From: jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 6 Dec 2010 06:06:35 +0000 (+0000)
Subject: MdePkg: Fix GCC Thunk support for IA32
X-Git-Tag: edk2-stable201903~15353
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=dccf78f0a29c44485f2bd5eef4398b6be93ee81b

MdePkg: Fix GCC Thunk support for IA32

In r11047 Ia32/Thunk.S was modified.  However, the current
implemention of Ia32/Thunk.S has contant values in the code
which must be updated if the code is changed.

This change updates those constants for the r11047 change.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11121 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/MdePkg/Library/BaseLib/Ia32/Thunk16.S b/MdePkg/Library/BaseLib/Ia32/Thunk16.S
index 44aea1a5ef..df205e9a19 100644
--- a/MdePkg/Library/BaseLib/Ia32/Thunk16.S
+++ b/MdePkg/Library/BaseLib/Ia32/Thunk16.S
@@ -160,14 +160,14 @@ ASM_PFX(InternalAsmThunk16):
     movsl                               # copy RegSet
     movl    40(%esp), %eax              # eax <- address of transition code
     movl    %edx, %esi                  # esi <- 16-bit stack segment
-    lea     0x5e(%eax), %edx
+    lea     0x5f(%eax), %edx
     movl    %eax, %ecx
     andl    $0xf, %ecx
     shll    $12, %eax
     lea     0x6(%ecx), %ecx
     movw    %cx, %ax
     stosl                               # [edi] <- return address of user code
-    sgdtl   0xffffffa2(%edx)
+    sgdtl   0xffffffa1(%edx)
     sidtl   0x24(%esp)
     movl    %cr0, %eax
     movl    %eax, (%edx)                # save CR0 in SavedCr0