Author: ian
Date: Sat Mar 1 19:25:23 2014
New Revision: 262666
URL: http://svnweb.freebsd.org/changeset/base/262666
Log:
If we can't find the u-boot api signature, exit with an error status that
includes "badab1"; u-boot displays the status in hex, so this may help
give some clue about why ubldr isn't working (more than -1 does anyway).
Modified:
head/sys/boot/uboot/common/main.c
Modified: head/sys/boot/uboot/common/main.c
==============================================================================
--- head/sys/boot/uboot/common/main.c Sat Mar 1 19:06:43 2014
(r262665)
+++ head/sys/boot/uboot/common/main.c Sat Mar 1 19:25:23 2014
(r262666)
@@ -124,15 +124,21 @@ main(void)
struct open_file f;
const char * loaderdev;
+ /*
+ * If we can't find the magic signature and related info, exit with a
+ * unique error code that U-Boot reports as "## Application terminated,
+ * rc = 0xnnbadab1". Hopefully 'badab1' looks enough like "bad api" to
+ * provide a clue. It's better than 0xffffffff anyway.
+ */
if (!api_search_sig(&sig))
- return (-1);
+ return (0x01badab1);
syscall_ptr = sig->syscall;
if (syscall_ptr == NULL)
- return (-2);
+ return (0x02badab1);
if (sig->version > API_SIG_VERSION)
- return (-3);
+ return (0x03badab1);
/* Clear BSS sections */
bzero(__sbss_start, __sbss_end - __sbss_start);
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