diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index dd81c671cb..7f13d837e8 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -217,6 +217,7 @@ Ia32/WriteMsr64.asm | INTEL Ia32/SwapBytes64.nasm| INTEL Ia32/SwapBytes64.asm | INTEL + Ia32/SetJump.nasm| INTEL Ia32/SetJump.asm | INTEL Ia32/RRotU64.asm | INTEL Ia32/RShiftU64.asm | INTEL @@ -302,6 +303,7 @@ Ia32/CpuIdEx.S | GCC Ia32/CpuId.S | GCC Ia32/LongJump.S | GCC + Ia32/SetJump.nasm| GCC Ia32/SetJump.S | GCC Ia32/SwapBytes64.nasm| GCC Ia32/SwapBytes64.S | GCC diff --git a/MdePkg/Library/BaseLib/Ia32/SetJump.nasm b/MdePkg/Library/BaseLib/Ia32/SetJump.nasm new file mode 100644 index 0000000000..6d3a5a25bb --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/SetJump.nasm @@ -0,0 +1,48 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, Intel Corporation. All rights reserved.
+; 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 +; http://opensource.org/licenses/bsd-license.php. +; +; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +; +; Module Name: +; +; SetJump.Asm +; +; Abstract: +; +; Implementation of SetJump() on IA-32. +; +;------------------------------------------------------------------------------ + + SECTION .text + +extern ASM_PFX(InternalAssertJumpBuffer) + +;------------------------------------------------------------------------------ +; UINTN +; EFIAPI +; SetJump ( +; OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(SetJump) +ASM_PFX(SetJump): + push DWORD [esp + 4] + call ASM_PFX(InternalAssertJumpBuffer) ; To validate JumpBuffer + pop ecx + pop ecx ; ecx <- return address + mov edx, [esp] + mov [edx], ebx + mov [edx + 4], esi + mov [edx + 8], edi + mov [edx + 12], ebp + mov [edx + 16], esp + mov [edx + 20], ecx ; eip value to restore in LongJump + xor eax, eax + jmp ecx +