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Commit 77f3228f authored by Mark Salyzyn's avatar Mark Salyzyn Committed by Catalin Marinas
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arm64: AArch32 user space PC alignment exception 



ARMv7 does not have a PC alignment exception. ARMv8 AArch32
user space however can produce a PC alignment exception. Add
handler so that we do not dump an unexpected stack trace in
the logs.

Signed-off-by: default avatarMark Salyzyn <salyzyn@android.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 7db743c6

arch/arm64/kernel/entry.S

+2 −0
Original line number Diff line number Diff line
@@ -430,6 +430,8 @@ el0_sync_compat: 
	b.eq	el0_fpsimd_acc

	cmp	x24, #ESR_ELx_EC_FP_EXC32	// FP/ASIMD exception

	b.eq	el0_fpsimd_exc

	cmp	x24, #ESR_ELx_EC_PC_ALIGN	// pc alignment exception

	b.eq	el0_sp_pc

	cmp	x24, #ESR_ELx_EC_UNKNOWN	// unknown exception in EL0

	b.eq	el0_undef

	cmp	x24, #ESR_ELx_EC_CP15_32	// CP15 MRC/MCR trap