• Jan Beulich's avatar
    x86, asm: Fix CFI macro invocations to deal with shortcomings in gas · 3234282f
    Jan Beulich authored
    gas prior to (perhaps) 2.16.90 has problems with passing non-
    parenthesized expressions containing spaces to macros. Spaces, however,
    get inserted by cpp between any macro expanding to a number and a
    subsequent + or -. For the +, current x86 gas then removes the space
    again (future gas may not do so), but for the - the space gets retained
    and is then considered a separator between macro arguments.
    Fix the respective definitions for both the - and + cases, so that they
    neither contain spaces nor make cpp insert any (the latter by adding
    seemingly redundant parentheses).
    Signed-off-by: default avatarJan Beulich <jbeulich@novell.com>
    LKML-Reference: <4CBDBEBA020000780001E05A@vpn.id2.novell.com>
    Cc: Alexander van Heukelum <heukelum@fastmail.fm>
    Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
Kbuild 2.38 KB