Messages in this thread | | | Subject | Re: Writable global section? | From | Andreas Schwab <> | Date | Wed, 09 Oct 2002 17:06:55 +0200 |
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"Richard B. Johnson" <root@chaos.analogic.com> writes:
|> If a variable is in the ".data" section, it is "seen" by all procedures |> that are linked to the shared library, but any attempt to write to this |> variable will seg-fault the task that attempts to modify it.
Your tests must be flawed, because a .data section *is* writable. The only difference between .data and .bss is that the latter has no allocation in the image file, but they are mapped to the same, writable segment.
Andreas.
-- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." - 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/
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