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| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-28 16:47:23 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-28 16:47:23 +0000 |
| commit | bb89ec1a7ec2f8d35033df9e47b3604925da3bd3 (patch) | |
| tree | 32d38e02ccab98dbac4c3014a12ac365775e8eb3 /EmulatorPkg/Unix/Host/X64/SwitchStack.S | |
| parent | d3e0289ccf641481f2cbdcbb0d5868c393b7edbb (diff) | |
| download | edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.tar.gz edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.tar.bz2 edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.zip | |
InOsEmuPkg: Rename package to EmulatorPkg & Sec to Host
* Rename InOsEmuPkg to EmulatorPkg
* Rename Unix/Sec to Unix/Host
Signed-off-by: jljusten
Reviewed-by: andrewfish
Reviewed-by: geekboy15a
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11918 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'EmulatorPkg/Unix/Host/X64/SwitchStack.S')
| -rw-r--r-- | EmulatorPkg/Unix/Host/X64/SwitchStack.S | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/EmulatorPkg/Unix/Host/X64/SwitchStack.S b/EmulatorPkg/Unix/Host/X64/SwitchStack.S new file mode 100644 index 0000000000..8a57b781b5 --- /dev/null +++ b/EmulatorPkg/Unix/Host/X64/SwitchStack.S @@ -0,0 +1,53 @@ +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+# Portitions copyright (c) 2011, Apple Inc. 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.
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# Routine Description:
+#
+# Routine for switching stacks with 2 parameters EFI ABI
+# Convert UNIX to EFI ABI
+#
+# Arguments:
+#
+# (rdi) EntryPoint - Entry point with new stack.
+# (rsi) Context1 - Parameter1 for entry point. (rcx)
+# (rdx) Context2 - Parameter2 for entry point. (rdx)
+# (rcx) NewStack - The pointer to new stack.
+#
+# Returns:
+#
+# None
+#
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(PeiSwitchStacks)
+ASM_PFX(PeiSwitchStacks):
+ pushq $0 // tells gdb to stop unwinding frame
+ movq %rsp, %rbp
+
+ movq %rcx, %rsp // update stack pointer
+
+ movq %rdi, %rax // entry point to %rax
+ movq %rsi, %rcx // Adjust Context1
+ // Context2 already in the rigth spot
+
+ #
+ # Reserve space for register parameters (rcx, rdx, r8 & r9) on the stack,
+ # in case the callee wishes to spill them.
+ #
+ subq $32, %rsp // 32-byte shadow space plus alignment pad
+ call *%rax
+
+
+
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