This is a gdb wrapper that supports callstack based breakpoint.
./insert_breakpoint.sh ... : it inserts breakpoint only if p1, p2, ... pn successively occurs in the target's stack frame (but other functions can be placed between the given parents)
./insert_direct_breakpoint.sh ... : it inserts breakpoint only if p1, p2, ... pn successively occurs in the target's stack frame
./gdb : gdb wrapper with the breakpoints
./reset_breakpoint.sh: flush all breakpoints
source env.sh: if you execute this command inside this directory, you can use all of above scripts without "./" prefix