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// RUN: %clangxx %s -DBUILD_DSO -fPIC -shared -o %t.so
// RUN: %clangxx --std=c++11 %s -o %t
// RUN: %env_tool_opts=verbosity=2 %run %t 2>&1 | FileCheck %s
// Does not call __tls_get_addr
// UNSUPPORTED: i386-linux
// Do not intercept __tls_get_addr
// UNSUPPORTED: lsan, ubsan, android
// FIXME: Investigate
// UNSUPPORTED: powerpc64
#include <string.h>
#ifndef BUILD_DSO
#include <assert.h>
#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>
char buff[10000];
int main(int argc, char *argv[]) {
sprintf(buff, "rm -f %s.so.*", argv[0]);
system(buff);
void *prev_handle = 0;
for (int i = 0; i < 600; ++i) {
sprintf(buff, "cp %s.so %s.so.%d", argv[0], argv[0], i);
system(buff);
sprintf(buff, "%s.so.%d", argv[0], i);
void *handle = dlopen(buff, RTLD_LAZY);
assert(handle != 0);
assert(handle != prev_handle);
prev_handle = handle;
typedef void (*FnType)(char c);
((FnType)dlsym(handle, "StoreToTLS"))(i);
}
return 0;
}
#else // BUILD_DSO
__thread char huge_thread_local_array[1 << 12];
extern "C" void StoreToTLS(char c) {
memset(huge_thread_local_array, c, sizeof(huge_thread_local_array));
}
#endif // BUILD_DSO
// CHECK: DTLS_Find [[DTLS:0x[a-f0-9]+]] {{[0-9]+}}
// CHECK: DTLS_NextBlock [[DTLS]] 0
// CHECK: DTLS_Find [[DTLS:0x[a-f0-9]+]] {{[0-9]+}}
// CHECK: DTLS_NextBlock [[DTLS]] 1
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