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Remove assumption on EAX and R10 usage for IA32 compiler and X64 compiler.

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Signed-off-by: jyao1
Reviewed-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12760 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jyao1
2011-11-22 08:07:30 +00:00
parent db40504eae
commit 7102b19961
6 changed files with 453 additions and 121 deletions
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66
MdeModulePkg/Universal/EbcDxe/X64/EbcLowLevel.S
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@ -19,6 +19,8 @@
#---------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(CopyMem);
ASM_GLOBAL ASM_PFX(EbcInterpret);
ASM_GLOBAL ASM_PFX(ExecuteEbcImageEntryPoint);
#****************************************************************************
# EbcLLCALLEX
@ -66,21 +68,53 @@ ASM_PFX(EbcLLCALLEXNative):
pop %rbp
ret
ASM_GLOBAL ASM_PFX(EbcLLEbcInterpret);
ASM_PFX(EbcLLEbcInterpret):
# save old parameter to stack
mov %rcx, 0x8(%rsp)
mov %rdx, 0x10(%rsp)
mov %r8, 0x18(%rsp)
mov %r9, 0x20(%rsp)
# UINTN EbcLLGetEbcEntryPoint(VOID);
# Routine Description:
# The VM thunk code stuffs an EBC entry point into a processor
# register. Since we can't use inline assembly to get it from
# the interpreter C code, stuff it into the return value
# register and return.
#
# Arguments:
# None.
#
# Returns:
# The contents of the register in which the entry point is passed.
#
ASM_GLOBAL ASM_PFX(EbcLLGetEbcEntryPoint);
ASM_PFX(EbcLLGetEbcEntryPoint):
mov %r10, %rax
# Construct new stack
push %rbp
mov %rsp, %rbp
push %rsi
push %rdi
push %rbx
sub $0x80, %rsp
push %r10
mov %rbp, %rsi
add $0x10, %rsi
mov %rsp, %rdi
add $0x8, %rdi
mov $0x10, %rcx
rep movsq
# build new paramater calling convention
mov 0x18(%rsp), %r9
mov 0x10(%rsp), %r8
mov 0x8(%rsp), %rdx
mov %r10, %rcx
# call C-code
call ASM_PFX(EbcInterpret)
add $0x88, %esp
pop %rbx
pop %rdi
pop %rsi
pop %rbp
ret
ASM_GLOBAL ASM_PFX(EbcLLExecuteEbcImageEntryPoint);
ASM_PFX(EbcLLExecuteEbcImageEntryPoint):
# build new paramater calling convention
mov %rdx, %r8
mov %rcx, %rdx
mov %r10, %rcx
# call C-code
sub $0x28, %rsp
call ASM_PFX(ExecuteEbcImageEntryPoint)
add $0x28, %rsp
ret