1 ; -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 ; ***** BEGIN LICENSE BLOCK *****
3 ; Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 ; The contents of this file are subject to the Mozilla Public License Version
6 ; 1.1 (the "License"); you may not use this file except in compliance with
7 ; the License. You may obtain a copy of the License at
8 ; http://www.mozilla.org/MPL/
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11 ; WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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15 ; The Original Code is mozilla.org code.
17 ; The Initial Developer of the Original Code is Mozilla Japan.
18 ; Portions created by the Initial Developer are Copyright (C) 2010
19 ; the Initial Developer. All Rights Reserved.
22 ; Makoto Kato <m_kato@ga2.so-net.ne.jp>
24 ; Alternatively, the contents of this file may be used under the terms of
25 ; either the GNU General Public License Version 2 or later (the "GPL"), or
26 ; the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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36 ; ***** END LICENSE BLOCK *****
39 extern js_InternalThrow:PROC
40 extern SetVMFrameRegs:PROC
41 extern PushActiveVMFrame:PROC
42 extern PopActiveVMFrame:PROC
46 ; JSBool JaegerTrampoline(JSContext *cx, JSStackFrame *fp, void *code,
47 ; Value *stackLimit, void *safePoint);
48 JaegerTrampoline PROC FRAME
70 mov r13, 0ffff800000000000h
71 mov r14, 7fffffffffffh
73 ; Build the JIT frame.
76 ; r9 = inlineCallCount
79 push r9 ; inlineCallCount
84 ; Space for the rest of the VMFrame.
87 ; This is actually part of the VMFrame.
91 ; Set cx->regs and set the active frame. Save r8 and align frame in one
97 call PushActiveVMFrame
100 ; Jump into the JIT code.
102 JaegerTrampoline ENDP
104 ; void JaegerTrampolineReturn();
105 JaegerTrampolineReturn PROC FRAME
108 mov qword ptr [rbx + 30h], rcx
111 call PopActiveVMFrame
124 JaegerTrampolineReturn ENDP
127 ; void JaegerThrowpoline()
128 JaegerThrowpoline PROC FRAME
130 ; For Windows x64 stub calls, we pad the stack by 32 before
131 ; calling, so we must account for that here. See doStubCall.
133 call js_InternalThrow
141 call PopActiveVMFrame
153 JaegerThrowpoline ENDP
157 ; void InjectJaegerReturn();
158 InjectJaegerReturn PROC FRAME
160 mov rcx, qword ptr [rbx+30h] ; load fp->rval_ into typeReg
161 mov rax, qword ptr [rbx+28h] ; fp->ncode_
163 ; Reimplementation of PunboxAssembler::loadValueAsComponents()
168 ; For Windows x64 stub calls, we pad the stack by 32 before
169 ; calling, so we must account for that here. See doStubCall.
170 mov rbx, qword ptr [rsp+38h+20h] ; f.fp
173 InjectJaegerReturn ENDP