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8f74b95a21
As per the emailed RFC in https://edk2.groups.io/g/devel/topic/rfc_move/107675828, this patch moves CompilerIntrinsicsLib from ArmPkg to MdePkg as this library provides compiler intrinsics, which are industry standard. This aligns with the goal of integrating ArmPkg into existing packages: https://bugzilla.tianocore.org/show_bug.cgi?id=4121. The newly placed CompilerIntrinsicsLib is added to MdeLibs.dsc.inc as every DSC that builds ARM/AARCH64 needs this library added. The old location is removed from every DSC in edk2 in this commit also to not break bisectability with minimal hoop jumping. Continuous-integration-options: PatchCheck.ignore-multi-package Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
41 lines
887 B
ArmAsm
41 lines
887 B
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2011-2014, ARM Limited. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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#------------------------------------------------------------------------------
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#include <AsmMacroLib.h>
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# VOID
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# EFIAPI
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# memmove (
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# IN VOID *Destination,
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# IN CONST VOID *Source,
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# IN UINT32 Size
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# );
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ASM_FUNC(memmove)
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CMP r2, #0
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BXEQ lr
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CMP r0, r1
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BXEQ lr
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BHI memmove_backward
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memmove_forward:
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LDRB r3, [r1], #1
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STRB r3, [r0], #1
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SUBS r2, r2, #1
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BXEQ lr
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B memmove_forward
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memmove_backward:
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add r0, r2
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add r1, r2
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memmove_backward_loop:
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LDRB r3, [r1, #-1]!
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STRB r3, [r0, #-1]!
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SUBS r2, r2, #1
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BXEQ lr
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B memmove_backward_loop
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