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'],
 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 lttng = not_found
 842 if 'ust' in get_option('trace_backends')
 843   lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
 844                      method: 'pkg-config')
 845 endif
 846 pixman = not_found
 847 if have_system or have_tools
 848   pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
 849                       method: 'pkg-config')
 850 endif
 851 zlib = dependency('zlib', required: true)
 852
 853 libaio = not_found
 854 if not get_option('linux_aio').auto() or have_block
 855   libaio = cc.find_library('aio', has_headers: ['libaio.h'],
 856                            required: get_option('linux_aio'))
 857 endif
 858
 859 linux_io_uring_test = '''
 860   #include <liburing.h>
 861   #include <linux/errqueue.h>
 862
 863   int main(void) { return 0; }'''
 864
 865 linux_io_uring = not_found
 866 if not get_option('linux_io_uring').auto() or have_block
 867   linux_io_uring = dependency('liburing', version: '>=0.3',
 868                               required: get_option('linux_io_uring'),
 869                               method: 'pkg-config')
 870   if not cc.links(linux_io_uring_test)
 871     linux_io_uring = not_found
 872   endif
 873 endif
 874
 875 libnfs = not_found
 876 if not get_option('libnfs').auto() or have_block
 877   libnfs = dependency('libnfs', version: '>=1.9.3',
 878                       required: get_option('libnfs'),
 879                       method: 'pkg-config')
 880 endif
 881
 882 libattr_test = '''
 883   #include <stddef.h>
 884   #include <sys/types.h>
 885   #ifdef CONFIG_LIBATTR
 886   #include <attr/xattr.h>
 887   #else
 888   #include <sys/xattr.h>
 889   #endif
 890   int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
 891
 892 libattr = not_found
 893 have_old_libattr = false
 894 if get_option('attr').allowed()
 895   if cc.links(libattr_test)
 896     libattr = declare_dependency()
 897   else
 898     libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
 899                               required: get_option('attr'))
 900     if libattr.found() and not \
 901       cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
 902       libattr = not_found
 903       if get_option('attr').enabled()
 904         error('could not link libattr')
 905       else
 906         warning('could not link libattr, disabling')
 907       endif
 908     else
 909       have_old_libattr = libattr.found()
 910     endif
 911   endif
 912 endif
 913
 914 cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
 915                    required: get_option('cocoa'))
 916
 917 vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
 918 if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
 919                                               'VMNET_BRIDGED_MODE',
 920                                               dependencies: vmnet)
 921   vmnet = not_found
 922   if get_option('vmnet').enabled()
 923     error('vmnet.framework API is outdated')
 924   else
 925     warning('vmnet.framework API is outdated, disabling')
 926   endif
 927 endif
 928
 929 seccomp = not_found
 930 seccomp_has_sysrawrc = false
 931 if not get_option('seccomp').auto() or have_system or have_tools
 932   seccomp = dependency('libseccomp', version: '>=2.3.0',
 933                        required: get_option('seccomp'),
 934                        method: 'pkg-config')
 935   if seccomp.found()
 936     seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
 937                                                 'SCMP_FLTATR_API_SYSRAWRC',
 938                                                 dependencies: seccomp)
 939   endif
 940 endif
 941
 942 libcap_ng = not_found
 943 if not get_option('cap_ng').auto() or have_system or have_tools
 944   libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
 945                               required: get_option('cap_ng'))
 946 endif
 947 if libcap_ng.found() and not cc.links('''
 948    #include <cap-ng.h>
 949    int main(void)
 950    {
 951      capng_capability_to_name(CAPNG_EFFECTIVE);
 952      return 0;
 953    }''', dependencies: libcap_ng)
 954   libcap_ng = not_found
 955   if get_option('cap_ng').enabled()
 956     error('could not link libcap-ng')
 957   else
 958     warning('could not link libcap-ng, disabling')
 959   endif
 960 endif
 961
 962 if get_option('xkbcommon').auto() and not have_system and not have_tools
 963   xkbcommon = not_found
 964 else
 965   xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
 966                          method: 'pkg-config')
 967 endif
 968
 969 slirp = not_found
 970 if not get_option('slirp').auto() or have_system
 971   slirp = dependency('slirp', required: get_option('slirp'),
 972                      method: 'pkg-config')
 973   # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
 974   # it passes function pointers within libslirp as callbacks for timers.
 975   # When using a system-wide shared libslirp, the type information for the
 976   # callback is missing and the timer call produces a false positive with CFI.
 977   # Do not use the "version" keyword argument to produce a better error.
 978   # with control-flow integrity.
 979   if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
 980     if get_option('slirp').enabled()
 981       error('Control-Flow Integrity requires libslirp 4.7.')
 982     else
 983       warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
 984       slirp = not_found
 985     endif
 986   endif
 987 endif
 988
 989 vde = not_found
 990 if not get_option('vde').auto() or have_system or have_tools
 991   vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
 992                            required: get_option('vde'))
 993 endif
 994 if vde.found() and not cc.links('''
 995    #include <libvdeplug.h>
 996    int main(void)
 997    {
 998      struct vde_open_args a = {0, 0, 0};
 999      char s[] = "";
1000      vde_open(s, s, &a);
1001      return 0;
1002    }''', dependencies: vde)
1003   vde = not_found
1004   if get_option('cap_ng').enabled()
1005     error('could not link libvdeplug')
1006   else
1007     warning('could not link libvdeplug, disabling')
1008   endif
1009 endif
1010
1011 pulse = not_found
1012 if not get_option('pa').auto() or (targetos == 'linux' and have_system)
1013   pulse = dependency('libpulse', required: get_option('pa'),
1014                      method: 'pkg-config')
1015 endif
1016 alsa = not_found
1017 if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
1018   alsa = dependency('alsa', required: get_option('alsa'),
1019                     method: 'pkg-config')
1020 endif
1021 jack = not_found
1022 if not get_option('jack').auto() or have_system
1023   jack = dependency('jack', required: get_option('jack'),
1024                     method: 'pkg-config')
1025 endif
1026 pipewire = not_found
1027 if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
1028   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
1029                     required: get_option('pipewire'),
1030                     method: 'pkg-config')
1031 endif
1032 sndio = not_found
1033 if not get_option('sndio').auto() or have_system
1034   sndio = dependency('sndio', required: get_option('sndio'),
1035                     method: 'pkg-config')
1036 endif
1037
1038 spice_protocol = not_found
1039 if not get_option('spice_protocol').auto() or have_system
1040   spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
1041                               required: get_option('spice_protocol'),
1042                               method: 'pkg-config')
1043 endif
1044 spice = not_found
1045 if not get_option('spice').auto() or have_system
1046   spice = dependency('spice-server', version: '>=0.14.0',
1047                      required: get_option('spice'),
1048                      method: 'pkg-config')
1049 endif
1050 spice_headers = spice.partial_dependency(compile_args: true, includes: true)
1051
1052 rt = cc.find_library('rt', required: false)
1053
1054 libiscsi = not_found
1055 if not get_option('libiscsi').auto() or have_block
1056   libiscsi = dependency('libiscsi', version: '>=1.9.0',
1057                          required: get_option('libiscsi'),
1058                          method: 'pkg-config')
1059 endif
1060 zstd = not_found
1061 if not get_option('zstd').auto() or have_block
1062   zstd = dependency('libzstd', version: '>=1.4.0',
1063                     required: get_option('zstd'),
1064                     method: 'pkg-config')
1065 endif
1066 virgl = not_found
1067
1068 have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
1069 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
1070   virgl = dependency('virglrenderer',
1071                      method: 'pkg-config',
1072                      required: get_option('virglrenderer'))
1073 endif
1074 blkio = not_found
1075 if not get_option('blkio').auto() or have_block
1076   blkio = dependency('blkio',
1077                      method: 'pkg-config',
1078                      required: get_option('blkio'))
1079 endif
1080 curl = not_found
1081 if not get_option('curl').auto() or have_block
1082   curl = dependency('libcurl', version: '>=7.29.0',
1083                     method: 'pkg-config',
1084                     required: get_option('curl'))
1085 endif
1086 libudev = not_found
1087 if targetos == 'linux' and (have_system or have_tools)
1088   libudev = dependency('libudev',
1089                        method: 'pkg-config',
1090                        required: get_option('libudev'))
1091 endif
1092
1093 mpathlibs = [libudev]
1094 mpathpersist = not_found
1095 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1096   mpath_test_source = '''
1097     #include <libudev.h>
1098     #include <mpath_persist.h>
1099     unsigned mpath_mx_alloc_len = 1024;
1100     int logsink;
1101     static struct config *multipath_conf;
1102     extern struct udev *udev;
1103     extern struct config *get_multipath_config(void);
1104     extern void put_multipath_config(struct config *conf);
1105     struct udev *udev;
1106     struct config *get_multipath_config(void) { return multipath_conf; }
1107     void put_multipath_config(struct config *conf) { }
1108     int main(void) {
1109         udev = udev_new();
1110         multipath_conf = mpath_lib_init();
1111         return 0;
1112     }'''
1113   libmpathpersist = cc.find_library('mpathpersist',
1114                                     required: get_option('mpath'))
1115   if libmpathpersist.found()
1116     mpathlibs += libmpathpersist
1117     if get_option('prefer_static')
1118       mpathlibs += cc.find_library('devmapper',
1119                                      required: get_option('mpath'))
1120     endif
1121     mpathlibs += cc.find_library('multipath',
1122                                  required: get_option('mpath'))
1123     foreach lib: mpathlibs
1124       if not lib.found()
1125         mpathlibs = []
1126         break
1127       endif
1128     endforeach
1129     if mpathlibs.length() == 0
1130       msg = 'Dependencies missing for libmpathpersist'
1131     elif cc.links(mpath_test_source, dependencies: mpathlibs)
1132       mpathpersist = declare_dependency(dependencies: mpathlibs)
1133     else
1134       msg = 'Cannot detect libmpathpersist API'
1135     endif
1136     if not mpathpersist.found()
1137       if get_option('mpath').enabled()
1138         error(msg)
1139       else
1140         warning(msg + ', disabling')
1141       endif
1142     endif
1143   endif
1144 endif
1145
1146 iconv = not_found
1147 curses = not_found
1148 if have_system and get_option('curses').allowed()
1149   curses_test = '''
1150     #if defined(__APPLE__) || defined(__OpenBSD__)
1151     #define _XOPEN_SOURCE_EXTENDED 1
1152     #endif
1153     #include <locale.h>
1154     #include <curses.h>
1155     #include <wchar.h>
1156     int main(void) {
1157       wchar_t wch = L'w';
1158       setlocale(LC_ALL, "");
1159       resize_term(0, 0);
1160       addwstr(L"wide chars\n");
1161       addnwstr(&wch, 1);
1162       add_wch(WACS_DEGREE);
1163       return 0;
1164     }'''
1165
1166   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1167   curses = dependency(curses_dep_list,
1168                       required: false,
1169                       method: 'pkg-config')
1170   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1171   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1172   if curses.found()
1173     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1174       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1175                                   version: curses.version())
1176     else
1177       msg = 'curses package not usable'
1178       curses = not_found
1179     endif
1180   endif
1181   if not curses.found()
1182     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1183     if targetos != 'windows' and not has_curses_h
1184       message('Trying with /usr/include/ncursesw')
1185       curses_compile_args += ['-I/usr/include/ncursesw']
1186       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1187     endif
1188     if has_curses_h
1189       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1190       foreach curses_libname : curses_libname_list
1191         libcurses = cc.find_library(curses_libname,
1192                                     required: false)
1193         if libcurses.found()
1194           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1195             curses = declare_dependency(compile_args: curses_compile_args,
1196                                         dependencies: [libcurses])
1197             break
1198           else
1199             msg = 'curses library not usable'
1200           endif
1201         endif
1202       endforeach
1203     endif
1204   endif
1205   if get_option('iconv').allowed()
1206     foreach link_args : [ ['-liconv'], [] ]
1207       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1208       # We need to use libiconv if available because mixing libiconv's headers with
1209       # the system libc does not work.
1210       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1211       # included in the command line and libiconv will not be found.
1212       if cc.links('''
1213         #include <iconv.h>
1214         int main(void) {
1215           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1216           return conv != (iconv_t) -1;
1217         }''', args: link_args, dependencies: glib)
1218         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1219         break
1220       endif
1221     endforeach
1222   endif
1223   if curses.found() and not iconv.found()
1224     if get_option('iconv').enabled()
1225       error('iconv not available')
1226     endif
1227     msg = 'iconv required for curses UI but not available'
1228     curses = not_found
1229   endif
1230   if not curses.found() and msg != ''
1231     if get_option('curses').enabled()
1232       error(msg)
1233     else
1234       warning(msg + ', disabling')
1235     endif
1236   endif
1237 endif
1238
1239 brlapi = not_found
1240 if not get_option('brlapi').auto() or have_system
1241   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1242                          required: get_option('brlapi'))
1243   if brlapi.found() and not cc.links('''
1244      #include <brlapi.h>
1245      #include <stddef.h>
1246      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1247     brlapi = not_found
1248     if get_option('brlapi').enabled()
1249       error('could not link brlapi')
1250     else
1251       warning('could not link brlapi, disabling')
1252     endif
1253   endif
1254 endif
1255
1256 sdl = not_found
1257 if not get_option('sdl').auto() or have_system
1258   sdl = dependency('sdl2', required: get_option('sdl'))
1259   sdl_image = not_found
1260 endif
1261 if sdl.found()
1262   # Some versions of SDL have problems with -Wundef
1263   if not cc.compiles('''
1264                      #include <SDL.h>
1265                      #include <SDL_syswm.h>
1266                      int main(int argc, char *argv[]) { return 0; }
1267                      ''', dependencies: sdl, args: '-Werror=undef')
1268     sdl = declare_dependency(compile_args: '-Wno-undef',
1269                              dependencies: sdl,
1270                              version: sdl.version())
1271   endif
1272   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1273                          method: 'pkg-config')
1274 else
1275   if get_option('sdl_image').enabled()
1276     error('sdl-image required, but SDL was @0@'.format(
1277           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1278   endif
1279   sdl_image = not_found
1280 endif
1281
1282 rbd = not_found
1283 if not get_option('rbd').auto() or have_block
1284   librados = cc.find_library('rados', required: get_option('rbd'))
1285   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1286                            required: get_option('rbd'))
1287   if librados.found() and librbd.found()
1288     if cc.links('''
1289       #include <stdio.h>
1290       #include <rbd/librbd.h>
1291       int main(void) {
1292         rados_t cluster;
1293         rados_create(&cluster, NULL);
1294         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1295         #error
1296         #endif
1297         return 0;
1298       }''', dependencies: [librbd, librados])
1299       rbd = declare_dependency(dependencies: [librbd, librados])
1300     elif get_option('rbd').enabled()
1301       error('librbd >= 1.12.0 required')
1302     else
1303       warning('librbd >= 1.12.0 not found, disabling')
1304     endif
1305   endif
1306 endif
1307
1308 glusterfs = not_found
1309 glusterfs_ftruncate_has_stat = false
1310 glusterfs_iocb_has_stat = false
1311 if not get_option('glusterfs').auto() or have_block
1312   glusterfs = dependency('glusterfs-api', version: '>=3',
1313                          required: get_option('glusterfs'),
1314                          method: 'pkg-config')
1315   if glusterfs.found()
1316     glusterfs_ftruncate_has_stat = cc.links('''
1317       #include <glusterfs/api/glfs.h>
1318
1319       int
1320       main(void)
1321       {
1322           /* new glfs_ftruncate() passes two additional args */
1323           return glfs_ftruncate(NULL, 0, NULL, NULL);
1324       }
1325     ''', dependencies: glusterfs)
1326     glusterfs_iocb_has_stat = cc.links('''
1327       #include <glusterfs/api/glfs.h>
1328
1329       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1330       static void
1331       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1332       {}
1333
1334       int
1335       main(void)
1336       {
1337           glfs_io_cbk iocb = &glusterfs_iocb;
1338           iocb(NULL, 0 , NULL, NULL, NULL);
1339           return 0;
1340       }
1341     ''', dependencies: glusterfs)
1342   endif
1343 endif
1344
1345 libssh = not_found
1346 if not get_option('libssh').auto() or have_block
1347   libssh = dependency('libssh', version: '>=0.8.7',
1348                     method: 'pkg-config',
1349                     required: get_option('libssh'))
1350 endif
1351
1352 libbzip2 = not_found
1353 if not get_option('bzip2').auto() or have_block
1354   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1355                              required: get_option('bzip2'))
1356   if libbzip2.found() and not cc.links('''
1357      #include <bzlib.h>
1358      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1359     libbzip2 = not_found
1360     if get_option('bzip2').enabled()
1361       error('could not link libbzip2')
1362     else
1363       warning('could not link libbzip2, disabling')
1364     endif
1365   endif
1366 endif
1367
1368 liblzfse = not_found
1369 if not get_option('lzfse').auto() or have_block
1370   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1371                              required: get_option('lzfse'))
1372 endif
1373 if liblzfse.found() and not cc.links('''
1374    #include <lzfse.h>
1375    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1376   liblzfse = not_found
1377   if get_option('lzfse').enabled()
1378     error('could not link liblzfse')
1379   else
1380     warning('could not link liblzfse, disabling')
1381   endif
1382 endif
1383
1384 oss = not_found
1385 if get_option('oss').allowed() and have_system
1386   if not cc.has_header('sys/soundcard.h')
1387     # not found
1388   elif targetos == 'netbsd'
1389     oss = cc.find_library('ossaudio', required: get_option('oss'))
1390   else
1391     oss = declare_dependency()
1392   endif
1393
1394   if not oss.found()
1395     if get_option('oss').enabled()
1396       error('OSS not found')
1397     endif
1398   endif
1399 endif
1400 dsound = not_found
1401 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1402   if cc.has_header('dsound.h')
1403     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1404   endif
1405
1406   if not dsound.found()
1407     if get_option('dsound').enabled()
1408       error('DirectSound not found')
1409     endif
1410   endif
1411 endif
1412
1413 coreaudio = not_found
1414 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1415   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1416                          required: get_option('coreaudio'))
1417 endif
1418
1419 opengl = not_found
1420 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1421   epoxy = dependency('epoxy', method: 'pkg-config',
1422                       required: get_option('opengl'))
1423   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1424     opengl = epoxy
1425   elif get_option('opengl').enabled()
1426     error('epoxy/egl.h not found')
1427   endif
1428 endif
1429 gbm = not_found
1430 if (have_system or have_tools) and (virgl.found() or opengl.found())
1431   gbm = dependency('gbm', method: 'pkg-config', required: false)
1432 endif
1433 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1434
1435 gnutls = not_found
1436 gnutls_crypto = not_found
1437 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1438   # For general TLS support our min gnutls matches
1439   # that implied by our platform support matrix
1440   #
1441   # For the crypto backends, we look for a newer
1442   # gnutls:
1443   #
1444   #   Version 3.6.8  is needed to get XTS
1445   #   Version 3.6.13 is needed to get PBKDF
1446   #   Version 3.6.14 is needed to get HW accelerated XTS
1447   #
1448   # If newer enough gnutls isn't available, we can
1449   # still use a different crypto backend to satisfy
1450   # the platform support requirements
1451   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1452                              method: 'pkg-config',
1453                              required: false)
1454   if gnutls_crypto.found()
1455     gnutls = gnutls_crypto
1456   else
1457     # Our min version if all we need is TLS
1458     gnutls = dependency('gnutls', version: '>=3.5.18',
1459                         method: 'pkg-config',
1460                         required: get_option('gnutls'))
1461   endif
1462 endif
1463
1464 # We prefer use of gnutls for crypto, unless the options
1465 # explicitly asked for nettle or gcrypt.
1466 #
1467 # If gnutls isn't available for crypto, then we'll prefer
1468 # gcrypt over nettle for performance reasons.
1469 gcrypt = not_found
1470 nettle = not_found
1471 hogweed = not_found
1472 xts = 'none'
1473
1474 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1475   error('Only one of gcrypt & nettle can be enabled')
1476 endif
1477
1478 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1479 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1480   gnutls_crypto = not_found
1481 endif
1482
1483 if not gnutls_crypto.found()
1484   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1485     gcrypt = dependency('libgcrypt', version: '>=1.8',
1486                         method: 'config-tool',
1487                         required: get_option('gcrypt'))
1488     # Debian has removed -lgpg-error from libgcrypt-config
1489     # as it "spreads unnecessary dependencies" which in
1490     # turn breaks static builds...
1491     if gcrypt.found() and get_option('prefer_static')
1492       gcrypt = declare_dependency(dependencies:
1493         [gcrypt,
1494          cc.find_library('gpg-error', required: true)],
1495         version: gcrypt.version())
1496     endif
1497   endif
1498   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1499     nettle = dependency('nettle', version: '>=3.4',
1500                         method: 'pkg-config',
1501                         required: get_option('nettle'))
1502     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1503       xts = 'private'
1504     endif
1505   endif
1506 endif
1507
1508 gmp = dependency('gmp', required: false, method: 'pkg-config')
1509 if nettle.found() and gmp.found()
1510   hogweed = dependency('hogweed', version: '>=3.4',
1511                        method: 'pkg-config',
1512                        required: get_option('nettle'))
1513 endif
1514
1515
1516 gtk = not_found
1517 gtkx11 = not_found
1518 vte = not_found
1519 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1520
1521 if not get_option('gtk').auto() or have_system
1522   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1523                    method: 'pkg-config',
1524                    required: get_option('gtk'))
1525   if gtk.found()
1526     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1527                         method: 'pkg-config',
1528                         required: false)
1529     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1530                              version: gtk.version())
1531
1532     if not get_option('vte').auto() or have_system
1533       vte = dependency('vte-2.91',
1534                        method: 'pkg-config',
1535                        required: get_option('vte'))
1536     endif
1537   elif have_gtk_clipboard
1538     error('GTK clipboard requested, but GTK not found')
1539   endif
1540 endif
1541
1542 x11 = not_found
1543 if gtkx11.found()
1544   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1545 endif
1546 png = not_found
1547 if get_option('png').allowed() and have_system
1548    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1549                     method: 'pkg-config')
1550 endif
1551 vnc = not_found
1552 jpeg = not_found
1553 sasl = not_found
1554 if get_option('vnc').allowed() and have_system
1555   vnc = declare_dependency() # dummy dependency
1556   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1557                     method: 'pkg-config')
1558   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1559                          required: get_option('vnc_sasl'))
1560   if sasl.found()
1561     sasl = declare_dependency(dependencies: sasl,
1562                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1563   endif
1564 endif
1565
1566 pam = not_found
1567 if not get_option('auth_pam').auto() or have_system
1568   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1569                         required: get_option('auth_pam'))
1570 endif
1571 if pam.found() and not cc.links('''
1572    #include <stddef.h>
1573    #include <security/pam_appl.h>
1574    int main(void) {
1575      const char *service_name = "qemu";
1576      const char *user = "frank";
1577      const struct pam_conv pam_conv = { 0 };
1578      pam_handle_t *pamh = NULL;
1579      pam_start(service_name, user, &pam_conv, &pamh);
1580      return 0;
1581    }''', dependencies: pam)
1582   pam = not_found
1583   if get_option('auth_pam').enabled()
1584     error('could not link libpam')
1585   else
1586     warning('could not link libpam, disabling')
1587   endif
1588 endif
1589
1590 snappy = not_found
1591 if not get_option('snappy').auto() or have_system
1592   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1593                            required: get_option('snappy'))
1594 endif
1595 if snappy.found() and not linker.links('''
1596    #include <snappy-c.h>
1597    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1598   snappy = not_found
1599   if get_option('snappy').enabled()
1600     error('could not link libsnappy')
1601   else
1602     warning('could not link libsnappy, disabling')
1603   endif
1604 endif
1605
1606 lzo = not_found
1607 if not get_option('lzo').auto() or have_system
1608   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1609                         required: get_option('lzo'))
1610 endif
1611 if lzo.found() and not cc.links('''
1612    #include <lzo/lzo1x.h>
1613    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1614   lzo = not_found
1615   if get_option('lzo').enabled()
1616     error('could not link liblzo2')
1617   else
1618     warning('could not link liblzo2, disabling')
1619   endif
1620 endif
1621
1622 numa = not_found
1623 if not get_option('numa').auto() or have_system or have_tools
1624   numa = cc.find_library('numa', has_headers: ['numa.h'],
1625                               required: get_option('numa'))
1626 endif
1627 if numa.found() and not cc.links('''
1628    #include <numa.h>
1629    int main(void) { return numa_available(); }
1630    ''', dependencies: numa)
1631   numa = not_found
1632   if get_option('numa').enabled()
1633     error('could not link numa')
1634   else
1635     warning('could not link numa, disabling')
1636   endif
1637 endif
1638
1639 rdma = not_found
1640 if not get_option('rdma').auto() or have_system
1641   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1642   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1643                                required: get_option('rdma')),
1644                cc.find_library('ibverbs', required: get_option('rdma')),
1645                libumad]
1646   rdma = declare_dependency(dependencies: rdma_libs)
1647   foreach lib: rdma_libs
1648     if not lib.found()
1649       rdma = not_found
1650     endif
1651   endforeach
1652 endif
1653
1654 xen = not_found
1655 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1656   xencontrol = dependency('xencontrol', required: false,
1657                           method: 'pkg-config')
1658   if xencontrol.found()
1659     xen_pc = declare_dependency(version: xencontrol.version(),
1660       dependencies: [
1661         xencontrol,
1662         # disabler: true makes xen_pc.found() return false if any is not found
1663         dependency('xenstore', required: false,
1664                    method: 'pkg-config',
1665                    disabler: true),
1666         dependency('xenforeignmemory', required: false,
1667                    method: 'pkg-config',
1668                    disabler: true),
1669         dependency('xengnttab', required: false,
1670                    method: 'pkg-config',
1671                    disabler: true),
1672         dependency('xenevtchn', required: false,
1673                    method: 'pkg-config',
1674                    disabler: true),
1675         dependency('xendevicemodel', required: false,
1676                    method: 'pkg-config',
1677                    disabler: true),
1678         # optional, no "disabler: true"
1679         dependency('xentoolcore', required: false,
1680                    method: 'pkg-config')])
1681     if xen_pc.found()
1682       xen = xen_pc
1683     endif
1684   endif
1685   if not xen.found()
1686     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1', '4.6.0', '4.5.0', '4.2.0' ]
1687     xen_libs = {
1688       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1689       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1690       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1691       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1692       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1693       '4.6.0': [ 'xenstore', 'xenctrl' ],
1694       '4.5.0': [ 'xenstore', 'xenctrl' ],
1695       '4.2.0': [ 'xenstore', 'xenctrl' ],
1696     }
1697     xen_deps = {}
1698     foreach ver: xen_tests
1699       # cache the various library tests to avoid polluting the logs
1700       xen_test_deps = []
1701       foreach l: xen_libs[ver]
1702         if l not in xen_deps
1703           xen_deps += { l: cc.find_library(l, required: false) }
1704         endif
1705         xen_test_deps += xen_deps[l]
1706       endforeach
1707
1708       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1709       xen_version = ver.split('.')
1710       xen_ctrl_version = xen_version[0] + \
1711         ('0' + xen_version[1]).substring(-2) + \
1712         ('0' + xen_version[2]).substring(-2)
1713       if cc.links(files('scripts/xen-detect.c'),
1714                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1715                   dependencies: xen_test_deps)
1716         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1717         break
1718       endif
1719     endforeach
1720   endif
1721   if xen.found()
1722     accelerators += 'CONFIG_XEN'
1723   elif get_option('xen').enabled()
1724     error('could not compile and link Xen test program')
1725   endif
1726 endif
1727 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1728   .require(xen.found(),
1729            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1730   .require(targetos == 'linux',
1731            error_message: 'Xen PCI passthrough not available on this platform') \
1732   .allowed()
1733
1734
1735 cacard = not_found
1736 if not get_option('smartcard').auto() or have_system
1737   cacard = dependency('libcacard', required: get_option('smartcard'),
1738                       version: '>=2.5.1', method: 'pkg-config')
1739 endif
1740 u2f = not_found
1741 if have_system
1742   u2f = dependency('u2f-emu', required: get_option('u2f'),
1743                    method: 'pkg-config')
1744 endif
1745 canokey = not_found
1746 if have_system
1747   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1748                    method: 'pkg-config')
1749 endif
1750 usbredir = not_found
1751 if not get_option('usb_redir').auto() or have_system
1752   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1753                         version: '>=0.6', method: 'pkg-config')
1754 endif
1755 libusb = not_found
1756 if not get_option('libusb').auto() or have_system
1757   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1758                       version: '>=1.0.13', method: 'pkg-config')
1759 endif
1760
1761 libpmem = not_found
1762 if not get_option('libpmem').auto() or have_system
1763   libpmem = dependency('libpmem', required: get_option('libpmem'),
1764                        method: 'pkg-config')
1765 endif
1766 libdaxctl = not_found
1767 if not get_option('libdaxctl').auto() or have_system
1768   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1769                          version: '>=57', method: 'pkg-config')
1770 endif
1771 tasn1 = not_found
1772 if gnutls.found()
1773   tasn1 = dependency('libtasn1',
1774                      method: 'pkg-config')
1775 endif
1776 keyutils = dependency('libkeyutils', required: false,
1777                       method: 'pkg-config')
1778
1779 has_gettid = cc.has_function('gettid')
1780
1781 # libselinux
1782 selinux = dependency('libselinux',
1783                      required: get_option('selinux'),
1784                      method: 'pkg-config')
1785
1786 # Malloc tests
1787
1788 malloc = []
1789 if get_option('malloc') == 'system'
1790   has_malloc_trim = \
1791     get_option('malloc_trim').allowed() and \
1792     cc.has_function('malloc_trim', prefix: '#include <malloc.h>')
1793 else
1794   has_malloc_trim = false
1795   malloc = cc.find_library(get_option('malloc'), required: true)
1796 endif
1797 if not has_malloc_trim and get_option('malloc_trim').enabled()
1798   if get_option('malloc') == 'system'
1799     error('malloc_trim not available on this platform.')
1800   else
1801     error('malloc_trim not available with non-libc memory allocator')
1802   endif
1803 endif
1804
1805 gnu_source_prefix = '''
1806   #ifndef _GNU_SOURCE
1807   #define _GNU_SOURCE
1808   #endif
1809 '''
1810
1811 # Check whether the glibc provides STATX_BASIC_STATS
1812
1813 has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_source_prefix)
1814
1815 # Check whether statx() provides mount ID information
1816
1817 has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
1818
1819 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1820   .require(targetos == 'linux',
1821            error_message: 'vhost_user_blk_server requires linux') \
1822   .require(have_vhost_user,
1823            error_message: 'vhost_user_blk_server requires vhost-user support') \
1824   .disable_auto_if(not have_tools and not have_system) \
1825   .allowed()
1826
1827 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1828   error('Cannot enable fuse-lseek while fuse is disabled')
1829 endif
1830
1831 fuse = dependency('fuse3', required: get_option('fuse'),
1832                   version: '>=3.1', method: 'pkg-config')
1833
1834 fuse_lseek = not_found
1835 if get_option('fuse_lseek').allowed()
1836   if fuse.version().version_compare('>=3.8')
1837     # Dummy dependency
1838     fuse_lseek = declare_dependency()
1839   elif get_option('fuse_lseek').enabled()
1840     if fuse.found()
1841       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1842     else
1843       error('fuse-lseek requires libfuse, which was not found')
1844     endif
1845   endif
1846 endif
1847
1848 have_libvduse = (targetos == 'linux')
1849 if get_option('libvduse').enabled()
1850     if targetos != 'linux'
1851         error('libvduse requires linux')
1852     endif
1853 elif get_option('libvduse').disabled()
1854     have_libvduse = false
1855 endif
1856
1857 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1858 if get_option('vduse_blk_export').enabled()
1859     if targetos != 'linux'
1860         error('vduse_blk_export requires linux')
1861     elif not have_libvduse
1862         error('vduse_blk_export requires libvduse support')
1863     endif
1864 elif get_option('vduse_blk_export').disabled()
1865     have_vduse_blk_export = false
1866 endif
1867
1868 # libbpf
1869 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1870 if libbpf.found() and not cc.links('''
1871    #include <bpf/libbpf.h>
1872    int main(void)
1873    {
1874      bpf_object__destroy_skeleton(NULL);
1875      return 0;
1876    }''', dependencies: libbpf)
1877   libbpf = not_found
1878   if get_option('bpf').enabled()
1879     error('libbpf skeleton test failed')
1880   else
1881     warning('libbpf skeleton test failed, disabling')
1882   endif
1883 endif
1884
1885 # libdw
1886 libdw = not_found
1887 if not get_option('libdw').auto() or \
1888         (not get_option('prefer_static') and (have_system or have_user))
1889     libdw = dependency('libdw',
1890                        method: 'pkg-config',
1891                        required: get_option('libdw'))
1892 endif
1893
1894 #################
1895 # config-host.h #
1896 #################
1897
1898 audio_drivers_selected = []
1899 if have_system
1900   audio_drivers_available = {
1901     'alsa': alsa.found(),
1902     'coreaudio': coreaudio.found(),
1903     'dsound': dsound.found(),
1904     'jack': jack.found(),
1905     'oss': oss.found(),
1906     'pa': pulse.found(),
1907     'pipewire': pipewire.found(),
1908     'sdl': sdl.found(),
1909     'sndio': sndio.found(),
1910   }
1911   foreach k, v: audio_drivers_available
1912     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1913   endforeach
1914
1915   # Default to native drivers first, OSS second, SDL third
1916   audio_drivers_priority = \
1917     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1918     (targetos == 'linux' ? [] : [ 'sdl' ])
1919   audio_drivers_default = []
1920   foreach k: audio_drivers_priority
1921     if audio_drivers_available[k]
1922       audio_drivers_default += k
1923     endif
1924   endforeach
1925
1926   foreach k: get_option('audio_drv_list')
1927     if k == 'default'
1928       audio_drivers_selected += audio_drivers_default
1929     elif not audio_drivers_available[k]
1930       error('Audio driver "@0@" not available.'.format(k))
1931     else
1932       audio_drivers_selected += k
1933     endif
1934   endforeach
1935 endif
1936 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1937                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1938
1939 if get_option('cfi')
1940   cfi_flags=[]
1941   # Check for dependency on LTO
1942   if not get_option('b_lto')
1943     error('Selected Control-Flow Integrity but LTO is disabled')
1944   endif
1945   if enable_modules
1946     error('Selected Control-Flow Integrity is not compatible with modules')
1947   endif
1948   # Check for cfi flags. CFI requires LTO so we can't use
1949   # get_supported_arguments, but need a more complex "compiles" which allows
1950   # custom arguments
1951   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1952                  args: ['-flto', '-fsanitize=cfi-icall'] )
1953     cfi_flags += '-fsanitize=cfi-icall'
1954   else
1955     error('-fsanitize=cfi-icall is not supported by the compiler')
1956   endif
1957   if cc.compiles('int main () { return 0; }',
1958                  name: '-fsanitize-cfi-icall-generalize-pointers',
1959                  args: ['-flto', '-fsanitize=cfi-icall',
1960                         '-fsanitize-cfi-icall-generalize-pointers'] )
1961     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1962   else
1963     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1964   endif
1965   if get_option('cfi_debug')
1966     if cc.compiles('int main () { return 0; }',
1967                    name: '-fno-sanitize-trap=cfi-icall',
1968                    args: ['-flto', '-fsanitize=cfi-icall',
1969                           '-fno-sanitize-trap=cfi-icall'] )
1970       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1971     else
1972       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1973     endif
1974   endif
1975   add_global_arguments(cfi_flags, native: false, language: all_languages)
1976   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
1977 endif
1978
1979 have_host_block_device = (targetos != 'darwin' or
1980     cc.has_header('IOKit/storage/IOMedia.h'))
1981
1982 dbus_display = get_option('dbus_display') \
1983   .require(gio.version().version_compare('>=2.64'),
1984            error_message: '-display dbus requires glib>=2.64') \
1985   .require(gdbus_codegen.found(),
1986            error_message: gdbus_codegen_error.format('-display dbus')) \
1987   .require(targetos != 'windows',
1988            error_message: '-display dbus is not available on Windows') \
1989   .allowed()
1990
1991 have_virtfs = get_option('virtfs') \
1992     .require(targetos == 'linux' or targetos == 'darwin',
1993              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
1994     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
1995              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
1996     .require(targetos == 'darwin' or libattr.found(),
1997              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
1998     .disable_auto_if(not have_tools and not have_system) \
1999     .allowed()
2000
2001 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
2002     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
2003     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
2004     .disable_auto_if(not have_tools) \
2005     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
2006     .allowed()
2007
2008 if get_option('block_drv_ro_whitelist') == ''
2009   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
2010 else
2011   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
2012         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2013 endif
2014 if get_option('block_drv_rw_whitelist') == ''
2015   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2016 else
2017   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2018         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2019 endif
2020
2021 foreach k : get_option('trace_backends')
2022   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2023 endforeach
2024 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2025 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2026 if iasl.found()
2027   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2028 endif
2029 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2030 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2031 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2032 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2033 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2034
2035 qemu_firmwarepath = ''
2036 foreach k : get_option('qemu_firmwarepath')
2037   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2038 endforeach
2039 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2040
2041 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2042 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2043 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2044 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2045 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2046 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2047
2048 if enable_modules
2049   config_host_data.set('CONFIG_STAMP', run_command(
2050       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2051       meson.project_version(), get_option('pkgversion'), '--',
2052       meson.current_source_dir() / 'configure',
2053       capture: true, check: true).stdout().strip())
2054 endif
2055
2056 have_slirp_smbd = get_option('slirp_smbd') \
2057   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2058   .allowed()
2059 if have_slirp_smbd
2060   smbd_path = get_option('smbd')
2061   if smbd_path == ''
2062     smbd_path = (targetos == 'solaris' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2063   endif
2064   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2065 endif
2066
2067 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2068
2069 if get_option('module_upgrades') and not enable_modules
2070   error('Cannot enable module-upgrades as modules are not enabled')
2071 endif
2072 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2073
2074 config_host_data.set('CONFIG_ATTR', libattr.found())
2075 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2076 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2077 config_host_data.set('CONFIG_COCOA', cocoa.found())
2078 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2079 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2080 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2081 config_host_data.set('CONFIG_LZO', lzo.found())
2082 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
2083 config_host_data.set('CONFIG_BLKIO', blkio.found())
2084 if blkio.found()
2085   config_host_data.set('CONFIG_BLKIO_VHOST_VDPA_FD',
2086                        blkio.version().version_compare('>=1.3.0'))
2087 endif
2088 config_host_data.set('CONFIG_CURL', curl.found())
2089 config_host_data.set('CONFIG_CURSES', curses.found())
2090 config_host_data.set('CONFIG_GBM', gbm.found())
2091 config_host_data.set('CONFIG_GIO', gio.found())
2092 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2093 if glusterfs.found()
2094   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2095   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2096   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2097   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2098   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2099   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2100 endif
2101 config_host_data.set('CONFIG_GTK', gtk.found())
2102 config_host_data.set('CONFIG_VTE', vte.found())
2103 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2104 config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
2105 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2106 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2107 config_host_data.set('CONFIG_EBPF', libbpf.found())
2108 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2109 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2110 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2111 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2112 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2113 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2114 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2115 config_host_data.set('CONFIG_MODULES', enable_modules)
2116 config_host_data.set('CONFIG_NUMA', numa.found())
2117 if numa.found()
2118   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2119                        cc.has_function('numa_has_preferred_many',
2120                                        dependencies: numa))
2121 endif
2122 config_host_data.set('CONFIG_OPENGL', opengl.found())
2123 config_host_data.set('CONFIG_PROFILER', get_option('profiler'))
2124 config_host_data.set('CONFIG_RBD', rbd.found())
2125 config_host_data.set('CONFIG_RDMA', rdma.found())
2126 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2127 config_host_data.set('CONFIG_SDL', sdl.found())
2128 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2129 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2130 if seccomp.found()
2131   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2132 endif
2133 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2134 config_host_data.set('CONFIG_TPM', have_tpm)
2135 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2136 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2137 config_host_data.set('CONFIG_VDE', vde.found())
2138 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2139 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2140 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2141 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2142 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2143 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2144 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2145 config_host_data.set('CONFIG_VMNET', vmnet.found())
2146 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2147 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2148 config_host_data.set('CONFIG_PNG', png.found())
2149 config_host_data.set('CONFIG_VNC', vnc.found())
2150 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2151 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2152 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2153 config_host_data.set('CONFIG_VTE', vte.found())
2154 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2155 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2156 config_host_data.set('CONFIG_GETTID', has_gettid)
2157 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2158 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2159 config_host_data.set('CONFIG_TASN1', tasn1.found())
2160 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2161 config_host_data.set('CONFIG_NETTLE', nettle.found())
2162 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2163 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2164 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2165 config_host_data.set('CONFIG_STATX', has_statx)
2166 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2167 config_host_data.set('CONFIG_ZSTD', zstd.found())
2168 config_host_data.set('CONFIG_FUSE', fuse.found())
2169 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2170 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2171 if spice_protocol.found()
2172 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2173 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2174 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2175 endif
2176 config_host_data.set('CONFIG_SPICE', spice.found())
2177 config_host_data.set('CONFIG_X11', x11.found())
2178 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2179 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2180 config_host_data.set('CONFIG_SELINUX', selinux.found())
2181 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2182 config_host_data.set('CONFIG_LIBDW', libdw.found())
2183 if xen.found()
2184   # protect from xen.version() having less than three components
2185   xen_version = xen.version().split('.') + ['0', '0']
2186   xen_ctrl_version = xen_version[0] + \
2187     ('0' + xen_version[1]).substring(-2) + \
2188     ('0' + xen_version[2]).substring(-2)
2189   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2190 endif
2191 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2192 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2193 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2194 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2195
2196 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2197 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2198
2199 have_coroutine_pool = get_option('coroutine_pool')
2200 if get_option('debug_stack_usage') and have_coroutine_pool
2201   message('Disabling coroutine pool to measure stack usage')
2202   have_coroutine_pool = false
2203 endif
2204 config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2205 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2206 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2207 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2208 config_host_data.set('CONFIG_GPROF', get_option('gprof'))
2209 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2210 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2211 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2212
2213 # has_header
2214 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2215 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2216 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2217 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2218 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2219 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2220 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2221 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2222 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2223 if targetos == 'windows'
2224   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2225 endif
2226
2227 # has_function
2228 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2229 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2230 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2231 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2232 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2233 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2234 # Note that we need to specify prefix: here to avoid incorrectly
2235 # thinking that Windows has posix_memalign()
2236 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2237 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2238 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2239 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2240 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2241 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2242 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2243 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2244 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2245 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2246 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2247 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2248 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2249 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2250 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2251 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2252 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2253 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2254 if rbd.found()
2255   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2256                        cc.has_function('rbd_namespace_exists',
2257                                        dependencies: rbd,
2258                                        prefix: '#include <rbd/librbd.h>'))
2259 endif
2260 if rdma.found()
2261   config_host_data.set('HAVE_IBV_ADVISE_MR',
2262                        cc.has_function('ibv_advise_mr',
2263                                        dependencies: rdma,
2264                                        prefix: '#include <infiniband/verbs.h>'))
2265 endif
2266
2267 have_asan_fiber = false
2268 if get_option('sanitizers') and \
2269    not cc.has_function('__sanitizer_start_switch_fiber',
2270                          args: '-fsanitize=address',
2271                          prefix: '#include <sanitizer/asan_interface.h>')
2272   warning('Missing ASAN due to missing fiber annotation interface')
2273   warning('Without code annotation, the report may be inferior.')
2274 else
2275   have_asan_fiber = true
2276 endif
2277 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2278
2279 # has_header_symbol
2280 config_host_data.set('CONFIG_BLKZONED',
2281                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2282 config_host_data.set('CONFIG_EPOLL_CREATE1',
2283                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2284 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2285                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2286                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2287 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2288                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2289 config_host_data.set('CONFIG_FIEMAP',
2290                      cc.has_header('linux/fiemap.h') and
2291                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2292 config_host_data.set('CONFIG_GETRANDOM',
2293                      cc.has_function('getrandom') and
2294                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2295 config_host_data.set('CONFIG_INOTIFY',
2296                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2297 config_host_data.set('CONFIG_INOTIFY1',
2298                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2299 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2300                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2301 config_host_data.set('CONFIG_RTNETLINK',
2302                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2303 config_host_data.set('CONFIG_SYSMACROS',
2304                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2305 config_host_data.set('HAVE_OPTRESET',
2306                      cc.has_header_symbol('getopt.h', 'optreset'))
2307 config_host_data.set('HAVE_IPPROTO_MPTCP',
2308                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2309
2310 # has_member
2311 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2312                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2313                                    prefix: '#include <signal.h>'))
2314 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2315                      cc.has_member('struct stat', 'st_atim',
2316                                    prefix: '#include <sys/stat.h>'))
2317 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2318                      cc.has_member('struct blk_zone', 'capacity',
2319                                    prefix: '#include <linux/blkzoned.h>'))
2320
2321 # has_type
2322 config_host_data.set('CONFIG_IOVEC',
2323                      cc.has_type('struct iovec',
2324                                  prefix: '#include <sys/uio.h>'))
2325 config_host_data.set('HAVE_UTMPX',
2326                      cc.has_type('struct utmpx',
2327                                  prefix: '#include <utmpx.h>'))
2328
2329 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2330   #include <sys/eventfd.h>
2331   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2332 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2333   #include <unistd.h>
2334   int main(void) {
2335   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2336   return fdatasync(0);
2337   #else
2338   #error Not supported
2339   #endif
2340   }'''))
2341
2342 has_madvise = cc.links(gnu_source_prefix + '''
2343   #include <sys/types.h>
2344   #include <sys/mman.h>
2345   #include <stddef.h>
2346   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2347 missing_madvise_proto = false
2348 if has_madvise
2349   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2350   # but forget to prototype it. In this case, has_madvise will be true (the
2351   # test program links despite a compile warning). To detect the
2352   # missing-prototype case, we try again with a definitely-bogus prototype.
2353   # This will only compile if the system headers don't provide the prototype;
2354   # otherwise the conflicting prototypes will cause a compiler error.
2355   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2356     #include <sys/types.h>
2357     #include <sys/mman.h>
2358     #include <stddef.h>
2359     extern int madvise(int);
2360     int main(void) { return madvise(0); }''')
2361 endif
2362 config_host_data.set('CONFIG_MADVISE', has_madvise)
2363 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2364
2365 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2366   #include <sys/mman.h>
2367   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2368 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2369   #include <fcntl.h>
2370   #if !defined(AT_EMPTY_PATH)
2371   # error missing definition
2372   #else
2373   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2374   #endif'''))
2375 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2376   #include <sys/mman.h>
2377   #include <stddef.h>
2378   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2379
2380 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2381   #include <pthread.h>
2382
2383   static void *f(void *p) { return NULL; }
2384   int main(void)
2385   {
2386     pthread_t thread;
2387     pthread_create(&thread, 0, f, 0);
2388     pthread_setname_np(thread, "QEMU");
2389     return 0;
2390   }''', dependencies: threads))
2391 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2392   #include <pthread.h>
2393
2394   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2395   int main(void)
2396   {
2397     pthread_t thread;
2398     pthread_create(&thread, 0, f, 0);
2399     return 0;
2400   }''', dependencies: threads))
2401 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2402   #include <pthread.h>
2403   #include <pthread_np.h>
2404
2405   static void *f(void *p) { return NULL; }
2406   int main(void)
2407   {
2408     pthread_t thread;
2409     pthread_create(&thread, 0, f, 0);
2410     pthread_set_name_np(thread, "QEMU");
2411     return 0;
2412   }''', dependencies: threads))
2413 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2414   #include <pthread.h>
2415   #include <time.h>
2416
2417   int main(void)
2418   {
2419     pthread_condattr_t attr
2420     pthread_condattr_init(&attr);
2421     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2422     return 0;
2423   }''', dependencies: threads))
2424 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2425   #include <pthread.h>
2426
2427   static void *f(void *p) { return NULL; }
2428   int main(void)
2429   {
2430     int setsize = CPU_ALLOC_SIZE(64);
2431     pthread_t thread;
2432     cpu_set_t *cpuset;
2433     pthread_create(&thread, 0, f, 0);
2434     cpuset = CPU_ALLOC(64);
2435     CPU_ZERO_S(setsize, cpuset);
2436     pthread_setaffinity_np(thread, setsize, cpuset);
2437     pthread_getaffinity_np(thread, setsize, cpuset);
2438     CPU_FREE(cpuset);
2439     return 0;
2440   }''', dependencies: threads))
2441 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2442   #include <sys/signalfd.h>
2443   #include <stddef.h>
2444   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2445 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2446   #include <unistd.h>
2447   #include <fcntl.h>
2448   #include <limits.h>
2449
2450   int main(void)
2451   {
2452     int len, fd = 0;
2453     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2454     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2455     return 0;
2456   }'''))
2457
2458 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2459   #include <sys/mman.h>
2460   int main(void) {
2461     return mlockall(MCL_FUTURE);
2462   }'''))
2463
2464 have_l2tpv3 = false
2465 if get_option('l2tpv3').allowed() and have_system
2466   have_l2tpv3 = cc.has_type('struct mmsghdr',
2467     prefix: gnu_source_prefix + '''
2468       #include <sys/socket.h>
2469       #include <linux/ip.h>''')
2470 endif
2471 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2472
2473 have_netmap = false
2474 if get_option('netmap').allowed() and have_system
2475   have_netmap = cc.compiles('''
2476     #include <inttypes.h>
2477     #include <net/if.h>
2478     #include <net/netmap.h>
2479     #include <net/netmap_user.h>
2480     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2481     #error
2482     #endif
2483     int main(void) { return 0; }''')
2484   if not have_netmap and get_option('netmap').enabled()
2485     error('Netmap headers not available')
2486   endif
2487 endif
2488 config_host_data.set('CONFIG_NETMAP', have_netmap)
2489
2490 # Work around a system header bug with some kernel/XFS header
2491 # versions where they both try to define 'struct fsxattr':
2492 # xfs headers will not try to redefine structs from linux headers
2493 # if this macro is set.
2494 config_host_data.set('HAVE_FSXATTR', cc.links('''
2495   #include <linux/fs.h>
2496   struct fsxattr foo;
2497   int main(void) {
2498     return 0;
2499   }'''))
2500
2501 # Some versions of Mac OS X incorrectly define SIZE_MAX
2502 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2503     #include <stdint.h>
2504     #include <stdio.h>
2505     int main(void) {
2506         return printf("%zu", SIZE_MAX);
2507     }''', args: ['-Werror']))
2508
2509 # See if 64-bit atomic operations are supported.
2510 # Note that without __atomic builtins, we can only
2511 # assume atomic loads/stores max at pointer size.
2512 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2513   #include <stdint.h>
2514   int main(void)
2515   {
2516     uint64_t x = 0, y = 0;
2517     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2518     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2519     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2520     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2521     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2522     return 0;
2523   }'''))
2524
2525 has_int128_type = cc.compiles('''
2526   __int128_t a;
2527   __uint128_t b;
2528   int main(void) { b = a; }''')
2529 config_host_data.set('CONFIG_INT128_TYPE', has_int128_type)
2530
2531 has_int128 = has_int128_type and cc.links('''
2532   __int128_t a;
2533   __uint128_t b;
2534   int main (void) {
2535     a = a + b;
2536     b = a * b;
2537     a = a * a;
2538     return 0;
2539   }''')
2540 config_host_data.set('CONFIG_INT128', has_int128)
2541
2542 if has_int128_type
2543   # "do we have 128-bit atomics which are handled inline and specifically not
2544   # via libatomic". The reason we can't use libatomic is documented in the
2545   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2546   # We only care about these operations on 16-byte aligned pointers, so
2547   # force 16-byte alignment of the pointer, which may be greater than
2548   # __alignof(unsigned __int128) for the host.
2549   atomic_test_128 = '''
2550     int main(int ac, char **av) {
2551       __uint128_t *p = __builtin_assume_aligned(av[ac - 1], 16);
2552       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2553       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2554       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2555       return 0;
2556     }'''
2557   has_atomic128 = cc.links(atomic_test_128)
2558
2559   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2560
2561   if not has_atomic128
2562     # Even with __builtin_assume_aligned, the above test may have failed
2563     # without optimization enabled.  Try again with optimizations locally
2564     # enabled for the function.  See
2565     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2566     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2567     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2568
2569     if not has_atomic128_opt
2570       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2571         int main(void)
2572         {
2573           __uint128_t x = 0, y = 0;
2574           __sync_val_compare_and_swap_16(&x, y, x);
2575           return 0;
2576         }
2577       '''))
2578     endif
2579   endif
2580 endif
2581
2582 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2583   #include <sys/auxv.h>
2584   int main(void) {
2585     return getauxval(AT_HWCAP) == 0;
2586   }'''))
2587
2588 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2589   #include <linux/usbdevice_fs.h>
2590
2591   #ifndef USBDEVFS_GET_CAPABILITIES
2592   #error "USBDEVFS_GET_CAPABILITIES undefined"
2593   #endif
2594
2595   #ifndef USBDEVFS_DISCONNECT_CLAIM
2596   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2597   #endif
2598
2599   int main(void) { return 0; }'''))
2600
2601 have_keyring = get_option('keyring') \
2602   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2603   .require(cc.compiles('''
2604     #include <errno.h>
2605     #include <asm/unistd.h>
2606     #include <linux/keyctl.h>
2607     #include <sys/syscall.h>
2608     #include <unistd.h>
2609     int main(void) {
2610         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2611     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2612 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2613
2614 have_cpuid_h = cc.links('''
2615   #include <cpuid.h>
2616   int main(void) {
2617     unsigned a, b, c, d;
2618     unsigned max = __get_cpuid_max(0, 0);
2619
2620     if (max >= 1) {
2621         __cpuid(1, a, b, c, d);
2622     }
2623
2624     if (max >= 7) {
2625         __cpuid_count(7, 0, a, b, c, d);
2626     }
2627
2628     return 0;
2629   }''')
2630 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2631
2632 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2633   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2634   .require(cc.links('''
2635     #include <cpuid.h>
2636     #include <immintrin.h>
2637     static int __attribute__((target("avx2"))) bar(void *a) {
2638       __m256i x = *(__m256i *)a;
2639       return _mm256_testz_si256(x, x);
2640     }
2641     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2642   '''), error_message: 'AVX2 not available').allowed())
2643
2644 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2645   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2646   .require(cc.links('''
2647     #include <cpuid.h>
2648     #include <immintrin.h>
2649     static int __attribute__((target("avx512f"))) bar(void *a) {
2650       __m512i x = *(__m512i *)a;
2651       return _mm512_test_epi64_mask(x, x);
2652     }
2653     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2654   '''), error_message: 'AVX512F not available').allowed())
2655
2656 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2657   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2658   .require(cc.links('''
2659     #include <cpuid.h>
2660     #include <immintrin.h>
2661     static int __attribute__((target("avx512bw"))) bar(void *a) {
2662       __m512i *x = a;
2663       __m512i res= _mm512_abs_epi8(*x);
2664       return res[1];
2665     }
2666     int main(int argc, char *argv[]) { return bar(argv[0]); }
2667   '''), error_message: 'AVX512BW not available').allowed())
2668
2669 have_pvrdma = get_option('pvrdma') \
2670   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2671   .require(cc.compiles(gnu_source_prefix + '''
2672     #include <sys/mman.h>
2673     int main(void)
2674     {
2675       char buf = 0;
2676       void *addr = &buf;
2677       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2678
2679       return 0;
2680     }'''), error_message: 'PVRDMA requires mremap').allowed()
2681
2682 if have_pvrdma
2683   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2684     #include <infiniband/verbs.h>
2685     int main(void)
2686     {
2687       struct ibv_mr *mr;
2688       struct ibv_pd *pd = NULL;
2689       size_t length = 10;
2690       uint64_t iova = 0;
2691       int access = 0;
2692       void *addr = NULL;
2693
2694       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2695       ibv_dereg_mr(mr);
2696       return 0;
2697     }'''))
2698 endif
2699
2700 if get_option('membarrier').disabled()
2701   have_membarrier = false
2702 elif targetos == 'windows'
2703   have_membarrier = true
2704 elif targetos == 'linux'
2705   have_membarrier = cc.compiles('''
2706     #include <linux/membarrier.h>
2707     #include <sys/syscall.h>
2708     #include <unistd.h>
2709     #include <stdlib.h>
2710     int main(void) {
2711         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2712         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2713         exit(0);
2714     }''')
2715 endif
2716 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2717   .require(have_membarrier, error_message: 'membarrier system call not available') \
2718   .allowed())
2719
2720 have_afalg = get_option('crypto_afalg') \
2721   .require(cc.compiles(gnu_source_prefix + '''
2722     #include <errno.h>
2723     #include <sys/types.h>
2724     #include <sys/socket.h>
2725     #include <linux/if_alg.h>
2726     int main(void) {
2727       int sock;
2728       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2729       return sock;
2730     }
2731   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2732 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2733
2734 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2735   'linux/vm_sockets.h', 'AF_VSOCK',
2736   prefix: '#include <sys/socket.h>',
2737 ))
2738
2739 have_vss = false
2740 have_vss_sdk = false # old xp/2003 SDK
2741 if targetos == 'windows' and link_language == 'cpp'
2742   have_vss = cxx.compiles('''
2743     #define __MIDL_user_allocate_free_DEFINED__
2744     #include <vss.h>
2745     int main(void) { return VSS_CTX_BACKUP; }''')
2746   have_vss_sdk = cxx.has_header('vscoordint.h')
2747 endif
2748 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2749
2750 foreach k, v: config_host
2751   if k.startswith('CONFIG_')
2752     config_host_data.set(k, v == 'y' ? 1 : v)
2753   endif
2754 endforeach
2755
2756 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2757 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2758 if targetos == 'windows'
2759   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2760     #include <stdio.h>
2761     int main(void) {
2762       _lock_file(NULL);
2763       _unlock_file(NULL);
2764       return 0;
2765     }''', name: '_lock_file and _unlock_file'))
2766 endif
2767
2768 if targetos == 'windows'
2769   mingw_has_setjmp_longjmp = cc.links('''
2770     #include <setjmp.h>
2771     int main(void) {
2772       /*
2773        * These functions are not available in setjmp header, but may be
2774        * available at link time, from libmingwex.a.
2775        */
2776       extern int __mingw_setjmp(jmp_buf);
2777       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2778       jmp_buf env;
2779       __mingw_setjmp(env);
2780       __mingw_longjmp(env, 0);
2781     }
2782   ''', name: 'mingw setjmp and longjmp')
2783
2784   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2785     error('mingw must provide setjmp/longjmp for windows-arm64')
2786   endif
2787 endif
2788
2789 ########################
2790 # Target configuration #
2791 ########################
2792
2793 minikconf = find_program('scripts/minikconf.py')
2794 config_all = {}
2795 config_all_devices = {}
2796 config_all_disas = {}
2797 config_devices_mak_list = []
2798 config_devices_h = {}
2799 config_target_h = {}
2800 config_target_mak = {}
2801
2802 disassemblers = {
2803   'alpha' : ['CONFIG_ALPHA_DIS'],
2804   'avr' : ['CONFIG_AVR_DIS'],
2805   'cris' : ['CONFIG_CRIS_DIS'],
2806   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2807   'hppa' : ['CONFIG_HPPA_DIS'],
2808   'i386' : ['CONFIG_I386_DIS'],
2809   'x86_64' : ['CONFIG_I386_DIS'],
2810   'm68k' : ['CONFIG_M68K_DIS'],
2811   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2812   'mips' : ['CONFIG_MIPS_DIS'],
2813   'nios2' : ['CONFIG_NIOS2_DIS'],
2814   'or1k' : ['CONFIG_OPENRISC_DIS'],
2815   'ppc' : ['CONFIG_PPC_DIS'],
2816   'riscv' : ['CONFIG_RISCV_DIS'],
2817   'rx' : ['CONFIG_RX_DIS'],
2818   's390' : ['CONFIG_S390_DIS'],
2819   'sh4' : ['CONFIG_SH4_DIS'],
2820   'sparc' : ['CONFIG_SPARC_DIS'],
2821   'xtensa' : ['CONFIG_XTENSA_DIS'],
2822   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2823 }
2824
2825 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2826 host_kconfig = \
2827   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2828   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2829   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2830   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2831   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2832   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2833   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2834   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2835   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2836   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2837   ('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
2838   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2839   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2840   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2841
2842 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2843
2844 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2845 actual_target_dirs = []
2846 fdt_required = []
2847 foreach target : target_dirs
2848   config_target = { 'TARGET_NAME': target.split('-')[0] }
2849   if target.endswith('linux-user')
2850     if targetos != 'linux'
2851       if default_targets
2852         continue
2853       endif
2854       error('Target @0@ is only available on a Linux host'.format(target))
2855     endif
2856     config_target += { 'CONFIG_LINUX_USER': 'y' }
2857   elif target.endswith('bsd-user')
2858     if 'CONFIG_BSD' not in config_host
2859       if default_targets
2860         continue
2861       endif
2862       error('Target @0@ is only available on a BSD host'.format(target))
2863     endif
2864     config_target += { 'CONFIG_BSD_USER': 'y' }
2865   elif target.endswith('softmmu')
2866     config_target += { 'CONFIG_SOFTMMU': 'y' }
2867   endif
2868   if target.endswith('-user')
2869     config_target += {
2870       'CONFIG_USER_ONLY': 'y',
2871       'CONFIG_QEMU_INTERP_PREFIX':
2872         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2873     }
2874   endif
2875
2876   accel_kconfig = []
2877   foreach sym: accelerators
2878     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2879       config_target += { sym: 'y' }
2880       config_all += { sym: 'y' }
2881       if target in modular_tcg
2882         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2883       else
2884         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2885       endif
2886       accel_kconfig += [ sym + '=y' ]
2887     endif
2888   endforeach
2889   if accel_kconfig.length() == 0
2890     if default_targets
2891       continue
2892     endif
2893     error('No accelerator available for target @0@'.format(target))
2894   endif
2895
2896   actual_target_dirs += target
2897   config_target += keyval.load('configs/targets' / target + '.mak')
2898   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2899
2900   if 'TARGET_NEED_FDT' in config_target
2901     fdt_required += target
2902   endif
2903
2904   # Add default keys
2905   if 'TARGET_BASE_ARCH' not in config_target
2906     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2907   endif
2908   if 'TARGET_ABI_DIR' not in config_target
2909     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2910   endif
2911   if 'TARGET_BIG_ENDIAN' not in config_target
2912     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2913   endif
2914
2915   foreach k, v: disassemblers
2916     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2917       foreach sym: v
2918         config_target += { sym: 'y' }
2919         config_all_disas += { sym: 'y' }
2920       endforeach
2921     endif
2922   endforeach
2923
2924   config_target_data = configuration_data()
2925   foreach k, v: config_target
2926     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2927       # do nothing
2928     elif ignored.contains(k)
2929       # do nothing
2930     elif k == 'TARGET_BASE_ARCH'
2931       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2932       # not used to select files from sourcesets.
2933       config_target_data.set('TARGET_' + v.to_upper(), 1)
2934     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2935       config_target_data.set_quoted(k, v)
2936     elif v == 'y'
2937       config_target_data.set(k, 1)
2938     elif v == 'n'
2939       config_target_data.set(k, 0)
2940     else
2941       config_target_data.set(k, v)
2942     endif
2943   endforeach
2944   config_target_data.set('QEMU_ARCH',
2945                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2946   config_target_h += {target: configure_file(output: target + '-config-target.h',
2947                                                configuration: config_target_data)}
2948
2949   if target.endswith('-softmmu')
2950     config_input = meson.get_external_property(target, 'default')
2951     config_devices_mak = target + '-config-devices.mak'
2952     config_devices_mak = configure_file(
2953       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2954       output: config_devices_mak,
2955       depfile: config_devices_mak + '.d',
2956       capture: true,
2957       command: [minikconf,
2958                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2959                 config_devices_mak, '@DEPFILE@', '@INPUT@',
2960                 host_kconfig, accel_kconfig,
2961                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2962
2963     config_devices_data = configuration_data()
2964     config_devices = keyval.load(config_devices_mak)
2965     foreach k, v: config_devices
2966       config_devices_data.set(k, 1)
2967     endforeach
2968     config_devices_mak_list += config_devices_mak
2969     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2970                                                 configuration: config_devices_data)}
2971     config_target += config_devices
2972     config_all_devices += config_devices
2973   endif
2974   config_target_mak += {target: config_target}
2975 endforeach
2976 target_dirs = actual_target_dirs
2977
2978 # This configuration is used to build files that are shared by
2979 # multiple binaries, and then extracted out of the "common"
2980 # static_library target.
2981 #
2982 # We do not use all_sources()/all_dependencies(), because it would
2983 # build literally all source files, including devices only used by
2984 # targets that are not built for this compilation.  The CONFIG_ALL
2985 # pseudo symbol replaces it.
2986
2987 config_all += config_all_devices
2988 config_all += config_host
2989 config_all += config_all_disas
2990 config_all += {
2991   'CONFIG_XEN': xen.found(),
2992   'CONFIG_SOFTMMU': have_system,
2993   'CONFIG_USER_ONLY': have_user,
2994   'CONFIG_ALL': true,
2995 }
2996
2997 target_configs_h = []
2998 foreach target: target_dirs
2999   target_configs_h += config_target_h[target]
3000   target_configs_h += config_devices_h.get(target, [])
3001 endforeach
3002 genh += custom_target('config-poison.h',
3003                       input: [target_configs_h],
3004                       output: 'config-poison.h',
3005                       capture: true,
3006                       command: [find_program('scripts/make-config-poison.sh'),
3007                                 target_configs_h])
3008
3009 ##############
3010 # Submodules #
3011 ##############
3012
3013 capstone = not_found
3014 if not get_option('capstone').auto() or have_system or have_user
3015   capstone = dependency('capstone', version: '>=3.0.5',
3016                         method: 'pkg-config',
3017                         required: get_option('capstone'))
3018
3019   # Some versions of capstone have broken pkg-config file
3020   # that reports a wrong -I path, causing the #include to
3021   # fail later. If the system has such a broken version
3022   # do not use it.
3023   if capstone.found() and not cc.compiles('#include <capstone.h>',
3024                                           dependencies: [capstone])
3025     capstone = not_found
3026     if get_option('capstone').enabled()
3027       error('capstone requested, but it does not appear to work')
3028     endif
3029   endif
3030 endif
3031
3032 libvfio_user_dep = not_found
3033 if have_system and vfio_user_server_allowed
3034   libvfio_user_proj = subproject('libvfio-user', required: true)
3035   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3036 endif
3037
3038 fdt = not_found
3039 fdt_opt = get_option('fdt')
3040 if fdt_required.length() > 0 or fdt_opt == 'enabled'
3041   if fdt_opt == 'disabled'
3042     error('fdt disabled but required by targets ' + ', '.join(fdt_required))
3043   endif
3044
3045   if fdt_opt in ['enabled', 'auto', 'system']
3046     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3047     if fdt.found() and cc.links('''
3048        #include <libfdt.h>
3049        #include <libfdt_env.h>
3050        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3051          dependencies: fdt)
3052       fdt_opt = 'system'
3053     elif fdt_opt == 'system'
3054        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3055     else
3056       fdt_opt = 'internal'
3057       fdt = not_found
3058     endif
3059   endif
3060   if not fdt.found()
3061     assert(fdt_opt == 'internal')
3062     libfdt_proj = subproject('dtc', required: true,
3063                              default_options: ['tools=false',  'yaml=disabled',
3064                                                'python=disabled', 'default_library=static'])
3065     fdt = libfdt_proj.get_variable('libfdt_dep')
3066   endif
3067 else
3068   fdt_opt = 'disabled'
3069 endif
3070
3071 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3072 config_host_data.set('CONFIG_FDT', fdt.found())
3073 config_host_data.set('CONFIG_SLIRP', slirp.found())
3074
3075 #####################
3076 # Generated sources #
3077 #####################
3078
3079 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3080
3081 hxtool = find_program('scripts/hxtool')
3082 shaderinclude = find_program('scripts/shaderinclude.py')
3083 qapi_gen = find_program('scripts/qapi-gen.py')
3084 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3085                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3086                      meson.current_source_dir() / 'scripts/qapi/common.py',
3087                      meson.current_source_dir() / 'scripts/qapi/error.py',
3088                      meson.current_source_dir() / 'scripts/qapi/events.py',
3089                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3090                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3091                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3092                      meson.current_source_dir() / 'scripts/qapi/main.py',
3093                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3094                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3095                      meson.current_source_dir() / 'scripts/qapi/source.py',
3096                      meson.current_source_dir() / 'scripts/qapi/types.py',
3097                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3098                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3099 ]
3100
3101 tracetool = [
3102   python, files('scripts/tracetool.py'),
3103    '--backend=' + ','.join(get_option('trace_backends'))
3104 ]
3105 tracetool_depends = files(
3106   'scripts/tracetool/backend/log.py',
3107   'scripts/tracetool/backend/__init__.py',
3108   'scripts/tracetool/backend/dtrace.py',
3109   'scripts/tracetool/backend/ftrace.py',
3110   'scripts/tracetool/backend/simple.py',
3111   'scripts/tracetool/backend/syslog.py',
3112   'scripts/tracetool/backend/ust.py',
3113   'scripts/tracetool/format/ust_events_c.py',
3114   'scripts/tracetool/format/ust_events_h.py',
3115   'scripts/tracetool/format/__init__.py',
3116   'scripts/tracetool/format/d.py',
3117   'scripts/tracetool/format/simpletrace_stap.py',
3118   'scripts/tracetool/format/c.py',
3119   'scripts/tracetool/format/h.py',
3120   'scripts/tracetool/format/log_stap.py',
3121   'scripts/tracetool/format/stap.py',
3122   'scripts/tracetool/__init__.py',
3123   'scripts/tracetool/vcpu.py'
3124 )
3125
3126 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3127                     meson.current_source_dir(),
3128                     get_option('pkgversion'), meson.project_version()]
3129 qemu_version = custom_target('qemu-version.h',
3130                              output: 'qemu-version.h',
3131                              command: qemu_version_cmd,
3132                              capture: true,
3133                              build_by_default: true,
3134                              build_always_stale: true)
3135 genh += qemu_version
3136
3137 hxdep = []
3138 hx_headers = [
3139   ['qemu-options.hx', 'qemu-options.def'],
3140   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3141 ]
3142 if have_system
3143   hx_headers += [
3144     ['hmp-commands.hx', 'hmp-commands.h'],
3145     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3146   ]
3147 endif
3148 foreach d : hx_headers
3149   hxdep += custom_target(d[1],
3150                 input: files(d[0]),
3151                 output: d[1],
3152                 capture: true,
3153                 build_by_default: true, # to be removed when added to a target
3154                 command: [hxtool, '-h', '@INPUT0@'])
3155 endforeach
3156 genh += hxdep
3157
3158 ###################
3159 # Collect sources #
3160 ###################
3161
3162 authz_ss = ss.source_set()
3163 blockdev_ss = ss.source_set()
3164 block_ss = ss.source_set()
3165 chardev_ss = ss.source_set()
3166 common_ss = ss.source_set()
3167 crypto_ss = ss.source_set()
3168 hwcore_ss = ss.source_set()
3169 io_ss = ss.source_set()
3170 qmp_ss = ss.source_set()
3171 qom_ss = ss.source_set()
3172 softmmu_ss = ss.source_set()
3173 specific_fuzz_ss = ss.source_set()
3174 specific_ss = ss.source_set()
3175 stub_ss = ss.source_set()
3176 trace_ss = ss.source_set()
3177 user_ss = ss.source_set()
3178 util_ss = ss.source_set()
3179
3180 # accel modules
3181 qtest_module_ss = ss.source_set()
3182 tcg_module_ss = ss.source_set()
3183
3184 modules = {}
3185 target_modules = {}
3186 hw_arch = {}
3187 target_arch = {}
3188 target_softmmu_arch = {}
3189 target_user_arch = {}
3190
3191 ###############
3192 # Trace files #
3193 ###############
3194
3195 # TODO: add each directory to the subdirs from its own meson.build, once
3196 # we have those
3197 trace_events_subdirs = [
3198   'crypto',
3199   'qapi',
3200   'qom',
3201   'monitor',
3202   'util',
3203   'gdbstub',
3204 ]
3205 if have_linux_user
3206   trace_events_subdirs += [ 'linux-user' ]
3207 endif
3208 if have_bsd_user
3209   trace_events_subdirs += [ 'bsd-user' ]
3210 endif
3211 if have_block
3212   trace_events_subdirs += [
3213     'authz',
3214     'block',
3215     'io',
3216     'nbd',
3217     'scsi',
3218   ]
3219 endif
3220 if have_system
3221   trace_events_subdirs += [
3222     'accel/kvm',
3223     'audio',
3224     'backends',
3225     'backends/tpm',
3226     'chardev',
3227     'ebpf',
3228     'hw/9pfs',
3229     'hw/acpi',
3230     'hw/adc',
3231     'hw/alpha',
3232     'hw/arm',
3233     'hw/audio',
3234     'hw/block',
3235     'hw/block/dataplane',
3236     'hw/char',
3237     'hw/display',
3238     'hw/dma',
3239     'hw/hyperv',
3240     'hw/i2c',
3241     'hw/i386',
3242     'hw/i386/xen',
3243     'hw/i386/kvm',
3244     'hw/ide',
3245     'hw/input',
3246     'hw/intc',
3247     'hw/isa',
3248     'hw/mem',
3249     'hw/mips',
3250     'hw/misc',
3251     'hw/misc/macio',
3252     'hw/net',
3253     'hw/net/can',
3254     'hw/nubus',
3255     'hw/nvme',
3256     'hw/nvram',
3257     'hw/pci',
3258     'hw/pci-host',
3259     'hw/ppc',
3260     'hw/rdma',
3261     'hw/rdma/vmw',
3262     'hw/rtc',
3263     'hw/s390x',
3264     'hw/scsi',
3265     'hw/sd',
3266     'hw/sh4',
3267     'hw/sparc',
3268     'hw/sparc64',
3269     'hw/ssi',
3270     'hw/timer',
3271     'hw/tpm',
3272     'hw/usb',
3273     'hw/vfio',
3274     'hw/virtio',
3275     'hw/watchdog',
3276     'hw/xen',
3277     'hw/gpio',
3278     'migration',
3279     'net',
3280     'softmmu',
3281     'ui',
3282     'hw/remote',
3283   ]
3284 endif
3285 if have_system or have_user
3286   trace_events_subdirs += [
3287     'accel/tcg',
3288     'hw/core',
3289     'target/arm',
3290     'target/arm/hvf',
3291     'target/hppa',
3292     'target/i386',
3293     'target/i386/kvm',
3294     'target/mips/tcg',
3295     'target/nios2',
3296     'target/ppc',
3297     'target/riscv',
3298     'target/s390x',
3299     'target/s390x/kvm',
3300     'target/sparc',
3301   ]
3302 endif
3303
3304 vhost_user = not_found
3305 if targetos == 'linux' and have_vhost_user
3306   libvhost_user = subproject('libvhost-user')
3307   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3308 endif
3309
3310 libvduse = not_found
3311 if have_libvduse
3312   libvduse_proj = subproject('libvduse')
3313   libvduse = libvduse_proj.get_variable('libvduse_dep')
3314 endif
3315
3316 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3317 # that is filled in by qapi/.
3318 subdir('qapi')
3319 subdir('qobject')
3320 subdir('stubs')
3321 subdir('trace')
3322 subdir('util')
3323 subdir('qom')
3324 subdir('authz')
3325 subdir('crypto')
3326 subdir('ui')
3327 subdir('hw')
3328 subdir('gdbstub')
3329
3330 if enable_modules
3331   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3332   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3333 endif
3334
3335 qom_ss = qom_ss.apply(config_host, strict: false)
3336 libqom = static_library('qom', qom_ss.sources() + genh,
3337                         dependencies: [qom_ss.dependencies()],
3338                         name_suffix: 'fa')
3339 qom = declare_dependency(link_whole: libqom)
3340
3341 event_loop_base = files('event-loop-base.c')
3342 event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3343                                  build_by_default: true)
3344 event_loop_base = declare_dependency(link_whole: event_loop_base,
3345                                      dependencies: [qom])
3346
3347 stub_ss = stub_ss.apply(config_all, strict: false)
3348
3349 util_ss.add_all(trace_ss)
3350 util_ss = util_ss.apply(config_all, strict: false)
3351 libqemuutil = static_library('qemuutil',
3352                              sources: util_ss.sources() + stub_ss.sources() + genh,
3353                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3354 qemuutil = declare_dependency(link_with: libqemuutil,
3355                               sources: genh + version_res,
3356                               dependencies: [event_loop_base])
3357
3358 if have_system or have_user
3359   decodetree = generator(find_program('scripts/decodetree.py'),
3360                          output: 'decode-@BASENAME@.c.inc',
3361                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3362   subdir('libdecnumber')
3363   subdir('target')
3364 endif
3365
3366 subdir('audio')
3367 subdir('io')
3368 subdir('chardev')
3369 subdir('fsdev')
3370 subdir('dump')
3371
3372 if have_block
3373   block_ss.add(files(
3374     'block.c',
3375     'blockjob.c',
3376     'job.c',
3377     'qemu-io-cmds.c',
3378   ))
3379   if config_host_data.get('CONFIG_REPLICATION')
3380     block_ss.add(files('replication.c'))
3381   endif
3382
3383   subdir('nbd')
3384   subdir('scsi')
3385   subdir('block')
3386
3387   blockdev_ss.add(files(
3388     'blockdev.c',
3389     'blockdev-nbd.c',
3390     'iothread.c',
3391     'job-qmp.c',
3392   ), gnutls)
3393
3394   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3395   # os-win32.c does not
3396   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3397   softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3398 endif
3399
3400 common_ss.add(files('cpus-common.c'))
3401 specific_ss.add(files('cpu.c'))
3402
3403 subdir('softmmu')
3404
3405 # Work around a gcc bug/misfeature wherein constant propagation looks
3406 # through an alias:
3407 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3408 # to guess that a const variable is always zero.  Without lto, this is
3409 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3410 # without lto, not even the alias is required -- we simply use different
3411 # declarations in different compilation units.
3412 pagevary = files('page-vary-common.c')
3413 if get_option('b_lto')
3414   pagevary_flags = ['-fno-lto']
3415   if get_option('cfi')
3416     pagevary_flags += '-fno-sanitize=cfi-icall'
3417   endif
3418   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3419                             c_args: pagevary_flags)
3420   pagevary = declare_dependency(link_with: pagevary)
3421 endif
3422 common_ss.add(pagevary)
3423 specific_ss.add(files('page-vary.c'))
3424
3425 subdir('backends')
3426 subdir('disas')
3427 subdir('migration')
3428 subdir('monitor')
3429 subdir('net')
3430 subdir('replay')
3431 subdir('semihosting')
3432 subdir('stats')
3433 subdir('tcg')
3434 subdir('fpu')
3435 subdir('accel')
3436 subdir('plugins')
3437 subdir('ebpf')
3438
3439 common_user_inc = []
3440
3441 subdir('common-user')
3442 subdir('bsd-user')
3443 subdir('linux-user')
3444
3445 # needed for fuzzing binaries
3446 subdir('tests/qtest/libqos')
3447 subdir('tests/qtest/fuzz')
3448
3449 # accel modules
3450 tcg_real_module_ss = ss.source_set()
3451 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3452 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3453 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3454                                 'tcg': tcg_real_module_ss }}
3455
3456 ########################
3457 # Library dependencies #
3458 ########################
3459
3460 modinfo_collect = find_program('scripts/modinfo-collect.py')
3461 modinfo_generate = find_program('scripts/modinfo-generate.py')
3462 modinfo_files = []
3463
3464 block_mods = []
3465 softmmu_mods = []
3466 foreach d, list : modules
3467   if not (d == 'block' ? have_block : have_system)
3468     continue
3469   endif
3470
3471   foreach m, module_ss : list
3472     if enable_modules
3473       module_ss = module_ss.apply(config_all, strict: false)
3474       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3475                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3476       if d == 'block'
3477         block_mods += sl
3478       else
3479         softmmu_mods += sl
3480       endif
3481       if module_ss.sources() != []
3482         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3483         # input. Sources can be used multiple times but objects are
3484         # unique when it comes to lookup in compile_commands.json.
3485         # Depnds on a mesion version with
3486         # https://github.com/mesonbuild/meson/pull/8900
3487         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3488                                        output: d + '-' + m + '.modinfo',
3489                                        input: module_ss.sources() + genh,
3490                                        capture: true,
3491                                        command: [modinfo_collect, module_ss.sources()])
3492       endif
3493     else
3494       if d == 'block'
3495         block_ss.add_all(module_ss)
3496       else
3497         softmmu_ss.add_all(module_ss)
3498       endif
3499     endif
3500   endforeach
3501 endforeach
3502
3503 foreach d, list : target_modules
3504   foreach m, module_ss : list
3505     if enable_modules
3506       foreach target : target_dirs
3507         if target.endswith('-softmmu')
3508           config_target = config_target_mak[target]
3509           config_target += config_host
3510           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3511           c_args = ['-DNEED_CPU_H',
3512                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3513                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3514           target_module_ss = module_ss.apply(config_target, strict: false)
3515           if target_module_ss.sources() != []
3516             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3517             sl = static_library(module_name,
3518                                 [genh, target_module_ss.sources()],
3519                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3520                                 include_directories: target_inc,
3521                                 c_args: c_args,
3522                                 pic: true)
3523             softmmu_mods += sl
3524             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3525             modinfo_files += custom_target(module_name + '.modinfo',
3526                                            output: module_name + '.modinfo',
3527                                            input: target_module_ss.sources() + genh,
3528                                            capture: true,
3529                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3530           endif
3531         endif
3532       endforeach
3533     else
3534       specific_ss.add_all(module_ss)
3535     endif
3536   endforeach
3537 endforeach
3538
3539 if enable_modules
3540   foreach target : target_dirs
3541     if target.endswith('-softmmu')
3542       config_target = config_target_mak[target]
3543       config_devices_mak = target + '-config-devices.mak'
3544       modinfo_src = custom_target('modinfo-' + target + '.c',
3545                                   output: 'modinfo-' + target + '.c',
3546                                   input: modinfo_files,
3547                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3548                                   capture: true)
3549
3550       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3551       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3552
3553       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3554       hw_arch[arch].add(modinfo_dep)
3555     endif
3556   endforeach
3557 endif
3558
3559 nm = find_program('nm')
3560 undefsym = find_program('scripts/undefsym.py')
3561 block_syms = custom_target('block.syms', output: 'block.syms',
3562                              input: [libqemuutil, block_mods],
3563                              capture: true,
3564                              command: [undefsym, nm, '@INPUT@'])
3565 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3566                              input: [libqemuutil, softmmu_mods],
3567                              capture: true,
3568                              command: [undefsym, nm, '@INPUT@'])
3569
3570 authz_ss = authz_ss.apply(config_host, strict: false)
3571 libauthz = static_library('authz', authz_ss.sources() + genh,
3572                           dependencies: [authz_ss.dependencies()],
3573                           name_suffix: 'fa',
3574                           build_by_default: false)
3575
3576 authz = declare_dependency(link_whole: libauthz,
3577                            dependencies: qom)
3578
3579 crypto_ss = crypto_ss.apply(config_host, strict: false)
3580 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3581                            dependencies: [crypto_ss.dependencies()],
3582                            name_suffix: 'fa',
3583                            build_by_default: false)
3584
3585 crypto = declare_dependency(link_whole: libcrypto,
3586                             dependencies: [authz, qom])
3587
3588 io_ss = io_ss.apply(config_host, strict: false)
3589 libio = static_library('io', io_ss.sources() + genh,
3590                        dependencies: [io_ss.dependencies()],
3591                        link_with: libqemuutil,
3592                        name_suffix: 'fa',
3593                        build_by_default: false)
3594
3595 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3596
3597 libmigration = static_library('migration', sources: migration_files + genh,
3598                               name_suffix: 'fa',
3599                               build_by_default: false)
3600 migration = declare_dependency(link_with: libmigration,
3601                                dependencies: [zlib, qom, io])
3602 softmmu_ss.add(migration)
3603
3604 block_ss = block_ss.apply(config_host, strict: false)
3605 libblock = static_library('block', block_ss.sources() + genh,
3606                           dependencies: block_ss.dependencies(),
3607                           link_depends: block_syms,
3608                           name_suffix: 'fa',
3609                           build_by_default: false)
3610
3611 block = declare_dependency(link_whole: [libblock],
3612                            link_args: '@block.syms',
3613                            dependencies: [crypto, io])
3614
3615 blockdev_ss = blockdev_ss.apply(config_host, strict: false)
3616 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3617                              dependencies: blockdev_ss.dependencies(),
3618                              name_suffix: 'fa',
3619                              build_by_default: false)
3620
3621 blockdev = declare_dependency(link_whole: [libblockdev],
3622                               dependencies: [block, event_loop_base])
3623
3624 qmp_ss = qmp_ss.apply(config_host, strict: false)
3625 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3626                         dependencies: qmp_ss.dependencies(),
3627                         name_suffix: 'fa',
3628                         build_by_default: false)
3629
3630 qmp = declare_dependency(link_whole: [libqmp])
3631
3632 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3633                             name_suffix: 'fa',
3634                             dependencies: chardev_ss.dependencies(),
3635                             build_by_default: false)
3636
3637 chardev = declare_dependency(link_whole: libchardev)
3638
3639 hwcore_ss = hwcore_ss.apply(config_host, strict: false)
3640 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3641                            name_suffix: 'fa',
3642                            build_by_default: false)
3643 hwcore = declare_dependency(link_whole: libhwcore)
3644 common_ss.add(hwcore)
3645
3646 ###########
3647 # Targets #
3648 ###########
3649
3650 emulator_modules = []
3651 foreach m : block_mods + softmmu_mods
3652   emulator_modules += shared_module(m.name(),
3653                 build_by_default: true,
3654                 name_prefix: '',
3655                 link_whole: m,
3656                 install: true,
3657                 install_dir: qemu_moddir)
3658 endforeach
3659 if emulator_modules.length() > 0
3660   alias_target('modules', emulator_modules)
3661 endif
3662
3663 softmmu_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3664 common_ss.add(qom, qemuutil)
3665
3666 common_ss.add_all(when: 'CONFIG_SOFTMMU', if_true: [softmmu_ss])
3667 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3668
3669 common_all = common_ss.apply(config_all, strict: false)
3670 common_all = static_library('common',
3671                             build_by_default: false,
3672                             sources: common_all.sources() + genh,
3673                             include_directories: common_user_inc,
3674                             implicit_include_directories: false,
3675                             dependencies: common_all.dependencies(),
3676                             name_suffix: 'fa')
3677
3678 feature_to_c = find_program('scripts/feature_to_c.sh')
3679
3680 if targetos == 'darwin'
3681   entitlement = find_program('scripts/entitlement.sh')
3682 endif
3683
3684 emulators = {}
3685 foreach target : target_dirs
3686   config_target = config_target_mak[target]
3687   target_name = config_target['TARGET_NAME']
3688   target_base_arch = config_target['TARGET_BASE_ARCH']
3689   arch_srcs = [config_target_h[target]]
3690   arch_deps = []
3691   c_args = ['-DNEED_CPU_H',
3692             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3693             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3694   link_args = emulator_link_args
3695
3696   config_target += config_host
3697   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3698   if targetos == 'linux'
3699     target_inc += include_directories('linux-headers', is_system: true)
3700   endif
3701   if target.endswith('-softmmu')
3702     target_type='system'
3703     t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3704     arch_srcs += t.sources()
3705     arch_deps += t.dependencies()
3706
3707     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3708     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3709     arch_srcs += hw.sources()
3710     arch_deps += hw.dependencies()
3711
3712     arch_srcs += config_devices_h[target]
3713     link_args += ['@block.syms', '@qemu.syms']
3714   else
3715     abi = config_target['TARGET_ABI_DIR']
3716     target_type='user'
3717     target_inc += common_user_inc
3718     if target_base_arch in target_user_arch
3719       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3720       arch_srcs += t.sources()
3721       arch_deps += t.dependencies()
3722     endif
3723     if 'CONFIG_LINUX_USER' in config_target
3724       base_dir = 'linux-user'
3725     endif
3726     if 'CONFIG_BSD_USER' in config_target
3727       base_dir = 'bsd-user'
3728       target_inc += include_directories('bsd-user/' / targetos)
3729       target_inc += include_directories('bsd-user/host/' / host_arch)
3730       dir = base_dir / abi
3731       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3732     endif
3733     target_inc += include_directories(
3734       base_dir,
3735       base_dir / abi,
3736     )
3737     if 'CONFIG_LINUX_USER' in config_target
3738       dir = base_dir / abi
3739       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3740       if config_target.has_key('TARGET_SYSTBL_ABI')
3741         arch_srcs += \
3742           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3743                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3744       endif
3745     endif
3746   endif
3747
3748   if 'TARGET_XML_FILES' in config_target
3749     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3750                                 output: target + '-gdbstub-xml.c',
3751                                 input: files(config_target['TARGET_XML_FILES'].split()),
3752                                 command: [feature_to_c, '@INPUT@'],
3753                                 capture: true)
3754     arch_srcs += gdbstub_xml
3755   endif
3756
3757   t = target_arch[target_base_arch].apply(config_target, strict: false)
3758   arch_srcs += t.sources()
3759   arch_deps += t.dependencies()
3760
3761   target_common = common_ss.apply(config_target, strict: false)
3762   objects = common_all.extract_objects(target_common.sources())
3763   deps = target_common.dependencies()
3764
3765   target_specific = specific_ss.apply(config_target, strict: false)
3766   arch_srcs += target_specific.sources()
3767   arch_deps += target_specific.dependencies()
3768
3769   lib = static_library('qemu-' + target,
3770                  sources: arch_srcs + genh,
3771                  dependencies: arch_deps,
3772                  objects: objects,
3773                  include_directories: target_inc,
3774                  c_args: c_args,
3775                  build_by_default: false,
3776                  name_suffix: 'fa')
3777
3778   if target.endswith('-softmmu')
3779     execs = [{
3780       'name': 'qemu-system-' + target_name,
3781       'win_subsystem': 'console',
3782       'sources': files('softmmu/main.c'),
3783       'dependencies': []
3784     }]
3785     if targetos == 'windows' and (sdl.found() or gtk.found())
3786       execs += [{
3787         'name': 'qemu-system-' + target_name + 'w',
3788         'win_subsystem': 'windows',
3789         'sources': files('softmmu/main.c'),
3790         'dependencies': []
3791       }]
3792     endif
3793     if get_option('fuzzing')
3794       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3795       execs += [{
3796         'name': 'qemu-fuzz-' + target_name,
3797         'win_subsystem': 'console',
3798         'sources': specific_fuzz.sources(),
3799         'dependencies': specific_fuzz.dependencies(),
3800       }]
3801     endif
3802   else
3803     execs = [{
3804       'name': 'qemu-' + target_name,
3805       'win_subsystem': 'console',
3806       'sources': [],
3807       'dependencies': []
3808     }]
3809   endif
3810   foreach exe: execs
3811     exe_name = exe['name']
3812     if targetos == 'darwin'
3813       exe_name += '-unsigned'
3814     endif
3815
3816     emulator = executable(exe_name, exe['sources'],
3817                install: true,
3818                c_args: c_args,
3819                dependencies: arch_deps + deps + exe['dependencies'],
3820                objects: lib.extract_all_objects(recursive: true),
3821                link_language: link_language,
3822                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3823                link_args: link_args,
3824                win_subsystem: exe['win_subsystem'])
3825
3826     if targetos == 'darwin'
3827       icon = 'pc-bios/qemu.rsrc'
3828       build_input = [emulator, files(icon)]
3829       install_input = [
3830         get_option('bindir') / exe_name,
3831         meson.current_source_dir() / icon
3832       ]
3833       if 'CONFIG_HVF' in config_target
3834         entitlements = 'accel/hvf/entitlements.plist'
3835         build_input += files(entitlements)
3836         install_input += meson.current_source_dir() / entitlements
3837       endif
3838
3839       emulators += {exe['name'] : custom_target(exe['name'],
3840                    input: build_input,
3841                    output: exe['name'],
3842                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3843       }
3844
3845       meson.add_install_script(entitlement, '--install',
3846                                get_option('bindir') / exe['name'],
3847                                install_input)
3848     else
3849       emulators += {exe['name']: emulator}
3850     endif
3851
3852     if stap.found()
3853       foreach stp: [
3854         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3855         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3856         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3857         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3858       ]
3859         custom_target(exe['name'] + stp['ext'],
3860                       input: trace_events_all,
3861                       output: exe['name'] + stp['ext'],
3862                       install: stp['install'],
3863                       install_dir: get_option('datadir') / 'systemtap/tapset',
3864                       command: [
3865                         tracetool, '--group=all', '--format=' + stp['fmt'],
3866                         '--binary=' + stp['bin'],
3867                         '--target-name=' + target_name,
3868                         '--target-type=' + target_type,
3869                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3870                         '@INPUT@', '@OUTPUT@'
3871                       ],
3872                       depend_files: tracetool_depends)
3873       endforeach
3874     endif
3875   endforeach
3876 endforeach
3877
3878 # Other build targets
3879
3880 if 'CONFIG_PLUGIN' in config_host
3881   install_headers('include/qemu/qemu-plugin.h')
3882 endif
3883
3884 subdir('qga')
3885
3886 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3887 # when we don't build tools or system
3888 if xkbcommon.found()
3889   # used for the update-keymaps target, so include rules even if !have_tools
3890   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3891                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3892 endif
3893
3894 if have_tools
3895   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3896              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3897   qemu_io = executable('qemu-io', files('qemu-io.c'),
3898              dependencies: [block, qemuutil], install: true)
3899   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3900                dependencies: [blockdev, qemuutil, gnutls, selinux],
3901                install: true)
3902
3903   subdir('storage-daemon')
3904   subdir('contrib/rdmacm-mux')
3905   subdir('contrib/elf2dmp')
3906
3907   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3908              dependencies: qemuutil,
3909              install: true)
3910
3911   if have_vhost_user
3912     subdir('contrib/vhost-user-blk')
3913     subdir('contrib/vhost-user-gpu')
3914     subdir('contrib/vhost-user-input')
3915     subdir('contrib/vhost-user-scsi')
3916   endif
3917
3918   if targetos == 'linux'
3919     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3920                dependencies: [qemuutil, libcap_ng],
3921                install: true,
3922                install_dir: get_option('libexecdir'))
3923
3924     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3925                dependencies: [authz, crypto, io, qom, qemuutil,
3926                               libcap_ng, mpathpersist],
3927                install: true)
3928   endif
3929
3930   if have_ivshmem
3931     subdir('contrib/ivshmem-client')
3932     subdir('contrib/ivshmem-server')
3933   endif
3934 endif
3935
3936 subdir('scripts')
3937 subdir('tools')
3938 subdir('pc-bios')
3939 subdir('docs')
3940 subdir('tests')
3941 if gtk.found()
3942   subdir('po')
3943 endif
3944
3945 if host_machine.system() == 'windows'
3946   nsis_cmd = [
3947     find_program('scripts/nsis.py'),
3948     '@OUTPUT@',
3949     get_option('prefix'),
3950     meson.current_source_dir(),
3951     glib_pc.get_variable('bindir'),
3952     host_machine.cpu(),
3953     '--',
3954     '-DDISPLAYVERSION=' + meson.project_version(),
3955   ]
3956   if build_docs
3957     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3958   endif
3959   if gtk.found()
3960     nsis_cmd += '-DCONFIG_GTK=y'
3961   endif
3962
3963   nsis = custom_target('nsis',
3964                        output: 'qemu-setup-' + meson.project_version() + '.exe',
3965                        input: files('qemu.nsi'),
3966                        build_always_stale: true,
3967                        command: nsis_cmd + ['@INPUT@'])
3968   alias_target('installer', nsis)
3969 endif
3970
3971 #########################
3972 # Configuration summary #
3973 #########################
3974
3975 # Build environment
3976 summary_info = {}
3977 summary_info += {'Build directory':   meson.current_build_dir()}
3978 summary_info += {'Source path':       meson.current_source_dir()}
3979 summary_info += {'GIT submodules':    config_host['GIT_SUBMODULES']}
3980 summary_info += {'Download dependencies': get_option('wrap_mode') != 'nodownload'}
3981 summary(summary_info, bool_yn: true, section: 'Build environment')
3982
3983 # Directories
3984 summary_info += {'Install prefix':    get_option('prefix')}
3985 summary_info += {'BIOS directory':    qemu_datadir}
3986 pathsep = targetos == 'windows' ? ';' : ':'
3987 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
3988 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
3989 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
3990 summary_info += {'module directory':  qemu_moddir}
3991 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
3992 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
3993 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
3994 if targetos != 'windows'
3995   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
3996   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
3997 else
3998   summary_info += {'local state directory': 'queried at runtime'}
3999 endif
4000 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4001 summary(summary_info, bool_yn: true, section: 'Directories')
4002
4003 # Host binaries
4004 summary_info = {}
4005 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4006 summary_info += {'sphinx-build':      sphinx_build}
4007 if config_host.has_key('HAVE_GDB_BIN')
4008   summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
4009 endif
4010 summary_info += {'iasl':              iasl}
4011 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4012 if targetos == 'windows' and have_ga
4013   summary_info += {'wixl':            wixl}
4014 endif
4015 if slirp.found() and have_system
4016   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4017 endif
4018 summary(summary_info, bool_yn: true, section: 'Host binaries')
4019
4020 # Configurable features
4021 summary_info = {}
4022 summary_info += {'Documentation':     build_docs}
4023 summary_info += {'system-mode emulation': have_system}
4024 summary_info += {'user-mode emulation': have_user}
4025 summary_info += {'block layer':       have_block}
4026 summary_info += {'Install blobs':     get_option('install_blobs')}
4027 summary_info += {'module support':    enable_modules}
4028 if enable_modules
4029   summary_info += {'alternative module path': get_option('module_upgrades')}
4030 endif
4031 summary_info += {'fuzzing support':   get_option('fuzzing')}
4032 if have_system
4033   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4034 endif
4035 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4036 if 'simple' in get_option('trace_backends')
4037   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4038 endif
4039 summary_info += {'D-Bus display':     dbus_display}
4040 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4041 summary_info += {'vhost-kernel support': have_vhost_kernel}
4042 summary_info += {'vhost-net support': have_vhost_net}
4043 summary_info += {'vhost-user support': have_vhost_user}
4044 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4045 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4046 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4047 summary_info += {'build guest agent': have_ga}
4048 summary(summary_info, bool_yn: true, section: 'Configurable features')
4049
4050 # Compilation information
4051 summary_info = {}
4052 summary_info += {'host CPU':          cpu}
4053 summary_info += {'host endianness':   build_machine.endian()}
4054 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4055 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4056 if link_language == 'cpp'
4057   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4058 else
4059   summary_info += {'C++ compiler':      false}
4060 endif
4061 if targetos == 'darwin'
4062   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4063 endif
4064 option_cflags = (get_option('debug') ? ['-g'] : [])
4065 if get_option('optimization') != 'plain'
4066   option_cflags += ['-O' + get_option('optimization')]
4067 endif
4068 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4069 if link_language == 'cpp'
4070   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4071 endif
4072 if targetos == 'darwin'
4073   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4074 endif
4075 link_args = get_option(link_language + '_link_args')
4076 if link_args.length() > 0
4077   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4078 endif
4079 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4080 if 'cpp' in all_languages
4081   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4082 endif
4083 if 'objc' in all_languages
4084   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4085 endif
4086 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4087 summary_info += {'profiler':          get_option('profiler')}
4088 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4089 summary_info += {'PIE':               get_option('b_pie')}
4090 summary_info += {'static build':      config_host.has_key('CONFIG_STATIC')}
4091 summary_info += {'malloc trim support': has_malloc_trim}
4092 summary_info += {'membarrier':        have_membarrier}
4093 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4094 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4095 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4096 summary_info += {'memory allocator':  get_option('malloc')}
4097 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4098 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4099 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4100 if get_option('gprof')
4101   gprof_info = 'YES (deprecated)'
4102 else
4103   gprof_info = get_option('gprof')
4104 endif
4105 summary_info += {'gprof':             gprof_info}
4106 summary_info += {'gcov':              get_option('b_coverage')}
4107 summary_info += {'thread sanitizer':  get_option('tsan')}
4108 summary_info += {'CFI support':       get_option('cfi')}
4109 if get_option('cfi')
4110   summary_info += {'CFI debug support': get_option('cfi_debug')}
4111 endif
4112 summary_info += {'strip binaries':    get_option('strip')}
4113 summary_info += {'sparse':            sparse}
4114 summary_info += {'mingw32 support':   targetos == 'windows'}
4115 summary(summary_info, bool_yn: true, section: 'Compilation')
4116
4117 # snarf the cross-compilation information for tests
4118 summary_info = {}
4119 have_cross = false
4120 foreach target: target_dirs
4121   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4122   if fs.exists(tcg_mak)
4123     config_cross_tcg = keyval.load(tcg_mak)
4124     if 'CC' in config_cross_tcg
4125       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4126       have_cross = true
4127     endif
4128   endif
4129 endforeach
4130 if have_cross
4131   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4132 endif
4133
4134 # Targets and accelerators
4135 summary_info = {}
4136 if have_system
4137   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4138   summary_info += {'HAX support':       config_all.has_key('CONFIG_HAX')}
4139   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4140   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4141   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4142   summary_info += {'Xen support':       xen.found()}
4143   if xen.found()
4144     summary_info += {'xen ctrl version':  xen.version()}
4145   endif
4146   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4147 endif
4148 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4149 if config_all.has_key('CONFIG_TCG')
4150   if get_option('tcg_interpreter')
4151     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4152   else
4153     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4154   endif
4155   summary_info += {'TCG plugins': config_host.has_key('CONFIG_PLUGIN')}
4156   summary_info += {'TCG debug enabled': config_host.has_key('CONFIG_DEBUG_TCG')}
4157 endif
4158 summary_info += {'target list':       ' '.join(target_dirs)}
4159 if have_system
4160   summary_info += {'default devices':   get_option('default_devices')}
4161   summary_info += {'out of process emulation': multiprocess_allowed}
4162   summary_info += {'vfio-user server': vfio_user_server_allowed}
4163 endif
4164 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4165
4166 # Block layer
4167 summary_info = {}
4168 summary_info += {'coroutine backend': coroutine_backend}
4169 summary_info += {'coroutine pool':    have_coroutine_pool}
4170 if have_block
4171   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4172   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4173   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4174   summary_info += {'VirtFS (9P) support':    have_virtfs}
4175   summary_info += {'VirtFS (9P) Proxy Helper support': have_virtfs_proxy_helper}
4176   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4177   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4178   summary_info += {'bochs support':     get_option('bochs').allowed()}
4179   summary_info += {'cloop support':     get_option('cloop').allowed()}
4180   summary_info += {'dmg support':       get_option('dmg').allowed()}
4181   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4182   summary_info += {'vdi support':       get_option('vdi').allowed()}
4183   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4184   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4185   summary_info += {'vpc support':       get_option('vpc').allowed()}
4186   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4187   summary_info += {'qed support':       get_option('qed').allowed()}
4188   summary_info += {'parallels support': get_option('parallels').allowed()}
4189   summary_info += {'FUSE exports':      fuse}
4190   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4191 endif
4192 summary(summary_info, bool_yn: true, section: 'Block layer support')
4193
4194 # Crypto
4195 summary_info = {}
4196 summary_info += {'TLS priority':      get_option('tls_priority')}
4197 summary_info += {'GNUTLS support':    gnutls}
4198 if gnutls.found()
4199   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4200 endif
4201 summary_info += {'libgcrypt':         gcrypt}
4202 summary_info += {'nettle':            nettle}
4203 if nettle.found()
4204    summary_info += {'  XTS':             xts != 'private'}
4205 endif
4206 summary_info += {'AF_ALG support':    have_afalg}
4207 summary_info += {'rng-none':          get_option('rng_none')}
4208 summary_info += {'Linux keyring':     have_keyring}
4209 summary(summary_info, bool_yn: true, section: 'Crypto')
4210
4211 # UI
4212 summary_info = {}
4213 if targetos == 'darwin'
4214   summary_info += {'Cocoa support':           cocoa}
4215 endif
4216 summary_info += {'SDL support':       sdl}
4217 summary_info += {'SDL image support': sdl_image}
4218 summary_info += {'GTK support':       gtk}
4219 summary_info += {'pixman':            pixman}
4220 summary_info += {'VTE support':       vte}
4221 summary_info += {'PNG support':       png}
4222 summary_info += {'VNC support':       vnc}
4223 if vnc.found()
4224   summary_info += {'VNC SASL support':  sasl}
4225   summary_info += {'VNC JPEG support':  jpeg}
4226 endif
4227 summary_info += {'spice protocol support': spice_protocol}
4228 if spice_protocol.found()
4229   summary_info += {'  spice server support': spice}
4230 endif
4231 summary_info += {'curses support':    curses}
4232 summary_info += {'brlapi support':    brlapi}
4233 summary(summary_info, bool_yn: true, section: 'User interface')
4234
4235 # Audio backends
4236 summary_info = {}
4237 if targetos not in ['darwin', 'haiku', 'windows']
4238   summary_info += {'OSS support':     oss}
4239   summary_info += {'sndio support':   sndio}
4240 elif targetos == 'darwin'
4241   summary_info += {'CoreAudio support': coreaudio}
4242 elif targetos == 'windows'
4243   summary_info += {'DirectSound support': dsound}
4244 endif
4245 if targetos == 'linux'
4246   summary_info += {'ALSA support':    alsa}
4247   summary_info += {'PulseAudio support': pulse}
4248 endif
4249 summary_info += {'Pipewire support':  pipewire}
4250 summary_info += {'JACK support':      jack}
4251 summary(summary_info, bool_yn: true, section: 'Audio backends')
4252
4253 # Network backends
4254 summary_info = {}
4255 if targetos == 'darwin'
4256   summary_info += {'vmnet.framework support': vmnet}
4257 endif
4258 summary_info += {'slirp support':     slirp}
4259 summary_info += {'vde support':       vde}
4260 summary_info += {'netmap support':    have_netmap}
4261 summary_info += {'l2tpv3 support':    have_l2tpv3}
4262 summary(summary_info, bool_yn: true, section: 'Network backends')
4263
4264 # Libraries
4265 summary_info = {}
4266 summary_info += {'libtasn1':          tasn1}
4267 summary_info += {'PAM':               pam}
4268 summary_info += {'iconv support':     iconv}
4269 summary_info += {'virgl support':     virgl}
4270 summary_info += {'blkio support':     blkio}
4271 summary_info += {'curl support':      curl}
4272 summary_info += {'Multipath support': mpathpersist}
4273 summary_info += {'Linux AIO support': libaio}
4274 summary_info += {'Linux io_uring support': linux_io_uring}
4275 summary_info += {'ATTR/XATTR support': libattr}
4276 summary_info += {'RDMA support':      rdma}
4277 summary_info += {'PVRDMA support':    have_pvrdma}
4278 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4279 summary_info += {'libcap-ng support': libcap_ng}
4280 summary_info += {'bpf support':       libbpf}
4281 summary_info += {'rbd support':       rbd}
4282 summary_info += {'smartcard support': cacard}
4283 summary_info += {'U2F support':       u2f}
4284 summary_info += {'libusb':            libusb}
4285 summary_info += {'usb net redir':     usbredir}
4286 summary_info += {'OpenGL support (epoxy)': opengl}
4287 summary_info += {'GBM':               gbm}
4288 summary_info += {'libiscsi support':  libiscsi}
4289 summary_info += {'libnfs support':    libnfs}
4290 if targetos == 'windows'
4291   if have_ga
4292     summary_info += {'QGA VSS support':   have_qga_vss}
4293   endif
4294 endif
4295 summary_info += {'seccomp support':   seccomp}
4296 summary_info += {'GlusterFS support': glusterfs}
4297 summary_info += {'TPM support':       have_tpm}
4298 summary_info += {'libssh support':    libssh}
4299 summary_info += {'lzo support':       lzo}
4300 summary_info += {'snappy support':    snappy}
4301 summary_info += {'bzip2 support':     libbzip2}
4302 summary_info += {'lzfse support':     liblzfse}
4303 summary_info += {'zstd support':      zstd}
4304 summary_info += {'NUMA host support': numa}
4305 summary_info += {'capstone':          capstone}
4306 summary_info += {'libpmem support':   libpmem}
4307 summary_info += {'libdaxctl support': libdaxctl}
4308 summary_info += {'libudev':           libudev}
4309 # Dummy dependency, keep .found()
4310 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4311 summary_info += {'selinux':           selinux}
4312 summary_info += {'libdw':             libdw}
4313 summary(summary_info, bool_yn: true, section: 'Dependencies')
4314
4315 if not supported_cpus.contains(cpu)
4316   message()
4317   warning('SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!')
4318   message()
4319   message('CPU host architecture ' + cpu + ' support is not currently maintained.')
4320   message('The QEMU project intends to remove support for this host CPU in')
4321   message('a future release if nobody volunteers to maintain it and to')
4322   message('provide a build host for our continuous integration setup.')
4323   message('configure has succeeded and you can continue to build, but')
4324   message('if you care about QEMU on this platform you should contact')
4325   message('us upstream at qemu-devel@nongnu.org.')
4326 endif
4327
4328 if not supported_oses.contains(targetos)
4329   message()
4330   warning('WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!')
4331   message()
4332   message('Host OS ' + targetos + 'support is not currently maintained.')
4333   message('The QEMU project intends to remove support for this host OS in')
4334   message('a future release if nobody volunteers to maintain it and to')
4335   message('provide a build host for our continuous integration setup.')
4336   message('configure has succeeded and you can continue to build, but')
4337   message('if you care about QEMU on this platform you should contact')
4338   message('us upstream at qemu-devel@nongnu.org.')
4339 endif