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authorDean Michael Berris <dberris@google.com>2016-07-21 07:39:55 +0000
committerDean Michael Berris <dberris@google.com>2016-07-21 07:39:55 +0000
commit1158112aee03cd0a0d917dfda52fab5ba416339f (patch)
tree6ce3e90a03028e318bc85af3af6c35b520fe23c4 /lib/xray/xray_flags.h
parent60e43fa0a2d84de06d5bac153b931844886ded9e (diff)
[compiler-rt][XRay] re-submitting r276117, with fixes for build breakage due to extraneous and missing dependencies and attempts to build on unsupported OSes
Summary: This is a fixed-up version of D21612, to address failure identified post-commit. Original commit description: This patch implements the initialisation and patching routines for the XRay runtime, along with the necessary trampolines for function entry/exit handling. For now we only define the basic hooks for allowing an implementation to define a handler that gets run on function entry/exit. We expose a minimal API for controlling the behaviour of the runtime (patching, cleanup, and setting the handler to invoke when instrumenting). Fixes include: - Gating XRay build to only Linux x86_64 and with the right dependencies in case it is the only library being built - Including <cstddef> to fix std::size_t issue Reviewers: kcc, rnk, echristo Subscribers: mehdi_amini, llvm-commits Differential Revision: https://reviews.llvm.org/D22611 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@276251 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/xray/xray_flags.h')
-rw-r--r--lib/xray/xray_flags.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/xray/xray_flags.h b/lib/xray/xray_flags.h
new file mode 100644
index 000000000..2ecf5fb9b
--- /dev/null
+++ b/lib/xray/xray_flags.h
@@ -0,0 +1,37 @@
+//===-- xray_flags.h -------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of XRay, a dynamic runtime instruementation system.
+//
+// XRay runtime flags.
+//===----------------------------------------------------------------------===//
+
+#ifndef XRAY_FLAGS_H
+#define XRAY_FLAGS_H
+
+#include "sanitizer_common/sanitizer_flag_parser.h"
+
+namespace __xray {
+
+struct Flags {
+#define XRAY_FLAG(Type, Name, DefaultValue, Description) Type Name;
+#include "xray_flags.inc"
+#undef XRAY_FLAG
+
+ void SetDefaults();
+};
+
+extern Flags xray_flags_dont_use_directly;
+inline Flags *flags() { return &xray_flags_dont_use_directly; }
+
+void InitializeFlags();
+
+} // namespace __xray
+
+#endif // XRAY_FLAGS_H