author | tschatzl |
Thu, 24 Oct 2019 11:08:16 +0200 | |
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/* |
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* Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#ifndef SHARE_CODE_NMETHOD_HPP |
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#define SHARE_CODE_NMETHOD_HPP |
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#include "code/compiledMethod.hpp" |
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class DepChange; |
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class DirectiveSet; |
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class DebugInformationRecorder; |
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// nmethods (native methods) are the compiled code versions of Java methods. |
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// |
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// An nmethod contains: |
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// - header (the nmethod structure) |
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// [Relocation] |
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// - relocation information |
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// - constant part (doubles, longs and floats used in nmethod) |
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// - oop table |
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// [Code] |
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// - code body |
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// - exception handler |
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// - stub code |
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// [Debugging information] |
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// - oop array |
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// - data array |
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// - pcs |
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// [Exception handler table] |
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// - handler entry point array |
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// [Implicit Null Pointer exception table] |
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// - implicit null table array |
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// [Speculations] |
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// - encoded speculations array |
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// [JVMCINMethodData] |
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// - meta data for JVMCI compiled nmethod |
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#if INCLUDE_JVMCI |
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class FailedSpeculation; |
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class JVMCINMethodData; |
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#endif |
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class nmethod : public CompiledMethod { |
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friend class VMStructs; |
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friend class JVMCIVMStructs; |
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friend class NMethodSweeper; |
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friend class CodeCache; // scavengable oops |
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friend class JVMCINMethodData; |
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// Shared fields for all nmethod's |
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int _entry_bci; // != InvocationEntryBci if this nmethod is an on-stack replacement method |
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jmethodID _jmethod_id; // Cache of method()->jmethod_id() |
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// To support simple linked-list chaining of nmethods: |
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nmethod* _osr_link; // from InstanceKlass::osr_nmethods_head |
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// STW two-phase nmethod root processing helpers. |
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// |
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// When determining liveness of a given nmethod to do code cache unloading, |
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// some collectors need to to different things depending on whether the nmethods |
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// need to absolutely be kept alive during root processing; "strong"ly reachable |
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// nmethods are known to be kept alive at root processing, but the liveness of |
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// "weak"ly reachable ones is to be determined later. |
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// |
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// We want to allow strong and weak processing of nmethods by different threads |
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// at the same time without heavy synchronization. Additional constraints are |
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// to make sure that every nmethod is processed a minimal amount of time, and |
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// nmethods themselves are always iterated at most once at a particular time. |
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// |
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// Note that strong processing work must be a superset of weak processing work |
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// for this code to work. |
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// |
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// We store state and claim information in the _oops_do_mark_link member, using |
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// the two LSBs for the state and the remaining upper bits for linking together |
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// nmethods that were already visited. |
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// The last element is self-looped, i.e. points to itself to avoid some special |
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// "end-of-list" sentinel value. |
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// |
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// _oops_do_mark_link special values: |
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// |
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// _oops_do_mark_link == NULL: the nmethod has not been visited at all yet, i.e. |
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// is Unclaimed. |
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// |
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// For other values, its lowest two bits indicate the following states of the nmethod: |
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// |
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// weak_request (WR): the nmethod has been claimed by a thread for weak processing |
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// weak_done (WD): weak processing has been completed for this nmethod. |
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// strong_request (SR): the nmethod has been found to need strong processing while |
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// being weak processed. |
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// strong_done (SD): strong processing has been completed for this nmethod . |
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// |
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// The following shows the _only_ possible progressions of the _oops_do_mark_link |
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// pointer. |
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// |
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// Given |
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// N as the nmethod |
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// X the current next value of _oops_do_mark_link |
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// |
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// Unclaimed (C)-> N|WR (C)-> X|WD: the nmethod has been processed weakly by |
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// a single thread. |
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// Unclaimed (C)-> N|WR (C)-> X|WD (O)-> X|SD: after weak processing has been |
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// completed (as above) another thread found that the nmethod needs strong |
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// processing after all. |
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// Unclaimed (C)-> N|WR (O)-> N|SR (C)-> X|SD: during weak processing another |
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// thread finds that the nmethod needs strong processing, marks it as such and |
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// terminates. The original thread completes strong processing. |
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// Unclaimed (C)-> N|SD (C)-> X|SD: the nmethod has been processed strongly from |
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// the beginning by a single thread. |
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// |
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// "|" describes the concatentation of bits in _oops_do_mark_link. |
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// |
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// The diagram also describes the threads responsible for changing the nmethod to |
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// the next state by marking the _transition_ with (C) and (O), which mean "current" |
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// and "other" thread respectively. |
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// |
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struct oops_do_mark_link; // Opaque data type. |
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// States used for claiming nmethods during root processing. |
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static const uint claim_weak_request_tag = 0; |
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static const uint claim_weak_done_tag = 1; |
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static const uint claim_strong_request_tag = 2; |
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static const uint claim_strong_done_tag = 3; |
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static oops_do_mark_link* mark_link(nmethod* nm, uint tag) { |
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assert(tag <= claim_strong_done_tag, "invalid tag %u", tag); |
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148 |
assert(is_aligned(nm, 4), "nmethod pointer must have zero lower two LSB"); |
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149 |
return (oops_do_mark_link*)(((uintptr_t)nm & ~0x3) | tag); |
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150 |
} |
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151 |
|
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152 |
static uint extract_state(oops_do_mark_link* link) { |
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153 |
return (uint)((uintptr_t)link & 0x3); |
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154 |
} |
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155 |
|
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156 |
static nmethod* extract_nmethod(oops_do_mark_link* link) { |
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157 |
return (nmethod*)((uintptr_t)link & ~0x3); |
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158 |
} |
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|
159 |
|
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160 |
void oops_do_log_change(const char* state); |
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161 |
|
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162 |
static bool oops_do_has_weak_request(oops_do_mark_link* next) { |
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163 |
return extract_state(next) == claim_weak_request_tag; |
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164 |
} |
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|
165 |
|
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166 |
static bool oops_do_has_any_strong_state(oops_do_mark_link* next) { |
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167 |
return extract_state(next) >= claim_strong_request_tag; |
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168 |
} |
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|
169 |
|
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170 |
// Attempt Unclaimed -> N|WR transition. Returns true if successful. |
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171 |
bool oops_do_try_claim_weak_request(); |
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172 |
|
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173 |
// Attempt Unclaimed -> N|SD transition. Returns the current link. |
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174 |
oops_do_mark_link* oops_do_try_claim_strong_done(); |
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175 |
// Attempt N|WR -> X|WD transition. Returns NULL if successful, X otherwise. |
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176 |
nmethod* oops_do_try_add_to_list_as_weak_done(); |
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177 |
|
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178 |
// Attempt X|WD -> N|SR transition. Returns the current link. |
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179 |
oops_do_mark_link* oops_do_try_add_strong_request(oops_do_mark_link* next); |
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180 |
// Attempt X|WD -> X|SD transition. Returns true if successful. |
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181 |
bool oops_do_try_claim_weak_done_as_strong_done(oops_do_mark_link* next); |
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182 |
|
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183 |
// Do the N|SD -> X|SD transition. |
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184 |
void oops_do_add_to_list_as_strong_done(); |
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185 |
|
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186 |
// Sets this nmethod as strongly claimed (as part of N|SD -> X|SD and N|SR -> X|SD |
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187 |
// transitions). |
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188 |
void oops_do_set_strong_done(nmethod* old_head); |
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189 |
|
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190 |
static nmethod* volatile _oops_do_mark_nmethods; |
58777
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191 |
oops_do_mark_link* volatile _oops_do_mark_link; |
1 | 192 |
|
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193 |
// offsets for entry points |
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194 |
address _entry_point; // entry point with class check |
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195 |
address _verified_entry_point; // entry point without class check |
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196 |
address _osr_entry_point; // entry point for on stack replacement |
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197 |
|
1 | 198 |
// Offsets for different nmethod parts |
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199 |
int _exception_offset; |
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200 |
// Offset of the unwind handler if it exists |
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201 |
int _unwind_handler_offset; |
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|
202 |
|
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203 |
int _consts_offset; |
1 | 204 |
int _stub_offset; |
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205 |
int _oops_offset; // offset to where embedded oop table begins (inside data) |
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206 |
int _metadata_offset; // embedded meta data table |
1 | 207 |
int _scopes_data_offset; |
208 |
int _scopes_pcs_offset; |
|
209 |
int _dependencies_offset; |
|
210 |
int _handler_table_offset; |
|
211 |
int _nul_chk_table_offset; |
|
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|
212 |
#if INCLUDE_JVMCI |
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213 |
int _speculations_offset; |
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214 |
int _jvmci_data_offset; |
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215 |
#endif |
1 | 216 |
int _nmethod_end_offset; |
217 |
||
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218 |
int code_offset() const { return (address) code_begin() - header_begin(); } |
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219 |
|
1 | 220 |
// location in frame (offset for sp) that deopt can store the original |
221 |
// pc during a deopt. |
|
222 |
int _orig_pc_offset; |
|
223 |
||
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224 |
int _compile_id; // which compilation made this nmethod |
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225 |
int _comp_level; // compilation level |
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|
226 |
|
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227 |
// protected by CodeCache_lock |
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|
228 |
bool _has_flushed_dependencies; // Used for maintenance of dependencies (CodeCache_lock) |
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|
229 |
|
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|
230 |
// used by jvmti to track if an unload event has been posted for this nmethod. |
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|
231 |
bool _unload_reported; |
1 | 232 |
|
58226 | 233 |
// Protected by CompiledMethod_lock |
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|
234 |
volatile signed char _state; // {not_installed, in_use, not_entrant, zombie, unloaded} |
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235 |
|
6268 | 236 |
#ifdef ASSERT |
237 |
bool _oops_are_stale; // indicates that it's no longer safe to access oops section |
|
238 |
#endif |
|
239 |
||
23491 | 240 |
#if INCLUDE_RTM_OPT |
241 |
// RTM state at compile time. Used during deoptimization to decide |
|
242 |
// whether to restart collecting RTM locking abort statistic again. |
|
243 |
RTMState _rtm_state; |
|
244 |
#endif |
|
245 |
||
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|
246 |
// Nmethod Flushing lock. If non-zero, then the nmethod is not removed |
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|
247 |
// and is not made into a zombie. However, once the nmethod is made into |
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|
248 |
// a zombie, it will be locked one final time if CompiledMethodUnload |
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|
249 |
// event processing needs to be done. |
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|
250 |
volatile jint _lock_count; |
1 | 251 |
|
252 |
// not_entrant method removal. Each mark_sweep pass will update |
|
253 |
// this mark to current sweep invocation count if it is seen on the |
|
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|
254 |
// stack. An not_entrant method can be removed when there are no |
1 | 255 |
// more activations, i.e., when the _stack_traversal_mark is less than |
256 |
// current sweep traversal index. |
|
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|
257 |
volatile long _stack_traversal_mark; |
1 | 258 |
|
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|
259 |
// The _hotness_counter indicates the hotness of a method. The higher |
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|
260 |
// the value the hotter the method. The hotness counter of a nmethod is |
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|
261 |
// set to [(ReservedCodeCacheSize / (1024 * 1024)) * 2] each time the method |
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|
262 |
// is active while stack scanning (mark_active_nmethods()). The hotness |
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|
263 |
// counter is decreased (by 1) while sweeping. |
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|
264 |
int _hotness_counter; |
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|
265 |
|
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|
266 |
// Local state used to keep track of whether unloading is happening or not |
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|
267 |
volatile uint8_t _is_unloading_state; |
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|
268 |
|
7444 | 269 |
// These are used for compiled synchronized native methods to |
1 | 270 |
// locate the owner and stack slot for the BasicLock so that we can |
271 |
// properly revoke the bias of the owner if necessary. They are |
|
272 |
// needed because there is no debug information for compiled native |
|
273 |
// wrappers and the oop maps are insufficient to allow |
|
274 |
// frame::retrieve_receiver() to work. Currently they are expected |
|
275 |
// to be byte offsets from the Java stack pointer for maximum code |
|
276 |
// sharing between platforms. Note that currently biased locking |
|
277 |
// will never cause Class instances to be biased but this code |
|
278 |
// handles the static synchronized case as well. |
|
7444 | 279 |
// JVMTI's GetLocalInstance() also uses these offsets to find the receiver |
280 |
// for non-static native wrapper frames. |
|
281 |
ByteSize _native_receiver_sp_offset; |
|
282 |
ByteSize _native_basic_lock_sp_offset; |
|
1 | 283 |
|
284 |
friend class nmethodLocker; |
|
285 |
||
286 |
// For native wrappers |
|
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287 |
nmethod(Method* method, |
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|
288 |
CompilerType type, |
1 | 289 |
int nmethod_size, |
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|
290 |
int compile_id, |
1 | 291 |
CodeOffsets* offsets, |
292 |
CodeBuffer *code_buffer, |
|
293 |
int frame_size, |
|
294 |
ByteSize basic_lock_owner_sp_offset, /* synchronized natives only */ |
|
295 |
ByteSize basic_lock_sp_offset, /* synchronized natives only */ |
|
296 |
OopMapSet* oop_maps); |
|
297 |
||
298 |
// Creation support |
|
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299 |
nmethod(Method* method, |
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|
300 |
CompilerType type, |
1 | 301 |
int nmethod_size, |
302 |
int compile_id, |
|
303 |
int entry_bci, |
|
304 |
CodeOffsets* offsets, |
|
305 |
int orig_pc_offset, |
|
306 |
DebugInformationRecorder *recorder, |
|
307 |
Dependencies* dependencies, |
|
308 |
CodeBuffer *code_buffer, |
|
309 |
int frame_size, |
|
310 |
OopMapSet* oop_maps, |
|
311 |
ExceptionHandlerTable* handler_table, |
|
312 |
ImplicitExceptionTable* nul_chk_table, |
|
313 |
AbstractCompiler* compiler, |
|
33160
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|
314 |
int comp_level |
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#if INCLUDE_JVMCI |
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, char* speculations, |
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int speculations_len, |
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int jvmci_data_size |
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319 |
#endif |
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320 |
); |
1 | 321 |
|
322 |
// helper methods |
|
26796 | 323 |
void* operator new(size_t size, int nmethod_size, int comp_level) throw(); |
1 | 324 |
|
325 |
const char* reloc_string_for(u_char* begin, u_char* end); |
|
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326 |
|
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bool try_transition(int new_state); |
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328 |
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// Returns true if this thread changed the state of the nmethod or |
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// false if another thread performed the transition. |
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bool make_not_entrant_or_zombie(int state); |
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332 |
bool make_entrant() { Unimplemented(); return false; } |
1 | 333 |
void inc_decompile_count(); |
334 |
||
335 |
// Inform external interfaces that a compiled method has been unloaded |
|
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336 |
void post_compiled_method_unload(); |
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337 |
|
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338 |
// Initailize fields to their default values |
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339 |
void init_defaults(); |
1 | 340 |
|
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341 |
// Offsets |
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int content_offset() const { return content_begin() - header_begin(); } |
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int data_offset() const { return _data_offset; } |
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344 |
|
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address header_end() const { return (address) header_begin() + header_size(); } |
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346 |
|
1 | 347 |
public: |
348 |
// create nmethod with entry_bci |
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349 |
static nmethod* new_nmethod(const methodHandle& method, |
1 | 350 |
int compile_id, |
351 |
int entry_bci, |
|
352 |
CodeOffsets* offsets, |
|
353 |
int orig_pc_offset, |
|
354 |
DebugInformationRecorder* recorder, |
|
355 |
Dependencies* dependencies, |
|
356 |
CodeBuffer *code_buffer, |
|
357 |
int frame_size, |
|
358 |
OopMapSet* oop_maps, |
|
359 |
ExceptionHandlerTable* handler_table, |
|
360 |
ImplicitExceptionTable* nul_chk_table, |
|
361 |
AbstractCompiler* compiler, |
|
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int comp_level |
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363 |
#if INCLUDE_JVMCI |
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, char* speculations = NULL, |
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365 |
int speculations_len = 0, |
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366 |
int nmethod_mirror_index = -1, |
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367 |
const char* nmethod_mirror_name = NULL, |
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368 |
FailedSpeculation** failed_speculations = NULL |
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369 |
#endif |
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370 |
); |
1 | 371 |
|
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372 |
// Only used for unit tests. |
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373 |
nmethod() |
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374 |
: CompiledMethod(), |
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375 |
_is_unloading_state(0), |
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376 |
_native_receiver_sp_offset(in_ByteSize(-1)), |
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377 |
_native_basic_lock_sp_offset(in_ByteSize(-1)) {} |
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|
378 |
|
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|
379 |
|
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380 |
static nmethod* new_native_nmethod(const methodHandle& method, |
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381 |
int compile_id, |
1 | 382 |
CodeBuffer *code_buffer, |
383 |
int vep_offset, |
|
384 |
int frame_complete, |
|
385 |
int frame_size, |
|
386 |
ByteSize receiver_sp_offset, |
|
387 |
ByteSize basic_lock_sp_offset, |
|
388 |
OopMapSet* oop_maps); |
|
389 |
||
390 |
// type info |
|
391 |
bool is_nmethod() const { return true; } |
|
392 |
bool is_osr_method() const { return _entry_bci != InvocationEntryBci; } |
|
393 |
||
394 |
// boundaries for different parts |
|
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395 |
address consts_begin () const { return header_begin() + _consts_offset ; } |
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address consts_end () const { return code_begin() ; } |
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397 |
address stub_begin () const { return header_begin() + _stub_offset ; } |
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398 |
address stub_end () const { return header_begin() + _oops_offset ; } |
4752 | 399 |
address exception_begin () const { return header_begin() + _exception_offset ; } |
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400 |
address unwind_handler_begin () const { return _unwind_handler_offset != -1 ? (header_begin() + _unwind_handler_offset) : NULL; } |
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401 |
oop* oops_begin () const { return (oop*) (header_begin() + _oops_offset) ; } |
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402 |
oop* oops_end () const { return (oop*) (header_begin() + _metadata_offset) ; } |
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403 |
|
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404 |
Metadata** metadata_begin () const { return (Metadata**) (header_begin() + _metadata_offset) ; } |
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405 |
Metadata** metadata_end () const { return (Metadata**) _scopes_data_begin; } |
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406 |
|
4752 | 407 |
address scopes_data_end () const { return header_begin() + _scopes_pcs_offset ; } |
408 |
PcDesc* scopes_pcs_begin () const { return (PcDesc*)(header_begin() + _scopes_pcs_offset ); } |
|
409 |
PcDesc* scopes_pcs_end () const { return (PcDesc*)(header_begin() + _dependencies_offset) ; } |
|
410 |
address dependencies_begin () const { return header_begin() + _dependencies_offset ; } |
|
411 |
address dependencies_end () const { return header_begin() + _handler_table_offset ; } |
|
412 |
address handler_table_begin () const { return header_begin() + _handler_table_offset ; } |
|
413 |
address handler_table_end () const { return header_begin() + _nul_chk_table_offset ; } |
|
414 |
address nul_chk_table_begin () const { return header_begin() + _nul_chk_table_offset ; } |
|
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415 |
#if INCLUDE_JVMCI |
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416 |
address nul_chk_table_end () const { return header_begin() + _speculations_offset ; } |
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417 |
address speculations_begin () const { return header_begin() + _speculations_offset ; } |
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418 |
address speculations_end () const { return header_begin() + _jvmci_data_offset ; } |
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|
419 |
address jvmci_data_begin () const { return header_begin() + _jvmci_data_offset ; } |
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|
420 |
address jvmci_data_end () const { return header_begin() + _nmethod_end_offset ; } |
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|
421 |
#else |
4752 | 422 |
address nul_chk_table_end () const { return header_begin() + _nmethod_end_offset ; } |
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423 |
#endif |
1 | 424 |
|
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425 |
// Sizes |
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426 |
int oops_size () const { return (address) oops_end () - (address) oops_begin (); } |
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int metadata_size () const { return (address) metadata_end () - (address) metadata_begin (); } |
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428 |
int dependencies_size () const { return dependencies_end () - dependencies_begin (); } |
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|
429 |
#if INCLUDE_JVMCI |
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|
430 |
int speculations_size () const { return speculations_end () - speculations_begin (); } |
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|
431 |
int jvmci_data_size () const { return jvmci_data_end () - jvmci_data_begin (); } |
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|
432 |
#endif |
1 | 433 |
|
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|
434 |
int oops_count() const { assert(oops_size() % oopSize == 0, ""); return (oops_size() / oopSize) + 1; } |
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|
435 |
int metadata_count() const { assert(metadata_size() % wordSize == 0, ""); return (metadata_size() / wordSize) + 1; } |
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|
436 |
|
1 | 437 |
int total_size () const; |
438 |
||
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|
439 |
void dec_hotness_counter() { _hotness_counter--; } |
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|
440 |
void set_hotness_counter(int val) { _hotness_counter = val; } |
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|
441 |
int hotness_counter() const { return _hotness_counter; } |
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|
442 |
|
5686
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|
443 |
// Containment |
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|
444 |
bool oops_contains (oop* addr) const { return oops_begin () <= addr && addr < oops_end (); } |
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|
445 |
bool metadata_contains (Metadata** addr) const { return metadata_begin () <= addr && addr < metadata_end (); } |
1 | 446 |
bool scopes_data_contains (address addr) const { return scopes_data_begin () <= addr && addr < scopes_data_end (); } |
447 |
bool scopes_pcs_contains (PcDesc* addr) const { return scopes_pcs_begin () <= addr && addr < scopes_pcs_end (); } |
|
448 |
||
449 |
// entry points |
|
450 |
address entry_point() const { return _entry_point; } // normal entry point |
|
451 |
address verified_entry_point() const { return _verified_entry_point; } // if klass is correct |
|
452 |
||
453 |
// flag accessing and manipulation |
|
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|
454 |
bool is_not_installed() const { return _state == not_installed; } |
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|
455 |
bool is_in_use() const { return _state <= in_use; } |
57490
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|
456 |
bool is_alive() const { return _state < unloaded; } |
5924
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|
457 |
bool is_not_entrant() const { return _state == not_entrant; } |
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|
458 |
bool is_zombie() const { return _state == zombie; } |
36802
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36300
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|
459 |
bool is_unloaded() const { return _state == unloaded; } |
18b1db5a7e70
8023191: OSR nmethods should be flushed to free space in CodeCache
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|
460 |
|
52659
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|
461 |
void clear_unloading_state(); |
8b26bd8b1832
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|
462 |
virtual bool is_unloading(); |
52385
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|
463 |
virtual void do_unloading(bool unloading_occurred); |
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|
464 |
|
23491 | 465 |
#if INCLUDE_RTM_OPT |
466 |
// rtm state accessing and manipulating |
|
467 |
RTMState rtm_state() const { return _rtm_state; } |
|
468 |
void set_rtm_state(RTMState state) { _rtm_state = state; } |
|
469 |
#endif |
|
470 |
||
58226 | 471 |
bool make_in_use() { |
472 |
return try_transition(in_use); |
|
473 |
} |
|
4479
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|
474 |
// Make the nmethod non entrant. The nmethod will continue to be |
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diff
changeset
|
475 |
// alive. It is used when an uncommon trap happens. Returns true |
5686407cde7a
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
3919
diff
changeset
|
476 |
// if this thread changed the state of the nmethod or false if |
5686407cde7a
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
3919
diff
changeset
|
477 |
// another thread performed the transition. |
26580
8cca7fbe77b8
8056154: JVM crash with EXCEPTION_ACCESS_VIOLATION when there are many threads running
iveresov
parents:
25740
diff
changeset
|
478 |
bool make_not_entrant() { |
8cca7fbe77b8
8056154: JVM crash with EXCEPTION_ACCESS_VIOLATION when there are many threads running
iveresov
parents:
25740
diff
changeset
|
479 |
assert(!method()->is_method_handle_intrinsic(), "Cannot make MH intrinsic not entrant"); |
8cca7fbe77b8
8056154: JVM crash with EXCEPTION_ACCESS_VIOLATION when there are many threads running
iveresov
parents:
25740
diff
changeset
|
480 |
return make_not_entrant_or_zombie(not_entrant); |
8cca7fbe77b8
8056154: JVM crash with EXCEPTION_ACCESS_VIOLATION when there are many threads running
iveresov
parents:
25740
diff
changeset
|
481 |
} |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
482 |
bool make_not_used() { return make_not_entrant(); } |
20290
2127dc70bce9
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
19696
diff
changeset
|
483 |
bool make_zombie() { return make_not_entrant_or_zombie(zombie); } |
1 | 484 |
|
485 |
// used by jvmti to track if the unload event has been reported |
|
486 |
bool unload_reported() { return _unload_reported; } |
|
487 |
void set_unload_reported() { _unload_reported = true; } |
|
488 |
||
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
489 |
int get_state() const { |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
490 |
return _state; |
36300
5b47f168b948
7177745: JSR292: Many Callsite relinkages cause target method to always run in interpreter mode
vlivanov
parents:
36078
diff
changeset
|
491 |
} |
1 | 492 |
|
52385
5c679ec60888
8209189: Make CompiledMethod::do_unloading more concurrent
eosterlund
parents:
51473
diff
changeset
|
493 |
void make_unloaded(); |
1 | 494 |
|
495 |
bool has_dependencies() { return dependencies_size() != 0; } |
|
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
496 |
void print_dependencies() PRODUCT_RETURN; |
49890
29b94ed63a09
8202164: Remove some unneeded BoolObjectClosure* is_alive parameters
coleenp
parents:
49480
diff
changeset
|
497 |
void flush_dependencies(bool delete_immediately); |
5924
dc9d04930c82
6965184: possible races in make_not_entrant_or_zombie
never
parents:
5896
diff
changeset
|
498 |
bool has_flushed_dependencies() { return _has_flushed_dependencies; } |
dc9d04930c82
6965184: possible races in make_not_entrant_or_zombie
never
parents:
5896
diff
changeset
|
499 |
void set_has_flushed_dependencies() { |
1 | 500 |
assert(!has_flushed_dependencies(), "should only happen once"); |
5924
dc9d04930c82
6965184: possible races in make_not_entrant_or_zombie
never
parents:
5896
diff
changeset
|
501 |
_has_flushed_dependencies = 1; |
1 | 502 |
} |
503 |
||
504 |
int comp_level() const { return _comp_level; } |
|
505 |
||
58226 | 506 |
void unlink_from_method(); |
53282
cb7fff9105a8
8215754: ZGC: nmethod is not unlinked from Method before rendezvous handshake
eosterlund
parents:
52781
diff
changeset
|
507 |
|
5686
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
508 |
// Support for oops in scopes and relocs: |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
509 |
// Note: index 0 is reserved for null. |
52411
35ebea32a23c
8212996: Use AS_NO_KEEPALIVE when accessing dead java.lang.invoke.CallSites during nmethod unloading
eosterlund
parents:
52385
diff
changeset
|
510 |
oop oop_at(int index) const; |
55454
8892555795cd
8223794: applications/kitchensink/Kitchensink.java crash bad oop with Graal
kvn
parents:
55293
diff
changeset
|
511 |
oop oop_at_phantom(int index) const; // phantom reference |
5686
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
512 |
oop* oop_addr_at(int index) const { // for GC |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
513 |
// relocation indexes are biased by 1 (because 0 is reserved) |
35086
bbf32241d851
8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents:
34185
diff
changeset
|
514 |
assert(index > 0 && index <= oops_count(), "must be a valid non-zero index"); |
6268 | 515 |
assert(!_oops_are_stale, "oops are stale"); |
5686
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
516 |
return &oops_begin()[index - 1]; |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
517 |
} |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
518 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
519 |
// Support for meta data in scopes and relocs: |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
520 |
// Note: index 0 is reserved for null. |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
521 |
Metadata* metadata_at(int index) const { return index == 0 ? NULL: *metadata_addr_at(index); } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
522 |
Metadata** metadata_addr_at(int index) const { // for GC |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
523 |
// relocation indexes are biased by 1 (because 0 is reserved) |
35086
bbf32241d851
8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents:
34185
diff
changeset
|
524 |
assert(index > 0 && index <= metadata_count(), "must be a valid non-zero index"); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
525 |
return &metadata_begin()[index - 1]; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
526 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
527 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
528 |
void copy_values(GrowableArray<jobject>* oops); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
529 |
void copy_values(GrowableArray<Metadata*>* metadata); |
5686
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
530 |
|
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
531 |
// Relocation support |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
532 |
private: |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
533 |
void fix_oop_relocations(address begin, address end, bool initialize_immediates); |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
534 |
inline void initialize_immediate_oop(oop* dest, jobject handle); |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
535 |
|
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
536 |
public: |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
537 |
void fix_oop_relocations(address begin, address end) { fix_oop_relocations(begin, end, false); } |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
538 |
void fix_oop_relocations() { fix_oop_relocations(NULL, NULL, false); } |
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
539 |
|
1 | 540 |
// Sweeper support |
47099
49f5fa3fc2ae
8186837: Memory ordering nmethod, _state and _stack_traversal_mark
rehn
parents:
46702
diff
changeset
|
541 |
long stack_traversal_mark() { return _stack_traversal_mark; } |
49f5fa3fc2ae
8186837: Memory ordering nmethod, _state and _stack_traversal_mark
rehn
parents:
46702
diff
changeset
|
542 |
void set_stack_traversal_mark(long l) { _stack_traversal_mark = l; } |
1 | 543 |
|
544 |
// On-stack replacement support |
|
8872
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
8724
diff
changeset
|
545 |
int osr_entry_bci() const { assert(is_osr_method(), "wrong kind of nmethod"); return _entry_bci; } |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
8724
diff
changeset
|
546 |
address osr_entry() const { assert(is_osr_method(), "wrong kind of nmethod"); return _osr_entry_point; } |
1 | 547 |
void invalidate_osr_method(); |
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
2131
diff
changeset
|
548 |
nmethod* osr_link() const { return _osr_link; } |
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
2131
diff
changeset
|
549 |
void set_osr_link(nmethod *n) { _osr_link = n; } |
1 | 550 |
|
25492
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
551 |
// Verify calls to dead methods have been cleaned. |
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
552 |
void verify_clean_inline_caches(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
553 |
|
1 | 554 |
// unlink and deallocate this nmethod |
555 |
// Only NMethodSweeper class is expected to use this. NMethodSweeper is not |
|
556 |
// expected to use any other private methods/data in this class. |
|
557 |
||
558 |
protected: |
|
559 |
void flush(); |
|
560 |
||
561 |
public: |
|
8661
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
562 |
// When true is returned, it is unsafe to remove this nmethod even if |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
563 |
// it is a zombie, since the VM or the ServiceThread might still be |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
564 |
// using it. |
1 | 565 |
bool is_locked_by_vm() const { return _lock_count >0; } |
566 |
||
567 |
// See comment at definition of _last_seen_on_stack |
|
568 |
void mark_as_seen_on_stack(); |
|
32466
915d0c3d25aa
8134493: Cleaning inline caches of unloaded nmethods should be done in sweeper
thartmann
parents:
29576
diff
changeset
|
569 |
bool can_convert_to_zombie(); |
1 | 570 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
571 |
// Evolution support. We make old (discarded) compiled methods point to new Method*s. |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
572 |
void set_method(Method* method) { _method = method; } |
1 | 573 |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32466
diff
changeset
|
574 |
#if INCLUDE_JVMCI |
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
575 |
// Gets the JVMCI name of this nmethod. |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
576 |
const char* jvmci_name(); |
47794
e84aa2c71241
8188102: [JVMCI] Convert special JVMCI oops in nmethod to jweak values
dnsimon
parents:
47216
diff
changeset
|
577 |
|
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
578 |
// Records the pending failed speculation in the |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
579 |
// JVMCI speculation log associated with this nmethod. |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
580 |
void update_speculation(JavaThread* thread); |
35092
82170e5767c3
8143571: [JVMCI] Double unregistering of nmethod during unloading
never
parents:
35086
diff
changeset
|
581 |
|
54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
582 |
// Gets the data specific to a JVMCI compiled method. |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
583 |
// This returns a non-NULL value iff this nmethod was |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
584 |
// compiled by the JVMCI compiler. |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
585 |
JVMCINMethodData* jvmci_nmethod_data() const { |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
586 |
return jvmci_data_size() == 0 ? NULL : (JVMCINMethodData*) jvmci_data_begin(); |
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54355
diff
changeset
|
587 |
} |
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32466
diff
changeset
|
588 |
#endif |
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32466
diff
changeset
|
589 |
|
27247
99db666dbe8e
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
26912
diff
changeset
|
590 |
public: |
5686
5435e77aa3df
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
5533
diff
changeset
|
591 |
void oops_do(OopClosure* f) { oops_do(f, false); } |
55562
2f464d628942
8219687: G1 asserts nmethod should not be unloaded during parallel code cache unloading
eosterlund
parents:
55479
diff
changeset
|
592 |
void oops_do(OopClosure* f, bool allow_dead); |
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
2131
diff
changeset
|
593 |
|
58777
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
594 |
// All-in-one claiming of nmethods: returns true if the caller successfully claimed that |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
595 |
// nmethod. |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
596 |
bool oops_do_try_claim(); |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
597 |
|
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
598 |
// Class containing callbacks for the oops_do_process_weak/strong() methods |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
599 |
// below. |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
600 |
class OopsDoProcessor { |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
601 |
public: |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
602 |
// Process the oops of the given nmethod based on whether it has been called |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
603 |
// in a weak or strong processing context, i.e. apply either weak or strong |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
604 |
// work on it. |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
605 |
virtual void do_regular_processing(nmethod* nm) = 0; |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
606 |
// Assuming that the oops of the given nmethod has already been its weak |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
607 |
// processing applied, apply the remaining strong processing part. |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
608 |
virtual void do_remaining_strong_processing(nmethod* nm) = 0; |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
609 |
}; |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
610 |
|
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
611 |
// The following two methods do the work corresponding to weak/strong nmethod |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
612 |
// processing. |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
613 |
void oops_do_process_weak(OopsDoProcessor* p); |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
614 |
void oops_do_process_strong(OopsDoProcessor* p); |
18c246ad2ff9
8230706: Waiting on completion of strong nmethod processing causes long pause times with G1
tschatzl
parents:
58226
diff
changeset
|
615 |
|
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
2131
diff
changeset
|
616 |
static void oops_do_marking_prologue(); |
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
2131
diff
changeset
|
617 |
static void oops_do_marking_epilogue(); |
1 | 618 |
|
619 |
private: |
|
620 |
ScopeDesc* scope_desc_in(address begin, address end); |
|
621 |
||
49480
d7df2dd501ce
8199809: Don't include frame.inline.hpp and other.inline.hpp from .hpp files
coleenp
parents:
48088
diff
changeset
|
622 |
address* orig_pc_addr(const frame* fr); |
1 | 623 |
|
624 |
public: |
|
625 |
// copying of debugging information |
|
626 |
void copy_scopes_pcs(PcDesc* pcs, int count); |
|
627 |
void copy_scopes_data(address buffer, int size); |
|
628 |
||
629 |
// Accessor/mutator for the original pc of a frame before a frame was deopted. |
|
630 |
address get_original_pc(const frame* fr) { return *orig_pc_addr(fr); } |
|
631 |
void set_original_pc(const frame* fr, address pc) { *orig_pc_addr(fr) = pc; } |
|
632 |
||
633 |
// jvmti support: |
|
634 |
void post_compiled_method_load_event(); |
|
5896
c60924a89622
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
5702
diff
changeset
|
635 |
jmethodID get_and_cache_jmethod_id(); |
1 | 636 |
|
637 |
// verify operations |
|
638 |
void verify(); |
|
639 |
void verify_scopes(); |
|
640 |
void verify_interrupt_point(address interrupt_point); |
|
641 |
||
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
642 |
// Disassemble this nmethod with additional debug information, e.g. information about blocks. |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
643 |
void decode2(outputStream* st) const; |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
644 |
void print_constant_pool(outputStream* st); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
645 |
|
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
646 |
// Avoid hiding of parent's 'decode(outputStream*)' method. |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
647 |
void decode(outputStream* st) const { decode2(st); } // just delegate here. |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
648 |
|
1 | 649 |
// printing support |
347
df859fcca515
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
1
diff
changeset
|
650 |
void print() const; |
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
651 |
void print(outputStream* st) const; |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
652 |
void print_code(); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
653 |
|
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
654 |
#if defined(SUPPORT_DATA_STRUCTS) |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
655 |
// print output in opt build for disassembler library |
1 | 656 |
void print_relocations() PRODUCT_RETURN; |
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
657 |
void print_pcs() { print_pcs_on(tty); } |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
658 |
void print_pcs_on(outputStream* st); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
659 |
void print_scopes() { print_scopes_on(tty); } |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
660 |
void print_scopes_on(outputStream* st) PRODUCT_RETURN; |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
661 |
void print_value_on(outputStream* st) const; |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
662 |
void print_handler_table(); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
663 |
void print_nul_chk_table(); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
664 |
void print_recorded_oops(); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
665 |
void print_recorded_metadata(); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
666 |
|
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
667 |
void print_oops(outputStream* st); // oops from the underlying CodeBlob. |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
668 |
void print_metadata(outputStream* st); // metadata in metadata pool. |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
669 |
#else |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
670 |
// void print_pcs() PRODUCT_RETURN; |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
671 |
void print_pcs() { return; } |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
672 |
#endif |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
673 |
|
1 | 674 |
void print_calls(outputStream* st) PRODUCT_RETURN; |
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
675 |
static void print_statistics() PRODUCT_RETURN; |
36078
954c49c0ba57
8149969: [JVMCI] PrintNMethods is ignored for CompilerToVM.installCode when not called from the broker
never
parents:
35542
diff
changeset
|
676 |
|
954c49c0ba57
8149969: [JVMCI] PrintNMethods is ignored for CompilerToVM.installCode when not called from the broker
never
parents:
35542
diff
changeset
|
677 |
void maybe_print_nmethod(DirectiveSet* directive); |
347
df859fcca515
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
1
diff
changeset
|
678 |
void print_nmethod(bool print_code); |
1 | 679 |
|
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5924
diff
changeset
|
680 |
// need to re-define this from CodeBlob else the overload hides it |
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5924
diff
changeset
|
681 |
virtual void print_on(outputStream* st) const { CodeBlob::print_on(st); } |
8872
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
8724
diff
changeset
|
682 |
void print_on(outputStream* st, const char* msg) const; |
1 | 683 |
|
684 |
// Logging |
|
685 |
void log_identity(xmlStream* log) const; |
|
686 |
void log_new_nmethod() const; |
|
52385
5c679ec60888
8209189: Make CompiledMethod::do_unloading more concurrent
eosterlund
parents:
51473
diff
changeset
|
687 |
void log_state_change() const; |
1 | 688 |
|
4584
e2a449e8cc6f
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
4570
diff
changeset
|
689 |
// Prints block-level comments, including nmethod specific block labels: |
13887
89b873bcc55b
7200163: add CodeComments functionality to assember stubs
kvn
parents:
13883
diff
changeset
|
690 |
virtual void print_block_comment(outputStream* stream, address block_begin) const { |
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
691 |
#if defined(SUPPORT_ASSEMBLY) || defined(SUPPORT_ABSTRACT_ASSEMBLY) |
4584
e2a449e8cc6f
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
4570
diff
changeset
|
692 |
print_nmethod_labels(stream, block_begin); |
e2a449e8cc6f
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
4570
diff
changeset
|
693 |
CodeBlob::print_block_comment(stream, block_begin); |
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
694 |
#endif |
4584
e2a449e8cc6f
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
4570
diff
changeset
|
695 |
} |
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
696 |
bool has_block_comment(address block_begin) { |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
697 |
return CodeBlob::has_block_comment(block_begin); |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
698 |
} |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
699 |
void print_nmethod_labels(outputStream* stream, address block_begin, bool print_section_labels=true) const; |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
700 |
const char* nmethod_section_label(address pos) const; |
4584
e2a449e8cc6f
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
4570
diff
changeset
|
701 |
|
54960
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
702 |
// returns whether this nmethod has code comments. |
e46fe26d7f77
8213084: Rework and enhance Print[Opto]Assembly output
lucy
parents:
54669
diff
changeset
|
703 |
bool has_code_comment(address begin, address end); |
1 | 704 |
// Prints a comment for one native instruction (reloc info, pc desc) |
347
df859fcca515
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
1
diff
changeset
|
705 |
void print_code_comment_on(outputStream* st, int column, address begin, address end); |
1 | 706 |
|
707 |
// Compiler task identification. Note that all OSR methods |
|
708 |
// are numbered in an independent sequence if CICountOSR is true, |
|
709 |
// and native method wrappers are also numbered independently if |
|
710 |
// CICountNative is true. |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
711 |
virtual int compile_id() const { return _compile_id; } |
1 | 712 |
const char* compile_kind() const; |
713 |
||
714 |
// tells if any of this method's dependencies have been invalidated |
|
715 |
// (this is expensive!) |
|
22506
0759c126204d
7194669: CodeCache::mark_for_deoptimization should avoid verifying dependencies multiple times
anoll
parents:
22223
diff
changeset
|
716 |
static void check_all_dependencies(DepChange& changes); |
1 | 717 |
|
718 |
// tells if this compiled method is dependent on the given changes, |
|
719 |
// and the changes have invalidated it |
|
720 |
bool check_dependency_on(DepChange& changes); |
|
721 |
||
722 |
// Fast breakpoint support. Tells if this compiled method is |
|
723 |
// dependent on the given method. Returns true if this nmethod |
|
724 |
// corresponds to the given method as well. |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
725 |
virtual bool is_dependent_on_method(Method* dependee); |
1 | 726 |
|
727 |
// is it ok to patch at address? |
|
728 |
bool is_patchable_at(address instr_address); |
|
729 |
||
730 |
// UseBiasedLocking support |
|
7444 | 731 |
ByteSize native_receiver_sp_offset() { |
732 |
return _native_receiver_sp_offset; |
|
1 | 733 |
} |
7444 | 734 |
ByteSize native_basic_lock_sp_offset() { |
735 |
return _native_basic_lock_sp_offset; |
|
1 | 736 |
} |
737 |
||
738 |
// support for code generation |
|
739 |
static int verified_entry_point_offset() { return offset_of(nmethod, _verified_entry_point); } |
|
740 |
static int osr_entry_point_offset() { return offset_of(nmethod, _osr_entry_point); } |
|
26705
fca1785e7084
8048721: -XX:+PrintCompilation prints negative bci for non entrant OSR methods
thartmann
parents:
26580
diff
changeset
|
741 |
static int state_offset() { return offset_of(nmethod, _state); } |
1 | 742 |
|
54150
5529640c5f67
8220512: Deoptimize redefinition functions that have dirty ICs
coleenp
parents:
54122
diff
changeset
|
743 |
virtual void metadata_do(MetadataClosure* f); |
42650 | 744 |
|
745 |
NativeCallWrapper* call_wrapper_at(address call) const; |
|
746 |
NativeCallWrapper* call_wrapper_before(address return_pc) const; |
|
747 |
address call_instruction_address(address pc) const; |
|
748 |
||
749 |
virtual CompiledStaticCall* compiledStaticCall_at(Relocation* call_site) const; |
|
750 |
virtual CompiledStaticCall* compiledStaticCall_at(address addr) const; |
|
751 |
virtual CompiledStaticCall* compiledStaticCall_before(address addr) const; |
|
1 | 752 |
}; |
753 |
||
8661
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
754 |
// Locks an nmethod so its code will not get removed and it will not |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
755 |
// be made into a zombie, even if it is a not_entrant method. After the |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
756 |
// nmethod becomes a zombie, if CompiledMethodUnload event processing |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
757 |
// needs to be done, then lock_nmethod() is used directly to keep the |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
758 |
// generated code from being reused too early. |
1 | 759 |
class nmethodLocker : public StackObj { |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
760 |
CompiledMethod* _nm; |
1 | 761 |
|
8110
c992c8d52344
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
7444
diff
changeset
|
762 |
public: |
c992c8d52344
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
7444
diff
changeset
|
763 |
|
8661
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
764 |
// note: nm can be NULL |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
765 |
// Only JvmtiDeferredEvent::compiled_method_unload_event() |
3dc8a18ac563
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
8495
diff
changeset
|
766 |
// should pass zombie_ok == true. |
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
767 |
static void lock_nmethod(CompiledMethod* nm, bool zombie_ok = false); |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
768 |
static void unlock_nmethod(CompiledMethod* nm); // (ditto) |
1 | 769 |
|
770 |
nmethodLocker(address pc); // derive nm from pc |
|
771 |
nmethodLocker(nmethod *nm) { _nm = nm; lock_nmethod(_nm); } |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
772 |
nmethodLocker(CompiledMethod *nm) { |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
773 |
_nm = nm; |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
774 |
lock(_nm); |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
775 |
} |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
776 |
|
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
777 |
static void lock(CompiledMethod* method) { |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
778 |
if (method == NULL) return; |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
779 |
lock_nmethod(method); |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
780 |
} |
1 | 781 |
|
38133
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
782 |
static void unlock(CompiledMethod* method) { |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
783 |
if (method == NULL) return; |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
784 |
unlock_nmethod(method); |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
785 |
} |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
786 |
|
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
787 |
nmethodLocker() { _nm = NULL; } |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
788 |
~nmethodLocker() { |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents:
38043
diff
changeset
|
789 |
unlock(_nm); |
78b95467b9f1
8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
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} |
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|
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CompiledMethod* code() { return _nm; } |
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void set_code(CompiledMethod* new_nm) { |
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unlock(_nm); // note: This works even if _nm==new_nm. |
1 | 795 |
_nm = new_nm; |
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lock(_nm); |
1 | 797 |
} |
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}; |
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7397 | 799 |
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#endif // SHARE_CODE_NMETHOD_HPP |