cmd/fdt.c align data buffer to avoid unaligned word access
Since the compiler is free to place a char array to any address in
memory (in this case the stack), also to a non word aligned address the
function "fdt_prop_parse" runs into troubles upon it wants to write some
(fdt32_t *) to such a variable (if it has been placed to a none word
aligned address).
To avoid this we tell the compiler to always align this scratchpad to a
word aligned address.
Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/fdt.c b/cmd/fdt.c
index 955a008..b783b0d 100644
--- a/cmd/fdt.c
+++ b/cmd/fdt.c
@@ -256,7 +256,7 @@
char *pathp; /* path */
char *prop; /* property */
int nodeoffset; /* node offset from libfdt */
- static char data[SCRATCHPAD]; /* storage for the property */
+ static char data[SCRATCHPAD] __aligned(4);/* property storage */
const void *ptmp;
int len; /* new length of the property */
int ret; /* return value */