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Commit 6d0d5060 authored by Vineet Gupta's avatar Vineet Gupta
Browse files

ARC: dw2 unwind: Don't bail for CIE.version != 1 



The rudimentary CIE.version == 3 handling is already present in code
(for return address register specification)

Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 2d64affc

arch/arc/kernel/unwind.c

+1 −6
Original line number Diff line number Diff line
@@ -600,9 +600,6 @@ static signed fde_pointer_type(const u32 *cie) 
	const u8 *ptr = (const u8 *)(cie + 2);

	unsigned version = *ptr;



	if (version != 1)

		return -1;	/* unsupported */



	if (*++ptr) {

		const char *aug;

		const u8 *end = (const u8 *)(cie + 1) + *cie;
@@ -1014,9 +1011,7 @@ int arc_unwind(struct unwind_frame_info *frame) 
		ptr = (const u8 *)(cie + 2);

		end = (const u8 *)(cie + 1) + *cie;

		frame->call_frame = 1;

		if ((state.version = *ptr) != 1)

			cie = NULL;	/* unsupported version */

		else if (*++ptr) {

		if (*++ptr) {

			/* check if augmentation size is first (thus present) */

			if (*ptr == 'z') {

				while (++ptr < end && *ptr) {