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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  *
     16  */
     17 
     18 #include <stdio.h>
     19 #include <stdlib.h>
     20 
     21 #define ARRAY_LENGTH 10
     22 
     23 int flag;
     24 
     25 void clobber(int *array, int size) {
     26     /* Make sure it clobbers something. */
     27     array[-1] = 0x123;
     28     array[size] = 0x123;
     29 }
     30 
     31 int main(void) {
     32     int values[ARRAY_LENGTH];
     33     int *p = (int *) malloc(sizeof(int));
     34     *p = 10;
     35 
     36     while (!flag) {
     37         sleep(1);
     38     }
     39 
     40     /* Set a breakpint here: "b main.c:41" */
     41     clobber(values, ARRAY_LENGTH);
     42     printf("*p = %d\n", *p);
     43     free(p);
     44 
     45     return 0;
     46 }
     47