From 64698eb8415e6829b956a12c3883655acc02f5a7 Mon Sep 17 00:00:00 2001
From: mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 18 Aug 2009 21:04:14 +0000
Subject: Add ARM support Add C inline assembly files for IA32 and X64 GCC
 builds.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9113 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S | 70 ++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S

(limited to 'MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S')

diff --git a/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S b/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S
new file mode 100644
index 0000000000..d79ad2e84b
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S
@@ -0,0 +1,70 @@
+#------------------------------------------------------------------------------ 
+#
+# Copyright (c) 2006 - 2009, Intel Corporation<BR>
+# Portions copyright (c) 2008-2009 Apple Inc.<BR>
+# 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.
+#
+#------------------------------------------------------------------------------
+.text
+.p2align 2
+
+.globl ASM_PFX(SetJump)
+.globl ASM_PFX(InternalLongJump)
+
+#/**
+#  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
+#  );
+#
+ASM_PFX(SetJump):
+  mov   r3, r13
+  stmia r0, {r3-r12,r14}
+  eor   r0, 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
+#  );
+#
+ASM_PFX(InternalLongJump):
+  ldmia  r0, {r3-r12,r14}
+  mov    r13, r3
+  mov    r0, r1
+  bx     lr
+
+ASM_FUNCTION_REMOVE_IF_UNREFERENCED()
-- 
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