diff options
Diffstat (limited to 'EdkModulePkg/Universal/Ebc/Dxe/x64/EbcLowLevel.S')
| -rw-r--r-- | EdkModulePkg/Universal/Ebc/Dxe/x64/EbcLowLevel.S | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/EdkModulePkg/Universal/Ebc/Dxe/x64/EbcLowLevel.S b/EdkModulePkg/Universal/Ebc/Dxe/x64/EbcLowLevel.S index 61322a3264..d9f638643a 100644 --- a/EdkModulePkg/Universal/Ebc/Dxe/x64/EbcLowLevel.S +++ b/EdkModulePkg/Universal/Ebc/Dxe/x64/EbcLowLevel.S @@ -44,6 +44,8 @@ # # Destroys no working registers. #**************************************************************************** +.global _CopyMem; + # VOID EbcLLCALLEXNative(UINTN FuncAddr, UINTN NewStackPointer, VOID *FramePtr) .global _EbcLLCALLEXNative; _EbcLLCALLEXNative: @@ -56,7 +58,12 @@ _EbcLLCALLEXNative: mov %rcx, %rbx # Set stack pointer to new value - mov %rdx, %rsp + sub %r8, %rdx + sub %rsp, %r8 + mov %rsp, %rcx + sub %rsp, 0x20 + call _CopyMem + add %rsp, 0x20 # Considering the worst case, load 4 potiential arguments # into registers. |