Fix sha256 padding block initializer to be static.

Jakub points out that having an automatic array is not only
bad for performance (and stack usage), gcc has also historically
had lots of bugs here, and gcc-3.2.3 seems to miscompile it
otherwise.

diff --git a/crypto/sha256.c b/crypto/sha256.c
index 030fe5cc6a644b18940ad7025f5ed31d2ec3ee95..8122872e414f276b3bc0610ee6704118281bb444 100644 (file)
--- a/crypto/sha256.c
+++ b/crypto/sha256.c
@@ -295,7 +295,7 @@ static void sha256_final(void* ctx, u8 *out)
        u8 bits[8];
        unsigned int index, pad_len, t;
        int i, j;
-       const u8 padding[64] = { 0x80, };
+       static const u8 padding[64] = { 0x80, };
 
        /* Save number of bits */
        t = sctx->count[0];