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Fix pointer tearing in JIT_MemSet helper on ARM64 #50273

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Merged
AntonLapounov merged 1 commit into from
Mar 26, 2021
Merged

Fix pointer tearing in JIT_MemSet helper on ARM64 #50273

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4 changes: 2 additions & 2 deletions src/coreclr/vm/arm64/crthelpers.S
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@
LEAF_ENTRY JIT_MemSet, _TEXT
cbz x2, LOCAL_LABEL(JIT_MemSet_ret)

strb w1, [x0]
ldrb wzr, [x0]

b C_PLTFUNC(memset)

Expand All @@ -23,7 +23,7 @@ LEAF_END_MARKED JIT_MemSet, _TEXT
LEAF_ENTRY JIT_MemCpy, _TEXT
cbz x2, LOCAL_LABEL(JIT_MemCpy_ret)

strb wzr, [x0]
ldrb wzr, [x0]
ldrb wzr, [x1]

b C_PLTFUNC(memcpy)
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