name##_offset, #name)
3336 2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	663
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	664 void frame::describe_pd(FrameValues& values, int frame_no) {
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	665 if (is_interpreted_frame()) {
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	666 DESCRIBE_FP_OFFSET(interpreter_frame_sender_sp);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	667 DESCRIBE_FP_OFFSET(interpreter_frame_last_sp);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	668 DESCRIBE_FP_OFFSET(interpreter_frame_method);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	669 DESCRIBE_FP_OFFSET(interpreter_frame_mdx);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	670 DESCRIBE_FP_OFFSET(interpreter_frame_cache);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	671 DESCRIBE_FP_OFFSET(interpreter_frame_locals);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	672 DESCRIBE_FP_OFFSET(interpreter_frame_bcx);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	673 DESCRIBE_FP_OFFSET(interpreter_frame_initial_sp);
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	674 }
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	675
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	676 }
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp never parents: 1972 diff changeset	677 #endif
3931 5432047c7db7 7087445: Improve platform independence of JSR292 shared code bdelsart parents: 3365 diff changeset	678
5432047c7db7 7087445: Improve platform independence of JSR292 shared code bdelsart parents: 3365 diff changeset	679 intptr_t *frame::initial_deoptimization_info() {
5432047c7db7 7087445: Improve platform independence of JSR292 shared code bdelsart parents: 3365 diff changeset	680 // used to reset the saved FP
5432047c7db7 7087445: Improve platform independence of JSR292 shared code bdelsart parents: 3365 diff changeset	681 return fp();
5432047c7db7 7087445: Improve platform independence of JSR292 shared code bdelsart parents: 3365 diff changeset	682 }

Mercurial > hg > truffle

annotate src/cpu/x86/vm/frame_x86.cpp @ 4668:3dbcd1013cc8