From 6d0d506012c93d3393b8d3d0cac62e46e541c5b6 Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Mon, 21 Dec 2015 13:40:05 +0530 Subject: [PATCH] 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: Vineet Gupta --- arch/arc/kernel/unwind.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c index 9f9ecc1..f34599a 100644 --- a/arch/arc/kernel/unwind.c +++ b/arch/arc/kernel/unwind.c @@ -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) { -- 2.7.4