/usr/include/mysql/byte_order_generic_x86.h is in libmysqlclient-dev 5.7.21-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | /* Copyright (c) 2001, 2015, 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 02110-1301 USA */
/*
Optimized functions for the x86 architecture (_WIN32 included).
x86 handles misaligned reads and writes just fine, so suppress
UBSAN warnings for these functions.
*/
static inline int16 sint2korr(const uchar *A) SUPPRESS_UBSAN;
static inline int16 sint2korr(const uchar *A) { return *((int16*) A); }
static inline int32 sint4korr(const uchar *A) SUPPRESS_UBSAN;
static inline int32 sint4korr(const uchar *A) { return *((int32*) A); }
static inline uint16 uint2korr(const uchar *A) SUPPRESS_UBSAN;
static inline uint16 uint2korr(const uchar *A) { return *((uint16*) A); }
static inline uint32 uint4korr(const uchar *A) SUPPRESS_UBSAN;
static inline uint32 uint4korr(const uchar *A) { return *((uint32*) A); }
static inline ulonglong uint8korr(const uchar *A) SUPPRESS_UBSAN;
static inline ulonglong uint8korr(const uchar *A) { return *((ulonglong*) A);}
static inline longlong sint8korr(const uchar *A) SUPPRESS_UBSAN;
static inline longlong sint8korr(const uchar *A) { return *((longlong*) A); }
static inline void int2store(uchar *T, uint16 A) SUPPRESS_UBSAN;
static inline void int2store(uchar *T, uint16 A)
{
*((uint16*) T)= A;
}
static inline void int4store(uchar *T, uint32 A) SUPPRESS_UBSAN;
static inline void int4store(uchar *T, uint32 A)
{
*((uint32*) T)= A;
}
static inline void int8store(uchar *T, ulonglong A) SUPPRESS_UBSAN;
static inline void int8store(uchar *T, ulonglong A)
{
*((ulonglong*) T)= A;
}
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