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MdePkg/BaseMemoryLibOptDxe AARCH64: Make asm files BTI compatible

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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>
This commit is contained in:
Ard Biesheuvel
2023-03-25 17:37:30 +01:00
committed by mergify[bot]
parent c4c7fb2174
commit 0ee255f50a
5 changed files with 9 additions and 0 deletions
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MdePkg/Library/BaseMemoryLibOptDxe/AArch64/CompareGuid.S
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@@ -8,6 +8,7 @@
.align 5
ASM_GLOBAL ASM_PFX(InternalMemCompareGuid)
ASM_PFX(InternalMemCompareGuid):
AARCH64_BTI(c)
mov x2, xzr
ldp x3, x4, [x0]
cbz x1, 0f