On Tue, Feb 12, 2019 at 01:15:45AM +0000, Sasha Da Rocha Pinheiro wrote: > I found that when libdw will try to get the base CFI from the ABI, the > function ebl_abi_cfi() ends calling default_abi_cfi() which returns -1, when > should be calling x86_64_abi_cfi(). > In addition, the symbol x86_64_abi_cfi in the file libdw.so is not present, > but all the respective default_* ones are. > It seems that the library is being compiled using BACKEND as default and not > catching the correct architecture (?).
Maybe you are using an elfutils install in a non-default location? The backends are loaded dynamically and it looks like they aren't found. If you build and installed with e.g. --prefix=/opt/local/install/elfutils Try setting the environment variable LD_LIBRARY_PATH to: /opt/local/install/elfutils/lib:/opt/local/install/elfutils/lib/elfutils The first contains the elfutils libraries libelf.so, libdw.so, etc. The second contains the backends libebl_<arch>.so > I'm trying to read frame info from .eh_frame section. But I'm getting > "unknown error". That is certainly an unhelpful error message. Sorry. Cheers, Mark
