Clear Cause.BD after we use instruction_pointer_set to override
EPC.
This can prevent exception_epc check against instruction code at
new return address.
It won't be considered as "in delay slot" after epc being overridden
anyway.
Signed-off-by: Jiaxun Yang <[email protected]>
---
arch/mips/include/asm/ptrace.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index 701a233583c2..d14d0e37ad02 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -60,6 +60,7 @@ static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->cp0_epc = val;
+ regs->cp0_cause &= ~CAUSEF_BD;
}
/* Query offset/name of register from its name/offset */
--
2.43.0