Index: uspace/lib/c/arch/abs32le/include/fibril.h
===================================================================
--- uspace/lib/c/arch/abs32le/include/fibril.h	(revision 63f89665fc0283c1661274dc636d5a66e03d48b4)
+++ uspace/lib/c/arch/abs32le/include/fibril.h	(revision 7ae3d6f9d860f518c19f0060df70099eddaf81a0)
@@ -44,4 +44,5 @@
 		(ctx)->pc = (uintptr_t) (_pc); \
 		(ctx)->sp = ((uintptr_t) (stack)) + (size) - SP_DELTA; \
+		(ctx)->fp = 0; \
 		(ctx)->tls = ((uintptr_t) (ptls)) + sizeof(tcb_t); \
 	} while (0)
@@ -53,7 +54,14 @@
 typedef struct {
 	uintptr_t sp;
+	uintptr_t fp;
 	uintptr_t pc;
 	uintptr_t tls;
 } context_t;
+
+static inline uintptr_t context_get_fp(context_t *ctx)
+{
+	/* On real hardware, this function returns the frame pointer. */
+	return ctx->fp;
+}
 
 #endif