GNU: do not read the FDE count if omitted

If there is no binary search table computed, the FDECount encoding is
DW_EH_PE_omit.  Do not attempt to read the FDECount in such a situation
as we will read an incorrect value.  binutils only writes out the
FDECount if the encoding is not DW_EH_PE_omit.

git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@316224 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed