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CUDA: forward unknown flags to host compiler when possible.

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Starting with CUDA 10.2 the nvcc compiler has gained support
to automatically forward unknown flags to the host compiler.

This behavior is highly desired as projcts that mix CUDA, C, C++
run into situation where flags such as `-pthread` which aren't
supported by nvcc, are being applied to all source files and
therefore break CUDA compilation.
This commit is contained in:
Robert Maynard
2019-11-29 11:16:21 -05:00
parent ca2a3929c2
commit 7f15c99851
3 changed files with 29 additions and 28 deletions
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24
Modules/CMakeCUDAInformation.cmake
View File

@@ -93,9 +93,7 @@ include(CMakeCommonLanguageInclude)
# CMAKE_CUDA_LINK_EXECUTABLE
if(CMAKE_CUDA_HOST_COMPILER)
set(CMAKE_CUDA_HOST_FLAGS "-ccbin=<CMAKE_CUDA_HOST_COMPILER>")
else()
set(CMAKE_CUDA_HOST_FLAGS "")
string(APPEND _CMAKE_CUDA_EXTRA_FLAGS " -ccbin=<CMAKE_CUDA_HOST_COMPILER>")
endif()
set(__IMPLICT_LINKS )
@@ -135,24 +133,24 @@ endif()
#Specify how to compile when ptx has been requested
if(NOT CMAKE_CUDA_COMPILE_PTX_COMPILATION)
set(CMAKE_CUDA_COMPILE_PTX_COMPILATION
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -ptx <SOURCE> -o <OBJECT>")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -ptx <SOURCE> -o <OBJECT>")
endif()
#Specify how to compile when separable compilation has been requested
if(NOT CMAKE_CUDA_COMPILE_SEPARABLE_COMPILATION)
set(CMAKE_CUDA_COMPILE_SEPARABLE_COMPILATION
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -dc <SOURCE> -o <OBJECT>")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -dc <SOURCE> -o <OBJECT>")
endif()
#Specify how to compile when whole compilation has been requested
if(NOT CMAKE_CUDA_COMPILE_WHOLE_COMPILATION)
set(CMAKE_CUDA_COMPILE_WHOLE_COMPILATION
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -c <SOURCE> -o <OBJECT>")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -c <SOURCE> -o <OBJECT>")
endif()
if(CMAKE_GENERATOR STREQUAL "Ninja")
set(CMAKE_CUDA_COMPILE_DEPENDENCY_DETECTION
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -M <SOURCE> -MT <OBJECT> -o $DEP_FILE")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -M <SOURCE> -MT <OBJECT> -o $DEP_FILE")
#The Ninja generator uses the make file dependency files to determine what
#files need to be recompiled. Unfortunately, nvcc doesn't support building
#a source file and generating the dependencies of said file in a single
@@ -171,13 +169,6 @@ if(NOT CMAKE_CUDA_LINK_EXECUTABLE)
"<CMAKE_CUDA_HOST_LINK_LAUNCHER> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICT_LINKS}")
endif()
if( CMAKE_CUDA_COMPILER_ID STREQUAL "NVIDIA" AND
CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL "8.0.0")
set(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS "-Wno-deprecated-gpu-targets")
else()
set(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS "")
endif()
# Add implicit host link directories that contain device libraries
# to the device link line.
set(__IMPLICT_DLINK_DIRS ${CMAKE_CUDA_IMPLICIT_LINK_DIRECTORIES})
@@ -192,14 +183,15 @@ foreach(dir ${__IMPLICT_DLINK_DIRS})
endforeach()
unset(__IMPLICT_DLINK_DIRS)
#These are used when linking relocatable (dc) cuda code
if(NOT CMAKE_CUDA_DEVICE_LINK_LIBRARY)
set(CMAKE_CUDA_DEVICE_LINK_LIBRARY
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <LANGUAGE_COMPILE_FLAGS> ${CMAKE_CUDA_COMPILE_OPTIONS_PIC} ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICT_DLINK_FLAGS}")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <LANGUAGE_COMPILE_FLAGS> ${CMAKE_CUDA_COMPILE_OPTIONS_PIC} ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICT_DLINK_FLAGS}")
endif()
if(NOT CMAKE_CUDA_DEVICE_LINK_EXECUTABLE)
set(CMAKE_CUDA_DEVICE_LINK_EXECUTABLE
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <FLAGS> ${CMAKE_CUDA_COMPILE_OPTIONS_PIC} ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICT_DLINK_FLAGS}")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <FLAGS> ${CMAKE_CUDA_COMPILE_OPTIONS_PIC} ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES>${__IMPLICT_DLINK_FLAGS}")
endif()
unset(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS)

16
Modules/Compiler/NVIDIA-CUDA.cmake
View File

@@ -2,6 +2,22 @@ set(CMAKE_CUDA_COMPILER_HAS_DEVICE_LINK_PHASE True)
set(CMAKE_CUDA_VERBOSE_FLAG "-v")
set(CMAKE_CUDA_VERBOSE_COMPILE_FLAG "-Xcompiler=-v")
if (NOT CMAKE_CUDA_COMPILER_VERSION VERSION_LESS 10.2)
# The -forward-unknown-to-host-compiler flag was only
# added to nvcc in 10.2 so before that we had no good
# way to invoke the CUDA compiler and propagate unknown
# flags such as -pthread to the host compiler
set(_CMAKE_CUDA_EXTRA_FLAGS "-forward-unknown-to-host-compiler")
else()
set(_CMAKE_CUDA_EXTRA_FLAGS "")
endif()
if(CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL "8.0.0")
set(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS "-Wno-deprecated-gpu-targets")
else()
set(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS "")
endif()
if(NOT "x${CMAKE_CUDA_SIMULATE_ID}" STREQUAL "xMSVC")
set(CMAKE_CUDA_COMPILE_OPTIONS_PIE -Xcompiler=-fPIE)
set(CMAKE_CUDA_COMPILE_OPTIONS_PIC -Xcompiler=-fPIC)

17
Modules/Platform/Windows-NVIDIA-CUDA.cmake
View File

@@ -1,11 +1,11 @@
include(Platform/Windows-MSVC)
set(CMAKE_CUDA_COMPILE_PTX_COMPILATION
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -ptx <SOURCE> -o <OBJECT> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -ptx <SOURCE> -o <OBJECT> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS")
set(CMAKE_CUDA_COMPILE_SEPARABLE_COMPILATION
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -dc <SOURCE> -o <OBJECT> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -dc <SOURCE> -o <OBJECT> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS")
set(CMAKE_CUDA_COMPILE_WHOLE_COMPILATION
"<CMAKE_CUDA_COMPILER> ${CMAKE_CUDA_HOST_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -c <SOURCE> -o <OBJECT> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <DEFINES> <INCLUDES> <FLAGS> -x cu -c <SOURCE> -o <OBJECT> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS")
set(__IMPLICT_LINKS )
foreach(dir ${CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES})
@@ -30,11 +30,6 @@ set(CMAKE_CUDA_LINK_EXECUTABLE
unset(_CMAKE_VS_LINK_EXE)
unset(_CMAKE_VS_LINK_EXE)
if(CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL "8.0.0")
set(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS "-Wno-deprecated-gpu-targets")
else()
set(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS "")
endif()
# Add implicit host link directories that contain device libraries
# to the device link line.
@@ -51,11 +46,9 @@ endforeach()
unset(__IMPLICT_DLINK_DIRS)
set(CMAKE_CUDA_DEVICE_LINK_LIBRARY
"<CMAKE_CUDA_COMPILER> <LANGUAGE_COMPILE_FLAGS> ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS${__IMPLICT_DLINK_FLAGS}")
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <LANGUAGE_COMPILE_FLAGS> ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS${__IMPLICT_DLINK_FLAGS}")
set(CMAKE_CUDA_DEVICE_LINK_EXECUTABLE
"<CMAKE_CUDA_COMPILER> <FLAGS> ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS${__IMPLICT_DLINK_FLAGS}")
unset(_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS)
"<CMAKE_CUDA_COMPILER> ${_CMAKE_CUDA_EXTRA_FLAGS} <FLAGS> ${_CMAKE_CUDA_EXTRA_DEVICE_LINK_FLAGS} -shared -dlink <OBJECTS> -o <TARGET> <LINK_LIBRARIES> -Xcompiler=-Fd<TARGET_COMPILE_PDB>,-FS${__IMPLICT_DLINK_FLAGS}")
unset(__IMPLICT_DLINK_FLAGS)
string(REPLACE "/D" "-D" _PLATFORM_DEFINES_CUDA "${_PLATFORM_DEFINES}${_PLATFORM_DEFINES_CXX}")