From ae5452f24868b3682a308b9d56881c66c6ae016c Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Date: Tue, 4 Feb 2025 10:58:23 +0100
Subject: [PATCH] llext: export symbols, needed by TDFB

Modular TDFB needs additional exported symbols from Zephyr and SOF
core.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
---
 src/ipc/ipc-common.c  | 1 +
 src/math/sqrt_int16.c | 2 ++
 src/math/trig.c       | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/src/ipc/ipc-common.c b/src/ipc/ipc-common.c
index 6557fdd50b59..244a218d5be8 100644
--- a/src/ipc/ipc-common.c
+++ b/src/ipc/ipc-common.c
@@ -252,6 +252,7 @@ void ipc_msg_send(struct ipc_msg *msg, void *data, bool high_priority)
 
 	k_spin_unlock(&ipc->lock, key);
 }
+EXPORT_SYMBOL(ipc_msg_send);
 
 #ifdef __ZEPHYR__
 static void ipc_work_handler(struct k_work *work)
diff --git a/src/math/sqrt_int16.c b/src/math/sqrt_int16.c
index 0d62e8145187..9068717d638d 100644
--- a/src/math/sqrt_int16.c
+++ b/src/math/sqrt_int16.c
@@ -6,6 +6,7 @@
 //
 //
 
+#include <rtos/symbol.h>
 #include <sof/math/sqrt.h>
 
 #define SQRT_WRAP_SCHAR_BITS 0xFF
@@ -145,3 +146,4 @@ uint16_t sqrt_int16(uint16_t u)
 
 	return y;
 }
+EXPORT_SYMBOL(sqrt_int16);
diff --git a/src/math/trig.c b/src/math/trig.c
index ee5014cf91d2..32613d393034 100644
--- a/src/math/trig.c
+++ b/src/math/trig.c
@@ -7,6 +7,7 @@
 //         Keyon Jie <yang.jie@linux.intel.com>
 //         Shriram Shastry <malladi.sastry@linux.intel.com>
 
+#include <rtos/symbol.h>
 #include <sof/audio/format.h>
 #include <sof/math/trig.h>
 #include <sof/math/cordic.h>
@@ -99,6 +100,7 @@ void cordic_approx(int32_t th_rad_fxp, int32_t a_idx, int32_t *sign, int32_t *b_
 	/* Q2.30 format -sine, cosine*/
 	*th_cdc_fxp = th_rad_fxp;
 }
+EXPORT_SYMBOL(cordic_approx);
 
 /**
  * CORDIC-based approximation for inverse cosine