lkml.org 
[lkml]   [2005]   [Nov]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 0/9] x86-64 put current in r10
    > Your patch breaks all out-of-tree amd64 assembler code used in kernel. r10
    > register is one of those registers that does not need to be preserved across
    > function calls, and reserving that register for other purpose means that all
    > assembler code using r10 in kernel must be rewritten. This is deeply
    > unfunny.

    Well, the changes should be minor.

    >
    > Please don't apply Ben's patch. It is already bad enough having to deal with
    > two incompatible calling conventions on 32 bit x86.

    43KB .text savings are hard to argue against. There is no guarantee
    for a stable kernel ABI. If you maintain out of tree code you
    will need to live with the occasional changes.

    -Andi
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-11-30 13:49    [W:0.031 / U:1.020 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site