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    SubjectRe: Preventing gcc from aligning stack???
    > Yes it is. New gcc's (try to) keep the stack aligned at 16 bytes. The
    > kernel stack is 8Kb on ia32; the 16byte alignment is mostly for floating
    > point performance on Pentium and up, and floating point is forbidden in the

    I'd like to ask, why? Even double is only 8 bytes. Does this mean that 12
    bytes is wasted each argumentless call and -fno-omit-frame-pointer, for
    saving ebp?

    And as we got into gcc flags for compiling kernel (or anything) i'd like
    to mention that aligning code has no effect on plain Pentium. Should use
    -malign-loops/jumps=0 instead of 2 (is this still 2 for newest kernels?).

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      Last update: 2005-03-22 13:56    [W:0.018 / U:8.636 seconds]
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