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111
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1 /* { dg-do run } */
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2 /* { dg-set-target-env-var ASAN_OPTIONS "detect_stack_use_after_return=1" } */
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3 /* { dg-shouldfail "asan" } */
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4
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5 #include <stdio.h>
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6 #include <pthread.h>
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7
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8 #ifndef kSize
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9 # define kSize 1
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10 #endif
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11
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12 #ifndef UseThread
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13 # define UseThread 0
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14 #endif
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15
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16 __attribute__((noinline))
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17 char *Ident(char *x) {
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18 fprintf(stderr, "1: %p\n", x);
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19 return x;
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20 }
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21
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22 __attribute__((noinline))
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23 char *Func1() {
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24 char local[kSize];
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25 return Ident(local);
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26 }
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27
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28 __attribute__((noinline))
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29 void Func2(char *x) {
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30 fprintf(stderr, "2: %p\n", x);
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31 *x = 1;
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32 }
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33
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34 void *Thread(void *unused) {
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35 Func2(Func1());
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36 return NULL;
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37 }
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38
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39 int main(int argc, char **argv) {
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40 #if UseThread
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41 pthread_t t;
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42 pthread_create(&t, 0, Thread, 0);
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43 pthread_join(t, 0);
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44 #else
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45 Func2(Func1());
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46 #endif
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47 return 0;
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48 }
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49
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50 /* { dg-output "WRITE of size 1 at .* thread T0.*" } */
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51 /* { dg-output " #0.*(Func2)?.*use-after-return-1.(c:31)?.*" } */
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52 /* { dg-output "is located in stack of thread T0 at offset.*" } */
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53 /* { dg-output "\'local\' <== Memory access at offset 32 is inside this variable" } */
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