[Bug sanitizer/77631] no symbols in backtrace shown by ASan when debug info is split

[ian at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77631

--- Comment #16 from ian at gcc dot gnu.org <ian at gcc dot gnu.org> ---
Author: ian
Date: Fri Sep 22 13:38:10 2017
New Revision: 253095

URL: https://gcc.gnu.org/viewcvs?rev=253095&root=gcc&view=rev
Log:
        PR sanitizer/77631
        * configure.ac: Check for lstat and readlink.
        * elf.c (lstat, readlink): Provide dummy versions if real versions
        are not available.
        * configure, config.h.in: Rebuild.

Modified:
    trunk/libbacktrace/ChangeLog
    trunk/libbacktrace/config.h.in
    trunk/libbacktrace/configure
    trunk/libbacktrace/configure.ac
    trunk/libbacktrace/elf.c