libc: newlib: Fix declare a type conflict

Fix a variable declaration type conflict: libc-hooks.c:92:16: error: conflicting types for '_heap_sentry' 92 | extern void *_heap_sentry; soc.h:78:13: note: previous declaration of '_heap_sentry' was here Fixes zephyrproject-rtos#44926 Signed-off-by: Flavio Ceolin <[email protected]>
ceolin · Apr 18, 2022 · b7e0354 · b7e0354
1 parent 13f3822
commit b7e0354
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/libc/newlib/libc-hooks.c b/lib/libc/newlib/libc-hooks.c
@@ -89,7 +89,7 @@
 	/* End of the malloc arena is the end of physical memory */
 	#if defined(CONFIG_XTENSA)
 		/* TODO: Why is xtensa a special case? */
-		extern void *_heap_sentry;
+		extern char _heap_sentry[];
 		#define MAX_HEAP_SIZE	(POINTER_TO_UINT(&_heap_sentry) - \
 					 HEAP_BASE)
 	#else