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authorSteve McIntyre <steve@einval.com>2021-03-23 23:49:46 +0000
committerSteve McIntyre <steve@einval.com>2021-03-23 23:49:46 +0000
commit1251a7ba86fc40a6aad8b4fecdbca2b61808d9fa (patch)
tree2125fda549aaca55cb49a48d54be77dec7fbf3df /gnu-efi/lib/arm/llsr.S
parent85b409232ce89b34626df9d72abedf5d4f5ccef6 (diff)
parent031e5cce385d3f96b1caa1d53495332a7eb03749 (diff)
downloadefi-boot-shim-debian/15.3-1.tar.gz
efi-boot-shim-debian/15.3-1.zip
Update upstream source from tag 'upstream/15.3'debian/15.3-1
Update to upstream version '15.3' with Debian dir 1b484f1c1ac270604a5a1451b34de4b0865c6211
Diffstat (limited to 'gnu-efi/lib/arm/llsr.S')
-rw-r--r--gnu-efi/lib/arm/llsr.S41
1 files changed, 41 insertions, 0 deletions
diff --git a/gnu-efi/lib/arm/llsr.S b/gnu-efi/lib/arm/llsr.S
new file mode 100644
index 00000000..432b27d7
--- /dev/null
+++ b/gnu-efi/lib/arm/llsr.S
@@ -0,0 +1,41 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2013, ARM. All rights reserved.<BR>
+#
+# 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.
+#
+#------------------------------------------------------------------------------
+
+#include "edk2asm.h"
+
+.text
+.align 2
+GCC_ASM_EXPORT(__aeabi_llsr)
+
+#
+#VOID
+#EFIAPI
+#__aeabi_llsr (
+# IN VOID *Destination,
+# IN VOID *Source,
+# IN UINT32 Size
+# );
+#
+ASM_PFX(__aeabi_llsr):
+ subs r3,r2,#0x20
+ bpl 1f
+ rsb r3,r2,#0x20
+ lsr r0,r0,r2
+ orr r0,r0,r1,lsl r3
+ lsr r1,r1,r2
+ bx lr
+1:
+ lsr r0,r1,r3
+ mov r1,#0
+ bx lr