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Bug fix: Fast CRC Support printing is not honest 

Summary:
11c5d4741a introduces a bug that IsFastCrc32Supported() returns wrong result. Fix it. Also fix some FB internal scripts.
Closes https://github.com/facebook/rocksdb/pull/2513

Differential Revision: D5343802

Pulled By: yiwu-arbug

fbshipit-source-id: 057dc7ae3b262fe951413d1190ce60afc788cc05
This commit is contained in:
Siying Dong 2017-06-28 21:37:55 -07:00 committed by Facebook Github Bot
parent 397ab11152
commit afbef65187
5 changed files with 8 additions and 8 deletions
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3
TARGETS
View File

@ -11,7 +11,8 @@ rocksdb_compiler_flags = [
"-DROCKSDB_MALLOC_USABLE_SIZE",
"-DROCKSDB_RANGESYNC_PRESENT",
"-DROCKSDB_SCHED_GETCPU_PRESENT",
"-DROCKSDB_SUPPORT_THREAD_LOCAL",
"-DROCKSDB_SUPPORT_THREAD_LOCAL",
"-DHAVE_SSE42",
"-DOS_LINUX",
# Flags to enable libs we include
"-DSNAPPY",

1
buckifier/targets_cfg.py
View File

@ -16,6 +16,7 @@ rocksdb_compiler_flags = [
"-DROCKSDB_RANGESYNC_PRESENT",
"-DROCKSDB_SCHED_GETCPU_PRESENT",
"-DROCKSDB_SUPPORT_THREAD_LOCAL",
"-DHAVE_SSE42",
"-DOS_LINUX",
# Flags to enable libs we include
"-DSNAPPY",

2
build_tools/fbcode_config.sh
View File

@ -128,7 +128,7 @@ else
fi
CFLAGS+=" $DEPS_INCLUDE"
CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_RANGESYNC_PRESENT -DROCKSDB_SCHED_GETCPU_PRESENT -DROCKSDB_SUPPORT_THREAD_LOCAL"
CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_RANGESYNC_PRESENT -DROCKSDB_SCHED_GETCPU_PRESENT -DROCKSDB_SUPPORT_THREAD_LOCAL -DHAVE_SSE42"
CXXFLAGS+=" $CFLAGS"
EXEC_LDFLAGS=" $SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $NUMA_LIB $TBB_LIBS"

2
build_tools/fbcode_config4.8.1.sh
View File

@ -93,7 +93,7 @@ else
fi
CFLAGS+=" $DEPS_INCLUDE"
CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_RANGESYNC_PRESENT -DROCKSDB_SCHED_GETCPU_PRESENT -DROCKSDB_SUPPORT_THREAD_LOCAL"
CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_RANGESYNC_PRESENT -DROCKSDB_SCHED_GETCPU_PRESENT -DROCKSDB_SUPPORT_THREAD_LOCAL -DHAVE_SSE42"
CFLAGS+=" -DSNAPPY -DGFLAGS=google -DZLIB -DBZIP2 -DLZ4 -DZSTD -DNUMA -DTBB"
CXXFLAGS+=" $CFLAGS"

8
util/crc32c.cc
View File

@ -374,7 +374,9 @@ uint32_t ExtendImpl(uint32_t crc, const char* buf, size_t size) {
// Detect if SS42 or not.
static bool isSSE42() {
#if defined(__GNUC__) && defined(__x86_64__) && !defined(IOS_CROSS_COMPILE)
#ifndef HAVE_SSE42
return false;
#elif defined(__GNUC__) && defined(__x86_64__) && !defined(IOS_CROSS_COMPILE)
uint32_t c_;
uint32_t d_;
__asm__("cpuid" : "=c"(c_), "=d"(d_) : "a"(1) : "ebx");
@ -395,11 +397,7 @@ static inline Function Choose_Extend() {
}
bool IsFastCrc32Supported() {
#if defined(__SSE4_2__) || defined(_WIN64)
return isSSE42();
#else
return false;
#endif
}
Function ChosenExtend = Choose_Extend();