/*

* Copyright (C) 2008, 2009, 2013 Apple Inc. All rights reserved.

* Copyright (C) 2008 Cameron Zwarich <cwzwarich@uwaterloo.ca>

* Copyright (C) Research In Motion Limited 2010, 2011. All rights reserved.

*

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

*

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of

* its contributors may be used to endorse or promote products derived

* from this software without specific prior written permission.

*

* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#ifndef JITStubsSH4_h

#define JITStubsSH4_h

#if !CPU(SH4)

#error "JITStubsSH4.h should only be #included if CPU(SH4)"

#endif

#if !USE(JSVALUE32_64)

#error "JITStubsSH4.h only implements USE(JSVALUE32_64)"

#endif

namespace JSC {

#define THUNK_RETURN_ADDRESS_OFFSET 56

#define SAVED_R8_OFFSET 60

#define SYMBOL_STRING(name) #name

/* code (r4), JSStack* (r5), CallFrame* (r6), void* unused1 (r7), void* unused2(sp), VM (sp)*/

asm volatile (

".text\n"

".globl " SYMBOL_STRING(ctiTrampoline) "\n"

HIDE_SYMBOL(ctiTrampoline) "\n"

SYMBOL_STRING(ctiTrampoline) ":" "\n"

"mov.l r7, @-r15" "\n"

"mov.l r6, @-r15" "\n"

"mov.l r5, @-r15" "\n"

"mov.l r14, @-r15" "\n"

"sts.l pr, @-r15" "\n"

"mov.l r13, @-r15" "\n"

"mov.l r11, @-r15" "\n"

"mov.l r10, @-r15" "\n"

"mov.l r9, @-r15" "\n"

"mov.l r8, @-r15" "\n"

"add #-" STRINGIZE_VALUE_OF(SAVED_R8_OFFSET) ", r15" "\n"

"mov r6, r14" "\n"

"jsr @r4" "\n"

"nop" "\n"

"add #" STRINGIZE_VALUE_OF(SAVED_R8_OFFSET) ", r15" "\n"

"mov.l @r15+,r8" "\n"

"mov.l @r15+,r9" "\n"

"mov.l @r15+,r10" "\n"

"mov.l @r15+,r11" "\n"

"mov.l @r15+,r13" "\n"

"lds.l @r15+,pr" "\n"

"mov.l @r15+,r14" "\n"

"add #12, r15" "\n"

"rts" "\n"

"nop" "\n"

);

asm volatile (

".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"

HIDE_SYMBOL(ctiOpThrowNotCaught) "\n"

SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"

"add #" STRINGIZE_VALUE_OF(SAVED_R8_OFFSET) ", r15" "\n"

"mov.l @r15+,r8" "\n"

"mov.l @r15+,r9" "\n"

"mov.l @r15+,r10" "\n"

"mov.l @r15+,r11" "\n"

"mov.l @r15+,r13" "\n"

"lds.l @r15+,pr" "\n"

"mov.l @r15+,r14" "\n"

"add #12, r15" "\n"

"rts" "\n"

"nop" "\n"

);

#define DEFINE_STUB_FUNCTION(rtype, op) \

extern "C" { \

rtype JITStubThunked_##op(STUB_ARGS_DECLARATION); \

}; \

asm volatile( \

".align 2" "\n" \

".globl " SYMBOL_STRING(cti_##op) "\n" \

SYMBOL_STRING(cti_##op) ":" "\n" \

"sts pr, r11" "\n" \

"mov.l r11, @(" STRINGIZE_VALUE_OF(THUNK_RETURN_ADDRESS_OFFSET) ", r15)" "\n" \

"mov.l .L2" SYMBOL_STRING(JITStubThunked_##op) ",r0" "\n" \

"mov.l @(r0,r12),r11" "\n" \

"jsr @r11" "\n" \

"nop" "\n" \

"mov.l @(" STRINGIZE_VALUE_OF(THUNK_RETURN_ADDRESS_OFFSET) ", r15), r11 " "\n" \

"lds r11, pr " "\n" \

"rts" "\n" \

"nop" "\n" \

".align 2" "\n" \

".L2" SYMBOL_STRING(JITStubThunked_##op) ":.long " SYMBOL_STRING(JITStubThunked_##op) "@GOT \n" \

); \

rtype JITStubThunked_##op(STUB_ARGS_DECLARATION)

} // namespace JSC

#endif // JITStubsSH4_h