Updates will be applied on October 27th between 12pm - 12:45pm EDT (UTC-0400). Gitlab may be slow during the maintenance window.

CMakeIOSInstallCombined.cmake 9.79 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

#=============================================================================
# Copyright 2014-2015 Ruslan Baratov, Gregor Jasny
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
#  License text for the above reference.)

# Function to print messages of this module
function(_ios_install_combined_message)
  message("[iOS combined] " ${ARGN})
endfunction()

# Get build settings for the current target/config/SDK by running
# `xcodebuild -sdk ... -showBuildSettings` and parsing it's output
function(_ios_install_combined_get_build_setting sdk variable resultvar)
  if("${sdk}" STREQUAL "")
    message(FATAL_ERROR "`sdk` is empty")
  endif()

  if("${variable}" STREQUAL "")
    message(FATAL_ERROR "`variable` is empty")
  endif()

  if("${resultvar}" STREQUAL "")
    message(FATAL_ERROR "`resultvar` is empty")
  endif()

  set(
      cmd
      xcodebuild -showBuildSettings
      -sdk "${sdk}"
      -target "${CURRENT_TARGET}"
      -config "${CURRENT_CONFIG}"
  )

  execute_process(
      COMMAND ${cmd}
      WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
      RESULT_VARIABLE result
      OUTPUT_VARIABLE output
  )

  if(NOT result EQUAL 0)
    message(FATAL_ERROR "Command failed (${result}): ${cmd}")
  endif()

  if(NOT output MATCHES " ${variable} = ([^\n]*)")
55
56
57
58
59
60
61
62
    if("${variable}" STREQUAL "VALID_ARCHS")
      # VALID_ARCHS may be unset by user for given SDK
      # (e.g. for build without simulator).
      set("${resultvar}" "" PARENT_SCOPE)
      return()
    else()
      message(FATAL_ERROR "${variable} not found.")
    endif()
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
  endif()

  set("${resultvar}" "${CMAKE_MATCH_1}" PARENT_SCOPE)
endfunction()

# Get architectures of given SDK (iphonesimulator/iphoneos)
function(_ios_install_combined_get_valid_archs sdk resultvar)
  cmake_policy(SET CMP0007 NEW)

  if("${resultvar}" STREQUAL "")
    message(FATAL_ERROR "`resultvar` is empty")
  endif()

  _ios_install_combined_get_build_setting("${sdk}" "VALID_ARCHS" valid_archs)

  separate_arguments(valid_archs)
  list(REMOVE_ITEM valid_archs "") # remove empty elements
  list(REMOVE_DUPLICATES valid_archs)

82
83
84
  string(REPLACE ";" " " printable "${valid_archs}")
  _ios_install_combined_message("Architectures (${sdk}): ${printable}")

85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
  set("${resultvar}" "${valid_archs}" PARENT_SCOPE)
endfunction()

# Final target can contain more architectures that specified by SDK. This
# function will run 'lipo -info' and parse output. Result will be returned
# as a CMake list.
function(_ios_install_combined_get_real_archs filename resultvar)
  set(cmd "${_lipo_path}" -info "${filename}")
  execute_process(
      COMMAND ${cmd}
      RESULT_VARIABLE result
      OUTPUT_VARIABLE output
      ERROR_VARIABLE output
      OUTPUT_STRIP_TRAILING_WHITESPACE
      ERROR_STRIP_TRAILING_WHITESPACE
  )
  if(NOT result EQUAL 0)
    message(
        FATAL_ERROR "Command failed (${result}): ${cmd}\n\nOutput:\n${output}"
    )
  endif()

  if(NOT output MATCHES "(Architectures in the fat file: [^\n]+ are|Non-fat file: [^\n]+ is architecture): ([^\n]*)")
    message(FATAL_ERROR "Could not detect architecture from: ${output}")
  endif()

  separate_arguments(CMAKE_MATCH_2)
  set(${resultvar} ${CMAKE_MATCH_2} PARENT_SCOPE)
endfunction()

# Run build command for the given SDK
function(_ios_install_combined_build sdk)
  if("${sdk}" STREQUAL "")
    message(FATAL_ERROR "`sdk` is empty")
  endif()

  _ios_install_combined_message("Build `${CURRENT_TARGET}` for `${sdk}`")

  execute_process(
      COMMAND
      "${CMAKE_COMMAND}"
      --build
      .
      --target "${CURRENT_TARGET}"
      --config ${CURRENT_CONFIG}
      --
      -sdk "${sdk}"
      WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
      RESULT_VARIABLE result
  )

  if(NOT result EQUAL 0)
    message(FATAL_ERROR "Build failed")
  endif()
endfunction()

# Remove given architecture from file. This step needed only in rare cases
# when target was built in "unusual" way. Emit warning message.
function(_ios_install_combined_remove_arch lib arch)
  _ios_install_combined_message(
    "Warning! Unexpected architecture `${arch}` detected and will be removed "
    "from file `${lib}`")
  set(cmd "${_lipo_path}" -remove ${arch} -output ${lib} ${lib})
  execute_process(
      COMMAND ${cmd}
      RESULT_VARIABLE result
      OUTPUT_VARIABLE output
      ERROR_VARIABLE output
      OUTPUT_STRIP_TRAILING_WHITESPACE
      ERROR_STRIP_TRAILING_WHITESPACE
  )
  if(NOT result EQUAL 0)
    message(
        FATAL_ERROR "Command failed (${result}): ${cmd}\n\nOutput:\n${output}"
    )
  endif()
endfunction()

# Check that 'lib' contains only 'archs' architectures (remove others).
function(_ios_install_combined_keep_archs lib archs)
  _ios_install_combined_get_real_archs("${lib}" real_archs)
  set(archs_to_remove ${real_archs})
  list(REMOVE_ITEM archs_to_remove ${archs})
  foreach(x ${archs_to_remove})
    _ios_install_combined_remove_arch("${lib}" "${x}")
  endforeach()
endfunction()

function(_ios_install_combined_detect_sdks this_sdk_var corr_sdk_var)
  cmake_policy(SET CMP0057 NEW)

  set(this_sdk "$ENV{PLATFORM_NAME}")
  if("${this_sdk}" STREQUAL "")
    message(FATAL_ERROR "Environment variable PLATFORM_NAME is empty")
  endif()

  set(all_platforms "$ENV{SUPPORTED_PLATFORMS}")
  if("${all_platforms}" STREQUAL "")
    message(FATAL_ERROR "Environment variable SUPPORTED_PLATFORMS is empty")
  endif()

  separate_arguments(all_platforms)
  if(NOT this_sdk IN_LIST all_platforms)
    message(FATAL_ERROR "`${this_sdk}` not found in `${all_platforms}`")
  endif()

  list(REMOVE_ITEM all_platforms "" "${this_sdk}")
  list(LENGTH all_platforms all_platforms_length)
  if(NOT all_platforms_length EQUAL 1)
    message(FATAL_ERROR "Expected one element: ${all_platforms}")
  endif()

  set(${this_sdk_var} "${this_sdk}" PARENT_SCOPE)
  set(${corr_sdk_var} "${all_platforms}" PARENT_SCOPE)
endfunction()

# Create combined binary for the given target.
#
# Preconditions:
#  * Target already installed at ${destination}
#    for the ${PLATFORM_NAME} platform
#
# This function will:
#  * Run build for the lacking platform, i.e. opposite to the ${PLATFORM_NAME}
#  * Fuse both libraries by running lipo
function(ios_install_combined target destination)
  if("${target}" STREQUAL "")
    message(FATAL_ERROR "`target` is empty")
  endif()

  if("${destination}" STREQUAL "")
    message(FATAL_ERROR "`destination` is empty")
  endif()

  if(NOT IS_ABSOLUTE "${destination}")
    message(FATAL_ERROR "`destination` is not absolute: ${destination}")
  endif()

  if(IS_DIRECTORY "${destination}" OR IS_SYMLINK "${destination}")
    message(FATAL_ERROR "`destination` is no regular file: ${destination}")
  endif()

  if("${CMAKE_BINARY_DIR}" STREQUAL "")
    message(FATAL_ERROR "`CMAKE_BINARY_DIR` is empty")
  endif()

  if(NOT IS_DIRECTORY "${CMAKE_BINARY_DIR}")
    message(FATAL_ERROR "Is not a directory: ${CMAKE_BINARY_DIR}")
  endif()

  if("${CMAKE_INSTALL_CONFIG_NAME}" STREQUAL "")
    message(FATAL_ERROR "CMAKE_INSTALL_CONFIG_NAME is empty")
  endif()

  set(cmd xcrun -f lipo)
240
241
242

  # Do not merge OUTPUT_VARIABLE and ERROR_VARIABLE since latter may contain
  # some diagnostic information even for the successful run.
243
244
245
246
  execute_process(
      COMMAND ${cmd}
      RESULT_VARIABLE result
      OUTPUT_VARIABLE output
247
      ERROR_VARIABLE error_output
248
249
250
251
252
      OUTPUT_STRIP_TRAILING_WHITESPACE
      ERROR_STRIP_TRAILING_WHITESPACE
  )
  if(NOT result EQUAL 0)
    message(
253
        FATAL_ERROR "Command failed (${result}): ${cmd}\n\nOutput:\n${output}\nOutput(error):\n${error_output}"
254
255
256
    )
  endif()
  set(_lipo_path ${output})
257
258
259
260
261
262
263
  list(LENGTH _lipo_path len)
  if(NOT len EQUAL 1)
    message(FATAL_ERROR "Unexpected xcrun output: ${_lipo_path}")
  endif()
  if(NOT EXISTS "${_lipo_path}")
    message(FATAL_ERROR "File not found: ${_lipo_path}")
  endif()
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317

  set(CURRENT_CONFIG "${CMAKE_INSTALL_CONFIG_NAME}")
  set(CURRENT_TARGET "${target}")

  _ios_install_combined_message("Target: ${CURRENT_TARGET}")
  _ios_install_combined_message("Config: ${CURRENT_CONFIG}")
  _ios_install_combined_message("Destination: ${destination}")

  # Get SDKs
  _ios_install_combined_detect_sdks(this_sdk corr_sdk)

  # Get architectures of the target
  _ios_install_combined_get_valid_archs("${corr_sdk}" corr_valid_archs)
  _ios_install_combined_get_valid_archs("${this_sdk}" this_valid_archs)

  # Return if there are no valid architectures for the SDK.
  # (note that library already installed)
  if("${corr_valid_archs}" STREQUAL "")
    _ios_install_combined_message(
        "No architectures detected for `${corr_sdk}` (skip)"
    )
    return()
  endif()

  # Trigger build of corresponding target
  _ios_install_combined_build("${corr_sdk}")

  # Get location of the library in build directory
  _ios_install_combined_get_build_setting(
    "${corr_sdk}" "CONFIGURATION_BUILD_DIR" corr_build_dir)
  _ios_install_combined_get_build_setting(
    "${corr_sdk}" "EXECUTABLE_PATH" corr_executable_path)
  set(corr "${corr_build_dir}/${corr_executable_path}")

  _ios_install_combined_keep_archs("${corr}" "${corr_valid_archs}")
  _ios_install_combined_keep_archs("${destination}" "${this_valid_archs}")

  _ios_install_combined_message("Current: ${destination}")
  _ios_install_combined_message("Corresponding: ${corr}")

  set(cmd "${_lipo_path}" -create ${corr} ${destination} -output ${destination})

  execute_process(
      COMMAND ${cmd}
      WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
      RESULT_VARIABLE result
  )

  if(NOT result EQUAL 0)
    message(FATAL_ERROR "Command failed: ${cmd}")
  endif()

  _ios_install_combined_message("Install done: ${destination}")
endfunction()