summaryrefslogtreecommitdiffstats
path: root/compiler-rt/lib/msan/lit_tests/dtls_test.c
diff options
context:
space:
mode:
Diffstat (limited to 'compiler-rt/lib/msan/lit_tests/dtls_test.c')
-rw-r--r--compiler-rt/lib/msan/lit_tests/dtls_test.c60
1 files changed, 0 insertions, 60 deletions
diff --git a/compiler-rt/lib/msan/lit_tests/dtls_test.c b/compiler-rt/lib/msan/lit_tests/dtls_test.c
deleted file mode 100644
index c88e50f1df0..00000000000
--- a/compiler-rt/lib/msan/lit_tests/dtls_test.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/* RUN: %clang_msan -m64 %s -o %t
- RUN: %clang_msan -m64 %s -DBUILD_SO -fPIC -o %t-so.so -shared
- RUN: not %t 2>&1 | FileCheck %s
- CHECK: MemorySanitizer: use-of-uninitialized-value
-
- This is an actual bug in msan/glibc integration,
- see https://sourceware.org/bugzilla/show_bug.cgi?id=16291
-*/
-
-#ifndef BUILD_SO
-#include <assert.h>
-#include <dlfcn.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <pthread.h>
-
-typedef long *(* get_t)();
-get_t GetTls;
-void *Thread1(void *unused) {
- long uninitialized;
- long *x = GetTls();
- if (*x)
- fprintf(stderr, "bar\n");
- *x = uninitialized;
- fprintf(stderr, "stack: %p dtls: %p\n", &x, x);
- return 0;
-}
-
-void *Thread2(void *unused) {
- long *x = GetTls();
- fprintf(stderr, "stack: %p dtls: %p\n", &x, x);
- if (*x)
- fprintf(stderr, "foo\n"); // False negative here.
- return 0;
-}
-
-int main(int argc, char *argv[]) {
- char path[4096];
- snprintf(path, sizeof(path), "%s-so.so", argv[0]);
- int i;
-
- void *handle = dlopen(path, RTLD_LAZY);
- if (!handle) fprintf(stderr, "%s\n", dlerror());
- assert(handle != 0);
- GetTls = (get_t)dlsym(handle, "GetTls");
- assert(dlerror() == 0);
-
- pthread_t t;
- pthread_create(&t, 0, Thread1, 0);
- pthread_join(t, 0);
- pthread_create(&t, 0, Thread2, 0);
- pthread_join(t, 0);
- return 0;
-}
-#else // BUILD_SO
-__thread long huge_thread_local_array[1 << 17];
-long *GetTls() {
- return &huge_thread_local_array[0];
-}
-#endif
OpenPOWER on IntegriCloud