operating system - How is segmentation more secure than paging? -

operating system - How is segmentation more secure than paging? -

this question occurred me while reading memory management in galvin? there 2 parts didn't understand. first 1 direct question galvin. reply didn't understand "since segmentation based on logical partition of memory rather physical one, segments of size can shared 1 entry in segment tables of each user. paging there must mutual entry in page tables each page shared" 1)why easier share reentrant code in segmentation? 2)is segmentation more secure paging?why

i've never read galvin book lot of questions here asking why absurd things true , cite source.

it not easier share reentrant code using segments rather paging.

in paging system, share code can mapped different processes adding section page table. it's straight forwards process.

segmentation not more security paging.

operating-system memory-segmentation computer-science-theory