Where is the source code for mmap function? [closed]

apple.stackexchange https://apple.stackexchange.com/questions/315004

  •  19-04-2021
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Question

So I was searching for sys/mman.h and ideally sys/mman.c in https://opensource.apple.com/source/Libc/Libc-1244.20.1/ and didn't find it. Any idea why? Where could I find the source?

Was it helpful?

Solution

I assume you mean mmap.c - you can find the source files here:

https://github.com/apple/darwin-xnu/blob/5394bb038891708cd4ba748da79b90a33b19f82e/libsyscall/wrappers/unix03/mmap.c https://github.com/apple/darwin-xnu/blob/master/bsd/sys/mman.h

The kernel part of the implementation where the functionality actually lies can be found here:

https://github.com/apple/darwin-xnu/blob/5394bb038891708cd4ba748da79b90a33b19f82e/bsd/kern/kern_mman.c

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