Fix hexagon compilation

CMakeLists.txt

@@ -167,10 +167,12 @@ include_directories(
 
 set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--export-dynamic")
 
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/empty.c" "")
+
 if (${CONFIG_SPF_AS_STATIC_LIB} MATCHES "y")
    add_library(spf STATIC "" )
 else()
-   add_library(spf SHARED "" )
+   add_library(spf SHARED "${CMAKE_CURRENT_BINARY_DIR}/empty.c" )
 endif()
 
 message (STATUS "Generating AMDB configs")

arch/hexagon/configs/defconfig

@@ -0,0 +1,25 @@
+# Generated by Kconfiglib (https://github.com/ulfalizer/Kconfiglib)
+CONFIG_ARCH_HEXAGON=y
+CONFIG_HEXAGON_TOOLS_ROOT="/pkg/qct/software/hexagon/releases/tools/8.6.01"
+CONFIG_HEXAGON_SDK_ROOT="/pkg/qct/software/hexagon/hexagonsdk/4.5.0"
+CONFIG_DISABLE_PLATFORM=y
+# CONFIG_COMPILE_POSAL is not set
+CONFIG_PROC_DOMAIN="ADSP"
+#
+# Modules
+#
+CONFIG_MODULES=y
+CONFIG_MODULES_DEBUG=n
+CONFIG_ENCODER=n
+CONFIG_ECHO_CANCELLATION=n
+CONFIG_EXAMPLE_GAIN=n
+
+#
+# Signal Processing Framework
+#
+# CONFIG_SPF_AS_STATIC_LIB is not set
+# CONFIG_SPF_DEBUG is not set
+
+#
+# Signal Processing Framework Modules
+#

modules/cmn/common/utils/inc/audio_iir_tdf2_asm.h

@@ -0,0 +1,19 @@
+/*========================================================================*/
+/**
+@file audio_iir_tdf2_asm.h
+
+This file defines flags to use Q6 ASM of IIR TDF2 functions.
+*/
+
+/*
+ * Copyright (c) Qualcomm Innovation Center, Inc. All Rights Reserved.
+ * SPDX-License-Identifier: BSD-3-Clause-Clear
+ */
+
+#ifndef _AUDIO_IIRTDF2_ASM_H_
+#define _AUDIO_IIRTDF2_ASM_H_
+
+#define    QDSP6_ASM_IIRTDF2_32
+#define    QDSP6_ASM_IIRTDF2_16
+
+#endif  /* _AUDIO_IIRTDF2_ASM_H_ */

modules/cmn/common/utils/src/audio_filter.cpp

@@ -450,7 +450,7 @@ void biquad_process_io
 )
 {
 
-/*#if ((defined __hexagon__) || (defined __qdsp6__))
+#if ((defined __hexagon__) || (defined __qdsp6__))
 
     int16 *bufPtr = srcBuf;
     int16 *coeffptr = &filter->coeffsL16Q13[filter->coeffIndex];
@@ -459,7 +459,7 @@ void biquad_process_io
 
 
 
-#else  */  
+#else
     int32 i;
     int16 xInL16;
     int16 *yL16 = filter->yL16;
@@ -520,7 +520,7 @@ void biquad_process_io
     }
     /*-- store accumulator value back --*/
     filter->yL32 = s32_extract_s40_l(yL40);
-//#endif
+#endif
 }  /*----------------- end of function biquad_process_io --------------------*/