I plan to use mmap() to allocate a buffer close to a specific address.
What I’m worried about is, the buffer allocated using mmap() will overlap other buffers allocated by malloc() or new operator (C++). Is it possible?
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I plan to use mmap() to allocate a buffer close to a specific address.
What I’m worried about is, the buffer allocated using mmap() will overlap other buffers allocated by malloc() or new operator (C++). Is it possible?
No, that does not happen.
The heap maintained by the
mallocfunction lives in virtual mappings that have been established viabrkormmap, so memory areas could only be reused if the kernel gave out the same block viammaptwice.