1 files changed, 61 insertions, 0 deletions
diff --git a/compiler-rt/include/profile/MemProfData.inc b/compiler-rt/include/profile/MemProfData.inc
new file mode 100644
index 000000000000..d64227e4ba31
--- /dev/null
+++ b/compiler-rt/include/profile/MemProfData.inc
@@ -0,0 +1,61 @@
+#ifndef MEMPROF_DATA_INC
+#define MEMPROF_DATA_INC
+/*===-- MemProfData.inc - MemProf profiling runtime structures -*- C++ -*-=== *\
+|*
+|* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+|* See https://llvm.org/LICENSE.txt for license information.
+|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+|*
+\*===----------------------------------------------------------------------===*/
+/*
+ * This is the main file that defines all the data structure, signature,
+ * constant literals that are shared across profiling runtime library,
+ * and host tools (reader/writer).
+ *
+ * This file has two identical copies. The primary copy lives in LLVM and
+ * the other one sits in compiler-rt/include/profile directory. To make changes
+ * in this file, first modify the primary copy and copy it over to compiler-rt.
+ * Testing of any change in this file can start only after the two copies are
+ * synced up.
+ *
+\*===----------------------------------------------------------------------===*/
+
+
+#ifdef _MSC_VER
+#define PACKED(__decl__) __pragma(pack(push,1)) __decl__ __pragma(pack(pop))
+#else
+#define PACKED(__decl__) __decl__ __attribute__((__packed__))
+#endif
+
+// A 64-bit magic number to uniquely identify the raw binary memprof profile file.
+#define MEMPROF_RAW_MAGIC_64                                                                        \
+  ((uint64_t)255 << 56 | (uint64_t)'m' << 48 | (uint64_t)'p' << 40 | (uint64_t)'r' << 32 |          \
+   (uint64_t)'o' << 24 | (uint64_t)'f' << 16 | (uint64_t)'r' << 8 | (uint64_t)129)
+
+// The version number of the raw binary format.
+#define MEMPROF_RAW_VERSION 1ULL
+
+namespace llvm {
+namespace memprof {
+// A struct describing the header used for the raw binary memprof profile format.
+PACKED(struct Header {
+  uint64_t Magic;
+  uint64_t Version;
+  uint64_t TotalSize;
+  uint64_t SegmentOffset;
+  uint64_t MIBOffset;
+  uint64_t StackOffset;
+});
+
+// A struct describing the information necessary to describe a /proc/maps
+// segment entry for a particular binary/library identified by its build id.
+PACKED(struct SegmentEntry {
+  uint64_t Start;
+  uint64_t End;
+  uint64_t Offset;
+  uint8_t BuildId[32];
+});
+} // namespace memprof
+} // namespace llvm
+
+#endif