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Kernel 2.6.24.6
I’m writing a syscall interposer. I’d like to interpose mmap, but need to copy and paste the code up to the actualy system call, methinks. I can’t find that code to paste? Where is this thing?
Thanks
Because the kernel can’t actually provide functions in your program, the calls into the application VDSO are enclosed in the libc implementation you’re using. Most likly, you’re using GNU libc, for which you can find the sources here.