47 lines · c
1#include <stdio.h>2 3// This simple program is to demonstrate the capability of the lldb command4// "breakpoint command add" to add a set of commands to a breakpoint to be5// executed when the breakpoint is hit.6//7// In particular, we want to break within c(), but only if the immediate caller8// is a().9 10int a(int);11int b(int);12int c(int);13 14int a(int val)15{16 if (val <= 1)17 return b(val);18 else if (val >= 3)19 return c(val); // Find the line number where c's parent frame is a here.20 21 return val;22}23 24int b(int val)25{26 return c(val);27}28 29int c(int val)30{31 return val + 3;32}33 34int main (int argc, char const *argv[])35{36 int A1 = a(1); // a(1) -> b(1) -> c(1)37 printf("a(1) returns %d\n", A1);38 39 int B2 = b(2); // b(2) -> c(2)40 printf("b(2) returns %d\n", B2);41 42 int A3 = a(3); // a(3) -> c(3)43 printf("a(3) returns %d\n", A3);44 45 return 0;46}47