Update compiler-rt to trunk r224034. This brings a number of new

builtins, and also the various sanitizers.  Support for these will be
added in a later commit.

1 files changed, 65 insertions, 0 deletions

diff --git a/contrib/compiler-rt/lib/tsan/go/test.c b/contrib/compiler-rt/lib/tsan/go/test.c
new file mode 100644
index 000000000000..94433f1b8c22
--- /dev/null
+++ b/contrib/compiler-rt/lib/tsan/go/test.c
@@ -0,0 +1,65 @@
+//===-- test.c ------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Sanity test for Go runtime.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+
+void __tsan_init(void **thr, void (*cb)(void*));
+void __tsan_fini();
+void __tsan_map_shadow(void *addr, unsigned long size);
+void __tsan_go_start(void *thr, void **chthr, void *pc);
+void __tsan_go_end(void *thr);
+void __tsan_read(void *thr, void *addr, void *pc);
+void __tsan_write(void *thr, void *addr, void *pc);
+void __tsan_func_enter(void *thr, void *pc);
+void __tsan_func_exit(void *thr);
+void __tsan_malloc(void *p, unsigned long sz);
+void __tsan_acquire(void *thr, void *addr);
+void __tsan_release(void *thr, void *addr);
+void __tsan_release_merge(void *thr, void *addr);
+
+void symbolize_cb(void *ctx) {}
+
+char buf0[100<<10];
+
+void foobar() {}
+void barfoo() {}
+
+int main(void) {
+  void *thr0 = 0;
+  char *buf = (char*)((unsigned long)buf0 + (64<<10) - 1 & ~((64<<10) - 1));
+  __tsan_malloc(buf, 10);
+  __tsan_init(&thr0, symbolize_cb);
+  __tsan_map_shadow(buf, 4096);
+  __tsan_func_enter(thr0, (char*)&main + 1);
+  __tsan_malloc(buf, 10);
+  __tsan_release(thr0, buf);
+  __tsan_release_merge(thr0, buf);
+  void *thr1 = 0;
+  __tsan_go_start(thr0, &thr1, (char*)&barfoo + 1);
+  void *thr2 = 0;
+  __tsan_go_start(thr0, &thr2, (char*)&barfoo + 1);
+  __tsan_func_enter(thr1, (char*)&foobar + 1);
+  __tsan_func_enter(thr1, (char*)&foobar + 1);
+  __tsan_write(thr1, buf, (char*)&barfoo + 1);
+  __tsan_acquire(thr1, buf);
+  __tsan_func_exit(thr1);
+  __tsan_func_exit(thr1);
+  __tsan_go_end(thr1);
+  __tsan_func_enter(thr2, (char*)&foobar + 1);
+  __tsan_read(thr2, buf, (char*)&barfoo + 1);
+  __tsan_func_exit(thr2);
+  __tsan_go_end(thr2);
+  __tsan_func_exit(thr0);
+  __tsan_fini();
+  return 0;
+}