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I am using mmap for allocation memory and mark some pages as PROT_READ and few as PROT_NONE using mprotect. my implementation has logic based on the memory permission. Currently I have the memory location info, how do I get its current protection state? (PROT_READ/PROT_NONE)
I don’t know if there’s a syscall to retrieve this information.
Absolute worst case you could parse
/proc/<pid>/maps.