File: malloc_context_size.cc

package info (click to toggle)
llvm-toolchain-3.8 1%3A3.8.1-24
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 379,280 kB
  • ctags: 388,501
  • sloc: cpp: 2,309,705; ansic: 477,070; objc: 100,918; asm: 97,974; python: 95,911; sh: 18,634; makefile: 7,294; perl: 5,584; ml: 5,460; pascal: 4,661; lisp: 2,548; xml: 686; cs: 350; php: 212; csh: 117
file content (27 lines) | stat: -rw-r--r-- 1,167 bytes parent folder | download | duplicates (11) 
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
 
// RUN: %clangxx_asan -O0 %s -o %t
// RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s
// RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s
// RUN: %env_asan_opts=malloc_context_size=1:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s
// RUN: %env_asan_opts=malloc_context_size=1:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s
// RUN: %env_asan_opts=malloc_context_size=2 not %run %t 2>&1 | FileCheck %s --check-prefix=TWO

int main() {
  char *x = new char[20];
  delete[] x;
  return x[0];

  // CHECK: freed by thread T{{.*}} here:
  // CHECK-NEXT: #0 0x{{.*}} in {{operator delete( )?\[\]|wrap__ZdaPv}}
  // CHECK-NOT: #1 0x{{.*}}

  // CHECK: previously allocated by thread T{{.*}} here:
  // CHECK-NEXT: #0 0x{{.*}} in {{operator new( )?\[\]|wrap__Znam}}
  // CHECK-NOT: #1 0x{{.*}}

  // CHECK: SUMMARY: AddressSanitizer: heap-use-after-free

  // TWO: previously allocated by thread T{{.*}} here:
  // TWO-NEXT: #0 0x{{.*}}
  // TWO-NEXT: #1 0x{{.*}} in main {{.*}}malloc_context_size.cc
  // TWO: SUMMARY: AddressSanitizer: heap-use-after-free
}