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150
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1 // RUN: %clang_hwasan -g %s -o %t && not %run %t 2>&1 | FileCheck %s
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2 // Only implemented for interceptor ABI on AArch64.
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3 // REQUIRES: aarch64-target-arch
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4
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5 #include <setjmp.h>
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6 #include <stdio.h>
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7
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8 /* Testing longjmp/setjmp should test that accesses to scopes jmp'd over are
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9 caught. */
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10 int __attribute__((noinline))
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11 uses_longjmp(int **other_array, int num, jmp_buf env) {
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12 int internal_array[100] = {0};
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13 *other_array = &internal_array[0];
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14 if (num % 2)
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15 longjmp(env, num);
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16 else
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17 return num % 8;
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18 }
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19
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20 int __attribute__((noinline)) uses_setjmp(int num) {
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21 int big_array[100];
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22 int *other_array = NULL;
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23 sigjmp_buf cur_env;
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24 int temp = 0;
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25 if ((temp = sigsetjmp(cur_env, 1)) != 0) {
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26 // We're testing that our longjmp interceptor untagged the previous stack.
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27 // Hence the tag in memory should be zero.
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28 if (other_array != NULL)
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29 return other_array[0];
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30 // CHECK: READ of size 4 at{{.*}}tags: {{..}}/00
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31 return 100;
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32 } else
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33 return uses_longjmp(&other_array, num, cur_env);
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34 }
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35
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36 int __attribute__((noinline)) main() {
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37 uses_setjmp(1);
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38 return 0;
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39 }
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