meson.build

   1 project('qemu', ['c'], meson_version: '>=0.63.0',
   2         default_options: ['warning_level=1', 'c_std=gnu11', 'cpp_std=gnu++11', 'b_colorout=auto',
   3                           'b_staticpic=false', 'stdsplit=false', 'optimization=2', 'b_pie=true'],
   4         version: files('VERSION'))
   5
   6 add_test_setup('quick', exclude_suites: ['slow', 'thorough'], is_default: true)
   7 add_test_setup('slow', exclude_suites: ['thorough'], env: ['G_TEST_SLOW=1', 'SPEED=slow'])
   8 add_test_setup('thorough', env: ['G_TEST_SLOW=1', 'SPEED=thorough'])
   9
  10 meson.add_postconf_script(find_program('scripts/symlink-install-tree.py'))
  11
  12 not_found = dependency('', required: false)
  13 keyval = import('keyval')
  14 ss = import('sourceset')
  15 fs = import('fs')
  16
  17 targetos = host_machine.system()
  18 sh = find_program('sh')
  19 config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
  20
  21 cc = meson.get_compiler('c')
  22 all_languages = ['c']
  23 if add_languages('cpp', required: false, native: false)
  24   all_languages += ['cpp']
  25   cxx = meson.get_compiler('cpp')
  26 endif
  27 if targetos == 'darwin' and \
  28    add_languages('objc', required: get_option('cocoa'), native: false)
  29   all_languages += ['objc']
  30   objc = meson.get_compiler('objc')
  31 endif
  32
  33 # Temporary directory used for files created while
  34 # configure runs. Since it is in the build directory
  35 # we can safely blow away any previous version of it
  36 # (and we need not jump through hoops to try to delete
  37 # it when configure exits.)
  38 tmpdir = meson.current_build_dir() / 'meson-private/temp'
  39
  40 if get_option('qemu_suffix').startswith('/')
  41   error('qemu_suffix cannot start with a /')
  42 endif
  43
  44 qemu_confdir = get_option('sysconfdir') / get_option('qemu_suffix')
  45 qemu_datadir = get_option('datadir') / get_option('qemu_suffix')
  46 qemu_docdir = get_option('docdir') / get_option('qemu_suffix')
  47 qemu_moddir = get_option('libdir') / get_option('qemu_suffix')
  48
  49 qemu_desktopdir = get_option('datadir') / 'applications'
  50 qemu_icondir = get_option('datadir') / 'icons'
  51
  52 config_host_data = configuration_data()
  53 genh = []
  54 qapi_trace_events = []
  55
  56 bsd_oses = ['gnu/kfreebsd', 'freebsd', 'netbsd', 'openbsd', 'dragonfly', 'darwin']
  57 supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux']
  58 supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv', 'x86', 'x86_64',
  59   'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64']
  60
  61 cpu = host_machine.cpu_family()
  62
  63 # Unify riscv* to a single family.
  64 if cpu in ['riscv32', 'riscv64']
  65   cpu = 'riscv'
  66 endif
  67
  68 target_dirs = config_host['TARGET_DIRS'].split()
  69 have_linux_user = false
  70 have_bsd_user = false
  71 have_system = false
  72 foreach target : target_dirs
  73   have_linux_user = have_linux_user or target.endswith('linux-user')
  74   have_bsd_user = have_bsd_user or target.endswith('bsd-user')
  75   have_system = have_system or target.endswith('-softmmu')
  76 endforeach
  77 have_user = have_linux_user or have_bsd_user
  78 have_tools = get_option('tools') \
  79   .disable_auto_if(not have_system) \
  80   .allowed()
  81 have_ga = get_option('guest_agent') \
  82   .disable_auto_if(not have_system and not have_tools) \
  83   .require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
  84            error_message: 'unsupported OS for QEMU guest agent') \
  85   .allowed()
  86 enable_modules = get_option('modules') \
  87   .require(targetos != 'windows',
  88            error_message: 'Modules are not available for Windows') \
  89   .require(not get_option('prefer_static'),
  90            error_message: 'Modules are incompatible with static linking') \
  91   .allowed()
  92 have_block = have_system or have_tools
  93
  94 python = import('python').find_installation()
  95
  96 if cpu not in supported_cpus
  97   host_arch = 'unknown'
  98 elif cpu == 'x86'
  99   host_arch = 'i386'
 100 elif cpu == 'mips64'
 101   host_arch = 'mips'
 102 else
 103   host_arch = cpu
 104 endif
 105
 106 if cpu in ['x86', 'x86_64']
 107   kvm_targets = ['i386-softmmu', 'x86_64-softmmu']
 108 elif cpu == 'aarch64'
 109   kvm_targets = ['aarch64-softmmu']
 110 elif cpu == 's390x'
 111   kvm_targets = ['s390x-softmmu']
 112 elif cpu in ['ppc', 'ppc64']
 113   kvm_targets = ['ppc-softmmu', 'ppc64-softmmu']
 114 elif cpu in ['mips', 'mips64']
 115   kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu']
 116 elif cpu in ['riscv']
 117   kvm_targets = ['riscv32-softmmu', 'riscv64-softmmu']
 118 else
 119   kvm_targets = []
 120 endif
 121
 122 kvm_targets_c = '""'
 123 if get_option('kvm').allowed() and targetos == 'linux'
 124   kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
 125 endif
 126 config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
 127
 128 accelerator_targets = { 'CONFIG_KVM': kvm_targets }
 129
 130 if cpu in ['aarch64']
 131   accelerator_targets += {
 132     'CONFIG_HVF': ['aarch64-softmmu']
 133   }
 134 endif
 135
 136 if cpu in ['x86', 'x86_64', 'arm', 'aarch64']
 137   # i386 emulator provides xenpv machine type for multiple architectures
 138   accelerator_targets += {
 139     'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu', 'aarch64-softmmu'],
 140   }
 141 endif
 142 if cpu in ['x86', 'x86_64']
 143   accelerator_targets += {
 144     'CONFIG_HAX': ['i386-softmmu', 'x86_64-softmmu'],
 145     'CONFIG_HVF': ['x86_64-softmmu'],
 146     'CONFIG_NVMM': ['i386-softmmu', 'x86_64-softmmu'],
 147     'CONFIG_WHPX': ['i386-softmmu', 'x86_64-softmmu'],
 148   }
 149 endif
 150
 151 modular_tcg = []
 152 # Darwin does not support references to thread-local variables in modules
 153 if targetos != 'darwin'
 154   modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
 155 endif
 156
 157 edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
 158 unpack_edk2_blobs = false
 159 foreach target : edk2_targets
 160   if target in target_dirs
 161     bzip2 = find_program('bzip2', required: get_option('install_blobs'))
 162     unpack_edk2_blobs = bzip2.found()
 163     break
 164   endif
 165 endforeach
 166
 167 dtrace = not_found
 168 stap = not_found
 169 if 'dtrace' in get_option('trace_backends')
 170   dtrace = find_program('dtrace', required: true)
 171   stap = find_program('stap', required: false)
 172   if stap.found()
 173     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
 174     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
 175     # instead. QEMU --enable-modules depends on this because the SystemTap
 176     # semaphores are linked into the main binary and not the module's shared
 177     # object.
 178     add_global_arguments('-DSTAP_SDT_V2',
 179                          native: false, language: all_languages)
 180   endif
 181 endif
 182
 183 if get_option('iasl') == ''
 184   iasl = find_program('iasl', required: false)
 185 else
 186   iasl = find_program(get_option('iasl'), required: true)
 187 endif
 188
 189 ##################
 190 # Compiler flags #
 191 ##################
 192
 193 foreach lang : all_languages
 194   compiler = meson.get_compiler(lang)
 195   if compiler.get_id() == 'gcc' and compiler.version().version_compare('>=7.4')
 196     # ok
 197   elif compiler.get_id() == 'clang' and compiler.compiles('''
 198       #ifdef __apple_build_version__
 199       # if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
 200       #  error You need at least XCode Clang v12.0 to compile QEMU
 201       # endif
 202       #else
 203       # if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
 204       #  error You need at least Clang v10.0 to compile QEMU
 205       # endif
 206       #endif''')
 207     # ok
 208   else
 209     error('You either need GCC v7.4 or Clang v10.0 (or XCode Clang v12.0) to compile QEMU')
 210   endif
 211 endforeach
 212
 213 # default flags for all hosts
 214 # We use -fwrapv to tell the compiler that we require a C dialect where
 215 # left shift of signed integers is well defined and has the expected
 216 # 2s-complement style results. (Both clang and gcc agree that it
 217 # provides these semantics.)
 218
 219 qemu_common_flags = [
 220   '-D_GNU_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE',
 221   '-fno-strict-aliasing', '-fno-common', '-fwrapv' ]
 222 qemu_cflags = []
 223 qemu_ldflags = []
 224
 225 if targetos == 'darwin'
 226   # Disable attempts to use ObjectiveC features in os/object.h since they
 227   # won't work when we're compiling with gcc as a C compiler.
 228   qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
 229 elif targetos == 'solaris'
 230   # needed for CMSG_ macros in sys/socket.h
 231   qemu_common_flags += '-D_XOPEN_SOURCE=600'
 232   # needed for TIOCWIN* defines in termios.h
 233   qemu_common_flags += '-D__EXTENSIONS__'
 234 elif targetos == 'haiku'
 235   qemu_common_flags += ['-DB_USE_POSITIVE_POSIX_ERRORS', '-D_BSD_SOURCE', '-fPIC']
 236 endif
 237
 238 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
 239 # use i686 as default anyway, but for those that don't, an explicit
 240 # specification is necessary
 241 if host_arch == 'i386' and not cc.links('''
 242   static int sfaa(int *ptr)
 243   {
 244     return __sync_fetch_and_and(ptr, 0);
 245   }
 246
 247   int main(void)
 248   {
 249     int val = 42;
 250     val = __sync_val_compare_and_swap(&val, 0, 1);
 251     sfaa(&val);
 252     return val;
 253   }''')
 254   qemu_common_flags = ['-march=i486'] + qemu_common_flags
 255 endif
 256
 257 if get_option('gprof')
 258   qemu_common_flags += ['-p']
 259   qemu_ldflags += ['-p']
 260 endif
 261
 262 if get_option('prefer_static')
 263   qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static'
 264 endif
 265
 266 # Meson currently only handles pie as a boolean for now, so if the user
 267 # has explicitly disabled PIE we need to extend our cflags.
 268 #
 269 # -no-pie is supposedly a linker flag that has no effect on the compiler
 270 # command line, but some distros, that didn't quite know what they were
 271 # doing, made local changes to gcc's specs file that turned it into
 272 # a compiler command-line flag.
 273 #
 274 # What about linker flags?  For a static build, no PIE is implied by -static
 275 # which we added above (and if it's not because of the same specs patching,
 276 # there's nothing we can do: compilation will fail, report a bug to your
 277 # distro and do not use --disable-pie in the meanwhile).  For dynamic linking,
 278 # instead, we can't add -no-pie because it overrides -shared: the linker then
 279 # tries to build an executable instead of a shared library and fails.  So
 280 # don't add -no-pie anywhere and cross fingers. :(
 281 if not get_option('b_pie')
 282   qemu_common_flags += cc.get_supported_arguments('-fno-pie', '-no-pie')
 283 endif
 284
 285 if not get_option('stack_protector').disabled()
 286   stack_protector_probe = '''
 287     int main(int argc, char *argv[])
 288     {
 289       char arr[64], *p = arr, *c = argv[argc - 1];
 290       while (*c) {
 291           *p++ = *c++;
 292       }
 293       return 0;
 294     }'''
 295   have_stack_protector = false
 296   foreach arg : ['-fstack-protector-strong', '-fstack-protector-all']
 297     # We need to check both a compile and a link, since some compiler
 298     # setups fail only on a .c->.o compile and some only at link time
 299     if cc.compiles(stack_protector_probe, args: ['-Werror', arg]) and \
 300        cc.links(stack_protector_probe, args: ['-Werror', arg])
 301       have_stack_protector = true
 302       qemu_cflags += arg
 303       qemu_ldflags += arg
 304       break
 305     endif
 306   endforeach
 307   get_option('stack_protector') \
 308     .require(have_stack_protector, error_message: 'Stack protector not supported')
 309 endif
 310
 311 coroutine_backend = get_option('coroutine_backend')
 312 ucontext_probe = '''
 313   #include <ucontext.h>
 314   #ifdef __stub_makecontext
 315   #error Ignoring glibc stub makecontext which will always fail
 316   #endif
 317   int main(void) { makecontext(0, 0, 0); return 0; }'''
 318
 319 # On Windows the only valid backend is the Windows specific one.
 320 # For POSIX prefer ucontext, but it's not always possible. The fallback
 321 # is sigcontext.
 322 supported_backends = []
 323 if targetos == 'windows'
 324   supported_backends += ['windows']
 325 else
 326   if targetos != 'darwin' and cc.links(ucontext_probe)
 327     supported_backends += ['ucontext']
 328   endif
 329   supported_backends += ['sigaltstack']
 330 endif
 331
 332 if coroutine_backend == 'auto'
 333   coroutine_backend = supported_backends[0]
 334 elif coroutine_backend not in supported_backends
 335   error('"@0@" backend requested but not available.  Available backends: @1@' \
 336         .format(coroutine_backend, ', '.join(supported_backends)))
 337 endif
 338
 339 # Compiles if SafeStack *not* enabled
 340 safe_stack_probe = '''
 341   int main(void)
 342   {
 343   #if defined(__has_feature)
 344   #if __has_feature(safe_stack)
 345   #error SafeStack Enabled
 346   #endif
 347   #endif
 348       return 0;
 349   }'''
 350 if get_option('safe_stack') != not cc.compiles(safe_stack_probe)
 351   safe_stack_arg = get_option('safe_stack') ? '-fsanitize=safe-stack' : '-fno-sanitize=safe-stack'
 352   if get_option('safe_stack') != not cc.compiles(safe_stack_probe, args: safe_stack_arg)
 353     error(get_option('safe_stack') \
 354           ? 'SafeStack not supported by your compiler' \
 355           : 'Cannot disable SafeStack')
 356   endif
 357   qemu_cflags += safe_stack_arg
 358   qemu_ldflags += safe_stack_arg
 359 endif
 360 if get_option('safe_stack') and coroutine_backend != 'ucontext'
 361   error('SafeStack is only supported with the ucontext coroutine backend')
 362 endif
 363
 364 if get_option('sanitizers')
 365   if cc.has_argument('-fsanitize=address')
 366     qemu_cflags = ['-fsanitize=address'] + qemu_cflags
 367     qemu_ldflags = ['-fsanitize=address'] + qemu_ldflags
 368   endif
 369
 370   # Detect static linking issue with ubsan - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
 371   if cc.links('int main(int argc, char **argv) { return argc + 1; }',
 372               args: [qemu_ldflags, '-fsanitize=undefined'])
 373     qemu_cflags = ['-fsanitize=undefined'] + qemu_cflags
 374     qemu_ldflags = ['-fsanitize=undefined'] + qemu_ldflags
 375   endif
 376 endif
 377
 378 # Thread sanitizer is, for now, much noisier than the other sanitizers;
 379 # keep it separate until that is not the case.
 380 if get_option('tsan')
 381   if get_option('sanitizers')
 382     error('TSAN is not supported with other sanitizers')
 383   endif
 384   if not cc.has_function('__tsan_create_fiber',
 385                          args: '-fsanitize=thread',
 386                          prefix: '#include <sanitizer/tsan_interface.h>')
 387     error('Cannot enable TSAN due to missing fiber annotation interface')
 388   endif
 389   qemu_cflags = ['-fsanitize=thread'] + qemu_cflags
 390   qemu_ldflags = ['-fsanitize=thread'] + qemu_ldflags
 391 endif
 392
 393 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
 394 # The combination is known as "full relro", because .got.plt is read-only too.
 395 qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
 396
 397 if targetos == 'windows'
 398   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
 399   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
 400 endif
 401
 402 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
 403 if targetos != 'sunos' and not get_option('tsan')
 404   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--warn-common')
 405 endif
 406
 407 if get_option('fuzzing')
 408   # Specify a filter to only instrument code that is directly related to
 409   # virtual-devices.
 410   configure_file(output: 'instrumentation-filter',
 411                  input: 'scripts/oss-fuzz/instrumentation-filter-template',
 412                  copy: true)
 413
 414   if cc.compiles('int main () { return 0; }',
 415                   name: '-fsanitize-coverage-allowlist=/dev/null',
 416                  args: ['-fsanitize-coverage-allowlist=/dev/null',
 417                         '-fsanitize-coverage=trace-pc'] )
 418     qemu_common_flags += ['-fsanitize-coverage-allowlist=instrumentation-filter']
 419   endif
 420
 421   if get_option('fuzzing_engine') == ''
 422     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
 423     # compiled code.  To build non-fuzzer binaries with --enable-fuzzing, link
 424     # everything with fsanitize=fuzzer-no-link. Otherwise, the linker will be
 425     # unable to bind the fuzzer-related callbacks added by instrumentation.
 426     qemu_common_flags += ['-fsanitize=fuzzer-no-link']
 427     qemu_ldflags += ['-fsanitize=fuzzer-no-link']
 428     # For the actual fuzzer binaries, we need to link against the libfuzzer
 429     # library. They need to be configurable, to support OSS-Fuzz
 430     fuzz_exe_ldflags = ['-fsanitize=fuzzer']
 431   else
 432     # LIB_FUZZING_ENGINE was set; assume we are running on OSS-Fuzz, and
 433     # the needed CFLAGS have already been provided
 434     fuzz_exe_ldflags = get_option('fuzzing_engine').split()
 435   endif
 436 endif
 437
 438 add_global_arguments(qemu_common_flags, native: false, language: all_languages)
 439 add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
 440
 441 # Collect warnings that we want to enable
 442
 443 warn_flags = [
 444   '-Wundef',
 445   '-Wwrite-strings',
 446   '-Wmissing-prototypes',
 447   '-Wstrict-prototypes',
 448   '-Wredundant-decls',
 449   '-Wold-style-declaration',
 450   '-Wold-style-definition',
 451   '-Wtype-limits',
 452   '-Wformat-security',
 453   '-Wformat-y2k',
 454   '-Winit-self',
 455   '-Wignored-qualifiers',
 456   '-Wempty-body',
 457   '-Wnested-externs',
 458   '-Wendif-labels',
 459   '-Wexpansion-to-defined',
 460   '-Wimplicit-fallthrough=2',
 461   '-Wmissing-format-attribute',
 462   '-Wno-initializer-overrides',
 463   '-Wno-missing-include-dirs',
 464   '-Wno-shift-negative-value',
 465   '-Wno-string-plus-int',
 466   '-Wno-typedef-redefinition',
 467   '-Wno-tautological-type-limit-compare',
 468   '-Wno-psabi',
 469   '-Wno-gnu-variable-sized-type-not-at-end',
 470 ]
 471
 472 if targetos != 'darwin'
 473   warn_flags += ['-Wthread-safety']
 474 endif
 475
 476 # Check that the C++ compiler exists and works with the C compiler.
 477 link_language = 'c'
 478 linker = cc
 479 qemu_cxxflags = []
 480 if 'cpp' in all_languages
 481   qemu_cxxflags = ['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'] + qemu_cflags
 482   if cxx.links(files('scripts/main.c'), args: qemu_cflags)
 483     link_language = 'cpp'
 484     linker = cxx
 485   else
 486     message('C++ compiler does not work with C compiler')
 487     message('Disabling C++-specific optional code')
 488   endif
 489 endif
 490
 491 # clang does not support glibc + FORTIFY_SOURCE (is it still true?)
 492 if get_option('optimization') != '0' and targetos == 'linux'
 493   if cc.get_id() == 'gcc'
 494     qemu_cflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 495   endif
 496   if 'cpp' in all_languages and cxx.get_id() == 'gcc'
 497     qemu_cxxflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 498   endif
 499 endif
 500
 501 add_project_arguments(qemu_cflags, native: false, language: 'c')
 502 add_project_arguments(cc.get_supported_arguments(warn_flags), native: false, language: 'c')
 503 if 'cpp' in all_languages
 504   add_project_arguments(qemu_cxxflags, native: false, language: 'cpp')
 505   add_project_arguments(cxx.get_supported_arguments(warn_flags), native: false, language: 'cpp')
 506 endif
 507 if 'objc' in all_languages
 508   # Note sanitizer flags are not applied to Objective-C sources!
 509   add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
 510 endif
 511 if targetos == 'linux'
 512   add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
 513                         '-isystem', 'linux-headers',
 514                         language: all_languages)
 515 endif
 516
 517 add_project_arguments('-iquote', '.',
 518                       '-iquote', meson.current_source_dir(),
 519                       '-iquote', meson.current_source_dir() / 'include',
 520                       language: all_languages)
 521
 522 # If a host-specific include directory exists, list that first...
 523 host_include = meson.current_source_dir() / 'host/include/'
 524 if fs.is_dir(host_include / host_arch)
 525   add_project_arguments('-iquote', host_include / host_arch,
 526                         language: all_languages)
 527 endif
 528 # ... followed by the generic fallback.
 529 add_project_arguments('-iquote', host_include / 'generic',
 530                       language: all_languages)
 531
 532 sparse = find_program('cgcc', required: get_option('sparse'))
 533 if sparse.found()
 534   run_target('sparse',
 535              command: [find_program('scripts/check_sparse.py'),
 536                        'compile_commands.json', sparse.full_path(), '-Wbitwise',
 537                        '-Wno-transparent-union', '-Wno-old-initializer',
 538                        '-Wno-non-pointer-null'])
 539 endif
 540
 541 ###########################################
 542 # Target-specific checks and dependencies #
 543 ###########################################
 544
 545 # Fuzzing
 546 if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
 547     not cc.links('''
 548           #include <stdint.h>
 549           #include <sys/types.h>
 550           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 551           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 552         ''',
 553         args: ['-Werror', '-fsanitize=fuzzer'])
 554   error('Your compiler does not support -fsanitize=fuzzer')
 555 endif
 556
 557 # Tracing backends
 558 if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
 559   error('ftrace is supported only on Linux')
 560 endif
 561 if 'syslog' in get_option('trace_backends') and not cc.compiles('''
 562     #include <syslog.h>
 563     int main(void) {
 564         openlog("qemu", LOG_PID, LOG_DAEMON);
 565         syslog(LOG_INFO, "configure");
 566         return 0;
 567     }''')
 568   error('syslog is not supported on this system')
 569 endif
 570
 571 # Miscellaneous Linux-only features
 572 get_option('mpath') \
 573   .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
 574
 575 multiprocess_allowed = get_option('multiprocess') \
 576   .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
 577   .allowed()
 578
 579 vfio_user_server_allowed = get_option('vfio_user_server') \
 580   .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
 581   .allowed()
 582
 583 have_tpm = get_option('tpm') \
 584   .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
 585   .allowed()
 586
 587 # vhost
 588 have_vhost_user = get_option('vhost_user') \
 589   .disable_auto_if(targetos != 'linux') \
 590   .require(targetos != 'windows',
 591            error_message: 'vhost-user is not available on Windows').allowed()
 592 have_vhost_vdpa = get_option('vhost_vdpa') \
 593   .require(targetos == 'linux',
 594            error_message: 'vhost-vdpa is only available on Linux').allowed()
 595 have_vhost_kernel = get_option('vhost_kernel') \
 596   .require(targetos == 'linux',
 597            error_message: 'vhost-kernel is only available on Linux').allowed()
 598 have_vhost_user_crypto = get_option('vhost_crypto') \
 599   .require(have_vhost_user,
 600            error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
 601
 602 have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
 603
 604 have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
 605 have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
 606 have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
 607 have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
 608
 609 # Target-specific libraries and flags
 610 libm = cc.find_library('m', required: false)
 611 threads = dependency('threads')
 612 util = cc.find_library('util', required: false)
 613 winmm = []
 614 socket = []
 615 version_res = []
 616 coref = []
 617 iokit = []
 618 emulator_link_args = []
 619 nvmm =not_found
 620 hvf = not_found
 621 midl = not_found
 622 widl = not_found
 623 pathcch = not_found
 624 host_dsosuf = '.so'
 625 if targetos == 'windows'
 626   midl = find_program('midl', required: false)
 627   widl = find_program('widl', required: false)
 628   pathcch = cc.find_library('pathcch')
 629   socket = cc.find_library('ws2_32')
 630   winmm = cc.find_library('winmm')
 631
 632   win = import('windows')
 633   version_res = win.compile_resources('version.rc',
 634                                       depend_files: files('pc-bios/qemu-nsis.ico'),
 635                                       include_directories: include_directories('.'))
 636   host_dsosuf = '.dll'
 637 elif targetos == 'darwin'
 638   coref = dependency('appleframeworks', modules: 'CoreFoundation')
 639   iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
 640   host_dsosuf = '.dylib'
 641 elif targetos == 'sunos'
 642   socket = [cc.find_library('socket'),
 643             cc.find_library('nsl'),
 644             cc.find_library('resolv')]
 645 elif targetos == 'haiku'
 646   socket = [cc.find_library('posix_error_mapper'),
 647             cc.find_library('network'),
 648             cc.find_library('bsd')]
 649 elif targetos == 'openbsd'
 650   if get_option('tcg').allowed() and target_dirs.length() > 0
 651     # Disable OpenBSD W^X if available
 652     emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
 653   endif
 654 endif
 655
 656 # Target-specific configuration of accelerators
 657 accelerators = []
 658 if get_option('kvm').allowed() and targetos == 'linux'
 659   accelerators += 'CONFIG_KVM'
 660 endif
 661 if get_option('whpx').allowed() and targetos == 'windows'
 662   if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
 663     error('WHPX requires 64-bit host')
 664   elif cc.has_header('winhvplatform.h', required: get_option('whpx')) and \
 665        cc.has_header('winhvemulation.h', required: get_option('whpx'))
 666     accelerators += 'CONFIG_WHPX'
 667   endif
 668 endif
 669 if get_option('hvf').allowed()
 670   hvf = dependency('appleframeworks', modules: 'Hypervisor',
 671                    required: get_option('hvf'))
 672   if hvf.found()
 673     accelerators += 'CONFIG_HVF'
 674   endif
 675 endif
 676 if get_option('hax').allowed()
 677   if get_option('hax').enabled() or targetos in ['windows', 'darwin', 'netbsd']
 678     accelerators += 'CONFIG_HAX'
 679   endif
 680 endif
 681 if targetos == 'netbsd'
 682   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
 683   if nvmm.found()
 684     accelerators += 'CONFIG_NVMM'
 685   endif
 686 endif
 687
 688 tcg_arch = host_arch
 689 if get_option('tcg').allowed()
 690   if host_arch == 'unknown'
 691     if get_option('tcg_interpreter')
 692       warning('Unsupported CPU @0@, will use TCG with TCI (slow)'.format(cpu))
 693     else
 694       error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
 695     endif
 696   elif get_option('tcg_interpreter')
 697     warning('Use of the TCG interpreter is not recommended on this host')
 698     warning('architecture. There is a native TCG execution backend available')
 699     warning('which provides substantially better performance and reliability.')
 700     warning('It is strongly recommended to remove the --enable-tcg-interpreter')
 701     warning('configuration option on this architecture to use the native')
 702     warning('backend.')
 703   endif
 704   if get_option('tcg_interpreter')
 705     tcg_arch = 'tci'
 706     config_host += { 'CONFIG_TCG_INTERPRETER': 'y' }
 707   elif host_arch == 'x86_64'
 708     tcg_arch = 'i386'
 709   elif host_arch == 'ppc64'
 710     tcg_arch = 'ppc'
 711   endif
 712   add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
 713                         language: all_languages)
 714
 715   accelerators += 'CONFIG_TCG'
 716   config_host += { 'CONFIG_TCG': 'y' }
 717 endif
 718
 719 if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
 720   error('KVM not available on this platform')
 721 endif
 722 if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
 723   error('HVF not available on this platform')
 724 endif
 725 if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
 726   error('NVMM not available on this platform')
 727 endif
 728 if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
 729   error('WHPX not available on this platform')
 730 endif
 731
 732 ################
 733 # Dependencies #
 734 ################
 735
 736 # When bumping glib minimum version, please check also whether to increase
 737 # the _WIN32_WINNT setting in osdep.h according to the value from glib
 738 glib_req_ver = '>=2.56.0'
 739 glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
 740                     method: 'pkg-config')
 741 glib_cflags = []
 742 if enable_modules
 743   gmodule = dependency('gmodule-export-2.0', version: glib_req_ver, required: true,
 744                        method: 'pkg-config')
 745 elif config_host.has_key('CONFIG_PLUGIN')
 746   gmodule = dependency('gmodule-no-export-2.0', version: glib_req_ver, required: true,
 747                        method: 'pkg-config')
 748 else
 749   gmodule = not_found
 750 endif
 751
 752 # This workaround is required due to a bug in pkg-config file for glib as it
 753 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
 754 if targetos == 'windows' and get_option('prefer_static')
 755   glib_cflags += ['-DGLIB_STATIC_COMPILATION']
 756 endif
 757
 758 # Sanity check that the current size_t matches the
 759 # size that glib thinks it should be. This catches
 760 # problems on multi-arch where people try to build
 761 # 32-bit QEMU while pointing at 64-bit glib headers
 762
 763 if not cc.compiles('''
 764   #include <glib.h>
 765   #include <unistd.h>
 766
 767   #define QEMU_BUILD_BUG_ON(x) \
 768   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
 769
 770   int main(void) {
 771      QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
 772      return 0;
 773   }''', dependencies: glib_pc, args: glib_cflags)
 774   error('''sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
 775         You probably need to set PKG_CONFIG_LIBDIR" to point
 776         to the right pkg-config files for your build target.''')
 777 endif
 778
 779 # Silence clang warnings triggered by glib < 2.57.2
 780 if not cc.compiles('''
 781   #include <glib.h>
 782   typedef struct Foo {
 783     int i;
 784   } Foo;
 785   static void foo_free(Foo *f)
 786   {
 787     g_free(f);
 788   }
 789   G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
 790   int main(void) { return 0; }''', dependencies: glib_pc, args: ['-Wunused-function', '-Werror'])
 791   glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
 792 endif
 793 glib = declare_dependency(dependencies: [glib_pc, gmodule],
 794                           compile_args: glib_cflags,
 795                           version: glib_pc.version())
 796
 797 # Check whether glib has gslice, which we have to avoid for correctness.
 798 # TODO: remove this check and the corresponding workaround (qtree) when
 799 # the minimum supported glib is >= 2.75.3
 800 glib_has_gslice = glib.version().version_compare('<2.75.3')
 801
 802 # override glib dep to include the above refinements
 803 meson.override_dependency('glib-2.0', glib)
 804
 805 # The path to glib.h is added to all compilation commands.
 806 add_project_dependencies(glib.partial_dependency(compile_args: true, includes: true),
 807                          native: false, language: all_languages)
 808
 809 gio = not_found
 810 gdbus_codegen = not_found
 811 gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
 812 if not get_option('gio').auto() or have_system
 813   gio = dependency('gio-2.0', required: get_option('gio'),
 814                    method: 'pkg-config')
 815   if gio.found() and not cc.links('''
 816     #include <gio/gio.h>
 817     int main(void)
 818     {
 819       g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
 820       return 0;
 821     }''', dependencies: [glib, gio])
 822     if get_option('gio').enabled()
 823       error('The installed libgio is broken for static linking')
 824     endif
 825     gio = not_found
 826   endif
 827   if gio.found()
 828     gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
 829                                  required: get_option('gio'))
 830     gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
 831                           method: 'pkg-config')
 832     gio = declare_dependency(dependencies: [gio, gio_unix],
 833                              version: gio.version())
 834   endif
 835 endif
 836 if gdbus_codegen.found() and get_option('cfi')
 837   gdbus_codegen = not_found
 838   gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
 839 endif
 840
 841 xml_pp = find_program('scripts/xml-preprocess.py')
 842
 843 lttng = not_found
 844 if 'ust' in get_option('trace_backends')
 845   lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
 846                      method: 'pkg-config')
 847 endif
 848 pixman = not_found
 849 if have_system or have_tools
 850   pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
 851                       method: 'pkg-config')
 852 endif
 853 zlib = dependency('zlib', required: true)
 854
 855 libaio = not_found
 856 if not get_option('linux_aio').auto() or have_block
 857   libaio = cc.find_library('aio', has_headers: ['libaio.h'],
 858                            required: get_option('linux_aio'))
 859 endif
 860
 861 linux_io_uring_test = '''
 862   #include <liburing.h>
 863   #include <linux/errqueue.h>
 864
 865   int main(void) { return 0; }'''
 866
 867 linux_io_uring = not_found
 868 if not get_option('linux_io_uring').auto() or have_block
 869   linux_io_uring = dependency('liburing', version: '>=0.3',
 870                               required: get_option('linux_io_uring'),
 871                               method: 'pkg-config')
 872   if not cc.links(linux_io_uring_test)
 873     linux_io_uring = not_found
 874   endif
 875 endif
 876
 877 libnfs = not_found
 878 if not get_option('libnfs').auto() or have_block
 879   libnfs = dependency('libnfs', version: '>=1.9.3',
 880                       required: get_option('libnfs'),
 881                       method: 'pkg-config')
 882 endif
 883
 884 libattr_test = '''
 885   #include <stddef.h>
 886   #include <sys/types.h>
 887   #ifdef CONFIG_LIBATTR
 888   #include <attr/xattr.h>
 889   #else
 890   #include <sys/xattr.h>
 891   #endif
 892   int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
 893
 894 libattr = not_found
 895 have_old_libattr = false
 896 if get_option('attr').allowed()
 897   if cc.links(libattr_test)
 898     libattr = declare_dependency()
 899   else
 900     libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
 901                               required: get_option('attr'))
 902     if libattr.found() and not \
 903       cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
 904       libattr = not_found
 905       if get_option('attr').enabled()
 906         error('could not link libattr')
 907       else
 908         warning('could not link libattr, disabling')
 909       endif
 910     else
 911       have_old_libattr = libattr.found()
 912     endif
 913   endif
 914 endif
 915
 916 cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
 917                    required: get_option('cocoa'))
 918
 919 vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
 920 if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
 921                                               'VMNET_BRIDGED_MODE',
 922                                               dependencies: vmnet)
 923   vmnet = not_found
 924   if get_option('vmnet').enabled()
 925     error('vmnet.framework API is outdated')
 926   else
 927     warning('vmnet.framework API is outdated, disabling')
 928   endif
 929 endif
 930
 931 seccomp = not_found
 932 seccomp_has_sysrawrc = false
 933 if not get_option('seccomp').auto() or have_system or have_tools
 934   seccomp = dependency('libseccomp', version: '>=2.3.0',
 935                        required: get_option('seccomp'),
 936                        method: 'pkg-config')
 937   if seccomp.found()
 938     seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
 939                                                 'SCMP_FLTATR_API_SYSRAWRC',
 940                                                 dependencies: seccomp)
 941   endif
 942 endif
 943
 944 libcap_ng = not_found
 945 if not get_option('cap_ng').auto() or have_system or have_tools
 946   libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
 947                               required: get_option('cap_ng'))
 948 endif
 949 if libcap_ng.found() and not cc.links('''
 950    #include <cap-ng.h>
 951    int main(void)
 952    {
 953      capng_capability_to_name(CAPNG_EFFECTIVE);
 954      return 0;
 955    }''', dependencies: libcap_ng)
 956   libcap_ng = not_found
 957   if get_option('cap_ng').enabled()
 958     error('could not link libcap-ng')
 959   else
 960     warning('could not link libcap-ng, disabling')
 961   endif
 962 endif
 963
 964 if get_option('xkbcommon').auto() and not have_system and not have_tools
 965   xkbcommon = not_found
 966 else
 967   xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
 968                          method: 'pkg-config')
 969 endif
 970
 971 slirp = not_found
 972 if not get_option('slirp').auto() or have_system
 973   slirp = dependency('slirp', required: get_option('slirp'),
 974                      method: 'pkg-config')
 975   # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
 976   # it passes function pointers within libslirp as callbacks for timers.
 977   # When using a system-wide shared libslirp, the type information for the
 978   # callback is missing and the timer call produces a false positive with CFI.
 979   # Do not use the "version" keyword argument to produce a better error.
 980   # with control-flow integrity.
 981   if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
 982     if get_option('slirp').enabled()
 983       error('Control-Flow Integrity requires libslirp 4.7.')
 984     else
 985       warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
 986       slirp = not_found
 987     endif
 988   endif
 989 endif
 990
 991 vde = not_found
 992 if not get_option('vde').auto() or have_system or have_tools
 993   vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
 994                            required: get_option('vde'))
 995 endif
 996 if vde.found() and not cc.links('''
 997    #include <libvdeplug.h>
 998    int main(void)
 999    {
1000      struct vde_open_args a = {0, 0, 0};
1001      char s[] = "";
1002      vde_open(s, s, &a);
1003      return 0;
1004    }''', dependencies: vde)
1005   vde = not_found
1006   if get_option('cap_ng').enabled()
1007     error('could not link libvdeplug')
1008   else
1009     warning('could not link libvdeplug, disabling')
1010   endif
1011 endif
1012
1013 pulse = not_found
1014 if not get_option('pa').auto() or (targetos == 'linux' and have_system)
1015   pulse = dependency('libpulse', required: get_option('pa'),
1016                      method: 'pkg-config')
1017 endif
1018 alsa = not_found
1019 if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
1020   alsa = dependency('alsa', required: get_option('alsa'),
1021                     method: 'pkg-config')
1022 endif
1023 jack = not_found
1024 if not get_option('jack').auto() or have_system
1025   jack = dependency('jack', required: get_option('jack'),
1026                     method: 'pkg-config')
1027 endif
1028 pipewire = not_found
1029 if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
1030   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
1031                     required: get_option('pipewire'),
1032                     method: 'pkg-config')
1033 endif
1034 sndio = not_found
1035 if not get_option('sndio').auto() or have_system
1036   sndio = dependency('sndio', required: get_option('sndio'),
1037                     method: 'pkg-config')
1038 endif
1039
1040 spice_protocol = not_found
1041 if not get_option('spice_protocol').auto() or have_system
1042   spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
1043                               required: get_option('spice_protocol'),
1044                               method: 'pkg-config')
1045 endif
1046 spice = not_found
1047 if not get_option('spice').auto() or have_system
1048   spice = dependency('spice-server', version: '>=0.14.0',
1049                      required: get_option('spice'),
1050                      method: 'pkg-config')
1051 endif
1052 spice_headers = spice.partial_dependency(compile_args: true, includes: true)
1053
1054 rt = cc.find_library('rt', required: false)
1055
1056 libiscsi = not_found
1057 if not get_option('libiscsi').auto() or have_block
1058   libiscsi = dependency('libiscsi', version: '>=1.9.0',
1059                          required: get_option('libiscsi'),
1060                          method: 'pkg-config')
1061 endif
1062 zstd = not_found
1063 if not get_option('zstd').auto() or have_block
1064   zstd = dependency('libzstd', version: '>=1.4.0',
1065                     required: get_option('zstd'),
1066                     method: 'pkg-config')
1067 endif
1068 virgl = not_found
1069
1070 have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
1071 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
1072   virgl = dependency('virglrenderer',
1073                      method: 'pkg-config',
1074                      required: get_option('virglrenderer'))
1075   if virgl.found()
1076     config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
1077                          cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
1078                                        prefix: '#include <virglrenderer.h>',
1079                                        dependencies: virgl))
1080   endif
1081 endif
1082 blkio = not_found
1083 if not get_option('blkio').auto() or have_block
1084   blkio = dependency('blkio',
1085                      method: 'pkg-config',
1086                      required: get_option('blkio'))
1087 endif
1088 curl = not_found
1089 if not get_option('curl').auto() or have_block
1090   curl = dependency('libcurl', version: '>=7.29.0',
1091                     method: 'pkg-config',
1092                     required: get_option('curl'))
1093 endif
1094 libudev = not_found
1095 if targetos == 'linux' and (have_system or have_tools)
1096   libudev = dependency('libudev',
1097                        method: 'pkg-config',
1098                        required: get_option('libudev'))
1099 endif
1100
1101 mpathlibs = [libudev]
1102 mpathpersist = not_found
1103 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1104   mpath_test_source = '''
1105     #include <libudev.h>
1106     #include <mpath_persist.h>
1107     unsigned mpath_mx_alloc_len = 1024;
1108     int logsink;
1109     static struct config *multipath_conf;
1110     extern struct udev *udev;
1111     extern struct config *get_multipath_config(void);
1112     extern void put_multipath_config(struct config *conf);
1113     struct udev *udev;
1114     struct config *get_multipath_config(void) { return multipath_conf; }
1115     void put_multipath_config(struct config *conf) { }
1116     int main(void) {
1117         udev = udev_new();
1118         multipath_conf = mpath_lib_init();
1119         return 0;
1120     }'''
1121   libmpathpersist = cc.find_library('mpathpersist',
1122                                     required: get_option('mpath'))
1123   if libmpathpersist.found()
1124     mpathlibs += libmpathpersist
1125     if get_option('prefer_static')
1126       mpathlibs += cc.find_library('devmapper',
1127                                      required: get_option('mpath'))
1128     endif
1129     mpathlibs += cc.find_library('multipath',
1130                                  required: get_option('mpath'))
1131     foreach lib: mpathlibs
1132       if not lib.found()
1133         mpathlibs = []
1134         break
1135       endif
1136     endforeach
1137     if mpathlibs.length() == 0
1138       msg = 'Dependencies missing for libmpathpersist'
1139     elif cc.links(mpath_test_source, dependencies: mpathlibs)
1140       mpathpersist = declare_dependency(dependencies: mpathlibs)
1141     else
1142       msg = 'Cannot detect libmpathpersist API'
1143     endif
1144     if not mpathpersist.found()
1145       if get_option('mpath').enabled()
1146         error(msg)
1147       else
1148         warning(msg + ', disabling')
1149       endif
1150     endif
1151   endif
1152 endif
1153
1154 iconv = not_found
1155 curses = not_found
1156 if have_system and get_option('curses').allowed()
1157   curses_test = '''
1158     #if defined(__APPLE__) || defined(__OpenBSD__)
1159     #define _XOPEN_SOURCE_EXTENDED 1
1160     #endif
1161     #include <locale.h>
1162     #include <curses.h>
1163     #include <wchar.h>
1164     int main(void) {
1165       wchar_t wch = L'w';
1166       setlocale(LC_ALL, "");
1167       resize_term(0, 0);
1168       addwstr(L"wide chars\n");
1169       addnwstr(&wch, 1);
1170       add_wch(WACS_DEGREE);
1171       return 0;
1172     }'''
1173
1174   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1175   curses = dependency(curses_dep_list,
1176                       required: false,
1177                       method: 'pkg-config')
1178   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1179   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1180   if curses.found()
1181     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1182       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1183                                   version: curses.version())
1184     else
1185       msg = 'curses package not usable'
1186       curses = not_found
1187     endif
1188   endif
1189   if not curses.found()
1190     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1191     if targetos != 'windows' and not has_curses_h
1192       message('Trying with /usr/include/ncursesw')
1193       curses_compile_args += ['-I/usr/include/ncursesw']
1194       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1195     endif
1196     if has_curses_h
1197       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1198       foreach curses_libname : curses_libname_list
1199         libcurses = cc.find_library(curses_libname,
1200                                     required: false)
1201         if libcurses.found()
1202           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1203             curses = declare_dependency(compile_args: curses_compile_args,
1204                                         dependencies: [libcurses])
1205             break
1206           else
1207             msg = 'curses library not usable'
1208           endif
1209         endif
1210       endforeach
1211     endif
1212   endif
1213   if get_option('iconv').allowed()
1214     foreach link_args : [ ['-liconv'], [] ]
1215       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1216       # We need to use libiconv if available because mixing libiconv's headers with
1217       # the system libc does not work.
1218       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1219       # included in the command line and libiconv will not be found.
1220       if cc.links('''
1221         #include <iconv.h>
1222         int main(void) {
1223           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1224           return conv != (iconv_t) -1;
1225         }''', args: link_args, dependencies: glib)
1226         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1227         break
1228       endif
1229     endforeach
1230   endif
1231   if curses.found() and not iconv.found()
1232     if get_option('iconv').enabled()
1233       error('iconv not available')
1234     endif
1235     msg = 'iconv required for curses UI but not available'
1236     curses = not_found
1237   endif
1238   if not curses.found() and msg != ''
1239     if get_option('curses').enabled()
1240       error(msg)
1241     else
1242       warning(msg + ', disabling')
1243     endif
1244   endif
1245 endif
1246
1247 brlapi = not_found
1248 if not get_option('brlapi').auto() or have_system
1249   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1250                          required: get_option('brlapi'))
1251   if brlapi.found() and not cc.links('''
1252      #include <brlapi.h>
1253      #include <stddef.h>
1254      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1255     brlapi = not_found
1256     if get_option('brlapi').enabled()
1257       error('could not link brlapi')
1258     else
1259       warning('could not link brlapi, disabling')
1260     endif
1261   endif
1262 endif
1263
1264 sdl = not_found
1265 if not get_option('sdl').auto() or have_system
1266   sdl = dependency('sdl2', required: get_option('sdl'))
1267   sdl_image = not_found
1268 endif
1269 if sdl.found()
1270   # Some versions of SDL have problems with -Wundef
1271   if not cc.compiles('''
1272                      #include <SDL.h>
1273                      #include <SDL_syswm.h>
1274                      int main(int argc, char *argv[]) { return 0; }
1275                      ''', dependencies: sdl, args: '-Werror=undef')
1276     sdl = declare_dependency(compile_args: '-Wno-undef',
1277                              dependencies: sdl,
1278                              version: sdl.version())
1279   endif
1280   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1281                          method: 'pkg-config')
1282 else
1283   if get_option('sdl_image').enabled()
1284     error('sdl-image required, but SDL was @0@'.format(
1285           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1286   endif
1287   sdl_image = not_found
1288 endif
1289
1290 rbd = not_found
1291 if not get_option('rbd').auto() or have_block
1292   librados = cc.find_library('rados', required: get_option('rbd'))
1293   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1294                            required: get_option('rbd'))
1295   if librados.found() and librbd.found()
1296     if cc.links('''
1297       #include <stdio.h>
1298       #include <rbd/librbd.h>
1299       int main(void) {
1300         rados_t cluster;
1301         rados_create(&cluster, NULL);
1302         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1303         #error
1304         #endif
1305         return 0;
1306       }''', dependencies: [librbd, librados])
1307       rbd = declare_dependency(dependencies: [librbd, librados])
1308     elif get_option('rbd').enabled()
1309       error('librbd >= 1.12.0 required')
1310     else
1311       warning('librbd >= 1.12.0 not found, disabling')
1312     endif
1313   endif
1314 endif
1315
1316 glusterfs = not_found
1317 glusterfs_ftruncate_has_stat = false
1318 glusterfs_iocb_has_stat = false
1319 if not get_option('glusterfs').auto() or have_block
1320   glusterfs = dependency('glusterfs-api', version: '>=3',
1321                          required: get_option('glusterfs'),
1322                          method: 'pkg-config')
1323   if glusterfs.found()
1324     glusterfs_ftruncate_has_stat = cc.links('''
1325       #include <glusterfs/api/glfs.h>
1326
1327       int
1328       main(void)
1329       {
1330           /* new glfs_ftruncate() passes two additional args */
1331           return glfs_ftruncate(NULL, 0, NULL, NULL);
1332       }
1333     ''', dependencies: glusterfs)
1334     glusterfs_iocb_has_stat = cc.links('''
1335       #include <glusterfs/api/glfs.h>
1336
1337       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1338       static void
1339       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1340       {}
1341
1342       int
1343       main(void)
1344       {
1345           glfs_io_cbk iocb = &glusterfs_iocb;
1346           iocb(NULL, 0 , NULL, NULL, NULL);
1347           return 0;
1348       }
1349     ''', dependencies: glusterfs)
1350   endif
1351 endif
1352
1353 libssh = not_found
1354 if not get_option('libssh').auto() or have_block
1355   libssh = dependency('libssh', version: '>=0.8.7',
1356                     method: 'pkg-config',
1357                     required: get_option('libssh'))
1358 endif
1359
1360 libbzip2 = not_found
1361 if not get_option('bzip2').auto() or have_block
1362   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1363                              required: get_option('bzip2'))
1364   if libbzip2.found() and not cc.links('''
1365      #include <bzlib.h>
1366      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1367     libbzip2 = not_found
1368     if get_option('bzip2').enabled()
1369       error('could not link libbzip2')
1370     else
1371       warning('could not link libbzip2, disabling')
1372     endif
1373   endif
1374 endif
1375
1376 liblzfse = not_found
1377 if not get_option('lzfse').auto() or have_block
1378   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1379                              required: get_option('lzfse'))
1380 endif
1381 if liblzfse.found() and not cc.links('''
1382    #include <lzfse.h>
1383    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1384   liblzfse = not_found
1385   if get_option('lzfse').enabled()
1386     error('could not link liblzfse')
1387   else
1388     warning('could not link liblzfse, disabling')
1389   endif
1390 endif
1391
1392 oss = not_found
1393 if get_option('oss').allowed() and have_system
1394   if not cc.has_header('sys/soundcard.h')
1395     # not found
1396   elif targetos == 'netbsd'
1397     oss = cc.find_library('ossaudio', required: get_option('oss'))
1398   else
1399     oss = declare_dependency()
1400   endif
1401
1402   if not oss.found()
1403     if get_option('oss').enabled()
1404       error('OSS not found')
1405     endif
1406   endif
1407 endif
1408 dsound = not_found
1409 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1410   if cc.has_header('dsound.h')
1411     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1412   endif
1413
1414   if not dsound.found()
1415     if get_option('dsound').enabled()
1416       error('DirectSound not found')
1417     endif
1418   endif
1419 endif
1420
1421 coreaudio = not_found
1422 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1423   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1424                          required: get_option('coreaudio'))
1425 endif
1426
1427 opengl = not_found
1428 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1429   epoxy = dependency('epoxy', method: 'pkg-config',
1430                       required: get_option('opengl'))
1431   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1432     opengl = epoxy
1433   elif get_option('opengl').enabled()
1434     error('epoxy/egl.h not found')
1435   endif
1436 endif
1437 gbm = not_found
1438 if (have_system or have_tools) and (virgl.found() or opengl.found())
1439   gbm = dependency('gbm', method: 'pkg-config', required: false)
1440 endif
1441 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1442
1443 gnutls = not_found
1444 gnutls_crypto = not_found
1445 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1446   # For general TLS support our min gnutls matches
1447   # that implied by our platform support matrix
1448   #
1449   # For the crypto backends, we look for a newer
1450   # gnutls:
1451   #
1452   #   Version 3.6.8  is needed to get XTS
1453   #   Version 3.6.13 is needed to get PBKDF
1454   #   Version 3.6.14 is needed to get HW accelerated XTS
1455   #
1456   # If newer enough gnutls isn't available, we can
1457   # still use a different crypto backend to satisfy
1458   # the platform support requirements
1459   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1460                              method: 'pkg-config',
1461                              required: false)
1462   if gnutls_crypto.found()
1463     gnutls = gnutls_crypto
1464   else
1465     # Our min version if all we need is TLS
1466     gnutls = dependency('gnutls', version: '>=3.5.18',
1467                         method: 'pkg-config',
1468                         required: get_option('gnutls'))
1469   endif
1470 endif
1471
1472 # We prefer use of gnutls for crypto, unless the options
1473 # explicitly asked for nettle or gcrypt.
1474 #
1475 # If gnutls isn't available for crypto, then we'll prefer
1476 # gcrypt over nettle for performance reasons.
1477 gcrypt = not_found
1478 nettle = not_found
1479 hogweed = not_found
1480 xts = 'none'
1481
1482 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1483   error('Only one of gcrypt & nettle can be enabled')
1484 endif
1485
1486 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1487 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1488   gnutls_crypto = not_found
1489 endif
1490
1491 if not gnutls_crypto.found()
1492   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1493     gcrypt = dependency('libgcrypt', version: '>=1.8',
1494                         method: 'config-tool',
1495                         required: get_option('gcrypt'))
1496     # Debian has removed -lgpg-error from libgcrypt-config
1497     # as it "spreads unnecessary dependencies" which in
1498     # turn breaks static builds...
1499     if gcrypt.found() and get_option('prefer_static')
1500       gcrypt = declare_dependency(dependencies:
1501         [gcrypt,
1502          cc.find_library('gpg-error', required: true)],
1503         version: gcrypt.version())
1504     endif
1505   endif
1506   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1507     nettle = dependency('nettle', version: '>=3.4',
1508                         method: 'pkg-config',
1509                         required: get_option('nettle'))
1510     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1511       xts = 'private'
1512     endif
1513   endif
1514 endif
1515
1516 gmp = dependency('gmp', required: false, method: 'pkg-config')
1517 if nettle.found() and gmp.found()
1518   hogweed = dependency('hogweed', version: '>=3.4',
1519                        method: 'pkg-config',
1520                        required: get_option('nettle'))
1521 endif
1522
1523
1524 gtk = not_found
1525 gtkx11 = not_found
1526 vte = not_found
1527 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1528
1529 if not get_option('gtk').auto() or have_system
1530   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1531                    method: 'pkg-config',
1532                    required: get_option('gtk'))
1533   if gtk.found()
1534     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1535                         method: 'pkg-config',
1536                         required: false)
1537     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1538                              version: gtk.version())
1539
1540     if not get_option('vte').auto() or have_system
1541       vte = dependency('vte-2.91',
1542                        method: 'pkg-config',
1543                        required: get_option('vte'))
1544     endif
1545   elif have_gtk_clipboard
1546     error('GTK clipboard requested, but GTK not found')
1547   endif
1548 endif
1549
1550 x11 = not_found
1551 if gtkx11.found()
1552   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1553 endif
1554 png = not_found
1555 if get_option('png').allowed() and have_system
1556    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1557                     method: 'pkg-config')
1558 endif
1559 vnc = not_found
1560 jpeg = not_found
1561 sasl = not_found
1562 if get_option('vnc').allowed() and have_system
1563   vnc = declare_dependency() # dummy dependency
1564   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1565                     method: 'pkg-config')
1566   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1567                          required: get_option('vnc_sasl'))
1568   if sasl.found()
1569     sasl = declare_dependency(dependencies: sasl,
1570                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1571   endif
1572 endif
1573
1574 pam = not_found
1575 if not get_option('auth_pam').auto() or have_system
1576   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1577                         required: get_option('auth_pam'))
1578 endif
1579 if pam.found() and not cc.links('''
1580    #include <stddef.h>
1581    #include <security/pam_appl.h>
1582    int main(void) {
1583      const char *service_name = "qemu";
1584      const char *user = "frank";
1585      const struct pam_conv pam_conv = { 0 };
1586      pam_handle_t *pamh = NULL;
1587      pam_start(service_name, user, &pam_conv, &pamh);
1588      return 0;
1589    }''', dependencies: pam)
1590   pam = not_found
1591   if get_option('auth_pam').enabled()
1592     error('could not link libpam')
1593   else
1594     warning('could not link libpam, disabling')
1595   endif
1596 endif
1597
1598 snappy = not_found
1599 if not get_option('snappy').auto() or have_system
1600   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1601                            required: get_option('snappy'))
1602 endif
1603 if snappy.found() and not linker.links('''
1604    #include <snappy-c.h>
1605    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1606   snappy = not_found
1607   if get_option('snappy').enabled()
1608     error('could not link libsnappy')
1609   else
1610     warning('could not link libsnappy, disabling')
1611   endif
1612 endif
1613
1614 lzo = not_found
1615 if not get_option('lzo').auto() or have_system
1616   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1617                         required: get_option('lzo'))
1618 endif
1619 if lzo.found() and not cc.links('''
1620    #include <lzo/lzo1x.h>
1621    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1622   lzo = not_found
1623   if get_option('lzo').enabled()
1624     error('could not link liblzo2')
1625   else
1626     warning('could not link liblzo2, disabling')
1627   endif
1628 endif
1629
1630 numa = not_found
1631 if not get_option('numa').auto() or have_system or have_tools
1632   numa = cc.find_library('numa', has_headers: ['numa.h'],
1633                               required: get_option('numa'))
1634 endif
1635 if numa.found() and not cc.links('''
1636    #include <numa.h>
1637    int main(void) { return numa_available(); }
1638    ''', dependencies: numa)
1639   numa = not_found
1640   if get_option('numa').enabled()
1641     error('could not link numa')
1642   else
1643     warning('could not link numa, disabling')
1644   endif
1645 endif
1646
1647 rdma = not_found
1648 if not get_option('rdma').auto() or have_system
1649   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1650   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1651                                required: get_option('rdma')),
1652                cc.find_library('ibverbs', required: get_option('rdma')),
1653                libumad]
1654   rdma = declare_dependency(dependencies: rdma_libs)
1655   foreach lib: rdma_libs
1656     if not lib.found()
1657       rdma = not_found
1658     endif
1659   endforeach
1660 endif
1661
1662 xen = not_found
1663 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1664   xencontrol = dependency('xencontrol', required: false,
1665                           method: 'pkg-config')
1666   if xencontrol.found()
1667     xen_pc = declare_dependency(version: xencontrol.version(),
1668       dependencies: [
1669         xencontrol,
1670         # disabler: true makes xen_pc.found() return false if any is not found
1671         dependency('xenstore', required: false,
1672                    method: 'pkg-config',
1673                    disabler: true),
1674         dependency('xenforeignmemory', required: false,
1675                    method: 'pkg-config',
1676                    disabler: true),
1677         dependency('xengnttab', required: false,
1678                    method: 'pkg-config',
1679                    disabler: true),
1680         dependency('xenevtchn', required: false,
1681                    method: 'pkg-config',
1682                    disabler: true),
1683         dependency('xendevicemodel', required: false,
1684                    method: 'pkg-config',
1685                    disabler: true),
1686         # optional, no "disabler: true"
1687         dependency('xentoolcore', required: false,
1688                    method: 'pkg-config')])
1689     if xen_pc.found()
1690       xen = xen_pc
1691     endif
1692   endif
1693   if not xen.found()
1694     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
1695     xen_libs = {
1696       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1697       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1698       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1699       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1700       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1701     }
1702     xen_deps = {}
1703     foreach ver: xen_tests
1704       # cache the various library tests to avoid polluting the logs
1705       xen_test_deps = []
1706       foreach l: xen_libs[ver]
1707         if l not in xen_deps
1708           xen_deps += { l: cc.find_library(l, required: false) }
1709         endif
1710         xen_test_deps += xen_deps[l]
1711       endforeach
1712
1713       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1714       xen_version = ver.split('.')
1715       xen_ctrl_version = xen_version[0] + \
1716         ('0' + xen_version[1]).substring(-2) + \
1717         ('0' + xen_version[2]).substring(-2)
1718       if cc.links(files('scripts/xen-detect.c'),
1719                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1720                   dependencies: xen_test_deps)
1721         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1722         break
1723       endif
1724     endforeach
1725   endif
1726   if xen.found()
1727     accelerators += 'CONFIG_XEN'
1728   elif get_option('xen').enabled()
1729     error('could not compile and link Xen test program')
1730   endif
1731 endif
1732 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1733   .require(xen.found(),
1734            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1735   .require(targetos == 'linux',
1736            error_message: 'Xen PCI passthrough not available on this platform') \
1737   .require(cpu == 'x86'  or cpu == 'x86_64',
1738            error_message: 'Xen PCI passthrough not available on this platform') \
1739   .allowed()
1740
1741
1742 cacard = not_found
1743 if not get_option('smartcard').auto() or have_system
1744   cacard = dependency('libcacard', required: get_option('smartcard'),
1745                       version: '>=2.5.1', method: 'pkg-config')
1746 endif
1747 u2f = not_found
1748 if have_system
1749   u2f = dependency('u2f-emu', required: get_option('u2f'),
1750                    method: 'pkg-config')
1751 endif
1752 canokey = not_found
1753 if have_system
1754   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1755                    method: 'pkg-config')
1756 endif
1757 usbredir = not_found
1758 if not get_option('usb_redir').auto() or have_system
1759   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1760                         version: '>=0.6', method: 'pkg-config')
1761 endif
1762 libusb = not_found
1763 if not get_option('libusb').auto() or have_system
1764   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1765                       version: '>=1.0.13', method: 'pkg-config')
1766 endif
1767
1768 libpmem = not_found
1769 if not get_option('libpmem').auto() or have_system
1770   libpmem = dependency('libpmem', required: get_option('libpmem'),
1771                        method: 'pkg-config')
1772 endif
1773 libdaxctl = not_found
1774 if not get_option('libdaxctl').auto() or have_system
1775   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1776                          version: '>=57', method: 'pkg-config')
1777 endif
1778 tasn1 = not_found
1779 if gnutls.found()
1780   tasn1 = dependency('libtasn1',
1781                      method: 'pkg-config')
1782 endif
1783 keyutils = not_found
1784 if get_option('keyring').enabled()
1785   keyutils = dependency('libkeyutils', required: false, method: 'pkg-config')
1786 endif
1787
1788 has_gettid = cc.has_function('gettid')
1789
1790 # libselinux
1791 selinux = dependency('libselinux',
1792                      required: get_option('selinux'),
1793                      method: 'pkg-config')
1794
1795 # Malloc tests
1796
1797 malloc = []
1798 if get_option('malloc') == 'system'
1799   has_malloc_trim = \
1800     get_option('malloc_trim').allowed() and \
1801     cc.has_function('malloc_trim', prefix: '#include <malloc.h>')
1802 else
1803   has_malloc_trim = false
1804   malloc = cc.find_library(get_option('malloc'), required: true)
1805 endif
1806 if not has_malloc_trim and get_option('malloc_trim').enabled()
1807   if get_option('malloc') == 'system'
1808     error('malloc_trim not available on this platform.')
1809   else
1810     error('malloc_trim not available with non-libc memory allocator')
1811   endif
1812 endif
1813
1814 gnu_source_prefix = '''
1815   #ifndef _GNU_SOURCE
1816   #define _GNU_SOURCE
1817   #endif
1818 '''
1819
1820 # Check whether the glibc provides STATX_BASIC_STATS
1821
1822 has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_source_prefix)
1823
1824 # Check whether statx() provides mount ID information
1825
1826 has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
1827
1828 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1829   .require(targetos == 'linux',
1830            error_message: 'vhost_user_blk_server requires linux') \
1831   .require(have_vhost_user,
1832            error_message: 'vhost_user_blk_server requires vhost-user support') \
1833   .disable_auto_if(not have_tools and not have_system) \
1834   .allowed()
1835
1836 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1837   error('Cannot enable fuse-lseek while fuse is disabled')
1838 endif
1839
1840 fuse = dependency('fuse3', required: get_option('fuse'),
1841                   version: '>=3.1', method: 'pkg-config')
1842
1843 fuse_lseek = not_found
1844 if get_option('fuse_lseek').allowed()
1845   if fuse.version().version_compare('>=3.8')
1846     # Dummy dependency
1847     fuse_lseek = declare_dependency()
1848   elif get_option('fuse_lseek').enabled()
1849     if fuse.found()
1850       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1851     else
1852       error('fuse-lseek requires libfuse, which was not found')
1853     endif
1854   endif
1855 endif
1856
1857 have_libvduse = (targetos == 'linux')
1858 if get_option('libvduse').enabled()
1859     if targetos != 'linux'
1860         error('libvduse requires linux')
1861     endif
1862 elif get_option('libvduse').disabled()
1863     have_libvduse = false
1864 endif
1865
1866 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1867 if get_option('vduse_blk_export').enabled()
1868     if targetos != 'linux'
1869         error('vduse_blk_export requires linux')
1870     elif not have_libvduse
1871         error('vduse_blk_export requires libvduse support')
1872     endif
1873 elif get_option('vduse_blk_export').disabled()
1874     have_vduse_blk_export = false
1875 endif
1876
1877 # libbpf
1878 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1879 if libbpf.found() and not cc.links('''
1880    #include <bpf/libbpf.h>
1881    int main(void)
1882    {
1883      bpf_object__destroy_skeleton(NULL);
1884      return 0;
1885    }''', dependencies: libbpf)
1886   libbpf = not_found
1887   if get_option('bpf').enabled()
1888     error('libbpf skeleton test failed')
1889   else
1890     warning('libbpf skeleton test failed, disabling')
1891   endif
1892 endif
1893
1894 # libdw
1895 libdw = not_found
1896 if not get_option('libdw').auto() or \
1897         (not get_option('prefer_static') and (have_system or have_user))
1898     libdw = dependency('libdw',
1899                        method: 'pkg-config',
1900                        required: get_option('libdw'))
1901 endif
1902
1903 #################
1904 # config-host.h #
1905 #################
1906
1907 audio_drivers_selected = []
1908 if have_system
1909   audio_drivers_available = {
1910     'alsa': alsa.found(),
1911     'coreaudio': coreaudio.found(),
1912     'dsound': dsound.found(),
1913     'jack': jack.found(),
1914     'oss': oss.found(),
1915     'pa': pulse.found(),
1916     'pipewire': pipewire.found(),
1917     'sdl': sdl.found(),
1918     'sndio': sndio.found(),
1919   }
1920   foreach k, v: audio_drivers_available
1921     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1922   endforeach
1923
1924   # Default to native drivers first, OSS second, SDL third
1925   audio_drivers_priority = \
1926     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1927     (targetos == 'linux' ? [] : [ 'sdl' ])
1928   audio_drivers_default = []
1929   foreach k: audio_drivers_priority
1930     if audio_drivers_available[k]
1931       audio_drivers_default += k
1932     endif
1933   endforeach
1934
1935   foreach k: get_option('audio_drv_list')
1936     if k == 'default'
1937       audio_drivers_selected += audio_drivers_default
1938     elif not audio_drivers_available[k]
1939       error('Audio driver "@0@" not available.'.format(k))
1940     else
1941       audio_drivers_selected += k
1942     endif
1943   endforeach
1944 endif
1945 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1946                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1947
1948 if get_option('cfi')
1949   cfi_flags=[]
1950   # Check for dependency on LTO
1951   if not get_option('b_lto')
1952     error('Selected Control-Flow Integrity but LTO is disabled')
1953   endif
1954   if enable_modules
1955     error('Selected Control-Flow Integrity is not compatible with modules')
1956   endif
1957   # Check for cfi flags. CFI requires LTO so we can't use
1958   # get_supported_arguments, but need a more complex "compiles" which allows
1959   # custom arguments
1960   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1961                  args: ['-flto', '-fsanitize=cfi-icall'] )
1962     cfi_flags += '-fsanitize=cfi-icall'
1963   else
1964     error('-fsanitize=cfi-icall is not supported by the compiler')
1965   endif
1966   if cc.compiles('int main () { return 0; }',
1967                  name: '-fsanitize-cfi-icall-generalize-pointers',
1968                  args: ['-flto', '-fsanitize=cfi-icall',
1969                         '-fsanitize-cfi-icall-generalize-pointers'] )
1970     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1971   else
1972     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1973   endif
1974   if get_option('cfi_debug')
1975     if cc.compiles('int main () { return 0; }',
1976                    name: '-fno-sanitize-trap=cfi-icall',
1977                    args: ['-flto', '-fsanitize=cfi-icall',
1978                           '-fno-sanitize-trap=cfi-icall'] )
1979       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1980     else
1981       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1982     endif
1983   endif
1984   add_global_arguments(cfi_flags, native: false, language: all_languages)
1985   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
1986 endif
1987
1988 have_host_block_device = (targetos != 'darwin' or
1989     cc.has_header('IOKit/storage/IOMedia.h'))
1990
1991 dbus_display = get_option('dbus_display') \
1992   .require(gio.version().version_compare('>=2.64'),
1993            error_message: '-display dbus requires glib>=2.64') \
1994   .require(gdbus_codegen.found(),
1995            error_message: gdbus_codegen_error.format('-display dbus')) \
1996   .allowed()
1997
1998 have_virtfs = get_option('virtfs') \
1999     .require(targetos == 'linux' or targetos == 'darwin',
2000              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
2001     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
2002              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
2003     .require(targetos == 'darwin' or libattr.found(),
2004              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
2005     .disable_auto_if(not have_tools and not have_system) \
2006     .allowed()
2007
2008 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
2009     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
2010     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
2011     .disable_auto_if(not have_tools) \
2012     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
2013     .allowed()
2014
2015 if get_option('block_drv_ro_whitelist') == ''
2016   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
2017 else
2018   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
2019         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2020 endif
2021 if get_option('block_drv_rw_whitelist') == ''
2022   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2023 else
2024   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2025         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2026 endif
2027
2028 foreach k : get_option('trace_backends')
2029   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2030 endforeach
2031 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2032 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2033 if iasl.found()
2034   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2035 endif
2036 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2037 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2038 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2039 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2040 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2041
2042 qemu_firmwarepath = ''
2043 foreach k : get_option('qemu_firmwarepath')
2044   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2045 endforeach
2046 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2047
2048 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2049 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2050 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2051 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2052 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2053 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2054
2055 if enable_modules
2056   config_host_data.set('CONFIG_STAMP', run_command(
2057       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2058       meson.project_version(), get_option('pkgversion'), '--',
2059       meson.current_source_dir() / 'configure',
2060       capture: true, check: true).stdout().strip())
2061 endif
2062
2063 have_slirp_smbd = get_option('slirp_smbd') \
2064   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2065   .allowed()
2066 if have_slirp_smbd
2067   smbd_path = get_option('smbd')
2068   if smbd_path == ''
2069     smbd_path = (targetos == 'solaris' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2070   endif
2071   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2072 endif
2073
2074 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2075
2076 if get_option('module_upgrades') and not enable_modules
2077   error('Cannot enable module-upgrades as modules are not enabled')
2078 endif
2079 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2080
2081 config_host_data.set('CONFIG_ATTR', libattr.found())
2082 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2083 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2084 config_host_data.set('CONFIG_COCOA', cocoa.found())
2085 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2086 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2087 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2088 config_host_data.set('CONFIG_LZO', lzo.found())
2089 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
2090 config_host_data.set('CONFIG_BLKIO', blkio.found())
2091 if blkio.found()
2092   config_host_data.set('CONFIG_BLKIO_VHOST_VDPA_FD',
2093                        blkio.version().version_compare('>=1.3.0'))
2094 endif
2095 config_host_data.set('CONFIG_CURL', curl.found())
2096 config_host_data.set('CONFIG_CURSES', curses.found())
2097 config_host_data.set('CONFIG_GBM', gbm.found())
2098 config_host_data.set('CONFIG_GIO', gio.found())
2099 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2100 if glusterfs.found()
2101   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2102   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2103   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2104   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2105   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2106   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2107 endif
2108 config_host_data.set('CONFIG_GTK', gtk.found())
2109 config_host_data.set('CONFIG_VTE', vte.found())
2110 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2111 config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
2112 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2113 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2114 config_host_data.set('CONFIG_EBPF', libbpf.found())
2115 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2116 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2117 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2118 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2119 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2120 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2121 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2122 config_host_data.set('CONFIG_MODULES', enable_modules)
2123 config_host_data.set('CONFIG_NUMA', numa.found())
2124 if numa.found()
2125   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2126                        cc.has_function('numa_has_preferred_many',
2127                                        dependencies: numa))
2128 endif
2129 config_host_data.set('CONFIG_OPENGL', opengl.found())
2130 config_host_data.set('CONFIG_RBD', rbd.found())
2131 config_host_data.set('CONFIG_RDMA', rdma.found())
2132 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2133 config_host_data.set('CONFIG_SDL', sdl.found())
2134 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2135 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2136 if seccomp.found()
2137   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2138 endif
2139 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2140 config_host_data.set('CONFIG_TPM', have_tpm)
2141 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2142 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2143 config_host_data.set('CONFIG_VDE', vde.found())
2144 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2145 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2146 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2147 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2148 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2149 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2150 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2151 config_host_data.set('CONFIG_VMNET', vmnet.found())
2152 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2153 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2154 config_host_data.set('CONFIG_PNG', png.found())
2155 config_host_data.set('CONFIG_VNC', vnc.found())
2156 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2157 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2158 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2159 config_host_data.set('CONFIG_VTE', vte.found())
2160 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2161 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2162 config_host_data.set('CONFIG_GETTID', has_gettid)
2163 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2164 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2165 config_host_data.set('CONFIG_TASN1', tasn1.found())
2166 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2167 config_host_data.set('CONFIG_NETTLE', nettle.found())
2168 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2169 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2170 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2171 config_host_data.set('CONFIG_STATX', has_statx)
2172 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2173 config_host_data.set('CONFIG_ZSTD', zstd.found())
2174 config_host_data.set('CONFIG_FUSE', fuse.found())
2175 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2176 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2177 if spice_protocol.found()
2178 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2179 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2180 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2181 endif
2182 config_host_data.set('CONFIG_SPICE', spice.found())
2183 config_host_data.set('CONFIG_X11', x11.found())
2184 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2185 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2186 config_host_data.set('CONFIG_SELINUX', selinux.found())
2187 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2188 config_host_data.set('CONFIG_LIBDW', libdw.found())
2189 if xen.found()
2190   # protect from xen.version() having less than three components
2191   xen_version = xen.version().split('.') + ['0', '0']
2192   xen_ctrl_version = xen_version[0] + \
2193     ('0' + xen_version[1]).substring(-2) + \
2194     ('0' + xen_version[2]).substring(-2)
2195   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2196 endif
2197 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2198 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2199 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2200 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2201
2202 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2203 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2204
2205 have_coroutine_pool = get_option('coroutine_pool')
2206 if get_option('debug_stack_usage') and have_coroutine_pool
2207   message('Disabling coroutine pool to measure stack usage')
2208   have_coroutine_pool = false
2209 endif
2210 config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2211 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2212 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2213 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2214 config_host_data.set('CONFIG_GPROF', get_option('gprof'))
2215 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2216 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2217 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2218
2219 # has_header
2220 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2221 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2222 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2223 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2224 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2225 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2226 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2227 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2228 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2229 if targetos == 'windows'
2230   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2231 endif
2232
2233 # has_function
2234 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2235 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2236 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2237 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2238 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2239 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2240 config_host_data.set('CONFIG_GETCPU', cc.has_function('getcpu', prefix: gnu_source_prefix))
2241 config_host_data.set('CONFIG_SCHED_GETCPU', cc.has_function('sched_getcpu', prefix: '#include <sched.h>'))
2242 # Note that we need to specify prefix: here to avoid incorrectly
2243 # thinking that Windows has posix_memalign()
2244 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2245 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2246 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2247 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2248 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2249 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2250 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2251 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2252 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2253 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2254 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2255 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2256 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2257 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2258 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2259 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2260 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2261 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2262 if rbd.found()
2263   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2264                        cc.has_function('rbd_namespace_exists',
2265                                        dependencies: rbd,
2266                                        prefix: '#include <rbd/librbd.h>'))
2267 endif
2268 if rdma.found()
2269   config_host_data.set('HAVE_IBV_ADVISE_MR',
2270                        cc.has_function('ibv_advise_mr',
2271                                        dependencies: rdma,
2272                                        prefix: '#include <infiniband/verbs.h>'))
2273 endif
2274
2275 have_asan_fiber = false
2276 if get_option('sanitizers') and \
2277    not cc.has_function('__sanitizer_start_switch_fiber',
2278                          args: '-fsanitize=address',
2279                          prefix: '#include <sanitizer/asan_interface.h>')
2280   warning('Missing ASAN due to missing fiber annotation interface')
2281   warning('Without code annotation, the report may be inferior.')
2282 else
2283   have_asan_fiber = true
2284 endif
2285 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2286
2287 # has_header_symbol
2288 config_host_data.set('CONFIG_BLKZONED',
2289                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2290 config_host_data.set('CONFIG_EPOLL_CREATE1',
2291                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2292 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2293                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2294                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2295 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2296                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2297 config_host_data.set('CONFIG_FIEMAP',
2298                      cc.has_header('linux/fiemap.h') and
2299                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2300 config_host_data.set('CONFIG_GETRANDOM',
2301                      cc.has_function('getrandom') and
2302                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2303 config_host_data.set('CONFIG_INOTIFY',
2304                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2305 config_host_data.set('CONFIG_INOTIFY1',
2306                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2307 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2308                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2309 config_host_data.set('CONFIG_RTNETLINK',
2310                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2311 config_host_data.set('CONFIG_SYSMACROS',
2312                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2313 config_host_data.set('HAVE_OPTRESET',
2314                      cc.has_header_symbol('getopt.h', 'optreset'))
2315 config_host_data.set('HAVE_IPPROTO_MPTCP',
2316                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2317
2318 # has_member
2319 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2320                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2321                                    prefix: '#include <signal.h>'))
2322 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2323                      cc.has_member('struct stat', 'st_atim',
2324                                    prefix: '#include <sys/stat.h>'))
2325 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2326                      cc.has_member('struct blk_zone', 'capacity',
2327                                    prefix: '#include <linux/blkzoned.h>'))
2328
2329 # has_type
2330 config_host_data.set('CONFIG_IOVEC',
2331                      cc.has_type('struct iovec',
2332                                  prefix: '#include <sys/uio.h>'))
2333 config_host_data.set('HAVE_UTMPX',
2334                      cc.has_type('struct utmpx',
2335                                  prefix: '#include <utmpx.h>'))
2336
2337 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2338   #include <sys/eventfd.h>
2339   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2340 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2341   #include <unistd.h>
2342   int main(void) {
2343   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2344   return fdatasync(0);
2345   #else
2346   #error Not supported
2347   #endif
2348   }'''))
2349
2350 has_madvise = cc.links(gnu_source_prefix + '''
2351   #include <sys/types.h>
2352   #include <sys/mman.h>
2353   #include <stddef.h>
2354   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2355 missing_madvise_proto = false
2356 if has_madvise
2357   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2358   # but forget to prototype it. In this case, has_madvise will be true (the
2359   # test program links despite a compile warning). To detect the
2360   # missing-prototype case, we try again with a definitely-bogus prototype.
2361   # This will only compile if the system headers don't provide the prototype;
2362   # otherwise the conflicting prototypes will cause a compiler error.
2363   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2364     #include <sys/types.h>
2365     #include <sys/mman.h>
2366     #include <stddef.h>
2367     extern int madvise(int);
2368     int main(void) { return madvise(0); }''')
2369 endif
2370 config_host_data.set('CONFIG_MADVISE', has_madvise)
2371 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2372
2373 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2374   #include <sys/mman.h>
2375   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2376 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2377   #include <fcntl.h>
2378   #if !defined(AT_EMPTY_PATH)
2379   # error missing definition
2380   #else
2381   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2382   #endif'''))
2383 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2384   #include <sys/mman.h>
2385   #include <stddef.h>
2386   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2387
2388 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2389   #include <pthread.h>
2390
2391   static void *f(void *p) { return NULL; }
2392   int main(void)
2393   {
2394     pthread_t thread;
2395     pthread_create(&thread, 0, f, 0);
2396     pthread_setname_np(thread, "QEMU");
2397     return 0;
2398   }''', dependencies: threads))
2399 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2400   #include <pthread.h>
2401
2402   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2403   int main(void)
2404   {
2405     pthread_t thread;
2406     pthread_create(&thread, 0, f, 0);
2407     return 0;
2408   }''', dependencies: threads))
2409 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2410   #include <pthread.h>
2411   #include <pthread_np.h>
2412
2413   static void *f(void *p) { return NULL; }
2414   int main(void)
2415   {
2416     pthread_t thread;
2417     pthread_create(&thread, 0, f, 0);
2418     pthread_set_name_np(thread, "QEMU");
2419     return 0;
2420   }''', dependencies: threads))
2421 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2422   #include <pthread.h>
2423   #include <time.h>
2424
2425   int main(void)
2426   {
2427     pthread_condattr_t attr
2428     pthread_condattr_init(&attr);
2429     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2430     return 0;
2431   }''', dependencies: threads))
2432 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2433   #include <pthread.h>
2434
2435   static void *f(void *p) { return NULL; }
2436   int main(void)
2437   {
2438     int setsize = CPU_ALLOC_SIZE(64);
2439     pthread_t thread;
2440     cpu_set_t *cpuset;
2441     pthread_create(&thread, 0, f, 0);
2442     cpuset = CPU_ALLOC(64);
2443     CPU_ZERO_S(setsize, cpuset);
2444     pthread_setaffinity_np(thread, setsize, cpuset);
2445     pthread_getaffinity_np(thread, setsize, cpuset);
2446     CPU_FREE(cpuset);
2447     return 0;
2448   }''', dependencies: threads))
2449 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2450   #include <sys/signalfd.h>
2451   #include <stddef.h>
2452   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2453 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2454   #include <unistd.h>
2455   #include <fcntl.h>
2456   #include <limits.h>
2457
2458   int main(void)
2459   {
2460     int len, fd = 0;
2461     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2462     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2463     return 0;
2464   }'''))
2465
2466 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2467   #include <sys/mman.h>
2468   int main(void) {
2469     return mlockall(MCL_FUTURE);
2470   }'''))
2471
2472 have_l2tpv3 = false
2473 if get_option('l2tpv3').allowed() and have_system
2474   have_l2tpv3 = cc.has_type('struct mmsghdr',
2475     prefix: gnu_source_prefix + '''
2476       #include <sys/socket.h>
2477       #include <linux/ip.h>''')
2478 endif
2479 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2480
2481 have_netmap = false
2482 if get_option('netmap').allowed() and have_system
2483   have_netmap = cc.compiles('''
2484     #include <inttypes.h>
2485     #include <net/if.h>
2486     #include <net/netmap.h>
2487     #include <net/netmap_user.h>
2488     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2489     #error
2490     #endif
2491     int main(void) { return 0; }''')
2492   if not have_netmap and get_option('netmap').enabled()
2493     error('Netmap headers not available')
2494   endif
2495 endif
2496 config_host_data.set('CONFIG_NETMAP', have_netmap)
2497
2498 # Work around a system header bug with some kernel/XFS header
2499 # versions where they both try to define 'struct fsxattr':
2500 # xfs headers will not try to redefine structs from linux headers
2501 # if this macro is set.
2502 config_host_data.set('HAVE_FSXATTR', cc.links('''
2503   #include <linux/fs.h>
2504   struct fsxattr foo;
2505   int main(void) {
2506     return 0;
2507   }'''))
2508
2509 # Some versions of Mac OS X incorrectly define SIZE_MAX
2510 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2511     #include <stdint.h>
2512     #include <stdio.h>
2513     int main(void) {
2514         return printf("%zu", SIZE_MAX);
2515     }''', args: ['-Werror']))
2516
2517 # See if 64-bit atomic operations are supported.
2518 # Note that without __atomic builtins, we can only
2519 # assume atomic loads/stores max at pointer size.
2520 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2521   #include <stdint.h>
2522   int main(void)
2523   {
2524     uint64_t x = 0, y = 0;
2525     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2526     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2527     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2528     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2529     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2530     return 0;
2531   }'''))
2532
2533 has_int128_type = cc.compiles('''
2534   __int128_t a;
2535   __uint128_t b;
2536   int main(void) { b = a; }''')
2537 config_host_data.set('CONFIG_INT128_TYPE', has_int128_type)
2538
2539 has_int128 = has_int128_type and cc.links('''
2540   __int128_t a;
2541   __uint128_t b;
2542   int main (void) {
2543     a = a + b;
2544     b = a * b;
2545     a = a * a;
2546     return 0;
2547   }''')
2548 config_host_data.set('CONFIG_INT128', has_int128)
2549
2550 if has_int128_type
2551   # "do we have 128-bit atomics which are handled inline and specifically not
2552   # via libatomic". The reason we can't use libatomic is documented in the
2553   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2554   # We only care about these operations on 16-byte aligned pointers, so
2555   # force 16-byte alignment of the pointer, which may be greater than
2556   # __alignof(unsigned __int128) for the host.
2557   atomic_test_128 = '''
2558     int main(int ac, char **av) {
2559       __uint128_t *p = __builtin_assume_aligned(av[ac - 1], 16);
2560       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2561       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2562       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2563       return 0;
2564     }'''
2565   has_atomic128 = cc.links(atomic_test_128)
2566
2567   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2568
2569   if not has_atomic128
2570     # Even with __builtin_assume_aligned, the above test may have failed
2571     # without optimization enabled.  Try again with optimizations locally
2572     # enabled for the function.  See
2573     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2574     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2575     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2576
2577     if not has_atomic128_opt
2578       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2579         int main(void)
2580         {
2581           __uint128_t x = 0, y = 0;
2582           __sync_val_compare_and_swap_16(&x, y, x);
2583           return 0;
2584         }
2585       '''))
2586     endif
2587   endif
2588 endif
2589
2590 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2591   #include <sys/auxv.h>
2592   int main(void) {
2593     return getauxval(AT_HWCAP) == 0;
2594   }'''))
2595
2596 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2597   #include <linux/usbdevice_fs.h>
2598
2599   #ifndef USBDEVFS_GET_CAPABILITIES
2600   #error "USBDEVFS_GET_CAPABILITIES undefined"
2601   #endif
2602
2603   #ifndef USBDEVFS_DISCONNECT_CLAIM
2604   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2605   #endif
2606
2607   int main(void) { return 0; }'''))
2608
2609 have_keyring = get_option('keyring') \
2610   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2611   .require(cc.compiles('''
2612     #include <errno.h>
2613     #include <asm/unistd.h>
2614     #include <linux/keyctl.h>
2615     #include <sys/syscall.h>
2616     #include <unistd.h>
2617     int main(void) {
2618         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2619     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2620 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2621
2622 have_cpuid_h = cc.links('''
2623   #include <cpuid.h>
2624   int main(void) {
2625     unsigned a, b, c, d;
2626     unsigned max = __get_cpuid_max(0, 0);
2627
2628     if (max >= 1) {
2629         __cpuid(1, a, b, c, d);
2630     }
2631
2632     if (max >= 7) {
2633         __cpuid_count(7, 0, a, b, c, d);
2634     }
2635
2636     return 0;
2637   }''')
2638 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2639
2640 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2641   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2642   .require(cc.links('''
2643     #include <cpuid.h>
2644     #include <immintrin.h>
2645     static int __attribute__((target("avx2"))) bar(void *a) {
2646       __m256i x = *(__m256i *)a;
2647       return _mm256_testz_si256(x, x);
2648     }
2649     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2650   '''), error_message: 'AVX2 not available').allowed())
2651
2652 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2653   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2654   .require(cc.links('''
2655     #include <cpuid.h>
2656     #include <immintrin.h>
2657     static int __attribute__((target("avx512f"))) bar(void *a) {
2658       __m512i x = *(__m512i *)a;
2659       return _mm512_test_epi64_mask(x, x);
2660     }
2661     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2662   '''), error_message: 'AVX512F not available').allowed())
2663
2664 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2665   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2666   .require(cc.links('''
2667     #include <cpuid.h>
2668     #include <immintrin.h>
2669     static int __attribute__((target("avx512bw"))) bar(void *a) {
2670       __m512i *x = a;
2671       __m512i res= _mm512_abs_epi8(*x);
2672       return res[1];
2673     }
2674     int main(int argc, char *argv[]) { return bar(argv[0]); }
2675   '''), error_message: 'AVX512BW not available').allowed())
2676
2677 have_pvrdma = get_option('pvrdma') \
2678   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2679   .require(cc.compiles(gnu_source_prefix + '''
2680     #include <sys/mman.h>
2681     int main(void)
2682     {
2683       char buf = 0;
2684       void *addr = &buf;
2685       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2686
2687       return 0;
2688     }'''), error_message: 'PVRDMA requires mremap').allowed()
2689
2690 if have_pvrdma
2691   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2692     #include <infiniband/verbs.h>
2693     int main(void)
2694     {
2695       struct ibv_mr *mr;
2696       struct ibv_pd *pd = NULL;
2697       size_t length = 10;
2698       uint64_t iova = 0;
2699       int access = 0;
2700       void *addr = NULL;
2701
2702       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2703       ibv_dereg_mr(mr);
2704       return 0;
2705     }'''))
2706 endif
2707
2708 if get_option('membarrier').disabled()
2709   have_membarrier = false
2710 elif targetos == 'windows'
2711   have_membarrier = true
2712 elif targetos == 'linux'
2713   have_membarrier = cc.compiles('''
2714     #include <linux/membarrier.h>
2715     #include <sys/syscall.h>
2716     #include <unistd.h>
2717     #include <stdlib.h>
2718     int main(void) {
2719         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2720         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2721         exit(0);
2722     }''')
2723 endif
2724 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2725   .require(have_membarrier, error_message: 'membarrier system call not available') \
2726   .allowed())
2727
2728 have_afalg = get_option('crypto_afalg') \
2729   .require(cc.compiles(gnu_source_prefix + '''
2730     #include <errno.h>
2731     #include <sys/types.h>
2732     #include <sys/socket.h>
2733     #include <linux/if_alg.h>
2734     int main(void) {
2735       int sock;
2736       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2737       return sock;
2738     }
2739   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2740 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2741
2742 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2743   'linux/vm_sockets.h', 'AF_VSOCK',
2744   prefix: '#include <sys/socket.h>',
2745 ))
2746
2747 have_vss = false
2748 have_vss_sdk = false # old xp/2003 SDK
2749 if targetos == 'windows' and link_language == 'cpp'
2750   have_vss = cxx.compiles('''
2751     #define __MIDL_user_allocate_free_DEFINED__
2752     #include <vss.h>
2753     int main(void) { return VSS_CTX_BACKUP; }''')
2754   have_vss_sdk = cxx.has_header('vscoordint.h')
2755 endif
2756 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2757
2758 foreach k, v: config_host
2759   if k.startswith('CONFIG_')
2760     config_host_data.set(k, v == 'y' ? 1 : v)
2761   endif
2762 endforeach
2763
2764 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2765 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2766 if targetos == 'windows'
2767   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2768     #include <stdio.h>
2769     int main(void) {
2770       _lock_file(NULL);
2771       _unlock_file(NULL);
2772       return 0;
2773     }''', name: '_lock_file and _unlock_file'))
2774 endif
2775
2776 if targetos == 'windows'
2777   mingw_has_setjmp_longjmp = cc.links('''
2778     #include <setjmp.h>
2779     int main(void) {
2780       /*
2781        * These functions are not available in setjmp header, but may be
2782        * available at link time, from libmingwex.a.
2783        */
2784       extern int __mingw_setjmp(jmp_buf);
2785       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2786       jmp_buf env;
2787       __mingw_setjmp(env);
2788       __mingw_longjmp(env, 0);
2789     }
2790   ''', name: 'mingw setjmp and longjmp')
2791
2792   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2793     error('mingw must provide setjmp/longjmp for windows-arm64')
2794   endif
2795 endif
2796
2797 ########################
2798 # Target configuration #
2799 ########################
2800
2801 minikconf = find_program('scripts/minikconf.py')
2802 config_all = {}
2803 config_all_devices = {}
2804 config_all_disas = {}
2805 config_devices_mak_list = []
2806 config_devices_h = {}
2807 config_target_h = {}
2808 config_target_mak = {}
2809
2810 disassemblers = {
2811   'alpha' : ['CONFIG_ALPHA_DIS'],
2812   'avr' : ['CONFIG_AVR_DIS'],
2813   'cris' : ['CONFIG_CRIS_DIS'],
2814   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2815   'hppa' : ['CONFIG_HPPA_DIS'],
2816   'i386' : ['CONFIG_I386_DIS'],
2817   'x86_64' : ['CONFIG_I386_DIS'],
2818   'm68k' : ['CONFIG_M68K_DIS'],
2819   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2820   'mips' : ['CONFIG_MIPS_DIS'],
2821   'nios2' : ['CONFIG_NIOS2_DIS'],
2822   'or1k' : ['CONFIG_OPENRISC_DIS'],
2823   'ppc' : ['CONFIG_PPC_DIS'],
2824   'riscv' : ['CONFIG_RISCV_DIS'],
2825   'rx' : ['CONFIG_RX_DIS'],
2826   's390' : ['CONFIG_S390_DIS'],
2827   'sh4' : ['CONFIG_SH4_DIS'],
2828   'sparc' : ['CONFIG_SPARC_DIS'],
2829   'xtensa' : ['CONFIG_XTENSA_DIS'],
2830   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2831 }
2832
2833 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2834 host_kconfig = \
2835   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2836   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2837   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2838   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2839   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2840   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2841   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2842   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2843   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2844   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2845   ('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
2846   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2847   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2848   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2849
2850 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2851
2852 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2853 actual_target_dirs = []
2854 fdt_required = []
2855 foreach target : target_dirs
2856   config_target = { 'TARGET_NAME': target.split('-')[0] }
2857   if target.endswith('linux-user')
2858     if targetos != 'linux'
2859       if default_targets
2860         continue
2861       endif
2862       error('Target @0@ is only available on a Linux host'.format(target))
2863     endif
2864     config_target += { 'CONFIG_LINUX_USER': 'y' }
2865   elif target.endswith('bsd-user')
2866     if 'CONFIG_BSD' not in config_host
2867       if default_targets
2868         continue
2869       endif
2870       error('Target @0@ is only available on a BSD host'.format(target))
2871     endif
2872     config_target += { 'CONFIG_BSD_USER': 'y' }
2873   elif target.endswith('softmmu')
2874     config_target += { 'CONFIG_SYSTEM_ONLY': 'y' }
2875     config_target += { 'CONFIG_SOFTMMU': 'y' }
2876   endif
2877   if target.endswith('-user')
2878     config_target += {
2879       'CONFIG_USER_ONLY': 'y',
2880       'CONFIG_QEMU_INTERP_PREFIX':
2881         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2882     }
2883   endif
2884
2885   accel_kconfig = []
2886   foreach sym: accelerators
2887     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2888       config_target += { sym: 'y' }
2889       config_all += { sym: 'y' }
2890       if target in modular_tcg
2891         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2892       else
2893         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2894       endif
2895       accel_kconfig += [ sym + '=y' ]
2896     endif
2897   endforeach
2898   if accel_kconfig.length() == 0
2899     if default_targets
2900       continue
2901     endif
2902     error('No accelerator available for target @0@'.format(target))
2903   endif
2904
2905   actual_target_dirs += target
2906   config_target += keyval.load('configs/targets' / target + '.mak')
2907   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2908
2909   if 'TARGET_NEED_FDT' in config_target
2910     fdt_required += target
2911   endif
2912
2913   # Add default keys
2914   if 'TARGET_BASE_ARCH' not in config_target
2915     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2916   endif
2917   if 'TARGET_ABI_DIR' not in config_target
2918     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2919   endif
2920   if 'TARGET_BIG_ENDIAN' not in config_target
2921     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2922   endif
2923
2924   foreach k, v: disassemblers
2925     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2926       foreach sym: v
2927         config_target += { sym: 'y' }
2928         config_all_disas += { sym: 'y' }
2929       endforeach
2930     endif
2931   endforeach
2932
2933   config_target_data = configuration_data()
2934   foreach k, v: config_target
2935     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2936       # do nothing
2937     elif ignored.contains(k)
2938       # do nothing
2939     elif k == 'TARGET_BASE_ARCH'
2940       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2941       # not used to select files from sourcesets.
2942       config_target_data.set('TARGET_' + v.to_upper(), 1)
2943     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2944       config_target_data.set_quoted(k, v)
2945     elif v == 'y'
2946       config_target_data.set(k, 1)
2947     elif v == 'n'
2948       config_target_data.set(k, 0)
2949     else
2950       config_target_data.set(k, v)
2951     endif
2952   endforeach
2953   config_target_data.set('QEMU_ARCH',
2954                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2955   config_target_h += {target: configure_file(output: target + '-config-target.h',
2956                                                configuration: config_target_data)}
2957
2958   if target.endswith('-softmmu')
2959     config_input = meson.get_external_property(target, 'default')
2960     config_devices_mak = target + '-config-devices.mak'
2961     config_devices_mak = configure_file(
2962       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2963       output: config_devices_mak,
2964       depfile: config_devices_mak + '.d',
2965       capture: true,
2966       command: [minikconf,
2967                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2968                 config_devices_mak, '@DEPFILE@', '@INPUT@',
2969                 host_kconfig, accel_kconfig,
2970                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2971
2972     config_devices_data = configuration_data()
2973     config_devices = keyval.load(config_devices_mak)
2974     foreach k, v: config_devices
2975       config_devices_data.set(k, 1)
2976     endforeach
2977     config_devices_mak_list += config_devices_mak
2978     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2979                                                 configuration: config_devices_data)}
2980     config_target += config_devices
2981     config_all_devices += config_devices
2982   endif
2983   config_target_mak += {target: config_target}
2984 endforeach
2985 target_dirs = actual_target_dirs
2986
2987 # This configuration is used to build files that are shared by
2988 # multiple binaries, and then extracted out of the "common"
2989 # static_library target.
2990 #
2991 # We do not use all_sources()/all_dependencies(), because it would
2992 # build literally all source files, including devices only used by
2993 # targets that are not built for this compilation.  The CONFIG_ALL
2994 # pseudo symbol replaces it.
2995
2996 config_all += config_all_devices
2997 config_all += config_host
2998 config_all += config_all_disas
2999 config_all += {
3000   'CONFIG_XEN': xen.found(),
3001   'CONFIG_SYSTEM_ONLY': have_system,
3002   'CONFIG_USER_ONLY': have_user,
3003   'CONFIG_ALL': true,
3004 }
3005
3006 target_configs_h = []
3007 foreach target: target_dirs
3008   target_configs_h += config_target_h[target]
3009   target_configs_h += config_devices_h.get(target, [])
3010 endforeach
3011 genh += custom_target('config-poison.h',
3012                       input: [target_configs_h],
3013                       output: 'config-poison.h',
3014                       capture: true,
3015                       command: [find_program('scripts/make-config-poison.sh'),
3016                                 target_configs_h])
3017
3018 ##############
3019 # Submodules #
3020 ##############
3021
3022 capstone = not_found
3023 if not get_option('capstone').auto() or have_system or have_user
3024   capstone = dependency('capstone', version: '>=3.0.5',
3025                         method: 'pkg-config',
3026                         required: get_option('capstone'))
3027
3028   # Some versions of capstone have broken pkg-config file
3029   # that reports a wrong -I path, causing the #include to
3030   # fail later. If the system has such a broken version
3031   # do not use it.
3032   if capstone.found() and not cc.compiles('#include <capstone.h>',
3033                                           dependencies: [capstone])
3034     capstone = not_found
3035     if get_option('capstone').enabled()
3036       error('capstone requested, but it does not appear to work')
3037     endif
3038   endif
3039 endif
3040
3041 libvfio_user_dep = not_found
3042 if have_system and vfio_user_server_allowed
3043   libvfio_user_proj = subproject('libvfio-user', required: true)
3044   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3045 endif
3046
3047 fdt = not_found
3048 fdt_opt = get_option('fdt')
3049 if fdt_required.length() > 0 or fdt_opt == 'enabled'
3050   if fdt_opt == 'disabled'
3051     error('fdt disabled but required by targets ' + ', '.join(fdt_required))
3052   endif
3053
3054   if fdt_opt in ['enabled', 'auto', 'system']
3055     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3056     if fdt.found() and cc.links('''
3057        #include <libfdt.h>
3058        #include <libfdt_env.h>
3059        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3060          dependencies: fdt)
3061       fdt_opt = 'system'
3062     elif fdt_opt == 'system'
3063        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3064     else
3065       fdt_opt = 'internal'
3066       fdt = not_found
3067     endif
3068   endif
3069   if not fdt.found()
3070     assert(fdt_opt == 'internal')
3071     libfdt_proj = subproject('dtc', required: true,
3072                              default_options: ['tools=false',  'yaml=disabled',
3073                                                'python=disabled', 'default_library=static'])
3074     fdt = libfdt_proj.get_variable('libfdt_dep')
3075   endif
3076 else
3077   fdt_opt = 'disabled'
3078 endif
3079
3080 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3081 config_host_data.set('CONFIG_FDT', fdt.found())
3082 config_host_data.set('CONFIG_SLIRP', slirp.found())
3083
3084 #####################
3085 # Generated sources #
3086 #####################
3087
3088 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3089
3090 hxtool = find_program('scripts/hxtool')
3091 shaderinclude = find_program('scripts/shaderinclude.py')
3092 qapi_gen = find_program('scripts/qapi-gen.py')
3093 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3094                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3095                      meson.current_source_dir() / 'scripts/qapi/common.py',
3096                      meson.current_source_dir() / 'scripts/qapi/error.py',
3097                      meson.current_source_dir() / 'scripts/qapi/events.py',
3098                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3099                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3100                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3101                      meson.current_source_dir() / 'scripts/qapi/main.py',
3102                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3103                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3104                      meson.current_source_dir() / 'scripts/qapi/source.py',
3105                      meson.current_source_dir() / 'scripts/qapi/types.py',
3106                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3107                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3108 ]
3109
3110 tracetool = [
3111   python, files('scripts/tracetool.py'),
3112    '--backend=' + ','.join(get_option('trace_backends'))
3113 ]
3114 tracetool_depends = files(
3115   'scripts/tracetool/backend/log.py',
3116   'scripts/tracetool/backend/__init__.py',
3117   'scripts/tracetool/backend/dtrace.py',
3118   'scripts/tracetool/backend/ftrace.py',
3119   'scripts/tracetool/backend/simple.py',
3120   'scripts/tracetool/backend/syslog.py',
3121   'scripts/tracetool/backend/ust.py',
3122   'scripts/tracetool/format/ust_events_c.py',
3123   'scripts/tracetool/format/ust_events_h.py',
3124   'scripts/tracetool/format/__init__.py',
3125   'scripts/tracetool/format/d.py',
3126   'scripts/tracetool/format/simpletrace_stap.py',
3127   'scripts/tracetool/format/c.py',
3128   'scripts/tracetool/format/h.py',
3129   'scripts/tracetool/format/log_stap.py',
3130   'scripts/tracetool/format/stap.py',
3131   'scripts/tracetool/__init__.py',
3132   'scripts/tracetool/vcpu.py'
3133 )
3134
3135 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3136                     meson.current_source_dir(),
3137                     get_option('pkgversion'), meson.project_version()]
3138 qemu_version = custom_target('qemu-version.h',
3139                              output: 'qemu-version.h',
3140                              command: qemu_version_cmd,
3141                              capture: true,
3142                              build_by_default: true,
3143                              build_always_stale: true)
3144 genh += qemu_version
3145
3146 hxdep = []
3147 hx_headers = [
3148   ['qemu-options.hx', 'qemu-options.def'],
3149   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3150 ]
3151 if have_system
3152   hx_headers += [
3153     ['hmp-commands.hx', 'hmp-commands.h'],
3154     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3155   ]
3156 endif
3157 foreach d : hx_headers
3158   hxdep += custom_target(d[1],
3159                 input: files(d[0]),
3160                 output: d[1],
3161                 capture: true,
3162                 build_by_default: true, # to be removed when added to a target
3163                 command: [hxtool, '-h', '@INPUT0@'])
3164 endforeach
3165 genh += hxdep
3166
3167 ###################
3168 # Collect sources #
3169 ###################
3170
3171 authz_ss = ss.source_set()
3172 blockdev_ss = ss.source_set()
3173 block_ss = ss.source_set()
3174 chardev_ss = ss.source_set()
3175 common_ss = ss.source_set()
3176 crypto_ss = ss.source_set()
3177 hwcore_ss = ss.source_set()
3178 io_ss = ss.source_set()
3179 qmp_ss = ss.source_set()
3180 qom_ss = ss.source_set()
3181 system_ss = ss.source_set()
3182 specific_fuzz_ss = ss.source_set()
3183 specific_ss = ss.source_set()
3184 stub_ss = ss.source_set()
3185 trace_ss = ss.source_set()
3186 user_ss = ss.source_set()
3187 util_ss = ss.source_set()
3188
3189 # accel modules
3190 qtest_module_ss = ss.source_set()
3191 tcg_module_ss = ss.source_set()
3192
3193 modules = {}
3194 target_modules = {}
3195 hw_arch = {}
3196 target_arch = {}
3197 target_softmmu_arch = {}
3198 target_user_arch = {}
3199
3200 ###############
3201 # Trace files #
3202 ###############
3203
3204 # TODO: add each directory to the subdirs from its own meson.build, once
3205 # we have those
3206 trace_events_subdirs = [
3207   'crypto',
3208   'qapi',
3209   'qom',
3210   'monitor',
3211   'util',
3212   'gdbstub',
3213 ]
3214 if have_linux_user
3215   trace_events_subdirs += [ 'linux-user' ]
3216 endif
3217 if have_bsd_user
3218   trace_events_subdirs += [ 'bsd-user' ]
3219 endif
3220 if have_block
3221   trace_events_subdirs += [
3222     'authz',
3223     'block',
3224     'io',
3225     'nbd',
3226     'scsi',
3227   ]
3228 endif
3229 if have_system
3230   trace_events_subdirs += [
3231     'accel/kvm',
3232     'audio',
3233     'backends',
3234     'backends/tpm',
3235     'chardev',
3236     'ebpf',
3237     'hw/9pfs',
3238     'hw/acpi',
3239     'hw/adc',
3240     'hw/alpha',
3241     'hw/arm',
3242     'hw/audio',
3243     'hw/block',
3244     'hw/block/dataplane',
3245     'hw/char',
3246     'hw/display',
3247     'hw/dma',
3248     'hw/hyperv',
3249     'hw/i2c',
3250     'hw/i386',
3251     'hw/i386/xen',
3252     'hw/i386/kvm',
3253     'hw/ide',
3254     'hw/input',
3255     'hw/intc',
3256     'hw/isa',
3257     'hw/mem',
3258     'hw/mips',
3259     'hw/misc',
3260     'hw/misc/macio',
3261     'hw/net',
3262     'hw/net/can',
3263     'hw/nubus',
3264     'hw/nvme',
3265     'hw/nvram',
3266     'hw/pci',
3267     'hw/pci-host',
3268     'hw/ppc',
3269     'hw/rdma',
3270     'hw/rdma/vmw',
3271     'hw/rtc',
3272     'hw/s390x',
3273     'hw/scsi',
3274     'hw/sd',
3275     'hw/sh4',
3276     'hw/sparc',
3277     'hw/sparc64',
3278     'hw/ssi',
3279     'hw/timer',
3280     'hw/tpm',
3281     'hw/usb',
3282     'hw/vfio',
3283     'hw/virtio',
3284     'hw/watchdog',
3285     'hw/xen',
3286     'hw/gpio',
3287     'migration',
3288     'net',
3289     'softmmu',
3290     'ui',
3291     'hw/remote',
3292   ]
3293 endif
3294 if have_system or have_user
3295   trace_events_subdirs += [
3296     'accel/tcg',
3297     'hw/core',
3298     'target/arm',
3299     'target/arm/hvf',
3300     'target/hppa',
3301     'target/i386',
3302     'target/i386/kvm',
3303     'target/mips/tcg',
3304     'target/nios2',
3305     'target/ppc',
3306     'target/riscv',
3307     'target/s390x',
3308     'target/s390x/kvm',
3309     'target/sparc',
3310   ]
3311 endif
3312
3313 vhost_user = not_found
3314 if targetos == 'linux' and have_vhost_user
3315   libvhost_user = subproject('libvhost-user')
3316   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3317 endif
3318
3319 libvduse = not_found
3320 if have_libvduse
3321   libvduse_proj = subproject('libvduse')
3322   libvduse = libvduse_proj.get_variable('libvduse_dep')
3323 endif
3324
3325 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3326 # that is filled in by qapi/.
3327 subdir('qapi')
3328 subdir('qobject')
3329 subdir('stubs')
3330 subdir('trace')
3331 subdir('util')
3332 subdir('qom')
3333 subdir('authz')
3334 subdir('crypto')
3335 subdir('ui')
3336 subdir('hw')
3337 subdir('gdbstub')
3338
3339 if enable_modules
3340   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3341   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3342 endif
3343
3344 qom_ss = qom_ss.apply(config_host, strict: false)
3345 libqom = static_library('qom', qom_ss.sources() + genh,
3346                         dependencies: [qom_ss.dependencies()],
3347                         name_suffix: 'fa')
3348 qom = declare_dependency(link_whole: libqom)
3349
3350 event_loop_base = files('event-loop-base.c')
3351 event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3352                                  build_by_default: true)
3353 event_loop_base = declare_dependency(link_whole: event_loop_base,
3354                                      dependencies: [qom])
3355
3356 stub_ss = stub_ss.apply(config_all, strict: false)
3357
3358 util_ss.add_all(trace_ss)
3359 util_ss = util_ss.apply(config_all, strict: false)
3360 libqemuutil = static_library('qemuutil',
3361                              sources: util_ss.sources() + stub_ss.sources() + genh,
3362                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3363 qemuutil = declare_dependency(link_with: libqemuutil,
3364                               sources: genh + version_res,
3365                               dependencies: [event_loop_base])
3366
3367 if have_system or have_user
3368   decodetree = generator(find_program('scripts/decodetree.py'),
3369                          output: 'decode-@BASENAME@.c.inc',
3370                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3371   subdir('libdecnumber')
3372   subdir('target')
3373 endif
3374
3375 subdir('audio')
3376 subdir('io')
3377 subdir('chardev')
3378 subdir('fsdev')
3379 subdir('dump')
3380
3381 if have_block
3382   block_ss.add(files(
3383     'block.c',
3384     'blockjob.c',
3385     'job.c',
3386     'qemu-io-cmds.c',
3387   ))
3388   if config_host_data.get('CONFIG_REPLICATION')
3389     block_ss.add(files('replication.c'))
3390   endif
3391
3392   subdir('nbd')
3393   subdir('scsi')
3394   subdir('block')
3395
3396   blockdev_ss.add(files(
3397     'blockdev.c',
3398     'blockdev-nbd.c',
3399     'iothread.c',
3400     'job-qmp.c',
3401   ), gnutls)
3402
3403   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3404   # os-win32.c does not
3405   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3406   system_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3407 endif
3408
3409 common_ss.add(files('cpus-common.c'))
3410 specific_ss.add(files('cpu.c'))
3411
3412 subdir('softmmu')
3413
3414 # Work around a gcc bug/misfeature wherein constant propagation looks
3415 # through an alias:
3416 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3417 # to guess that a const variable is always zero.  Without lto, this is
3418 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3419 # without lto, not even the alias is required -- we simply use different
3420 # declarations in different compilation units.
3421 pagevary = files('page-vary-common.c')
3422 if get_option('b_lto')
3423   pagevary_flags = ['-fno-lto']
3424   if get_option('cfi')
3425     pagevary_flags += '-fno-sanitize=cfi-icall'
3426   endif
3427   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3428                             c_args: pagevary_flags)
3429   pagevary = declare_dependency(link_with: pagevary)
3430 endif
3431 common_ss.add(pagevary)
3432 specific_ss.add(files('page-vary.c'))
3433
3434 subdir('backends')
3435 subdir('disas')
3436 subdir('migration')
3437 subdir('monitor')
3438 subdir('net')
3439 subdir('replay')
3440 subdir('semihosting')
3441 subdir('stats')
3442 subdir('tcg')
3443 subdir('fpu')
3444 subdir('accel')
3445 subdir('plugins')
3446 subdir('ebpf')
3447
3448 common_user_inc = []
3449
3450 subdir('common-user')
3451 subdir('bsd-user')
3452 subdir('linux-user')
3453
3454 # needed for fuzzing binaries
3455 subdir('tests/qtest/libqos')
3456 subdir('tests/qtest/fuzz')
3457
3458 # accel modules
3459 tcg_real_module_ss = ss.source_set()
3460 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3461 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3462 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3463                                 'tcg': tcg_real_module_ss }}
3464
3465 ########################
3466 # Library dependencies #
3467 ########################
3468
3469 modinfo_collect = find_program('scripts/modinfo-collect.py')
3470 modinfo_generate = find_program('scripts/modinfo-generate.py')
3471 modinfo_files = []
3472
3473 block_mods = []
3474 softmmu_mods = []
3475 foreach d, list : modules
3476   if not (d == 'block' ? have_block : have_system)
3477     continue
3478   endif
3479
3480   foreach m, module_ss : list
3481     if enable_modules
3482       module_ss = module_ss.apply(config_all, strict: false)
3483       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3484                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3485       if d == 'block'
3486         block_mods += sl
3487       else
3488         softmmu_mods += sl
3489       endif
3490       if module_ss.sources() != []
3491         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3492         # input. Sources can be used multiple times but objects are
3493         # unique when it comes to lookup in compile_commands.json.
3494         # Depnds on a mesion version with
3495         # https://github.com/mesonbuild/meson/pull/8900
3496         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3497                                        output: d + '-' + m + '.modinfo',
3498                                        input: module_ss.sources() + genh,
3499                                        capture: true,
3500                                        command: [modinfo_collect, module_ss.sources()])
3501       endif
3502     else
3503       if d == 'block'
3504         block_ss.add_all(module_ss)
3505       else
3506         system_ss.add_all(module_ss)
3507       endif
3508     endif
3509   endforeach
3510 endforeach
3511
3512 foreach d, list : target_modules
3513   foreach m, module_ss : list
3514     if enable_modules
3515       foreach target : target_dirs
3516         if target.endswith('-softmmu')
3517           config_target = config_target_mak[target]
3518           config_target += config_host
3519           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3520           c_args = ['-DNEED_CPU_H',
3521                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3522                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3523           target_module_ss = module_ss.apply(config_target, strict: false)
3524           if target_module_ss.sources() != []
3525             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3526             sl = static_library(module_name,
3527                                 [genh, target_module_ss.sources()],
3528                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3529                                 include_directories: target_inc,
3530                                 c_args: c_args,
3531                                 pic: true)
3532             softmmu_mods += sl
3533             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3534             modinfo_files += custom_target(module_name + '.modinfo',
3535                                            output: module_name + '.modinfo',
3536                                            input: target_module_ss.sources() + genh,
3537                                            capture: true,
3538                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3539           endif
3540         endif
3541       endforeach
3542     else
3543       specific_ss.add_all(module_ss)
3544     endif
3545   endforeach
3546 endforeach
3547
3548 if enable_modules
3549   foreach target : target_dirs
3550     if target.endswith('-softmmu')
3551       config_target = config_target_mak[target]
3552       config_devices_mak = target + '-config-devices.mak'
3553       modinfo_src = custom_target('modinfo-' + target + '.c',
3554                                   output: 'modinfo-' + target + '.c',
3555                                   input: modinfo_files,
3556                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3557                                   capture: true)
3558
3559       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3560       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3561
3562       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3563       hw_arch[arch].add(modinfo_dep)
3564     endif
3565   endforeach
3566 endif
3567
3568 nm = find_program('nm')
3569 undefsym = find_program('scripts/undefsym.py')
3570 block_syms = custom_target('block.syms', output: 'block.syms',
3571                              input: [libqemuutil, block_mods],
3572                              capture: true,
3573                              command: [undefsym, nm, '@INPUT@'])
3574 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3575                              input: [libqemuutil, softmmu_mods],
3576                              capture: true,
3577                              command: [undefsym, nm, '@INPUT@'])
3578
3579 authz_ss = authz_ss.apply(config_host, strict: false)
3580 libauthz = static_library('authz', authz_ss.sources() + genh,
3581                           dependencies: [authz_ss.dependencies()],
3582                           name_suffix: 'fa',
3583                           build_by_default: false)
3584
3585 authz = declare_dependency(link_whole: libauthz,
3586                            dependencies: qom)
3587
3588 crypto_ss = crypto_ss.apply(config_host, strict: false)
3589 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3590                            dependencies: [crypto_ss.dependencies()],
3591                            name_suffix: 'fa',
3592                            build_by_default: false)
3593
3594 crypto = declare_dependency(link_whole: libcrypto,
3595                             dependencies: [authz, qom])
3596
3597 io_ss = io_ss.apply(config_host, strict: false)
3598 libio = static_library('io', io_ss.sources() + genh,
3599                        dependencies: [io_ss.dependencies()],
3600                        link_with: libqemuutil,
3601                        name_suffix: 'fa',
3602                        build_by_default: false)
3603
3604 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3605
3606 libmigration = static_library('migration', sources: migration_files + genh,
3607                               name_suffix: 'fa',
3608                               build_by_default: false)
3609 migration = declare_dependency(link_with: libmigration,
3610                                dependencies: [zlib, qom, io])
3611 system_ss.add(migration)
3612
3613 block_ss = block_ss.apply(config_host, strict: false)
3614 libblock = static_library('block', block_ss.sources() + genh,
3615                           dependencies: block_ss.dependencies(),
3616                           link_depends: block_syms,
3617                           name_suffix: 'fa',
3618                           build_by_default: false)
3619
3620 block = declare_dependency(link_whole: [libblock],
3621                            link_args: '@block.syms',
3622                            dependencies: [crypto, io])
3623
3624 blockdev_ss = blockdev_ss.apply(config_host, strict: false)
3625 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3626                              dependencies: blockdev_ss.dependencies(),
3627                              name_suffix: 'fa',
3628                              build_by_default: false)
3629
3630 blockdev = declare_dependency(link_whole: [libblockdev],
3631                               dependencies: [block, event_loop_base])
3632
3633 qmp_ss = qmp_ss.apply(config_host, strict: false)
3634 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3635                         dependencies: qmp_ss.dependencies(),
3636                         name_suffix: 'fa',
3637                         build_by_default: false)
3638
3639 qmp = declare_dependency(link_whole: [libqmp])
3640
3641 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3642                             name_suffix: 'fa',
3643                             dependencies: chardev_ss.dependencies(),
3644                             build_by_default: false)
3645
3646 chardev = declare_dependency(link_whole: libchardev)
3647
3648 hwcore_ss = hwcore_ss.apply(config_host, strict: false)
3649 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3650                            name_suffix: 'fa',
3651                            build_by_default: false)
3652 hwcore = declare_dependency(link_whole: libhwcore)
3653 common_ss.add(hwcore)
3654
3655 ###########
3656 # Targets #
3657 ###########
3658
3659 emulator_modules = []
3660 foreach m : block_mods + softmmu_mods
3661   emulator_modules += shared_module(m.name(),
3662                 build_by_default: true,
3663                 name_prefix: '',
3664                 link_whole: m,
3665                 install: true,
3666                 install_dir: qemu_moddir)
3667 endforeach
3668 if emulator_modules.length() > 0
3669   alias_target('modules', emulator_modules)
3670 endif
3671
3672 system_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3673 common_ss.add(qom, qemuutil)
3674
3675 common_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: [system_ss])
3676 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3677
3678 common_all = common_ss.apply(config_all, strict: false)
3679 common_all = static_library('common',
3680                             build_by_default: false,
3681                             sources: common_all.sources() + genh,
3682                             include_directories: common_user_inc,
3683                             implicit_include_directories: false,
3684                             dependencies: common_all.dependencies(),
3685                             name_suffix: 'fa')
3686
3687 feature_to_c = find_program('scripts/feature_to_c.sh')
3688
3689 if targetos == 'darwin'
3690   entitlement = find_program('scripts/entitlement.sh')
3691 endif
3692
3693 emulators = {}
3694 foreach target : target_dirs
3695   config_target = config_target_mak[target]
3696   target_name = config_target['TARGET_NAME']
3697   target_base_arch = config_target['TARGET_BASE_ARCH']
3698   arch_srcs = [config_target_h[target]]
3699   arch_deps = []
3700   c_args = ['-DNEED_CPU_H',
3701             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3702             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3703   link_args = emulator_link_args
3704
3705   config_target += config_host
3706   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3707   if targetos == 'linux'
3708     target_inc += include_directories('linux-headers', is_system: true)
3709   endif
3710   if target.endswith('-softmmu')
3711     target_type='system'
3712     t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3713     arch_srcs += t.sources()
3714     arch_deps += t.dependencies()
3715
3716     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3717     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3718     arch_srcs += hw.sources()
3719     arch_deps += hw.dependencies()
3720
3721     arch_srcs += config_devices_h[target]
3722     link_args += ['@block.syms', '@qemu.syms']
3723   else
3724     abi = config_target['TARGET_ABI_DIR']
3725     target_type='user'
3726     target_inc += common_user_inc
3727     if target_base_arch in target_user_arch
3728       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3729       arch_srcs += t.sources()
3730       arch_deps += t.dependencies()
3731     endif
3732     if 'CONFIG_LINUX_USER' in config_target
3733       base_dir = 'linux-user'
3734     endif
3735     if 'CONFIG_BSD_USER' in config_target
3736       base_dir = 'bsd-user'
3737       target_inc += include_directories('bsd-user/' / targetos)
3738       target_inc += include_directories('bsd-user/host/' / host_arch)
3739       dir = base_dir / abi
3740       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3741     endif
3742     target_inc += include_directories(
3743       base_dir,
3744       base_dir / abi,
3745     )
3746     if 'CONFIG_LINUX_USER' in config_target
3747       dir = base_dir / abi
3748       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3749       if config_target.has_key('TARGET_SYSTBL_ABI')
3750         arch_srcs += \
3751           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3752                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3753       endif
3754     endif
3755   endif
3756
3757   if 'TARGET_XML_FILES' in config_target
3758     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3759                                 output: target + '-gdbstub-xml.c',
3760                                 input: files(config_target['TARGET_XML_FILES'].split()),
3761                                 command: [feature_to_c, '@INPUT@'],
3762                                 capture: true)
3763     arch_srcs += gdbstub_xml
3764   endif
3765
3766   t = target_arch[target_base_arch].apply(config_target, strict: false)
3767   arch_srcs += t.sources()
3768   arch_deps += t.dependencies()
3769
3770   target_common = common_ss.apply(config_target, strict: false)
3771   objects = common_all.extract_objects(target_common.sources())
3772   deps = target_common.dependencies()
3773
3774   target_specific = specific_ss.apply(config_target, strict: false)
3775   arch_srcs += target_specific.sources()
3776   arch_deps += target_specific.dependencies()
3777
3778   lib = static_library('qemu-' + target,
3779                  sources: arch_srcs + genh,
3780                  dependencies: arch_deps,
3781                  objects: objects,
3782                  include_directories: target_inc,
3783                  c_args: c_args,
3784                  build_by_default: false,
3785                  name_suffix: 'fa')
3786
3787   if target.endswith('-softmmu')
3788     execs = [{
3789       'name': 'qemu-system-' + target_name,
3790       'win_subsystem': 'console',
3791       'sources': files('softmmu/main.c'),
3792       'dependencies': []
3793     }]
3794     if targetos == 'windows' and (sdl.found() or gtk.found())
3795       execs += [{
3796         'name': 'qemu-system-' + target_name + 'w',
3797         'win_subsystem': 'windows',
3798         'sources': files('softmmu/main.c'),
3799         'dependencies': []
3800       }]
3801     endif
3802     if get_option('fuzzing')
3803       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3804       execs += [{
3805         'name': 'qemu-fuzz-' + target_name,
3806         'win_subsystem': 'console',
3807         'sources': specific_fuzz.sources(),
3808         'dependencies': specific_fuzz.dependencies(),
3809       }]
3810     endif
3811   else
3812     execs = [{
3813       'name': 'qemu-' + target_name,
3814       'win_subsystem': 'console',
3815       'sources': [],
3816       'dependencies': []
3817     }]
3818   endif
3819   foreach exe: execs
3820     exe_name = exe['name']
3821     if targetos == 'darwin'
3822       exe_name += '-unsigned'
3823     endif
3824
3825     emulator = executable(exe_name, exe['sources'],
3826                install: true,
3827                c_args: c_args,
3828                dependencies: arch_deps + deps + exe['dependencies'],
3829                objects: lib.extract_all_objects(recursive: true),
3830                link_language: link_language,
3831                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3832                link_args: link_args,
3833                win_subsystem: exe['win_subsystem'])
3834
3835     if targetos == 'darwin'
3836       icon = 'pc-bios/qemu.rsrc'
3837       build_input = [emulator, files(icon)]
3838       install_input = [
3839         get_option('bindir') / exe_name,
3840         meson.current_source_dir() / icon
3841       ]
3842       if 'CONFIG_HVF' in config_target
3843         entitlements = 'accel/hvf/entitlements.plist'
3844         build_input += files(entitlements)
3845         install_input += meson.current_source_dir() / entitlements
3846       endif
3847
3848       emulators += {exe['name'] : custom_target(exe['name'],
3849                    input: build_input,
3850                    output: exe['name'],
3851                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3852       }
3853
3854       meson.add_install_script(entitlement, '--install',
3855                                get_option('bindir') / exe['name'],
3856                                install_input)
3857     else
3858       emulators += {exe['name']: emulator}
3859     endif
3860
3861     if stap.found()
3862       foreach stp: [
3863         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3864         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3865         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3866         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3867       ]
3868         custom_target(exe['name'] + stp['ext'],
3869                       input: trace_events_all,
3870                       output: exe['name'] + stp['ext'],
3871                       install: stp['install'],
3872                       install_dir: get_option('datadir') / 'systemtap/tapset',
3873                       command: [
3874                         tracetool, '--group=all', '--format=' + stp['fmt'],
3875                         '--binary=' + stp['bin'],
3876                         '--target-name=' + target_name,
3877                         '--target-type=' + target_type,
3878                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3879                         '@INPUT@', '@OUTPUT@'
3880                       ],
3881                       depend_files: tracetool_depends)
3882       endforeach
3883     endif
3884   endforeach
3885 endforeach
3886
3887 # Other build targets
3888
3889 if 'CONFIG_PLUGIN' in config_host
3890   install_headers('include/qemu/qemu-plugin.h')
3891 endif
3892
3893 subdir('qga')
3894
3895 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3896 # when we don't build tools or system
3897 if xkbcommon.found()
3898   # used for the update-keymaps target, so include rules even if !have_tools
3899   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3900                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3901 endif
3902
3903 if have_tools
3904   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3905              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3906   qemu_io = executable('qemu-io', files('qemu-io.c'),
3907              dependencies: [block, qemuutil], install: true)
3908   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3909                dependencies: [blockdev, qemuutil, gnutls, selinux],
3910                install: true)
3911
3912   subdir('storage-daemon')
3913   subdir('contrib/rdmacm-mux')
3914   subdir('contrib/elf2dmp')
3915
3916   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3917              dependencies: qemuutil,
3918              install: true)
3919
3920   if have_vhost_user
3921     subdir('contrib/vhost-user-blk')
3922     subdir('contrib/vhost-user-gpu')
3923     subdir('contrib/vhost-user-input')
3924     subdir('contrib/vhost-user-scsi')
3925   endif
3926
3927   if targetos == 'linux'
3928     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3929                dependencies: [qemuutil, libcap_ng],
3930                install: true,
3931                install_dir: get_option('libexecdir'))
3932
3933     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3934                dependencies: [authz, crypto, io, qom, qemuutil,
3935                               libcap_ng, mpathpersist],
3936                install: true)
3937   endif
3938
3939   if have_ivshmem
3940     subdir('contrib/ivshmem-client')
3941     subdir('contrib/ivshmem-server')
3942   endif
3943 endif
3944
3945 subdir('scripts')
3946 subdir('tools')
3947 subdir('pc-bios')
3948 subdir('docs')
3949 subdir('tests')
3950 if gtk.found()
3951   subdir('po')
3952 endif
3953
3954 if host_machine.system() == 'windows'
3955   nsis_cmd = [
3956     find_program('scripts/nsis.py'),
3957     '@OUTPUT@',
3958     get_option('prefix'),
3959     meson.current_source_dir(),
3960     glib_pc.get_variable('bindir'),
3961     host_machine.cpu(),
3962     '--',
3963     '-DDISPLAYVERSION=' + meson.project_version(),
3964   ]
3965   if build_docs
3966     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3967   endif
3968   if gtk.found()
3969     nsis_cmd += '-DCONFIG_GTK=y'
3970   endif
3971
3972   nsis = custom_target('nsis',
3973                        output: 'qemu-setup-' + meson.project_version() + '.exe',
3974                        input: files('qemu.nsi'),
3975                        build_always_stale: true,
3976                        command: nsis_cmd + ['@INPUT@'])
3977   alias_target('installer', nsis)
3978 endif
3979
3980 #########################
3981 # Configuration summary #
3982 #########################
3983
3984 # Build environment
3985 summary_info = {}
3986 summary_info += {'Build directory':   meson.current_build_dir()}
3987 summary_info += {'Source path':       meson.current_source_dir()}
3988 summary_info += {'Download dependencies': get_option('wrap_mode') != 'nodownload'}
3989 summary(summary_info, bool_yn: true, section: 'Build environment')
3990
3991 # Directories
3992 summary_info += {'Install prefix':    get_option('prefix')}
3993 summary_info += {'BIOS directory':    qemu_datadir}
3994 pathsep = targetos == 'windows' ? ';' : ':'
3995 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
3996 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
3997 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
3998 summary_info += {'module directory':  qemu_moddir}
3999 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
4000 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
4001 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
4002 if targetos != 'windows'
4003   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
4004   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
4005 else
4006   summary_info += {'local state directory': 'queried at runtime'}
4007 endif
4008 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4009 summary(summary_info, bool_yn: true, section: 'Directories')
4010
4011 # Host binaries
4012 summary_info = {}
4013 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4014 summary_info += {'sphinx-build':      sphinx_build}
4015 if config_host.has_key('HAVE_GDB_BIN')
4016   summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
4017 endif
4018 summary_info += {'iasl':              iasl}
4019 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4020 if targetos == 'windows' and have_ga
4021   summary_info += {'wixl':            wixl}
4022 endif
4023 if slirp.found() and have_system
4024   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4025 endif
4026 summary(summary_info, bool_yn: true, section: 'Host binaries')
4027
4028 # Configurable features
4029 summary_info = {}
4030 summary_info += {'Documentation':     build_docs}
4031 summary_info += {'system-mode emulation': have_system}
4032 summary_info += {'user-mode emulation': have_user}
4033 summary_info += {'block layer':       have_block}
4034 summary_info += {'Install blobs':     get_option('install_blobs')}
4035 summary_info += {'module support':    enable_modules}
4036 if enable_modules
4037   summary_info += {'alternative module path': get_option('module_upgrades')}
4038 endif
4039 summary_info += {'fuzzing support':   get_option('fuzzing')}
4040 if have_system
4041   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4042 endif
4043 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4044 if 'simple' in get_option('trace_backends')
4045   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4046 endif
4047 summary_info += {'D-Bus display':     dbus_display}
4048 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4049 summary_info += {'vhost-kernel support': have_vhost_kernel}
4050 summary_info += {'vhost-net support': have_vhost_net}
4051 summary_info += {'vhost-user support': have_vhost_user}
4052 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4053 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4054 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4055 summary_info += {'build guest agent': have_ga}
4056 summary(summary_info, bool_yn: true, section: 'Configurable features')
4057
4058 # Compilation information
4059 summary_info = {}
4060 summary_info += {'host CPU':          cpu}
4061 summary_info += {'host endianness':   build_machine.endian()}
4062 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4063 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4064 if link_language == 'cpp'
4065   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4066 else
4067   summary_info += {'C++ compiler':      false}
4068 endif
4069 if targetos == 'darwin'
4070   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4071 endif
4072 option_cflags = (get_option('debug') ? ['-g'] : [])
4073 if get_option('optimization') != 'plain'
4074   option_cflags += ['-O' + get_option('optimization')]
4075 endif
4076 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4077 if link_language == 'cpp'
4078   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4079 endif
4080 if targetos == 'darwin'
4081   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4082 endif
4083 link_args = get_option(link_language + '_link_args')
4084 if link_args.length() > 0
4085   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4086 endif
4087 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4088 if 'cpp' in all_languages
4089   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4090 endif
4091 if 'objc' in all_languages
4092   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4093 endif
4094 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4095 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4096 summary_info += {'PIE':               get_option('b_pie')}
4097 summary_info += {'static build':      get_option('prefer_static')}
4098 summary_info += {'malloc trim support': has_malloc_trim}
4099 summary_info += {'membarrier':        have_membarrier}
4100 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4101 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4102 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4103 summary_info += {'memory allocator':  get_option('malloc')}
4104 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4105 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4106 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4107 if get_option('gprof')
4108   gprof_info = 'YES (deprecated)'
4109 else
4110   gprof_info = get_option('gprof')
4111 endif
4112 summary_info += {'gprof':             gprof_info}
4113 summary_info += {'gcov':              get_option('b_coverage')}
4114 summary_info += {'thread sanitizer':  get_option('tsan')}
4115 summary_info += {'CFI support':       get_option('cfi')}
4116 if get_option('cfi')
4117   summary_info += {'CFI debug support': get_option('cfi_debug')}
4118 endif
4119 summary_info += {'strip binaries':    get_option('strip')}
4120 summary_info += {'sparse':            sparse}
4121 summary_info += {'mingw32 support':   targetos == 'windows'}
4122 summary(summary_info, bool_yn: true, section: 'Compilation')
4123
4124 # snarf the cross-compilation information for tests
4125 summary_info = {}
4126 have_cross = false
4127 foreach target: target_dirs
4128   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4129   if fs.exists(tcg_mak)
4130     config_cross_tcg = keyval.load(tcg_mak)
4131     if 'CC' in config_cross_tcg
4132       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4133       have_cross = true
4134     endif
4135   endif
4136 endforeach
4137 if have_cross
4138   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4139 endif
4140
4141 # Targets and accelerators
4142 summary_info = {}
4143 if have_system
4144   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4145   summary_info += {'HAX support':       config_all.has_key('CONFIG_HAX')}
4146   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4147   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4148   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4149   summary_info += {'Xen support':       xen.found()}
4150   if xen.found()
4151     summary_info += {'xen ctrl version':  xen.version()}
4152   endif
4153   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4154 endif
4155 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4156 if config_all.has_key('CONFIG_TCG')
4157   if get_option('tcg_interpreter')
4158     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4159   else
4160     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4161   endif
4162   summary_info += {'TCG plugins': config_host.has_key('CONFIG_PLUGIN')}
4163   summary_info += {'TCG debug enabled': config_host.has_key('CONFIG_DEBUG_TCG')}
4164 endif
4165 summary_info += {'target list':       ' '.join(target_dirs)}
4166 if have_system
4167   summary_info += {'default devices':   get_option('default_devices')}
4168   summary_info += {'out of process emulation': multiprocess_allowed}
4169   summary_info += {'vfio-user server': vfio_user_server_allowed}
4170 endif
4171 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4172
4173 # Block layer
4174 summary_info = {}
4175 summary_info += {'coroutine backend': coroutine_backend}
4176 summary_info += {'coroutine pool':    have_coroutine_pool}
4177 if have_block
4178   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4179   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4180   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4181   summary_info += {'VirtFS (9P) support':    have_virtfs}
4182   summary_info += {'VirtFS (9P) Proxy Helper support': have_virtfs_proxy_helper}
4183   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4184   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4185   summary_info += {'bochs support':     get_option('bochs').allowed()}
4186   summary_info += {'cloop support':     get_option('cloop').allowed()}
4187   summary_info += {'dmg support':       get_option('dmg').allowed()}
4188   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4189   summary_info += {'vdi support':       get_option('vdi').allowed()}
4190   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4191   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4192   summary_info += {'vpc support':       get_option('vpc').allowed()}
4193   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4194   summary_info += {'qed support':       get_option('qed').allowed()}
4195   summary_info += {'parallels support': get_option('parallels').allowed()}
4196   summary_info += {'FUSE exports':      fuse}
4197   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4198 endif
4199 summary(summary_info, bool_yn: true, section: 'Block layer support')
4200
4201 # Crypto
4202 summary_info = {}
4203 summary_info += {'TLS priority':      get_option('tls_priority')}
4204 summary_info += {'GNUTLS support':    gnutls}
4205 if gnutls.found()
4206   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4207 endif
4208 summary_info += {'libgcrypt':         gcrypt}
4209 summary_info += {'nettle':            nettle}
4210 if nettle.found()
4211    summary_info += {'  XTS':             xts != 'private'}
4212 endif
4213 summary_info += {'AF_ALG support':    have_afalg}
4214 summary_info += {'rng-none':          get_option('rng_none')}
4215 summary_info += {'Linux keyring':     have_keyring}
4216 summary(summary_info, bool_yn: true, section: 'Crypto')
4217
4218 # UI
4219 summary_info = {}
4220 if targetos == 'darwin'
4221   summary_info += {'Cocoa support':           cocoa}
4222 endif
4223 summary_info += {'SDL support':       sdl}
4224 summary_info += {'SDL image support': sdl_image}
4225 summary_info += {'GTK support':       gtk}
4226 summary_info += {'pixman':            pixman}
4227 summary_info += {'VTE support':       vte}
4228 summary_info += {'PNG support':       png}
4229 summary_info += {'VNC support':       vnc}
4230 if vnc.found()
4231   summary_info += {'VNC SASL support':  sasl}
4232   summary_info += {'VNC JPEG support':  jpeg}
4233 endif
4234 summary_info += {'spice protocol support': spice_protocol}
4235 if spice_protocol.found()
4236   summary_info += {'  spice server support': spice}
4237 endif
4238 summary_info += {'curses support':    curses}
4239 summary_info += {'brlapi support':    brlapi}
4240 summary(summary_info, bool_yn: true, section: 'User interface')
4241
4242 # Audio backends
4243 summary_info = {}
4244 if targetos not in ['darwin', 'haiku', 'windows']
4245   summary_info += {'OSS support':     oss}
4246   summary_info += {'sndio support':   sndio}
4247 elif targetos == 'darwin'
4248   summary_info += {'CoreAudio support': coreaudio}
4249 elif targetos == 'windows'
4250   summary_info += {'DirectSound support': dsound}
4251 endif
4252 if targetos == 'linux'
4253   summary_info += {'ALSA support':    alsa}
4254   summary_info += {'PulseAudio support': pulse}
4255 endif
4256 summary_info += {'Pipewire support':  pipewire}
4257 summary_info += {'JACK support':      jack}
4258 summary(summary_info, bool_yn: true, section: 'Audio backends')
4259
4260 # Network backends
4261 summary_info = {}
4262 if targetos == 'darwin'
4263   summary_info += {'vmnet.framework support': vmnet}
4264 endif
4265 summary_info += {'slirp support':     slirp}
4266 summary_info += {'vde support':       vde}
4267 summary_info += {'netmap support':    have_netmap}
4268 summary_info += {'l2tpv3 support':    have_l2tpv3}
4269 summary(summary_info, bool_yn: true, section: 'Network backends')
4270
4271 # Libraries
4272 summary_info = {}
4273 summary_info += {'libtasn1':          tasn1}
4274 summary_info += {'PAM':               pam}
4275 summary_info += {'iconv support':     iconv}
4276 summary_info += {'virgl support':     virgl}
4277 summary_info += {'blkio support':     blkio}
4278 summary_info += {'curl support':      curl}
4279 summary_info += {'Multipath support': mpathpersist}
4280 summary_info += {'Linux AIO support': libaio}
4281 summary_info += {'Linux io_uring support': linux_io_uring}
4282 summary_info += {'ATTR/XATTR support': libattr}
4283 summary_info += {'RDMA support':      rdma}
4284 summary_info += {'PVRDMA support':    have_pvrdma}
4285 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4286 summary_info += {'libcap-ng support': libcap_ng}
4287 summary_info += {'bpf support':       libbpf}
4288 summary_info += {'rbd support':       rbd}
4289 summary_info += {'smartcard support': cacard}
4290 summary_info += {'U2F support':       u2f}
4291 summary_info += {'libusb':            libusb}
4292 summary_info += {'usb net redir':     usbredir}
4293 summary_info += {'OpenGL support (epoxy)': opengl}
4294 summary_info += {'GBM':               gbm}
4295 summary_info += {'libiscsi support':  libiscsi}
4296 summary_info += {'libnfs support':    libnfs}
4297 if targetos == 'windows'
4298   if have_ga
4299     summary_info += {'QGA VSS support':   have_qga_vss}
4300   endif
4301 endif
4302 summary_info += {'seccomp support':   seccomp}
4303 summary_info += {'GlusterFS support': glusterfs}
4304 summary_info += {'TPM support':       have_tpm}
4305 summary_info += {'libssh support':    libssh}
4306 summary_info += {'lzo support':       lzo}
4307 summary_info += {'snappy support':    snappy}
4308 summary_info += {'bzip2 support':     libbzip2}
4309 summary_info += {'lzfse support':     liblzfse}
4310 summary_info += {'zstd support':      zstd}
4311 summary_info += {'NUMA host support': numa}
4312 summary_info += {'capstone':          capstone}
4313 summary_info += {'libpmem support':   libpmem}
4314 summary_info += {'libdaxctl support': libdaxctl}
4315 summary_info += {'libudev':           libudev}
4316 # Dummy dependency, keep .found()
4317 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4318 summary_info += {'selinux':           selinux}
4319 summary_info += {'libdw':             libdw}
4320 summary(summary_info, bool_yn: true, section: 'Dependencies')
4321
4322 if not supported_cpus.contains(cpu)
4323   message()
4324   warning('SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!')
4325   message()
4326   message('CPU host architecture ' + cpu + ' support is not currently maintained.')
4327   message('The QEMU project intends to remove support for this host CPU in')
4328   message('a future release if nobody volunteers to maintain it and to')
4329   message('provide a build host for our continuous integration setup.')
4330   message('configure has succeeded and you can continue to build, but')
4331   message('if you care about QEMU on this platform you should contact')
4332   message('us upstream at qemu-devel@nongnu.org.')
4333 endif
4334
4335 if not supported_oses.contains(targetos)
4336   message()
4337   warning('WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!')
4338   message()
4339   message('Host OS ' + targetos + 'support is not currently maintained.')
4340   message('The QEMU project intends to remove support for this host OS in')
4341   message('a future release if nobody volunteers to maintain it and to')
4342   message('provide a build host for our continuous integration setup.')
4343   message('configure has succeeded and you can continue to build, but')
4344   message('if you care about QEMU on this platform you should contact')
4345   message('us upstream at qemu-devel@nongnu.org.')
4346 endif