The %p format of printf() would print a pointer to address null as
"(null)". This makes sense in a real OS where a NULL pointer must
never be dereferenced, but this is a bootloader, and there are cases
where accessing the data at address null makes perfect sense.
Remove the special case in lib/vsprintf.c using "#if 0" with a comment
to make clear this was an intentional change and to stop re-adding
this code.
Signed-off-by: Wolfgang Denk <w...@denx.de>
---
lib/vsprintf.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d762763..dd13bca 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -495,9 +495,15 @@ static char *ip4_addr_string(char *buf, char *end, u8
*addr, int field_width,
static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
int field_width, int precision, int flags)
{
+ /*
+ * Being a boot loader, we explicitly allow pointers to
+ * (physical) address null.
+ */
+#if 0
if (!ptr)
return string(buf, end, "(null)", field_width, precision,
flags);
+#endif
#ifdef CONFIG_CMD_NET
switch (*fmt) {
--
1.7.11.7
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
