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Diffstat (limited to 'usr/src/lib/libsum/common/sum-att.c')
-rw-r--r--usr/src/lib/libsum/common/sum-att.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/usr/src/lib/libsum/common/sum-att.c b/usr/src/lib/libsum/common/sum-att.c
deleted file mode 100644
index 1dc2ec6214..0000000000
--- a/usr/src/lib/libsum/common/sum-att.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/***********************************************************************
-* *
-* This software is part of the ast package *
-* Copyright (c) 1996-2010 AT&T Intellectual Property *
-* and is licensed under the *
-* Common Public License, Version 1.0 *
-* by AT&T Intellectual Property *
-* *
-* A copy of the License is available at *
-* http://www.opensource.org/licenses/cpl1.0.txt *
-* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
-* *
-* Information and Software Systems Research *
-* AT&T Research *
-* Florham Park NJ *
-* *
-* Glenn Fowler <gsf@research.att.com> *
-* *
-***********************************************************************/
-#pragma prototyped
-
-/*
- * att
- */
-
-#define att_description \
- "The system 5 release 4 checksum. This is the default for \bsum\b \
- when \bgetconf UNIVERSE\b is \batt\b. This is the only true sum; \
- all of the other methods are order dependent."
-#define att_options 0
-#define att_match "att|sys5|s5|default"
-#define att_open long_open
-#define att_init long_init
-#define att_print long_print
-#define att_data long_data
-#define att_scale 512
-
-#if defined(__SUNPRO_C) || defined(__GNUC__)
-
-#if defined(__SUNPRO_C)
-# include <sun_prefetch.h>
-# define sum_prefetch(addr) sun_prefetch_read_many((void *)(addr))
-#elif defined(__GNUC__)
-# define sum_prefetch(addr) __builtin_prefetch((addr), 0, 3)
-#else
-# error Unknown compiler
-#endif
-
-#define CBLOCK_SIZE (64)
-#pragma unroll(16)
-
-/* Inmos transputer would love this algorithm */
-static int
-att_block(register Sum_t* p, const void* s, size_t n)
-{
- register uint32_t c = ((Integral_t*)p)->sum;
- register const unsigned char* b = (const unsigned char*)s;
- register const unsigned char* e = b + n;
- register uint32_t s0, s1, s2, s3, s4, s5, s6, s7;
- register unsigned int i;
-
- s0=s1=s2=s3=s4=s5=s6=s7=0U;
-
- sum_prefetch((void *)b);
-
- while (n > CBLOCK_SIZE)
- {
- sum_prefetch((b+CBLOCK_SIZE));
-
- /* Compiler will unroll for() loops per #pragma unroll */
- for (i=0 ; i < (CBLOCK_SIZE/8) ; i++)
- {
- /*
- * use s0-s7 to decouple calculations (this improves pipelining)
- * because each operation is completely independent from it's
- * siblings
- */
- s0+=b[0];
- s1+=b[1];
- s2+=b[2];
- s3+=b[3];
- s4+=b[4];
- s5+=b[5];
- s6+=b[6];
- s7+=b[7];
-
- b+=8;
- n-=8;
- }
- }
-
- c+=s0+s1+s2+s3+s4+s5+s6+s7;
-
- while (b < e)
- c += *b++;
- ((Integral_t*)p)->sum = c;
- return 0;
-}
-
-#else
-static int
-att_block(register Sum_t* p, const void* s, size_t n)
-{
- register uint32_t c = ((Integral_t*)p)->sum;
- register unsigned char* b = (unsigned char*)s;
- register unsigned char* e = b + n;
-
- while (b < e)
- c += *b++;
- ((Integral_t*)p)->sum = c;
- return 0;
-}
-#endif /* defined(__SUNPRO_C) || defined(__GNUC__) */
-
-static int
-att_done(Sum_t* p)
-{
- register uint32_t c = ((Integral_t*)p)->sum;
-
- c = (c & 0xffff) + ((c >> 16) & 0xffff);
- c = (c & 0xffff) + (c >> 16);
- ((Integral_t*)p)->sum = c & 0xffff;
- return short_done(p);
-}