Thanks, this looks OK to me. I guess the function ut_crc32_init() will be
made optional separately.
On Thu, Nov 23, 2017 at 1:22 PM, Sergey Vojtovich
revision-id: 14bd406970c9bb18c744a452359aa4505f325b2d (mariadb-10.3.2-67-g14bd406) parent(s): f28af027a0439d760c6d26eb67a932e97eb665d7 committer: Sergey Vojtovich timestamp: 2017-11-23 15:22:10 +0400 message:
Less code to depend on ut_crc32_init()
--- storage/innobase/include/ut0crc32.h | 1 + storage/innobase/ut/ut0crc32.cc | 20 +++++++------------- 2 files changed, 8 insertions(+), 13 deletions(-)
diff --git a/storage/innobase/include/ut0crc32.h b/storage/innobase/include/ut0crc32.h index 527a3e81..32ad066 100644 --- a/storage/innobase/include/ut0crc32.h +++ b/storage/innobase/include/ut0crc32.h @@ -51,6 +51,7 @@ extern ut_crc32_func_t ut_crc32; when converting byte strings to integers internally. */ extern uint32_t ut_crc32_legacy_big_endian(const byte* buf, ulint len);
+/** Text description of CRC32 implementation */ extern const char* ut_crc32_implementation;
#endif /* ut0crc32_h */ diff --git a/storage/innobase/ut/ut0crc32.cc b/storage/innobase/ut/ ut0crc32.cc index 36c52b7..48f6b82 100644 --- a/storage/innobase/ut/ut0crc32.cc +++ b/storage/innobase/ut/ut0crc32.cc @@ -86,12 +86,6 @@ mysys/my_perf.c, contributed by Facebook under the following license. #include "univ.i" #include "ut0crc32.h"
-/** Pointer to CRC32 calculation function. */ -ut_crc32_func_t ut_crc32; - -/** Text description of CRC32 implementation */ -const char* ut_crc32_implementation; - /** Swap the byte order of an 8 byte integer. @param[in] i 8-byte integer @return 8-byte integer */ @@ -125,6 +119,13 @@ ut_crc32_power8( { return crc32c_vpmsum(0, buf, len); } + +ut_crc32_func_t ut_crc32 = ut_crc32_power8; +const char* ut_crc32_implementation = "Using POWER8 crc32 instructions"; +#else +uint32_t ut_crc32_sw(const byte* buf, ulint len); +ut_crc32_func_t ut_crc32 = ut_crc32_sw; +const char* ut_crc32_implementation = "Using generic crc32 instructions"; #endif
#if defined(__GNUC__) && defined(__x86_64__) @@ -568,8 +569,6 @@ ut_crc32_init() /*===========*/ { ut_crc32_slice8_table_init(); - ut_crc32 = ut_crc32_sw; - ut_crc32_implementation = "Using generic crc32 instructions";
#if defined(__GNUC__) && defined(__x86_64__) uint32_t vend[3]; @@ -603,10 +602,5 @@ ut_crc32_init() ut_crc32 = ut_crc32_hw; ut_crc32_implementation = "Using SSE2 crc32 instructions"; } - -#elif defined(HAVE_CRC32_VPMSUM) - ut_crc32 = ut_crc32_power8; - ut_crc32_implementation = "Using POWER8 crc32 instructions"; #endif - } _______________________________________________ commits mailing list commits@mariadb.org https://lists.askmonty.org/cgi-bin/mailman/listinfo/commits
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