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crypto: Remove _STRING_ARCH_unaligned usage

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Assume unaligned inputs on all cases.  The code is built and used only
in compat mode.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>
This commit is contained in:
Adhemerval Zanella
2023-02-09 10:26:43 -03:00
parent 609054152f
commit 11053fd424
3 changed files with 13 additions and 65 deletions
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26
crypt/sha512.c
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@@ -192,28 +192,12 @@ __sha512_process_bytes (const void *buffer, size_t len, struct sha512_ctx *ctx)
/* Process available complete blocks. */
if (len >= 128)
{
#if !_STRING_ARCH_unaligned
/* To check alignment gcc has an appropriate operator. Other
compilers don't. */
# if __GNUC__ >= 2
# define UNALIGNED_P(p) (((uintptr_t) p) % __alignof__ (uint64_t) != 0)
# else
# define UNALIGNED_P(p) (((uintptr_t) p) % sizeof (uint64_t) != 0)
# endif
if (UNALIGNED_P (buffer))
while (len > 128)
{
__sha512_process_block (memcpy (ctx->buffer, buffer, 128), 128,
ctx);
buffer = (const char *) buffer + 128;
len -= 128;
}
else
#endif
while (len > 128)
{
__sha512_process_block (buffer, len & ~127, ctx);
buffer = (const char *) buffer + (len & ~127);
len &= 127;
__sha512_process_block (memcpy (ctx->buffer, buffer, 128), 128,
ctx);
buffer = (const char *) buffer + 128;
len -= 128;
}
}