File: origin_overlapped.c

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (23 lines) | stat: -rw-r--r-- 763 bytes parent folder | download | duplicates (22) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 %s -o %t && \
// RUN:     %run %t >%t.out 2>&1
// RUN: FileCheck %s < %t.out

#include <sanitizer/dfsan_interface.h>

int main(int argc, char *argv[]) {
  char volatile z1;
  char volatile z2;
  dfsan_set_label(8, (void *)&z1, sizeof(z1));
  dfsan_set_label(16, (void *)&z2, sizeof(z2)); // overwritting the old origin.
  char c = z1;
  dfsan_print_origin_trace(&c, "bar");
  return 0;
}

// CHECK: Taint value 0x8 {{.*}} origin tracking (bar)
// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
// CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-7]]

// CHECK: Origin value: {{.*}}, Taint value was created at

// CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-12]]