1 # James Bigler, NVIDIA Corp (nvidia.com - jbigler)
3 # Copyright (c) 2008 - 2009 NVIDIA Corporation. All rights reserved.
5 # This code is licensed under the MIT License. See the FindCUDA.cmake script
6 # for the text of the license.
10 # License for the specific language governing rights and limitations under
11 # Permission is hereby granted, free of charge, to any person obtaining a
12 # copy of this software and associated documentation files (the "Software"),
13 # to deal in the Software without restriction, including without limitation
14 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 # and/or sell copies of the Software, and to permit persons to whom the
16 # Software is furnished to do so, subject to the following conditions:
18 # The above copyright notice and this permission notice shall be included
19 # in all copies or substantial portions of the Software.
21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 # DEALINGS IN THE SOFTWARE.
30 ##########################################################################
31 # This file runs the nvcc commands to produce the desired output file along with
32 # the dependency file needed by CMake to compute dependencies. In addition the
33 # file checks the output of each command and if the command fails it deletes the
38 # verbose:BOOL=<> OFF: Be as quiet as possible (default)
39 # ON : Describe each step
41 # build_configuration:STRING=<> Typically one of Debug, MinSizeRel, Release, or
42 # RelWithDebInfo, but it should match one of the
43 # entries in CUDA_HOST_FLAGS. This is the build
44 # configuration used when compiling the code. If
45 # blank or unspecified Debug is assumed as this is
48 # generated_file:STRING=<> File to generate. This argument must be passed in.
50 # generated_cubin_file:STRING=<> File to generate. This argument must be passed
51 # in if build_cubin is true.
53 if(NOT generated_file)
54 message(FATAL_ERROR "You must specify generated_file on the command line")
57 # Set these up as variables to make reading the generated file easier
58 set(CMAKE_COMMAND "@CMAKE_COMMAND@") # path
59 set(source_file "@source_file@") # path
60 set(NVCC_generated_dependency_file "@NVCC_generated_dependency_file@") # path
61 set(cmake_dependency_file "@cmake_dependency_file@") # path
62 set(CUDA_make2cmake "@CUDA_make2cmake@") # path
63 set(CUDA_parse_cubin "@CUDA_parse_cubin@") # path
64 set(build_cubin @build_cubin@) # bool
65 set(CUDA_HOST_COMPILER "@CUDA_HOST_COMPILER@") # path
66 # We won't actually use these variables for now, but we need to set this, in
67 # order to force this file to be run again if it changes.
68 set(generated_file_path "@generated_file_path@") # path
69 set(generated_file_internal "@generated_file@") # path
70 set(generated_cubin_file_internal "@generated_cubin_file@") # path
72 set(CUDA_NVCC_EXECUTABLE "@CUDA_NVCC_EXECUTABLE@") # path
73 set(CUDA_NVCC_FLAGS @CUDA_NVCC_FLAGS@ ;; @CUDA_WRAP_OPTION_NVCC_FLAGS@) # list
74 @CUDA_NVCC_FLAGS_CONFIG@
75 set(nvcc_flags @nvcc_flags@) # list
76 set(CUDA_NVCC_INCLUDE_ARGS "@CUDA_NVCC_INCLUDE_ARGS@") # list (needs to be in quotes to handle spaces properly).
77 set(format_flag "@format_flag@") # string
78 set(cuda_language_flag @cuda_language_flag@) # list
80 if(build_cubin AND NOT generated_cubin_file)
81 message(FATAL_ERROR "You must specify generated_cubin_file on the command line")
84 # This is the list of host compilation flags. It C or CXX should already have
85 # been chosen by FindCUDA.cmake.
88 # Take the compiler flags and package them up to be sent to the compiler via -Xcompiler
89 set(nvcc_host_compiler_flags "")
90 # If we weren't given a build_configuration, use Debug.
91 if(NOT build_configuration)
92 set(build_configuration Debug)
94 string(TOUPPER "${build_configuration}" build_configuration)
95 #message("CUDA_NVCC_HOST_COMPILER_FLAGS = ${CUDA_NVCC_HOST_COMPILER_FLAGS}")
96 foreach(flag ${CMAKE_HOST_FLAGS} ${CMAKE_HOST_FLAGS_${build_configuration}})
97 # Extra quotes are added around each flag to help nvcc parse out flags with spaces.
98 set(nvcc_host_compiler_flags "${nvcc_host_compiler_flags},\"${flag}\"")
100 if (nvcc_host_compiler_flags)
101 set(nvcc_host_compiler_flags "-Xcompiler" ${nvcc_host_compiler_flags})
103 #message("nvcc_host_compiler_flags = \"${nvcc_host_compiler_flags}\"")
104 # Add the build specific configuration flags
105 list(APPEND CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS_${build_configuration}})
107 # Any -ccbin existing in CUDA_NVCC_FLAGS gets highest priority
108 list( FIND CUDA_NVCC_FLAGS "-ccbin" ccbin_found0 )
109 list( FIND CUDA_NVCC_FLAGS "--compiler-bindir" ccbin_found1 )
110 if( ccbin_found0 LESS 0 AND ccbin_found1 LESS 0 AND CUDA_HOST_COMPILER )
111 if (CUDA_HOST_COMPILER STREQUAL "$(VCInstallDir)bin" AND DEFINED CCBIN)
112 set(CCBIN -ccbin "${CCBIN}")
114 set(CCBIN -ccbin "${CUDA_HOST_COMPILER}")
118 # cuda_execute_process - Executes a command with optional command echo and status message.
120 # status - Status message to print if verbose is true
121 # command - COMMAND argument from the usual execute_process argument structure
122 # ARGN - Remaining arguments are the command with arguments
124 # CUDA_result - return value from running the command
126 # Make this a macro instead of a function, so that things like RESULT_VARIABLE
127 # and other return variables are present after executing the process.
128 macro(cuda_execute_process status command)
129 set(_command ${command})
130 if(NOT "x${_command}" STREQUAL "xCOMMAND")
131 message(FATAL_ERROR "Malformed call to cuda_execute_process. Missing COMMAND as second argument. (command = ${command})")
134 execute_process(COMMAND "${CMAKE_COMMAND}" -E echo -- ${status})
135 # Now we need to build up our command string. We are accounting for quotes
136 # and spaces, anything else is left up to the user to fix if they want to
137 # copy and paste a runnable command line.
138 set(cuda_execute_process_string)
140 # If there are quotes, excape them, so they come through.
141 string(REPLACE "\"" "\\\"" arg ${arg})
142 # Args with spaces need quotes around them to get them to be parsed as a single argument.
144 list(APPEND cuda_execute_process_string "\"${arg}\"")
146 list(APPEND cuda_execute_process_string ${arg})
150 execute_process(COMMAND ${CMAKE_COMMAND} -E echo ${cuda_execute_process_string})
153 execute_process(COMMAND ${ARGN} RESULT_VARIABLE CUDA_result )
156 # Delete the target file
157 cuda_execute_process(
158 "Removing ${generated_file}"
159 COMMAND "${CMAKE_COMMAND}" -E remove "${generated_file}"
162 # For CUDA 2.3 and below, -G -M doesn't work, so remove the -G flag
163 # for dependency generation and hope for the best.
164 set(depends_CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS}")
165 set(CUDA_VERSION @CUDA_VERSION@)
166 if(CUDA_VERSION VERSION_LESS "3.0")
168 # CMake policy 0007 NEW states that empty list elements are not
169 # ignored. I'm just setting it to avoid the warning that's printed.
170 cmake_policy(SET CMP0007 NEW)
171 # Note that this will remove all occurances of -G.
172 list(REMOVE_ITEM depends_CUDA_NVCC_FLAGS "-G")
176 # nvcc doesn't define __CUDACC__ for some reason when generating dependency files. This
177 # can cause incorrect dependencies when #including files based on this macro which is
178 # defined in the generating passes of nvcc invokation. We will go ahead and manually
179 # define this for now until a future version fixes this bug.
180 set(CUDACC_DEFINE -D__CUDACC__)
182 # Generate the dependency file
183 cuda_execute_process(
184 "Generating dependency file: ${NVCC_generated_dependency_file}"
185 COMMAND "${CUDA_NVCC_EXECUTABLE}"
189 -o "${NVCC_generated_dependency_file}"
192 ${nvcc_host_compiler_flags}
193 ${depends_CUDA_NVCC_FLAGS}
195 ${CUDA_NVCC_INCLUDE_ARGS}
199 message(FATAL_ERROR "Error generating ${generated_file}")
202 # Generate the cmake readable dependency file to a temp file. Don't put the
203 # quotes just around the filenames for the input_file and output_file variables.
204 # CMake will pass the quotes through and not be able to find the file.
205 cuda_execute_process(
206 "Generating temporary cmake readable file: ${cmake_dependency_file}.tmp"
207 COMMAND "${CMAKE_COMMAND}"
208 -D "input_file:FILEPATH=${NVCC_generated_dependency_file}"
209 -D "output_file:FILEPATH=${cmake_dependency_file}.tmp"
210 -P "${CUDA_make2cmake}"
214 message(FATAL_ERROR "Error generating ${generated_file}")
217 # Copy the file if it is different
218 cuda_execute_process(
219 "Copy if different ${cmake_dependency_file}.tmp to ${cmake_dependency_file}"
220 COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${cmake_dependency_file}.tmp" "${cmake_dependency_file}"
224 message(FATAL_ERROR "Error generating ${generated_file}")
227 # Delete the temporary file
228 cuda_execute_process(
229 "Removing ${cmake_dependency_file}.tmp and ${NVCC_generated_dependency_file}"
230 COMMAND "${CMAKE_COMMAND}" -E remove "${cmake_dependency_file}.tmp" "${NVCC_generated_dependency_file}"
234 message(FATAL_ERROR "Error generating ${generated_file}")
238 cuda_execute_process(
239 "Generating ${generated_file}"
240 COMMAND "${CUDA_NVCC_EXECUTABLE}"
242 ${cuda_language_flag}
243 ${format_flag} -o "${generated_file}"
246 ${nvcc_host_compiler_flags}
249 ${CUDA_NVCC_INCLUDE_ARGS}
253 # Since nvcc can sometimes leave half done files make sure that we delete the output file.
254 cuda_execute_process(
255 "Removing ${generated_file}"
256 COMMAND "${CMAKE_COMMAND}" -E remove "${generated_file}"
258 message(FATAL_ERROR "Error generating file ${generated_file}")
261 message("Generated ${generated_file} successfully.")
265 # Cubin resource report commands.
267 # Run with -cubin to produce resource usage report.
268 cuda_execute_process(
269 "Generating ${generated_cubin_file}"
270 COMMAND "${CUDA_NVCC_EXECUTABLE}"
275 ${nvcc_host_compiler_flags}
278 -o "${generated_cubin_file}"
279 ${CUDA_NVCC_INCLUDE_ARGS}
282 # Execute the parser script.
283 cuda_execute_process(
284 "Executing the parser script"
285 COMMAND "${CMAKE_COMMAND}"
286 -D "input_file:STRING=${generated_cubin_file}"
287 -P "${CUDA_parse_cubin}"