Initial version of FindCUDA script. Still needs documentation formatting.

3 files changed, 408 insertions, 0 deletions

diff --git a/Modules/FindCUDA/make2cmake.cmake b/Modules/FindCUDA/make2cmake.cmake
new file mode 100644
index 0000000..24d2f9f
--- /dev/null
+++ b/Modules/FindCUDA/make2cmake.cmake
@@ -0,0 +1,74 @@
+

+#  For more information, please see: http://software.sci.utah.edu

+#

+#  The MIT License

+#

+#  Copyright (c) 2007

+#  Scientific Computing and Imaging Institute, University of Utah

+#

+#  License for the specific language governing rights and limitations under

+#  Permission is hereby granted, free of charge, to any person obtaining a

+#  copy of this software and associated documentation files (the "Software"),

+#  to deal in the Software without restriction, including without limitation

+#  the rights to use, copy, modify, merge, publish, distribute, sublicense,

+#  and/or sell copies of the Software, and to permit persons to whom the

+#  Software is furnished to do so, subject to the following conditions:

+#

+#  The above copyright notice and this permission notice shall be included

+#  in all copies or substantial portions of the Software.

+#

+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+#  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

+#  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

+#  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

+#  DEALINGS IN THE SOFTWARE.

+

+# Make2cmake CMake Script

+# Abe Stephens and James Bigler

+# (c) 2007 Scientific Computing and Imaging Institute, University of Utah

+# Note that the REGEX expressions may need to be tweaked for different dependency generators.

+

+file(READ ${input_file} depend_text)

+

+if (${depend_text} MATCHES ".+")

+

+  # message("FOUND DEPENDS")

+

+  # Remember, four backslashes is escaped to one backslash in the string.

+  string(REGEX REPLACE "\\\\ " " " depend_text ${depend_text})

+

+  # This works for the nvcc -M generated dependency files.

+  string(REGEX REPLACE "^.* : " "" depend_text ${depend_text})

+  string(REGEX REPLACE "[ \\\\]*\n" ";" depend_text ${depend_text})

+

+  set(dependency_list "")

+

+  foreach(file ${depend_text})

+

+    string(REGEX REPLACE "^ +" "" file ${file})

+

+    if(NOT IS_DIRECTORY ${file})

+      # If softlinks start to matter, we should change this to REALPATH.  For now we need

+      # to flatten paths, because nvcc can generate stuff like /bin/../include instead of

+      # just /include.

+      get_filename_component(file_absolute "${file}" ABSOLUTE)

+      list(APPEND dependency_list "${file_absolute}")

+    endif(NOT IS_DIRECTORY ${file})

+

+  endforeach(file)

+

+else()

+  # message("FOUND NO DEPENDS")

+endif()

+

+# Remove the duplicate entries and sort them.

+list(REMOVE_DUPLICATES dependency_list)

+list(SORT dependency_list)

+

+foreach(file ${dependency_list})

+  set(cuda_nvcc_depend "${cuda_nvcc_depend} \"${file}\"\n")

+endforeach()

+

+file(WRITE ${output_file} "# Generated by: make2cmake.cmake\nSET(CUDA_NVCC_DEPEND\n ${cuda_nvcc_depend})\n\n")

diff --git a/Modules/FindCUDA/parse_cubin.cmake b/Modules/FindCUDA/parse_cubin.cmake
new file mode 100644
index 0000000..1367d61
--- /dev/null
+++ b/Modules/FindCUDA/parse_cubin.cmake
@@ -0,0 +1,105 @@
+#  For more information, please see: http://software.sci.utah.edu
+#
+#  The MIT License
+#
+#  Copyright (c) 2007
+#  Scientific Computing and Imaging Institute, University of Utah
+#
+#  License for the specific language governing rights and limitations under
+#  Permission is hereby granted, free of charge, to any person obtaining a
+#  copy of this software and associated documentation files (the "Software"),
+#  to deal in the Software without restriction, including without limitation
+#  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#  and/or sell copies of the Software, and to permit persons to whom the
+#  Software is furnished to do so, subject to the following conditions:
+#
+#  The above copyright notice and this permission notice shall be included
+#  in all copies or substantial portions of the Software.
+#
+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+#  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+#  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#  DEALINGS IN THE SOFTWARE.
+
+# .cubin Parsing CMake Script
+# Abe Stephens
+# (c) 2007 Scientific Computing and Imaging Institute, University of Utah
+
+file(READ ${input_file} file_text)
+
+if (${file_text} MATCHES ".+")
+
+  # Remember, four backslashes is escaped to one backslash in the string.
+  string(REGEX REPLACE ";" "\\\\;" file_text ${file_text})
+  string(REGEX REPLACE "\ncode" ";code" file_text ${file_text})
+
+  list(LENGTH file_text len)
+
+  foreach(line ${file_text})
+
+    # Only look at "code { }" blocks.
+    if(line MATCHES "^code")
+
+      # Break into individual lines.
+      string(REGEX REPLACE "\n" ";" line ${line})
+
+      foreach(entry ${line})
+
+        # Extract kernel names.
+        if (${entry} MATCHES "[^g]name = ([^ ]+)")
+          string(REGEX REPLACE ".* = ([^ ]+)" "\\1" entry ${entry})
+
+          # Check to see if the kernel name starts with "_"
+          set(skip FALSE)
+          # if (${entry} MATCHES "^_")
+            # Skip the rest of this block.
+            # message("Skipping ${entry}")
+            # set(skip TRUE)
+          # else (${entry} MATCHES "^_")
+            message("Kernel:    ${entry}")
+          # endif (${entry} MATCHES "^_")
+
+        endif(${entry} MATCHES "[^g]name = ([^ ]+)")
+
+        # Skip the rest of the block if necessary
+        if(NOT skip)
+
+          # Registers
+          if (${entry} MATCHES "reg([ ]+)=([ ]+)([^ ]+)")
+            string(REGEX REPLACE ".*([ ]+)=([ ]+)([^ ]+)" "\\3" entry ${entry})
+            message("Registers: ${entry}")
+          endif()
+
+          # Local memory
+          if (${entry} MATCHES "lmem([ ]+)=([ ]+)([^ ]+)")
+            string(REGEX REPLACE ".*([ ]+)=([ ]+)([^ ]+)" "\\3" entry ${entry})
+            message("Local:     ${entry}")
+          endif()
+
+          # Shared memory
+          if (${entry} MATCHES "smem([ ]+)=([ ]+)([^ ]+)")
+            string(REGEX REPLACE ".*([ ]+)=([ ]+)([^ ]+)" "\\3" entry ${entry})
+            message("Shared:    ${entry}")
+          endif()
+
+          if (${entry} MATCHES "^}")
+            message("")
+          endif()
+
+        endif(NOT skip)
+
+
+      endforeach(entry)
+
+    endif(line MATCHES "^code")
+
+  endforeach(line)
+
+else()
+  # message("FOUND NO DEPENDS")
+endif()
+
+
diff --git a/Modules/FindCUDA/run_nvcc.cmake b/Modules/FindCUDA/run_nvcc.cmake
new file mode 100644
index 0000000..31b9664
--- /dev/null
+++ b/Modules/FindCUDA/run_nvcc.cmake
@@ -0,0 +1,229 @@
+# This file runs the nvcc commands to produce the desired output file along with

+# the dependency file needed by CMake to compute dependencies.  In addition the

+# file checks the output of each command and if the command fails it deletes the

+# output files.

+

+# Input variables

+#

+# verbose:BOOL=<>          OFF: Be as quiet as possible (default)

+#                          ON : Describe each step

+#

+# build_configuration:STRING=<> Typically one of Debug, MinSizeRel, Release, or

+#                               RelWithDebInfo, but it should match one of the

+#                               entries in CUDA_HOST_FLAGS. This is the build

+#                               configuration used when compiling the code.  If

+#                               blank or unspecified Debug is assumed as this is

+#                               what CMake does.

+#

+# generated_file:STRING=<> File to generate.  This argument must be passed in.

+#

+# generated_cubin_file:STRING=<> File to generate.  This argument must be passed

+#                                                   in if build_cubin is true.

+

+if(NOT generated_file)

+  message(FATAL_ERROR "You must specify generated_file on the command line")

+endif()

+

+# Set these up as variables to make reading the generated file easier

+set(CMAKE_COMMAND "@CMAKE_COMMAND@")

+set(source_file "@source_file@")

+set(NVCC_generated_dependency_file "@NVCC_generated_dependency_file@")

+set(cmake_dependency_file "@cmake_dependency_file@")

+set(CUDA_make2cmake "@CUDA_make2cmake@")

+set(CUDA_parse_cubin "@CUDA_parse_cubin@")

+set(build_cubin @build_cubin@)

+# We won't actually use these variables for now, but we need to set this, in

+# order to force this file to be run again if it changes.

+set(generated_file_path "@generated_file_path@")

+set(generated_file_internal "@generated_file@")

+set(generated_cubin_file_internal "@generated_cubin_file@")

+

+set(CUDA_NVCC_EXECUTABLE "@CUDA_NVCC_EXECUTABLE@")

+set(CUDA_NVCC_FLAGS "@CUDA_NVCC_FLAGS@;;@CUDA_WRAP_OPTION_NVCC_FLAGS@")

+@CUDA_NVCC_FLAGS_CONFIG@

+set(nvcc_flags "@nvcc_flags@")

+set(CUDA_NVCC_INCLUDE_ARGS "@CUDA_NVCC_INCLUDE_ARGS@")

+set(format_flag "@format_flag@")

+

+if(build_cubin AND NOT generated_cubin_file)

+  message(FATAL_ERROR "You must specify generated_cubin_file on the command line")

+endif()

+

+# This is the list of host compilation flags.  It C or CXX should already have

+# been chosen by FindCUDA.cmake.

+@CUDA_HOST_FLAGS@

+

+# Take the compiler flags and package them up to be sent to the compiler via -Xcompiler

+set(nvcc_host_compiler_flags "")

+# If we weren't given a build_configuration, use Debug.

+if(NOT build_configuration)

+  set(build_configuration Debug)

+endif()

+string(TOUPPER "${build_configuration}" build_configuration)

+#message("CUDA_NVCC_HOST_COMPILER_FLAGS = ${CUDA_NVCC_HOST_COMPILER_FLAGS}")

+foreach(flag ${CMAKE_HOST_FLAGS} ${CMAKE_HOST_FLAGS_${build_configuration}})

+  # Extra quotes are added around each flag to help nvcc parse out flags with spaces.

+  set(nvcc_host_compiler_flags "${nvcc_host_compiler_flags},\"${flag}\"")

+endforeach()

+if (nvcc_host_compiler_flags)

+  set(nvcc_host_compiler_flags "-Xcompiler" ${nvcc_host_compiler_flags})

+endif()

+#message("nvcc_host_compiler_flags = \"${nvcc_host_compiler_flags}\"")

+# Add the build specific configuration flags

+list(APPEND CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS_${build_configuration}})

+

+if(DEFINED CCBIN)

+  set(CCBIN -ccbin "${CCBIN}")

+endif()

+

+# cuda_execute_process - Executes a command with optional command echo and status message.

+#

+#   status  - Status message to print if verbose is true

+#   command - COMMAND argument from the usual execute_process argument structure

+#   ARGN    - Remaining arguments are the command with arguments

+#

+#   CUDA_result - return value from running the command

+#

+# Make this a macro instead of a function, so that things like RESULT_VARIABLE

+# and other return variables are present after executing the process.

+macro(cuda_execute_process status command)

+  set(_command ${command})

+  if(NOT _command STREQUAL "COMMAND")

+    message(FATAL_ERROR "Malformed call to cuda_execute_process.  Missing COMMAND as second argument. (command = ${command})")

+  endif()

+  if(verbose)

+    execute_process(COMMAND "${CMAKE_COMMAND}" -E echo -- ${status})

+    # Now we need to build up our command string.  We are accounting for quotes

+    # and spaces, anything else is left up to the user to fix if they want to

+    # copy and paste a runnable command line.

+    set(cuda_execute_process_string)

+    foreach(arg ${ARGN})

+      # If there are quotes, excape them, so they come through.

+      string(REPLACE "\"" "\\\"" arg ${arg})

+      # Args with spaces need quotes around them to get them to be parsed as a single argument.

+      if(arg MATCHES " ")

+        list(APPEND cuda_execute_process_string "\"${arg}\"")

+      else()

+        list(APPEND cuda_execute_process_string ${arg})

+      endif()

+    endforeach()

+    # Echo the command

+    execute_process(COMMAND ${CMAKE_COMMAND} -E echo ${cuda_execute_process_string})

+  endif(verbose)

+  # Run the command

+  execute_process(COMMAND ${ARGN} RESULT_VARIABLE CUDA_result )

+endmacro()

+

+# Delete the target file

+cuda_execute_process(

+  "Removing ${generated_file}"

+  COMMAND "${CMAKE_COMMAND}" -E remove "${generated_file}"

+  )

+

+# Generate the dependency file

+cuda_execute_process(

+  "Generating dependency file: ${NVCC_generated_dependency_file}"

+  COMMAND "${CUDA_NVCC_EXECUTABLE}"

+  "${source_file}"

+  ${CUDA_NVCC_FLAGS}

+  ${nvcc_flags}

+  ${CCBIN}

+  ${nvcc_host_compiler_flags}

+  -DNVCC

+  -M

+  -o "${NVCC_generated_dependency_file}"

+  ${CUDA_NVCC_INCLUDE_ARGS}

+  )

+

+if(CUDA_result)

+  message(FATAL_ERROR "Error generating ${generated_file}")

+endif()

+

+# Generate the cmake readable dependency file to a temp file.  Don't put the

+# quotes just around the filenames for the input_file and output_file variables.

+# CMake will pass the quotes through and not be able to find the file.

+cuda_execute_process(

+  "Generating temporary cmake readable file: ${cmake_dependency_file}.tmp"

+  COMMAND "${CMAKE_COMMAND}"

+  -D "input_file:FILEPATH=${NVCC_generated_dependency_file}"

+  -D "output_file:FILEPATH=${cmake_dependency_file}.tmp"

+  -P "${CUDA_make2cmake}"

+  )

+

+if(CUDA_result)

+  message(FATAL_ERROR "Error generating ${generated_file}")

+endif()

+

+# Copy the file if it is different

+cuda_execute_process(

+  "Copy if different ${cmake_dependency_file}.tmp to ${cmake_dependency_file}"

+  COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${cmake_dependency_file}.tmp" "${cmake_dependency_file}"

+  )

+

+if(CUDA_result)

+  message(FATAL_ERROR "Error generating ${generated_file}")

+endif()

+

+# Delete the temporary file

+cuda_execute_process(

+  "Removing ${cmake_dependency_file}.tmp and ${NVCC_generated_dependency_file}"

+  COMMAND "${CMAKE_COMMAND}" -E remove "${cmake_dependency_file}.tmp" "${NVCC_generated_dependency_file}"

+  )

+

+if(CUDA_result)

+  message(FATAL_ERROR "Error generating ${generated_file}")

+endif()

+

+# Generate the code

+cuda_execute_process(

+  "Generating ${generated_file}"

+  COMMAND "${CUDA_NVCC_EXECUTABLE}"

+  "${source_file}"

+  ${CUDA_NVCC_FLAGS}

+  ${nvcc_flags}

+  ${CCBIN}

+  ${nvcc_host_compiler_flags}

+  -DNVCC

+  ${format_flag} -o "${generated_file}"

+  ${CUDA_NVCC_INCLUDE_ARGS}

+  )

+

+if(CUDA_result)

+  # Since nvcc can sometimes leave half done files make sure that we delete the output file.

+  cuda_execute_process(

+    "Removing ${generated_file}"

+    COMMAND "${CMAKE_COMMAND}" -E remove "${generated_file}"

+    )

+  message(FATAL_ERROR "Error generating file ${generated_file}")

+else()

+  if(verbose)

+    message("Generated ${generated_file} successfully.")

+  endif()

+endif()

+

+# Cubin resource report commands.

+if( build_cubin )

+  # Run with -cubin to produce resource usage report.

+  cuda_execute_process(

+    "Generating ${generated_cubin_file}"

+    COMMAND "${CUDA_NVCC_EXECUTABLE}"

+    "${source_file}"

+    ${CUDA_NVCC_FLAGS}

+    ${nvcc_flags}

+    ${CCBIN}

+    ${nvcc_host_compiler_flags}

+    -DNVCC

+    -cubin

+    -o "${generated_cubin_file}"

+    ${CUDA_NVCC_INCLUDE_ARGS}

+    )

+

+  # Execute the parser script.

+  cuda_execute_process(

+    "Executing the parser script"

+    COMMAND  "${CMAKE_COMMAND}"

+    -D "input_file:STRING=${generated_cubin_file}"

+    -P "${CUDA_parse_cubin}"

+    )

+

+endif( build_cubin )