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ArmPkg/CompilerIntrinsicsLib: Add uread, uwrite GCC assembly sources 

The new sources are a copy of the RVCT version.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Pete Batard 2019-05-13 09:54:16 +01:00 committed by Leif Lindholm
parent d039044be4
commit 96ef5a8e30
3 changed files with 109 additions and 0 deletions
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54
ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S Normal file
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@ -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

53
ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S Normal file
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@ -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

2
ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
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@ -71,6 +71,8 @@
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