shaN: code shrink
function old new delta
init512_lo 32 40 +8
init256 32 40 +8
sha256_begin 42 28 -14
sha512_begin 81 53 -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 16/-42) Total: -26 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/include/libbb.h b/include/libbb.h
index f406fc6..d05b2d4 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1514,7 +1514,7 @@
typedef struct sha1_ctx_t {
uint32_t hash[8]; /* 5, +3 elements for sha256 */
- uint64_t total64;
+ uint64_t total64; /* must be directly after hash[] */
uint8_t wbuffer[64]; /* NB: always correctly aligned for uint64_t */
void (*process_block)(struct sha1_ctx_t*) FAST_FUNC;
} sha1_ctx_t;
@@ -1527,7 +1527,7 @@
#define sha256_end sha1_end
typedef struct sha512_ctx_t {
uint64_t hash[8];
- uint64_t total64[2];
+ uint64_t total64[2]; /* must be directly after hash[] */
uint8_t wbuffer[128]; /* NB: always correctly aligned for uint64_t */
} sha512_ctx_t;
void sha512_begin(sha512_ctx_t *ctx) FAST_FUNC;