• H. Peter Anvin's avatar
    x86: Regex support and known-movable symbols for relocs, fix _end · 873b5271
    H. Peter Anvin authored
    This adds a new category of symbols to the relocs program: symbols
    which are known to be relative, even though the linker emits them as
    absolute; this is the case for symbols that live in the linker script,
    which currently applies to _end.
    
    Unfortunately the previous workaround of putting _end in its own empty
    section was defeated by newer binutils, which remove empty sections
    completely.
    
    This patch also changes the symbol matching to use regular expressions
    instead of hardcoded C for specific patterns.
    
    This is a decidedly non-minimal patch: a modified version of the
    relocs program is used as part of the Syslinux build, and this 	is
    basically a backport to Linux of some of those changes; they have
    thus been well tested.
    Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
    LKML-Reference: <4AF86211.3070103@zytor.com>
    Acked-by: default avatarMichal Marek <mmarek@suse.cz>
    Tested-by: default avatarSedat Dilek <sedat.dilek@gmail.com>
    873b5271
relocs.c 16.3 KB