Mercurial > jdk8-mips64-public > hotspot / annotate
src/cpu/x86/vm/templateInterpreter_x86.cpp@bb1da64b0492 (annotated)
src/cpu/x86/vm/templateInterpreter_x86.cpp
Fri, 16 Aug 2019 16:50:17 +0200
- author
- eosterlund
- date
- Fri, 16 Aug 2019 16:50:17 +0200
- changeset 9834
- bb1da64b0492
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
8229345: Memory leak due to vtable stubs not being shared on SPARC
Reviewed-by: mdoerr, dholmes, kvn
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #include "precompiled.hpp" |
| aoqi@0 | 26 | #include "ci/ciMethod.hpp" |
| aoqi@0 | 27 | #include "interpreter/interpreter.hpp" |
| aoqi@0 | 28 | #include "runtime/frame.inline.hpp" |
| aoqi@0 | 29 | |
| aoqi@0 | 30 | #ifndef CC_INTERP |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | // asm based interpreter deoptimization helpers |
| aoqi@0 | 33 | int AbstractInterpreter::size_activation(int max_stack, |
| aoqi@0 | 34 | int temps, |
| aoqi@0 | 35 | int extra_args, |
| aoqi@0 | 36 | int monitors, |
| aoqi@0 | 37 | int callee_params, |
| aoqi@0 | 38 | int callee_locals, |
| aoqi@0 | 39 | bool is_top_frame) { |
| aoqi@0 | 40 | // Note: This calculation must exactly parallel the frame setup |
| aoqi@0 | 41 | // in AbstractInterpreterGenerator::generate_method_entry. |
| aoqi@0 | 42 | |
| aoqi@0 | 43 | // fixed size of an interpreter frame: |
| aoqi@0 | 44 | int overhead = frame::sender_sp_offset - |
| aoqi@0 | 45 | frame::interpreter_frame_initial_sp_offset; |
| aoqi@0 | 46 | // Our locals were accounted for by the caller (or last_frame_adjust |
| aoqi@0 | 47 | // on the transistion) Since the callee parameters already account |
| aoqi@0 | 48 | // for the callee's params we only need to account for the extra |
| aoqi@0 | 49 | // locals. |
| aoqi@0 | 50 | int size = overhead + |
| aoqi@0 | 51 | (callee_locals - callee_params)*Interpreter::stackElementWords + |
| aoqi@0 | 52 | monitors * frame::interpreter_frame_monitor_size() + |
| aoqi@0 | 53 | temps* Interpreter::stackElementWords + extra_args; |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | return size; |
| aoqi@0 | 56 | } |
| aoqi@0 | 57 | |
| aoqi@0 | 58 | void AbstractInterpreter::layout_activation(Method* method, |
| aoqi@0 | 59 | int tempcount, |
| aoqi@0 | 60 | int popframe_extra_args, |
| aoqi@0 | 61 | int moncount, |
| aoqi@0 | 62 | int caller_actual_parameters, |
| aoqi@0 | 63 | int callee_param_count, |
| aoqi@0 | 64 | int callee_locals, |
| aoqi@0 | 65 | frame* caller, |
| aoqi@0 | 66 | frame* interpreter_frame, |
| aoqi@0 | 67 | bool is_top_frame, |
| aoqi@0 | 68 | bool is_bottom_frame) { |
| aoqi@0 | 69 | // The frame interpreter_frame is guaranteed to be the right size, |
| aoqi@0 | 70 | // as determined by a previous call to the size_activation() method. |
| aoqi@0 | 71 | // It is also guaranteed to be walkable even though it is in a |
| aoqi@0 | 72 | // skeletal state |
| aoqi@0 | 73 | |
| aoqi@0 | 74 | int max_locals = method->max_locals() * Interpreter::stackElementWords; |
| aoqi@0 | 75 | int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
| aoqi@0 | 76 | Interpreter::stackElementWords; |
| aoqi@0 | 77 | |
| aoqi@0 | 78 | #ifdef ASSERT |
| aoqi@0 | 79 | if (!EnableInvokeDynamic) { |
| aoqi@0 | 80 | // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
| aoqi@0 | 81 | // Probably, since deoptimization doesn't work yet. |
| aoqi@0 | 82 | assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
| aoqi@0 | 83 | } |
| aoqi@0 | 84 | assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
| aoqi@0 | 85 | #endif |
| aoqi@0 | 86 | |
| aoqi@0 | 87 | interpreter_frame->interpreter_frame_set_method(method); |
| aoqi@0 | 88 | // NOTE the difference in using sender_sp and |
| aoqi@0 | 89 | // interpreter_frame_sender_sp interpreter_frame_sender_sp is |
| aoqi@0 | 90 | // the original sp of the caller (the unextended_sp) and |
| aoqi@0 | 91 | // sender_sp is fp+8/16 (32bit/64bit) XXX |
| aoqi@0 | 92 | intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; |
| aoqi@0 | 93 | |
| aoqi@0 | 94 | #ifdef ASSERT |
| aoqi@0 | 95 | if (caller->is_interpreted_frame()) { |
| aoqi@0 | 96 | assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
| aoqi@0 | 97 | } |
| aoqi@0 | 98 | #endif |
| aoqi@0 | 99 | |
| aoqi@0 | 100 | interpreter_frame->interpreter_frame_set_locals(locals); |
| aoqi@0 | 101 | BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); |
| aoqi@0 | 102 | BasicObjectLock* monbot = montop - moncount; |
| aoqi@0 | 103 | interpreter_frame->interpreter_frame_set_monitor_end(monbot); |
| aoqi@0 | 104 | |
| aoqi@0 | 105 | // Set last_sp |
| aoqi@0 | 106 | intptr_t* esp = (intptr_t*) monbot - |
| aoqi@0 | 107 | tempcount*Interpreter::stackElementWords - |
| aoqi@0 | 108 | popframe_extra_args; |
| aoqi@0 | 109 | interpreter_frame->interpreter_frame_set_last_sp(esp); |
| aoqi@0 | 110 | |
| aoqi@0 | 111 | // All frames but the initial (oldest) interpreter frame we fill in have |
| aoqi@0 | 112 | // a value for sender_sp that allows walking the stack but isn't |
| aoqi@0 | 113 | // truly correct. Correct the value here. |
| aoqi@0 | 114 | if (extra_locals != 0 && |
| aoqi@0 | 115 | interpreter_frame->sender_sp() == |
| aoqi@0 | 116 | interpreter_frame->interpreter_frame_sender_sp()) { |
| aoqi@0 | 117 | interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + |
| aoqi@0 | 118 | extra_locals); |
| aoqi@0 | 119 | } |
| aoqi@0 | 120 | *interpreter_frame->interpreter_frame_cache_addr() = |
| aoqi@0 | 121 | method->constants()->cache(); |
| aoqi@0 | 122 | } |
| aoqi@0 | 123 | |
| aoqi@0 | 124 | #endif // CC_INTERP |
