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562c6b8019
Summary: This substitution expands to the appropriate minimum deployment target flag where thread local storage (TLS) was first introduced on Darwin platforms. For all other platforms the substitution expands to an empty string. E.g. for macOS the substitution expands to `-mmacosx-version-min=10.12` This patch adds support for the substitution (and future substitutions) by doing a minor refactor and then uses the substitution in the relevant TSan tests. rdar://problem/59568956 Reviewers: yln, kubamracek, dvyukov, vitalybuka Subscribers: #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D74802
37 lines
883 B
C++
37 lines
883 B
C++
// RUN: %clangxx_tsan %darwin_min_target_with_tls_support -O1 %s -o %t && \
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// RUN: %deflake %run %t | \
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// RUN: FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
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#include "test.h"
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void *Thread2(void *a) {
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barrier_wait(&barrier);
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*(int*)a = 43;
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return 0;
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}
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void *Thread(void *a) {
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static __thread int Var = 42;
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pthread_t t;
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pthread_create(&t, 0, Thread2, &Var);
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Var = 42;
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barrier_wait(&barrier);
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pthread_join(t, 0);
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return 0;
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}
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int main() {
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barrier_init(&barrier, 2);
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pthread_t t;
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pthread_create(&t, 0, Thread, 0);
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pthread_join(t, 0);
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fprintf(stderr, "DONE\n");
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return 0;
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK-Linux: Location is TLS of thread T1.
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// CHECK-FreeBSD: Location is TLS of thread T1.
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// CHECK-NetBSD: Location is TLS of thread T1.
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// CHECK-Darwin: Location is heap block of size 4
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// CHECK: DONE
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