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Re: [PATCH v2] [BZ #10283] localedef: align fixed maps to SHMLBA


"Carlos O'Donell" <carlos@redhat.com> writes:

> http://pubs.opengroup.org/onlinepubs/9699919799/functions/mmap.html
> ~~~
> If MAP_FIXED is specified, the implementation may 
> require that addr is a multiple of the page size.
> ~~~
> Thus addr must be aligned to N*<page size>, where N is implementation
> specific.

That does not follow from here.  The important bits are here:

    The mmap() function may fail if:
    [EINVAL]
    The addr argument (if MAP_FIXED was specified) or off is not a
    multiple of the page size as returned by sysconf(), or is considered
                                                              ^^^^^^^^^^
    invalid by the implementation.
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
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