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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>
This commit is contained in:
Vineet Gupta 2015-12-21 13:40:05 +05:30
parent 2d64affc92
commit 6d0d506012
1 changed files with 1 additions and 6 deletions
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7
arch/arc/kernel/unwind.c
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@ -600,9 +600,6 @@ static signed fde_pointer_type(const u32 *cie)
const u8 *ptr = (const u8 *)(cie + 2); const u8 *ptr = (const u8 *)(cie + 2);
unsigned version = *ptr; unsigned version = *ptr;
if (version != 1)
return -1; /* unsupported */
if (*++ptr) { if (*++ptr) {
const char *aug; const char *aug;
const u8 *end = (const u8 *)(cie + 1) + *cie; 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); ptr = (const u8 *)(cie + 2);
end = (const u8 *)(cie + 1) + *cie; end = (const u8 *)(cie + 1) + *cie;
frame->call_frame = 1; frame->call_frame = 1;
if ((state.version = *ptr) != 1) if (*++ptr) {
cie = NULL; /* unsupported version */
else if (*++ptr) {
/* check if augmentation size is first (thus present) */ /* check if augmentation size is first (thus present) */
if (*ptr == 'z') { if (*ptr == 'z') {
while (++ptr < end && *ptr) { while (++ptr < end && *ptr) {