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On Hét, Május 7, 2007 12:08, pageexec@××××××××.hu wrote: |
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> On 3 May 2007 at 14:47, Miguel Sousa Filipe wrote: |
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> |
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>> In LISP, data and code are one and the same, so all hardened profiles |
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>> believe that any LISP environment is "violating" simple principles |
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>> such has"executing data". |
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>> |
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>> Having heap and stack without execution permissions invalidate the use |
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>> of LISP .. since it needs do execute data. |
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>> |
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>> I've don't recall being able to use lisp on setups where the process |
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>> heap is not executable. But I could be proven wrong... |
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> |
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> runtime code generation is very well possible under hardened setups, |
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> it's just that it must be enabled explicitly for the apps that need |
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> it, it's no longer granted by default. on gentoo/PaX setups you'd |
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> use paxctl -m which is normally done by the ebuild, see e.g., java. |
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> |
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> however there're programs which need this exemption during build |
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> already - that case requires more work to handle as we have to |
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> figure out where and how to patch the build system of the given |
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> package. there're also issues with text relocations, some of which |
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> require serious programming work to fix (see e.g., bug 134403). |
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I'm aware of these difficulties. That's why I've already abandoned this |
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idea. At least for some time. |
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|
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Regards, |
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Dw. |
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|
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-- |
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dr Tóth Attila, Radiológus Szakorvos jelölt, 06-20-825-8057, 06-30-5962-962 |
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Attila Toth MD, Radiologist in Training, +36-20-825-8057, +36-30-5962-962 |
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-- |
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