Temporary commit of 10.0-merge

1 files changed, 75 insertions, 0 deletions

diff --git a/include/little_endian.h b/include/little_endian.h
new file mode 100644
index 00000000000..7223fea648f
--- /dev/null
+++ b/include/little_endian.h
@@ -0,0 +1,75 @@
+/* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02111-1307  USA */
+
+/*
+  Data in little-endian format.
+*/
+
+#ifndef MY_BYTE_ORDER_ARCH_OPTIMIZED
+#define float4get(V,M)   memcpy(&V, (M), sizeof(float))
+#define float4store(V,M) memcpy(V, (&M), sizeof(float))
+#define float8get(V,M)   doubleget((V),(M))
+#define float8store(V,M) doublestore((V),(M))
+
+/* Bi-endian hardware.... */
+#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
+#define doublestore(T,V) do { *(((char*)T)+0)=(char) ((uchar *) &V)[4];\
+                              *(((char*)T)+1)=(char) ((uchar *) &V)[5];\
+                              *(((char*)T)+2)=(char) ((uchar *) &V)[6];\
+                              *(((char*)T)+3)=(char) ((uchar *) &V)[7];\
+                              *(((char*)T)+4)=(char) ((uchar *) &V)[0];\
+                              *(((char*)T)+5)=(char) ((uchar *) &V)[1];\
+                              *(((char*)T)+6)=(char) ((uchar *) &V)[2];\
+                              *(((char*)T)+7)=(char) ((uchar *) &V)[3]; }\
+                         while(0)
+#define doubleget(V,M)   do { double def_temp;\
+                              ((uchar*) &def_temp)[0]=(M)[4];\
+                              ((uchar*) &def_temp)[1]=(M)[5];\
+                              ((uchar*) &def_temp)[2]=(M)[6];\
+                              ((uchar*) &def_temp)[3]=(M)[7];\
+                              ((uchar*) &def_temp)[4]=(M)[0];\
+                              ((uchar*) &def_temp)[5]=(M)[1];\
+                              ((uchar*) &def_temp)[6]=(M)[2];\
+                              ((uchar*) &def_temp)[7]=(M)[3];\
+                              (V) = def_temp; } while(0)
+#else /* Bi-endian hardware.... */
+
+/* Cast away type qualifiers (necessary as macro takes argument by value). */
+#define doublestore(T,V) memcpy((T), (void*) &V, sizeof(double))
+#define doubleget(V,M)	 memcpy(&V, (M), sizeof(double))
+
+#endif /* Bi-endian hardware.... */
+
+#endif /* !MY_BYTE_ORDER_ARCH_OPTIMIZED */
+
+#define ushortget(V,M)	do { uchar *pM= (uchar*)(M);V = uint2korr(pM);} while(0)
+#define shortget(V,M)	do { uchar *pM= (uchar*)(M);V = sint2korr(pM);} while(0)
+#define longget(V,M)	do { uchar *pM= (uchar*)(M);V = sint4korr(pM);} while(0)
+#define ulongget(V,M)   do { uchar *pM= (uchar*)(M);V = uint4korr(pM);} while(0)
+#define shortstore(T,V) int2store(T,V)
+#define longstore(T,V)	int4store(T,V)
+
+#ifndef floatstore
+/* Cast away type qualifiers (necessary as macro takes argument by value). */
+#define floatstore(T,V)  memcpy((T), (void*) (&V), sizeof(float))
+#define floatget(V,M)    memcpy(&V, (M), sizeof(float))
+#endif
+#ifndef doubleget
+#define doubleget(V,M)	 memcpy(&V, (M), sizeof(double))
+#define doublestore(T,V) memcpy((T), (void *) &V, sizeof(double))
+#endif /* doubleget */
+
+#define longlongget(V,M) memcpy(&V, (M), sizeof(ulonglong))
+#define longlongstore(T,V) memcpy((T), &V, sizeof(ulonglong))