Index: test/lsan/TestCases/Linux/lit.local.cfg
===================================================================
--- /dev/null
+++ test/lsan/TestCases/Linux/lit.local.cfg
@@ -0,0 +1,9 @@
+def getRoot(config):
+  if not config.parent:
+    return config
+  return getRoot(config.parent)
+
+root = getRoot(config)
+
+if root.host_os not in ['Linux']:
+  config.unsupported = True
Index: test/lsan/TestCases/cleanup_in_tsd_destructor.c
===================================================================
--- /dev/null
+++ test/lsan/TestCases/cleanup_in_tsd_destructor.c
@@ -1,46 +0,0 @@
-// Regression test for thread lifetime tracking. Thread data should be
-// considered live during the thread's termination, at least until the
-// user-installed TSD destructors have finished running (since they may contain
-// additional cleanup tasks). LSan doesn't actually meet that goal 100%, but it
-// makes its best effort.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0:use_stacks=0:use_globals=0"
-// RUN: %clang_lsan %s -o %t
-// RUN: LSAN_OPTIONS=$LSAN_BASE:use_tls=1 %run %t
-// RUN: LSAN_OPTIONS=$LSAN_BASE:use_tls=0 not %run %t 2>&1 | FileCheck %s
-
-#include <assert.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "sanitizer/lsan_interface.h"
-#include "sanitizer_common/print_address.h"
-
-pthread_key_t key;
-__thread void *p;
-
-void key_destructor(void *arg) {
-  // Generally this may happen on a different thread.
-  __lsan_do_leak_check();
-}
-
-void *thread_func(void *arg) {
-  p = malloc(1337);
-  print_address("Test alloc: ", 1, p);
-  int res = pthread_setspecific(key, (void*)1);
-  assert(res == 0);
-  return 0;
-}
-
-int main() {
-  int res = pthread_key_create(&key, &key_destructor);
-  assert(res == 0);
-  pthread_t thread_id;
-  res = pthread_create(&thread_id, 0, thread_func, 0);
-  assert(res == 0);
-  res = pthread_join(thread_id, 0);
-  assert(res == 0);
-  return 0;
-}
-// CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
-// CHECK: [[ADDR]] (1337 bytes)
Index: test/lsan/TestCases/disabler_in_tsd_destructor.c
===================================================================
--- /dev/null
+++ test/lsan/TestCases/disabler_in_tsd_destructor.c
@@ -1,39 +0,0 @@
-// Regression test. Disabler should not depend on TSD validity.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0:use_stacks=0:use_globals=0:use_tls=1:use_ld_allocations=0"
-// RUN: %clang_lsan %s -o %t
-// RUN: LSAN_OPTIONS=$LSAN_BASE %run %t
-
-#include <assert.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "sanitizer/lsan_interface.h"
-
-pthread_key_t key;
-
-void key_destructor(void *arg) {
-  __lsan_disable();
-  void *p = malloc(1337);
-  // Break optimization.
-  fprintf(stderr, "Test alloc: %p.\n", p);
-  pthread_setspecific(key, 0);
-  __lsan_enable();
-}
-
-void *thread_func(void *arg) {
-  int res = pthread_setspecific(key, (void*)1);
-  assert(res == 0);
-  return 0;
-}
-
-int main() {
-  int res = pthread_key_create(&key, &key_destructor);
-  assert(res == 0);
-  pthread_t thread_id;
-  res = pthread_create(&thread_id, 0, thread_func, 0);
-  assert(res == 0);
-  res = pthread_join(thread_id, 0);
-  assert(res == 0);
-  return 0;
-}
Index: test/lsan/TestCases/fork.cc
===================================================================
--- /dev/null
+++ test/lsan/TestCases/fork.cc
@@ -1,24 +0,0 @@
-// Test that thread local data is handled correctly after forking without exec().
-// RUN: %clangxx_lsan %s -o %t
-// RUN: %run %t 2>&1
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-__thread void *thread_local_var;
-
-int main() {
-  int status = 0;
-  thread_local_var = malloc(1337);
-  pid_t pid = fork();
-  assert(pid >= 0);
-  if (pid > 0) {
-    waitpid(pid, &status, 0);
-    assert(WIFEXITED(status));
-    return WEXITSTATUS(status);
-  }
-  return 0;
-}
Index: test/lsan/TestCases/fork_threaded.cc
===================================================================
--- /dev/null
+++ test/lsan/TestCases/fork_threaded.cc
@@ -1,43 +0,0 @@
-// Test that thread local data is handled correctly after forking without
-// exec(). In this test leak checking is initiated from a non-main thread.
-// RUN: %clangxx_lsan %s -o %t
-// RUN: %run %t 2>&1
-
-#include <assert.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-__thread void *thread_local_var;
-
-void *exit_thread_func(void *arg) {
-  exit(0);
-}
-
-void ExitFromThread() {
-  pthread_t tid;
-  int res;
-  res = pthread_create(&tid, 0, exit_thread_func, 0);
-  assert(res == 0);
-  pthread_join(tid, 0);
-}
-
-int main() {
-  int status = 0;
-  thread_local_var = malloc(1337);
-  pid_t pid = fork();
-  assert(pid >= 0);
-  if (pid > 0) {
-    waitpid(pid, &status, 0);
-    assert(WIFEXITED(status));
-    return WEXITSTATUS(status);
-  } else {
-    // Spawn a thread and call exit() from there, to check that we track main
-    // thread's pid correctly even if leak checking is initiated from another
-    // thread.
-    ExitFromThread();
-  }
-  return 0;
-}
Index: test/lsan/TestCases/guard-page.c
===================================================================
--- /dev/null
+++ test/lsan/TestCases/guard-page.c
@@ -1,61 +0,0 @@
-// Check that if LSan finds that SP doesn't point into thread stack (e.g.
-// if swapcontext is used), LSan will not hit the guard page.
-// RUN: %clang_lsan %s -o %t && %run %t
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <pthread.h>
-#include <ucontext.h>
-
-pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-int ctxfunc_started = 0;
-
-static void die(const char* msg, int err) {
-  if (err == 0)
-    err = errno;
-  fprintf(stderr, "%s: %s\n", msg, strerror(err));
-  exit(EXIT_FAILURE);
-}
-
-static void ctxfunc() {
-  pthread_mutex_lock(&mutex);
-  ctxfunc_started = 1;
-  // printf("ctxfunc\n");
-  pthread_cond_signal(&cond);
-  pthread_mutex_unlock(&mutex);
-  // Leave this context alive when the program exits.
-  for (;;);
-}
-
-static void* thread(void* arg) {
-  (void)arg;
-  ucontext_t ctx;
-  void* stack;
-
-  if (getcontext(&ctx) < 0)
-    die("getcontext", 0);
-  stack = malloc(1 << 11);
-  if (stack == NULL)
-    die("malloc", 0);
-  ctx.uc_stack.ss_sp = stack;
-  ctx.uc_stack.ss_size = 1 << 11;
-  makecontext(&ctx, ctxfunc, 0);
-  setcontext(&ctx);
-  die("setcontext", 0);
-  return NULL;
-}
-
-int main() {
-  pthread_t tid;
-  int i;
-
-  pthread_mutex_lock(&mutex);
-  i = pthread_create(&tid, NULL, thread, NULL);
-  if (i != 0)
-    die("pthread_create", i);
-  while (!ctxfunc_started) pthread_cond_wait(&cond, &mutex);
-  pthread_mutex_unlock(&mutex);
-  return 0;
-}
Index: test/lsan/TestCases/use_tls_dynamic.cc
===================================================================
--- /dev/null
+++ test/lsan/TestCases/use_tls_dynamic.cc
@@ -1,52 +0,0 @@
-// Test that dynamically allocated TLS space is included in the root set.
-// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0:use_ld_allocations=0"
-// RUN: %clangxx %s -DBUILD_DSO -fPIC -shared -o %t-so.so
-// RUN: %clangxx_lsan %s -o %t
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
-// RUN: LSAN_OPTIONS="" %run %t 2>&1
-// UNSUPPORTED: i386-linux,i686-linux,arm
-
-#ifndef BUILD_DSO
-#include <assert.h>
-#include <dlfcn.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string>
-#include "sanitizer_common/print_address.h"
-
-int main(int argc, char *argv[]) {
-  std::string path = std::string(argv[0]) + "-so.so";
-
-  void *handle = dlopen(path.c_str(), RTLD_LAZY);
-  assert(handle != 0);
-  typedef void **(* store_t)(void *p);
-  store_t StoreToTLS = (store_t)dlsym(handle, "StoreToTLS");
-  assert(dlerror() == 0);
-
-  void *p = malloc(1337);
-  // If we don't  know about dynamic TLS, we will return a false leak above.
-  void **p_in_tls = StoreToTLS(p);
-  assert(*p_in_tls == p);
-  print_address("Test alloc: ", 1, p);
-  return 0;
-}
-// CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
-// CHECK: LeakSanitizer: detected memory leaks
-// CHECK: [[ADDR]] (1337 bytes)
-// CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer:
-
-#else  // BUILD_DSO
-// A loadable module with a large thread local section, which would require
-// allocation of a new TLS storage chunk when loaded with dlopen(). We use it
-// to test the reachability of such chunks in LSan tests.
-
-// This must be large enough that it doesn't fit into preallocated static TLS
-// space (see STATIC_TLS_SURPLUS in glibc).
-__thread void *huge_thread_local_array[(1 << 20) / sizeof(void *)]; // NOLINT
-
-extern "C" void **StoreToTLS(void *p) {
-  huge_thread_local_array[0] = p;
-  return &huge_thread_local_array[0];
-}
-#endif  // BUILD_DSO
Index: test/lsan/TestCases/use_tls_pthread_specific_dynamic.cc
===================================================================
--- /dev/null
+++ test/lsan/TestCases/use_tls_pthread_specific_dynamic.cc
@@ -1,38 +0,0 @@
-// Test that dynamically allocated thread-specific storage is included in the root set.
-// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
-// RUN: %clangxx_lsan %s -o %t
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
-// RUN: LSAN_OPTIONS="" %run %t 2>&1
-
-#include <assert.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "sanitizer_common/print_address.h"
-
-// From glibc: this many keys are stored in the thread descriptor directly.
-const unsigned PTHREAD_KEY_2NDLEVEL_SIZE = 32;
-
-int main() {
-  static const unsigned kDummyKeysCount = PTHREAD_KEY_2NDLEVEL_SIZE;
-  int res;
-  pthread_key_t dummy_keys[kDummyKeysCount];
-  for (unsigned i = 0; i < kDummyKeysCount; i++) {
-    res = pthread_key_create(&dummy_keys[i], NULL);
-    assert(res == 0);
-  }
-  pthread_key_t key;
-  res = pthread_key_create(&key, NULL);
-  assert(key >= PTHREAD_KEY_2NDLEVEL_SIZE);
-  assert(res == 0);
-  void *p  = malloc(1337);
-  res = pthread_setspecific(key, p);
-  assert(res == 0);
-  print_address("Test alloc: ", 1, p);
-  return 0;
-}
-// CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
-// CHECK: LeakSanitizer: detected memory leaks
-// CHECK: [[ADDR]] (1337 bytes)
-// CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer:
Index: test/lsan/TestCases/use_tls_pthread_specific_static.cc
===================================================================
--- /dev/null
+++ test/lsan/TestCases/use_tls_pthread_specific_static.cc
@@ -1,32 +0,0 @@
-// Test that statically allocated thread-specific storage is included in the root set.
-// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
-// RUN: %clangxx_lsan %s -o %t
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
-// RUN: LSAN_OPTIONS="" %run %t 2>&1
-
-#include <assert.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "sanitizer_common/print_address.h"
-
-// From glibc: this many keys are stored in the thread descriptor directly.
-const unsigned PTHREAD_KEY_2NDLEVEL_SIZE = 32;
-
-int main() {
-  pthread_key_t key;
-  int res;
-  res = pthread_key_create(&key, NULL);
-  assert(res == 0);
-  assert(key < PTHREAD_KEY_2NDLEVEL_SIZE);
-  void *p = malloc(1337);
-  res = pthread_setspecific(key, p);
-  assert(res == 0);
-  print_address("Test alloc: ", 1, p);
-  return 0;
-}
-// CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
-// CHECK: LeakSanitizer: detected memory leaks
-// CHECK: [[ADDR]] (1337 bytes)
-// CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer:
Index: test/lsan/TestCases/use_tls_static.cc
===================================================================
--- /dev/null
+++ test/lsan/TestCases/use_tls_static.cc
@@ -1,22 +0,0 @@
-// Test that statically allocated TLS space is included in the root set.
-// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
-// RUN: %clangxx_lsan %s -o %t
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
-// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
-// RUN: LSAN_OPTIONS="" %run %t 2>&1
-
-#include <stdio.h>
-#include <stdlib.h>
-#include "sanitizer_common/print_address.h"
-
-__thread void *tls_var;
-
-int main() {
-  tls_var = malloc(1337);
-  print_address("Test alloc: ", 1, tls_var);
-  return 0;
-}
-// CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
-// CHECK: LeakSanitizer: detected memory leaks
-// CHECK: [[ADDR]] (1337 bytes)
-// CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: