我如何mmap一个_particular_区域在内存？ [英] How do I mmap a _particular_ region in memory?

问题描述

我有一个程序。我希望它能够在不同的运行中mmap一个特定的内存区域。

1. 我有程序的源代码。 C / C ++


2. 我控制程序的编译方式。 gcc


3. 我控制程序如何链接。 gcc


4. 我控制程式如何执行（Linux）。

有这个特定的内存区域，例如0xabcdabcd到0xdeadbeef，我mmap到一个特定的文件。有没有保证这一点？

编辑：

解决方案

我如何确认没有其他任何内容？不能确保没有其他东西需要那个区域的记忆 - 先来，先服务。但是，因为你需要一个特定的内存，我猜你有一个非常专业的环境，所以你只需要确保你是第一个（使用开始脚本）

I have a program. I want it to be able to mmap a particular region of memory over different runs.

1. I have the source code of the program. C/C++
2. I control how the program is compiled. gcc
3. I control how the program is linked. gcc
4. I control how the program is run (Linux).

I just want to have this particular region of memory, say 0xabcdabcd to 0xdeadbeef that I mmap to a particular file. Is there anyway to guarantee this? (I have to somehow make sure that other things aren't loaded into this particular region).

EDIT:

How do I make sure that nothing else takes this particular region in memory?

解决方案

You cannot make sure that nothing else takes that area of memory - first come, first served. However, as you need a particular part of the memory, I'm guessing that you have a pretty specialized environment, so you simply need to make sure that you are first (using start scripts)

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