the executable was built with gcc 3.4.3
gcc -g -o main main.c

the dump -tv main has the following output :

***Symbol Table Information***
[Index] m Value Scn Aux Sclass Type Name
[Index] a0 Fname
[Index] a1 Tagndx Lnno Size Lnoptr Endndx
[Index] a2 Tagndx Fsiz Lnoptr Endndx
[Index] a3 Tagndx Lnno Size Dimensions
[Index] a4 CSlen PARMhsh SNhash SMtype SMclass Stab SNstab
[Index] a5 SECTlen #RELent #LINnums


m 0x200012fc .bss 1 unamex _main.bss_
a4 0x000003e8 0 0 CM BS 0 0

Can any one please explain the fields associated with a4 PARMhsh
SNhash SMtype SMclass Stab SNstab

what does unamex mean ? I looked at man pages .. it dosen'y have
information with respect to these fields.