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|
; Licensed to the .NET Foundation under one or more agreements.
; The .NET Foundation licenses this file to you under the MIT license.
; See the LICENSE file in the project root for more information.
; ==++==
;
;
; ==--==
include AsmMacros.inc
include AsmConstants.inc
extern GenericPInvokeCalliStubWorker:proc
extern VarargPInvokeStubWorker:proc
;
; in:
; PINVOKE_CALLI_TARGET_REGISTER (r10) = unmanaged target
; PINVOKE_CALLI_SIGTOKEN_REGNUM (r11) = sig token
;
; out:
; METHODDESC_REGISTER (r10) = unmanaged target
;
LEAF_ENTRY GenericPInvokeCalliHelper, _TEXT
;
; check for existing IL stub
;
mov rax, [PINVOKE_CALLI_SIGTOKEN_REGISTER + OFFSETOF__VASigCookie__pNDirectILStub]
test rax, rax
jz GenericPInvokeCalliGenILStub
;
; jump to existing IL stub
;
jmp rax
LEAF_END GenericPInvokeCalliHelper, _TEXT
NESTED_ENTRY GenericPInvokeCalliGenILStub, _TEXT
PROLOG_WITH_TRANSITION_BLOCK
;
; save target
;
mov r12, METHODDESC_REGISTER
mov r13, PINVOKE_CALLI_SIGTOKEN_REGISTER
;
; GenericPInvokeCalliStubWorker(TransitionBlock * pTransitionBlock, VASigCookie * pVASigCookie, PCODE pUnmanagedTarget)
;
lea rcx, [rsp + __PWTB_TransitionBlock] ; pTransitionBlock*
mov rdx, PINVOKE_CALLI_SIGTOKEN_REGISTER ; pVASigCookie
mov r8, METHODDESC_REGISTER ; pUnmanagedTarget
call GenericPInvokeCalliStubWorker
;
; restore target
;
mov METHODDESC_REGISTER, r12
mov PINVOKE_CALLI_SIGTOKEN_REGISTER, r13
EPILOG_WITH_TRANSITION_BLOCK_TAILCALL
jmp GenericPInvokeCalliHelper
NESTED_END GenericPInvokeCalliGenILStub, _TEXT
LEAF_ENTRY VarargPInvokeStub, _TEXT
mov PINVOKE_CALLI_SIGTOKEN_REGISTER, rcx
jmp VarargPInvokeStubHelper
LEAF_END VarargPInvokeStub, _TEXT
LEAF_ENTRY VarargPInvokeStub_RetBuffArg, _TEXT
mov PINVOKE_CALLI_SIGTOKEN_REGISTER, rdx
jmp VarargPInvokeStubHelper
LEAF_END VarargPInvokeStub_RetBuffArg, _TEXT
LEAF_ENTRY VarargPInvokeStubHelper, _TEXT
;
; check for existing IL stub
;
mov rax, [PINVOKE_CALLI_SIGTOKEN_REGISTER + OFFSETOF__VASigCookie__pNDirectILStub]
test rax, rax
jz VarargPInvokeGenILStub
;
; jump to existing IL stub
;
jmp rax
LEAF_END VarargPInvokeStubHelper, _TEXT
;
; IN: METHODDESC_REGISTER (R10) stub secret param
; PINVOKE_CALLI_SIGTOKEN_REGISTER (R11) VASigCookie*
;
; ASSUMES: we already checked for an existing stub to use
;
NESTED_ENTRY VarargPInvokeGenILStub, _TEXT
PROLOG_WITH_TRANSITION_BLOCK
;
; save target
;
mov r12, METHODDESC_REGISTER
mov r13, PINVOKE_CALLI_SIGTOKEN_REGISTER
;
; VarargPInvokeStubWorker(TransitionBlock * pTransitionBlock, VASigCookie *pVASigCookie, MethodDesc *pMD)
;
lea rcx, [rsp + __PWTB_TransitionBlock] ; pTransitionBlock*
mov rdx, PINVOKE_CALLI_SIGTOKEN_REGISTER ; pVASigCookie
mov r8, METHODDESC_REGISTER ; pMD
call VarargPInvokeStubWorker
;
; restore target
;
mov METHODDESC_REGISTER, r12
mov PINVOKE_CALLI_SIGTOKEN_REGISTER, r13
EPILOG_WITH_TRANSITION_BLOCK_TAILCALL
jmp VarargPInvokeStubHelper
NESTED_END VarargPInvokeGenILStub, _TEXT
end
|
