62914bad46
TLS teardown is currently broken, as we unpoison the shadow a little bit and to the right of the TLS section, rather than the full TLS section itself. This currently breaks at -O0, and breaks with some upcoming globals code that I have. Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D120080
37 lines
812 B
C++
37 lines
812 B
C++
// Test that TLS is unpoisoned on thread death.
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// REQUIRES: x86-target-arch && !android
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// RUN: %clangxx_asan -O0 %s -pthread -o %t && %run %t 2>&1
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// RUN: %clangxx_asan -O1 %s -pthread -o %t && %run %t 2>&1
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#include <assert.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <sanitizer/asan_interface.h>
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__thread int64_t tls_var[2];
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volatile int64_t *p_tls_var;
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void *first(void *arg) {
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ASAN_POISON_MEMORY_REGION(&tls_var, sizeof(tls_var));
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p_tls_var = tls_var;
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return 0;
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}
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void *second(void *arg) {
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assert(tls_var == p_tls_var);
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*p_tls_var = 1;
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return 0;
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}
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int main(int argc, char *argv[]) {
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pthread_t p;
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assert(0 == pthread_create(&p, 0, first, 0));
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assert(0 == pthread_join(p, 0));
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assert(0 == pthread_create(&p, 0, second, 0));
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assert(0 == pthread_join(p, 0));
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return 0;
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}
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