[edk2-devel] [PATCH v2 4/4] ArmPkg/CompilerIntrinsicsLib: Add uread, uwrite GCC assembly sources
Pete Batard
pete at akeo.ie
Mon May 13 08:54:16 UTC 2019
The new sources are a copy of the RVCT version.
Cc: Ard Biesheuvel <ard.biesheuvel at linaro.org>
Cc: Leif Lindholm <leif.lindholm at linaro.org>
Signed-off-by: Pete Batard <pete at akeo.ie>
---
ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S | 54 ++++++++++++++++++++
ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S | 53 +++++++++++++++++++
ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf | 2 +
3 files changed, 109 insertions(+)
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S
new file mode 100644
index 000000000000..e8a1dbad8692
--- /dev/null
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S
@@ -0,0 +1,54 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroIoLib.h>
+
+#
+#UINT32
+#EFIAPI
+#__aeabi_uread4 (
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uread4)
+ ldrb r1, [r0]
+ ldrb r2, [r0, #1]
+ ldrb r3, [r0, #2]
+ ldrb r0, [r0, #3]
+ orr r1, r1, r2, lsl #8
+ orr r1, r1, r3, lsl #16
+ orr r0, r1, r0, lsl #24
+ bx lr
+
+#
+#UINT64
+#EFIAPI
+#__aeabi_uread8 (
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uread8)
+ mov r3, r0
+
+ ldrb r1, [r3]
+ ldrb r2, [r3, #1]
+ orr r1, r1, r2, lsl #8
+ ldrb r2, [r3, #2]
+ orr r1, r1, r2, lsl #16
+ ldrb r0, [r3, #3]
+ orr r0, r1, r0, lsl #24
+
+ ldrb r1, [r3, #4]
+ ldrb r2, [r3, #5]
+ orr r1, r1, r2, lsl #8
+ ldrb r2, [r3, #6]
+ orr r1, r1, r2, lsl #16
+ ldrb r2, [r3, #7]
+ orr r1, r1, r2, lsl #24
+
+ bx lr
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S
new file mode 100644
index 000000000000..9432ac431799
--- /dev/null
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S
@@ -0,0 +1,53 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroIoLib.h>
+
+#
+#UINT32
+#EFIAPI
+#__aeabi_uwrite4 (
+# IN UINT32 Data,
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uwrite4)
+ mov r2, r0, lsr #8
+ strb r0, [r1]
+ strb r2, [r1, #1]
+ mov r2, r0, lsr #16
+ strb r2, [r1, #2]
+ mov r2, r0, lsr #24
+ strb r2, [r1, #3]
+ bx lr
+
+#
+#UINT64
+#EFIAPI
+#__aeabi_uwrite8 (
+# IN UINT64 Data,
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uwrite8)
+ mov r3, r0, lsr #8
+ strb r0, [r2]
+ strb r3, [r2, #1]
+ mov r3, r0, lsr #16
+ strb r3, [r2, #2]
+ mov r3, r0, lsr #24
+ strb r3, [r2, #3]
+
+ mov r3, r1, lsr #8
+ strb r1, [r2, #4]
+ strb r3, [r2, #5]
+ mov r3, r1, lsr #16
+ strb r3, [r2, #6]
+ mov r3, r1, lsr #24
+ strb r3, [r2, #7]
+ bx lr
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf b/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
index aaf3de02a952..d5bad9467758 100644
--- a/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
@@ -71,6 +71,8 @@ [Sources.ARM]
Arm/lasr.S | GCC
Arm/llsr.S | GCC
Arm/llsl.S | GCC
+ Arm/uread.S | GCC
+ Arm/uwrite.S | GCC
Arm/div.asm | MSFT
Arm/uldiv.asm | MSFT
--
2.21.0.windows.1
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