lkml.org 
[lkml]   [2005]   [May]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Illegal use of reserved word in system.h
    On Thu, 19 May 2005, Steven Rostedt wrote:

    > Well, they probably are the same, but then what's the reason for the
    > lines in binfmt_elf.c:
    >
    > #if ELF_EXEC_PAGESIZE > PAGE_SIZE
    > # define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE
    > #else
    > # define ELF_MIN_ALIGN PAGE_SIZE
    > #endif
    >
    >
    > This looks to me that ELF_EXEC_PAGESIZE and PAGE_SIZE may not be the
    > same. And what's passed to AT_PAGESZ is ELF_EXEC_PAGESIZE. In mips (as
    > your email address shows you are interested in) ELF_EXEC_PAGESIZE is
    > simply defined as PAGE_SIZE. But in intel i386, it is defined as 4096,

    And for MIPS PAGE_SIZE is also variable (currently one of: 4k, 16k, 64k).

    > which coincidentally is the same as PAGE_SIZE but there's no guarantee
    > that this will be the same, unless who ever changes PAGE_SIZE also
    > remembers to change ELF_EXEC_PAGESIZE.

    That's the maintainer's problem.

    > In arm26 the PAGE_SIZE is configurable (16k or 32k) but the
    > ELF_EXEC_PAGESIZE stays as 32k. So is this a bug?

    I guess so. Unless these smaller pages are always handled in pairs by
    Linux. That would be a legitimate case of ELF_EXEC_PAGESIZE != PAGE_SIZE.

    Maciej
    -
    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: 2005-05-20 14:28    [W:0.022 / U:0.840 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site