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authorKostya Kortchinsky <kostyak@google.com>2017-12-13 20:41:35 +0000
committerKostya Kortchinsky <kostyak@google.com>2017-12-13 20:41:35 +0000
commite48d698dc9f9532fb51a8eff9558176c60da4300 (patch)
tree64534f0401b05bbdd9f0461996b4f4c353f77b25 /include/sanitizer
parentad977cc9521dd2e264a2cdcbba3b2afc5084d0d3 (diff)
[scudo] Adding a public Scudo interface
Summary: The first and only function to start with allows to set the soft or hard RSS limit at runtime. Add associated tests. Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: mgorny, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D41128 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320611 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/sanitizer')
-rw-r--r--include/sanitizer/scudo_interface.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/include/sanitizer/scudo_interface.h b/include/sanitizer/scudo_interface.h
new file mode 100644
index 000000000..cab7e0f5f
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+++ b/include/sanitizer/scudo_interface.h
@@ -0,0 +1,34 @@
+//===-- sanitizer/scudo_interface.h -----------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+/// Public Scudo interface header.
+//
+//===----------------------------------------------------------------------===//
+#ifndef SANITIZER_SCUDO_INTERFACE_H_
+#define SANITIZER_SCUDO_INTERFACE_H_
+
+#include <sanitizer/common_interface_defs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ // This function may be optionally provided by a user and should return
+ // a string containing Scudo runtime options. See scudo_flags.h for details.
+ const char* __scudo_default_options();
+
+ // This function allows to set the RSS limit at runtime. This can be either
+ // the hard limit (HardLimit=1) or the soft limit (HardLimit=0). The limit
+ // can be removed by setting LimitMb to 0. This function's parameters should
+ // be fully trusted to avoid security mishaps.
+ void __scudo_set_rss_limit(unsigned long LimitMb, int HardLimit);
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // SANITIZER_SCUDO_INTERFACE_H_