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comparison compiler-rt/test/hwasan/TestCases/malloc_fill.cpp @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children
comparison
equal deleted inserted replaced
173:0572611fdcc8 207:2e18cbf3894f
1 // Check that we fill malloc-ed memory correctly. 1 // Check that we fill malloc-ed memory correctly.
2 // RUN: %clangxx_hwasan %s -o %t 2 // RUN: %clangxx_hwasan %s -o %t
3 // RUN: %run %t | FileCheck %s 3 // RUN: %run %t | FileCheck %s --check-prefix=CHECK-0
4 // RUN: %env_hwasan_opts=max_malloc_fill_size=20 %run %t | FileCheck %s --check-prefix=CHECK-20-be
5 // RUN: %env_hwasan_opts=max_malloc_fill_size=0:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-0
4 // RUN: %env_hwasan_opts=max_malloc_fill_size=10:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-10-8 6 // RUN: %env_hwasan_opts=max_malloc_fill_size=10:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-10-8
5 // RUN: %env_hwasan_opts=max_malloc_fill_size=20:malloc_fill_byte=171 %run %t | FileCheck %s --check-prefix=CHECK-20-ab 7 // RUN: %env_hwasan_opts=max_malloc_fill_size=20:malloc_fill_byte=171 %run %t | FileCheck %s --check-prefix=CHECK-20-ab
6 8
7 #include <stdio.h> 9 #include <stdio.h>
8 10
9 #include "utils.h"
10
11 int main(int argc, char **argv) { 11 int main(int argc, char **argv) {
12 // With asan allocator this makes sure we get memory from mmap. 12 // With asan allocator this makes sure we get memory from mmap.
13 static const int kSize = 1 << 25; 13 static const int kSize = 1 << 25;
14 unsigned char *x = new unsigned char[kSize]; 14 unsigned char *x = new unsigned char[kSize];
15 untag_printf("-"); 15 printf("-");
16 for (int i = 0; i <= 32; i++) { 16 for (int i = 0; i <= 32; i++) {
17 untag_printf("%02x", x[i]); 17 printf("%02x", x[i]);
18 } 18 }
19 untag_printf("-\n"); 19 printf("-\n");
20 delete [] x; 20 delete [] x;
21 } 21 }
22 22
23 // CHECK: -bebebebebebebebebebebebebebebebebebebebebebebebebebebebebebebebebe- 23 // CHECK-0: -000000000000000000000000000000000000000000000000000000000000000000-
24 // CHECK-20-be: -bebebebebebebebebebebebebebebebebebebebe00000000000000000000000000-
24 // CHECK-10-8: -080808080808080808080000000000000000000000000000000000000000000000- 25 // CHECK-10-8: -080808080808080808080000000000000000000000000000000000000000000000-
25 // CHECK-20-ab: -abababababababababababababababababababab00000000000000000000000000- 26 // CHECK-20-ab: -abababababababababababababababababababab00000000000000000000000000-