some problem of virtual function.

[jacky]

hi all:
  i use gcc 2.95.2 for mips-elf platform and work under linux. when i
compile some virtual function, there are some problems happened. when
the programe call this virtual function, it can not jump the right
function. and jump the place where is not code segment. so the exception
happened. and the programe exit.
i do not know why this happened. is it can happened since the OS.
are there someone meet this problem. could you give me some advice?
thank you?