allow ports to override go behavior

Split the arch-specific logic out of the common go code and into a dedicated
weak function called do_go_exec() that lives in cpu directories.  This will
need review from i386/nios people to make sure I didn't break them.

1 files changed, 10 insertions, 0 deletions

diff --git a/lib_nios/board.c b/lib_nios/board.c
index 0a0d2e38f..cdaf753ac 100644
--- a/lib_nios/board.c
+++ b/lib_nios/board.c
@@ -190,3 +190,13 @@ void hang (void)
 	puts("### ERROR ### Please reset board ###\n");
 	for (;;);
 }
+
+unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char *argv[])
+{
+	/*
+	 * x86 does not use a dedicated register to pass the pointer
+	 * to the global_data
+	 */
+	argv[-1] = (char *)gd;
+	return entry (argc, argv);
+}