DKWechatHelper/dkhelper/dkhelperDylib/Trace/a1a2-selectortramps-arm64.s
DKJone b2ddc1ad24 init project
添加初始项目
2019-01-23 11:38:18 +08:00

157 lines
3.0 KiB
ArmAsm

/*
* a1a2-selectortramps-arm64.s
* OCMethodTrace
*
* https://github.com/omxcodec/OCMethodTrace.git
*
* Copyright (C) 2018 Michael Chen <omxcodec@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if __arm64__
#include <mach/vm_param.h>
.text
.private_extern __a1a2_selectorTrampHead
.private_extern __a1a2_firstSelectorTramp
.private_extern __a1a2_selectorTrampEnd
msgSend:
.quad 0
.align PAGE_MAX_SHIFT
__a1a2_selectorTrampHead:
L_a1a2_selectorTrampHead:
// 1. selector
ldr x1, [x17] // selector -> _cmd
// 2. msgSend
adr x17, L_a1a2_selectorTrampHead
sub x17, x17, #PAGE_MAX_SIZE
ldr x16, [x17]
br x16 // tail call msgSend
// pad up to TrampolineSelectorPagePair header size
nop
nop
nop
.macro TrampolineEntry
// load address of trampoline data (one page before this instruction)
adr x17, -PAGE_MAX_SIZE
b L_a1a2_selectorTrampHead
.endmacro
.macro TrampolineEntryX16
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
.endmacro
.macro TrampolineEntryX256
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
.endmacro
.align 3
.private_extern __a1a2_firstSelectorTramp
__a1a2_firstSelectorTramp:
// 2048-4 trampolines to fill 16K page
TrampolineEntryX256
TrampolineEntryX256
TrampolineEntryX256
TrampolineEntryX256
TrampolineEntryX256
TrampolineEntryX256
TrampolineEntryX256
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntryX16
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
TrampolineEntry
// TrampolineEntry
// TrampolineEntry
// TrampolineEntry
// TrampolineEntry
.private_extern __a1a2_selectorTrampEnd
__a1a2_selectorTrampEnd:
#endif