0ee255f50a
Add the BTI instructions and the associated note to make the AArch64 asm objects compatible with BTI enforcement. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com> Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
20 lines
417 B
ArmAsm
20 lines
417 B
ArmAsm
//
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// Copyright (c) 2016, Linaro Limited
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// All rights reserved.
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// SPDX-License-Identifier: BSD-2-Clause-Patent
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//
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.text
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.align 5
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ASM_GLOBAL ASM_PFX(InternalMemCompareGuid)
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ASM_PFX(InternalMemCompareGuid):
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AARCH64_BTI(c)
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mov x2, xzr
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ldp x3, x4, [x0]
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cbz x1, 0f
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ldp x1, x2, [x1]
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0: cmp x1, x3
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ccmp x2, x4, #0, eq
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cset w0, eq
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ret
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