MdePkg/BaseLib: Remove LongJump.c and SetJump.c

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / SetJump.c

diff --git a/MdePkg/Library/BaseLib/Ia32/SetJump.c b/MdePkg/Library/BaseLib/Ia32/SetJump.c
deleted file mode 100644 (file)
index 4a28490..0000000
--- a/MdePkg/Library/BaseLib/Ia32/SetJump.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/** @file\r
-  Implementation of SetJump() on IA-32.\r
-\r
-  Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r
-  SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-\r
-#include "BaseLibInternals.h"\r
-\r
-/**\r
-  Worker function that checks ASSERT condition for JumpBuffer\r
-\r
-  Checks ASSERT condition for JumpBuffer.\r
-\r
-  If JumpBuffer is NULL, then ASSERT().\r
-  For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
-\r
-  @param  JumpBuffer    A pointer to CPU context buffer.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-InternalAssertJumpBuffer (\r
-  IN      BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer\r
-  );\r
-\r
-/**\r
-  Saves the current CPU context that can be restored with a call to LongJump()\r
-  and returns 0.\r
-\r
-  Saves the current CPU context in the buffer specified by JumpBuffer and\r
-  returns 0. The initial call to SetJump() must always return 0. Subsequent\r
-  calls to LongJump() cause a non-zero value to be returned by SetJump().\r
-\r
-  If JumpBuffer is NULL, then ASSERT().\r
-  For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
-\r
-  @param  JumpBuffer  A pointer to CPU context buffer.\r
-\r
-  @retval 0 Indicates a return from SetJump().\r
-\r
-**/\r
-_declspec (naked)\r
-RETURNS_TWICE\r
-UINTN\r
-EFIAPI\r
-SetJump (\r
-  OUT     BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer\r
-  )\r
-{\r
-  _asm {\r
-    push    [esp + 4]\r
-    call    InternalAssertJumpBuffer\r
-    pop     ecx\r
-    pop     ecx\r
-    mov     edx, [esp]\r
-\r
-    xor     eax, eax\r
-    mov     [edx + 24], eax        ; save 0 to SSP\r
-\r
-    mov     eax, [PcdGet32 (PcdControlFlowEnforcementPropertyMask)]\r
-    test    eax, eax\r
-    jz      CetDone\r
-    _emit      0x0F\r
-    _emit      0x20\r
-    _emit      0xE0                ; mov     eax, cr4\r
-    bt      eax, 23                ; check if CET is enabled\r
-    jnc     CetDone\r
-\r
-    mov     eax, 1\r
-    _emit      0xF3\r
-    _emit      0x0F\r
-    _emit      0xAE\r
-    _emit      0xE8                ; INCSSP EAX to read original SSP\r
-    _emit      0xF3\r
-    _emit      0x0F\r
-    _emit      0x1E\r
-    _emit      0xC8                ; READSSP EAX\r
-    mov     [edx + 0x24], eax      ; save SSP\r
-\r
-CetDone:\r
-\r
-    mov     [edx], ebx\r
-    mov     [edx + 4], esi\r
-    mov     [edx + 8], edi\r
-    mov     [edx + 12], ebp\r
-    mov     [edx + 16], esp\r
-    mov     [edx + 20], ecx\r
-    xor     eax, eax\r
-    jmp     ecx\r
-  }\r
-}\r
-\r