ao-stmload: Always round up load amount to 4 byte boundary

The flashing code doesn't deal with partial writes.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/ao-tools/ao-stmload/ao-stmload.c b/ao-tools/ao-stmload/ao-stmload.c
index e689539bb41c5b3e372c3698d2ae601444fdf30c..a471dcc47358b6d54a1dcefaae6769d73b750946 100644 (file)
--- a/ao-tools/ao-stmload/ao-stmload.c
+++ b/ao-tools/ao-stmload/ao-stmload.c
@@ -112,10 +112,17 @@ struct load {
        uint8_t         buf[0];
 };
 
        uint8_t         buf[0];
 };
 

+uint32_t round4(uint32_t a) {
+       return (a + 3) & ~3;
+}
+

 struct load *
 new_load (uint32_t addr, uint32_t len)
 {
 struct load *
 new_load (uint32_t addr, uint32_t len)
 {

-       struct load *new = calloc (1, sizeof (struct load) + len);
+       struct load *new;
+
+       len = round4(len);
+       new = calloc (1, sizeof (struct load) + len);

        if (!new)
                abort();
 
        if (!new)
                abort();