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| author | Tom Tsou <tom.tsou@ettus.com> | 2017-07-26 12:01:06 -0700 |
|---|---|---|
| committer | Martin Braun <martin.braun@ettus.com> | 2017-07-26 17:24:09 -0700 |
| commit | c98f155209c59d677cb88b54ed7707b3f5daf2d5 (patch) | |
| tree | ce9a4acdf996c0c275e3d60421fdd552528d98b3 | |
| parent | 0e9f204029e5eac51d94f16ceb19f003e3faf7e8 (diff) | |
| download | uhd-c98f155209c59d677cb88b54ed7707b3f5daf2d5.tar.gz uhd-c98f155209c59d677cb88b54ed7707b3f5daf2d5.tar.bz2 uhd-c98f155209c59d677cb88b54ed7707b3f5daf2d5.zip | |
build: Enable SSSE3 sc12 converters by build switch only
The existence of SSSE3 intrinsic headers is not a sufficient
condition that SSSE3 support is available, which may lead to
'illegal instruction' runtime failuire on some platforms. Major
OS distributions (Ubuntu, Fedora, etc.) include x86_64
intrinsic headers, though the underlying architecture may or
may not support the instruction set.
Assuming SSE2 availability is safe as instructions are present on
all x86_64 architectures for which instrinsic headers would be
present. The same cannot be said for SSSE3.
Issue: #1761
| -rw-r--r-- | host/lib/convert/CMakeLists.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/host/lib/convert/CMakeLists.txt b/host/lib/convert/CMakeLists.txt index cfd3c7f34..786b4f42f 100644 --- a/host/lib/convert/CMakeLists.txt +++ b/host/lib/convert/CMakeLists.txt @@ -35,9 +35,11 @@ SET(CMAKE_REQUIRED_FLAGS ${EMMINTRIN_FLAGS}) CHECK_INCLUDE_FILE_CXX(emmintrin.h HAVE_EMMINTRIN_H) SET(CMAKE_REQUIRED_FLAGS) +IF(ENABLE_SSSE3) SET(CMAKE_REQUIRED_FLAGS ${TMMINTRIN_FLAGS}) CHECK_INCLUDE_FILE_CXX(tmmintrin.h HAVE_TMMINTRIN_H) SET(CMAKE_REQUIRED_FLAGS) +ENDIF(ENABLE_SSSE3) IF(HAVE_EMMINTRIN_H) SET(convert_with_sse2_sources |