Commit bcdd486b authored by Jan Bernlöhr's avatar Jan Bernlöhr Committed by Brad King
Browse files

CUDA: Enable support on QNX

This fixes the following two issues with the CUDA support on QNX:

* cuda target name is not derived correctly (should be `aarch64-qnx`).
* linking `cudart` must not be linked against `rt`, `dl`, `pthread`.

This enables to use cmake's native cuda support on QNX.

Fixes: #21381
parent f506cc6b
......@@ -64,7 +64,7 @@ set(CMAKE_CUDA_RUNTIME_LIBRARY_LINK_OPTIONS_STATIC "cudadevrt;cudart_static")
set(CMAKE_CUDA_RUNTIME_LIBRARY_LINK_OPTIONS_SHARED "cudadevrt;cudart")
set(CMAKE_CUDA_RUNTIME_LIBRARY_LINK_OPTIONS_NONE "")
if(UNIX)
if(UNIX AND NOT (CMAKE_SYSTEM_NAME STREQUAL "QNX"))
list(APPEND CMAKE_CUDA_RUNTIME_LIBRARY_LINK_OPTIONS_STATIC "rt" "pthread" "dl")
endif()
......
......@@ -732,6 +732,8 @@ if(CMAKE_CROSSCOMPILING)
# Support for aarch64 cross compilation
if (ANDROID_ARCH_NAME STREQUAL "arm64")
set(CUDA_TOOLKIT_TARGET_NAME "aarch64-linux-androideabi")
elseif (CMAKE_SYSTEM_NAME STREQUAL "QNX")
set(CUDA_TOOLKIT_TARGET_NAME "aarch64-qnx")
else()
set(CUDA_TOOLKIT_TARGET_NAME "aarch64-linux")
endif (ANDROID_ARCH_NAME STREQUAL "arm64")
......@@ -902,7 +904,7 @@ if(CUDA_USE_STATIC_CUDA_RUNTIME)
find_package(Threads REQUIRED)
set(CMAKE_C_FLAGS ${_cuda_cmake_c_flags})
if(NOT APPLE)
if(NOT APPLE AND NOT (CMAKE_SYSTEM_NAME STREQUAL "QNX"))
#On Linux, you must link against librt when using the static cuda runtime.
find_library(CUDA_rt_LIBRARY rt)
if (NOT CUDA_rt_LIBRARY)
......
......@@ -678,6 +678,8 @@ if(CMAKE_CROSSCOMPILING)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
if(ANDROID_ARCH_NAME STREQUAL "arm64")
set(CUDAToolkit_TARGET_NAME "aarch64-linux-androideabi")
elseif (CMAKE_SYSTEM_NAME STREQUAL "QNX")
set(CUDAToolkit_TARGET_NAME "aarch64-qnx")
else()
set(CUDAToolkit_TARGET_NAME "aarch64-linux")
endif(ANDROID_ARCH_NAME STREQUAL "arm64")
......@@ -860,7 +862,7 @@ if(CUDAToolkit_FOUND)
target_link_libraries(CUDA::cudart_static_deps INTERFACE Threads::Threads ${CMAKE_DL_LIBS})
endif()
if(UNIX AND NOT APPLE)
if(UNIX AND NOT APPLE AND NOT (CMAKE_SYSTEM_NAME STREQUAL "QNX"))
# On Linux, you must link against librt when using the static cuda runtime.
find_library(CUDAToolkit_rt_LIBRARY rt)
mark_as_advanced(CUDAToolkit_rt_LIBRARY)
......
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