diff target-utils/libcommon/cmd_jump.c @ 26:1a3bbab2ea26

loadagent: jump command implemented
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sat, 04 May 2013 05:38:58 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/libcommon/cmd_jump.c	Sat May 04 05:38:58 2013 +0000
@@ -0,0 +1,24 @@
+/*
+ * jump hexaddr -- transfer control with BX
+ */
+
+#include <sys/types.h>
+#include "types.h"
+
+void
+cmd_jump(argbulk)
+	char *argbulk;
+{
+	char *argv[2];
+	u_long addr;
+
+	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
+		return;
+	if (parse_hexarg(argv[0], 8, &addr) < 0) {
+		printf("ERROR: argument must be a valid 32-bit hex address\n");
+		return;
+	}
+	serial_flush();
+	asm volatile ("bx %0" : : "r" (addr));
+	__builtin_unreachable();
+}