[P]

1. PAGE_ACCESSED
2. PAGE_ALIGN
3. PAGE_DIRTY
4. PAGE_PRESENT
5. PAGE_RW
6. PAGE_SIZE
7. PAGE_USER
8. PAGING_MEMORY
9. PAGING_PAGES
10. PARENB
11. PARENT_INO
12. PARENT_NAME
13. PARMRK
14. PARODD
15. PATH_MAX
16. PENDIN
17. PF_ALIGNWARN
18. PF_PTRACED
19. PF_VM86
20. PIPE_BUF
21. PIPE_EMPTY
22. PIPE_FULL
23. PIPE_HEAD
24. PIPE_READ_WAIT
25. PIPE_SIZE
26. PIPE_TAIL
27. PIPE_WRITE_WAIT
28. PLUS
29. PRECISION
30. PST
31. PTY_OTHER
32. PUTCH