Oliver Smith-Denny 8f74b95a21 MdePkg: Move CompilerIntrinsicsLib from ArmPkg
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>
2024-09-12 19:36:59 +00:00

31 lines
667 B
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2013, ARM. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
#include <AsmMacroLib.h>
#VOID
#EFIAPI
#__aeabi_llsr (
# IN VOID *Destination,
# IN VOID *Source,
# IN UINT32 Size
# );
#
ASM_FUNC(__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