• Jan Beulich's avatar
    [PATCH] x86-64: Speed up dwarf2 unwinder · 690a973f
    Jan Beulich authored
    This changes the dwarf2 unwinder to do a binary search for CIEs
    instead of a linear work. The linker is unfortunately not
    able to build a proper lookup table at link time, instead it creates
    one at runtime as soon as the bootmem allocator is usable (so you'll continue
    using the linear lookup for the first [hopefully] few calls).
    The code should be ready to utilize a build-time created table once
    a fixed linker becomes available.
    Signed-off-by: default avatarJan Beulich <jbeulich@novell.com>
    Signed-off-by: default avatarAndi Kleen <ak@suse.de>
    690a973f
Makefile 49 KB