diff --git a/components/bt/common/ble_log/extension/log_compression/CMakeLists.txt b/components/bt/common/ble_log/extension/log_compression/CMakeLists.txt
index cc5962dbcce..f7c6164e851 100644
--- a/components/bt/common/ble_log/extension/log_compression/CMakeLists.txt
+++ b/components/bt/common/ble_log/extension/log_compression/CMakeLists.txt
@@ -65,7 +65,15 @@ if(CONFIG_BLE_HOST_COMPRESSED_LOG_ENABLE AND CONFIG_BT_BLUEDROID_ENABLED)
     list(APPEND LOG_COMPRESSED_MODULE "BLE_HOST")
 
     # update config file
-    set(HOST_CODE_PATH "host/bluedroid")
+    # BTC and OSI are shared at the source-tree level, but their TRACE macros
+    # and runtime log-level controls belong to Bluedroid. Keep them in the
+    # same compression module so they share host_log_index.h and follow the
+    # Bluedroid host-compression switch.
+    set(HOST_CODE_PATH
+        "host/bluedroid"
+        "common/btc"
+        "common/osi"
+    )
     set(HOST_LOG_INDEX_HEADER "host_log_index.h")
     set(BLE_HOST_LOG_SCRIPT_PATH
         "${CMAKE_CURRENT_LIST_DIR}/scripts/module_scripts/bluedroid/make_bluedroid_log_macro.py")
@@ -158,9 +166,10 @@ if(LOG_COMPRESSED_MODULE)
         endif()
         set(YML_IN  "${BT_ROOT_PATH}/common/ble_log/extension/log_compression/scripts/configs/module_info.yml.in")
 
-        # BLE_ISO has multiple code paths; rewrite CMake list ";" → YAML ", "
-        # into a sibling variable so BLE_ISO_CODE_PATH itself stays a CMake
-        # list usable by any later code that wants to iterate or append.
+        # Modules may have multiple code paths; rewrite CMake lists ";" →
+        # YAML ", " into sibling variables so the originals remain CMake
+        # lists usable by any later code that wants to iterate or append.
+        string(REPLACE ";" ", " HOST_CODE_PATH_YAML "${HOST_CODE_PATH}")
         string(REPLACE ";" ", " BLE_ISO_CODE_PATH_YAML "${BLE_ISO_CODE_PATH}")
 
         configure_file(${YML_IN} ${CONFIG_FILE_PATH} @ONLY)
diff --git a/components/bt/common/ble_log/extension/log_compression/scripts/configs/module_info.yml.in b/components/bt/common/ble_log/extension/log_compression/scripts/configs/module_info.yml.in
index 9d92d65bde2..a12faa45f3f 100644
--- a/components/bt/common/ble_log/extension/log_compression/scripts/configs/module_info.yml.in
+++ b/components/bt/common/ble_log/extension/log_compression/scripts/configs/module_info.yml.in
@@ -12,7 +12,7 @@ log_config:
 
     BLE_HOST:
       description: "BLE Host"
-      code_path: [@HOST_CODE_PATH@]
+      code_path: [@HOST_CODE_PATH_YAML@]
       log_index_file: @HOST_LOG_INDEX_HEADER@
       script: @BLE_HOST_LOG_SCRIPT_PATH@
       tags: [@BLE_HOST_TAGS@]
diff --git a/components/bt/common/include/bt_common.h b/components/bt/common/include/bt_common.h
index 343600f36e6..c266faf653e 100644
--- a/components/bt/common/include/bt_common.h
+++ b/components/bt/common/include/bt_common.h
@@ -288,4 +288,13 @@ typedef UINT8 BD_ADDR[BD_ADDR_LEN];         /* Device address */
 void bt_hci_log_record_insights(uint8_t data_type, const uint8_t *data, uint16_t data_len);
 #endif
 
+#if CONFIG_BT_BLUEDROID_ENABLED && CONFIG_BLE_HOST_COMPRESSED_LOG_ENABLE
+/*
+ * The generated Bluedroid index also owns the BTC/OSI/BLUFI TRACE macros
+ * declared by this header, including those used from common/btc and
+ * common/osi sources.
+ */
+#include "host_log_index.h"
+#endif
+
 #endif /* _BT_COMMON_H_ */
diff --git a/components/bt/host/bluedroid/common/include/common/bt_trace.h b/components/bt/host/bluedroid/common/include/common/bt_trace.h
index 85ddbe58d46..b4dc1b63645 100644
--- a/components/bt/host/bluedroid/common/include/common/bt_trace.h
+++ b/components/bt/host/bluedroid/common/include/common/bt_trace.h
@@ -24,9 +24,6 @@
 #include "bluedroid_user_config.h"
 #include "stack/bt_types.h"
 #include "bt_common.h"
-#if CONFIG_BLE_HOST_COMPRESSED_LOG_ENABLE
-#include "host_log_index.h"
-#endif
 
 #if (BT_BLE_LOG_SPI_OUT_HOST_ENABLED && !CLASSIC_BT_INCLUDED)
 #include "ble_log/ble_log_spi_out.h"