1 files changed, 64 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.asm b/roms/edk2/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.asm
new file mode 100644
index 000000000..936f722be
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.asm
@@ -0,0 +1,64 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+;------------------------------------------------------------------------------
+
+  EXPORT  SetJump
+  EXPORT  InternalLongJump
+
+  AREA  BaseLib, CODE, READONLY
+
+;/**
+;  Saves the current CPU context that can be restored with a call to LongJump() and returns 0.;
+;
+;  Saves the current CPU context in the buffer specified by JumpBuffer and returns 0.  The initial
+;  call to SetJump() must always return 0.  Subsequent calls to LongJump() cause a non-zero
+;  value to be returned by SetJump().
+;
+;  If JumpBuffer is NULL, then ASSERT().
+;  For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().
+;
+;  @param  JumpBuffer    A pointer to CPU context buffer.
+;
+;**/
+;
+;UINTN
+;EFIAPI
+;SetJump (
+;  IN      BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer  // R0
+;  )
+;
+SetJump
+  MOV  R3, R13
+  STM  R0, {R3-R12,R14}
+  EOR  R0, R0
+  BX   LR
+
+;/**
+;  Restores the CPU context that was saved with SetJump().;
+;
+;  Restores the CPU context from the buffer specified by JumpBuffer.
+;  This function never returns to the caller.
+;  Instead is resumes execution based on the state of JumpBuffer.
+;
+;  @param  JumpBuffer    A pointer to CPU context buffer.
+;  @param  Value         The value to return when the SetJump() context is restored.
+;
+;**/
+;VOID
+;EFIAPI
+;InternalLongJump (
+;  IN      BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer,  // R0
+;  IN      UINTN                     Value         // R1
+;  );
+;
+InternalLongJump
+  LDM   R0, {R3-R12,R14}
+  MOV   R13, R3
+  MOV   R0, R1
+  BX    LR
+
+  END