posix: fpu: Fix compiler error when enabling fpu on posix boards

Enabling CONFIG_FPU and CONFIG_FPU_SHARING requires the definition of `arch_float_disable` and `arch_float_enable`. Signed-off-by: Matthias Alleman <[email protected]> (cherry picked from commit e7c353b)
zephyrproject-rtos · Nov 26, 2024 · 9840520 · 9840520
1 parent 9f82428
commit 9840520
Showing 1 changed file with 19 additions and 0 deletions.
diff --git a/arch/posix/core/thread.c b/arch/posix/core/thread.c
@@ -61,6 +61,25 @@ void posix_arch_thread_entry(void *pa_thread_status)
 	z_thread_entry(ptr->entry_point, ptr->arg1, ptr->arg2, ptr->arg3);
 }
 
+#if defined(CONFIG_FPU) && defined(CONFIG_FPU_SHARING)
+int arch_float_disable(struct k_thread *thread)
+{
+	ARG_UNUSED(thread);
+
+	/* Posix always has FPU enabled so cannot be disabled */
+	return -ENOTSUP;
+}
+
+int arch_float_enable(struct k_thread *thread, unsigned int options)
+{
+	ARG_UNUSED(thread);
+	ARG_UNUSED(options);
+
+	/* Posix always has FPU enabled so nothing to do here */
+	return 0;
+}
+#endif /* CONFIG_FPU && CONFIG_FPU_SHARING */
+
 #if defined(CONFIG_ARCH_HAS_THREAD_ABORT)
 void z_impl_k_thread_abort(k_tid_t thread)
 {