* Implement new mechanism to export U-Boot's functions to standalone

  applications: instead of using (PPC-specific) system calls we now
  use a jump table; please see doc/README.standalone for details

* Patch by Dave Westwood, 24 Jul 2003:
  added support for Unity OS (a proprietary OS)

1 files changed, 31 insertions, 0 deletions

diff --git a/common/exports.c b/common/exports.c
new file mode 100644
index 00000000000..22002ccb38a
--- /dev/null
+++ b/common/exports.c
@@ -0,0 +1,31 @@
+#include <common.h>
+#include <exports.h>
+
+static void dummy(void)
+{
+}
+
+unsigned long get_version(void)
+{
+	return XF_VERSION;
+}
+
+void jumptable_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	int i;
+
+	gd->jt = (void **) malloc (XF_MAX * sizeof (void *));
+	for (i = 0; i < XF_MAX; i++)
+		gd->jt[i] = (void *) dummy;
+
+	gd->jt[XF_get_version] = (void *) get_version;
+	gd->jt[XF_malloc] = (void *) malloc;
+	gd->jt[XF_free] = (void *) free;
+	gd->jt[XF_get_timer] = (void *)get_timer;
+	gd->jt[XF_udelay] = (void *)udelay;
+#if defined(CONFIG_I386) || defined(CONFIG_PPC)
+	gd->jt[XF_install_hdlr] = (void *) irq_install_handler;
+	gd->jt[XF_free_hdlr] = (void *) irq_free_handler;
+#endif
+}