[asan] move more stuff to OS-specific files

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@147647 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/asan/asan_linux.cc b/lib/asan/asan_linux.cc
index cb50be9..bd92617 100644
--- a/lib/asan/asan_linux.cc
+++ b/lib/asan/asan_linux.cc
@@ -244,6 +244,12 @@
   CHECK(AddrIsInStack((uintptr_t)&attr));
 }
 
+void AsanDisableCoreDumper() {
+  struct rlimit nocore;
+  nocore.rlim_cur = 0;
+  nocore.rlim_max = 0;
+  setrlimit(RLIMIT_CORE, &nocore);
+}
 
 }  // namespace __asan