From b32d5554b56e903ca1c3a62bf3f65b924ac38f1d Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jyri.sarha@linux.intel.com>
Date: Fri, 8 Nov 2024 13:17:26 +0200
Subject: [PATCH] drivers: timer: Export sys_clock_cycle_get_64()
 implementations

Export sys_clock_cycle_get_64() implementations to enable k_cycle_get_64()
calls from llext libraries.

Signed-off-by: Jyri Sarha <jyri.sarha@linux.intel.com>
---
 drivers/timer/CMakeLists.txt |  1 +
 drivers/timer/export.c       | 13 +++++++++++++
 2 files changed, 14 insertions(+)
 create mode 100644 drivers/timer/export.c

diff --git a/drivers/timer/CMakeLists.txt b/drivers/timer/CMakeLists.txt
index 80f0d03e69022e..07b0dd21e72b8f 100644
--- a/drivers/timer/CMakeLists.txt
+++ b/drivers/timer/CMakeLists.txt
@@ -2,6 +2,7 @@
 
 zephyr_library()
 zephyr_library_sources(sys_clock_init.c)
+zephyr_library_sources_ifdef(CONFIG_LLEXT export.c)
 zephyr_library_sources_ifdef(CONFIG_ALTERA_AVALON_TIMER altera_avalon_timer_hal.c)
 zephyr_library_sources_ifdef(CONFIG_AMBIQ_STIMER_TIMER ambiq_stimer.c)
 zephyr_library_sources_ifdef(CONFIG_APIC_TIMER apic_timer.c)
diff --git a/drivers/timer/export.c b/drivers/timer/export.c
new file mode 100644
index 00000000000000..a68c4ae41f069f
--- /dev/null
+++ b/drivers/timer/export.c
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2024 Intel Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/drivers/timer/system_timer.h>
+#include <zephyr/llext/symbol.h>
+#include <limits.h>
+
+#ifdef CONFIG_TIMER_HAS_64BIT_CYCLE_COUNTER
+EXPORT_SYMBOL(sys_clock_cycle_get_64);
+#endif