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UefiCpuPkg: Update CpuExceptionHandlerLib pass XCODE5 tool chain 

https://bugzilla.tianocore.org/show_bug.cgi?id=849

In V2, use mov rax, strict qword 0 to replace the hard code db.

Use the dummy address as jmp destination, and add the logic to fix up
the address to the absolute address at boot time.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Liming Gao 2018-01-11 17:05:13 +08:00
parent 62382925c9
commit 2db0ccc2d7
1 changed files with 20 additions and 7 deletions
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27
UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.nasm
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@ -1,5 +1,5 @@
;------------------------------------------------------------------------------ ;
; Copyright (c) 2012 - 2014, Intel Corporation. All rights reserved.<BR>
; Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>
; This program and the accompanying materials
; are licensed and made available under the terms and conditions of the BSD License
; which accompanies this distribution. The full text of the license may be found at
@ -40,7 +40,7 @@ AsmIdtVectorBegin:
db 0x6a ; push #VectorNum
db ($ - AsmIdtVectorBegin) / ((AsmIdtVectorEnd - AsmIdtVectorBegin) / 32) ; VectorNum
push rax
mov rax, ASM_PFX(CommonInterruptEntry)
mov rax, strict qword 0 ; mov rax, ASM_PFX(CommonInterruptEntry)
jmp rax
%endrep
AsmIdtVectorEnd:
@ -50,7 +50,8 @@ HookAfterStubHeaderBegin:
@VectorNum:
db 0 ; 0 will be fixed
push rax
mov rax, HookAfterStubHeaderEnd
mov rax, strict qword 0 ; mov rax, HookAfterStubHeaderEnd
JmpAbsoluteAddress:
jmp rax
HookAfterStubHeaderEnd:
mov rax, rsp
@ -260,8 +261,7 @@ HasErrorCode:
; and make sure RSP is 16-byte aligned
;
sub rsp, 4 * 8 + 8
mov rax, ASM_PFX(CommonExceptionHandler)
call rax
call ASM_PFX(CommonExceptionHandler)
add rsp, 4 * 8 + 8
cli
@ -369,11 +369,24 @@ DoIret:
; comments here for definition of address map
global ASM_PFX(AsmGetTemplateAddressMap)
ASM_PFX(AsmGetTemplateAddressMap):
mov rax, AsmIdtVectorBegin
lea rax, [AsmIdtVectorBegin]
mov qword [rcx], rax
mov qword [rcx + 0x8], (AsmIdtVectorEnd - AsmIdtVectorBegin) / 32
mov rax, HookAfterStubHeaderBegin
lea rax, [HookAfterStubHeaderBegin]
mov qword [rcx + 0x10], rax
; Fix up CommonInterruptEntry address
lea rax, [ASM_PFX(CommonInterruptEntry)]
lea rcx, [AsmIdtVectorBegin]
%rep 32
mov qword [rcx + (JmpAbsoluteAddress - 8 - HookAfterStubHeaderBegin)], rax
add rcx, (AsmIdtVectorEnd - AsmIdtVectorBegin) / 32
%endrep
; Fix up HookAfterStubHeaderEnd
lea rax, [HookAfterStubHeaderEnd]
lea rcx, [JmpAbsoluteAddress]
mov qword [rcx - 8], rax
ret
;-------------------------------------------------------------------------------------