Add support for sparc cryptographic hash opcodes.

* crypt/Makefile: Move test targets after toplevel Rules
	inclusion.  Grab any necessary sysdep routines when linking.
	* crypt/md5.c (md5_process_block): Remove define, we will always
	name it __md5_process_block.
	(md5_finish_ctx): Update md5_process_block call.
	(md5_stream): Likewise.
	(md5_process_bytes): Likewise.
	(md5_process_block): Rename to __md5_process_block and move to ...
	* crypt/md5-block.c: ... here.
	* crypt/sha256.c (sha256_process_block): Move to ...
	* crypt/sha256-block.c: ... here.
	* crypt/sha512.c (sha512_process_block): Move to ...
	* crypt/sha512-block.c: ... here.
	* locale/Makefile (CFLAGS-md5.c): Define to add crypt/ to include
	path.
	* sysdeps/sparc/sparc-ifunc.c (sparc_libc_ifunc): Define.
	* sysdeps/sparc/sparc64/multiarch/Makefile
	(libcrypt-sysdep_routines): Add crypto assembler sysdeps when in
	crypt subdir.
	(localedef-aux): Add md5 crypto assembler when in locale subdir.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile: Mirror sparc64
	multiarch changes.
	* sysdeps/sparc/sparc64/multiarch/md5-block.c: New file.
	* sysdeps/sparc/sparc64/multiarch/md5-crop.S: New file.
	* sysdeps/sparc/sparc64/multiarch/sha256-block.c: New file.
	* sysdeps/sparc/sparc64/multiarch/sha256-crop.S: New file.
	* sysdeps/sparc/sparc64/multiarch/sha512-block.c: New file.
	* sysdeps/sparc/sparc64/multiarch/sha512-crop.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/md5-block.c: New file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/md5-crop.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/sha256-block.c: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/sha256-crop.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/sha512-block.c: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/sha512-crop.S: New file.

crypt/sha512-block.c

@@ -0,0 +1,103 @@
+/* Process LEN bytes of BUFFER, accumulating context into CTX.
+   It is assumed that LEN % 128 == 0.  */
+void
+sha512_process_block (const void *buffer, size_t len, struct sha512_ctx *ctx)
+{
+  const uint64_t *words = buffer;
+  size_t nwords = len / sizeof (uint64_t);
+  uint64_t a = ctx->H[0];
+  uint64_t b = ctx->H[1];
+  uint64_t c = ctx->H[2];
+  uint64_t d = ctx->H[3];
+  uint64_t e = ctx->H[4];
+  uint64_t f = ctx->H[5];
+  uint64_t g = ctx->H[6];
+  uint64_t h = ctx->H[7];
+
+  /* First increment the byte count.  FIPS 180-2 specifies the possible
+     length of the file up to 2^128 bits.  Here we only compute the
+     number of bytes.  Do a double word increment.  */
+#ifdef USE_TOTAL128
+  ctx->total128 += len;
+#else
+  uint64_t lolen = len;
+  ctx->total[TOTAL128_low] += lolen;
+  ctx->total[TOTAL128_high] += ((len >> 31 >> 31 >> 2)
+				+ (ctx->total[TOTAL128_low] < lolen));
+#endif
+
+  /* Process all bytes in the buffer with 128 bytes in each round of
+     the loop.  */
+  while (nwords > 0)
+    {
+      uint64_t W[80];
+      uint64_t a_save = a;
+      uint64_t b_save = b;
+      uint64_t c_save = c;
+      uint64_t d_save = d;
+      uint64_t e_save = e;
+      uint64_t f_save = f;
+      uint64_t g_save = g;
+      uint64_t h_save = h;
+
+      /* Operators defined in FIPS 180-2:4.1.2.  */
+#define Ch(x, y, z) ((x & y) ^ (~x & z))
+#define Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
+#define S0(x) (CYCLIC (x, 28) ^ CYCLIC (x, 34) ^ CYCLIC (x, 39))
+#define S1(x) (CYCLIC (x, 14) ^ CYCLIC (x, 18) ^ CYCLIC (x, 41))
+#define R0(x) (CYCLIC (x, 1) ^ CYCLIC (x, 8) ^ (x >> 7))
+#define R1(x) (CYCLIC (x, 19) ^ CYCLIC (x, 61) ^ (x >> 6))
+
+      /* It is unfortunate that C does not provide an operator for
+	 cyclic rotation.  Hope the C compiler is smart enough.  */
+#define CYCLIC(w, s) ((w >> s) | (w << (64 - s)))
+
+      /* Compute the message schedule according to FIPS 180-2:6.3.2 step 2.  */
+      for (unsigned int t = 0; t < 16; ++t)
+	{
+	  W[t] = SWAP (*words);
+	  ++words;
+	}
+      for (unsigned int t = 16; t < 80; ++t)
+	W[t] = R1 (W[t - 2]) + W[t - 7] + R0 (W[t - 15]) + W[t - 16];
+
+      /* The actual computation according to FIPS 180-2:6.3.2 step 3.  */
+      for (unsigned int t = 0; t < 80; ++t)
+	{
+	  uint64_t T1 = h + S1 (e) + Ch (e, f, g) + K[t] + W[t];
+	  uint64_t T2 = S0 (a) + Maj (a, b, c);
+	  h = g;
+	  g = f;
+	  f = e;
+	  e = d + T1;
+	  d = c;
+	  c = b;
+	  b = a;
+	  a = T1 + T2;
+	}
+
+      /* Add the starting values of the context according to FIPS 180-2:6.3.2
+	 step 4.  */
+      a += a_save;
+      b += b_save;
+      c += c_save;
+      d += d_save;
+      e += e_save;
+      f += f_save;
+      g += g_save;
+      h += h_save;
+
+      /* Prepare for the next round.  */
+      nwords -= 16;
+    }
+
+  /* Put checksum in context given as argument.  */
+  ctx->H[0] = a;
+  ctx->H[1] = b;
+  ctx->H[2] = c;
+  ctx->H[3] = d;
+  ctx->H[4] = e;
+  ctx->H[5] = f;
+  ctx->H[6] = g;
+  ctx->H[7] = h;
+}