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shaN: code shrink

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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>
This commit is contained in:
Denys Vlasenko
2010-10-17 01:35:16 +02:00
parent 446c2349b6
commit a971a192e8
2 changed files with 12 additions and 7 deletions
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4
include/libbb.h
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@@ -1514,7 +1514,7 @@ void FAST_FUNC read_base64(FILE *src_stream, FILE *dst_stream, int flags);
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 @@ void sha256_begin(sha256_ctx_t *ctx) FAST_FUNC;
#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;