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#REDIRECT [[Memory segmentation]] {{R from subtopic}} |
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{{Unreferenced|date=May 2009}} |
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In [[computing]], a '''code segment''', also known as a '''text segment''' or simply as '''text''', is one of the [[Memory segmentation|sections]] of a program in an [[object file]] or in [[computer memory|memory]], which contains [[executable]] [[Instruction (computer science)|instruction]]s. |
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It has a fixed size and is usually [[read-only]]. If the text section is not read-only, then the particular [[Computer architecture|architecture]] allows [[self-modifying code]]. Fixed-position or [[position independent code]] may be shared in memory by several processes in segmented or paged memory systems. |
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As a memory region, a '''code segment''' may be placed below the heap or stack in order to prevent [[Heap overflow|heap]] and [[stack overflow]]s from overwriting it. |
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==See also== |
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*[[data segment]] |
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*[[.bss]] |
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*[[Segmentation (memory)]] |
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==External links== |
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*[http://blog.ooz.ie/2008/09/0x03-notes-on-assembly-memory-from.html mem_sequence.c - A program that sequentially lists memory regions in itself] |
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[[Category:Executable file formats]] |
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[[Category:Memory management]] |
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{{compu-prog-stub}} |
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[[es:Segmento de código]] |
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[[pl:Segment kodu]] |
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[[zh:代码段]] |
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Revision as of 04:39, 17 October 2012
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