File: ExplodeDFSanLabelsTest.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 (26 lines) | stat: -rw-r--r-- 794 bytes parent folder | download | duplicates (29) 
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
 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

// When tracing data flow, explode the number of DFSan labels.
#include <cstddef>
#include <cstdint>

static volatile int sink;

__attribute__((noinline))
void f(uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
  if (a == b + 1 && c == d + 2)
    sink++;
  if (a == d + 1 && c == b + 2)
    sink++;
}

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  for (size_t a = 0; a < Size; a++)
    for (size_t b = 0; b < Size; b++)
      for (size_t c = 0; c < Size; c++)
        for (size_t d = 0; d < Size; d++)
          f(Data[a], Data[b], Data[c], Data[d]);
  return 0;
}