1 files changed, 97 insertions, 0 deletions
diff --git a/src/debug/createdump/memoryregion.h b/src/debug/createdump/memoryregion.h
new file mode 100644
index 0000000000..16c4d1c693
--- /dev/null
+++ b/src/debug/createdump/memoryregion.h
@@ -0,0 +1,97 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+struct MemoryRegion 
+{
+private:
+    uint32_t m_permissions;
+    uint64_t m_startAddress;
+    uint64_t m_endAddress;
+    uint64_t m_offset;
+
+    // The name used for NT_FILE output
+    char* m_fileName;
+
+public:
+    MemoryRegion(uint64_t start, uint64_t end) : 
+        m_permissions(PF_R | PF_W | PF_X),
+        m_startAddress(start),
+        m_endAddress(end),
+        m_offset(0),
+        m_fileName(nullptr)
+    {
+        assert((start & ~PAGE_MASK) == 0);
+        assert((end & ~PAGE_MASK) == 0);
+    }
+
+    MemoryRegion(uint32_t permissions, uint64_t start, uint64_t end, uint64_t offset, char* filename) : 
+        m_permissions(permissions),
+        m_startAddress(start),
+        m_endAddress(end),
+        m_offset(offset),
+        m_fileName(filename)
+    {
+        assert((start & ~PAGE_MASK) == 0);
+        assert((end & ~PAGE_MASK) == 0);
+    }
+
+    const uint32_t Permissions() const
+    {
+        return m_permissions;
+    }
+
+    const uint64_t StartAddress() const
+    {
+        return m_startAddress;
+    }
+
+    const uint64_t EndAddress() const
+    {
+        return m_endAddress;
+    }
+
+    const uint64_t Size() const 
+    {
+        return m_endAddress - m_startAddress;
+    }
+
+    const uint64_t Offset() const
+    {
+        return m_offset;
+    }
+
+    const char* FileName() const
+    {
+        return m_fileName;
+    }
+
+    bool operator<(const MemoryRegion& rhs) const
+    {
+        return (m_startAddress < rhs.m_startAddress) && (m_endAddress <= rhs.m_startAddress);
+    }
+
+    bool Contains(const MemoryRegion& rhs) const
+    {
+        return (m_startAddress <= rhs.m_startAddress) && (m_endAddress >= rhs.m_endAddress);
+    }
+
+    void Cleanup()
+    {
+        if (m_fileName != nullptr)
+        {
+            free(m_fileName);
+            m_fileName = nullptr;
+        }
+    }
+
+    void Print() const
+    {
+        if (m_fileName != nullptr) {
+            TRACE("%016lx - %016lx (%04ld) %016lx %x %s\n", m_startAddress, m_endAddress, (Size() >> PAGE_SHIFT), m_offset, m_permissions, m_fileName);
+        }
+        else {
+            TRACE("%016lx - %016lx (%04ld) %02x\n", m_startAddress, m_endAddress, (Size() >> PAGE_SHIFT), m_permissions);
+        }
+    }
+};