• Russell King's avatar
    ARM: Eliminate decompressor -Dstatic= PIC hack · 5de813b6
    Russell King authored
    We used to build decompressors with -Dstatic= to avoid any local data
    being generated.  The problem is that local data generates GOTOFF
    relocations, which means we can't relocate the data relative to the
    text segment.
    
    Global data, on the other hand, goes through the GOT, and can be
    relocated anywhere.
    
    Unfortunately, with the new decompressors, this presents a problem
    since they declare static data within functions, and this leads to
    stack overflow.
    
    Fix this by separating out the decompressor code into a separate file,
    and removing 'static' from BSS data in misc.c.
    
    Also, discard the .data section - this means that should we end up
    with read/write initialized data, the decompressor will fail to link
    and the problem will be obvious.
    Acked-by: default avatarNicolas Pitre <nico@fluxnic.net>
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
    5de813b6
misc.c 3.88 KB