forked from OSchip/llvm-project
29 lines
780 B
C++
29 lines
780 B
C++
// RUN: %clangxx_tsan -O1 %s -o %T/global_race.cc.exe && %deflake %run %T/global_race.cc.exe | FileCheck %s
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#include <pthread.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <unistd.h>
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int GlobalData[10];
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void *Thread(void *a) {
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sleep(1);
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GlobalData[2] = 42;
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return 0;
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}
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int main() {
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// On FreeBSD, the %p conversion specifier works as 0x%x and thus does not
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// match to the format used in the diagnotic message.
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fprintf(stderr, "addr=0x%012lx\n", (unsigned long) GlobalData);
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pthread_t t;
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pthread_create(&t, 0, Thread, 0);
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GlobalData[2] = 43;
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pthread_join(t, 0);
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}
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// CHECK: addr=[[ADDR:0x[0-9,a-f]+]]
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK: Location is global 'GlobalData' of size 40 at [[ADDR]] (global_race.cc.exe+0x{{[0-9,a-f]+}})
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