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 #include <stdlib.h> 11 12 int a(int); 13 int b(int); 14 int c(int); 15 16 int a(int val) 17 { 18 if (val <= 1) 19 return b(val); 20 else if (val >= 3) 21 return c(val); 22 23 return val; 24 } 25 26 int b(int val) 27 { 28 int rc = c(val); 29 void *ptr = malloc(1024); // thread step-out of malloc into function b. 30 if (!ptr) 31 return -1; 32 else 33 printf("ptr=%p\n", ptr); 34 return rc; // we should reach here after 3 step-over's. 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); 45 printf("a(1) returns %d\n", A1); 46 47 int B2 = b(2); 48 printf("b(2) returns %d\n", B2); 49 50 int A3 = a(3); 51 printf("a(3) returns %d\n", A3); 52 53 return 0; 54 } 55
