procps package.
Show memory address segments information:
sleep 100 & pmap "$!"
Sample output:
3376: sleep 100
0000000000400000 24K r-x-- sleep
0000000000606000 4K r---- sleep
0000000000607000 4K rw--- sleep
00000000019d5000 132K rw--- [ anon ]
00007f8b84abe000 7052K r---- locale-archive
00007f8b851a1000 1772K r-x-- libc-2.19.so
00007f8b8535c000 2044K ----- libc-2.19.so
00007f8b8555b000 16K r---- libc-2.19.so
00007f8b8555f000 8K rw--- libc-2.19.so
00007f8b85561000 20K rw--- [ anon ]
00007f8b85566000 140K r-x-- ld-2.19.so
00007f8b85759000 12K rw--- [ anon ]
00007f8b85786000 8K rw--- [ anon ]
00007f8b85788000 4K r---- ld-2.19.so
00007f8b85789000 4K rw--- ld-2.19.so
00007f8b8578a000 4K rw--- [ anon ]
00007ffc47c01000 136K rw--- [ stack ]
00007ffc47d3d000 8K r-x-- [ anon ]
ffffffffff600000 4K r-x-- [ anon ]
total 11396K
Show every information given by the kernel:
sleep 100 & pmap -XX "$!"