Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

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14 pmbaty 1
include(GNUInstallDirs)
2
include(LLVMDistributionSupport)
3
include(LLVMProcessSources)
4
include(LLVM-Config)
5
include(DetermineGCCCompatible)
6
 
7
function(llvm_update_compile_flags name)
8
  get_property(sources TARGET ${name} PROPERTY SOURCES)
9
  if("${sources}" MATCHES "\\.c(;|$)")
10
    set(update_src_props ON)
11
  endif()
12
 
13
  list(APPEND LLVM_COMPILE_CFLAGS " ${LLVM_COMPILE_FLAGS}")
14
 
15
  # LLVM_REQUIRES_EH is an internal flag that individual targets can use to
16
  # force EH
17
  if(LLVM_REQUIRES_EH OR LLVM_ENABLE_EH)
18
    if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
19
      message(AUTHOR_WARNING "Exception handling requires RTTI. Enabling RTTI for ${name}")
20
      set(LLVM_REQUIRES_RTTI ON)
21
    endif()
22
    if(MSVC)
23
      list(APPEND LLVM_COMPILE_FLAGS "/EHsc")
24
    endif()
25
  else()
26
    if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
27
      list(APPEND LLVM_COMPILE_FLAGS "-fno-exceptions")
28
      if(NOT LLVM_ENABLE_UNWIND_TABLES)
29
        list(APPEND LLVM_COMPILE_FLAGS "-fno-unwind-tables")
30
        list(APPEND LLVM_COMPILE_FLAGS "-fno-asynchronous-unwind-tables")
31
      endif()
32
    elseif(MSVC)
33
      list(APPEND LLVM_COMPILE_DEFINITIONS _HAS_EXCEPTIONS=0)
34
      list(APPEND LLVM_COMPILE_FLAGS "/EHs-c-")
35
    elseif (CMAKE_CXX_COMPILER_ID MATCHES "XL")
36
      list(APPEND LLVM_COMPILE_FLAGS "-qnoeh")
37
    endif()
38
  endif()
39
 
40
  # LLVM_REQUIRES_RTTI is an internal flag that individual
41
  # targets can use to force RTTI
42
  set(LLVM_CONFIG_HAS_RTTI YES CACHE INTERNAL "")
43
  if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
44
    set(LLVM_CONFIG_HAS_RTTI NO CACHE INTERNAL "")
45
    list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0)
46
    if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
47
      list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti")
48
    elseif (MSVC)
49
      list(APPEND LLVM_COMPILE_FLAGS "/GR-")
50
    elseif (CMAKE_CXX_COMPILER_ID MATCHES "XL")
51
      list(APPEND LLVM_COMPILE_FLAGS "-qnortti")
52
    endif ()
53
  elseif(MSVC)
54
    list(APPEND LLVM_COMPILE_FLAGS "/GR")
55
  endif()
56
 
57
  # Assume that;
58
  #   - LLVM_COMPILE_FLAGS is list.
59
  #   - PROPERTY COMPILE_FLAGS is string.
60
  string(REPLACE ";" " " target_compile_flags " ${LLVM_COMPILE_FLAGS}")
61
  string(REPLACE ";" " " target_compile_cflags " ${LLVM_COMPILE_CFLAGS}")
62
 
63
  if(update_src_props)
64
    foreach(fn ${sources})
65
      get_filename_component(suf ${fn} EXT)
66
      if("${suf}" STREQUAL ".cpp")
67
        set_property(SOURCE ${fn} APPEND_STRING PROPERTY
68
          COMPILE_FLAGS "${target_compile_flags}")
69
      endif()
70
      if("${suf}" STREQUAL ".c")
71
        set_property(SOURCE ${fn} APPEND_STRING PROPERTY
72
          COMPILE_FLAGS "${target_compile_cflags}")
73
      endif()
74
    endforeach()
75
  else()
76
    # Update target props, since all sources are C++.
77
    set_property(TARGET ${name} APPEND_STRING PROPERTY
78
      COMPILE_FLAGS "${target_compile_flags}")
79
  endif()
80
 
81
  set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS ${LLVM_COMPILE_DEFINITIONS})
82
endfunction()
83
 
84
function(add_llvm_symbol_exports target_name export_file)
85
  if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
86
    set(native_export_file "${target_name}.exports")
87
    add_custom_command(OUTPUT ${native_export_file}
88
      COMMAND sed -e "s/^/_/" < ${export_file} > ${native_export_file}
89
      DEPENDS ${export_file}
90
      VERBATIM
91
      COMMENT "Creating export file for ${target_name}")
92
    set_property(TARGET ${target_name} APPEND_STRING PROPERTY
93
                 LINK_FLAGS " -Wl,-exported_symbols_list,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
94
  elseif(${CMAKE_SYSTEM_NAME} MATCHES "AIX")
95
    # FIXME: `-Wl,-bE:` bypasses whatever handling there is in the build
96
    # compiler driver to defer to the specified export list.
97
    set(native_export_file "${export_file}")
98
    set_property(TARGET ${target_name} APPEND_STRING PROPERTY
99
                 LINK_FLAGS " -Wl,-bE:${export_file}")
100
  elseif(LLVM_HAVE_LINK_VERSION_SCRIPT)
101
    # Gold and BFD ld require a version script rather than a plain list.
102
    set(native_export_file "${target_name}.exports")
103
    # FIXME: Don't write the "local:" line on OpenBSD.
104
    # in the export file, also add a linker script to version LLVM symbols (form: LLVM_N.M)
105
    add_custom_command(OUTPUT ${native_export_file}
106
      COMMAND "${Python3_EXECUTABLE}" "-c"
107
      "import sys; \
108
       lines = ['    ' + l.rstrip() for l in sys.stdin] + ['  local: *;']; \
109
       print('LLVM_${LLVM_VERSION_MAJOR} {'); \
110
       print('  global:') if len(lines) > 1 else None; \
111
       print(';\\n'.join(lines) + '\\n};')"
112
      < ${export_file} > ${native_export_file}
113
      DEPENDS ${export_file}
114
      VERBATIM
115
      COMMENT "Creating export file for ${target_name}")
116
    if (${LLVM_LINKER_IS_SOLARISLD})
117
      set_property(TARGET ${target_name} APPEND_STRING PROPERTY
118
                   LINK_FLAGS "  -Wl,-M,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
119
    else()
120
      set_property(TARGET ${target_name} APPEND_STRING PROPERTY
121
                   LINK_FLAGS "  -Wl,--version-script,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
122
    endif()
123
  elseif(WIN32)
124
    set(native_export_file "${target_name}.def")
125
 
126
    add_custom_command(OUTPUT ${native_export_file}
127
      COMMAND "${Python3_EXECUTABLE}" -c "import sys;print(''.join(['EXPORTS\\n']+sys.stdin.readlines(),))"
128
        < ${export_file} > ${native_export_file}
129
      DEPENDS ${export_file}
130
      VERBATIM
131
      COMMENT "Creating export file for ${target_name}")
132
    set(export_file_linker_flag "${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
133
    if(MSVC)
134
      # cl.exe or clang-cl, i.e. MSVC style command line interface
135
      set(export_file_linker_flag "/DEF:\"${export_file_linker_flag}\"")
136
    elseif(CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC")
137
      # clang in msvc mode, calling a link.exe/lld-link style linker
138
      set(export_file_linker_flag "-Wl,/DEF:\"${export_file_linker_flag}\"")
139
    elseif(MINGW)
140
      # ${export_file_linker_flag}, which is the plain file name, works as is
141
      # when passed to the compiler driver, which then passes it on to the
142
      # linker as an input file.
143
      set(export_file_linker_flag "\"${export_file_linker_flag}\"")
144
    else()
145
      message(FATAL_ERROR "Unsupported Windows toolchain")
146
    endif()
147
    set_property(TARGET ${target_name} APPEND_STRING PROPERTY
148
                 LINK_FLAGS " ${export_file_linker_flag}")
149
  endif()
150
 
151
  add_custom_target(${target_name}_exports DEPENDS ${native_export_file})
152
  set_target_properties(${target_name}_exports PROPERTIES FOLDER "Misc")
153
 
154
  get_property(srcs TARGET ${target_name} PROPERTY SOURCES)
155
  foreach(src ${srcs})
156
    get_filename_component(extension ${src} EXT)
157
    if(extension STREQUAL ".cpp")
158
      set(first_source_file ${src})
159
      break()
160
    endif()
161
  endforeach()
162
 
163
  # Force re-linking when the exports file changes. Actually, it
164
  # forces recompilation of the source file. The LINK_DEPENDS target
165
  # property only works for makefile-based generators.
166
  # FIXME: This is not safe because this will create the same target
167
  # ${native_export_file} in several different file:
168
  # - One where we emitted ${target_name}_exports
169
  # - One where we emitted the build command for the following object.
170
  # set_property(SOURCE ${first_source_file} APPEND PROPERTY
171
  #   OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file})
172
 
173
  set_property(DIRECTORY APPEND
174
    PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file})
175
 
176
  add_dependencies(${target_name} ${target_name}_exports)
177
 
178
  # Add dependency to *_exports later -- CMake issue 14747
179
  list(APPEND LLVM_COMMON_DEPENDS ${target_name}_exports)
180
  set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
181
endfunction(add_llvm_symbol_exports)
182
 
183
if (NOT DEFINED LLVM_LINKER_DETECTED AND NOT WIN32)
184
  # Detect what linker we have here.
185
  if(APPLE)
186
    # Linkers with ld64-compatible flags.
187
    set(version_flag "-Wl,-v")
188
  else()
189
    # Linkers with BFD ld-compatible flags.
190
    set(version_flag "-Wl,--version")
191
  endif()
192
 
193
  if (CMAKE_HOST_WIN32)
194
    set(DEVNULL "NUL")
195
  else()
196
    set(DEVNULL "/dev/null")
197
  endif()
198
 
199
  if(LLVM_USE_LINKER)
200
    set(command ${CMAKE_C_COMPILER} -fuse-ld=${LLVM_USE_LINKER} ${version_flag} -o ${DEVNULL})
201
  else()
202
    separate_arguments(flags UNIX_COMMAND "${CMAKE_EXE_LINKER_FLAGS}")
203
    set(command ${CMAKE_C_COMPILER} ${flags} ${version_flag} -o ${DEVNULL})
204
  endif()
205
  execute_process(
206
    COMMAND ${command}
207
    OUTPUT_VARIABLE stdout
208
    ERROR_VARIABLE stderr
209
    )
210
 
211
  if(APPLE)
212
    if("${stderr}" MATCHES "PROJECT:ld64")
213
      set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
214
      set(LLVM_LINKER_IS_LD64 YES CACHE INTERNAL "")
215
      message(STATUS "Linker detection: ld64")
216
    elseif("${stderr}" MATCHES "^LLD" OR
217
           "${stdout}" MATCHES "^LLD")
218
      set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
219
      set(LLVM_LINKER_IS_LLD YES CACHE INTERNAL "")
220
      message(STATUS "Linker detection: lld")
221
    else()
222
      set(LLVM_LINKER_DETECTED NO CACHE INTERNAL "")
223
      message(STATUS "Linker detection: unknown")
224
    endif()
225
  else()
226
    if("${stdout}" MATCHES "^mold")
227
      set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
228
      set(LLVM_LINKER_IS_MOLD YES CACHE INTERNAL "")
229
      message(STATUS "Linker detection: mold")
230
    elseif("${stdout}" MATCHES "GNU gold")
231
      set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
232
      set(LLVM_LINKER_IS_GOLD YES CACHE INTERNAL "")
233
      message(STATUS "Linker detection: GNU Gold")
234
    elseif("${stdout}" MATCHES "^LLD")
235
      set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
236
      set(LLVM_LINKER_IS_LLD YES CACHE INTERNAL "")
237
      message(STATUS "Linker detection: LLD")
238
    elseif("${stdout}" MATCHES "GNU ld")
239
      set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
240
      set(LLVM_LINKER_IS_GNULD YES CACHE INTERNAL "")
241
      message(STATUS "Linker detection: GNU ld")
242
    elseif("${stderr}" MATCHES "Solaris Link Editors" OR
243
           "${stdout}" MATCHES "Solaris Link Editors")
244
      set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
245
      set(LLVM_LINKER_IS_SOLARISLD YES CACHE INTERNAL "")
246
      message(STATUS "Linker detection: Solaris ld")
247
    else()
248
      set(LLVM_LINKER_DETECTED NO CACHE INTERNAL "")
249
      message(STATUS "Linker detection: unknown")
250
    endif()
251
  endif()
252
endif()
253
 
254
function(add_link_opts target_name)
255
  get_llvm_distribution(${target_name} in_distribution in_distribution_var)
256
  if(NOT in_distribution)
257
    # Don't LTO optimize targets that aren't part of any distribution.
258
    if (LLVM_ENABLE_LTO)
259
      # We may consider avoiding LTO altogether by using -fembed-bitcode
260
      # and teaching the linker to select machine code from .o files, see
261
      # https://lists.llvm.org/pipermail/llvm-dev/2021-April/149843.html
262
      if((UNIX OR MINGW) AND LINKER_IS_LLD)
263
        set_property(TARGET ${target_name} APPEND_STRING PROPERTY
264
                      LINK_FLAGS " -Wl,--lto-O0")
265
      elseif(LINKER_IS_LLD_LINK)
266
        set_property(TARGET ${target_name} APPEND_STRING PROPERTY
267
                      LINK_FLAGS " /opt:lldlto=0")
268
      elseif(APPLE AND NOT uppercase_LLVM_ENABLE_LTO STREQUAL "THIN")
269
        set_property(TARGET ${target_name} APPEND_STRING PROPERTY
270
                      LINK_FLAGS " -Wl,-mllvm,-O0")
271
      endif()
272
    endif()
273
  endif()
274
 
275
  # Don't use linker optimizations in debug builds since it slows down the
276
  # linker in a context where the optimizations are not important.
277
  if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
278
    if(NOT LLVM_NO_DEAD_STRIP)
279
      if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
280
        # ld64's implementation of -dead_strip breaks tools that use plugins.
281
        set_property(TARGET ${target_name} APPEND_STRING PROPERTY
282
                     LINK_FLAGS " -Wl,-dead_strip")
283
      elseif(${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
284
        # Support for ld -z discard-unused=sections was only added in
285
        # Solaris 11.4.
286
        include(LLVMCheckLinkerFlag)
287
        llvm_check_linker_flag(CXX "-Wl,-z,discard-unused=sections" LINKER_SUPPORTS_Z_DISCARD_UNUSED)
288
        if (LINKER_SUPPORTS_Z_DISCARD_UNUSED)
289
          set_property(TARGET ${target_name} APPEND_STRING PROPERTY
290
                       LINK_FLAGS " -Wl,-z,discard-unused=sections")
291
        endif()
292
      elseif(NOT MSVC AND NOT CMAKE_SYSTEM_NAME MATCHES "AIX|OS390")
293
        # TODO Revisit this later on z/OS.
294
        set_property(TARGET ${target_name} APPEND_STRING PROPERTY
295
                     LINK_FLAGS " -Wl,--gc-sections")
296
      endif()
297
    else() #LLVM_NO_DEAD_STRIP
298
      if(${CMAKE_SYSTEM_NAME} MATCHES "AIX")
299
        set_property(TARGET ${target_name} APPEND_STRING PROPERTY
300
                     LINK_FLAGS " -Wl,-bnogc")
301
      endif()
302
    endif()
303
  endif()
304
 
305
  if(ARG_SUPPORT_PLUGINS AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
306
    set_property(TARGET ${target_name} APPEND_STRING PROPERTY
307
                 LINK_FLAGS " -Wl,-brtl")
308
  endif()
309
endfunction(add_link_opts)
310
 
311
# Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}.
312
# Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more,
313
# or a certain builder, for eaxample, msbuild.exe, would be confused.
314
function(set_output_directory target)
315
  cmake_parse_arguments(ARG "" "BINARY_DIR;LIBRARY_DIR" "" ${ARGN})
316
 
317
  # module_dir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
318
  # It affects output of add_library(MODULE).
319
  if(WIN32 OR CYGWIN)
320
    # DLL platform
321
    set(module_dir ${ARG_BINARY_DIR})
322
  else()
323
    set(module_dir ${ARG_LIBRARY_DIR})
324
  endif()
325
  if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
326
    foreach(build_mode ${CMAKE_CONFIGURATION_TYPES})
327
      string(TOUPPER "${build_mode}" CONFIG_SUFFIX)
328
      if(ARG_BINARY_DIR)
329
        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${ARG_BINARY_DIR})
330
        set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
331
      endif()
332
      if(ARG_LIBRARY_DIR)
333
        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${ARG_LIBRARY_DIR})
334
        set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
335
      endif()
336
      if(module_dir)
337
        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${module_dir})
338
        set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
339
      endif()
340
    endforeach()
341
  else()
342
    if(ARG_BINARY_DIR)
343
      set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${ARG_BINARY_DIR})
344
    endif()
345
    if(ARG_LIBRARY_DIR)
346
      set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${ARG_LIBRARY_DIR})
347
    endif()
348
    if(module_dir)
349
      set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${module_dir})
350
    endif()
351
  endif()
352
endfunction()
353
 
354
# If on Windows and building with MSVC, add the resource script containing the
355
# VERSIONINFO data to the project.  This embeds version resource information
356
# into the output .exe or .dll.
357
# TODO: Enable for MinGW Windows builds too.
358
#
359
function(add_windows_version_resource_file OUT_VAR)
360
  set(sources ${ARGN})
361
  if (MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
362
    set(resource_file ${LLVM_SOURCE_DIR}/resources/windows_version_resource.rc)
363
    if(EXISTS ${resource_file})
364
      set(sources ${sources} ${resource_file})
365
      source_group("Resource Files" ${resource_file})
366
      set(windows_resource_file ${resource_file} PARENT_SCOPE)
367
    endif()
368
  endif(MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
369
 
370
  set(${OUT_VAR} ${sources} PARENT_SCOPE)
371
endfunction(add_windows_version_resource_file)
372
 
373
# set_windows_version_resource_properties(name resource_file...
374
#   VERSION_MAJOR int
375
#     Optional major version number (defaults to LLVM_VERSION_MAJOR)
376
#   VERSION_MINOR int
377
#     Optional minor version number (defaults to LLVM_VERSION_MINOR)
378
#   VERSION_PATCHLEVEL int
379
#     Optional patchlevel version number (defaults to LLVM_VERSION_PATCH)
380
#   VERSION_STRING
381
#     Optional version string (defaults to PACKAGE_VERSION)
382
#   PRODUCT_NAME
383
#     Optional product name string (defaults to "LLVM")
384
#   )
385
function(set_windows_version_resource_properties name resource_file)
386
  cmake_parse_arguments(ARG
387
    ""
388
    "VERSION_MAJOR;VERSION_MINOR;VERSION_PATCHLEVEL;VERSION_STRING;PRODUCT_NAME"
389
    ""
390
    ${ARGN})
391
 
392
  if (NOT DEFINED ARG_VERSION_MAJOR)
393
    if (${LLVM_VERSION_MAJOR})
394
      set(ARG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
395
    else()
396
      set(ARG_VERSION_MAJOR 0)
397
    endif()
398
  endif()
399
 
400
  if (NOT DEFINED ARG_VERSION_MINOR)
401
    if (${LLVM_VERSION_MINOR})
402
      set(ARG_VERSION_MINOR ${LLVM_VERSION_MINOR})
403
    else()
404
      set(ARG_VERSION_MINOR 0)
405
    endif()
406
  endif()
407
 
408
  if (NOT DEFINED ARG_VERSION_PATCHLEVEL)
409
    if (${LLVM_VERSION_PATCH})
410
      set(ARG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
411
    else()
412
      set(ARG_VERSION_PATCHLEVEL 0)
413
    endif()
414
  endif()
415
 
416
  if (NOT DEFINED ARG_VERSION_STRING)
417
    if (${PACKAGE_VERSION})
418
      set(ARG_VERSION_STRING ${PACKAGE_VERSION})
419
    else()
420
      set(ARG_VERSION_STRING 0)
421
    endif()
422
  endif()
423
 
424
  if (NOT DEFINED ARG_PRODUCT_NAME)
425
    set(ARG_PRODUCT_NAME "LLVM")
426
  endif()
427
 
428
  set_property(SOURCE ${resource_file}
429
               PROPERTY COMPILE_FLAGS /nologo)
430
  set_property(SOURCE ${resource_file}
431
               PROPERTY COMPILE_DEFINITIONS
432
               "RC_VERSION_FIELD_1=${ARG_VERSION_MAJOR}"
433
               "RC_VERSION_FIELD_2=${ARG_VERSION_MINOR}"
434
               "RC_VERSION_FIELD_3=${ARG_VERSION_PATCHLEVEL}"
435
               "RC_VERSION_FIELD_4=0"
436
               "RC_FILE_VERSION=\"${ARG_VERSION_STRING}\""
437
               "RC_INTERNAL_NAME=\"${name}\""
438
               "RC_PRODUCT_NAME=\"${ARG_PRODUCT_NAME}\""
439
               "RC_PRODUCT_VERSION=\"${ARG_VERSION_STRING}\"")
440
endfunction(set_windows_version_resource_properties)
441
 
442
# llvm_add_library(name sources...
443
#   SHARED;STATIC
444
#     STATIC by default w/o BUILD_SHARED_LIBS.
445
#     SHARED by default w/  BUILD_SHARED_LIBS.
446
#   OBJECT
447
#     Also create an OBJECT library target. Default if STATIC && SHARED.
448
#   MODULE
449
#     Target ${name} might not be created on unsupported platforms.
450
#     Check with "if(TARGET ${name})".
451
#   DISABLE_LLVM_LINK_LLVM_DYLIB
452
#     Do not link this library to libLLVM, even if
453
#     LLVM_LINK_LLVM_DYLIB is enabled.
454
#   OUTPUT_NAME name
455
#     Corresponds to OUTPUT_NAME in target properties.
456
#   DEPENDS targets...
457
#     Same semantics as add_dependencies().
458
#   LINK_COMPONENTS components...
459
#     Same as the variable LLVM_LINK_COMPONENTS.
460
#   LINK_LIBS lib_targets...
461
#     Same semantics as target_link_libraries().
462
#   ADDITIONAL_HEADERS
463
#     May specify header files for IDE generators.
464
#   SONAME
465
#     Should set SONAME link flags and create symlinks
466
#   NO_INSTALL_RPATH
467
#     Suppress default RPATH settings in shared libraries.
468
#   PLUGIN_TOOL
469
#     The tool (i.e. cmake target) that this plugin will link against
470
#   COMPONENT_LIB
471
#      This is used to specify that this is a component library of
472
#      LLVM which means that the source resides in llvm/lib/ and it is a
473
#      candidate for inclusion into libLLVM.so.
474
#   )
475
function(llvm_add_library name)
476
  cmake_parse_arguments(ARG
477
    "MODULE;SHARED;STATIC;OBJECT;DISABLE_LLVM_LINK_LLVM_DYLIB;SONAME;NO_INSTALL_RPATH;COMPONENT_LIB"
478
    "OUTPUT_NAME;PLUGIN_TOOL;ENTITLEMENTS;BUNDLE_PATH"
479
    "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS"
480
    ${ARGN})
481
  list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
482
  if(ARG_ADDITIONAL_HEADERS)
483
    # Pass through ADDITIONAL_HEADERS.
484
    set(ARG_ADDITIONAL_HEADERS ADDITIONAL_HEADERS ${ARG_ADDITIONAL_HEADERS})
485
  endif()
486
  if(ARG_OBJLIBS)
487
    set(ALL_FILES ${ARG_OBJLIBS})
488
  else()
489
    llvm_process_sources(ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ${ARG_ADDITIONAL_HEADERS})
490
  endif()
491
 
492
  if(ARG_MODULE)
493
    if(ARG_SHARED OR ARG_STATIC)
494
      message(WARNING "MODULE with SHARED|STATIC doesn't make sense.")
495
    endif()
496
    # Plugins that link against a tool are allowed even when plugins in general are not
497
    if(NOT LLVM_ENABLE_PLUGINS AND NOT (ARG_PLUGIN_TOOL AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS))
498
      message(STATUS "${name} ignored -- Loadable modules not supported on this platform.")
499
      return()
500
    endif()
501
  else()
502
    if(ARG_PLUGIN_TOOL)
503
      message(WARNING "PLUGIN_TOOL without MODULE doesn't make sense.")
504
    endif()
505
    if(BUILD_SHARED_LIBS AND NOT ARG_STATIC)
506
      set(ARG_SHARED TRUE)
507
    endif()
508
    if(NOT ARG_SHARED)
509
      set(ARG_STATIC TRUE)
510
    endif()
511
  endif()
512
 
513
  # Generate objlib
514
  if((ARG_SHARED AND ARG_STATIC) OR ARG_OBJECT)
515
    # Generate an obj library for both targets.
516
    set(obj_name "obj.${name}")
517
    add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
518
      ${ALL_FILES}
519
      )
520
    llvm_update_compile_flags(${obj_name})
521
    if(CMAKE_GENERATOR STREQUAL "Xcode")
522
      set(DUMMY_FILE ${CMAKE_CURRENT_BINARY_DIR}/Dummy.c)
523
      file(WRITE ${DUMMY_FILE} "// This file intentionally empty\n")
524
      set_property(SOURCE ${DUMMY_FILE} APPEND_STRING PROPERTY COMPILE_FLAGS "-Wno-empty-translation-unit")
525
    endif()
526
    set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>" ${DUMMY_FILE})
527
 
528
    # Do add_dependencies(obj) later due to CMake issue 14747.
529
    list(APPEND objlibs ${obj_name})
530
 
531
    # Bring in the target include directories from our original target.
532
    target_include_directories(${obj_name} PRIVATE $<TARGET_PROPERTY:${name},INCLUDE_DIRECTORIES>)
533
 
534
    set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
535
    if(ARG_DEPENDS)
536
      add_dependencies(${obj_name} ${ARG_DEPENDS})
537
    endif()
538
    # Treat link libraries like PUBLIC dependencies.  LINK_LIBS might
539
    # result in generating header files.  Add a dependendency so that
540
    # the generated header is created before this object library.
541
    if(ARG_LINK_LIBS)
542
      cmake_parse_arguments(LINK_LIBS_ARG
543
        ""
544
        ""
545
        "PUBLIC;PRIVATE"
546
        ${ARG_LINK_LIBS})
547
      foreach(link_lib ${LINK_LIBS_ARG_PUBLIC})
548
        if(LLVM_PTHREAD_LIB)
549
          # Can't specify a dependence on -lpthread
550
          if(NOT ${link_lib} STREQUAL ${LLVM_PTHREAD_LIB})
551
            add_dependencies(${obj_name} ${link_lib})
552
          endif()
553
        else()
554
          add_dependencies(${obj_name} ${link_lib})
555
        endif()
556
      endforeach()
557
    endif()
558
  endif()
559
 
560
  if(ARG_SHARED AND ARG_STATIC)
561
    # static
562
    set(name_static "${name}_static")
563
    if(ARG_OUTPUT_NAME)
564
      set(output_name OUTPUT_NAME "${ARG_OUTPUT_NAME}")
565
    endif()
566
    # DEPENDS has been appended to LLVM_COMMON_LIBS.
567
    llvm_add_library(${name_static} STATIC
568
      ${output_name}
569
      OBJLIBS ${ALL_FILES} # objlib
570
      LINK_LIBS ${ARG_LINK_LIBS}
571
      LINK_COMPONENTS ${ARG_LINK_COMPONENTS}
572
      )
573
 
574
    # Bring in the target link info from our original target.
575
    target_link_directories(${name_static} PRIVATE $<TARGET_PROPERTY:${name},LINK_DIRECTORIES>)
576
    target_link_libraries(${name_static} PRIVATE $<TARGET_PROPERTY:${name},LINK_LIBRARIES>)
577
 
578
    # FIXME: Add name_static to anywhere in TARGET ${name}'s PROPERTY.
579
    set(ARG_STATIC)
580
  endif()
581
 
582
  if(ARG_MODULE)
583
    add_library(${name} MODULE ${ALL_FILES})
584
  elseif(ARG_SHARED)
585
    add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
586
    add_library(${name} SHARED ${ALL_FILES})
587
  else()
588
    add_library(${name} STATIC ${ALL_FILES})
589
  endif()
590
 
591
  if(ARG_COMPONENT_LIB)
592
    set_target_properties(${name} PROPERTIES LLVM_COMPONENT TRUE)
593
    set_property(GLOBAL APPEND PROPERTY LLVM_COMPONENT_LIBS ${name})
594
  endif()
595
 
596
  if(NOT ARG_NO_INSTALL_RPATH)
597
    if(ARG_MODULE OR ARG_SHARED)
598
      llvm_setup_rpath(${name})
599
    endif()
600
  endif()
601
 
602
  setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS})
603
 
604
  if(DEFINED windows_resource_file)
605
    set_windows_version_resource_properties(${name} ${windows_resource_file})
606
    set(windows_resource_file ${windows_resource_file} PARENT_SCOPE)
607
  endif()
608
 
609
  set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
610
  # $<TARGET_OBJECTS> doesn't require compile flags.
611
  if(NOT obj_name)
612
    llvm_update_compile_flags(${name})
613
  endif()
614
  add_link_opts( ${name} )
615
  if(ARG_OUTPUT_NAME)
616
    set_target_properties(${name}
617
      PROPERTIES
618
      OUTPUT_NAME ${ARG_OUTPUT_NAME}
619
      )
620
  endif()
621
 
622
  if(ARG_MODULE)
623
    set_target_properties(${name} PROPERTIES
624
      PREFIX ""
625
      SUFFIX ${LLVM_PLUGIN_EXT}
626
      )
627
  endif()
628
 
629
  if(ARG_SHARED)
630
    if(MSVC)
631
      set_target_properties(${name} PROPERTIES
632
        PREFIX ""
633
        )
634
    endif()
635
 
636
    # Set SOVERSION on shared libraries that lack explicit SONAME
637
    # specifier, on *nix systems that are not Darwin.
638
    if(UNIX AND NOT APPLE AND NOT ARG_SONAME)
639
      set_target_properties(${name}
640
        PROPERTIES
641
        # Since 4.0.0, the ABI version is indicated by the major version
642
        SOVERSION ${LLVM_VERSION_MAJOR}${LLVM_VERSION_SUFFIX}
643
        VERSION ${LLVM_VERSION_MAJOR}${LLVM_VERSION_SUFFIX})
644
    endif()
645
  endif()
646
 
647
  if(ARG_MODULE OR ARG_SHARED)
648
    # Do not add -Dname_EXPORTS to the command-line when building files in this
649
    # target. Doing so is actively harmful for the modules build because it
650
    # creates extra module variants, and not useful because we don't use these
651
    # macros.
652
    set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
653
 
654
    if (LLVM_EXPORTED_SYMBOL_FILE)
655
      add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
656
    endif()
657
  endif()
658
 
659
  if(ARG_SHARED)
660
    if(NOT APPLE AND ARG_SONAME)
661
      get_target_property(output_name ${name} OUTPUT_NAME)
662
      if(${output_name} STREQUAL "output_name-NOTFOUND")
663
        set(output_name ${name})
664
      endif()
665
      set(library_name ${output_name}-${LLVM_VERSION_MAJOR}${LLVM_VERSION_SUFFIX})
666
      set(api_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
667
      set_target_properties(${name} PROPERTIES OUTPUT_NAME ${library_name})
668
      if(UNIX)
669
        llvm_install_library_symlink(${api_name} ${library_name} SHARED
670
          COMPONENT ${name})
671
        llvm_install_library_symlink(${output_name} ${library_name} SHARED
672
          COMPONENT ${name})
673
      endif()
674
    endif()
675
  endif()
676
 
677
  if(ARG_STATIC)
678
    set(libtype PUBLIC)
679
  else()
680
    # We can use PRIVATE since SO knows its dependent libs.
681
    set(libtype PRIVATE)
682
  endif()
683
 
684
  if(ARG_MODULE AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS AND ARG_PLUGIN_TOOL AND (WIN32 OR CYGWIN))
685
    # On DLL platforms symbols are imported from the tool by linking against it.
686
    set(llvm_libs ${ARG_PLUGIN_TOOL})
687
  elseif (NOT ARG_COMPONENT_LIB)
688
    if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
689
      set(llvm_libs LLVM)
690
    else()
691
      llvm_map_components_to_libnames(llvm_libs
692
       ${ARG_LINK_COMPONENTS}
693
       ${LLVM_LINK_COMPONENTS}
694
       )
695
    endif()
696
  else()
697
    # Components have not been defined explicitly in CMake, so add the
698
    # dependency information for this library through their name, and let
699
    # LLVMBuildResolveComponentsLink resolve the mapping.
700
    #
701
    # It would be nice to verify that we have the dependencies for this library
702
    # name, but using get_property(... SET) doesn't suffice to determine if a
703
    # property has been set to an empty value.
704
    set_property(TARGET ${name} PROPERTY LLVM_LINK_COMPONENTS ${ARG_LINK_COMPONENTS} ${LLVM_LINK_COMPONENTS})
705
 
706
    # This property is an internal property only used to make sure the
707
    # link step applied in LLVMBuildResolveComponentsLink uses the same
708
    # property as the target_link_libraries call below.
709
    set_property(TARGET ${name} PROPERTY LLVM_LIBTYPE ${libtype})
710
  endif()
711
 
712
  target_link_libraries(${name} ${libtype}
713
      ${ARG_LINK_LIBS}
714
      ${lib_deps}
715
      ${llvm_libs}
716
      )
717
 
718
  if(LLVM_COMMON_DEPENDS)
719
    add_dependencies(${name} ${LLVM_COMMON_DEPENDS})
720
    # Add dependencies also to objlibs.
721
    # CMake issue 14747 --  add_dependencies() might be ignored to objlib's user.
722
    foreach(objlib ${objlibs})
723
      add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
724
    endforeach()
725
  endif()
726
 
727
  if(ARG_SHARED OR ARG_MODULE)
728
    llvm_externalize_debuginfo(${name})
729
    llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS} BUNDLE_PATH ${ARG_BUNDLE_PATH})
730
  endif()
731
  # clang and newer versions of ninja use high-resolutions timestamps,
732
  # but older versions of libtool on Darwin don't, so the archive will
733
  # often get an older timestamp than the last object that was added
734
  # or updated.  To fix this, we add a custom command to touch archive
735
  # after it's been built so that ninja won't rebuild it unnecessarily
736
  # the next time it's run.
737
  if(ARG_STATIC AND LLVM_TOUCH_STATIC_LIBRARIES)
738
    add_custom_command(TARGET ${name}
739
      POST_BUILD
740
      COMMAND touch ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${name}${CMAKE_STATIC_LIBRARY_SUFFIX}
741
      )
742
  endif()
743
endfunction()
744
 
745
function(add_llvm_install_targets target)
746
  cmake_parse_arguments(ARG "" "COMPONENT;PREFIX;SYMLINK" "DEPENDS" ${ARGN})
747
  if(ARG_COMPONENT)
748
    set(component_option -DCMAKE_INSTALL_COMPONENT="${ARG_COMPONENT}")
749
  endif()
750
  if(ARG_PREFIX)
751
    set(prefix_option -DCMAKE_INSTALL_PREFIX="${ARG_PREFIX}")
752
  endif()
753
 
754
  set(file_dependencies)
755
  set(target_dependencies)
756
  foreach(dependency ${ARG_DEPENDS})
757
    if(TARGET ${dependency})
758
      list(APPEND target_dependencies ${dependency})
759
    else()
760
      list(APPEND file_dependencies ${dependency})
761
    endif()
762
  endforeach()
763
 
764
  add_custom_target(${target}
765
                    DEPENDS ${file_dependencies}
766
                    COMMAND "${CMAKE_COMMAND}"
767
                            ${component_option}
768
                            ${prefix_option}
769
                            -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
770
                    USES_TERMINAL)
771
  set_target_properties(${target} PROPERTIES FOLDER "Component Install Targets")
772
  add_custom_target(${target}-stripped
773
                    DEPENDS ${file_dependencies}
774
                    COMMAND "${CMAKE_COMMAND}"
775
                            ${component_option}
776
                            ${prefix_option}
777
                            -DCMAKE_INSTALL_DO_STRIP=1
778
                            -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
779
                    USES_TERMINAL)
780
  set_target_properties(${target}-stripped PROPERTIES FOLDER "Component Install Targets (Stripped)")
781
  if(target_dependencies)
782
    add_dependencies(${target} ${target_dependencies})
783
    add_dependencies(${target}-stripped ${target_dependencies})
784
  endif()
785
 
786
  if(ARG_SYMLINK)
787
    add_dependencies(${target} install-${ARG_SYMLINK})
788
    add_dependencies(${target}-stripped install-${ARG_SYMLINK}-stripped)
789
  endif()
790
endfunction()
791
 
792
# Define special targets that behave like a component group. They don't have any
793
# source attached but other components can add themselves to them. If the
794
# component supports is a Target and it supports JIT compilation, HAS_JIT must
795
# be passed. One can use ADD_TO_COMPONENT option from add_llvm_component_library
796
# to link extra component into an existing group.
797
function(add_llvm_component_group name)
798
  cmake_parse_arguments(ARG "HAS_JIT" "" "LINK_COMPONENTS" ${ARGN})
799
  add_custom_target(${name})
800
  if(ARG_HAS_JIT)
801
    set_property(TARGET ${name} PROPERTY COMPONENT_HAS_JIT ON)
802
  endif()
803
  if(ARG_LINK_COMPONENTS)
804
    set_property(TARGET ${name} PROPERTY LLVM_LINK_COMPONENTS ${ARG_LINK_COMPONENTS})
805
  endif()
806
endfunction()
807
 
808
# An LLVM component is a cmake target with the following cmake properties
809
# eventually set:
810
#   - LLVM_COMPONENT_NAME: the name of the component, which can be the name of
811
#     the associated library or the one specified through COMPONENT_NAME
812
#   - LLVM_LINK_COMPONENTS: a list of component this component depends on
813
#   - COMPONENT_HAS_JIT: (only for group component) whether this target group
814
#     supports JIT compilation
815
# Additionnaly, the ADD_TO_COMPONENT <component> option make it possible to add this
816
# component to the LLVM_LINK_COMPONENTS of <component>.
817
function(add_llvm_component_library name)
818
  cmake_parse_arguments(ARG
819
    ""
820
    "COMPONENT_NAME;ADD_TO_COMPONENT"
821
    ""
822
    ${ARGN})
823
  add_llvm_library(${name} COMPONENT_LIB ${ARG_UNPARSED_ARGUMENTS})
824
  string(REGEX REPLACE "^LLVM" "" component_name ${name})
825
  set_property(TARGET ${name} PROPERTY LLVM_COMPONENT_NAME ${component_name})
826
 
827
  if(ARG_COMPONENT_NAME)
828
    set_property(GLOBAL PROPERTY LLVM_COMPONENT_NAME_${ARG_COMPONENT_NAME} ${component_name})
829
  endif()
830
 
831
  if(ARG_ADD_TO_COMPONENT)
832
    set_property(TARGET ${ARG_ADD_TO_COMPONENT} APPEND PROPERTY LLVM_LINK_COMPONENTS ${component_name})
833
  endif()
834
 
835
endfunction()
836
 
837
macro(add_llvm_library name)
838
  cmake_parse_arguments(ARG
839
    "SHARED;BUILDTREE_ONLY;MODULE;INSTALL_WITH_TOOLCHAIN"
840
    ""
841
    ""
842
    ${ARGN})
843
  if(ARG_MODULE)
844
    llvm_add_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
845
  elseif( BUILD_SHARED_LIBS OR ARG_SHARED )
846
    llvm_add_library(${name} SHARED ${ARG_UNPARSED_ARGUMENTS})
847
  else()
848
    llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS})
849
  endif()
850
 
851
  # Libraries that are meant to only be exposed via the build tree only are
852
  # never installed and are only exported as a target in the special build tree
853
  # config file.
854
  if (NOT ARG_BUILDTREE_ONLY AND NOT ARG_MODULE)
855
    set_property( GLOBAL APPEND PROPERTY LLVM_LIBS ${name} )
856
    set(in_llvm_libs YES)
857
  endif()
858
 
859
  if (ARG_MODULE AND NOT TARGET ${name})
860
    # Add empty "phony" target
861
    add_custom_target(${name})
862
  elseif( EXCLUDE_FROM_ALL )
863
    set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
864
  elseif(ARG_BUILDTREE_ONLY)
865
    set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS_BUILDTREE_ONLY ${name})
866
  else()
867
    if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ARG_INSTALL_WITH_TOOLCHAIN)
868
      if(in_llvm_libs)
869
        set(umbrella UMBRELLA llvm-libraries)
870
      else()
871
        set(umbrella)
872
      endif()
873
 
874
      get_target_export_arg(${name} LLVM export_to_llvmexports ${umbrella})
875
      install(TARGETS ${name}
876
              ${export_to_llvmexports}
877
              LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
878
              ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
879
              RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT ${name})
880
 
881
      if (NOT LLVM_ENABLE_IDE)
882
        add_llvm_install_targets(install-${name}
883
                                 DEPENDS ${name}
884
                                 COMPONENT ${name})
885
      endif()
886
    endif()
887
    set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
888
  endif()
889
  if (ARG_MODULE)
890
    set_target_properties(${name} PROPERTIES FOLDER "Loadable modules")
891
  else()
892
    set_target_properties(${name} PROPERTIES FOLDER "Libraries")
893
  endif()
894
endmacro(add_llvm_library name)
895
 
896
macro(generate_llvm_objects name)
897
  cmake_parse_arguments(ARG "GENERATE_DRIVER" "" "DEPENDS" ${ARGN})
898
 
899
  llvm_process_sources( ALL_FILES ${ARG_UNPARSED_ARGUMENTS} )
900
 
901
  list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
902
 
903
  # Generate objlib
904
  if(LLVM_ENABLE_OBJLIB OR (ARG_GENERATE_DRIVER AND LLVM_TOOL_LLVM_DRIVER_BUILD))
905
    # Generate an obj library for both targets.
906
    set(obj_name "obj.${name}")
907
    add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
908
      ${ALL_FILES}
909
      )
910
    llvm_update_compile_flags(${obj_name})
911
    set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
912
    if(ARG_DEPENDS)
913
      add_dependencies(${obj_name} ${ARG_DEPENDS})
914
    endif()
915
 
916
    set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
917
  endif()
918
 
919
  if (ARG_GENERATE_DRIVER)
920
    string(REPLACE "-" "_" TOOL_NAME ${name})
921
    foreach(path ${CMAKE_MODULE_PATH})
922
      if(EXISTS ${path}/llvm-driver-template.cpp.in)
923
        configure_file(
924
          ${path}/llvm-driver-template.cpp.in
925
          ${CMAKE_CURRENT_BINARY_DIR}/${name}-driver.cpp)
926
        break()
927
      endif()
928
    endforeach()
929
 
930
    list(APPEND ALL_FILES ${CMAKE_CURRENT_BINARY_DIR}/${name}-driver.cpp)
931
 
932
    if (LLVM_TOOL_LLVM_DRIVER_BUILD
933
        AND (NOT LLVM_DISTRIBUTION_COMPONENTS OR ${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS)
934
       )
935
      set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_COMPONENTS ${LLVM_LINK_COMPONENTS})
936
      set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_DEPS ${ARG_DEPENDS} ${LLVM_COMMON_DEPENDS})
937
      set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_OBJLIBS "${obj_name}")
938
 
939
      set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_TOOLS ${name})
940
      set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_TOOL_ALIASES_${name} ${name})
941
      target_link_libraries(${obj_name} ${LLVM_PTHREAD_LIB})
942
      llvm_config(${obj_name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
943
    endif()
944
  endif()
945
endmacro()
946
 
947
macro(add_llvm_executable name)
948
  cmake_parse_arguments(ARG
949
    "DISABLE_LLVM_LINK_LLVM_DYLIB;IGNORE_EXTERNALIZE_DEBUGINFO;NO_INSTALL_RPATH;SUPPORT_PLUGINS"
950
    "ENTITLEMENTS;BUNDLE_PATH"
951
    ""
952
    ${ARGN})
953
  generate_llvm_objects(${name} ${ARG_UNPARSED_ARGUMENTS})
954
  add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
955
 
956
  if(XCODE)
957
    # Note: the dummy.cpp source file provides no definitions. However,
958
    # it forces Xcode to properly link the static library.
959
    list(APPEND ALL_FILES "${LLVM_MAIN_SRC_DIR}/cmake/dummy.cpp")
960
  endif()
961
 
962
  if( EXCLUDE_FROM_ALL )
963
    add_executable(${name} EXCLUDE_FROM_ALL ${ALL_FILES})
964
  else()
965
    add_executable(${name} ${ALL_FILES})
966
  endif()
967
 
968
  setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS})
969
 
970
  if(NOT ARG_NO_INSTALL_RPATH)
971
    llvm_setup_rpath(${name})
972
  elseif(NOT "${LLVM_LOCAL_RPATH}" STREQUAL "")
973
    # Enable BUILD_WITH_INSTALL_RPATH unless CMAKE_BUILD_RPATH is set.
974
    if("${CMAKE_BUILD_RPATH}" STREQUAL "")
975
      set_property(TARGET ${name} PROPERTY BUILD_WITH_INSTALL_RPATH ON)
976
    endif()
977
 
978
    set_property(TARGET ${name} PROPERTY INSTALL_RPATH "${LLVM_LOCAL_RPATH}")
979
  endif()
980
 
981
  if(DEFINED windows_resource_file)
982
    set_windows_version_resource_properties(${name} ${windows_resource_file})
983
  endif()
984
 
985
  # $<TARGET_OBJECTS> doesn't require compile flags.
986
  if(NOT LLVM_ENABLE_OBJLIB)
987
    llvm_update_compile_flags(${name})
988
  endif()
989
 
990
  if (ARG_SUPPORT_PLUGINS AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
991
    set(LLVM_NO_DEAD_STRIP On)
992
  endif()
993
 
994
  add_link_opts( ${name} )
995
 
996
  # Do not add -Dname_EXPORTS to the command-line when building files in this
997
  # target. Doing so is actively harmful for the modules build because it
998
  # creates extra module variants, and not useful because we don't use these
999
  # macros.
1000
  set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
1001
 
1002
  if (LLVM_EXPORTED_SYMBOL_FILE)
1003
    add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
1004
  endif(LLVM_EXPORTED_SYMBOL_FILE)
1005
 
1006
  if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
1007
    set(USE_SHARED USE_SHARED)
1008
  endif()
1009
 
1010
  set(EXCLUDE_FROM_ALL OFF)
1011
  set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
1012
  llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
1013
  if( LLVM_COMMON_DEPENDS )
1014
    add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} )
1015
    foreach(objlib ${obj_name})
1016
      add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
1017
    endforeach()
1018
  endif( LLVM_COMMON_DEPENDS )
1019
 
1020
  if(NOT ARG_IGNORE_EXTERNALIZE_DEBUGINFO)
1021
    llvm_externalize_debuginfo(${name})
1022
  endif()
1023
  if (LLVM_PTHREAD_LIB)
1024
    # libpthreads overrides some standard library symbols, so main
1025
    # executable must be linked with it in order to provide consistent
1026
    # API for all shared libaries loaded by this executable.
1027
    target_link_libraries(${name} PRIVATE ${LLVM_PTHREAD_LIB})
1028
  endif()
1029
 
1030
  llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS} BUNDLE_PATH ${ARG_BUNDLE_PATH})
1031
endmacro(add_llvm_executable name)
1032
 
1033
# add_llvm_pass_plugin(name [NO_MODULE] ...)
1034
#   Add ${name} as an llvm plugin.
1035
#   If option LLVM_${name_upper}_LINK_INTO_TOOLS is set to ON, the plugin is registered statically.
1036
#   Otherwise a pluggable shared library is registered.
1037
#
1038
#   If NO_MODULE is specified, when option LLVM_${name_upper}_LINK_INTO_TOOLS is set to OFF,
1039
#   only an object library is built, and no module is built. This is specific to the Polly use case.
1040
#
1041
#   The SUBPROJECT argument contains the LLVM project the plugin belongs
1042
#   to. If set, the plugin will link statically by default it if the
1043
#   project was enabled.
1044
function(add_llvm_pass_plugin name)
1045
  cmake_parse_arguments(ARG
1046
    "NO_MODULE" "SUBPROJECT" ""
1047
    ${ARGN})
1048
 
1049
  string(TOUPPER ${name} name_upper)
1050
 
1051
  # Enable the plugin by default if it was explicitly enabled by the user.
1052
  # Note: If was set to "all", LLVM's CMakeLists.txt replaces it with a
1053
  # list of all projects, counting as explicitly enabled.
1054
  set(link_into_tools_default OFF)
1055
  if (ARG_SUBPROJECT AND LLVM_TOOL_${name_upper}_BUILD)
1056
    set(link_into_tools_default ON)
1057
  endif()
1058
  option(LLVM_${name_upper}_LINK_INTO_TOOLS "Statically link ${name} into tools (if available)" ${link_into_tools_default})
1059
 
1060
  # If we statically link the plugin, don't use llvm dylib because we're going
1061
  # to be part of it.
1062
  if(LLVM_${name_upper}_LINK_INTO_TOOLS)
1063
      list(APPEND ARG_UNPARSED_ARGUMENTS DISABLE_LLVM_LINK_LLVM_DYLIB)
1064
  endif()
1065
 
1066
  if(LLVM_${name_upper}_LINK_INTO_TOOLS)
1067
    list(REMOVE_ITEM ARG_UNPARSED_ARGUMENTS BUILDTREE_ONLY)
1068
    # process_llvm_pass_plugins takes care of the actual linking, just create an
1069
    # object library as of now
1070
    add_llvm_library(${name} OBJECT ${ARG_UNPARSED_ARGUMENTS})
1071
    target_compile_definitions(${name} PRIVATE LLVM_${name_upper}_LINK_INTO_TOOLS)
1072
    set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS LLVM_LINK_INTO_TOOLS)
1073
    if (TARGET intrinsics_gen)
1074
      add_dependencies(obj.${name} intrinsics_gen)
1075
    endif()
1076
    if (TARGET omp_gen)
1077
      add_dependencies(obj.${name} omp_gen)
1078
    endif()
1079
    if (TARGET acc_gen)
1080
      add_dependencies(obj.${name} acc_gen)
1081
    endif()
1082
    set_property(GLOBAL APPEND PROPERTY LLVM_STATIC_EXTENSIONS ${name})
1083
  elseif(NOT ARG_NO_MODULE)
1084
    add_llvm_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
1085
  else()
1086
    add_llvm_library(${name} OBJECT ${ARG_UNPARSED_ARGUMENTS})
1087
  endif()
1088
  message(STATUS "Registering ${name} as a pass plugin (static build: ${LLVM_${name_upper}_LINK_INTO_TOOLS})")
1089
 
1090
endfunction(add_llvm_pass_plugin)
1091
 
1092
# process_llvm_pass_plugins([GEN_CONFIG])
1093
#
1094
# Correctly set lib dependencies between plugins and tools, based on tools
1095
# registered with the ENABLE_PLUGINS option.
1096
#
1097
# if GEN_CONFIG option is set, also generate X Macro file for extension
1098
# handling. It provides a HANDLE_EXTENSION(extension_namespace, ExtensionProject)
1099
# call for each extension allowing client code to define
1100
# HANDLE_EXTENSION to have a specific code be run for each extension.
1101
#
1102
function(process_llvm_pass_plugins)
1103
  cmake_parse_arguments(ARG
1104
      "GEN_CONFIG" "" ""
1105
    ${ARGN})
1106
 
1107
  if(ARG_GEN_CONFIG)
1108
      get_property(LLVM_STATIC_EXTENSIONS GLOBAL PROPERTY LLVM_STATIC_EXTENSIONS)
1109
  else()
1110
      include(LLVMConfigExtensions)
1111
  endif()
1112
 
1113
  # Add static plugins to the Extension component
1114
  foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
1115
      set_property(TARGET LLVMExtensions APPEND PROPERTY LINK_LIBRARIES ${llvm_extension})
1116
      set_property(TARGET LLVMExtensions APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${llvm_extension})
1117
  endforeach()
1118
 
1119
  # Eventually generate the extension headers, and store config to a cmake file
1120
  # for usage in third-party configuration.
1121
  if(ARG_GEN_CONFIG)
1122
 
1123
      ## Part 1: Extension header to be included whenever we need extension
1124
      #  processing.
1125
      if(NOT DEFINED LLVM_INSTALL_PACKAGE_DIR)
1126
          message(FATAL_ERROR "LLVM_INSTALL_PACKAGE_DIR must be defined and writable. GEN_CONFIG should only be passe when building LLVM proper.")
1127
      endif()
1128
      # LLVM_INSTALL_PACKAGE_DIR might be absolute, so don't reuse below.
1129
      string(REPLACE "${CMAKE_CFG_INTDIR}" "." llvm_cmake_builddir "${LLVM_LIBRARY_DIR}")
1130
      set(llvm_cmake_builddir "${llvm_cmake_builddir}/cmake/llvm")
1131
      file(WRITE
1132
          "${llvm_cmake_builddir}/LLVMConfigExtensions.cmake"
1133
          "set(LLVM_STATIC_EXTENSIONS ${LLVM_STATIC_EXTENSIONS})")
1134
      install(FILES
1135
          ${llvm_cmake_builddir}/LLVMConfigExtensions.cmake
1136
          DESTINATION ${LLVM_INSTALL_PACKAGE_DIR}
1137
          COMPONENT cmake-exports)
1138
 
1139
      set(ExtensionDef "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def")
1140
      file(WRITE "${ExtensionDef}.tmp" "//extension handlers\n")
1141
      foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
1142
          file(APPEND "${ExtensionDef}.tmp" "HANDLE_EXTENSION(${llvm_extension})\n")
1143
      endforeach()
1144
      file(APPEND "${ExtensionDef}.tmp" "#undef HANDLE_EXTENSION\n")
1145
 
1146
      # only replace if there's an actual change
1147
      execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
1148
          "${ExtensionDef}.tmp"
1149
          "${ExtensionDef}")
1150
      file(REMOVE "${ExtensionDef}.tmp")
1151
 
1152
      ## Part 2: Extension header that captures each extension dependency, to be
1153
      #  used by llvm-config.
1154
      set(ExtensionDeps "${LLVM_BINARY_DIR}/tools/llvm-config/ExtensionDependencies.inc")
1155
 
1156
      # Max needed to correctly size the required library array.
1157
      set(llvm_plugin_max_deps_length 0)
1158
      foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
1159
        get_property(llvm_plugin_deps TARGET ${llvm_extension} PROPERTY LINK_LIBRARIES)
1160
        list(LENGTH llvm_plugin_deps llvm_plugin_deps_length)
1161
        if(llvm_plugin_deps_length GREATER llvm_plugin_max_deps_length)
1162
            set(llvm_plugin_max_deps_length ${llvm_plugin_deps_length})
1163
        endif()
1164
      endforeach()
1165
 
1166
      list(LENGTH LLVM_STATIC_EXTENSIONS llvm_static_extension_count)
1167
      file(WRITE
1168
          "${ExtensionDeps}.tmp"
1169
          "#include <array>\n\
1170
           struct ExtensionDescriptor {\n\
1171
              const char* Name;\n\
1172
              const char* RequiredLibraries[1 + 1 + ${llvm_plugin_max_deps_length}];\n\
1173
           };\n\
1174
           std::array<ExtensionDescriptor, ${llvm_static_extension_count}> AvailableExtensions{\n")
1175
 
1176
      foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
1177
        get_property(llvm_plugin_deps TARGET ${llvm_extension} PROPERTY LINK_LIBRARIES)
1178
 
1179
        file(APPEND "${ExtensionDeps}.tmp" "ExtensionDescriptor{\"${llvm_extension}\", {")
1180
        foreach(llvm_plugin_dep ${llvm_plugin_deps})
1181
            # Turn library dependency back to component name, if possible.
1182
            # That way llvm-config can avoid redundant dependencies.
1183
            STRING(REGEX REPLACE "^-l" ""  plugin_dep_name ${llvm_plugin_dep})
1184
            STRING(REGEX MATCH "^LLVM" is_llvm_library ${plugin_dep_name})
1185
            if(is_llvm_library)
1186
                STRING(REGEX REPLACE "^LLVM" ""  plugin_dep_name ${plugin_dep_name})
1187
                STRING(TOLOWER ${plugin_dep_name} plugin_dep_name)
1188
            endif()
1189
            file(APPEND "${ExtensionDeps}.tmp" "\"${plugin_dep_name}\", ")
1190
        endforeach()
1191
 
1192
        # Self + mandatory trailing null, because the number of RequiredLibraries differs between extensions.
1193
        file(APPEND "${ExtensionDeps}.tmp" \"${llvm_extension}\", "nullptr}},\n")
1194
      endforeach()
1195
      file(APPEND "${ExtensionDeps}.tmp" "};\n")
1196
 
1197
      # only replace if there's an actual change
1198
      execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
1199
          "${ExtensionDeps}.tmp"
1200
          "${ExtensionDeps}")
1201
      file(REMOVE "${ExtensionDeps}.tmp")
1202
  endif()
1203
endfunction()
1204
 
1205
function(export_executable_symbols target)
1206
  if (LLVM_EXPORTED_SYMBOL_FILE)
1207
    # The symbol file should contain the symbols we want the executable to
1208
    # export
1209
    set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
1210
  elseif (LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
1211
    # Extract the symbols to export from the static libraries that the
1212
    # executable links against.
1213
    set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
1214
    set(exported_symbol_file ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${target}.symbols)
1215
    # We need to consider not just the direct link dependencies, but also the
1216
    # transitive link dependencies. Do this by starting with the set of direct
1217
    # dependencies, then the dependencies of those dependencies, and so on.
1218
    get_target_property(new_libs ${target} LINK_LIBRARIES)
1219
    set(link_libs ${new_libs})
1220
    while(NOT "${new_libs}" STREQUAL "")
1221
      foreach(lib ${new_libs})
1222
        if(TARGET ${lib})
1223
          get_target_property(lib_type ${lib} TYPE)
1224
          if("${lib_type}" STREQUAL "STATIC_LIBRARY")
1225
            list(APPEND static_libs ${lib})
1226
          else()
1227
            list(APPEND other_libs ${lib})
1228
          endif()
1229
          get_target_property(transitive_libs ${lib} INTERFACE_LINK_LIBRARIES)
1230
          foreach(transitive_lib ${transitive_libs})
1231
            if(TARGET ${transitive_lib} AND NOT ${transitive_lib} IN_LIST link_libs)
1232
              list(APPEND newer_libs ${transitive_lib})
1233
              list(APPEND link_libs ${transitive_lib})
1234
            endif()
1235
          endforeach(transitive_lib)
1236
        endif()
1237
      endforeach(lib)
1238
      set(new_libs ${newer_libs})
1239
      set(newer_libs "")
1240
    endwhile()
1241
    list(REMOVE_DUPLICATES static_libs)
1242
    if (MSVC)
1243
      set(mangling microsoft)
1244
    else()
1245
      set(mangling itanium)
1246
    endif()
1247
    add_custom_command(OUTPUT ${exported_symbol_file}
1248
                       COMMAND "${Python3_EXECUTABLE}" ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py ${LLVM_EXTRACT_SYMBOLS_FLAGS} --mangling=${mangling} ${static_libs} -o ${exported_symbol_file}
1249
                       WORKING_DIRECTORY ${LLVM_LIBRARY_OUTPUT_INTDIR}
1250
                       DEPENDS ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py ${static_libs}
1251
                       VERBATIM
1252
                       COMMENT "Generating export list for ${target}")
1253
    add_llvm_symbol_exports( ${target} ${exported_symbol_file} )
1254
    # If something links against this executable then we want a
1255
    # transitive link against only the libraries whose symbols
1256
    # we aren't exporting.
1257
    set_target_properties(${target} PROPERTIES INTERFACE_LINK_LIBRARIES "${other_libs}")
1258
    # The default import library suffix that cmake uses for cygwin/mingw is
1259
    # ".dll.a", but for clang.exe that causes a collision with libclang.dll,
1260
    # where the import libraries of both get named libclang.dll.a. Use a suffix
1261
    # of ".exe.a" to avoid this.
1262
    if(CYGWIN OR MINGW)
1263
      set_target_properties(${target} PROPERTIES IMPORT_SUFFIX ".exe.a")
1264
    endif()
1265
  elseif(NOT (WIN32 OR CYGWIN))
1266
    # On Windows auto-exporting everything doesn't work because of the limit on
1267
    # the size of the exported symbol table, but on other platforms we can do
1268
    # it without any trouble.
1269
    set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
1270
    if (APPLE)
1271
      set_property(TARGET ${target} APPEND_STRING PROPERTY
1272
        LINK_FLAGS " -rdynamic")
1273
    endif()
1274
  endif()
1275
endfunction()
1276
 
1277
# Export symbols if LLVM plugins are enabled.
1278
function(export_executable_symbols_for_plugins target)
1279
  if(LLVM_ENABLE_PLUGINS OR LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
1280
    export_executable_symbols(${target})
1281
  endif()
1282
endfunction()
1283
 
1284
if(NOT LLVM_TOOLCHAIN_TOOLS)
1285
  set (LLVM_TOOLCHAIN_TOOLS
1286
    llvm-ar
1287
    llvm-cov
1288
    llvm-cxxfilt
1289
    llvm-dwp
1290
    llvm-ranlib
1291
    llvm-lib
1292
    llvm-ml
1293
    llvm-nm
1294
    llvm-objcopy
1295
    llvm-objdump
1296
    llvm-pdbutil
1297
    llvm-rc
1298
    llvm-readobj
1299
    llvm-size
1300
    llvm-strings
1301
    llvm-strip
1302
    llvm-profdata
1303
    llvm-symbolizer
1304
    # symlink version of some of above tools that are enabled by
1305
    # LLVM_INSTALL_BINUTILS_SYMLINKS.
1306
    addr2line
1307
    ar
1308
    c++filt
1309
    ranlib
1310
    nm
1311
    objcopy
1312
    objdump
1313
    readelf
1314
    size
1315
    strings
1316
    strip
1317
    )
1318
endif()
1319
 
1320
macro(llvm_add_tool project name)
1321
  cmake_parse_arguments(ARG "DEPENDS;GENERATE_DRIVER" "" "" ${ARGN})
1322
  if( NOT LLVM_BUILD_TOOLS )
1323
    set(EXCLUDE_FROM_ALL ON)
1324
  endif()
1325
  if(ARG_GENERATE_DRIVER
1326
     AND LLVM_TOOL_LLVM_DRIVER_BUILD
1327
     AND (NOT LLVM_DISTRIBUTION_COMPONENTS OR ${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS)
1328
    )
1329
    generate_llvm_objects(${name} ${ARGN})
1330
    add_custom_target(${name} DEPENDS llvm-driver)
1331
  else()
1332
    add_llvm_executable(${name} ${ARGN})
1333
 
1334
    if ( ${name} IN_LIST LLVM_TOOLCHAIN_TOOLS OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
1335
      if( LLVM_BUILD_TOOLS )
1336
        get_target_export_arg(${name} LLVM export_to_llvmexports)
1337
        install(TARGETS ${name}
1338
                ${export_to_llvmexports}
1339
                RUNTIME DESTINATION ${${project}_TOOLS_INSTALL_DIR}
1340
                COMPONENT ${name})
1341
 
1342
        if (NOT LLVM_ENABLE_IDE)
1343
          add_llvm_install_targets(install-${name}
1344
                                  DEPENDS ${name}
1345
                                  COMPONENT ${name})
1346
        endif()
1347
      endif()
1348
    endif()
1349
    if( LLVM_BUILD_TOOLS )
1350
      set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
1351
    endif()
1352
    set_target_properties(${name} PROPERTIES FOLDER "Tools")
1353
  endif()
1354
endmacro(llvm_add_tool project name)
1355
 
1356
macro(add_llvm_tool name)
1357
  llvm_add_tool(LLVM ${ARGV})
1358
endmacro()
1359
 
1360
 
1361
macro(add_llvm_example name)
1362
  if( NOT LLVM_BUILD_EXAMPLES )
1363
    set(EXCLUDE_FROM_ALL ON)
1364
  endif()
1365
  add_llvm_executable(${name} ${ARGN})
1366
  if( LLVM_BUILD_EXAMPLES )
1367
    install(TARGETS ${name} RUNTIME DESTINATION "${LLVM_EXAMPLES_INSTALL_DIR}")
1368
  endif()
1369
  set_target_properties(${name} PROPERTIES FOLDER "Examples")
1370
endmacro(add_llvm_example name)
1371
 
1372
macro(add_llvm_example_library name)
1373
  if( NOT LLVM_BUILD_EXAMPLES )
1374
    set(EXCLUDE_FROM_ALL ON)
1375
    add_llvm_library(${name} BUILDTREE_ONLY ${ARGN})
1376
  else()
1377
    add_llvm_library(${name} ${ARGN})
1378
  endif()
1379
 
1380
  set_target_properties(${name} PROPERTIES FOLDER "Examples")
1381
endmacro(add_llvm_example_library name)
1382
 
1383
# This is a macro that is used to create targets for executables that are needed
1384
# for development, but that are not intended to be installed by default.
1385
macro(add_llvm_utility name)
1386
  if ( NOT LLVM_BUILD_UTILS )
1387
    set(EXCLUDE_FROM_ALL ON)
1388
  endif()
1389
 
1390
  add_llvm_executable(${name} DISABLE_LLVM_LINK_LLVM_DYLIB ${ARGN})
1391
  set_target_properties(${name} PROPERTIES FOLDER "Utils")
1392
  if ( ${name} IN_LIST LLVM_TOOLCHAIN_UTILITIES OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
1393
    if (LLVM_INSTALL_UTILS AND LLVM_BUILD_UTILS)
1394
      get_target_export_arg(${name} LLVM export_to_llvmexports)
1395
      install(TARGETS ${name}
1396
              ${export_to_llvmexports}
1397
              RUNTIME DESTINATION ${LLVM_UTILS_INSTALL_DIR}
1398
              COMPONENT ${name})
1399
 
1400
      if (NOT LLVM_ENABLE_IDE)
1401
        add_llvm_install_targets(install-${name}
1402
                                 DEPENDS ${name}
1403
                                 COMPONENT ${name})
1404
      endif()
1405
      set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
1406
    elseif(LLVM_BUILD_UTILS)
1407
      set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS_BUILDTREE_ONLY ${name})
1408
    endif()
1409
  endif()
1410
endmacro(add_llvm_utility name)
1411
 
1412
macro(add_llvm_fuzzer name)
1413
  cmake_parse_arguments(ARG "" "DUMMY_MAIN" "" ${ARGN})
1414
  if( LLVM_LIB_FUZZING_ENGINE )
1415
    set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
1416
    add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
1417
    target_link_libraries(${name} PRIVATE ${LLVM_LIB_FUZZING_ENGINE})
1418
    set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
1419
  elseif( LLVM_USE_SANITIZE_COVERAGE )
1420
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer")
1421
    set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
1422
    add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
1423
    set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
1424
  elseif( ARG_DUMMY_MAIN )
1425
    add_llvm_executable(${name} ${ARG_DUMMY_MAIN} ${ARG_UNPARSED_ARGUMENTS})
1426
    set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
1427
  endif()
1428
endmacro()
1429
 
1430
macro(add_llvm_target target_name)
1431
  include_directories(BEFORE
1432
    ${CMAKE_CURRENT_BINARY_DIR}
1433
    ${CMAKE_CURRENT_SOURCE_DIR})
1434
  add_llvm_component_library(LLVM${target_name} ${ARGN})
1435
  set( CURRENT_LLVM_TARGET LLVM${target_name} )
1436
endmacro(add_llvm_target)
1437
 
1438
function(canonicalize_tool_name name output)
1439
  string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" "" nameStrip ${name})
1440
  string(REPLACE "-" "_" nameUNDERSCORE ${nameStrip})
1441
  string(TOUPPER ${nameUNDERSCORE} nameUPPER)
1442
  set(${output} "${nameUPPER}" PARENT_SCOPE)
1443
endfunction(canonicalize_tool_name)
1444
 
1445
# Custom add_subdirectory wrapper
1446
# Takes in a project name (i.e. LLVM), the subdirectory name, and an optional
1447
# path if it differs from the name.
1448
function(add_llvm_subdirectory project type name)
1449
  set(add_llvm_external_dir "${ARGN}")
1450
  if("${add_llvm_external_dir}" STREQUAL "")
1451
    set(add_llvm_external_dir ${name})
1452
  endif()
1453
  canonicalize_tool_name(${name} nameUPPER)
1454
  set(canonical_full_name ${project}_${type}_${nameUPPER})
1455
  get_property(already_processed GLOBAL PROPERTY ${canonical_full_name}_PROCESSED)
1456
  if(already_processed)
1457
    return()
1458
  endif()
1459
  set_property(GLOBAL PROPERTY ${canonical_full_name}_PROCESSED YES)
1460
 
1461
  if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}/CMakeLists.txt)
1462
    # Treat it as in-tree subproject.
1463
    option(${canonical_full_name}_BUILD
1464
           "Whether to build ${name} as part of ${project}" On)
1465
    mark_as_advanced(${project}_${type}_${name}_BUILD)
1466
    if(${canonical_full_name}_BUILD)
1467
      add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir} ${add_llvm_external_dir})
1468
    endif()
1469
  else()
1470
    set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR
1471
      "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}"
1472
      CACHE PATH "Path to ${name} source directory")
1473
    set(${canonical_full_name}_BUILD_DEFAULT ON)
1474
    if(NOT LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR OR NOT EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
1475
      set(${canonical_full_name}_BUILD_DEFAULT OFF)
1476
    endif()
1477
    if("${LLVM_EXTERNAL_${nameUPPER}_BUILD}" STREQUAL "OFF")
1478
      set(${canonical_full_name}_BUILD_DEFAULT OFF)
1479
    endif()
1480
    option(${canonical_full_name}_BUILD
1481
      "Whether to build ${name} as part of LLVM"
1482
      ${${canonical_full_name}_BUILD_DEFAULT})
1483
    if (${canonical_full_name}_BUILD)
1484
      if(EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
1485
        add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
1486
      elseif(NOT "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" STREQUAL "")
1487
        message(WARNING "Nonexistent directory for ${name}: ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}")
1488
      endif()
1489
    endif()
1490
  endif()
1491
endfunction()
1492
 
1493
# Add external project that may want to be built as part of llvm such as Clang,
1494
# lld, and Polly. This adds two options. One for the source directory of the
1495
# project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
1496
# enable or disable building it with everything else.
1497
# Additional parameter can be specified as the name of directory.
1498
macro(add_llvm_external_project name)
1499
  add_llvm_subdirectory(LLVM TOOL ${name} ${ARGN})
1500
endmacro()
1501
 
1502
macro(add_llvm_tool_subdirectory name)
1503
  add_llvm_external_project(${name})
1504
endmacro(add_llvm_tool_subdirectory)
1505
 
1506
function(get_project_name_from_src_var var output)
1507
  string(REGEX MATCH "LLVM_EXTERNAL_(.*)_SOURCE_DIR"
1508
         MACHED_TOOL "${var}")
1509
  if(MACHED_TOOL)
1510
    set(${output} ${CMAKE_MATCH_1} PARENT_SCOPE)
1511
  else()
1512
    set(${output} PARENT_SCOPE)
1513
  endif()
1514
endfunction()
1515
 
1516
function(create_subdirectory_options project type)
1517
  file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
1518
  foreach(dir ${sub-dirs})
1519
    if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
1520
      canonicalize_tool_name(${dir} name)
1521
      option(${project}_${type}_${name}_BUILD
1522
           "Whether to build ${name} as part of ${project}" On)
1523
      mark_as_advanced(${project}_${type}_${name}_BUILD)
1524
    endif()
1525
  endforeach()
1526
endfunction(create_subdirectory_options)
1527
 
1528
function(create_llvm_tool_options)
1529
  create_subdirectory_options(LLVM TOOL)
1530
endfunction(create_llvm_tool_options)
1531
 
1532
function(llvm_add_implicit_projects project)
1533
  set(list_of_implicit_subdirs "")
1534
  file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
1535
  foreach(dir ${sub-dirs})
1536
    if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
1537
      canonicalize_tool_name(${dir} name)
1538
      # I don't like special casing things by order, but the llvm-driver ends up
1539
      # linking the object libraries from all the tools that opt-in, so adding
1540
      # it separately at the end is probably the simplest case.
1541
      if("${name}" STREQUAL "LLVM_DRIVER")
1542
        continue()
1543
      endif()
1544
      if (${project}_TOOL_${name}_BUILD)
1545
        get_filename_component(fn "${dir}" NAME)
1546
        list(APPEND list_of_implicit_subdirs "${fn}")
1547
      endif()
1548
    endif()
1549
  endforeach()
1550
 
1551
  foreach(external_proj ${list_of_implicit_subdirs})
1552
    add_llvm_subdirectory(${project} TOOL "${external_proj}" ${ARGN})
1553
  endforeach()
1554
endfunction(llvm_add_implicit_projects)
1555
 
1556
function(add_llvm_implicit_projects)
1557
  llvm_add_implicit_projects(LLVM)
1558
endfunction(add_llvm_implicit_projects)
1559
 
1560
# Generic support for adding a unittest.
1561
function(add_unittest test_suite test_name)
1562
  if( NOT LLVM_BUILD_TESTS )
1563
    set(EXCLUDE_FROM_ALL ON)
1564
  endif()
1565
 
1566
  if (SUPPORTS_VARIADIC_MACROS_FLAG)
1567
    list(APPEND LLVM_COMPILE_FLAGS "-Wno-variadic-macros")
1568
  endif ()
1569
  # Some parts of gtest rely on this GNU extension, don't warn on it.
1570
  if(SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG)
1571
    list(APPEND LLVM_COMPILE_FLAGS "-Wno-gnu-zero-variadic-macro-arguments")
1572
  endif()
1573
 
1574
  if (NOT DEFINED LLVM_REQUIRES_RTTI)
1575
    set(LLVM_REQUIRES_RTTI OFF)
1576
  endif()
1577
 
1578
  list(APPEND LLVM_LINK_COMPONENTS Support) # gtest needs it for raw_ostream
1579
  add_llvm_executable(${test_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN})
1580
 
1581
  # The runtime benefits of LTO don't outweight the compile time costs for tests.
1582
  if(LLVM_ENABLE_LTO)
1583
    if((UNIX OR MINGW) AND LINKER_IS_LLD)
1584
      set_property(TARGET ${test_name} APPEND_STRING PROPERTY
1585
                    LINK_FLAGS " -Wl,--lto-O0")
1586
    elseif(LINKER_IS_LLD_LINK)
1587
      set_property(TARGET ${test_name} APPEND_STRING PROPERTY
1588
                    LINK_FLAGS " /opt:lldlto=0")
1589
    elseif(APPLE AND NOT uppercase_LLVM_ENABLE_LTO STREQUAL "THIN")
1590
      set_property(TARGET ${target_name} APPEND_STRING PROPERTY
1591
                    LINK_FLAGS " -Wl,-mllvm,-O0")
1592
    endif()
1593
  endif()
1594
 
1595
  set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
1596
  set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
1597
  # libpthreads overrides some standard library symbols, so main
1598
  # executable must be linked with it in order to provide consistent
1599
  # API for all shared libaries loaded by this executable.
1600
  target_link_libraries(${test_name} PRIVATE llvm_gtest_main llvm_gtest ${LLVM_PTHREAD_LIB})
1601
 
1602
  add_dependencies(${test_suite} ${test_name})
1603
  get_target_property(test_suite_folder ${test_suite} FOLDER)
1604
  if (test_suite_folder)
1605
    set_property(TARGET ${test_name} PROPERTY FOLDER "${test_suite_folder}")
1606
  endif ()
1607
endfunction()
1608
 
1609
# Use for test binaries that call llvm::getInputFileDirectory(). Use of this
1610
# is discouraged.
1611
function(add_unittest_with_input_files test_suite test_name)
1612
  set(LLVM_UNITTEST_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
1613
  configure_file(
1614
    ${LLVM_MAIN_SRC_DIR}/unittests/unittest.cfg.in
1615
    ${CMAKE_CURRENT_BINARY_DIR}/llvm.srcdir.txt)
1616
 
1617
  add_unittest(${test_suite} ${test_name} ${ARGN})
1618
endfunction()
1619
 
1620
# Generic support for adding a benchmark.
1621
function(add_benchmark benchmark_name)
1622
  if( NOT LLVM_BUILD_BENCHMARKS )
1623
    set(EXCLUDE_FROM_ALL ON)
1624
  endif()
1625
 
1626
  add_llvm_executable(${benchmark_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN})
1627
  set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
1628
  set_output_directory(${benchmark_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
1629
  set_property(TARGET ${benchmark_name} PROPERTY FOLDER "Utils")
1630
  target_link_libraries(${benchmark_name} PRIVATE benchmark)
1631
endfunction()
1632
 
1633
# This function canonicalize the CMake variables passed by names
1634
# from CMake boolean to 0/1 suitable for passing into Python or C++,
1635
# in place.
1636
function(llvm_canonicalize_cmake_booleans)
1637
  foreach(var ${ARGN})
1638
    if(${var})
1639
      set(${var} 1 PARENT_SCOPE)
1640
    else()
1641
      set(${var} 0 PARENT_SCOPE)
1642
    endif()
1643
  endforeach()
1644
endfunction(llvm_canonicalize_cmake_booleans)
1645
 
1646
macro(set_llvm_build_mode)
1647
  # Configuration-time: See Unit/lit.site.cfg.in
1648
  if (CMAKE_CFG_INTDIR STREQUAL ".")
1649
    set(LLVM_BUILD_MODE ".")
1650
  else ()
1651
    set(LLVM_BUILD_MODE "%(build_mode)s")
1652
  endif ()
1653
endmacro()
1654
 
1655
# Takes a list of path names in pathlist and a base directory, and returns
1656
# a list of paths relative to the base directory in out_pathlist.
1657
# Paths that are on a different drive than the basedir (on Windows) or that
1658
# contain symlinks are returned absolute.
1659
# Use with LLVM_LIT_PATH_FUNCTION below.
1660
function(make_paths_relative out_pathlist basedir pathlist)
1661
  # Passing ARG_PATH_VALUES as-is to execute_process() makes cmake strip
1662
  # empty list entries. So escape the ;s in the list and do the splitting
1663
  # ourselves. cmake has no relpath function, so use Python for that.
1664
  string(REPLACE ";" "\\;" pathlist_escaped "${pathlist}")
1665
  execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "\n
1666
import os, sys\n
1667
base = sys.argv[1]
1668
def haslink(p):\n
1669
    if not p or p == os.path.dirname(p): return False\n
1670
    return os.path.islink(p) or haslink(os.path.dirname(p))\n
1671
def relpath(p):\n
1672
    if not p: return ''\n
1673
    if os.path.splitdrive(p)[0] != os.path.splitdrive(base)[0]: return p\n
1674
    if haslink(p) or haslink(base): return p\n
1675
    return os.path.relpath(p, base)\n
1676
if len(sys.argv) < 3: sys.exit(0)\n
1677
sys.stdout.write(';'.join(relpath(p) for p in sys.argv[2].split(';')))"
1678
    ${basedir}
1679
    ${pathlist_escaped}
1680
    OUTPUT_VARIABLE pathlist_relative
1681
    ERROR_VARIABLE error
1682
    RESULT_VARIABLE result)
1683
  if (NOT result EQUAL 0)
1684
    message(FATAL_ERROR "make_paths_relative() failed due to error '${result}', with stderr\n${error}")
1685
  endif()
1686
  set(${out_pathlist} "${pathlist_relative}" PARENT_SCOPE)
1687
endfunction()
1688
 
1689
# Converts a file that's relative to the current python file to an absolute
1690
# path. Since this uses __file__, it has to be emitted into python files that
1691
# use it and can't be in a lit module. Use with make_paths_relative().
1692
string(CONCAT LLVM_LIT_PATH_FUNCTION
1693
  "# Allow generated file to be relocatable.\n"
1694
  "from pathlib import Path\n"
1695
  "def path(p):\n"
1696
  "    if not p: return ''\n"
1697
  "    return str((Path(__file__).parent / p).resolve())\n"
1698
  )
1699
 
1700
# This function provides an automatic way to 'configure'-like generate a file
1701
# based on a set of common and custom variables, specifically targeting the
1702
# variables needed for the 'lit.site.cfg' files. This function bundles the
1703
# common variables that any Lit instance is likely to need, and custom
1704
# variables can be passed in.
1705
# The keyword PATHS is followed by a list of cmake variable names that are
1706
# mentioned as `path("@varname@")` in the lit.cfg.py.in file. Variables in that
1707
# list are treated as paths that are relative to the directory the generated
1708
# lit.cfg.py file is in, and the `path()` function converts the relative
1709
# path back to absolute form. This makes it possible to move a build directory
1710
# containing lit.cfg.py files from one machine to another.
1711
function(configure_lit_site_cfg site_in site_out)
1712
  cmake_parse_arguments(ARG "" "" "MAIN_CONFIG;PATHS" ${ARGN})
1713
 
1714
  if ("${ARG_MAIN_CONFIG}" STREQUAL "")
1715
    get_filename_component(INPUT_DIR ${site_in} DIRECTORY)
1716
    set(ARG_MAIN_CONFIG "${INPUT_DIR}/lit.cfg")
1717
  endif()
1718
 
1719
  foreach(c ${LLVM_TARGETS_TO_BUILD})
1720
    set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
1721
  endforeach(c)
1722
  set(TARGETS_TO_BUILD ${TARGETS_BUILT})
1723
 
1724
  set(SHLIBEXT "${LTDL_SHLIB_EXT}")
1725
 
1726
  set_llvm_build_mode()
1727
 
1728
  # For standalone builds of subprojects, these might not be the build tree but
1729
  # a provided binary tree.
1730
  set(LLVM_SOURCE_DIR ${LLVM_MAIN_SRC_DIR})
1731
  set(LLVM_BINARY_DIR ${LLVM_BINARY_DIR})
1732
  string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" LLVM_TOOLS_DIR "${LLVM_TOOLS_BINARY_DIR}")
1733
  string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" LLVM_LIBS_DIR  "${LLVM_LIBRARY_DIR}")
1734
  # Like LLVM_{TOOLS,LIBS}_DIR, but pointing at the build tree.
1735
  string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" CURRENT_TOOLS_DIR "${LLVM_RUNTIME_OUTPUT_INTDIR}")
1736
  string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" CURRENT_LIBS_DIR  "${LLVM_LIBRARY_OUTPUT_INTDIR}")
1737
  string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" SHLIBDIR "${LLVM_SHLIB_OUTPUT_INTDIR}")
1738
 
1739
  # FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for
1740
  # plugins. We may rename it.
1741
  if(LLVM_ENABLE_PLUGINS)
1742
    set(ENABLE_SHARED "1")
1743
  else()
1744
    set(ENABLE_SHARED "0")
1745
  endif()
1746
 
1747
  if(LLVM_ENABLE_ASSERTIONS)
1748
    set(ENABLE_ASSERTIONS "1")
1749
  else()
1750
    set(ENABLE_ASSERTIONS "0")
1751
  endif()
1752
 
1753
  set(HOST_OS ${CMAKE_SYSTEM_NAME})
1754
  set(HOST_ARCH ${CMAKE_SYSTEM_PROCESSOR})
1755
 
1756
  set(HOST_CC "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}")
1757
  set(HOST_CXX "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}")
1758
  set(HOST_LDFLAGS "${CMAKE_EXE_LINKER_FLAGS}")
1759
 
1760
  string(CONCAT LIT_SITE_CFG_IN_HEADER
1761
    "# Autogenerated from ${site_in}\n# Do not edit!\n\n"
1762
    "${LLVM_LIT_PATH_FUNCTION}"
1763
    )
1764
 
1765
  # Override config_target_triple (and the env)
1766
  if(LLVM_TARGET_TRIPLE_ENV)
1767
    # This is expanded into the heading.
1768
    string(CONCAT LIT_SITE_CFG_IN_HEADER "${LIT_SITE_CFG_IN_HEADER}"
1769
      "import os\n"
1770
      "target_env = \"${LLVM_TARGET_TRIPLE_ENV}\"\n"
1771
      "config.target_triple = config.environment[target_env] = os.environ.get(target_env, \"${LLVM_TARGET_TRIPLE}\")\n"
1772
      )
1773
 
1774
    # This is expanded to; config.target_triple = ""+config.target_triple+""
1775
    set(LLVM_TARGET_TRIPLE "\"+config.target_triple+\"")
1776
  endif()
1777
 
1778
  if (ARG_PATHS)
1779
    # Walk ARG_PATHS and collect the current value of the variables in there.
1780
    # list(APPEND) ignores empty elements exactly if the list is empty,
1781
    # so start the list with a dummy element and drop it, to make sure that
1782
    # even empty values make it into the values list.
1783
    set(ARG_PATH_VALUES "dummy")
1784
    foreach(path ${ARG_PATHS})
1785
      list(APPEND ARG_PATH_VALUES "${${path}}")
1786
    endforeach()
1787
    list(REMOVE_AT ARG_PATH_VALUES 0)
1788
 
1789
    get_filename_component(OUTPUT_DIR ${site_out} DIRECTORY)
1790
    make_paths_relative(
1791
        ARG_PATH_VALUES_RELATIVE "${OUTPUT_DIR}" "${ARG_PATH_VALUES}")
1792
 
1793
    list(LENGTH ARG_PATHS len_paths)
1794
    list(LENGTH ARG_PATH_VALUES len_path_values)
1795
    list(LENGTH ARG_PATH_VALUES_RELATIVE len_path_value_rels)
1796
    if ((NOT ${len_paths} EQUAL ${len_path_values}) OR
1797
        (NOT ${len_paths} EQUAL ${len_path_value_rels}))
1798
      message(SEND_ERROR "PATHS lengths got confused")
1799
    endif()
1800
 
1801
    # Transform variables mentioned in ARG_PATHS to relative paths for
1802
    # the configure_file() call. Variables are copied to subscopeds by cmake,
1803
    # so this only modifies the local copy of the variables.
1804
    math(EXPR arg_path_limit "${len_paths} - 1")
1805
    foreach(i RANGE ${arg_path_limit})
1806
      list(GET ARG_PATHS ${i} val1)
1807
      list(GET ARG_PATH_VALUES_RELATIVE ${i} val2)
1808
      set(${val1} ${val2})
1809
    endforeach()
1810
  endif()
1811
 
1812
  configure_file(${site_in} ${site_out} @ONLY)
1813
 
1814
  if (EXISTS "${ARG_MAIN_CONFIG}")
1815
    # Remember main config / generated site config for llvm-lit.in.
1816
    get_property(LLVM_LIT_CONFIG_FILES GLOBAL PROPERTY LLVM_LIT_CONFIG_FILES)
1817
    list(APPEND LLVM_LIT_CONFIG_FILES "${ARG_MAIN_CONFIG}" "${site_out}")
1818
    set_property(GLOBAL PROPERTY LLVM_LIT_CONFIG_FILES ${LLVM_LIT_CONFIG_FILES})
1819
  endif()
1820
endfunction()
1821
 
1822
function(dump_all_cmake_variables)
1823
  get_cmake_property(_variableNames VARIABLES)
1824
  foreach (_variableName ${_variableNames})
1825
    message(STATUS "${_variableName}=${${_variableName}}")
1826
  endforeach()
1827
endfunction()
1828
 
1829
function(get_llvm_lit_path base_dir file_name)
1830
  cmake_parse_arguments(ARG "ALLOW_EXTERNAL" "" "" ${ARGN})
1831
 
1832
  if (ARG_ALLOW_EXTERNAL)
1833
    set (LLVM_EXTERNAL_LIT "" CACHE STRING "Command used to spawn lit")
1834
    if ("${LLVM_EXTERNAL_LIT}" STREQUAL "")
1835
      set(LLVM_EXTERNAL_LIT "${LLVM_DEFAULT_EXTERNAL_LIT}")
1836
    endif()
1837
 
1838
    if (NOT "${LLVM_EXTERNAL_LIT}" STREQUAL "")
1839
      if (EXISTS ${LLVM_EXTERNAL_LIT})
1840
        get_filename_component(LIT_FILE_NAME ${LLVM_EXTERNAL_LIT} NAME)
1841
        get_filename_component(LIT_BASE_DIR ${LLVM_EXTERNAL_LIT} DIRECTORY)
1842
        set(${file_name} ${LIT_FILE_NAME} PARENT_SCOPE)
1843
        set(${base_dir} ${LIT_BASE_DIR} PARENT_SCOPE)
1844
        return()
1845
      elseif (NOT DEFINED CACHE{LLVM_EXTERNAL_LIT_MISSING_WARNED_ONCE})
1846
        message(WARNING "LLVM_EXTERNAL_LIT set to ${LLVM_EXTERNAL_LIT}, but the path does not exist.")
1847
        set(LLVM_EXTERNAL_LIT_MISSING_WARNED_ONCE YES CACHE INTERNAL "")
1848
      endif()
1849
    endif()
1850
  endif()
1851
 
1852
  set(lit_file_name "llvm-lit")
1853
  if (CMAKE_HOST_WIN32 AND NOT CYGWIN)
1854
    # llvm-lit needs suffix.py for multiprocess to find a main module.
1855
    set(lit_file_name "${lit_file_name}.py")
1856
  endif ()
1857
  set(${file_name} ${lit_file_name} PARENT_SCOPE)
1858
 
1859
  get_property(LLVM_LIT_BASE_DIR GLOBAL PROPERTY LLVM_LIT_BASE_DIR)
1860
  if (NOT "${LLVM_LIT_BASE_DIR}" STREQUAL "")
1861
    set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE)
1862
  endif()
1863
 
1864
  # Allow individual projects to provide an override
1865
  if (NOT "${LLVM_LIT_OUTPUT_DIR}" STREQUAL "")
1866
    set(LLVM_LIT_BASE_DIR ${LLVM_LIT_OUTPUT_DIR})
1867
  elseif(NOT "${LLVM_RUNTIME_OUTPUT_INTDIR}" STREQUAL "")
1868
    set(LLVM_LIT_BASE_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
1869
  else()
1870
    set(LLVM_LIT_BASE_DIR "")
1871
  endif()
1872
 
1873
  # Cache this so we don't have to do it again and have subsequent calls
1874
  # potentially disagree on the value.
1875
  set_property(GLOBAL PROPERTY LLVM_LIT_BASE_DIR ${LLVM_LIT_BASE_DIR})
1876
  set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE)
1877
endfunction()
1878
 
1879
# A raw function to create a lit target. This is used to implement the testuite
1880
# management functions.
1881
function(add_lit_target target comment)
1882
  cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
1883
  set(LIT_ARGS "${ARG_ARGS} ${LLVM_LIT_ARGS}")
1884
  separate_arguments(LIT_ARGS)
1885
  if (NOT CMAKE_CFG_INTDIR STREQUAL ".")
1886
    list(APPEND LIT_ARGS --param build_mode=${CMAKE_CFG_INTDIR})
1887
  endif ()
1888
 
1889
  # Get the path to the lit to *run* tests with.  This can be overriden by
1890
  # the user by specifying -DLLVM_EXTERNAL_LIT=<path-to-lit.py>
1891
  get_llvm_lit_path(
1892
    lit_base_dir
1893
    lit_file_name
1894
    ALLOW_EXTERNAL
1895
    )
1896
 
1897
  set(LIT_COMMAND "${Python3_EXECUTABLE};${lit_base_dir}/${lit_file_name}")
1898
  list(APPEND LIT_COMMAND ${LIT_ARGS})
1899
  foreach(param ${ARG_PARAMS})
1900
    list(APPEND LIT_COMMAND --param ${param})
1901
  endforeach()
1902
  if (ARG_UNPARSED_ARGUMENTS)
1903
    add_custom_target(${target}
1904
      COMMAND ${LIT_COMMAND} ${ARG_UNPARSED_ARGUMENTS}
1905
      COMMENT "${comment}"
1906
      USES_TERMINAL
1907
      )
1908
  else()
1909
    add_custom_target(${target}
1910
      COMMAND ${CMAKE_COMMAND} -E echo "${target} does nothing, no tools built.")
1911
    message(STATUS "${target} does nothing.")
1912
  endif()
1913
 
1914
  if (ARG_DEPENDS)
1915
    add_dependencies(${target} ${ARG_DEPENDS})
1916
  endif()
1917
 
1918
  # Tests should be excluded from "Build Solution".
1919
  set_target_properties(${target} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD ON)
1920
endfunction()
1921
 
1922
# Convert a target name like check-clang to a variable name like CLANG.
1923
function(umbrella_lit_testsuite_var target outvar)
1924
  if (NOT target MATCHES "^check-")
1925
    message(FATAL_ERROR "umbrella lit suites must be check-*, not '${target}'")
1926
  endif()
1927
  string(SUBSTRING "${target}" 6 -1 var)
1928
  string(REPLACE "-" "_" var ${var})
1929
  string(TOUPPER "${var}" var)
1930
  set(${outvar} "${var}" PARENT_SCOPE)
1931
endfunction()
1932
 
1933
# Start recording all lit test suites for a combined 'check-foo' target.
1934
# The recording continues until umbrella_lit_testsuite_end() creates the target.
1935
function(umbrella_lit_testsuite_begin target)
1936
  umbrella_lit_testsuite_var(${target} name)
1937
  set_property(GLOBAL APPEND PROPERTY LLVM_LIT_UMBRELLAS ${name})
1938
endfunction()
1939
 
1940
# Create a combined 'check-foo' target for a set of related test suites.
1941
# It runs all suites added since the matching umbrella_lit_testsuite_end() call.
1942
# Tests marked EXCLUDE_FROM_CHECK_ALL are not gathered.
1943
function(umbrella_lit_testsuite_end target)
1944
  umbrella_lit_testsuite_var(${target} name)
1945
 
1946
  get_property(testsuites GLOBAL PROPERTY LLVM_${name}_LIT_TESTSUITES)
1947
  get_property(params GLOBAL PROPERTY LLVM_${name}_LIT_PARAMS)
1948
  get_property(depends GLOBAL PROPERTY LLVM_${name}_LIT_DEPENDS)
1949
  get_property(extra_args GLOBAL PROPERTY LLVM_${name}_LIT_EXTRA_ARGS)
1950
  # Additional test targets are not gathered, but may be set externally.
1951
  get_property(additional_test_targets
1952
               GLOBAL PROPERTY LLVM_${name}_ADDITIONAL_TEST_TARGETS)
1953
 
1954
  string(TOLOWER ${name} name)
1955
  add_lit_target(${target}
1956
    "Running ${name} regression tests"
1957
    ${testsuites}
1958
    PARAMS ${params}
1959
    DEPENDS ${depends} ${additional_test_targets}
1960
    ARGS ${extra_args}
1961
    )
1962
endfunction()
1963
 
1964
# A function to add a set of lit test suites to be driven through 'check-*' targets.
1965
function(add_lit_testsuite target comment)
1966
  cmake_parse_arguments(ARG "EXCLUDE_FROM_CHECK_ALL" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
1967
 
1968
  # EXCLUDE_FROM_ALL excludes the test ${target} out of check-all.
1969
  if(NOT ARG_EXCLUDE_FROM_CHECK_ALL)
1970
    get_property(gather_names GLOBAL PROPERTY LLVM_LIT_UMBRELLAS)
1971
    foreach(name ${gather_names})
1972
    # Register the testsuites, params and depends for the umbrella check rule.
1973
      set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_TESTSUITES ${ARG_UNPARSED_ARGUMENTS})
1974
      set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_PARAMS ${ARG_PARAMS})
1975
      set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_DEPENDS ${ARG_DEPENDS})
1976
      set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_EXTRA_ARGS ${ARG_ARGS})
1977
    endforeach()
1978
  endif()
1979
 
1980
  # Produce a specific suffixed check rule.
1981
  add_lit_target(${target} ${comment}
1982
    ${ARG_UNPARSED_ARGUMENTS}
1983
    PARAMS ${ARG_PARAMS}
1984
    DEPENDS ${ARG_DEPENDS}
1985
    ARGS ${ARG_ARGS}
1986
    )
1987
endfunction()
1988
 
1989
function(add_lit_testsuites project directory)
1990
  if (NOT LLVM_ENABLE_IDE)
1991
    cmake_parse_arguments(ARG "EXCLUDE_FROM_CHECK_ALL" "FOLDER" "PARAMS;DEPENDS;ARGS" ${ARGN})
1992
 
1993
    if (NOT ARG_FOLDER)
1994
      set(ARG_FOLDER "Test Subdirectories")
1995
    endif()
1996
 
1997
    # Search recursively for test directories by assuming anything not
1998
    # in a directory called Inputs contains tests.
1999
    file(GLOB_RECURSE to_process LIST_DIRECTORIES true ${directory}/*)
2000
    foreach(lit_suite ${to_process})
2001
      if(NOT IS_DIRECTORY ${lit_suite})
2002
        continue()
2003
      endif()
2004
      string(FIND ${lit_suite} Inputs is_inputs)
2005
      string(FIND ${lit_suite} Output is_output)
2006
      if (NOT (is_inputs EQUAL -1 AND is_output EQUAL -1))
2007
        continue()
2008
      endif()
2009
 
2010
      # Create a check- target for the directory.
2011
      string(REPLACE ${directory} "" name_slash ${lit_suite})
2012
      if (name_slash)
2013
        string(REPLACE "/" "-" name_slash ${name_slash})
2014
        string(REPLACE "\\" "-" name_dashes ${name_slash})
2015
        string(TOLOWER "${project}${name_dashes}" name_var)
2016
        add_lit_target("check-${name_var}" "Running lit suite ${lit_suite}"
2017
          ${lit_suite}
2018
          ${EXCLUDE_FROM_CHECK_ALL}
2019
          PARAMS ${ARG_PARAMS}
2020
          DEPENDS ${ARG_DEPENDS}
2021
          ARGS ${ARG_ARGS}
2022
        )
2023
        set_target_properties(check-${name_var} PROPERTIES FOLDER ${ARG_FOLDER})
2024
      endif()
2025
    endforeach()
2026
  endif()
2027
endfunction()
2028
 
2029
function(llvm_install_library_symlink name dest type)
2030
  cmake_parse_arguments(ARG "" "COMPONENT" "" ${ARGN})
2031
  foreach(path ${CMAKE_MODULE_PATH})
2032
    if(EXISTS ${path}/LLVMInstallSymlink.cmake)
2033
      set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
2034
      break()
2035
    endif()
2036
  endforeach()
2037
 
2038
  set(component ${ARG_COMPONENT})
2039
  if(NOT component)
2040
    set(component ${name})
2041
  endif()
2042
 
2043
  set(full_name ${CMAKE_${type}_LIBRARY_PREFIX}${name}${CMAKE_${type}_LIBRARY_SUFFIX})
2044
  set(full_dest ${CMAKE_${type}_LIBRARY_PREFIX}${dest}${CMAKE_${type}_LIBRARY_SUFFIX})
2045
 
2046
  set(output_dir lib${LLVM_LIBDIR_SUFFIX})
2047
  if(WIN32 AND "${type}" STREQUAL "SHARED")
2048
    set(output_dir "${CMAKE_INSTALL_BINDIR}")
2049
  endif()
2050
 
2051
  install(SCRIPT ${INSTALL_SYMLINK}
2052
          CODE "install_symlink(\"${full_name}\" \"${full_dest}\" \"${output_dir}\")"
2053
          COMPONENT ${component})
2054
 
2055
endfunction()
2056
 
2057
function(llvm_install_symlink project name dest)
2058
  get_property(LLVM_DRIVER_TOOLS GLOBAL PROPERTY LLVM_DRIVER_TOOLS)
2059
  if(LLVM_TOOL_LLVM_DRIVER_BUILD
2060
     AND ${dest} IN_LIST LLVM_DRIVER_TOOLS
2061
     AND (NOT LLVM_DISTRIBUTION_COMPONENTS OR ${dest} IN_LIST LLVM_DISTRIBUTION_COMPONENTS)
2062
    )
2063
    return()
2064
  endif()
2065
  cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN})
2066
  foreach(path ${CMAKE_MODULE_PATH})
2067
    if(EXISTS ${path}/LLVMInstallSymlink.cmake)
2068
      set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
2069
      break()
2070
    endif()
2071
  endforeach()
2072
 
2073
  if(ARG_COMPONENT)
2074
    set(component ${ARG_COMPONENT})
2075
  else()
2076
    if(ARG_ALWAYS_GENERATE)
2077
      set(component ${dest})
2078
    else()
2079
      set(component ${name})
2080
    endif()
2081
  endif()
2082
 
2083
  set(full_name ${name}${CMAKE_EXECUTABLE_SUFFIX})
2084
  set(full_dest ${dest}${CMAKE_EXECUTABLE_SUFFIX})
2085
  if (${dest} STREQUAL "llvm-driver")
2086
    set(full_dest llvm${CMAKE_EXECUTABLE_SUFFIX})
2087
  endif()
2088
 
2089
  set(output_dir "${${project}_TOOLS_INSTALL_DIR}")
2090
 
2091
  install(SCRIPT ${INSTALL_SYMLINK}
2092
          CODE "install_symlink(\"${full_name}\" \"${full_dest}\" \"${output_dir}\")"
2093
          COMPONENT ${component})
2094
 
2095
  if (NOT LLVM_ENABLE_IDE AND NOT ARG_ALWAYS_GENERATE)
2096
    add_llvm_install_targets(install-${name}
2097
                             DEPENDS ${name} ${dest}
2098
                             COMPONENT ${name}
2099
                             SYMLINK ${dest})
2100
  endif()
2101
endfunction()
2102
 
2103
function(llvm_add_tool_symlink project link_name target)
2104
  cmake_parse_arguments(ARG "ALWAYS_GENERATE" "OUTPUT_DIR" "" ${ARGN})
2105
 
2106
  get_property(LLVM_DRIVER_TOOLS GLOBAL PROPERTY LLVM_DRIVER_TOOLS)
2107
 
2108
  if (${target} IN_LIST LLVM_DRIVER_TOOLS)
2109
    set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_TOOL_ALIASES_${target} ${link_name})
2110
  endif()
2111
  set(dest_binary "$<TARGET_FILE:${target}>")
2112
 
2113
  # This got a bit gross... For multi-configuration generators the target
2114
  # properties return the resolved value of the string, not the build system
2115
  # expression. To reconstruct the platform-agnostic path we have to do some
2116
  # magic. First we grab one of the types, and a type-specific path. Then from
2117
  # the type-specific path we find the last occurrence of the type in the path,
2118
  # and replace it with CMAKE_CFG_INTDIR. This allows the build step to be type
2119
  # agnostic again.
2120
  if(NOT ARG_OUTPUT_DIR)
2121
    # If you're not overriding the OUTPUT_DIR, we can make the link relative in
2122
    # the same directory.
2123
    if(LLVM_USE_SYMLINKS)
2124
      set(dest_binary "$<TARGET_FILE_NAME:${target}>")
2125
    endif()
2126
    if(CMAKE_CONFIGURATION_TYPES)
2127
      list(GET CMAKE_CONFIGURATION_TYPES 0 first_type)
2128
      string(TOUPPER ${first_type} first_type_upper)
2129
      set(first_type_suffix _${first_type_upper})
2130
    endif()
2131
    get_target_property(target_type ${target} TYPE)
2132
    if(${target_type} STREQUAL "STATIC_LIBRARY")
2133
      get_target_property(ARG_OUTPUT_DIR ${target} ARCHIVE_OUTPUT_DIRECTORY${first_type_suffix})
2134
    elseif(UNIX AND ${target_type} STREQUAL "SHARED_LIBRARY")
2135
      get_target_property(ARG_OUTPUT_DIR ${target} LIBRARY_OUTPUT_DIRECTORY${first_type_suffix})
2136
    else()
2137
      get_target_property(ARG_OUTPUT_DIR ${target} RUNTIME_OUTPUT_DIRECTORY${first_type_suffix})
2138
    endif()
2139
    if(CMAKE_CONFIGURATION_TYPES)
2140
      string(FIND "${ARG_OUTPUT_DIR}" "/${first_type}/" type_start REVERSE)
2141
      string(SUBSTRING "${ARG_OUTPUT_DIR}" 0 ${type_start} path_prefix)
2142
      string(SUBSTRING "${ARG_OUTPUT_DIR}" ${type_start} -1 path_suffix)
2143
      string(REPLACE "/${first_type}/" "/${CMAKE_CFG_INTDIR}/"
2144
             path_suffix ${path_suffix})
2145
      set(ARG_OUTPUT_DIR ${path_prefix}${path_suffix})
2146
    endif()
2147
  endif()
2148
 
2149
  if(LLVM_USE_SYMLINKS)
2150
    set(LLVM_LINK_OR_COPY create_symlink)
2151
  else()
2152
    set(LLVM_LINK_OR_COPY copy)
2153
  endif()
2154
 
2155
  set(output_path "${ARG_OUTPUT_DIR}/${link_name}${CMAKE_EXECUTABLE_SUFFIX}")
2156
 
2157
  set(target_name ${link_name})
2158
  if(TARGET ${link_name})
2159
    set(target_name ${link_name}-link)
2160
  endif()
2161
 
2162
 
2163
  if(ARG_ALWAYS_GENERATE)
2164
    set_property(DIRECTORY APPEND PROPERTY
2165
      ADDITIONAL_MAKE_CLEAN_FILES ${dest_binary})
2166
    add_custom_command(TARGET ${target} POST_BUILD
2167
      COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}")
2168
  else()
2169
    add_custom_command(OUTPUT ${output_path}
2170
                     COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}"
2171
                     DEPENDS ${target})
2172
 
2173
    # TODO: Make use of generator expressions below once CMake 3.19 or higher is the minimum supported version.
2174
    set(should_build_all)
2175
    get_target_property(target_excluded_from_all ${target} EXCLUDE_FROM_ALL)
2176
    if (NOT target_excluded_from_all)
2177
      set(should_build_all ALL)
2178
    endif()
2179
    add_custom_target(${target_name} ${should_build_all} DEPENDS ${target} ${output_path})
2180
    set_target_properties(${target_name} PROPERTIES FOLDER Tools)
2181
 
2182
    # Make sure both the link and target are toolchain tools
2183
    if (${link_name} IN_LIST LLVM_TOOLCHAIN_TOOLS AND ${target} IN_LIST LLVM_TOOLCHAIN_TOOLS)
2184
      set(TOOL_IS_TOOLCHAIN ON)
2185
    endif()
2186
 
2187
    if ((TOOL_IS_TOOLCHAIN OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY) AND LLVM_BUILD_TOOLS)
2188
      llvm_install_symlink("${project}" ${link_name} ${target})
2189
    endif()
2190
  endif()
2191
endfunction()
2192
 
2193
function(add_llvm_tool_symlink link_name target)
2194
  llvm_add_tool_symlink(LLVM ${ARGV})
2195
endfunction()
2196
 
2197
function(llvm_externalize_debuginfo name)
2198
  if(NOT LLVM_EXTERNALIZE_DEBUGINFO)
2199
    return()
2200
  endif()
2201
 
2202
  if(NOT LLVM_EXTERNALIZE_DEBUGINFO_SKIP_STRIP)
2203
    if(APPLE)
2204
      if(NOT CMAKE_STRIP)
2205
        set(CMAKE_STRIP xcrun strip)
2206
      endif()
2207
      set(strip_command COMMAND ${CMAKE_STRIP} -S -x $<TARGET_FILE:${name}>)
2208
    else()
2209
      set(strip_command COMMAND ${CMAKE_STRIP} -g -x $<TARGET_FILE:${name}>)
2210
    endif()
2211
  endif()
2212
 
2213
  if(APPLE)
2214
    if(LLVM_EXTERNALIZE_DEBUGINFO_EXTENSION)
2215
      set(file_ext ${LLVM_EXTERNALIZE_DEBUGINFO_EXTENSION})
2216
    else()
2217
      set(file_ext dSYM)
2218
    endif()
2219
 
2220
    set(output_name "$<TARGET_FILE_NAME:${name}>.${file_ext}")
2221
 
2222
    if(LLVM_EXTERNALIZE_DEBUGINFO_OUTPUT_DIR)
2223
      set(output_path "-o=${LLVM_EXTERNALIZE_DEBUGINFO_OUTPUT_DIR}/${output_name}")
2224
    else()
2225
      set(output_path "-o=${output_name}")
2226
    endif()
2227
 
2228
    if(CMAKE_CXX_FLAGS MATCHES "-flto"
2229
      OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto")
2230
 
2231
      set(lto_object ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}-lto.o)
2232
      set_property(TARGET ${name} APPEND_STRING PROPERTY
2233
        LINK_FLAGS " -Wl,-object_path_lto,${lto_object}")
2234
    endif()
2235
    if(NOT CMAKE_DSYMUTIL)
2236
      set(CMAKE_DSYMUTIL xcrun dsymutil)
2237
    endif()
2238
    add_custom_command(TARGET ${name} POST_BUILD
2239
      COMMAND ${CMAKE_DSYMUTIL} ${output_path} $<TARGET_FILE:${name}>
2240
      ${strip_command}
2241
      )
2242
  else()
2243
    add_custom_command(TARGET ${name} POST_BUILD
2244
      COMMAND ${CMAKE_OBJCOPY} --only-keep-debug $<TARGET_FILE:${name}> $<TARGET_FILE:${name}>.debug
2245
      ${strip_command} -R .gnu_debuglink
2246
      COMMAND ${CMAKE_OBJCOPY} --add-gnu-debuglink=$<TARGET_FILE:${name}>.debug $<TARGET_FILE:${name}>
2247
      )
2248
  endif()
2249
endfunction()
2250
 
2251
# Usage: llvm_codesign(name [FORCE] [ENTITLEMENTS file] [BUNDLE_PATH path])
2252
function(llvm_codesign name)
2253
  cmake_parse_arguments(ARG "FORCE" "ENTITLEMENTS;BUNDLE_PATH" "" ${ARGN})
2254
 
2255
  if(NOT LLVM_CODESIGNING_IDENTITY)
2256
    return()
2257
  endif()
2258
 
2259
  if(CMAKE_GENERATOR STREQUAL "Xcode")
2260
    set_target_properties(${name} PROPERTIES
2261
      XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ${LLVM_CODESIGNING_IDENTITY}
2262
    )
2263
    if(DEFINED ARG_ENTITLEMENTS)
2264
      set_target_properties(${name} PROPERTIES
2265
        XCODE_ATTRIBUTE_CODE_SIGN_ENTITLEMENTS ${ARG_ENTITLEMENTS}
2266
      )
2267
    endif()
2268
  elseif(APPLE AND CMAKE_HOST_SYSTEM_NAME MATCHES Darwin)
2269
    if(NOT CMAKE_CODESIGN)
2270
      set(CMAKE_CODESIGN xcrun codesign)
2271
    endif()
2272
    if(NOT CMAKE_CODESIGN_ALLOCATE)
2273
      execute_process(
2274
        COMMAND xcrun -f codesign_allocate
2275
        OUTPUT_STRIP_TRAILING_WHITESPACE
2276
        OUTPUT_VARIABLE CMAKE_CODESIGN_ALLOCATE
2277
      )
2278
    endif()
2279
    if(DEFINED ARG_ENTITLEMENTS)
2280
      set(pass_entitlements --entitlements ${ARG_ENTITLEMENTS})
2281
    endif()
2282
 
2283
    if (NOT ARG_BUNDLE_PATH)
2284
      set(ARG_BUNDLE_PATH $<TARGET_FILE:${name}>)
2285
    endif()
2286
 
2287
    # ld64 now always codesigns the binaries it creates. Apply the force arg
2288
    # unconditionally so that we can - for example - add entitlements to the
2289
    # targets that need it.
2290
    set(force_flag "-f")
2291
 
2292
    add_custom_command(
2293
      TARGET ${name} POST_BUILD
2294
      COMMAND ${CMAKE_COMMAND} -E
2295
              env CODESIGN_ALLOCATE=${CMAKE_CODESIGN_ALLOCATE}
2296
              ${CMAKE_CODESIGN} -s ${LLVM_CODESIGNING_IDENTITY}
2297
              ${pass_entitlements} ${force_flag} ${ARG_BUNDLE_PATH}
2298
    )
2299
  endif()
2300
endfunction()
2301
 
2302
function(llvm_setup_rpath name)
2303
  if(CMAKE_INSTALL_RPATH)
2304
    return()
2305
  endif()
2306
 
2307
  if(LLVM_INSTALL_PREFIX AND NOT (LLVM_INSTALL_PREFIX STREQUAL CMAKE_INSTALL_PREFIX))
2308
    set(extra_libdir ${LLVM_LIBRARY_DIR})
2309
  elseif(LLVM_BUILD_LIBRARY_DIR)
2310
    set(extra_libdir ${LLVM_LIBRARY_DIR})
2311
  endif()
2312
 
2313
  if (APPLE)
2314
    set(_install_name_dir INSTALL_NAME_DIR "@rpath")
2315
    set(_install_rpath "@loader_path/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
2316
  elseif(${CMAKE_SYSTEM_NAME} MATCHES "AIX" AND BUILD_SHARED_LIBS)
2317
    # $ORIGIN is not interpreted at link time by aix ld.
2318
    # Since BUILD_SHARED_LIBS is only recommended for use by developers,
2319
    # hardcode the rpath to build/install lib dir first in this mode.
2320
    # FIXME: update this when there is better solution.
2321
    set(_install_rpath "${LLVM_LIBRARY_OUTPUT_INTDIR}" "${CMAKE_INSTALL_PREFIX}/lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
2322
  elseif(UNIX)
2323
    set(_build_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
2324
    set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}")
2325
    if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
2326
      set_property(TARGET ${name} APPEND_STRING PROPERTY
2327
                   LINK_FLAGS " -Wl,-z,origin ")
2328
    endif()
2329
    if(LLVM_LINKER_IS_GNULD)
2330
      # $ORIGIN is not interpreted at link time by ld.bfd
2331
      set_property(TARGET ${name} APPEND_STRING PROPERTY
2332
                   LINK_FLAGS " -Wl,-rpath-link,${LLVM_LIBRARY_OUTPUT_INTDIR} ")
2333
    endif()
2334
  else()
2335
    return()
2336
  endif()
2337
 
2338
  # Enable BUILD_WITH_INSTALL_RPATH unless CMAKE_BUILD_RPATH is set and not
2339
  # building for macOS or AIX, as those platforms seemingly require it.
2340
  # On AIX, the tool chain doesn't support modifying rpaths/libpaths for XCOFF
2341
  # on install at the moment, so BUILD_WITH_INSTALL_RPATH is required.
2342
  if("${CMAKE_BUILD_RPATH}" STREQUAL "")
2343
    if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin|AIX")
2344
      set_property(TARGET ${name} PROPERTY BUILD_WITH_INSTALL_RPATH ON)
2345
    else()
2346
      set_property(TARGET ${name} APPEND PROPERTY BUILD_RPATH "${_build_rpath}")
2347
    endif()
2348
  endif()
2349
 
2350
  set_target_properties(${name} PROPERTIES
2351
                        INSTALL_RPATH "${_install_rpath}"
2352
                        ${_install_name_dir})
2353
endfunction()
2354
 
2355
function(setup_dependency_debugging name)
2356
  if(NOT LLVM_DEPENDENCY_DEBUGGING)
2357
    return()
2358
  endif()
2359
 
2360
  if("intrinsics_gen" IN_LIST ARGN)
2361
    return()
2362
  endif()
2363
 
2364
  set(deny_attributes_inc "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Attributes.inc\"))")
2365
  set(deny_intrinsics_inc "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Intrinsics.inc\"))")
2366
 
2367
  set(sandbox_command "sandbox-exec -p '(version 1) (allow default) ${deny_attributes_inc} ${deny_intrinsics_inc}'")
2368
  set_target_properties(${name} PROPERTIES RULE_LAUNCH_COMPILE ${sandbox_command})
2369
endfunction()
2370
 
2371
# If the sources at the given `path` are under version control, set `out_var`
2372
# to the the path of a file which will be modified when the VCS revision
2373
# changes, attempting to create that file if it does not exist; if no such
2374
# file exists and one cannot be created, instead set `out_var` to the
2375
# empty string.
2376
#
2377
# If the sources are not under version control, do not define `out_var`.
2378
function(find_first_existing_vc_file path out_var)
2379
  if(NOT EXISTS "${path}")
2380
    return()
2381
  endif()
2382
  find_package(Git)
2383
  if(GIT_FOUND)
2384
    execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --git-dir
2385
      WORKING_DIRECTORY ${path}
2386
      RESULT_VARIABLE git_result
2387
      OUTPUT_VARIABLE git_output
2388
      ERROR_QUIET)
2389
    if(git_result EQUAL 0)
2390
      string(STRIP "${git_output}" git_output)
2391
      get_filename_component(git_dir ${git_output} ABSOLUTE BASE_DIR ${path})
2392
      # Some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD
2393
      if (NOT EXISTS "${git_dir}/logs/HEAD")
2394
        execute_process(COMMAND ${CMAKE_COMMAND} -E touch HEAD
2395
          WORKING_DIRECTORY "${git_dir}/logs"
2396
          RESULT_VARIABLE touch_head_result
2397
          ERROR_QUIET)
2398
        if (NOT touch_head_result EQUAL 0)
2399
          set(${out_var} "" PARENT_SCOPE)
2400
          return()
2401
        endif()
2402
      endif()
2403
      set(${out_var} "${git_dir}/logs/HEAD" PARENT_SCOPE)
2404
    endif()
2405
  endif()
2406
endfunction()
2407
 
2408
function(setup_host_tool tool_name setting_name exe_var_name target_var_name)
2409
  set(${setting_name}_DEFAULT "${tool_name}")
2410
 
2411
  if(LLVM_NATIVE_TOOL_DIR)
2412
    if(EXISTS "${LLVM_NATIVE_TOOL_DIR}/${tool_name}${LLVM_HOST_EXECUTABLE_SUFFIX}")
2413
      set(${setting_name}_DEFAULT "${LLVM_NATIVE_TOOL_DIR}/${tool_name}${LLVM_HOST_EXECUTABLE_SUFFIX}")
2414
    endif()
2415
  endif()
2416
 
2417
  set(${setting_name} "${${setting_name}_DEFAULT}" CACHE
2418
    STRING "Host ${tool_name} executable. Saves building if cross-compiling.")
2419
 
2420
  if(NOT ${setting_name} STREQUAL "${tool_name}")
2421
    set(exe_name ${${setting_name}})
2422
    set(target_name ${${setting_name}})
2423
  elseif(LLVM_USE_HOST_TOOLS)
2424
    build_native_tool(${tool_name} exe_name DEPENDS ${tool_name})
2425
    set(target_name ${exe_name})
2426
  else()
2427
    set(exe_name $<TARGET_FILE:${tool_name}>)
2428
    set(target_name ${tool_name})
2429
  endif()
2430
  set(${exe_var_name} "${exe_name}" CACHE STRING "")
2431
  set(${target_var_name} "${target_name}" CACHE STRING "")
2432
endfunction()