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authorVineet Gupta <vgupta@synopsys.com>2015-12-21 13:40:05 +0530
committerVineet Gupta <vgupta@synopsys.com>2015-12-21 14:01:25 +0530
commit6d0d506012c93d3393b8d3d0cac62e46e541c5b6 (patch)
tree2731ac132e4506d3cd63e80554ded66038ceba6e /arch/arc/kernel/unwind.c
parent2d64affc92d6281d2eca4faad326b981773bf040 (diff)
download96b-common-6d0d506012c93d3393b8d3d0cac62e46e541c5b6.tar.gz
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 <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel/unwind.c')
-rw-r--r--arch/arc/kernel/unwind.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 9f9ecc15556e..f34599abe182 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) {