File: use-after-delete.cc

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (30 lines) | stat: -rw-r--r-- 1,423 bytes parent folder | download | duplicates (6) 
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
 
// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
// REQUIRES: stable-runtime

#include <stdlib.h>
int main() {
  char * volatile x = new char[10];
  delete[] x;
  return x[5];
  // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
  // CHECK:   {{0x.* at pc 0x.* bp 0x.* sp 0x.*}}
  // CHECK: {{READ of size 1 at 0x.* thread T0}}
  // CHECK: {{    #0 0x.* in main .*use-after-delete.cc:}}[[@LINE-4]]
  // CHECK: {{0x.* is located 5 bytes inside of 10-byte region .0x.*,0x.*}}
  // CHECK: {{freed by thread T0 here:}}

  // CHECK-Linux: {{    #0 0x.* in operator delete\[\]}}
  // CHECK-Linux: {{    #1 0x.* in main .*use-after-delete.cc:}}[[@LINE-10]]

  // CHECK: {{previously allocated by thread T0 here:}}

  // CHECK-Linux: {{    #0 0x.* in operator new\[\]}}
  // CHECK-Linux: {{    #1 0x.* in main .*use-after-delete.cc:}}[[@LINE-16]]

  // CHECK: Shadow byte legend (one shadow byte represents {{[0-9]+}} application bytes):
  // CHECK: Global redzone:
  // CHECK: ASan internal:
}