From: "Madhavan T. Venkataraman" <madvenka@xxxxxxxxxxxxxxxxxxx> Add unwind hints to Interrupt and Exception handlers. Signed-off-by: Madhavan T. Venkataraman <madvenka@xxxxxxxxxxxxxxxxxxx> --- arch/arm64/kernel/entry.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index e28137d64b76..d73bed56f0e6 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -28,6 +28,7 @@ #include <asm/thread_info.h> #include <asm/asm-uaccess.h> #include <asm/unistd.h> +#include <asm/unwind_hints.h> .macro clear_gp_regs .irp n,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29 @@ -560,6 +561,7 @@ SYM_CODE_START_LOCAL(el\el\ht\()_\regsize\()_\label) .if \el == 0 b ret_to_user .else + UNWIND_HINT_REGS PT_REGS_SIZE b ret_to_kernel .endif SYM_CODE_END(el\el\ht\()_\regsize\()_\label) @@ -887,6 +889,7 @@ SYM_FUNC_START(call_on_irq_stack) /* Move to the new stack and call the function there */ mov sp, x16 blr x1 + UNWIND_HINT_IRQ 16 /* * Restore the SP from the FP, and restore the FP and LR from the frame -- 2.25.1
