1 //===-- main.c --------------------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #include <stdio.h> 10 11 // This simple program is to demonstrate the capability of the lldb command 12 // "breakpoint command add" to add a set of commands to a breakpoint to be 13 // executed when the breakpoint is hit. 14 // 15 // In particular, we want to break within c(), but only if the immediate caller 16 // is a(). 17 18 int a(int); 19 int b(int); 20 int c(int); 21 22 int a(int val) 23 { 24 if (val <= 1) 25 return b(val); 26 else if (val >= 3) 27 return c(val); // Find the line number where c's parent frame is a here. 28 29 return val; 30 } 31 32 int b(int val) 33 { 34 return c(val); 35 } 36 37 int c(int val) 38 { 39 return val + 3; 40 } 41 42 int main (int argc, char const *argv[]) 43 { 44 int A1 = a(1); // a(1) -> b(1) -> c(1) 45 printf("a(1) returns %d\n", A1); 46 47 int B2 = b(2); // b(2) -> c(2) 48 printf("b(2) returns %d\n", B2); 49 50 int A3 = a(3); // a(3) -> c(3) 51 printf("a(3) returns %d\n", A3); 52 53 return 0; 54 } 55
