File: asan_racy_double_free_test.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (32 lines) | stat: -rw-r--r-- 601 bytes parent folder | download | duplicates (40) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>

const int N = 1000;
void *x[N];

void *Thread1(void *unused) {
  for (int i = 0; i < N; i++) {
    fprintf(stderr, "%s %d\n", __func__, i);
    free(x[i]);
  }
  return NULL;
}

void *Thread2(void *unused) {
  for (int i = 0; i < N; i++) {
    fprintf(stderr, "%s %d\n", __func__, i);
    free(x[i]);
  }
  return NULL;
}

int main() {
  for (int i = 0; i < N; i++)
    x[i] = malloc(128);
  pthread_t t[2];
  pthread_create(&t[0], 0, Thread1, 0);
  pthread_create(&t[1], 0, Thread2, 0);
  pthread_join(t[0], 0);
  pthread_join(t[1], 0);
}