/
CMakeLists.txt
1445 lines (1189 loc) · 53 KB
/
CMakeLists.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
cmake_minimum_required(VERSION 3.19.6)
# set_property(GLOBAL PROPERTY GLOBAL_DEPENDS_DEBUG_MODE 1)
# TODO: Fix RPATH usage to be CMP0068 compliant
# Disable Policy CMP0068 for CMake 3.9
# rdar://37725888
if(POLICY CMP0068)
cmake_policy(SET CMP0068 OLD)
endif()
# Honour CMAKE_CXX_STANDARD in try_compile(), needed for check_cxx_native_regex.
if(POLICY CMP0067)
cmake_policy(SET CMP0067 NEW)
endif()
# Convert relative paths to absolute for subdirectory `target_sources`
if(POLICY CMP0076)
cmake_policy(SET CMP0076 NEW)
endif()
# Don't clobber existing variable values when evaluating `option()` declarations.
if(POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
# Add path for custom CMake modules.
list(APPEND CMAKE_MODULE_PATH
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
set(CMAKE_DISABLE_IN_SOURCE_BUILD YES)
if(DEFINED CMAKE_JOB_POOLS)
# CMake < 3.11 doesn't support CMAKE_JOB_POOLS. Manually set the property.
set_property(GLOBAL PROPERTY JOB_POOLS "${CMAKE_JOB_POOLS}")
else()
# Make a job pool for things that can't yet be distributed
cmake_host_system_information(
RESULT localhost_logical_cores QUERY NUMBER_OF_LOGICAL_CORES)
set_property(GLOBAL APPEND PROPERTY JOB_POOLS local_jobs=${localhost_logical_cores})
# Put linking in that category
set(CMAKE_JOB_POOL_LINK local_jobs)
endif()
enable_language(C)
enable_language(CXX)
# On Windows, use MASM or MARMASM
set(SWIFT_ASM_DIALECT ASM)
set(SWIFT_ASM_EXT S)
set(SWIFT_ASM_AVAILABLE YES)
if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
if(CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64")
if(CMAKE_VERSION VERSION_LESS "3.26")
message(WARNING "We can't build assembly language for ARM64 until CMake 3.26")
set(SWIFT_ASM_AVAILABLE NO)
else()
set(SWIFT_ASM_DIALECT ASM_MARMASM)
endif()
else()
set(SWIFT_ASM_DIALECT ASM_MASM)
endif()
set(SWIFT_ASM_EXT asm)
endif()
if(SWIFT_ASM_AVAILABLE)
enable_language(${SWIFT_ASM_DIALECT})
endif()
# Use C++17.
set(SWIFT_MIN_CXX_STANDARD 17)
# Unset CMAKE_CXX_STANDARD if it's too low and in the CMakeCache.txt
if($CACHE{CMAKE_CXX_STANDARD} AND $CACHE{CMAKE_CXX_STANDARD} LESS ${SWIFT_MIN_CXX_STANDARD})
message(WARNING "Resetting cache value for CMAKE_CXX_STANDARD to ${SWIFT_MIN_CXX_STANDARD}")
unset(CMAKE_CXX_STANDARD CACHE)
endif()
# Allow manually specified CMAKE_CXX_STANDARD if it's greater than the minimum
# required C++ version
if(DEFINED CMAKE_CXX_STANDARD AND CMAKE_CXX_STANDARD LESS ${SWIFT_MIN_CXX_STANDARD})
message(FATAL_ERROR "Requested CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD} which is less than the minimum C++ standard ${SWIFT_MIN_CXX_STANDARD}")
endif()
set(CMAKE_CXX_STANDARD ${SWIFT_MIN_CXX_STANDARD} CACHE STRING "C++ standard to conform to")
set(CMAKE_CXX_STANDARD_REQUIRED YES)
set(CMAKE_CXX_EXTENSIONS NO)
# First include general CMake utilities.
include(SwiftUtils)
include(CheckSymbolExists)
include(CMakeDependentOption)
include(CheckLanguage)
include(GNUInstallDirs)
include(SwiftImplicitImport)
include(FetchContent)
# Enable Swift for the host compiler build if we have the language. It is
# optional until we have a bootstrap story.
check_language(Swift)
if(CMAKE_Swift_COMPILER)
enable_language(Swift)
else()
message(STATUS "WARNING! Did not find a host compiler swift?! Can not build
any compiler host sources written in Swift")
endif()
# A convenience pattern to match Darwin platforms. Example:
# if(SWIFT_HOST_VARIANT MATCHES "${SWIFT_DARWIN_VARIANTS}")
# ...
# endif()
set(SWIFT_DARWIN_VARIANTS "^(macosx|iphoneos|iphonesimulator|appletvos|appletvsimulator|watchos|watchsimulator)")
set(SWIFT_DARWIN_EMBEDDED_VARIANTS "^(iphoneos|iphonesimulator|appletvos|appletvsimulator|watchos|watchsimulator)")
# A convenient list to match Darwin SDKs. Example:
# if("${SWIFT_HOST_VARIANT_SDK}" IN_LIST SWIFT_DARWIN_PLATFORMS)
# ...
# endif()
set(SWIFT_DARWIN_PLATFORMS "IOS" "IOS_SIMULATOR" "TVOS" "TVOS_SIMULATOR" "WATCHOS" "WATCHOS_SIMULATOR" "OSX")
set(SWIFT_APPLE_PLATFORMS ${SWIFT_DARWIN_PLATFORMS})
if(SWIFT_FREESTANDING_FLAVOR STREQUAL "apple")
list(APPEND SWIFT_APPLE_PLATFORMS "FREESTANDING")
if(SWIFT_FREESTANDING_IS_DARWIN)
list(APPEND SWIFT_DARWIN_PLATFORMS "FREESTANDING")
endif()
endif()
# If SWIFT_HOST_VARIANT_SDK not given, try to detect from the CMAKE_SYSTEM_NAME.
if(SWIFT_HOST_VARIANT_SDK)
set(SWIFT_HOST_VARIANT_SDK_default "${SWIFT_HOST_VARIANT_SDK}")
else()
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
set(SWIFT_HOST_VARIANT_SDK_default "LINUX")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "FreeBSD")
set(SWIFT_HOST_VARIANT_SDK_default "FREEBSD")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "OpenBSD")
set(SWIFT_HOST_VARIANT_SDK_default "OPENBSD")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "CYGWIN")
set(SWIFT_HOST_VARIANT_SDK_default "CYGWIN")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
set(SWIFT_HOST_VARIANT_SDK_default "WINDOWS")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Haiku")
set(SWIFT_HOST_VARIANT_SDK_default "HAIKU")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Android")
set(SWIFT_HOST_VARIANT_SDK_default "ANDROID")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(SWIFT_HOST_VARIANT_SDK_default "OSX")
else()
message(FATAL_ERROR "Unable to detect SDK for host system: ${CMAKE_SYSTEM_NAME}")
endif()
endif()
# If SWIFT_HOST_VARIANT_ARCH not given, try to detect from the CMAKE_SYSTEM_PROCESSOR.
if(SWIFT_HOST_VARIANT_ARCH)
set(SWIFT_HOST_VARIANT_ARCH_default "${SWIFT_HOST_VARIANT_ARCH}")
else()
if(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|AMD64|amd64")
set(SWIFT_HOST_VARIANT_ARCH_default "x86_64")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|ARM64|arm64")
if(SWIFT_HOST_VARIANT_SDK_default STREQUAL "OSX")
set(SWIFT_HOST_VARIANT_ARCH_default "arm64")
else()
set(SWIFT_HOST_VARIANT_ARCH_default "aarch64")
endif()
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "ppc64")
set(SWIFT_HOST_VARIANT_ARCH_default "powerpc64")
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "ppc")
set(SWIFT_HOST_VARIANT_ARCH_default "powerpc")
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "ppc64le")
set(SWIFT_HOST_VARIANT_ARCH_default "powerpc64le")
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "s390x")
set(SWIFT_HOST_VARIANT_ARCH_default "s390x")
elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "armv5|armv5te")
set(SWIFT_HOST_VARIANT_ARCH_default "armv5")
# FIXME: Only matches v6l/v7l - by far the most common variants
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "armv6l")
set(SWIFT_HOST_VARIANT_ARCH_default "armv6")
elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "armv7l|armv7-a")
set(SWIFT_HOST_VARIANT_ARCH_default "armv7")
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "IA64")
set(SWIFT_HOST_VARIANT_ARCH_default "itanium")
elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(x86|i686)")
set(SWIFT_HOST_VARIANT_ARCH_default "i686")
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "wasm32")
set(SWIFT_HOST_VARIANT_ARCH_default "wasm32")
else()
message(FATAL_ERROR "Unrecognized architecture on host system: ${CMAKE_SYSTEM_PROCESSOR}")
endif()
endif()
set(SWIFT_HOST_VARIANT_SDK "${SWIFT_HOST_VARIANT_SDK_default}" CACHE STRING
"Deployment sdk for Swift host tools (the compiler).")
set(SWIFT_HOST_VARIANT_ARCH "${SWIFT_HOST_VARIANT_ARCH_default}" CACHE STRING
"Deployment arch for Swift host tools (the compiler).")
#
# User-configurable options that control the inclusion and default build
# behavior for components which may not strictly be necessary (tools, examples,
# and tests).
#
# This is primarily to support building smaller or faster project files.
#
option(SWIFT_APPEND_VC_REV
"Embed the version control system revision in Swift"
TRUE)
option(SWIFT_INCLUDE_TOOLS
"Generate build targets for swift tools"
TRUE)
option(SWIFT_BUILD_REMOTE_MIRROR
"Build the Swift Remote Mirror Library"
TRUE)
option(SWIFT_BUILD_DYNAMIC_STDLIB
"Build dynamic variants of the Swift standard library"
TRUE)
option(SWIFT_BUILD_STATIC_STDLIB
"Build static variants of the Swift standard library"
FALSE)
option(SWIFT_STDLIB_STATIC_PRINT
"Build compile-time evaluated vprintf()"
FALSE)
option(SWIFT_STDLIB_ENABLE_UNICODE_DATA
"Include Unicode data files in the standard library.
NOTE: Disabling this will cause many String methods to crash."
TRUE)
option(SWIFT_BUILD_DYNAMIC_SDK_OVERLAY
"Build dynamic variants of the Swift SDK overlay"
TRUE)
option(SWIFT_BUILD_STATIC_SDK_OVERLAY
"Build static variants of the Swift SDK overlay"
FALSE)
option(SWIFT_BUILD_STDLIB_EXTRA_TOOLCHAIN_CONTENT
"If not building stdlib, controls whether to build 'stdlib/toolchain' content"
TRUE)
option(SWIFT_BUILD_STDLIB_CXX_MODULE
"If not building stdlib, controls whether to build the Cxx module"
TRUE)
# In many cases, the CMake build system needs to determine whether to include
# a directory, or perform other actions, based on whether the stdlib or SDK is
# being built at all -- statically or dynamically. Please note that these
# flags are not related to the deprecated build-script-impl arguments
# 'build-swift-stdlib' and 'build-swift-sdk-overlay'. These are not flags that
# the build script should be able to set.
if(SWIFT_BUILD_DYNAMIC_STDLIB OR SWIFT_BUILD_STATIC_STDLIB)
set(SWIFT_BUILD_STDLIB TRUE)
else()
set(SWIFT_BUILD_STDLIB FALSE)
endif()
if(SWIFT_BUILD_DYNAMIC_SDK_OVERLAY OR SWIFT_BUILD_STATIC_SDK_OVERLAY)
set(SWIFT_BUILD_SDK_OVERLAY TRUE)
else()
set(SWIFT_BUILD_SDK_OVERLAY FALSE)
endif()
option(SWIFT_BUILD_PERF_TESTSUITE
"Create in-tree targets for building swift performance benchmarks."
FALSE)
option(SWIFT_INCLUDE_TESTS "Create targets for building/running tests." TRUE)
option(SWIFT_INCLUDE_TEST_BINARIES
"Create targets for building/running test binaries even if SWIFT_INCLUDE_TESTS is disabled"
TRUE)
option(SWIFT_INCLUDE_DOCS
"Create targets for building docs."
TRUE)
set(_swift_include_apinotes_default FALSE)
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
set(_swift_include_apinotes_default TRUE)
endif()
option(SWIFT_INCLUDE_APINOTES
"Create targets for installing the remaining apinotes in the built toolchain."
${_swift_include_apinotes_default})
#
# Miscellaneous User-configurable options.
#
# TODO: Please categorize these!
#
if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
set(CMAKE_BUILD_TYPE "Debug" CACHE STRING
"Build type for Swift [Debug, RelWithDebInfo, Release, MinSizeRel]"
FORCE)
message(STATUS "No build type was specified, will default to ${CMAKE_BUILD_TYPE}")
endif()
set(SWIFT_ANALYZE_CODE_COVERAGE FALSE CACHE STRING
"Build Swift with code coverage instrumenting enabled [FALSE, NOT-MERGED, MERGED]")
include(${CMAKE_CURRENT_LIST_DIR}/cmake/SwiftVersion.cmake)
set(SWIFT_VENDOR "" CACHE STRING
"The vendor name of the Swift compiler")
set(SWIFT_COMPILER_VERSION "" CACHE STRING
"The internal version of the Swift compiler")
set(CLANG_COMPILER_VERSION "" CACHE STRING
"The internal version of the Clang compiler")
option(SWIFT_DISABLE_DEAD_STRIPPING
"Turn off Darwin-specific dead stripping for Swift host tools." FALSE)
set(SWIFT_TOOLS_ENABLE_LTO OFF CACHE STRING "Build Swift tools with LTO. One
must specify the form of LTO by setting this to one of: 'full', 'thin'. This
option only affects the tools that run on the host (the compiler), and has
no effect on the target libraries (the standard library and the runtime).")
option(SWIFT_TOOLS_LD64_LTO_CODEGEN_ONLY_FOR_SUPPORTING_TARGETS
"When building ThinLTO using ld64 on Darwin, controls whether to opt out of
LLVM IR optimizations when linking targets that will get
little benefit from it (e.g. tools for bootstrapping or
debugging Swift)"
FALSE)
option(BOOTSTRAPPING_MODE [=[
How to build the swift compiler modules. Possible values are
OFF: build without swift modules
HOSTTOOLS: build with a pre-installed toolchain
BOOTSTRAPPING: build with a 2-stage bootstrapping process
BOOTSTRAPPING-WITH-HOSTLIBS: build with a 2-stage bootstrapping process,
but the compiler links against the host system swift libs (macOS only)
CROSSCOMPILE: cross-compiledwith a native host compiler, provided in
`SWIFT_NATIVE_SWIFT_TOOLS_PATH` (non-Darwin only)
CROSSCOMPILE-WITH-HOSTLIBS: build with a bootstrapping-with-hostlibs compiled
compiler, provided in `SWIFT_NATIVE_SWIFT_TOOLS_PATH`
]=] OFF)
option(BRIDGING_MODE [=[
How swift-C++ bridging code is compiled:
INLINE: uses full swift C++ interop and briding functions are inlined
PURE: uses limited C++ interp an bridging functions are not inlined
DEFAULT: based on the build configuration
]=] DEFAULT)
option(SWIFT_USE_SYMLINKS "Use symlinks instead of copying binaries" ${CMAKE_HOST_UNIX})
set(SWIFT_COPY_OR_SYMLINK "copy")
if(SWIFT_USE_SYMLINKS)
set(SWIFT_COPY_OR_SYMLINK "create_symlink")
endif()
# The following only works with the Ninja generator in CMake >= 3.0.
set(SWIFT_PARALLEL_LINK_JOBS "" CACHE STRING
"Define the maximum number of linker jobs for swift.")
option(SWIFT_FORCE_OPTIMIZED_TYPECHECKER "Override the optimization setting of
the type checker so that it always compiles with optimization. This eases
debugging after type checking occurs by speeding up type checking" FALSE)
# Allow building Swift with Clang's Profile Guided Optimization
if(SWIFT_PROFDATA_FILE AND EXISTS ${SWIFT_PROFDATA_FILE})
if(NOT CMAKE_C_COMPILER_ID MATCHES Clang)
message(FATAL_ERROR "SWIFT_PROFDATA_FILE can only be specified when compiling with clang")
endif()
add_definitions("-fprofile-instr-use=${SWIFT_PROFDATA_FILE}")
endif()
set(SWIFT_TOOLS_INSTALL_DIR "${CMAKE_INSTALL_BINDIR}" CACHE PATH
"Path for binary subdirectory to use during installation.
Used by add_swift_tool_symlink in AddSwift.cmake so that llvm_install_symlink generates the installation script properly.")
#
# User-configurable Swift Standard Library specific options.
#
# TODO: Once the stdlib/compiler builds are split, this should be sunk into the
# stdlib cmake.
#
set(SWIFT_STDLIB_BUILD_TYPE "${CMAKE_BUILD_TYPE}" CACHE STRING
"Build type for the Swift standard library and SDK overlays [Debug, RelWithDebInfo, Release, MinSizeRel]")
# Allow the user to specify the standard library CMAKE_MSVC_RUNTIME_LIBRARY
# value. The following values are valid:
# - MultiThreaded (/MT)
# - MultiThreadedDebug (/MTd)
# - MultiThreadedDLL (/MD)
# - MultiThreadedDebugDLL (/MDd)
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
set(SWIFT_STDLIB_MSVC_RUNTIME_LIBRARY_default MultiThreadedDebugDLL)
else()
set(SWIFT_STDLIB_MSVC_RUNTIME_LIBRARY_default MultiThreadedDLL)
endif()
set(SWIFT_STDLIB_MSVC_RUNTIME_LIBRARY
${SWIFT_STDLIB_MSVC_RUNTIME_LIBRARY_default}
CACHE STRING "MSVC Runtime Library for the standard library")
if(BRIDGING_MODE STREQUAL "DEFAULT" OR NOT BRIDGING_MODE)
if(CMAKE_BUILD_TYPE STREQUAL "Debug" OR "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows" OR (CMAKE_Swift_COMPILER AND CMAKE_Swift_COMPILER_VERSION VERSION_LESS 5.8))
# In debug builds, to workaround a problem with LLDB's `po` command (rdar://115770255).
# On windows to workaround a build problem.
# If the host Swift version is less than 5.8, use pure mode to workaround a C++ interop compiler crash.
set(BRIDGING_MODE "PURE")
else()
set(BRIDGING_MODE "INLINE")
endif()
endif()
is_build_type_optimized("${SWIFT_STDLIB_BUILD_TYPE}" swift_optimized)
if(swift_optimized)
set(SWIFT_STDLIB_ASSERTIONS_default FALSE)
else()
set(SWIFT_STDLIB_ASSERTIONS_default TRUE)
endif()
option(SWIFT_STDLIB_ASSERTIONS
"Enable internal checks for the Swift standard library (useful for debugging the library itself, does not affect checks required for safety)"
"${SWIFT_STDLIB_ASSERTIONS_default}")
option(SWIFT_BUILD_RUNTIME_WITH_HOST_COMPILER
"Use the host compiler and not the internal clang to build the swift runtime"
FALSE)
option(SWIFT_RUN_TESTS_WITH_HOST_COMPILER
"Run tests against the host compiler and not the just built swift"
FALSE)
set(SWIFT_SDKS "" CACHE STRING
"If non-empty, limits building target binaries only to specified SDKs (despite other SDKs being available)")
set(SWIFT_PRIMARY_VARIANT_SDK "" CACHE STRING
"Primary SDK for target binaries")
set(SWIFT_PRIMARY_VARIANT_ARCH "" CACHE STRING
"Primary arch for target binaries")
set(SWIFT_NATIVE_LLVM_TOOLS_PATH "" CACHE STRING
"Path to the directory that contains LLVM tools that are executable on the build machine")
set(SWIFT_NATIVE_CLANG_TOOLS_PATH "" CACHE STRING
"Path to the directory that contains Clang tools that are executable on the build machine")
set(SWIFT_NATIVE_SWIFT_TOOLS_PATH "" CACHE STRING
"Path to the directory that contains Swift tools that are executable on the build machine")
option(SWIFT_STDLIB_ENABLE_SIB_TARGETS
"Should we generate sib targets for the stdlib or not?"
FALSE)
set(SWIFT_DARWIN_SUPPORTED_ARCHS "" CACHE STRING
"Semicolon-separated list of architectures to configure on Darwin platforms. \
If left empty all default architectures are configured.")
set(SWIFT_DARWIN_MODULE_ARCHS "" CACHE STRING
"Semicolon-separated list of architectures to configure Swift module-only \
targets on Darwin platforms. These targets are in addition to the full \
library targets.")
#
# User-configurable Android specific options.
#
set(SWIFT_ANDROID_API_LEVEL "" CACHE STRING
"Version number for the Android API")
set(SWIFT_ANDROID_NDK_PATH "" CACHE STRING
"Path to the directory that contains the Android NDK tools that are executable on the build machine")
set(SWIFT_ANDROID_DEPLOY_DEVICE_PATH "" CACHE STRING
"Path on an Android device where build products will be pushed. These are used when running the test suite against the device")
#
# User-configurable Darwin-specific options.
#
option(SWIFT_EMBED_BITCODE_SECTION
"If non-empty, embeds LLVM bitcode binary sections in the standard library and overlay binaries for supported platforms"
FALSE)
option(SWIFT_EMBED_BITCODE_SECTION_HIDE_SYMBOLS
"If non-empty, when embedding the LLVM bitcode binary sections into the relevant binaries, pass in -bitcode_hide_symbols. Does nothing if SWIFT_EMBED_BITCODE_SECTION is set to false."
FALSE)
if("${SWIFT_HOST_VARIANT_SDK}" MATCHES "(OSX|IOS*|TVOS*|WATCHOS*)")
set(SWIFT_RUNTIME_CRASH_REPORTER_CLIENT_default TRUE)
else()
set(SWIFT_RUNTIME_CRASH_REPORTER_CLIENT_default FALSE)
endif()
option(SWIFT_RUNTIME_CRASH_REPORTER_CLIENT
"Whether to enable CrashReporter integration"
"${SWIFT_RUNTIME_CRASH_REPORTER_CLIENT_default}")
set(SWIFT_DARWIN_XCRUN_TOOLCHAIN "XcodeDefault" CACHE STRING
"The name of the toolchain to pass to 'xcrun'")
set(SWIFT_DARWIN_STDLIB_INSTALL_NAME_DIR "/usr/lib/swift" CACHE STRING
"The directory of the install_name for standard library dylibs")
# We don't want to use the same install_name_dir as the standard library which
# will be installed in /usr/lib/swift. These private libraries should continue
# to use @rpath for now.
set(SWIFT_DARWIN_STDLIB_PRIVATE_INSTALL_NAME_DIR "@rpath" CACHE STRING
"The directory of the install_name for the private standard library dylibs")
set(SWIFT_DARWIN_DEPLOYMENT_VERSION_OSX "10.13" CACHE STRING
"Minimum deployment target version for OS X")
set(SWIFT_DARWIN_DEPLOYMENT_VERSION_IOS "11.0" CACHE STRING
"Minimum deployment target version for iOS")
set(SWIFT_DARWIN_DEPLOYMENT_VERSION_TVOS "11.0" CACHE STRING
"Minimum deployment target version for tvOS")
set(SWIFT_DARWIN_DEPLOYMENT_VERSION_WATCHOS "4.0" CACHE STRING
"Minimum deployment target version for watchOS")
#
# Compatibility library deployment versions
#
set(COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_OSX "10.9")
set(COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_IOS "7.0")
set(COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_TVOS "9.0")
set(COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_WATCHOS "2.0")
set(COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_MACCATALYST "13.1")
#
# User-configurable debugging options.
#
option(SWIFT_SIL_VERIFY_ALL
"Run SIL verification after each transform when building Swift files in the build process"
FALSE)
option(SWIFT_SIL_VERIFY_ALL_MACOS_ONLY
"Run SIL verification after each transform when building the macOS stdlib"
FALSE)
option(SWIFT_EMIT_SORTED_SIL_OUTPUT
"Sort SIL output by name to enable diffing of output"
FALSE)
if(SWIFT_STDLIB_ASSERTIONS)
set(SWIFT_RUNTIME_CLOBBER_FREED_OBJECTS_default TRUE)
else()
set(SWIFT_RUNTIME_CLOBBER_FREED_OBJECTS_default FALSE)
endif()
option(SWIFT_RUNTIME_CLOBBER_FREED_OBJECTS
"Overwrite memory for deallocated Swift objects"
"${SWIFT_RUNTIME_CLOBBER_FREED_OBJECTS_default}")
option(SWIFT_STDLIB_SIL_DEBUGGING
"Compile the Swift standard library with -sil-based-debuginfo to enable debugging and profiling on SIL level"
FALSE)
option(SWIFT_CHECK_INCREMENTAL_COMPILATION
"Check if incremental compilation works when compiling the Swift libraries"
FALSE)
option(SWIFT_ENABLE_ARRAY_COW_CHECKS
"Compile the stdlib with Array COW checks enabled (only relevant for assert builds)"
FALSE)
option(SWIFT_REPORT_STATISTICS
"Create json files which contain internal compilation statistics"
FALSE)
# Only Darwin platforms enable ObjC interop by default.
if("${SWIFT_HOST_VARIANT_SDK}" MATCHES "(OSX|IOS*|TVOS*|WATCHOS*)")
set(SWIFT_STDLIB_ENABLE_OBJC_INTEROP_default TRUE)
else()
set(SWIFT_STDLIB_ENABLE_OBJC_INTEROP_default FALSE)
endif()
# Used by stdlib/toolchain as well, so this cannot be in stdlib/CMakeLists.txt
option(SWIFT_STDLIB_ENABLE_OBJC_INTEROP
"Should stdlib be built with Obj-C interop."
"${SWIFT_STDLIB_ENABLE_OBJC_INTEROP_default}")
#
# User-configurable experimental options. Do not use in production builds.
#
set(SWIFT_EXPERIMENTAL_EXTRA_FLAGS "" CACHE STRING
"Extra flags to pass when compiling swift files. Use this option *only* for one-off experiments")
set(SWIFT_EXPERIMENTAL_EXTRA_REGEXP_FLAGS "" CACHE STRING
"A list of [module_regexp1;flags1;module_regexp2;flags2,...] which can be used to apply specific flags to modules that match a cmake regexp. It always applies the first regexp that matches.")
set(SWIFT_EXPERIMENTAL_EXTRA_NEGATIVE_REGEXP_FLAGS "" CACHE STRING
"A list of [module_regexp1;flags1;module_regexp2;flags2,...] which can be used to apply specific flags to modules that do not match a cmake regexp. It always applies the first regexp that does not match. The reason this is necessary is that cmake does not provide negative matches in the regex. Instead you have to use NOT in the if statement requiring a separate variable.")
option(SWIFT_RUNTIME_ENABLE_LEAK_CHECKER
"Should the runtime be built with support for non-thread-safe leak detecting entrypoints"
FALSE)
option(SWIFT_ENABLE_RUNTIME_FUNCTION_COUNTERS
"Enable runtime function counters and expose the API."
FALSE)
option(SWIFT_ENABLE_STDLIBCORE_EXCLUSIVITY_CHECKING
"Build stdlibCore with exclusivity checking enabled"
FALSE)
option(SWIFT_STDLIB_ENABLE_DEBUG_PRECONDITIONS_IN_RELEASE
"Enable _debugPrecondition checks in the stdlib in Release configurations"
FALSE)
option(SWIFT_ENABLE_EXPERIMENTAL_DIFFERENTIABLE_PROGRAMMING
"Enable experimental Swift differentiable programming features"
FALSE)
option(SWIFT_IMPLICIT_CONCURRENCY_IMPORT
"Implicitly import the Swift concurrency module"
TRUE)
option(SWIFT_IMPLICIT_BACKTRACING_IMPORT
"Implicitly import the Swift backtracing module"
FALSE)
option(SWIFT_ENABLE_EXPERIMENTAL_CONCURRENCY
"Enable build of the Swift concurrency module"
FALSE)
option(SWIFT_ENABLE_EXPERIMENTAL_CXX_INTEROP
"Enable experimental C++ interop modules"
FALSE)
option(SWIFT_ENABLE_CXX_INTEROP_SWIFT_BRIDGING_HEADER
"Install the <swift/bridging> C++ interoperability header alongside compiler"
TRUE)
option(SWIFT_ENABLE_EXPERIMENTAL_DISTRIBUTED
"Enable experimental distributed actors and functions"
FALSE)
option(SWIFT_ENABLE_EXPERIMENTAL_STRING_PROCESSING
"Enable experimental string processing"
FALSE)
option(SWIFT_ENABLE_EXPERIMENTAL_OBSERVATION
"Enable build of the Swift observation module"
FALSE)
option(SWIFT_ENABLE_DISPATCH
"Enable use of libdispatch"
TRUE)
option(SWIFT_ENABLE_GLOBAL_ISEL_ARM64
"Enable global isel on arm64"
FALSE)
cmake_dependent_option(SWIFT_BUILD_SOURCEKIT
"Build SourceKit" TRUE
"SWIFT_ENABLE_DISPATCH" FALSE)
cmake_dependent_option(SWIFT_ENABLE_SOURCEKIT_TESTS
"Enable running SourceKit tests" TRUE
"SWIFT_BUILD_SOURCEKIT" FALSE)
option(SWIFT_THREADING_PACKAGE
"Override the threading package used for the build. This can either be a
single package name, or a semicolon separated sequence of sdk:package pairs.
Valid package names are 'pthreads', 'darwin', 'linux', 'win32', 'c11', 'none'
or the empty string for the SDK default.")
option(SWIFT_THREADING_HAS_DLSYM
"Enable the use of the dlsym() function. This gets used to provide TSan
support on some platforms."
TRUE)
option(SWIFT_ENABLE_MACCATALYST
"Build the Standard Library and overlays with MacCatalyst support"
FALSE)
option(SWIFT_ENABLE_BACKTRACING
"Build backtracing runtime support"
FALSE)
set(SWIFT_DARWIN_DEPLOYMENT_VERSION_MACCATALYST "14.5" CACHE STRING
"Minimum deployment target version for macCatalyst")
#
# End of user-configurable options.
#
set(SWIFT_BUILT_STANDALONE FALSE)
if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_SOURCE_DIR}")
set(SWIFT_BUILT_STANDALONE TRUE)
endif()
if(SWIFT_BUILT_STANDALONE)
project(Swift C CXX ${SWIFT_ASM_DIALECT})
endif()
if(MSVC OR "${CMAKE_SIMULATE_ID}" STREQUAL "MSVC")
include(ClangClCompileRules)
elseif(UNIX)
include(UnixCompileRules)
endif()
if(CMAKE_C_COMPILER_ID MATCHES Clang)
add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Werror=gnu>)
endif()
# Make some warnings errors as they are commonly occurring and flood the build
# with unnecessary noise.
if(CMAKE_C_COMPILER_ID MATCHES Clang)
add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-Werror=c++98-compat-extra-semi>)
endif()
option(SWIFT_BUILD_SWIFT_SYNTAX
"Enable building swift syntax"
FALSE)
option(SWIFT_BUILD_REGEX_PARSER_IN_COMPILER
"Build the Swift regex parser as part of the compiler."
TRUE)
if(SWIFT_BUILD_REGEX_PARSER_IN_COMPILER AND NOT SWIFT_BUILD_SWIFT_SYNTAX)
message(WARNING "Force setting SWIFT_BUILD_REGEX_PARSER_IN_COMPILER=OFF because Swift parser integration is disabled")
set(SWIFT_BUILD_REGEX_PARSER_IN_COMPILER OFF)
endif()
set(SWIFT_BUILD_HOST_DISPATCH FALSE)
if(SWIFT_ENABLE_DISPATCH AND NOT CMAKE_SYSTEM_NAME STREQUAL "Darwin")
# Only build libdispatch for the host if the host tools are being built and
# specifically if these two libraries that depend on it are built.
if(SWIFT_INCLUDE_TOOLS AND SWIFT_BUILD_SOURCEKIT)
set(SWIFT_BUILD_HOST_DISPATCH TRUE)
endif()
if(SWIFT_BUILD_HOST_DISPATCH)
if(NOT EXISTS "${SWIFT_PATH_TO_LIBDISPATCH_SOURCE}")
message(SEND_ERROR "SourceKit requires libdispatch on non-Darwin hosts. Please specify SWIFT_PATH_TO_LIBDISPATCH_SOURCE")
endif()
endif()
endif()
file(STRINGS "utils/availability-macros.def" SWIFT_STDLIB_AVAILABILITY_DEFINITIONS)
list(FILTER SWIFT_STDLIB_AVAILABILITY_DEFINITIONS EXCLUDE REGEX "^\\s*(#.*)?$")
#
# Include CMake modules
#
include(CheckCXXSourceRuns)
include(CMakeParseArguments)
include(CMakePushCheckState)
# Print out path and version of any installed commands
message(STATUS "CMake (${CMAKE_COMMAND}) Version: ${CMAKE_VERSION}")
if(XCODE)
set(version_flag -version)
else()
set(version_flag --version)
endif()
execute_process(COMMAND ${CMAKE_MAKE_PROGRAM} ${version_flag}
OUTPUT_VARIABLE _CMAKE_MAKE_PROGRAM_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE)
message(STATUS "CMake Make Program (${CMAKE_MAKE_PROGRAM}) Version: ${_CMAKE_MAKE_PROGRAM_VERSION}")
message(STATUS "C Compiler (${CMAKE_C_COMPILER}) Version: ${CMAKE_C_COMPILER_VERSION}")
message(STATUS "C++ Compiler (${CMAKE_CXX_COMPILER}) Version: ${CMAKE_CXX_COMPILER_VERSION}")
message(STATUS "Assembler (${CMAKE_${SWIFT_ASM_DIALECT}_COMPILER}) Version: ${CMAKE_${SWIFT_ASM_DIALECT}_COMPILER_VERSION}")
if (CMAKE_Swift_COMPILER)
message(STATUS "Swift Compiler (${CMAKE_Swift_COMPILER}) Version: ${CMAKE_Swift_COMPILER_VERSION}")
# Check if the current Swift compiler has implicit _StringProcessing module.
swift_supports_implicit_module("string-processing"
SWIFT_SUPPORTS_DISABLE_IMPLICIT_STRING_PROCESSING_MODULE_IMPORT)
message(STATUS " Implicit 'string-processing' import: ${SWIFT_SUPPORTS_DISABLE_IMPLICIT_STRING_PROCESSING_MODULE_IMPORT}")
# Same for _Backtracing.
swift_supports_implicit_module("backtracing"
SWIFT_SUPPORTS_DISABLE_IMPLICIT_BACKTRACING_MODULE_IMPORT)
message(STATUS " Implicit 'backtracing' import: ${SWIFT_SUPPORTS_DISABLE_IMPLICIT_BACKTRACING_MODULE_IMPORT}")
else()
message(STATUS "Swift Compiler (None).")
endif()
if(SWIFT_PATH_TO_CMARK_BUILD)
execute_process(COMMAND ${SWIFT_PATH_TO_CMARK_BUILD}/src/cmark --version
OUTPUT_VARIABLE _CMARK_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE)
message(STATUS "CMark Version: ${_CMARK_VERSION}")
endif()
message(STATUS "")
# Check if a prebuilt clang path was passed in, as this variable will be
# assigned if not, in SwiftSharedCMakeConfig.
if("${SWIFT_NATIVE_CLANG_TOOLS_PATH}" STREQUAL "")
set(SWIFT_PREBUILT_CLANG FALSE)
else()
set(SWIFT_PREBUILT_CLANG TRUE)
endif()
# Also mark if we have a prebuilt swift before we do anything.
if("${SWIFT_NATIVE_SWIFT_TOOLS_PATH}" STREQUAL "")
set(SWIFT_PREBUILT_SWIFT FALSE)
else()
set(SWIFT_PREBUILT_SWIFT TRUE)
endif()
include(SwiftSharedCMakeConfig)
# NOTE: We include this before SwiftComponents as it relies on some LLVM CMake
# functionality.
# Support building Swift as a standalone project, using LLVM as an
# external library.
if(SWIFT_BUILT_STANDALONE)
swift_common_standalone_build_config(SWIFT)
else()
swift_common_unified_build_config(SWIFT)
endif()
include(SwiftComponents)
include(SwiftHandleGybSources)
include(SwiftSetIfArchBitness)
include(AddSwift)
include(SwiftConfigureSDK)
include(SwiftComponents)
include(SwiftList)
include(AddPureSwift)
# Configure swift include, install, build components.
swift_configure_components()
# lipo is used to create universal binaries.
include(SwiftToolchainUtils)
if(NOT SWIFT_LIPO)
find_toolchain_tool(SWIFT_LIPO "${SWIFT_DARWIN_XCRUN_TOOLCHAIN}" lipo)
endif()
get_filename_component(SWIFT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR} REALPATH)
set(SWIFT_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}")
set(SWIFT_CMAKE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
set(SWIFT_MAIN_INCLUDE_DIR "${SWIFT_SOURCE_DIR}/include")
set(SWIFT_SHIMS_INCLUDE_DIR "${SWIFT_SOURCE_DIR}/stdlib/public/SwiftShims")
set(SWIFT_INCLUDE_DIR "${CMAKE_CURRENT_BINARY_DIR}/include")
set(SWIFT_RUNTIME_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin")
set(SWIFT_LIBRARY_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib")
if("${SWIFT_NATIVE_SWIFT_TOOLS_PATH}" STREQUAL "")
# This is the normal case. We are not cross-compiling.
set(SWIFT_NATIVE_SWIFT_TOOLS_PATH "${SWIFT_RUNTIME_OUTPUT_INTDIR}")
set(SWIFT_EXEC_FOR_SWIFT_MODULES "${CMAKE_Swift_COMPILER}")
elseif(BOOTSTRAPPING_MODE MATCHES "BOOTSTRAPPING.*")
# If cross-compiling, we don't have to bootstrap. We can just use the previously
# built native swiftc to build the swift compiler modules.
message(STATUS "Building swift modules with previously built tools instead of bootstrapping")
set(SWIFT_EXEC_FOR_SWIFT_MODULES "${SWIFT_NATIVE_SWIFT_TOOLS_PATH}/swiftc")
if(BOOTSTRAPPING_MODE STREQUAL "BOOTSTRAPPING-WITH-HOSTLIBS")
set(BOOTSTRAPPING_MODE "CROSSCOMPILE-WITH-HOSTLIBS")
elseif(BOOTSTRAPPING_MODE STREQUAL "BOOTSTRAPPING")
set(BOOTSTRAPPING_MODE "CROSSCOMPILE")
else()
set(BOOTSTRAPPING_MODE "HOSTTOOLS")
endif()
elseif(BOOTSTRAPPING_MODE STREQUAL "HOSTTOOLS" OR SWIFT_BUILD_SWIFT_SYNTAX)
# We are building using a pre-installed host toolchain but not bootstrapping
# the Swift modules. This happens when building using 'build-tooling-libs'
# where we haven't built a new Swift compiler. Use the Swift compiler from the
# pre-installed host toolchain to build the Swift modules.
set(SWIFT_EXEC_FOR_SWIFT_MODULES "${CMAKE_Swift_COMPILER}")
endif()
if(SWIFT_BUILD_SWIFT_SYNTAX)
# Only "HOSTTOOLS" is supported in Linux when Swift parser integration is enabled.
if(SWIFT_HOST_VARIANT_SDK MATCHES "LINUX|ANDROID|OPENBSD|FREEBSD" AND NOT BOOTSTRAPPING_MODE STREQUAL "HOSTTOOLS")
message(WARNING "Force setting BOOTSTRAPPING=HOSTTOOLS because Swift parser integration is enabled")
set(BOOTSTRAPPING_MODE "HOSTTOOLS")
endif()
endif()
if(BOOTSTRAPPING_MODE MATCHES "HOSTTOOLS|.*-WITH-HOSTLIBS")
if(SWIFT_ENABLE_ARRAY_COW_CHECKS)
message(STATUS "array COW checks disabled when building the swift modules with host libraries")
set(SWIFT_ENABLE_ARRAY_COW_CHECKS FALSE)
endif()
endif()
# This setting causes all CMakeLists.txt to automatically have
# ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CURRENT_SOURCE_DIR} as an
# include_directories path. This is done for developer
# convenience. Additionally, LLVM/Clang build with this option enabled, so we
# should match them unless it is removed from LLVM/Clang as well.
#
# *NOTE* Even though these directories are added to the include path for a
# specific CMakeLists.txt, these include paths are not propagated down to
# subdirectories.
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# We'll need this once we have generated headers
include_directories(BEFORE
${SWIFT_MAIN_INCLUDE_DIR}
${SWIFT_INCLUDE_DIR}
${SWIFT_SHIMS_INCLUDE_DIR}
)
# Configuration flags passed to all of our invocations of gyb. Try to
# avoid making up new variable names here if you can find a CMake
# variable that will do the job.
set(SWIFT_GYB_FLAGS
"-DunicodeGraphemeBreakPropertyFile=${SWIFT_SOURCE_DIR}/utils/UnicodeData/GraphemeBreakProperty.txt"
"-DunicodeGraphemeBreakTestFile=${SWIFT_SOURCE_DIR}/utils/UnicodeData/GraphemeBreakTest.txt")
# Directory to use as the Clang module cache when building Swift source files.
set(SWIFT_MODULE_CACHE_PATH
"${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/module-cache")
# Xcode: use libc++ and c++11 using proper build settings.
if(XCODE)
swift_common_xcode_cxx_config()
endif()
# Which default linker to use. Prefer LLVM_USE_LINKER if it set, otherwise use
# our own defaults. This should only be possible in a unified (not stand alone)
# build environment.
if(LLVM_USE_LINKER)
set(SWIFT_USE_LINKER_default "${LLVM_USE_LINKER}")
elseif(SWIFT_HOST_VARIANT_SDK STREQUAL "ANDROID")
set(SWIFT_USE_LINKER_default "lld")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows" AND NOT CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
set(SWIFT_USE_LINKER_default "lld")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
set(SWIFT_USE_LINKER_default "")
else()
set(SWIFT_USE_LINKER_default "gold")
endif()
set(SWIFT_USE_LINKER ${SWIFT_USE_LINKER_default} CACHE STRING
"Build Swift with a non-default linker")
#
# Enable additional warnings.
#
swift_common_cxx_warnings()
# Check if we're build with MSVC or Clang-cl, as these compilers have similar command line arguments.
if("${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC" OR "${CMAKE_CXX_SIMULATE_ID}" STREQUAL "MSVC")
set(SWIFT_COMPILER_IS_MSVC_LIKE TRUE)
endif()
#
# Display a message if the threading package has been overridden
#
if(SWIFT_THREADING_PACKAGE)
message(STATUS "")
message(STATUS "Threading package override enabled")
foreach(elt ${SWIFT_THREADING_PACKAGE})
string(REPLACE ":" ";" elt_list "${elt}")
list(LENGTH elt_list elt_list_len)
if(elt_list_len EQUAL 1)
set(elt_sdk "Global")
list(GET elt_list 0 elt_package)
elseif(elt_list_len EQUAL 2)
list(GET elt_list 0 elt_sdk)
list(GET elt_list 1 elt_package)
string(TOUPPER "${elt_sdk}" elt_sdk)
else()
message(FATAL_ERROR "Bad threading override \"${elt}\" - SWIFT_THREADING_PACKAGE must be a semicolon separated list of package or sdk:package pairs.")
endif()
string(TOLOWER "${elt_package}" elt_package)
message(STATUS " ${elt_sdk}: ${elt_package}")
endforeach()
message(STATUS "")
endif()
#
# Configure SDKs.
#
if(XCODE)
# FIXME: It used to be the case that Xcode would force
# -m${platform}-version-min flags that would conflict with those computed
# by build-script. version-min flags are deprecated in favor of -target since
# clang-11, so we might be able to undo this.
set(SWIFT_SDKS "OSX")
endif()
# FIXME: the parameters we specify in SWIFT_SDKS are lacking architecture specifics,
# so we need to hard-code it. For example, the SDK for Android is just 'ANDROID',
# and we have to specify SWIFT_SDK_ANDROID_ARCHITECTURES separately.
# The iOS SDKs all have their architectures hardcoded because they are just specified by name (e.g. 'IOS' or 'WATCHOS').
# We can't cross-compile the standard library for another linux architecture,
# because the SDK list would just be 'LINUX' and we couldn't disambiguate it from the host.
#
# To fix it, we would need to append the architecture to the SDKs,
# for example: 'OSX-x86_64;IOS-armv7;...etc'.
# We could easily do that - we have all of that information in build-script-impl.
# Darwin targets cheat and use `xcrun`.
if("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "LINUX")
set(SWIFT_HOST_VARIANT "linux" CACHE STRING
"Deployment OS for Swift host tools (the compiler) [linux].")
# Should we build the standard library for the host?