[libunwind] dl_iterate_phdr() and libunwind

[Arun Sharma]

Hi David,

I just realized that libunwind doesn't work on statically linked 
binaries on x86-64. The reason is that dl_iterate_phdr() is not 
implemented for statically linked binaries.

But there are some comments in:

src/dwarf/Gfind_proc_info-lsb.c

  else
    /* Otherwise this is a static executable with no _DYNAMIC.  Assume
       that data-relative addresses are relative to 0, i.e.,
       absolute.  */

which seems to indicate it worked on some platform. Do you know which 
platforms had dl_iterate_phdr() working for statically linked binaries?

        -Arun