Debug information records associated with a weak function of the program are obtained. In response to receipt of an instruction of setting a breakpoint for the weak function in the program, breakpoint addresses corresponding one-to-one with each of the at least one debug information record are obtained. In response to the program being executed to a set breakpoint associated with the weak function, an address to which a program counter of the program points is obtained. A breakpoint address matching the address to which the program counter of the program points is obtained. A mark for the matching breakpoint address is set. In response to receipt of the instruction of setting a breakpoint for the weak function in the program again, a debug information record corresponding to the matching breakpoint address according to the at least one debug information record with the mark being set is obtained.