Messages in this thread Patch in this message | | | Date | Tue, 23 Dec 2014 23:15:10 +0800 | Subject | [PATCH] arm64: setup return path for el1_undef | From | Min-Hua Chen <> |
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Setup return path for el1_undef since el1_undef may be handled by handlers.
asmlinkage void __exception do_undefinstr(struct pt_regs *regs) { siginfo_t info; void __user *pc = (void __user *)instruction_pointer(regs);
/* check for AArch32 breakpoint instructions */ if (!aarch32_break_handler(regs)) return;
if (call_undef_hook(regs) == 0) return;
... }
Signed-off-by: Min-Hua Chen <orca.chen@gmail.com> --- arch/arm64/kernel/entry.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index fd4fa37..86ebec5 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -313,7 +313,8 @@ el1_undef: */ enable_dbg mov x0, sp - b do_undefinstr + bl do_undefinstr + kernel_exit 1 el1_dbg: /* * Debug exception handling -- 1.7.10.4
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