diff --git a/src/gpgmm/common/Backend.h b/src/gpgmm/common/Backend.h
index fc7fc19a..79eaad31 100644
--- a/src/gpgmm/common/Backend.h
+++ b/src/gpgmm/common/Backend.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_BACKEND_H_
-#define GPGMM_COMMON_BACKEND_H_
+#ifndef SRC_GPGMM_COMMON_BACKEND_H_
+#define SRC_GPGMM_COMMON_BACKEND_H_
 
 namespace gpgmm {
 
@@ -45,4 +45,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_BACKEND_H_
+#endif  // SRC_GPGMM_COMMON_BACKEND_H_
diff --git a/src/gpgmm/common/BlockAllocator.h b/src/gpgmm/common/BlockAllocator.h
index 231028b7..08635182 100644
--- a/src/gpgmm/common/BlockAllocator.h
+++ b/src/gpgmm/common/BlockAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_BLOCKALLOCATOR_H_
-#define GPGMM_COMMON_BLOCKALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_BLOCKALLOCATOR_H_
+#define SRC_GPGMM_COMMON_BLOCKALLOCATOR_H_
 
 #include "gpgmm/common/MemoryBlock.h"
 #include "gpgmm/common/Object.h"
@@ -32,4 +32,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_BLOCKALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_BLOCKALLOCATOR_H_
diff --git a/src/gpgmm/common/BuddyBlockAllocator.h b/src/gpgmm/common/BuddyBlockAllocator.h
index c5a991af..644b704c 100644
--- a/src/gpgmm/common/BuddyBlockAllocator.h
+++ b/src/gpgmm/common/BuddyBlockAllocator.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_BUDDYBLOCKALLOCATOR_H_
-#define GPGMM_COMMON_BUDDYBLOCKALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_BUDDYBLOCKALLOCATOR_H_
+#define SRC_GPGMM_COMMON_BUDDYBLOCKALLOCATOR_H_
 
 #include "gpgmm/common/BlockAllocator.h"
 #include "gpgmm/utils/Limits.h"
@@ -113,4 +113,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_BUDDYBLOCKALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_BUDDYBLOCKALLOCATOR_H_
diff --git a/src/gpgmm/common/BuddyMemoryAllocator.h b/src/gpgmm/common/BuddyMemoryAllocator.h
index 37ca3bff..41416e56 100644
--- a/src/gpgmm/common/BuddyMemoryAllocator.h
+++ b/src/gpgmm/common/BuddyMemoryAllocator.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_BUDDYMEMORYALLOCATOR_H_
-#define GPGMM_COMMON_BUDDYMEMORYALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_BUDDYMEMORYALLOCATOR_H_
+#define SRC_GPGMM_COMMON_BUDDYMEMORYALLOCATOR_H_
 
 #include "gpgmm/common/BuddyBlockAllocator.h"
 #include "gpgmm/common/IndexedMemoryPool.h"
@@ -68,4 +68,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_BUDDYMEMORYALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_BUDDYMEMORYALLOCATOR_H_
diff --git a/src/gpgmm/common/ConditionalMemoryAllocator.h b/src/gpgmm/common/ConditionalMemoryAllocator.h
index 99b2b97a..9698e867 100644
--- a/src/gpgmm/common/ConditionalMemoryAllocator.h
+++ b/src/gpgmm/common/ConditionalMemoryAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_CONDITIONALMEMORYALLOCATOR_H_
-#define GPGMM_COMMON_CONDITIONALMEMORYALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_CONDITIONALMEMORYALLOCATOR_H_
+#define SRC_GPGMM_COMMON_CONDITIONALMEMORYALLOCATOR_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 
@@ -51,4 +51,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_CONDITIONALMEMORYALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_CONDITIONALMEMORYALLOCATOR_H_
diff --git a/src/gpgmm/common/DedicatedMemoryAllocator.h b/src/gpgmm/common/DedicatedMemoryAllocator.h
index bf5ce46d..78250540 100644
--- a/src/gpgmm/common/DedicatedMemoryAllocator.h
+++ b/src/gpgmm/common/DedicatedMemoryAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_DEDICATEDMEMORYALLOCATOR_H_
-#define GPGMM_COMMON_DEDICATEDMEMORYALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_DEDICATEDMEMORYALLOCATOR_H_
+#define SRC_GPGMM_COMMON_DEDICATEDMEMORYALLOCATOR_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 
@@ -45,4 +45,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_DEDICATEDMEMORYALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_DEDICATEDMEMORYALLOCATOR_H_
diff --git a/src/gpgmm/common/Defaults.h b/src/gpgmm/common/Defaults.h
index 7f64ab15..d9be1757 100644
--- a/src/gpgmm/common/Defaults.h
+++ b/src/gpgmm/common/Defaults.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_DEFAULTS_H_
-#define GPGMM_COMMON_DEFAULTS_H_
+#ifndef SRC_GPGMM_COMMON_DEFAULTS_H_
+#define SRC_GPGMM_COMMON_DEFAULTS_H_
 
 #include <cstdint>
 
@@ -23,4 +23,4 @@ namespace gpgmm {
     static constexpr float kDefaultMemoryGrowthFactor = 1.25f;         // 25% growth
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_DEFAULTS_H_
+#endif  // SRC_GPGMM_COMMON_DEFAULTS_H_
diff --git a/src/gpgmm/common/Error.h b/src/gpgmm/common/Error.h
index 76682c42..e9a2d7ad 100644
--- a/src/gpgmm/common/Error.h
+++ b/src/gpgmm/common/Error.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_ERROR_H_
-#define GPGMM_COMMON_ERROR_H_
+#ifndef SRC_GPGMM_COMMON_ERROR_H_
+#define SRC_GPGMM_COMMON_ERROR_H_
 
 #include "gpgmm/utils/Assert.h"
 
@@ -102,4 +102,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_ERROR_H_
+#endif  // SRC_GPGMM_COMMON_ERROR_H_
diff --git a/src/gpgmm/common/EventMessage.h b/src/gpgmm/common/EventMessage.h
index d87680c0..99d71313 100644
--- a/src/gpgmm/common/EventMessage.h
+++ b/src/gpgmm/common/EventMessage.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_EVENT_MESSAGE_H_
-#define GPGMM_COMMON_EVENT_MESSAGE_H_
+#ifndef SRC_GPGMM_COMMON_EVENTMESSAGE_H_
+#define SRC_GPGMM_COMMON_EVENTMESSAGE_H_
 
 #include "gpgmm/common/Message.h"
 #include "gpgmm/common/Object.h"
@@ -78,4 +78,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_EVENT_MESSAGE_H_
+#endif  // SRC_GPGMM_COMMON_EVENTMESSAGE_H_
diff --git a/src/gpgmm/common/EventTraceWriter.h b/src/gpgmm/common/EventTraceWriter.h
index 8776824f..9d1704d2 100644
--- a/src/gpgmm/common/EventTraceWriter.h
+++ b/src/gpgmm/common/EventTraceWriter.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_EVENTTRACEWRITER_H_
-#define GPGMM_COMMON_EVENTTRACEWRITER_H_
+#ifndef SRC_GPGMM_COMMON_EVENTTRACEWRITER_H_
+#define SRC_GPGMM_COMMON_EVENTTRACEWRITER_H_
 
 #include "gpgmm/common/TraceEvent.h"
 
@@ -65,4 +65,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_EVENTTRACEWRITER_H_
+#endif  // SRC_GPGMM_COMMON_EVENTTRACEWRITER_H_
diff --git a/src/gpgmm/common/GPUInfo.h b/src/gpgmm/common/GPUInfo.h
index fc30d0f4..22411a8a 100644
--- a/src/gpgmm/common/GPUInfo.h
+++ b/src/gpgmm/common/GPUInfo.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_GPUINFO_H_
-#define GPGMM_COMMON_GPUINFO_H_
+#ifndef SRC_GPGMM_COMMON_GPUINFO_H_
+#define SRC_GPGMM_COMMON_GPUINFO_H_
 
 namespace gpgmm {
 
@@ -28,4 +28,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_GPUINFO_H_
+#endif  // SRC_GPGMM_COMMON_GPUINFO_H_
diff --git a/src/gpgmm/common/IndexedMemoryPool.h b/src/gpgmm/common/IndexedMemoryPool.h
index a30429fb..754f8085 100644
--- a/src/gpgmm/common/IndexedMemoryPool.h
+++ b/src/gpgmm/common/IndexedMemoryPool.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_INDEXEDMEMORYPOOL_H_
-#define GPGMM_COMMON_INDEXEDMEMORYPOOL_H_
+#ifndef SRC_GPGMM_COMMON_INDEXEDMEMORYPOOL_H_
+#define SRC_GPGMM_COMMON_INDEXEDMEMORYPOOL_H_
 
 #include "gpgmm/common/MemoryPool.h"
 
@@ -39,4 +39,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_INDEXEDMEMORYPOOL_H_
+#endif  // SRC_GPGMM_COMMON_INDEXEDMEMORYPOOL_H_
diff --git a/src/gpgmm/common/JSONSerializer.h b/src/gpgmm/common/JSONSerializer.h
index cdf67a8e..ca58d180 100644
--- a/src/gpgmm/common/JSONSerializer.h
+++ b/src/gpgmm/common/JSONSerializer.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_JSONSERIALIZER_H_
-#define GPGMM_COMMON_JSONSERIALIZER_H_
+#ifndef SRC_GPGMM_COMMON_JSONSERIALIZER_H_
+#define SRC_GPGMM_COMMON_JSONSERIALIZER_H_
 
 #include "gpgmm/utils/JSONEncoder.h"
 
@@ -33,4 +33,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_JSONSERIALIZER_H_
+#endif  // SRC_GPGMM_COMMON_JSONSERIALIZER_H_
diff --git a/src/gpgmm/common/LIFOMemoryPool.h b/src/gpgmm/common/LIFOMemoryPool.h
index ffa948d3..d8770d69 100644
--- a/src/gpgmm/common/LIFOMemoryPool.h
+++ b/src/gpgmm/common/LIFOMemoryPool.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_LIFOMEMORYPOOL_H_
-#define GPGMM_COMMON_LIFOMEMORYPOOL_H_
+#ifndef SRC_GPGMM_COMMON_LIFOMEMORYPOOL_H_
+#define SRC_GPGMM_COMMON_LIFOMEMORYPOOL_H_
 
 #include "gpgmm/common/MemoryPool.h"
 
@@ -41,4 +41,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_LIFOMEMORYPOOL_H_
+#endif  // SRC_GPGMM_COMMON_LIFOMEMORYPOOL_H_
diff --git a/src/gpgmm/common/Memory.h b/src/gpgmm/common/Memory.h
index 944b7a99..b3951842 100644
--- a/src/gpgmm/common/Memory.h
+++ b/src/gpgmm/common/Memory.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_MEMORY_H_
-#define GPGMM_COMMON_MEMORY_H_
+#ifndef SRC_GPGMM_COMMON_MEMORY_H_
+#define SRC_GPGMM_COMMON_MEMORY_H_
 
 #include "gpgmm/common/Object.h"
 #include "gpgmm/utils/RefCount.h"
@@ -48,4 +48,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_MEMORY_H_
+#endif  // SRC_GPGMM_COMMON_MEMORY_H_
diff --git a/src/gpgmm/common/MemoryAllocation.h b/src/gpgmm/common/MemoryAllocation.h
index dbb41f62..e6146480 100644
--- a/src/gpgmm/common/MemoryAllocation.h
+++ b/src/gpgmm/common/MemoryAllocation.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_MEMORYALLOCATION_H_
-#define GPGMM_COMMON_MEMORYALLOCATION_H_
+#ifndef SRC_GPGMM_COMMON_MEMORYALLOCATION_H_
+#define SRC_GPGMM_COMMON_MEMORYALLOCATION_H_
 
 #include "gpgmm/common/Object.h"
 #include "gpgmm/utils/Limits.h"
@@ -101,4 +101,4 @@ namespace gpgmm {
     };
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_MEMORYALLOCATION_H_
+#endif  // SRC_GPGMM_COMMON_MEMORYALLOCATION_H_
diff --git a/src/gpgmm/common/MemoryAllocator.h b/src/gpgmm/common/MemoryAllocator.h
index 76d716a6..bc9dafb7 100644
--- a/src/gpgmm/common/MemoryAllocator.h
+++ b/src/gpgmm/common/MemoryAllocator.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_MEMORYALLOCATOR_H_
-#define GPGMM_COMMON_MEMORYALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_MEMORYALLOCATOR_H_
+#define SRC_GPGMM_COMMON_MEMORYALLOCATOR_H_
 
 #include "gpgmm/common/BlockAllocator.h"
 #include "gpgmm/common/Error.h"
@@ -259,4 +259,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_MEMORYALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_MEMORYALLOCATOR_H_
diff --git a/src/gpgmm/common/MemoryBlock.h b/src/gpgmm/common/MemoryBlock.h
index b5f85191..75489fcd 100644
--- a/src/gpgmm/common/MemoryBlock.h
+++ b/src/gpgmm/common/MemoryBlock.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_MEMORYBLOCK_H_
-#define GPGMM_COMMON_MEMORYBLOCK_H_
+#ifndef SRC_GPGMM_COMMON_MEMORYBLOCK_H_
+#define SRC_GPGMM_COMMON_MEMORYBLOCK_H_
 
 #include "gpgmm/utils/Limits.h"
 
@@ -26,4 +26,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_MEMORYBLOCK_H_
+#endif  // SRC_GPGMM_COMMON_MEMORYBLOCK_H_
diff --git a/src/gpgmm/common/MemoryCache.h b/src/gpgmm/common/MemoryCache.h
index 951decef..718d4ea8 100644
--- a/src/gpgmm/common/MemoryCache.h
+++ b/src/gpgmm/common/MemoryCache.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_MEMORYCACHE_H_
-#define GPGMM_COMMON_MEMORYCACHE_H_
+#ifndef SRC_GPGMM_COMMON_MEMORYCACHE_H_
+#define SRC_GPGMM_COMMON_MEMORYCACHE_H_
 
 #include "gpgmm/utils/Assert.h"
 #include "gpgmm/utils/NonCopyable.h"
@@ -212,4 +212,4 @@ namespace gpgmm {
     };
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_MEMORYCACHE_H_
+#endif  // SRC_GPGMM_COMMON_MEMORYCACHE_H_
diff --git a/src/gpgmm/common/MemoryPool.h b/src/gpgmm/common/MemoryPool.h
index fb1329d8..b5ddff3d 100644
--- a/src/gpgmm/common/MemoryPool.h
+++ b/src/gpgmm/common/MemoryPool.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_MEMORYPOOL_H_
-#define GPGMM_COMMON_MEMORYPOOL_H_
+#ifndef SRC_GPGMM_COMMON_MEMORYPOOL_H_
+#define SRC_GPGMM_COMMON_MEMORYPOOL_H_
 
 #include "gpgmm/common/MemoryAllocation.h"
 #include "gpgmm/utils/Limits.h"
@@ -78,4 +78,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_MEMORYPOOL_H_
+#endif  // SRC_GPGMM_COMMON_MEMORYPOOL_H_
diff --git a/src/gpgmm/common/Message.h b/src/gpgmm/common/Message.h
index 5940c239..05f89be6 100644
--- a/src/gpgmm/common/Message.h
+++ b/src/gpgmm/common/Message.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_MESSAGE_H_
-#define GPGMM_COMMON_MESSAGE_H_
+#ifndef SRC_GPGMM_COMMON_MESSAGE_H_
+#define SRC_GPGMM_COMMON_MESSAGE_H_
 
 namespace gpgmm {
 
@@ -50,4 +50,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_MESSAGE_H_
+#endif  // SRC_GPGMM_COMMON_MESSAGE_H_
diff --git a/src/gpgmm/common/Object.h b/src/gpgmm/common/Object.h
index 74886aec..1d237ebe 100644
--- a/src/gpgmm/common/Object.h
+++ b/src/gpgmm/common/Object.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_OBJECT_H_
-#define GPGMM_COMMON_OBJECT_H_
+#ifndef SRC_GPGMM_COMMON_OBJECT_H_
+#define SRC_GPGMM_COMMON_OBJECT_H_
 
 namespace gpgmm {
 
@@ -35,4 +35,4 @@ namespace gpgmm {
     }
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_OBJECT_H_
+#endif  // SRC_GPGMM_COMMON_OBJECT_H_
diff --git a/src/gpgmm/common/PooledMemoryAllocator.h b/src/gpgmm/common/PooledMemoryAllocator.h
index a01f4ee9..d90dae35 100644
--- a/src/gpgmm/common/PooledMemoryAllocator.h
+++ b/src/gpgmm/common/PooledMemoryAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_POOLEDMEMORYALLOCATOR_H_
-#define GPGMM_COMMON_POOLEDMEMORYALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_POOLEDMEMORYALLOCATOR_H_
+#define SRC_GPGMM_COMMON_POOLEDMEMORYALLOCATOR_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 
@@ -47,4 +47,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_POOLEDMEMORYALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_POOLEDMEMORYALLOCATOR_H_
diff --git a/src/gpgmm/common/SegmentedMemoryAllocator.h b/src/gpgmm/common/SegmentedMemoryAllocator.h
index d728c3e0..83fce8a7 100644
--- a/src/gpgmm/common/SegmentedMemoryAllocator.h
+++ b/src/gpgmm/common/SegmentedMemoryAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_SEGMENTEDMEMORYALLOCATOR_H_
-#define GPGMM_COMMON_SEGMENTEDMEMORYALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_SEGMENTEDMEMORYALLOCATOR_H_
+#define SRC_GPGMM_COMMON_SEGMENTEDMEMORYALLOCATOR_H_
 
 #include "gpgmm/common/LIFOMemoryPool.h"
 #include "gpgmm/common/MemoryAllocator.h"
@@ -60,4 +60,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_SEGMENTEMEMORYALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_SEGMENTEMEMORYALLOCATOR_H_
diff --git a/src/gpgmm/common/SizeClass.h b/src/gpgmm/common/SizeClass.h
index f089c9cc..ed956bc4 100644
--- a/src/gpgmm/common/SizeClass.h
+++ b/src/gpgmm/common/SizeClass.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_SIZECLASS_H_
-#define GPGMM_COMMON_SIZECLASS_H_
+#ifndef SRC_GPGMM_COMMON_SIZECLASS_H_
+#define SRC_GPGMM_COMMON_SIZECLASS_H_
 
 #include <array>
 
@@ -65,4 +65,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_SIZECLASS_H_
+#endif  // SRC_GPGMM_COMMON_SIZECLASS_H_
diff --git a/src/gpgmm/common/SlabBlockAllocator.h b/src/gpgmm/common/SlabBlockAllocator.h
index 6dcfae3c..4d8eaa6c 100644
--- a/src/gpgmm/common/SlabBlockAllocator.h
+++ b/src/gpgmm/common/SlabBlockAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_SLABBLOCKALLOCATOR_H_
-#define GPGMM_COMMON_SLABBLOCKALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_SLABBLOCKALLOCATOR_H_
+#define SRC_GPGMM_COMMON_SLABBLOCKALLOCATOR_H_
 
 #include "gpgmm/common/BlockAllocator.h"
 
@@ -70,4 +70,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_SLABBLOCKALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_SLABBLOCKALLOCATOR_H_
diff --git a/src/gpgmm/common/SlabMemoryAllocator.h b/src/gpgmm/common/SlabMemoryAllocator.h
index 00400fc8..d38359a3 100644
--- a/src/gpgmm/common/SlabMemoryAllocator.h
+++ b/src/gpgmm/common/SlabMemoryAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_SLABMEMORYALLOCATOR_H_
-#define GPGMM_COMMON_SLABMEMORYALLOCATOR_H_
+#ifndef SRC_GPGMM_COMMON_SLABMEMORYALLOCATOR_H_
+#define SRC_GPGMM_COMMON_SLABMEMORYALLOCATOR_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 #include "gpgmm/common/MemoryCache.h"
@@ -162,4 +162,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_SLABMEMORYALLOCATOR_H_
+#endif  // SRC_GPGMM_COMMON_SLABMEMORYALLOCATOR_H_
diff --git a/src/gpgmm/common/ThreadPool.h b/src/gpgmm/common/ThreadPool.h
index da735a26..253b0b9e 100644
--- a/src/gpgmm/common/ThreadPool.h
+++ b/src/gpgmm/common/ThreadPool.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_THREADPOOL_H_
-#define GPGMM_COMMON_THREADPOOL_H_
+#ifndef SRC_GPGMM_COMMON_THREADPOOL_H_
+#define SRC_GPGMM_COMMON_THREADPOOL_H_
 
 #include "gpgmm/utils/NonCopyable.h"
 
@@ -105,4 +105,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_THREADPOOL_H_
+#endif  // SRC_GPGMM_COMMON_THREADPOOL_H_
diff --git a/src/gpgmm/common/TraceEvent.h b/src/gpgmm/common/TraceEvent.h
index cb130665..535361a9 100644
--- a/src/gpgmm/common/TraceEvent.h
+++ b/src/gpgmm/common/TraceEvent.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_TRACEEVENT_H_
-#define GPGMM_COMMON_TRACEEVENT_H_
+#ifndef SRC_GPGMM_COMMON_TRACEEVENT_H_
+#define SRC_GPGMM_COMMON_TRACEEVENT_H_
 
 #include "gpgmm/common/JSONSerializer.h"
 #include "gpgmm/common/TraceEventPhase.h"
@@ -254,4 +254,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_COMMON_TRACEEVENT_H_
+#endif  // SRC_GPGMM_COMMON_TRACEEVENT_H_
diff --git a/src/gpgmm/common/TraceEventPhase.h b/src/gpgmm/common/TraceEventPhase.h
index 3cdc48a7..86f02e3c 100644
--- a/src/gpgmm/common/TraceEventPhase.h
+++ b/src/gpgmm/common/TraceEventPhase.h
@@ -12,7 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_COMMON_TRACEEVENTPHASE_H_
+#ifndef SRC_GPGMM_COMMON_TRACEEVENTPHASE_H_
+#define SRC_GPGMM_COMMON_TRACEEVENTPHASE_H_
 
 // Phase indicates the nature of an event entry. E.g. part of a begin/end pair.
 #    define TRACE_EVENT_PHASE_BEGIN ('B')
@@ -24,4 +25,4 @@
 #    define TRACE_EVENT_PHASE_METADATA ('M')
 #    define TRACE_EVENT_PHASE_COUNTER ('C')
 
-#endif  // GPGMM_COMMON_TRACEEVENTPHASE_H_
+#endif  // SRC_GPGMM_COMMON_TRACEEVENTPHASE_H_
diff --git a/src/gpgmm/d3d12/BackendD3D12.h b/src/gpgmm/d3d12/BackendD3D12.h
index 5d7119db..788cb5f5 100644
--- a/src/gpgmm/d3d12/BackendD3D12.h
+++ b/src/gpgmm/d3d12/BackendD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_BACKEND3D12_H_
-#define GPGMM_D3D12_BACKEND3D12_H_
+#ifndef SRC_GPGMM_D3D12_BACKEND3D12_H_
+#define SRC_GPGMM_D3D12_BACKEND3D12_H_
 
 #include "gpgmm/common/Backend.h"
 
diff --git a/src/gpgmm/d3d12/BudgetUpdateD3D12.h b/src/gpgmm/d3d12/BudgetUpdateD3D12.h
index 671c64c3..2ad7e978 100644
--- a/src/gpgmm/d3d12/BudgetUpdateD3D12.h
+++ b/src/gpgmm/d3d12/BudgetUpdateD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_BUDGETUPDATED3D12_H_
-#define GPGMM_D3D12_BUDGETUPDATED3D12_H_
+#ifndef SRC_GPGMM_D3D12_BUDGETUPDATED3D12_H_
+#define SRC_GPGMM_D3D12_BUDGETUPDATED3D12_H_
 
 #include "gpgmm/common/ThreadPool.h"
 #include "gpgmm/d3d12/D3D12Platform.h"
@@ -73,4 +73,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_BUDGETUPDATED3D12_H_
+#endif  // SRC_GPGMM_D3D12_BUDGETUPDATED3D12_H_
diff --git a/src/gpgmm/d3d12/BufferAllocatorD3D12.h b/src/gpgmm/d3d12/BufferAllocatorD3D12.h
index 136076af..2f9966c9 100644
--- a/src/gpgmm/d3d12/BufferAllocatorD3D12.h
+++ b/src/gpgmm/d3d12/BufferAllocatorD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_BUFFERALLOCATORD3D12_H_
-#define GPGMM_D3D12_BUFFERALLOCATORD3D12_H_
+#ifndef SRC_GPGMM_D3D12_BUFFERALLOCATORD3D12_H_
+#define SRC_GPGMM_D3D12_BUFFERALLOCATORD3D12_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 
@@ -48,4 +48,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_BUFFERALLOCATORD3D12_H_
+#endif  // SRC_GPGMM_D3D12_BUFFERALLOCATORD3D12_H_
diff --git a/src/gpgmm/d3d12/CapsD3D12.h b/src/gpgmm/d3d12/CapsD3D12.h
index fe368998..3ca4beb2 100644
--- a/src/gpgmm/d3d12/CapsD3D12.h
+++ b/src/gpgmm/d3d12/CapsD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_CAPSD3D12_H_
-#define GPGMM_D3D12_CAPSD3D12_H_
+#ifndef SRC_GPGMM_D3D12_CAPSD3D12_H_
+#define SRC_GPGMM_D3D12_CAPSD3D12_H_
 
 #include "gpgmm/common/GPUInfo.h"
 #include "gpgmm/d3d12/D3D12Platform.h"
@@ -66,4 +66,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_CAPSD3D12_H_
+#endif  // SRC_GPGMM_D3D12_CAPSD3D12_H_
diff --git a/src/gpgmm/d3d12/D3D12Platform.h b/src/gpgmm/d3d12/D3D12Platform.h
index 386cb749..bc5887ec 100644
--- a/src/gpgmm/d3d12/D3D12Platform.h
+++ b/src/gpgmm/d3d12/D3D12Platform.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_D3D12PLATFORM_H_
-#define GPGMM_D3D12_D3D12PLATFORM_H_
+#ifndef SRC_GPGMM_D3D12_D3D12PLATFORM_H_
+#define SRC_GPGMM_D3D12_D3D12PLATFORM_H_
 
 #include <d3d12.h>
 #include <dxgi1_4.h>
@@ -28,4 +28,4 @@
 
 using Microsoft::WRL::ComPtr;
 
-#endif  // GPGMM_D3D12_D3D12PLATFORM_H_
+#endif  // SRC_GPGMM_D3D12_D3D12PLATFORM_H_
diff --git a/src/gpgmm/d3d12/DebugObjectD3D12.h b/src/gpgmm/d3d12/DebugObjectD3D12.h
index 96d4bfbd..b8d6095b 100644
--- a/src/gpgmm/d3d12/DebugObjectD3D12.h
+++ b/src/gpgmm/d3d12/DebugObjectD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_DEBUGOBJECTD3D12_H_
-#define GPGMM_D3D12_DEBUGOBJECTD3D12_H_
+#ifndef SRC_GPGMM_D3D12_DEBUGOBJECTD3D12_H_
+#define SRC_GPGMM_D3D12_DEBUGOBJECTD3D12_H_
 
 #include "gpgmm/d3d12/UnknownD3D12.h"
 
@@ -41,4 +41,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_DEBUGOBJECTD3D12_H_
+#endif  // SRC_GPGMM_D3D12_DEBUGOBJECTD3D12_H_
diff --git a/src/gpgmm/d3d12/ErrorD3D12.h b/src/gpgmm/d3d12/ErrorD3D12.h
index ed6fcc04..3aec50e6 100644
--- a/src/gpgmm/d3d12/ErrorD3D12.h
+++ b/src/gpgmm/d3d12/ErrorD3D12.h
@@ -11,8 +11,9 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#ifndef GPGMM_D3D12_ERRORD3D12_H_
-#define GPGMM_D3D12_ERRORD3D12_H_
+
+#ifndef SRC_GPGMM_D3D12_ERRORD3D12_H_
+#define SRC_GPGMM_D3D12_ERRORD3D12_H_
 
 #include "gpgmm/common/Error.h"
 #include "gpgmm/d3d12/D3D12Platform.h"
@@ -75,4 +76,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_ERRORD3D12_H_
+#endif  // SRC_GPGMM_D3D12_ERRORD3D12_H_
diff --git a/src/gpgmm/d3d12/FenceD3D12.h b/src/gpgmm/d3d12/FenceD3D12.h
index 1e20f052..cddb3a2a 100644
--- a/src/gpgmm/d3d12/FenceD3D12.h
+++ b/src/gpgmm/d3d12/FenceD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_FENCED3D12_H_
-#define GPGMM_D3D12_FENCED3D12_H_
+#ifndef SRC_GPGMM_D3D12_FENCED3D12_H_
+#define SRC_GPGMM_D3D12_FENCED3D12_H_
 
 #include "gpgmm/d3d12/D3D12Platform.h"
 #include "gpgmm/utils/NonCopyable.h"
@@ -52,4 +52,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_FENCED3D12_H_
+#endif  // SRC_GPGMM_D3D12_FENCED3D12_H_
diff --git a/src/gpgmm/d3d12/JSONSerializerD3D12.h b/src/gpgmm/d3d12/JSONSerializerD3D12.h
index 376600f9..aae41ca8 100644
--- a/src/gpgmm/d3d12/JSONSerializerD3D12.h
+++ b/src/gpgmm/d3d12/JSONSerializerD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_JSONSERIALIZERD3D12_H_
-#define GPGMM_D3D12_JSONSERIALIZERD3D12_H_
+#ifndef SRC_GPGMM_D3D12_JSONSERIALIZERD3D12_H_
+#define SRC_GPGMM_D3D12_JSONSERIALIZERD3D12_H_
 
 #include "gpgmm/common/JSONSerializer.h"
 #include "gpgmm/d3d12/D3D12Platform.h"
@@ -68,4 +68,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_JSONSERIALIZERD3D12_H_
+#endif  // SRC_GPGMM_D3D12_JSONSERIALIZERD3D12_H_
diff --git a/src/gpgmm/d3d12/LogD3D12.h b/src/gpgmm/d3d12/LogD3D12.h
index 3956eaca..126d561f 100644
--- a/src/gpgmm/d3d12/LogD3D12.h
+++ b/src/gpgmm/d3d12/LogD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_LOGD3D12_H_
-#define GPGMM_D3D12_LOGD3D12_H_
+#ifndef SRC_GPGMM_D3D12_LOGD3D12_H_
+#define SRC_GPGMM_D3D12_LOGD3D12_H_
 
 #include "gpgmm/common/EventMessage.h"
 #include "gpgmm/utils/WindowsUtils.h"
@@ -66,4 +66,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_LOGD3D12_H_
+#endif  // SRC_GPGMM_D3D12_LOGD3D12_H_
diff --git a/src/gpgmm/d3d12/ResidencyHeapD3D12.h b/src/gpgmm/d3d12/ResidencyHeapD3D12.h
index 631477f3..8927baea 100644
--- a/src/gpgmm/d3d12/ResidencyHeapD3D12.h
+++ b/src/gpgmm/d3d12/ResidencyHeapD3D12.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_HEAPD3D12_H_
-#define GPGMM_D3D12_HEAPD3D12_H_
+#ifndef SRC_GPGMM_D3D12_RESIDENCYHEAPD3D12_H_
+#define SRC_GPGMM_D3D12_RESIDENCYHEAPD3D12_H_
 
 #include "gpgmm/common/Memory.h"
 #include "gpgmm/d3d12/DebugObjectD3D12.h"
@@ -93,4 +93,4 @@ namespace gpgmm::d3d12 {
     };
 }  // namespace gpgmm::d3d12
 
-#endif
+#endif  // SRC_GPGMM_D3D12_RESIDENCYHEAPD3D12_H_
diff --git a/src/gpgmm/d3d12/ResidencyListD3D12.h b/src/gpgmm/d3d12/ResidencyListD3D12.h
index 1caa5931..ed159624 100644
--- a/src/gpgmm/d3d12/ResidencyListD3D12.h
+++ b/src/gpgmm/d3d12/ResidencyListD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_RESIDENCYLISTD3D12_H_
-#define GPGMM_D3D12_RESIDENCYLISTD3D12_H_
+#ifndef SRC_GPGMM_D3D12_RESIDENCYLISTD3D12_H_
+#define SRC_GPGMM_D3D12_RESIDENCYLISTD3D12_H_
 
 #include "gpgmm/d3d12/D3D12Platform.h"
 #include "gpgmm/d3d12/UnknownD3D12.h"
@@ -54,4 +54,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif
+#endif  // SRC_GPGMM_D3D12_RESIDENCYLISTD3D12_H_
diff --git a/src/gpgmm/d3d12/ResidencyManagerD3D12.h b/src/gpgmm/d3d12/ResidencyManagerD3D12.h
index a069f811..64777931 100644
--- a/src/gpgmm/d3d12/ResidencyManagerD3D12.h
+++ b/src/gpgmm/d3d12/ResidencyManagerD3D12.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_RESIDENCYMANAGERD3D12_H_
-#define GPGMM_D3D12_RESIDENCYMANAGERD3D12_H_
+#ifndef SRC_GPGMM_D3D12_RESIDENCYMANAGERD3D12_H_
+#define SRC_GPGMM_D3D12_RESIDENCYMANAGERD3D12_H_
 
 #include "gpgmm/common/Object.h"
 #include "gpgmm/d3d12/DebugObjectD3D12.h"
@@ -155,4 +155,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_RESIDENCYMANAGERD3D12_H_
+#endif  // SRC_GPGMM_D3D12_RESIDENCYMANAGERD3D12_H_
diff --git a/src/gpgmm/d3d12/ResourceAllocationD3D12.h b/src/gpgmm/d3d12/ResourceAllocationD3D12.h
index 18b53a32..d9c30317 100644
--- a/src/gpgmm/d3d12/ResourceAllocationD3D12.h
+++ b/src/gpgmm/d3d12/ResourceAllocationD3D12.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_RESOURCEALLOCATIOND3D12_H_
-#define GPGMM_D3D12_RESOURCEALLOCATIOND3D12_H_
+#ifndef SRC_GPGMM_D3D12_RESOURCEALLOCATIOND3D12_H_
+#define SRC_GPGMM_D3D12_RESOURCEALLOCATIOND3D12_H_
 
 #include "gpgmm/common/MemoryAllocation.h"
 #include "gpgmm/d3d12/DebugObjectD3D12.h"
@@ -86,4 +86,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_RESOURCEALLOCATIOND3D12_H_
+#endif  // SRC_GPGMM_D3D12_RESOURCEALLOCATIOND3D12_H_
diff --git a/src/gpgmm/d3d12/ResourceAllocationTrackingAllocatorD3D12.h b/src/gpgmm/d3d12/ResourceAllocationTrackingAllocatorD3D12.h
index f69b8154..2616b4be 100644
--- a/src/gpgmm/d3d12/ResourceAllocationTrackingAllocatorD3D12.h
+++ b/src/gpgmm/d3d12/ResourceAllocationTrackingAllocatorD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_RESOURCEALLOCATIONTRACKINGALLOCATORD3D12_H_
-#define GPGMM_D3D12_RESOURCEALLOCATIONTRACKINGALLOCATORD3D12_H_
+#ifndef SRC_GPGMM_D3D12_RESOURCEALLOCATIONTRACKINGALLOCATORD3D12_H_
+#define SRC_GPGMM_D3D12_RESOURCEALLOCATIONTRACKINGALLOCATORD3D12_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 #include "gpgmm/common/MemoryCache.h"
@@ -58,4 +58,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_RESOURCEALLOCATIONTRACKINGALLOCATORD3D12_H_
+#endif  // SRC_GPGMM_D3D12_RESOURCEALLOCATIONTRACKINGALLOCATORD3D12_H_
diff --git a/src/gpgmm/d3d12/ResourceAllocatorD3D12.h b/src/gpgmm/d3d12/ResourceAllocatorD3D12.h
index f2350139..85a51113 100644
--- a/src/gpgmm/d3d12/ResourceAllocatorD3D12.h
+++ b/src/gpgmm/d3d12/ResourceAllocatorD3D12.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_RESOURCEALLOCATORD3D12_H_
-#define GPGMM_D3D12_RESOURCEALLOCATORD3D12_H_
+#ifndef SRC_GPGMM_D3D12_RESOURCEALLOCATORD3D12_H_
+#define SRC_GPGMM_D3D12_RESOURCEALLOCATORD3D12_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 #include "gpgmm/d3d12/DebugObjectD3D12.h"
@@ -184,4 +184,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_RESOURCEALLOCATORD3D12_H_
+#endif  // SRC_GPGMM_D3D12_RESOURCEALLOCATORD3D12_H_
diff --git a/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.h b/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.h
index 0f517a92..53c4dfd2 100644
--- a/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.h
+++ b/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_RESOURCEHEAPALLOCATORD3D12_H_
-#define GPGMM_D3D12_RESOURCEHEAPALLOCATORD3D12_H_
+#ifndef SRC_GPGMM_D3D12_RESOURCEHEAPALLOCATORD3D12_H_
+#define SRC_GPGMM_D3D12_RESOURCEHEAPALLOCATORD3D12_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 #include "gpgmm/d3d12/D3D12Platform.h"
@@ -63,4 +63,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_RESOURCEHEAPALLOCATORD3D12_H_
+#endif  // SRC_GPGMM_D3D12_RESOURCEHEAPALLOCATORD3D12_H_
diff --git a/src/gpgmm/d3d12/ResourceSizeD3D12.h b/src/gpgmm/d3d12/ResourceSizeD3D12.h
index 6c5296c2..eaf91e71 100644
--- a/src/gpgmm/d3d12/ResourceSizeD3D12.h
+++ b/src/gpgmm/d3d12/ResourceSizeD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_RESOURCESIZE_H_
-#define GPGMM_D3D12_RESOURCESIZE_H_
+#ifndef SRC_GPGMM_D3D12_RESOURCESIZE_H_
+#define SRC_GPGMM_D3D12_RESOURCESIZE_H_
 
 #include "gpgmm/common/SizeClass.h"
 #include "gpgmm/d3d12/D3D12Platform.h"
@@ -48,4 +48,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_RESOURCESIZE_H_
+#endif  // SRC_GPGMM_D3D12_RESOURCESIZE_H_
diff --git a/src/gpgmm/d3d12/UnknownD3D12.h b/src/gpgmm/d3d12/UnknownD3D12.h
index ab9afea6..70bf17fe 100644
--- a/src/gpgmm/d3d12/UnknownD3D12.h
+++ b/src/gpgmm/d3d12/UnknownD3D12.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_D3D12_UNKNOWND3D12_H_
-#define GPGMM_D3D12_UNKNOWND3D12_H_
+#ifndef SRC_GPGMM_D3D12_UNKNOWND3D12_H_
+#define SRC_GPGMM_D3D12_UNKNOWND3D12_H_
 
 #include "gpgmm/d3d12/D3D12Platform.h"
 #include "gpgmm/utils/NonCopyable.h"
@@ -57,4 +57,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_UNKNOWND3D12_H_
+#endif  // SRC_GPGMM_D3D12_UNKNOWND3D12_H_
diff --git a/src/gpgmm/d3d12/UtilsD3D12.h b/src/gpgmm/d3d12/UtilsD3D12.h
index 8da6972c..18730b36 100644
--- a/src/gpgmm/d3d12/UtilsD3D12.h
+++ b/src/gpgmm/d3d12/UtilsD3D12.h
@@ -11,8 +11,8 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#ifndef GPGMM_D3D12_UTILSD3D12_H_
-#define GPGMM_D3D12_UTILSD3D12_H_
+#ifndef SRC_GPGMM_D3D12_UTILSD3D12_H_
+#define SRC_GPGMM_D3D12_UTILSD3D12_H_
 
 #include "gpgmm/d3d12/D3D12Platform.h"
 
@@ -33,4 +33,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // GPGMM_D3D12_UTILSD3D12_H_
+#endif  // SRC_GPGMM_D3D12_UTILSD3D12_H_
diff --git a/src/gpgmm/utils/Assert.h b/src/gpgmm/utils/Assert.h
index 3621d474..2c55e2b1 100644
--- a/src/gpgmm/utils/Assert.h
+++ b/src/gpgmm/utils/Assert.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_ASSERT_H_
-#define GPGMM_UTILS_ASSERT_H_
+#ifndef SRC_GPGMM_UTILS_ASSERT_H_
+#define SRC_GPGMM_UTILS_ASSERT_H_
 
 #include "Compiler.h"
 
@@ -105,4 +105,4 @@ namespace gpgmm {
 
 }
 
-#endif  // GPGMM_UTILS_ASSERT_H_
+#endif  // SRC_GPGMM_UTILS_ASSERT_H_
diff --git a/src/gpgmm/utils/Compiler.h b/src/gpgmm/utils/Compiler.h
index e922cac7..d797240d 100644
--- a/src/gpgmm/utils/Compiler.h
+++ b/src/gpgmm/utils/Compiler.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_COMPILER_H_
-#define GPGMM_UTILS_COMPILER_H_
+#ifndef SRC_GPGMM_UTILS_COMPILER_H_
+#define SRC_GPGMM_UTILS_COMPILER_H_
 
 // Defines macros for compiler-specific functionality
 //  - GPGMM_COMPILER_[CLANG|GCC|MSVC]: Compiler detection
@@ -113,4 +113,4 @@ extern void __cdecl __debugbreak(void);
 #    define GPGMM_FALLTHROUGH
 #endif
 
-#endif  // GPGMM_UTILS_COMPILER_H_
+#endif  // SRC_GPGMM_UTILS_COMPILER_H_
diff --git a/src/gpgmm/utils/EnumFlags.h b/src/gpgmm/utils/EnumFlags.h
index d1145820..7302ddb6 100644
--- a/src/gpgmm/utils/EnumFlags.h
+++ b/src/gpgmm/utils/EnumFlags.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_ENUMFLAGS_H_
-#define GPGMM_UTILS_ENUMFLAGS_H_
+#ifndef SRC_GPGMM_UTILS_ENUMFLAGS_H_
+#define SRC_GPGMM_UTILS_ENUMFLAGS_H_
 
 #include <cstdint>
 
@@ -90,4 +90,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_ENUMFLAGS_H_
+#endif  // SRC_GPGMM_UTILS_ENUMFLAGS_H_
diff --git a/src/gpgmm/utils/JSONEncoder.h b/src/gpgmm/utils/JSONEncoder.h
index 7479e9ea..a3a959d8 100644
--- a/src/gpgmm/utils/JSONEncoder.h
+++ b/src/gpgmm/utils/JSONEncoder.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_JSON_ENCODER_H_
-#define GPGMM_UTILS_JSON_ENCODER_H_
+#ifndef SRC_GPGMM_UTILS_JSONENCODER_H_
+#define SRC_GPGMM_UTILS_JSONENCODER_H_
 
 #include <sstream>
 #include <string>
@@ -82,4 +82,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_JSON_ENCODER_H_
+#endif  // SRC_GPGMM_UTILS_JSON_ENCODER_H_
diff --git a/src/gpgmm/utils/Limits.h b/src/gpgmm/utils/Limits.h
index e0ecf6d3..c83f98ba 100644
--- a/src/gpgmm/utils/Limits.h
+++ b/src/gpgmm/utils/Limits.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_LIMITS_H_
-#define GPGMM_UTILS_LIMITS_H_
+#ifndef SRC_GPGMM_UTILS_LIMITS_H_
+#define SRC_GPGMM_UTILS_LIMITS_H_
 
 #include <climits>  // CHAR_BIT
 #include <cstdint>
@@ -34,4 +34,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_LIMITS_H_
+#endif  // SRC_GPGMM_UTILS_LIMITS_H_
diff --git a/src/gpgmm/utils/LinkedList.h b/src/gpgmm/utils/LinkedList.h
index c5e9b19c..cb55d4c1 100644
--- a/src/gpgmm/utils/LinkedList.h
+++ b/src/gpgmm/utils/LinkedList.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_LINKED_LIST_H
-#define GPGMM_UTILS_LINKED_LIST_H
+#ifndef SRC_GPGMM_UTILS_LINKED_LIST_H
+#define SRC_GPGMM_UTILS_LINKED_LIST_H
 
 #include "Assert.h"
 #include "Utils.h"
@@ -316,4 +316,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_LINKED_LIST_H
+#endif  // SRC_GPGMM_UTILS_LINKED_LIST_H
diff --git a/src/gpgmm/utils/Log.h b/src/gpgmm/utils/Log.h
index db303433..78dc7965 100644
--- a/src/gpgmm/utils/Log.h
+++ b/src/gpgmm/utils/Log.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_LOG_H_
-#define GPGMM_UTILS_LOG_H_
+#ifndef SRC_GPGMM_UTILS_LOG_H_
+#define SRC_GPGMM_UTILS_LOG_H_
 
 // Targets shouldn't use iostream or printf directly for several reasons:
 //  - iostream adds static initializers which we want to avoid.
@@ -133,4 +133,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_LOG_H_
+#endif  // SRC_GPGMM_UTILS_LOG_H_
diff --git a/src/gpgmm/utils/Math.h b/src/gpgmm/utils/Math.h
index a1d92c64..14681ba3 100644
--- a/src/gpgmm/utils/Math.h
+++ b/src/gpgmm/utils/Math.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_MATH_H_
-#define GPGMM_UTILS_MATH_H_
+#ifndef SRC_GPGMM_UTILS_MATH_H_
+#define SRC_GPGMM_UTILS_MATH_H_
 
 #include "Assert.h"
 
@@ -61,4 +61,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_MATH_H_
+#endif  // SRC_GPGMM_UTILS_MATH_H_
diff --git a/src/gpgmm/utils/NonCopyable.h b/src/gpgmm/utils/NonCopyable.h
index 27153b28..c18b9981 100644
--- a/src/gpgmm/utils/NonCopyable.h
+++ b/src/gpgmm/utils/NonCopyable.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_NONCOPYABLE_H_
-#define GPGMM_UTILS_NONCOPYABLE_H_
+#ifndef SRC_GPGMM_UTILS_NONCOPYABLE_H_
+#define SRC_GPGMM_UTILS_NONCOPYABLE_H_
 
 namespace gpgmm {
 
@@ -34,4 +34,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_NONCOPYABLE_H_
+#endif  // SRC_GPGMM_UTILS_NONCOPYABLE_H_
diff --git a/src/gpgmm/utils/Platform.h b/src/gpgmm/utils/Platform.h
index e8d592fb..797ce366 100644
--- a/src/gpgmm/utils/Platform.h
+++ b/src/gpgmm/utils/Platform.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_PLATFORM_H_
-#define GPGMM_UTILS_PLATFORM_H_
+#ifndef SRC_GPGMM_UTILS_PLATFORM_H_
+#define SRC_GPGMM_UTILS_PLATFORM_H_
 
 // Per operating system.
 
@@ -90,4 +90,4 @@ static_assert(sizeof(sizeof(char)) == 4, "Expect sizeof(size_t) == 4");
 #    error "Unsupported platform"
 #endif
 
-#endif  // GPGMM_UTILS_PLATFORM_H_
+#endif  // SRC_GPGMM_UTILS_PLATFORM_H_
diff --git a/src/gpgmm/utils/PlatformDebug.h b/src/gpgmm/utils/PlatformDebug.h
index 9faa8427..695a891d 100644
--- a/src/gpgmm/utils/PlatformDebug.h
+++ b/src/gpgmm/utils/PlatformDebug.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_PLATFORMDEBUG_H_
-#define GPGMM_UTILS_PLATFORMDEBUG_H_
+#ifndef SRC_GPGMM_UTILS_PLATFORMDEBUG_H_
+#define SRC_GPGMM_UTILS_PLATFORMDEBUG_H_
 
 #include "Log.h"
 
@@ -42,4 +42,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_PLATFORMDEBUG_H_
+#endif  // SRC_GPGMM_UTILS_PLATFORMDEBUG_H_
diff --git a/src/gpgmm/utils/PlatformTime.h b/src/gpgmm/utils/PlatformTime.h
index 21ebb352..2229eb68 100644
--- a/src/gpgmm/utils/PlatformTime.h
+++ b/src/gpgmm/utils/PlatformTime.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_PLATFORMTIME_H_
-#define GPGMM_UTILS_PLATFORMTIME_H_
+#ifndef SRC_GPGMM_UTILS_PLATFORMTIME_H_
+#define SRC_GPGMM_UTILS_PLATFORMTIME_H_
 
 namespace gpgmm {
 
@@ -39,4 +39,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_PLATFORMTIME_H_
+#endif  // SRC_GPGMM_UTILS_PLATFORMTIME_H_
diff --git a/src/gpgmm/utils/PlatformUtils.h b/src/gpgmm/utils/PlatformUtils.h
index c0d85f4a..b90c11ce 100644
--- a/src/gpgmm/utils/PlatformUtils.h
+++ b/src/gpgmm/utils/PlatformUtils.h
@@ -13,8 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_PLATFORMUTILS_H_
-#define GPGMM_UTILS_PLATFORMUTILS_H_
+#ifndef SRC_GPGMM_UTILS_PLATFORMUTILS_H_
+#define SRC_GPGMM_UTILS_PLATFORMUTILS_H_
 
 #include "Platform.h"
 
@@ -31,4 +31,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_PLATFORMUTILS_H_
+#endif  // SRC_GPGMM_UTILS_PLATFORMUTILS_H_
diff --git a/src/gpgmm/utils/RefCount.h b/src/gpgmm/utils/RefCount.h
index 55857331..c60b61d2 100644
--- a/src/gpgmm/utils/RefCount.h
+++ b/src/gpgmm/utils/RefCount.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_REFCOUNT_H_
-#define GPGMM_UTILS_REFCOUNT_H_
+#ifndef SRC_GPGMM_UTILS_REFCOUNT_H_
+#define SRC_GPGMM_UTILS_REFCOUNT_H_
 
 #include "Utils.h"
 
@@ -147,4 +147,4 @@ namespace gpgmm {
     };
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_REFCOUNT_H_
+#endif  // SRC_GPGMM_UTILS_REFCOUNT_H_
diff --git a/src/gpgmm/utils/StableList.h b/src/gpgmm/utils/StableList.h
index 485a791b..770c415f 100644
--- a/src/gpgmm/utils/StableList.h
+++ b/src/gpgmm/utils/StableList.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_STABLELIST_H_
-#define GPGMM_UTILS_STABLELIST_H_
+#ifndef SRC_GPGMM_UTILS_STABLELIST_H_
+#define SRC_GPGMM_UTILS_STABLELIST_H_
 
 #include "Assert.h"
 #include "Compiler.h"
@@ -431,4 +431,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_STABLELIST_H_
+#endif  // SRC_GPGMM_UTILS_STABLELIST_H_
diff --git a/src/gpgmm/utils/Utils.h b/src/gpgmm/utils/Utils.h
index 258d43b6..2d2bc3ae 100644
--- a/src/gpgmm/utils/Utils.h
+++ b/src/gpgmm/utils/Utils.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_UTILS_H_
-#define GPGMM_UTILS_UTILS_H_
+#ifndef SRC_GPGMM_UTILS_UTILS_H_
+#define SRC_GPGMM_UTILS_UTILS_H_
 
 #include <sstream>
 #include <string>
@@ -85,4 +85,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_UTILS_H_
+#endif  // SRC_GPGMM_UTILS_UTILS_H_
diff --git a/src/gpgmm/utils/WindowsUtils.h b/src/gpgmm/utils/WindowsUtils.h
index 0c3af38f..f15e27bc 100644
--- a/src/gpgmm/utils/WindowsUtils.h
+++ b/src/gpgmm/utils/WindowsUtils.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_UTILS_WINDOWSUTILS_H
-#define GPGMM_UTILS_WINDOWSUTILS_H
+#ifndef SRC_GPGMM_UTILS_WINDOWSUTILS_H
+#define SRC_GPGMM_UTILS_WINDOWSUTILS_H
 
 #include <string>
 namespace gpgmm {
@@ -25,4 +25,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // GPGMM_UTILS_WINDOWSUTILS_H
+#endif  // SRC_GPGMM_UTILS_WINDOWSUTILS_H
diff --git a/src/gpgmm/vk/BackendVk.h b/src/gpgmm/vk/BackendVk.h
index c71d3beb..2eb674ad 100644
--- a/src/gpgmm/vk/BackendVk.h
+++ b/src/gpgmm/vk/BackendVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_VK_BACKENDVK_H_
-#define GPGMM_VK_BACKENDVK_H_
+#ifndef SRC_GPGMM_VK_BACKENDVK_H_
+#define SRC_GPGMM_VK_BACKENDVK_H_
 
 #include "gpgmm/common/Backend.h"
 
@@ -32,4 +32,4 @@ namespace gpgmm::vk {
 
 }  // namespace gpgmm::vk
 
-#endif  // GPGMM_VK_BACKENDVK_H_
+#endif  // SRC_GPGMM_VK_BACKENDVK_H_
diff --git a/src/gpgmm/vk/CapsVk.h b/src/gpgmm/vk/CapsVk.h
index 6b240688..e3e88ff4 100644
--- a/src/gpgmm/vk/CapsVk.h
+++ b/src/gpgmm/vk/CapsVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_VK_CAPSVK_H_
-#define GPGMM_VK_CAPSVK_H_
+#ifndef SRC_GPGMM_VK_CAPSVK_H_
+#define SRC_GPGMM_VK_CAPSVK_H_
 
 #include "gpgmm/vk/VKPlatform.h"
 
@@ -42,4 +42,4 @@ namespace gpgmm::vk {
 
 }  // namespace gpgmm::vk
 
-#endif  // GPGMM_VK_CAPSVK_H_
+#endif  // SRC_GPGMM_VK_CAPSVK_H_
diff --git a/src/gpgmm/vk/DeviceMemoryAllocatorVk.h b/src/gpgmm/vk/DeviceMemoryAllocatorVk.h
index ed06f7ae..e8aa7091 100644
--- a/src/gpgmm/vk/DeviceMemoryAllocatorVk.h
+++ b/src/gpgmm/vk/DeviceMemoryAllocatorVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_VK_DEVICEMEMORYALLOCATORVK_H_
-#define GPGMM_VK_DEVICEMEMORYALLOCATORVK_H_
+#ifndef SRC_GPGMM_VK_DEVICEMEMORYALLOCATORVK_H_
+#define SRC_GPGMM_VK_DEVICEMEMORYALLOCATORVK_H_
 
 #include "gpgmm/vk/ResourceAllocatorVk.h"
 
@@ -35,4 +35,4 @@ namespace gpgmm::vk {
 
 }  // namespace gpgmm::vk
 
-#endif  // GPGMM_VK_DEVICEMEMORYALLOCATORVK_H_
+#endif  // SRC_GPGMM_VK_DEVICEMEMORYALLOCATORVK_H_
diff --git a/src/gpgmm/vk/DeviceMemoryVk.h b/src/gpgmm/vk/DeviceMemoryVk.h
index d7ac0c40..87a7f73f 100644
--- a/src/gpgmm/vk/DeviceMemoryVk.h
+++ b/src/gpgmm/vk/DeviceMemoryVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_VK_DEVICEMEMORYVK_H_
-#define GPGMM_VK_DEVICEMEMORYVK_H_
+#ifndef SRC_GPGMM_VK_DEVICEMEMORYVK_H_
+#define SRC_GPGMM_VK_DEVICEMEMORYVK_H_
 
 #include "gpgmm/common/Memory.h"
 
@@ -39,4 +39,4 @@ namespace gpgmm::vk {
 
 }  // namespace gpgmm::vk
 
-#endif  // GPGMM_VK_DEVICEMEMORYVK_H_
+#endif  // SRC_GPGMM_VK_DEVICEMEMORYVK_H_
diff --git a/src/gpgmm/vk/ErrorVk.h b/src/gpgmm/vk/ErrorVk.h
index b3834ac9..3391ca9c 100644
--- a/src/gpgmm/vk/ErrorVk.h
+++ b/src/gpgmm/vk/ErrorVk.h
@@ -11,8 +11,8 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#ifndef GPGMM_VK_ERRORVK_H_
-#define GPGMM_VK_ERRORVK_H_
+#ifndef SRC_GPGMM_VK_ERRORVK_H_
+#define SRC_GPGMM_VK_ERRORVK_H_
 
 #include "gpgmm/common/Error.h"
 #include "gpgmm/vk/VKPlatform.h"
@@ -54,4 +54,4 @@ namespace gpgmm::vk {
 
 }  // namespace gpgmm::vk
 
-#endif  // GPGMM_VK_ERRORVK_H_
+#endif  // SRC_GPGMM_VK_ERRORVK_H_
diff --git a/src/gpgmm/vk/ResourceAllocatorVk.h b/src/gpgmm/vk/ResourceAllocatorVk.h
index b7b34c5b..4ed54368 100644
--- a/src/gpgmm/vk/ResourceAllocatorVk.h
+++ b/src/gpgmm/vk/ResourceAllocatorVk.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_VK_RESOURCEALLOCATORVK_H_
-#define GPGMM_VK_RESOURCEALLOCATORVK_H_
+#ifndef SRC_GPGMM_VK_RESOURCEALLOCATORVK_H_
+#define SRC_GPGMM_VK_RESOURCEALLOCATORVK_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 #include "gpgmm/vk/FunctionsVk.h"
@@ -78,4 +78,4 @@ namespace gpgmm::vk {
 
 }  // namespace gpgmm::vk
 
-#endif  // GPGMM_VK_RESOURCEALLOCATORVK_H_
+#endif  // SRC_GPGMM_VK_RESOURCEALLOCATORVK_H_
diff --git a/src/gpgmm/vk/VkPlatform.h b/src/gpgmm/vk/VkPlatform.h
index 6993508d..a9b733db 100644
--- a/src/gpgmm/vk/VkPlatform.h
+++ b/src/gpgmm/vk/VkPlatform.h
@@ -12,9 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef GPGMM_VK_VKPlatform_H_
-#define GPGMM_VK_VKPlatform_H_
+#ifndef SRC_GPGMM_VK_VKPLATFORM_H_
+#define SRC_GPGMM_VK_VKPLATFORM_H_
 
 #include <vulkan/vulkan.h>
 
-#endif  // GPGMM_VK_VKPlatform_H_
+#endif  // SRC_GPGMM_VK_VKPLATFORM_H_
diff --git a/src/tests/D3D12Test.h b/src/tests/D3D12Test.h
index f3ed72c0..e2e35150 100644
--- a/src/tests/D3D12Test.h
+++ b/src/tests/D3D12Test.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef TESTS_D3D12TEST_H_
-#define TESTS_D3D12TEST_H_
+#ifndef SRC_TESTS_D3D12TEST_H_
+#define SRC_TESTS_D3D12TEST_H_
 
 #include "tests/GPGMMTest.h"
 
@@ -74,4 +74,4 @@ namespace gpgmm::d3d12 {
 
 }  // namespace gpgmm::d3d12
 
-#endif  // TESTS_D3D12TEST_H_
+#endif  // SRC_TESTS_D3D12TEST_H_
diff --git a/src/tests/DummyMemoryAllocator.h b/src/tests/DummyMemoryAllocator.h
index 425c7573..74f5cb44 100644
--- a/src/tests/DummyMemoryAllocator.h
+++ b/src/tests/DummyMemoryAllocator.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef TESTS_DUMMYMEMORYALLOCATOR_H_
-#define TESTS_DUMMYMEMORYALLOCATOR_H_
+#ifndef SRC_TESTS_DUMMYMEMORYALLOCATOR_H_
+#define SRC_TESTS_DUMMYMEMORYALLOCATOR_H_
 
 #include "gpgmm/common/MemoryAllocator.h"
 #include "gpgmm/common/TraceEvent.h"
@@ -68,4 +68,4 @@ namespace gpgmm {
 
 }  // namespace gpgmm
 
-#endif  // TESTS_DUMMYMEMORYALLOCATOR_H_
+#endif  // SRC_TESTS_DUMMYMEMORYALLOCATOR_H_
diff --git a/src/tests/GPGMMTest.h b/src/tests/GPGMMTest.h
index ac8f556a..a681f713 100644
--- a/src/tests/GPGMMTest.h
+++ b/src/tests/GPGMMTest.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef TESTS_GPGMMTEST_H_
-#define TESTS_GPGMMTEST_H_
+#ifndef SRC_TESTS_GPGMMTEST_H_
+#define SRC_TESTS_GPGMMTEST_H_
 
 #include <gtest/gtest.h>
 
@@ -90,4 +90,4 @@ class GPGMMTestEnvironment : public testing::Environment {
     gpgmm::MessageSeverity mLogLevel;  // Initialized by Setup().
 };
 
-#endif  // TESTS_GPGMMTEST_H_
+#endif  // SRC_TESTS_GPGMMTEST_H_
diff --git a/src/tests/VKTest.h b/src/tests/VKTest.h
index d991f792..88409579 100644
--- a/src/tests/VKTest.h
+++ b/src/tests/VKTest.h
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef TESTS_VKTEST_H_
-#define TESTS_VKTEST_H_
+#ifndef SRC_TESTS_VKTEST_H_
+#define SRC_TESTS_VKTEST_H_
 
 #include "tests/GPGMMTest.h"
 
@@ -44,4 +44,4 @@ namespace gpgmm::vk {
 
 }  // namespace gpgmm::vk
 
-#endif  // TESTS_VKTEST_H_
+#endif  // SRC_TESTS_VKTEST_H_