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Overview
| Comment: | Do not make assumptions about the byteorder of PowerPC processors. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
4a2498fed4c5436fbcd4179db85e2741 |
| User & Date: | drh 2023-09-04 12:50:17 |
Context
|
2023-09-04
| ||
| 16:48 | Add tests for, and source code comments to, fts5. No changes to code. (check-in: b12afff4 user: dan tags: trunk) | |
| 12:50 | Do not make assumptions about the byteorder of PowerPC processors. (check-in: 4a2498fe user: drh tags: trunk) | |
|
2023-09-02
| ||
| 19:35 | Performance optimization to the OP_MakeRecord opcode. (check-in: 2aef9af3 user: drh tags: trunk) | |
Changes
Changes to ext/rtree/rtree.c.
| ︙ | ︙ | |||
471 472 473 474 475 476 477 | ** and whether or not that determination is run-time or compile-time. ** ** For best performance, an attempt is made to guess at the byte-order ** using C-preprocessor macros. If that is unsuccessful, or if ** -DSQLITE_RUNTIME_BYTEORDER=1 is set, then byte-order is determined ** at run-time. */ | | > > > > > > | | | < | | 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 |
** and whether or not that determination is run-time or compile-time.
**
** For best performance, an attempt is made to guess at the byte-order
** using C-preprocessor macros. If that is unsuccessful, or if
** -DSQLITE_RUNTIME_BYTEORDER=1 is set, then byte-order is determined
** at run-time.
*/
#ifndef SQLITE_BYTEORDER /* Replicate changes at tag-20230904a */
# if defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_BIG_ENDIAN__
# define SQLITE_BYTEORDER 4321
# elif defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__
# define SQLITE_BYTEORDER 1234
# elif defined(__BIG_ENDIAN__) && __BIG_ENDIAN__==1
# define SQLITE_BYTEORDER 4321
# elif defined(i386) || defined(__i386__) || defined(_M_IX86) || \
defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \
defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \
defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
# define SQLITE_BYTEORDER 1234
# elif defined(sparc) || defined(__ARMEB__) || defined(__AARCH64EB__)
# define SQLITE_BYTEORDER 4321
# else
# define SQLITE_BYTEORDER 0
# endif
#endif
/* What version of MSVC is being used. 0 means MSVC is not being used */
|
| ︙ | ︙ |
Changes to src/sqliteInt.h.
| ︙ | ︙ | |||
919 920 921 922 923 924 925 926 | ** Macros to determine whether the machine is big or little endian, ** and whether or not that determination is run-time or compile-time. ** ** For best performance, an attempt is made to guess at the byte-order ** using C-preprocessor macros. If that is unsuccessful, or if ** -DSQLITE_BYTEORDER=0 is set, then byte-order is determined ** at run-time. */ | > > > > > > > > > > > > | > > > > > > | | | < | | 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 |
** Macros to determine whether the machine is big or little endian,
** and whether or not that determination is run-time or compile-time.
**
** For best performance, an attempt is made to guess at the byte-order
** using C-preprocessor macros. If that is unsuccessful, or if
** -DSQLITE_BYTEORDER=0 is set, then byte-order is determined
** at run-time.
**
** If you are building SQLite on some obscure platform for which the
** following ifdef magic does not work, you can always include either:
**
** -DSQLITE_BYTEORDER=1234
**
** or
**
** -DSQLITE_BYTEORDER=4321
**
** to cause the build to work for little-endian or big-endian processors,
** respectively.
*/
#ifndef SQLITE_BYTEORDER /* Replicate changes at tag-20230904a */
# if defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_BIG_ENDIAN__
# define SQLITE_BYTEORDER 4321
# elif defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__
# define SQLITE_BYTEORDER 1234
# elif defined(__BIG_ENDIAN__) && __BIG_ENDIAN__==1
# define SQLITE_BYTEORDER 4321
# elif defined(i386) || defined(__i386__) || defined(_M_IX86) || \
defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \
defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \
defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
# define SQLITE_BYTEORDER 1234
# elif defined(sparc) || defined(__ARMEB__) || defined(__AARCH64EB__)
# define SQLITE_BYTEORDER 4321
# else
# define SQLITE_BYTEORDER 0
# endif
#endif
#if SQLITE_BYTEORDER==4321
# define SQLITE_BIGENDIAN 1
# define SQLITE_LITTLEENDIAN 0
|
| ︙ | ︙ |