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 mpathpersist_new_api = false
1096 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1097   mpath_test_source_new = '''
1098     #include <libudev.h>
1099     #include <mpath_persist.h>
1100     unsigned mpath_mx_alloc_len = 1024;
1101     int logsink;
1102     static struct config *multipath_conf;
1103     extern struct udev *udev;
1104     extern struct config *get_multipath_config(void);
1105     extern void put_multipath_config(struct config *conf);
1106     struct udev *udev;
1107     struct config *get_multipath_config(void) { return multipath_conf; }
1108     void put_multipath_config(struct config *conf) { }
1109     int main(void) {
1110         udev = udev_new();
1111         multipath_conf = mpath_lib_init();
1112         return 0;
1113     }'''
1114   mpath_test_source_old = '''
1115       #include <libudev.h>
1116       #include <mpath_persist.h>
1117       unsigned mpath_mx_alloc_len = 1024;
1118       int logsink;
1119       int main(void) {
1120           struct udev *udev = udev_new();
1121           mpath_lib_init(udev);
1122           return 0;
1123       }'''
1124   libmpathpersist = cc.find_library('mpathpersist',
1125                                     required: get_option('mpath'))
1126   if libmpathpersist.found()
1127     mpathlibs += libmpathpersist
1128     if get_option('prefer_static')
1129       mpathlibs += cc.find_library('devmapper',
1130                                      required: get_option('mpath'))
1131     endif
1132     mpathlibs += cc.find_library('multipath',
1133                                  required: get_option('mpath'))
1134     foreach lib: mpathlibs
1135       if not lib.found()
1136         mpathlibs = []
1137         break
1138       endif
1139     endforeach
1140     if mpathlibs.length() == 0
1141       msg = 'Dependencies missing for libmpathpersist'
1142     elif cc.links(mpath_test_source_new, dependencies: mpathlibs)
1143       mpathpersist = declare_dependency(dependencies: mpathlibs)
1144       mpathpersist_new_api = true
1145     elif cc.links(mpath_test_source_old, dependencies: mpathlibs)
1146       mpathpersist = declare_dependency(dependencies: mpathlibs)
1147     else
1148       msg = 'Cannot detect libmpathpersist API'
1149     endif
1150     if not mpathpersist.found()
1151       if get_option('mpath').enabled()
1152         error(msg)
1153       else
1154         warning(msg + ', disabling')
1155       endif
1156     endif
1157   endif
1158 endif
1159
1160 iconv = not_found
1161 curses = not_found
1162 if have_system and get_option('curses').allowed()
1163   curses_test = '''
1164     #if defined(__APPLE__) || defined(__OpenBSD__)
1165     #define _XOPEN_SOURCE_EXTENDED 1
1166     #endif
1167     #include <locale.h>
1168     #include <curses.h>
1169     #include <wchar.h>
1170     int main(void) {
1171       wchar_t wch = L'w';
1172       setlocale(LC_ALL, "");
1173       resize_term(0, 0);
1174       addwstr(L"wide chars\n");
1175       addnwstr(&wch, 1);
1176       add_wch(WACS_DEGREE);
1177       return 0;
1178     }'''
1179
1180   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1181   curses = dependency(curses_dep_list,
1182                       required: false,
1183                       method: 'pkg-config')
1184   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1185   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1186   if curses.found()
1187     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1188       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1189                                   version: curses.version())
1190     else
1191       msg = 'curses package not usable'
1192       curses = not_found
1193     endif
1194   endif
1195   if not curses.found()
1196     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1197     if targetos != 'windows' and not has_curses_h
1198       message('Trying with /usr/include/ncursesw')
1199       curses_compile_args += ['-I/usr/include/ncursesw']
1200       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1201     endif
1202     if has_curses_h
1203       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1204       foreach curses_libname : curses_libname_list
1205         libcurses = cc.find_library(curses_libname,
1206                                     required: false)
1207         if libcurses.found()
1208           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1209             curses = declare_dependency(compile_args: curses_compile_args,
1210                                         dependencies: [libcurses])
1211             break
1212           else
1213             msg = 'curses library not usable'
1214           endif
1215         endif
1216       endforeach
1217     endif
1218   endif
1219   if get_option('iconv').allowed()
1220     foreach link_args : [ ['-liconv'], [] ]
1221       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1222       # We need to use libiconv if available because mixing libiconv's headers with
1223       # the system libc does not work.
1224       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1225       # included in the command line and libiconv will not be found.
1226       if cc.links('''
1227         #include <iconv.h>
1228         int main(void) {
1229           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1230           return conv != (iconv_t) -1;
1231         }''', args: link_args, dependencies: glib)
1232         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1233         break
1234       endif
1235     endforeach
1236   endif
1237   if curses.found() and not iconv.found()
1238     if get_option('iconv').enabled()
1239       error('iconv not available')
1240     endif
1241     msg = 'iconv required for curses UI but not available'
1242     curses = not_found
1243   endif
1244   if not curses.found() and msg != ''
1245     if get_option('curses').enabled()
1246       error(msg)
1247     else
1248       warning(msg + ', disabling')
1249     endif
1250   endif
1251 endif
1252
1253 brlapi = not_found
1254 if not get_option('brlapi').auto() or have_system
1255   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1256                          required: get_option('brlapi'))
1257   if brlapi.found() and not cc.links('''
1258      #include <brlapi.h>
1259      #include <stddef.h>
1260      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1261     brlapi = not_found
1262     if get_option('brlapi').enabled()
1263       error('could not link brlapi')
1264     else
1265       warning('could not link brlapi, disabling')
1266     endif
1267   endif
1268 endif
1269
1270 sdl = not_found
1271 if not get_option('sdl').auto() or have_system
1272   sdl = dependency('sdl2', required: get_option('sdl'))
1273   sdl_image = not_found
1274 endif
1275 if sdl.found()
1276   # work around 2.0.8 bug
1277   sdl = declare_dependency(compile_args: '-Wno-undef',
1278                            dependencies: sdl,
1279                            version: sdl.version())
1280   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1281                          method: 'pkg-config')
1282 else
1283   if get_option('sdl_image').enabled()
1284     error('sdl-image required, but SDL was @0@'.format(
1285           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1286   endif
1287   sdl_image = not_found
1288 endif
1289
1290 rbd = not_found
1291 if not get_option('rbd').auto() or have_block
1292   librados = cc.find_library('rados', required: get_option('rbd'))
1293   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1294                            required: get_option('rbd'))
1295   if librados.found() and librbd.found()
1296     if cc.links('''
1297       #include <stdio.h>
1298       #include <rbd/librbd.h>
1299       int main(void) {
1300         rados_t cluster;
1301         rados_create(&cluster, NULL);
1302         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1303         #error
1304         #endif
1305         return 0;
1306       }''', dependencies: [librbd, librados])
1307       rbd = declare_dependency(dependencies: [librbd, librados])
1308     elif get_option('rbd').enabled()
1309       error('librbd >= 1.12.0 required')
1310     else
1311       warning('librbd >= 1.12.0 not found, disabling')
1312     endif
1313   endif
1314 endif
1315
1316 glusterfs = not_found
1317 glusterfs_ftruncate_has_stat = false
1318 glusterfs_iocb_has_stat = false
1319 if not get_option('glusterfs').auto() or have_block
1320   glusterfs = dependency('glusterfs-api', version: '>=3',
1321                          required: get_option('glusterfs'),
1322                          method: 'pkg-config')
1323   if glusterfs.found()
1324     glusterfs_ftruncate_has_stat = cc.links('''
1325       #include <glusterfs/api/glfs.h>
1326
1327       int
1328       main(void)
1329       {
1330           /* new glfs_ftruncate() passes two additional args */
1331           return glfs_ftruncate(NULL, 0, NULL, NULL);
1332       }
1333     ''', dependencies: glusterfs)
1334     glusterfs_iocb_has_stat = cc.links('''
1335       #include <glusterfs/api/glfs.h>
1336
1337       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1338       static void
1339       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1340       {}
1341
1342       int
1343       main(void)
1344       {
1345           glfs_io_cbk iocb = &glusterfs_iocb;
1346           iocb(NULL, 0 , NULL, NULL, NULL);
1347           return 0;
1348       }
1349     ''', dependencies: glusterfs)
1350   endif
1351 endif
1352
1353 libssh = not_found
1354 if not get_option('libssh').auto() or have_block
1355   libssh = dependency('libssh', version: '>=0.8.7',
1356                     method: 'pkg-config',
1357                     required: get_option('libssh'))
1358 endif
1359
1360 libbzip2 = not_found
1361 if not get_option('bzip2').auto() or have_block
1362   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1363                              required: get_option('bzip2'))
1364   if libbzip2.found() and not cc.links('''
1365      #include <bzlib.h>
1366      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1367     libbzip2 = not_found
1368     if get_option('bzip2').enabled()
1369       error('could not link libbzip2')
1370     else
1371       warning('could not link libbzip2, disabling')
1372     endif
1373   endif
1374 endif
1375
1376 liblzfse = not_found
1377 if not get_option('lzfse').auto() or have_block
1378   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1379                              required: get_option('lzfse'))
1380 endif
1381 if liblzfse.found() and not cc.links('''
1382    #include <lzfse.h>
1383    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1384   liblzfse = not_found
1385   if get_option('lzfse').enabled()
1386     error('could not link liblzfse')
1387   else
1388     warning('could not link liblzfse, disabling')
1389   endif
1390 endif
1391
1392 oss = not_found
1393 if get_option('oss').allowed() and have_system
1394   if not cc.has_header('sys/soundcard.h')
1395     # not found
1396   elif targetos == 'netbsd'
1397     oss = cc.find_library('ossaudio', required: get_option('oss'))
1398   else
1399     oss = declare_dependency()
1400   endif
1401
1402   if not oss.found()
1403     if get_option('oss').enabled()
1404       error('OSS not found')
1405     endif
1406   endif
1407 endif
1408 dsound = not_found
1409 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1410   if cc.has_header('dsound.h')
1411     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1412   endif
1413
1414   if not dsound.found()
1415     if get_option('dsound').enabled()
1416       error('DirectSound not found')
1417     endif
1418   endif
1419 endif
1420
1421 coreaudio = not_found
1422 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1423   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1424                          required: get_option('coreaudio'))
1425 endif
1426
1427 opengl = not_found
1428 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1429   epoxy = dependency('epoxy', method: 'pkg-config',
1430                       required: get_option('opengl'))
1431   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1432     opengl = epoxy
1433   elif get_option('opengl').enabled()
1434     error('epoxy/egl.h not found')
1435   endif
1436 endif
1437 gbm = not_found
1438 if (have_system or have_tools) and (virgl.found() or opengl.found())
1439   gbm = dependency('gbm', method: 'pkg-config', required: false)
1440 endif
1441 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1442
1443 gnutls = not_found
1444 gnutls_crypto = not_found
1445 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1446   # For general TLS support our min gnutls matches
1447   # that implied by our platform support matrix
1448   #
1449   # For the crypto backends, we look for a newer
1450   # gnutls:
1451   #
1452   #   Version 3.6.8  is needed to get XTS
1453   #   Version 3.6.13 is needed to get PBKDF
1454   #   Version 3.6.14 is needed to get HW accelerated XTS
1455   #
1456   # If newer enough gnutls isn't available, we can
1457   # still use a different crypto backend to satisfy
1458   # the platform support requirements
1459   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1460                              method: 'pkg-config',
1461                              required: false)
1462   if gnutls_crypto.found()
1463     gnutls = gnutls_crypto
1464   else
1465     # Our min version if all we need is TLS
1466     gnutls = dependency('gnutls', version: '>=3.5.18',
1467                         method: 'pkg-config',
1468                         required: get_option('gnutls'))
1469   endif
1470 endif
1471
1472 # We prefer use of gnutls for crypto, unless the options
1473 # explicitly asked for nettle or gcrypt.
1474 #
1475 # If gnutls isn't available for crypto, then we'll prefer
1476 # gcrypt over nettle for performance reasons.
1477 gcrypt = not_found
1478 nettle = not_found
1479 hogweed = not_found
1480 xts = 'none'
1481
1482 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1483   error('Only one of gcrypt & nettle can be enabled')
1484 endif
1485
1486 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1487 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1488   gnutls_crypto = not_found
1489 endif
1490
1491 if not gnutls_crypto.found()
1492   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1493     gcrypt = dependency('libgcrypt', version: '>=1.8',
1494                         method: 'config-tool',
1495                         required: get_option('gcrypt'))
1496     # Debian has removed -lgpg-error from libgcrypt-config
1497     # as it "spreads unnecessary dependencies" which in
1498     # turn breaks static builds...
1499     if gcrypt.found() and get_option('prefer_static')
1500       gcrypt = declare_dependency(dependencies:
1501         [gcrypt,
1502          cc.find_library('gpg-error', required: true)],
1503         version: gcrypt.version())
1504     endif
1505   endif
1506   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1507     nettle = dependency('nettle', version: '>=3.4',
1508                         method: 'pkg-config',
1509                         required: get_option('nettle'))
1510     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1511       xts = 'private'
1512     endif
1513   endif
1514 endif
1515
1516 gmp = dependency('gmp', required: false, method: 'pkg-config')
1517 if nettle.found() and gmp.found()
1518   hogweed = dependency('hogweed', version: '>=3.4',
1519                        method: 'pkg-config',
1520                        required: get_option('nettle'))
1521 endif
1522
1523
1524 gtk = not_found
1525 gtkx11 = not_found
1526 vte = not_found
1527 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1528
1529 if not get_option('gtk').auto() or have_system
1530   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1531                    method: 'pkg-config',
1532                    required: get_option('gtk'))
1533   if gtk.found()
1534     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1535                         method: 'pkg-config',
1536                         required: false)
1537     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1538                              version: gtk.version())
1539
1540     if not get_option('vte').auto() or have_system
1541       vte = dependency('vte-2.91',
1542                        method: 'pkg-config',
1543                        required: get_option('vte'))
1544     endif
1545   elif have_gtk_clipboard
1546     error('GTK clipboard requested, but GTK not found')
1547   endif
1548 endif
1549
1550 x11 = not_found
1551 if gtkx11.found()
1552   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1553 endif
1554 png = not_found
1555 if get_option('png').allowed() and have_system
1556    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1557                     method: 'pkg-config')
1558 endif
1559 vnc = not_found
1560 jpeg = not_found
1561 sasl = not_found
1562 if get_option('vnc').allowed() and have_system
1563   vnc = declare_dependency() # dummy dependency
1564   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1565                     method: 'pkg-config')
1566   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1567                          required: get_option('vnc_sasl'))
1568   if sasl.found()
1569     sasl = declare_dependency(dependencies: sasl,
1570                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1571   endif
1572 endif
1573
1574 pam = not_found
1575 if not get_option('auth_pam').auto() or have_system
1576   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1577                         required: get_option('auth_pam'))
1578 endif
1579 if pam.found() and not cc.links('''
1580    #include <stddef.h>
1581    #include <security/pam_appl.h>
1582    int main(void) {
1583      const char *service_name = "qemu";
1584      const char *user = "frank";
1585      const struct pam_conv pam_conv = { 0 };
1586      pam_handle_t *pamh = NULL;
1587      pam_start(service_name, user, &pam_conv, &pamh);
1588      return 0;
1589    }''', dependencies: pam)
1590   pam = not_found
1591   if get_option('auth_pam').enabled()
1592     error('could not link libpam')
1593   else
1594     warning('could not link libpam, disabling')
1595   endif
1596 endif
1597
1598 snappy = not_found
1599 if not get_option('snappy').auto() or have_system
1600   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1601                            required: get_option('snappy'))
1602 endif
1603 if snappy.found() and not linker.links('''
1604    #include <snappy-c.h>
1605    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1606   snappy = not_found
1607   if get_option('snappy').enabled()
1608     error('could not link libsnappy')
1609   else
1610     warning('could not link libsnappy, disabling')
1611   endif
1612 endif
1613
1614 lzo = not_found
1615 if not get_option('lzo').auto() or have_system
1616   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1617                         required: get_option('lzo'))
1618 endif
1619 if lzo.found() and not cc.links('''
1620    #include <lzo/lzo1x.h>
1621    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1622   lzo = not_found
1623   if get_option('lzo').enabled()
1624     error('could not link liblzo2')
1625   else
1626     warning('could not link liblzo2, disabling')
1627   endif
1628 endif
1629
1630 numa = not_found
1631 if not get_option('numa').auto() or have_system or have_tools
1632   numa = cc.find_library('numa', has_headers: ['numa.h'],
1633                               required: get_option('numa'))
1634 endif
1635 if numa.found() and not cc.links('''
1636    #include <numa.h>
1637    int main(void) { return numa_available(); }
1638    ''', dependencies: numa)
1639   numa = not_found
1640   if get_option('numa').enabled()
1641     error('could not link numa')
1642   else
1643     warning('could not link numa, disabling')
1644   endif
1645 endif
1646
1647 rdma = not_found
1648 if not get_option('rdma').auto() or have_system
1649   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1650   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1651                                required: get_option('rdma')),
1652                cc.find_library('ibverbs', required: get_option('rdma')),
1653                libumad]
1654   rdma = declare_dependency(dependencies: rdma_libs)
1655   foreach lib: rdma_libs
1656     if not lib.found()
1657       rdma = not_found
1658     endif
1659   endforeach
1660 endif
1661
1662 xen = not_found
1663 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1664   xencontrol = dependency('xencontrol', required: false,
1665                           method: 'pkg-config')
1666   if xencontrol.found()
1667     xen_pc = declare_dependency(version: xencontrol.version(),
1668       dependencies: [
1669         xencontrol,
1670         # disabler: true makes xen_pc.found() return false if any is not found
1671         dependency('xenstore', required: false,
1672                    method: 'pkg-config',
1673                    disabler: true),
1674         dependency('xenforeignmemory', required: false,
1675                    method: 'pkg-config',
1676                    disabler: true),
1677         dependency('xengnttab', required: false,
1678                    method: 'pkg-config',
1679                    disabler: true),
1680         dependency('xenevtchn', required: false,
1681                    method: 'pkg-config',
1682                    disabler: true),
1683         dependency('xendevicemodel', required: false,
1684                    method: 'pkg-config',
1685                    disabler: true),
1686         # optional, no "disabler: true"
1687         dependency('xentoolcore', required: false,
1688                    method: 'pkg-config')])
1689     if xen_pc.found()
1690       xen = xen_pc
1691     endif
1692   endif
1693   if not xen.found()
1694     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1', '4.6.0', '4.5.0', '4.2.0' ]
1695     xen_libs = {
1696       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1697       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1698       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1699       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1700       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1701       '4.6.0': [ 'xenstore', 'xenctrl' ],
1702       '4.5.0': [ 'xenstore', 'xenctrl' ],
1703       '4.2.0': [ 'xenstore', 'xenctrl' ],
1704     }
1705     xen_deps = {}
1706     foreach ver: xen_tests
1707       # cache the various library tests to avoid polluting the logs
1708       xen_test_deps = []
1709       foreach l: xen_libs[ver]
1710         if l not in xen_deps
1711           xen_deps += { l: cc.find_library(l, required: false) }
1712         endif
1713         xen_test_deps += xen_deps[l]
1714       endforeach
1715
1716       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1717       xen_version = ver.split('.')
1718       xen_ctrl_version = xen_version[0] + \
1719         ('0' + xen_version[1]).substring(-2) + \
1720         ('0' + xen_version[2]).substring(-2)
1721       if cc.links(files('scripts/xen-detect.c'),
1722                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1723                   dependencies: xen_test_deps)
1724         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1725         break
1726       endif
1727     endforeach
1728   endif
1729   if xen.found()
1730     accelerators += 'CONFIG_XEN'
1731   elif get_option('xen').enabled()
1732     error('could not compile and link Xen test program')
1733   endif
1734 endif
1735 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1736   .require(xen.found(),
1737            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1738   .require(targetos == 'linux',
1739            error_message: 'Xen PCI passthrough not available on this platform') \
1740   .allowed()
1741
1742
1743 cacard = not_found
1744 if not get_option('smartcard').auto() or have_system
1745   cacard = dependency('libcacard', required: get_option('smartcard'),
1746                       version: '>=2.5.1', method: 'pkg-config')
1747 endif
1748 u2f = not_found
1749 if have_system
1750   u2f = dependency('u2f-emu', required: get_option('u2f'),
1751                    method: 'pkg-config')
1752 endif
1753 canokey = not_found
1754 if have_system
1755   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1756                    method: 'pkg-config')
1757 endif
1758 usbredir = not_found
1759 if not get_option('usb_redir').auto() or have_system
1760   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1761                         version: '>=0.6', method: 'pkg-config')
1762 endif
1763 libusb = not_found
1764 if not get_option('libusb').auto() or have_system
1765   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1766                       version: '>=1.0.13', method: 'pkg-config')
1767 endif
1768
1769 libpmem = not_found
1770 if not get_option('libpmem').auto() or have_system
1771   libpmem = dependency('libpmem', required: get_option('libpmem'),
1772                        method: 'pkg-config')
1773 endif
1774 libdaxctl = not_found
1775 if not get_option('libdaxctl').auto() or have_system
1776   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1777                          version: '>=57', method: 'pkg-config')
1778 endif
1779 tasn1 = not_found
1780 if gnutls.found()
1781   tasn1 = dependency('libtasn1',
1782                      method: 'pkg-config')
1783 endif
1784 keyutils = dependency('libkeyutils', required: false,
1785                       method: 'pkg-config')
1786
1787 has_gettid = cc.has_function('gettid')
1788
1789 # libselinux
1790 selinux = dependency('libselinux',
1791                      required: get_option('selinux'),
1792                      method: 'pkg-config')
1793
1794 # Malloc tests
1795
1796 malloc = []
1797 if get_option('malloc') == 'system'
1798   has_malloc_trim = \
1799     get_option('malloc_trim').allowed() and \
1800     cc.links('''#include <malloc.h>
1801                 int main(void) { malloc_trim(0); return 0; }''')
1802 else
1803   has_malloc_trim = false
1804   malloc = cc.find_library(get_option('malloc'), required: true)
1805 endif
1806 if not has_malloc_trim and get_option('malloc_trim').enabled()
1807   if get_option('malloc') == 'system'
1808     error('malloc_trim not available on this platform.')
1809   else
1810     error('malloc_trim not available with non-libc memory allocator')
1811   endif
1812 endif
1813
1814 # Check whether the glibc provides statx()
1815
1816 gnu_source_prefix = '''
1817   #ifndef _GNU_SOURCE
1818   #define _GNU_SOURCE
1819   #endif
1820 '''
1821 statx_test = gnu_source_prefix + '''
1822   #include <sys/stat.h>
1823   int main(void) {
1824     struct statx statxbuf;
1825     statx(0, "", 0, STATX_BASIC_STATS, &statxbuf);
1826     return 0;
1827   }'''
1828
1829 has_statx = cc.links(statx_test)
1830
1831 # Check whether statx() provides mount ID information
1832
1833 statx_mnt_id_test = gnu_source_prefix + '''
1834   #include <sys/stat.h>
1835   int main(void) {
1836     struct statx statxbuf;
1837     statx(0, "", 0, STATX_BASIC_STATS | STATX_MNT_ID, &statxbuf);
1838     return statxbuf.stx_mnt_id;
1839   }'''
1840
1841 has_statx_mnt_id = cc.links(statx_mnt_id_test)
1842
1843 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1844   .require(targetos == 'linux',
1845            error_message: 'vhost_user_blk_server requires linux') \
1846   .require(have_vhost_user,
1847            error_message: 'vhost_user_blk_server requires vhost-user support') \
1848   .disable_auto_if(not have_tools and not have_system) \
1849   .allowed()
1850
1851 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1852   error('Cannot enable fuse-lseek while fuse is disabled')
1853 endif
1854
1855 fuse = dependency('fuse3', required: get_option('fuse'),
1856                   version: '>=3.1', method: 'pkg-config')
1857
1858 fuse_lseek = not_found
1859 if get_option('fuse_lseek').allowed()
1860   if fuse.version().version_compare('>=3.8')
1861     # Dummy dependency
1862     fuse_lseek = declare_dependency()
1863   elif get_option('fuse_lseek').enabled()
1864     if fuse.found()
1865       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1866     else
1867       error('fuse-lseek requires libfuse, which was not found')
1868     endif
1869   endif
1870 endif
1871
1872 have_libvduse = (targetos == 'linux')
1873 if get_option('libvduse').enabled()
1874     if targetos != 'linux'
1875         error('libvduse requires linux')
1876     endif
1877 elif get_option('libvduse').disabled()
1878     have_libvduse = false
1879 endif
1880
1881 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1882 if get_option('vduse_blk_export').enabled()
1883     if targetos != 'linux'
1884         error('vduse_blk_export requires linux')
1885     elif not have_libvduse
1886         error('vduse_blk_export requires libvduse support')
1887     endif
1888 elif get_option('vduse_blk_export').disabled()
1889     have_vduse_blk_export = false
1890 endif
1891
1892 # libbpf
1893 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1894 if libbpf.found() and not cc.links('''
1895    #include <bpf/libbpf.h>
1896    int main(void)
1897    {
1898      bpf_object__destroy_skeleton(NULL);
1899      return 0;
1900    }''', dependencies: libbpf)
1901   libbpf = not_found
1902   if get_option('bpf').enabled()
1903     error('libbpf skeleton test failed')
1904   else
1905     warning('libbpf skeleton test failed, disabling')
1906   endif
1907 endif
1908
1909 # libdw
1910 libdw = not_found
1911 if not get_option('libdw').auto() or \
1912         (not get_option('prefer_static') and (have_system or have_user))
1913     libdw = dependency('libdw',
1914                        method: 'pkg-config',
1915                        required: get_option('libdw'))
1916 endif
1917
1918 #################
1919 # config-host.h #
1920 #################
1921
1922 audio_drivers_selected = []
1923 if have_system
1924   audio_drivers_available = {
1925     'alsa': alsa.found(),
1926     'coreaudio': coreaudio.found(),
1927     'dsound': dsound.found(),
1928     'jack': jack.found(),
1929     'oss': oss.found(),
1930     'pa': pulse.found(),
1931     'pipewire': pipewire.found(),
1932     'sdl': sdl.found(),
1933     'sndio': sndio.found(),
1934   }
1935   foreach k, v: audio_drivers_available
1936     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1937   endforeach
1938
1939   # Default to native drivers first, OSS second, SDL third
1940   audio_drivers_priority = \
1941     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1942     (targetos == 'linux' ? [] : [ 'sdl' ])
1943   audio_drivers_default = []
1944   foreach k: audio_drivers_priority
1945     if audio_drivers_available[k]
1946       audio_drivers_default += k
1947     endif
1948   endforeach
1949
1950   foreach k: get_option('audio_drv_list')
1951     if k == 'default'
1952       audio_drivers_selected += audio_drivers_default
1953     elif not audio_drivers_available[k]
1954       error('Audio driver "@0@" not available.'.format(k))
1955     else
1956       audio_drivers_selected += k
1957     endif
1958   endforeach
1959 endif
1960 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1961                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1962
1963 if get_option('cfi')
1964   cfi_flags=[]
1965   # Check for dependency on LTO
1966   if not get_option('b_lto')
1967     error('Selected Control-Flow Integrity but LTO is disabled')
1968   endif
1969   if enable_modules
1970     error('Selected Control-Flow Integrity is not compatible with modules')
1971   endif
1972   # Check for cfi flags. CFI requires LTO so we can't use
1973   # get_supported_arguments, but need a more complex "compiles" which allows
1974   # custom arguments
1975   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1976                  args: ['-flto', '-fsanitize=cfi-icall'] )
1977     cfi_flags += '-fsanitize=cfi-icall'
1978   else
1979     error('-fsanitize=cfi-icall is not supported by the compiler')
1980   endif
1981   if cc.compiles('int main () { return 0; }',
1982                  name: '-fsanitize-cfi-icall-generalize-pointers',
1983                  args: ['-flto', '-fsanitize=cfi-icall',
1984                         '-fsanitize-cfi-icall-generalize-pointers'] )
1985     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1986   else
1987     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1988   endif
1989   if get_option('cfi_debug')
1990     if cc.compiles('int main () { return 0; }',
1991                    name: '-fno-sanitize-trap=cfi-icall',
1992                    args: ['-flto', '-fsanitize=cfi-icall',
1993                           '-fno-sanitize-trap=cfi-icall'] )
1994       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1995     else
1996       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1997     endif
1998   endif
1999   add_global_arguments(cfi_flags, native: false, language: all_languages)
2000   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
2001 endif
2002
2003 have_host_block_device = (targetos != 'darwin' or
2004     cc.has_header('IOKit/storage/IOMedia.h'))
2005
2006 dbus_display = get_option('dbus_display') \
2007   .require(gio.version().version_compare('>=2.64'),
2008            error_message: '-display dbus requires glib>=2.64') \
2009   .require(gdbus_codegen.found(),
2010            error_message: gdbus_codegen_error.format('-display dbus')) \
2011   .require(targetos != 'windows',
2012            error_message: '-display dbus is not available on Windows') \
2013   .allowed()
2014
2015 have_virtfs = get_option('virtfs') \
2016     .require(targetos == 'linux' or targetos == 'darwin',
2017              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
2018     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
2019              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
2020     .require(targetos == 'darwin' or libattr.found(),
2021              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
2022     .disable_auto_if(not have_tools and not have_system) \
2023     .allowed()
2024
2025 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
2026     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
2027     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
2028     .disable_auto_if(not have_tools) \
2029     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
2030     .allowed()
2031
2032 if get_option('block_drv_ro_whitelist') == ''
2033   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
2034 else
2035   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
2036         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2037 endif
2038 if get_option('block_drv_rw_whitelist') == ''
2039   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2040 else
2041   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2042         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2043 endif
2044
2045 foreach k : get_option('trace_backends')
2046   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2047 endforeach
2048 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2049 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2050 if iasl.found()
2051   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2052 endif
2053 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2054 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2055 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2056 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2057 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2058
2059 qemu_firmwarepath = ''
2060 foreach k : get_option('qemu_firmwarepath')
2061   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2062 endforeach
2063 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2064
2065 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2066 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2067 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2068 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2069 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2070 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2071
2072 if enable_modules
2073   config_host_data.set('CONFIG_STAMP', run_command(
2074       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2075       meson.project_version(), get_option('pkgversion'), '--',
2076       meson.current_source_dir() / 'configure',
2077       capture: true, check: true).stdout().strip())
2078 endif
2079
2080 have_slirp_smbd = get_option('slirp_smbd') \
2081   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2082   .allowed()
2083 if have_slirp_smbd
2084   smbd_path = get_option('smbd')
2085   if smbd_path == ''
2086     smbd_path = (targetos == 'solaris' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2087   endif
2088   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2089 endif
2090
2091 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2092
2093 if get_option('module_upgrades') and not enable_modules
2094   error('Cannot enable module-upgrades as modules are not enabled')
2095 endif
2096 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2097
2098 config_host_data.set('CONFIG_ATTR', libattr.found())
2099 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2100 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2101 config_host_data.set('CONFIG_COCOA', cocoa.found())
2102 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2103 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2104 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2105 config_host_data.set('CONFIG_LZO', lzo.found())
2106 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
2107 config_host_data.set('CONFIG_MPATH_NEW_API', mpathpersist_new_api)
2108 config_host_data.set('CONFIG_BLKIO', blkio.found())
2109 if blkio.found()
2110   config_host_data.set('CONFIG_BLKIO_VHOST_VDPA_FD',
2111                        blkio.version().version_compare('>=1.3.0'))
2112 endif
2113 config_host_data.set('CONFIG_CURL', curl.found())
2114 config_host_data.set('CONFIG_CURSES', curses.found())
2115 config_host_data.set('CONFIG_GBM', gbm.found())
2116 config_host_data.set('CONFIG_GIO', gio.found())
2117 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2118 if glusterfs.found()
2119   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2120   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2121   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2122   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2123   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2124   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2125 endif
2126 config_host_data.set('CONFIG_GTK', gtk.found())
2127 config_host_data.set('CONFIG_VTE', vte.found())
2128 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2129 config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
2130 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2131 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2132 config_host_data.set('CONFIG_EBPF', libbpf.found())
2133 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2134 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2135 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2136 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2137 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2138 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2139 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2140 config_host_data.set('CONFIG_MODULES', enable_modules)
2141 config_host_data.set('CONFIG_NUMA', numa.found())
2142 if numa.found()
2143   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2144                        cc.has_function('numa_has_preferred_many',
2145                                        dependencies: numa))
2146 endif
2147 config_host_data.set('CONFIG_OPENGL', opengl.found())
2148 config_host_data.set('CONFIG_PROFILER', get_option('profiler'))
2149 config_host_data.set('CONFIG_RBD', rbd.found())
2150 config_host_data.set('CONFIG_RDMA', rdma.found())
2151 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2152 config_host_data.set('CONFIG_SDL', sdl.found())
2153 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2154 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2155 if seccomp.found()
2156   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2157 endif
2158 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2159 config_host_data.set('CONFIG_TPM', have_tpm)
2160 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2161 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2162 config_host_data.set('CONFIG_VDE', vde.found())
2163 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2164 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2165 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2166 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2167 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2168 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2169 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2170 config_host_data.set('CONFIG_VMNET', vmnet.found())
2171 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2172 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2173 config_host_data.set('CONFIG_PNG', png.found())
2174 config_host_data.set('CONFIG_VNC', vnc.found())
2175 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2176 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2177 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2178 config_host_data.set('CONFIG_VTE', vte.found())
2179 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2180 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2181 config_host_data.set('CONFIG_GETTID', has_gettid)
2182 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2183 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2184 config_host_data.set('CONFIG_TASN1', tasn1.found())
2185 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2186 config_host_data.set('CONFIG_NETTLE', nettle.found())
2187 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2188 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2189 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2190 config_host_data.set('CONFIG_STATX', has_statx)
2191 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2192 config_host_data.set('CONFIG_ZSTD', zstd.found())
2193 config_host_data.set('CONFIG_FUSE', fuse.found())
2194 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2195 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2196 if spice_protocol.found()
2197 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2198 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2199 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2200 endif
2201 config_host_data.set('CONFIG_SPICE', spice.found())
2202 config_host_data.set('CONFIG_X11', x11.found())
2203 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2204 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2205 config_host_data.set('CONFIG_SELINUX', selinux.found())
2206 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2207 config_host_data.set('CONFIG_LIBDW', libdw.found())
2208 if xen.found()
2209   # protect from xen.version() having less than three components
2210   xen_version = xen.version().split('.') + ['0', '0']
2211   xen_ctrl_version = xen_version[0] + \
2212     ('0' + xen_version[1]).substring(-2) + \
2213     ('0' + xen_version[2]).substring(-2)
2214   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2215 endif
2216 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2217 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2218 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2219 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2220
2221 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2222 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2223
2224 have_coroutine_pool = get_option('coroutine_pool')
2225 if get_option('debug_stack_usage') and have_coroutine_pool
2226   message('Disabling coroutine pool to measure stack usage')
2227   have_coroutine_pool = false
2228 endif
2229 config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2230 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2231 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2232 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2233 config_host_data.set('CONFIG_GPROF', get_option('gprof'))
2234 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2235 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2236 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2237
2238 # has_header
2239 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2240 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2241 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2242 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2243 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2244 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2245 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2246 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2247 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2248 if targetos == 'windows'
2249   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2250 endif
2251
2252 # has_function
2253 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2254 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2255 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2256 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2257 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2258 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2259 # Note that we need to specify prefix: here to avoid incorrectly
2260 # thinking that Windows has posix_memalign()
2261 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2262 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2263 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2264 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2265 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2266 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2267 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2268 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2269 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2270 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2271 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2272 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2273 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2274 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2275 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2276 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2277 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2278 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2279 if rbd.found()
2280   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2281                        cc.has_function('rbd_namespace_exists',
2282                                        dependencies: rbd,
2283                                        prefix: '#include <rbd/librbd.h>'))
2284 endif
2285 if rdma.found()
2286   config_host_data.set('HAVE_IBV_ADVISE_MR',
2287                        cc.has_function('ibv_advise_mr',
2288                                        dependencies: rdma,
2289                                        prefix: '#include <infiniband/verbs.h>'))
2290 endif
2291
2292 have_asan_fiber = false
2293 if get_option('sanitizers') and \
2294    not cc.has_function('__sanitizer_start_switch_fiber',
2295                          args: '-fsanitize=address',
2296                          prefix: '#include <sanitizer/asan_interface.h>')
2297   warning('Missing ASAN due to missing fiber annotation interface')
2298   warning('Without code annotation, the report may be inferior.')
2299 else
2300   have_asan_fiber = true
2301 endif
2302 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2303
2304 # has_header_symbol
2305 config_host_data.set('CONFIG_BLKZONED',
2306                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2307 config_host_data.set('CONFIG_EPOLL_CREATE1',
2308                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2309 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2310                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2311                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2312 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2313                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2314 config_host_data.set('CONFIG_FIEMAP',
2315                      cc.has_header('linux/fiemap.h') and
2316                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2317 config_host_data.set('CONFIG_GETRANDOM',
2318                      cc.has_function('getrandom') and
2319                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2320 config_host_data.set('CONFIG_INOTIFY',
2321                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2322 config_host_data.set('CONFIG_INOTIFY1',
2323                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2324 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2325                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2326 config_host_data.set('CONFIG_RTNETLINK',
2327                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2328 config_host_data.set('CONFIG_SYSMACROS',
2329                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2330 config_host_data.set('HAVE_OPTRESET',
2331                      cc.has_header_symbol('getopt.h', 'optreset'))
2332 config_host_data.set('HAVE_IPPROTO_MPTCP',
2333                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2334
2335 # has_member
2336 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2337                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2338                                    prefix: '#include <signal.h>'))
2339 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2340                      cc.has_member('struct stat', 'st_atim',
2341                                    prefix: '#include <sys/stat.h>'))
2342 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2343                      cc.has_member('struct blk_zone', 'capacity',
2344                                    prefix: '#include <linux/blkzoned.h>'))
2345
2346 # has_type
2347 config_host_data.set('CONFIG_IOVEC',
2348                      cc.has_type('struct iovec',
2349                                  prefix: '#include <sys/uio.h>'))
2350 config_host_data.set('HAVE_UTMPX',
2351                      cc.has_type('struct utmpx',
2352                                  prefix: '#include <utmpx.h>'))
2353
2354 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2355   #include <sys/eventfd.h>
2356   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2357 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2358   #include <unistd.h>
2359   int main(void) {
2360   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2361   return fdatasync(0);
2362   #else
2363   #error Not supported
2364   #endif
2365   }'''))
2366
2367 has_madvise = cc.links(gnu_source_prefix + '''
2368   #include <sys/types.h>
2369   #include <sys/mman.h>
2370   #include <stddef.h>
2371   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2372 missing_madvise_proto = false
2373 if has_madvise
2374   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2375   # but forget to prototype it. In this case, has_madvise will be true (the
2376   # test program links despite a compile warning). To detect the
2377   # missing-prototype case, we try again with a definitely-bogus prototype.
2378   # This will only compile if the system headers don't provide the prototype;
2379   # otherwise the conflicting prototypes will cause a compiler error.
2380   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2381     #include <sys/types.h>
2382     #include <sys/mman.h>
2383     #include <stddef.h>
2384     extern int madvise(int);
2385     int main(void) { return madvise(0); }''')
2386 endif
2387 config_host_data.set('CONFIG_MADVISE', has_madvise)
2388 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2389
2390 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2391   #include <sys/mman.h>
2392   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2393 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2394   #include <fcntl.h>
2395   #if !defined(AT_EMPTY_PATH)
2396   # error missing definition
2397   #else
2398   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2399   #endif'''))
2400 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2401   #include <sys/mman.h>
2402   #include <stddef.h>
2403   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2404
2405 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2406   #include <pthread.h>
2407
2408   static void *f(void *p) { return NULL; }
2409   int main(void)
2410   {
2411     pthread_t thread;
2412     pthread_create(&thread, 0, f, 0);
2413     pthread_setname_np(thread, "QEMU");
2414     return 0;
2415   }''', dependencies: threads))
2416 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2417   #include <pthread.h>
2418
2419   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2420   int main(void)
2421   {
2422     pthread_t thread;
2423     pthread_create(&thread, 0, f, 0);
2424     return 0;
2425   }''', dependencies: threads))
2426 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2427   #include <pthread.h>
2428   #include <pthread_np.h>
2429
2430   static void *f(void *p) { return NULL; }
2431   int main(void)
2432   {
2433     pthread_t thread;
2434     pthread_create(&thread, 0, f, 0);
2435     pthread_set_name_np(thread, "QEMU");
2436     return 0;
2437   }''', dependencies: threads))
2438 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2439   #include <pthread.h>
2440   #include <time.h>
2441
2442   int main(void)
2443   {
2444     pthread_condattr_t attr
2445     pthread_condattr_init(&attr);
2446     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2447     return 0;
2448   }''', dependencies: threads))
2449 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2450   #include <pthread.h>
2451
2452   static void *f(void *p) { return NULL; }
2453   int main(void)
2454   {
2455     int setsize = CPU_ALLOC_SIZE(64);
2456     pthread_t thread;
2457     cpu_set_t *cpuset;
2458     pthread_create(&thread, 0, f, 0);
2459     cpuset = CPU_ALLOC(64);
2460     CPU_ZERO_S(setsize, cpuset);
2461     pthread_setaffinity_np(thread, setsize, cpuset);
2462     pthread_getaffinity_np(thread, setsize, cpuset);
2463     CPU_FREE(cpuset);
2464     return 0;
2465   }''', dependencies: threads))
2466 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2467   #include <sys/signalfd.h>
2468   #include <stddef.h>
2469   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2470 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2471   #include <unistd.h>
2472   #include <fcntl.h>
2473   #include <limits.h>
2474
2475   int main(void)
2476   {
2477     int len, fd = 0;
2478     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2479     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2480     return 0;
2481   }'''))
2482
2483 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2484   #include <sys/mman.h>
2485   int main(void) {
2486     return mlockall(MCL_FUTURE);
2487   }'''))
2488
2489 have_l2tpv3 = false
2490 if get_option('l2tpv3').allowed() and have_system
2491   have_l2tpv3 = cc.has_type('struct mmsghdr',
2492     prefix: gnu_source_prefix + '''
2493       #include <sys/socket.h>
2494       #include <linux/ip.h>''')
2495 endif
2496 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2497
2498 have_netmap = false
2499 if get_option('netmap').allowed() and have_system
2500   have_netmap = cc.compiles('''
2501     #include <inttypes.h>
2502     #include <net/if.h>
2503     #include <net/netmap.h>
2504     #include <net/netmap_user.h>
2505     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2506     #error
2507     #endif
2508     int main(void) { return 0; }''')
2509   if not have_netmap and get_option('netmap').enabled()
2510     error('Netmap headers not available')
2511   endif
2512 endif
2513 config_host_data.set('CONFIG_NETMAP', have_netmap)
2514
2515 # Work around a system header bug with some kernel/XFS header
2516 # versions where they both try to define 'struct fsxattr':
2517 # xfs headers will not try to redefine structs from linux headers
2518 # if this macro is set.
2519 config_host_data.set('HAVE_FSXATTR', cc.links('''
2520   #include <linux/fs.h>
2521   struct fsxattr foo;
2522   int main(void) {
2523     return 0;
2524   }'''))
2525
2526 # Some versions of Mac OS X incorrectly define SIZE_MAX
2527 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2528     #include <stdint.h>
2529     #include <stdio.h>
2530     int main(void) {
2531         return printf("%zu", SIZE_MAX);
2532     }''', args: ['-Werror']))
2533
2534 # See if 64-bit atomic operations are supported.
2535 # Note that without __atomic builtins, we can only
2536 # assume atomic loads/stores max at pointer size.
2537 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2538   #include <stdint.h>
2539   int main(void)
2540   {
2541     uint64_t x = 0, y = 0;
2542     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2543     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2544     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2545     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2546     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2547     return 0;
2548   }'''))
2549
2550 has_int128_type = cc.compiles('''
2551   __int128_t a;
2552   __uint128_t b;
2553   int main(void) { b = a; }''')
2554 config_host_data.set('CONFIG_INT128_TYPE', has_int128_type)
2555
2556 has_int128 = has_int128_type and cc.links('''
2557   __int128_t a;
2558   __uint128_t b;
2559   int main (void) {
2560     a = a + b;
2561     b = a * b;
2562     a = a * a;
2563     return 0;
2564   }''')
2565 config_host_data.set('CONFIG_INT128', has_int128)
2566
2567 if has_int128_type
2568   # "do we have 128-bit atomics which are handled inline and specifically not
2569   # via libatomic". The reason we can't use libatomic is documented in the
2570   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2571   # We only care about these operations on 16-byte aligned pointers, so
2572   # force 16-byte alignment of the pointer, which may be greater than
2573   # __alignof(unsigned __int128) for the host.
2574   atomic_test_128 = '''
2575     int main(int ac, char **av) {
2576       __uint128_t *p = __builtin_assume_aligned(av[ac - 1], 16);
2577       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2578       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2579       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2580       return 0;
2581     }'''
2582   has_atomic128 = cc.links(atomic_test_128)
2583
2584   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2585
2586   if not has_atomic128
2587     # Even with __builtin_assume_aligned, the above test may have failed
2588     # without optimization enabled.  Try again with optimizations locally
2589     # enabled for the function.  See
2590     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2591     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2592     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2593
2594     if not has_atomic128_opt
2595       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2596         int main(void)
2597         {
2598           __uint128_t x = 0, y = 0;
2599           __sync_val_compare_and_swap_16(&x, y, x);
2600           return 0;
2601         }
2602       '''))
2603     endif
2604   endif
2605 endif
2606
2607 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2608   #include <sys/auxv.h>
2609   int main(void) {
2610     return getauxval(AT_HWCAP) == 0;
2611   }'''))
2612
2613 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2614   #include <linux/usbdevice_fs.h>
2615
2616   #ifndef USBDEVFS_GET_CAPABILITIES
2617   #error "USBDEVFS_GET_CAPABILITIES undefined"
2618   #endif
2619
2620   #ifndef USBDEVFS_DISCONNECT_CLAIM
2621   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2622   #endif
2623
2624   int main(void) { return 0; }'''))
2625
2626 have_keyring = get_option('keyring') \
2627   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2628   .require(cc.compiles('''
2629     #include <errno.h>
2630     #include <asm/unistd.h>
2631     #include <linux/keyctl.h>
2632     #include <sys/syscall.h>
2633     #include <unistd.h>
2634     int main(void) {
2635         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2636     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2637 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2638
2639 have_cpuid_h = cc.links('''
2640   #include <cpuid.h>
2641   int main(void) {
2642     unsigned a, b, c, d;
2643     unsigned max = __get_cpuid_max(0, 0);
2644
2645     if (max >= 1) {
2646         __cpuid(1, a, b, c, d);
2647     }
2648
2649     if (max >= 7) {
2650         __cpuid_count(7, 0, a, b, c, d);
2651     }
2652
2653     return 0;
2654   }''')
2655 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2656
2657 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2658   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2659   .require(cc.links('''
2660     #include <cpuid.h>
2661     #include <immintrin.h>
2662     static int __attribute__((target("avx2"))) bar(void *a) {
2663       __m256i x = *(__m256i *)a;
2664       return _mm256_testz_si256(x, x);
2665     }
2666     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2667   '''), error_message: 'AVX2 not available').allowed())
2668
2669 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2670   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2671   .require(cc.links('''
2672     #include <cpuid.h>
2673     #include <immintrin.h>
2674     static int __attribute__((target("avx512f"))) bar(void *a) {
2675       __m512i x = *(__m512i *)a;
2676       return _mm512_test_epi64_mask(x, x);
2677     }
2678     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2679   '''), error_message: 'AVX512F not available').allowed())
2680
2681 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2682   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2683   .require(cc.links('''
2684     #include <cpuid.h>
2685     #include <immintrin.h>
2686     static int __attribute__((target("avx512bw"))) bar(void *a) {
2687       __m512i *x = a;
2688       __m512i res= _mm512_abs_epi8(*x);
2689       return res[1];
2690     }
2691     int main(int argc, char *argv[]) { return bar(argv[0]); }
2692   '''), error_message: 'AVX512BW not available').allowed())
2693
2694 have_pvrdma = get_option('pvrdma') \
2695   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2696   .require(cc.compiles(gnu_source_prefix + '''
2697     #include <sys/mman.h>
2698     int main(void)
2699     {
2700       char buf = 0;
2701       void *addr = &buf;
2702       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2703
2704       return 0;
2705     }'''), error_message: 'PVRDMA requires mremap').allowed()
2706
2707 if have_pvrdma
2708   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2709     #include <infiniband/verbs.h>
2710     int main(void)
2711     {
2712       struct ibv_mr *mr;
2713       struct ibv_pd *pd = NULL;
2714       size_t length = 10;
2715       uint64_t iova = 0;
2716       int access = 0;
2717       void *addr = NULL;
2718
2719       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2720       ibv_dereg_mr(mr);
2721       return 0;
2722     }'''))
2723 endif
2724
2725 if get_option('membarrier').disabled()
2726   have_membarrier = false
2727 elif targetos == 'windows'
2728   have_membarrier = true
2729 elif targetos == 'linux'
2730   have_membarrier = cc.compiles('''
2731     #include <linux/membarrier.h>
2732     #include <sys/syscall.h>
2733     #include <unistd.h>
2734     #include <stdlib.h>
2735     int main(void) {
2736         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2737         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2738         exit(0);
2739     }''')
2740 endif
2741 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2742   .require(have_membarrier, error_message: 'membarrier system call not available') \
2743   .allowed())
2744
2745 have_afalg = get_option('crypto_afalg') \
2746   .require(cc.compiles(gnu_source_prefix + '''
2747     #include <errno.h>
2748     #include <sys/types.h>
2749     #include <sys/socket.h>
2750     #include <linux/if_alg.h>
2751     int main(void) {
2752       int sock;
2753       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2754       return sock;
2755     }
2756   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2757 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2758
2759 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2760   'linux/vm_sockets.h', 'AF_VSOCK',
2761   prefix: '#include <sys/socket.h>',
2762 ))
2763
2764 have_vss = false
2765 have_vss_sdk = false # old xp/2003 SDK
2766 if targetos == 'windows' and link_language == 'cpp'
2767   have_vss = cxx.compiles('''
2768     #define __MIDL_user_allocate_free_DEFINED__
2769     #include <vss.h>
2770     int main(void) { return VSS_CTX_BACKUP; }''')
2771   have_vss_sdk = cxx.has_header('vscoordint.h')
2772 endif
2773 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2774
2775 foreach k, v: config_host
2776   if k.startswith('CONFIG_')
2777     config_host_data.set(k, v == 'y' ? 1 : v)
2778   endif
2779 endforeach
2780
2781 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2782 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2783 if targetos == 'windows'
2784   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2785     #include <stdio.h>
2786     int main(void) {
2787       _lock_file(NULL);
2788       _unlock_file(NULL);
2789       return 0;
2790     }''', name: '_lock_file and _unlock_file'))
2791 endif
2792
2793 if targetos == 'windows'
2794   mingw_has_setjmp_longjmp = cc.links('''
2795     #include <setjmp.h>
2796     int main(void) {
2797       /*
2798        * These functions are not available in setjmp header, but may be
2799        * available at link time, from libmingwex.a.
2800        */
2801       extern int __mingw_setjmp(jmp_buf);
2802       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2803       jmp_buf env;
2804       __mingw_setjmp(env);
2805       __mingw_longjmp(env, 0);
2806     }
2807   ''', name: 'mingw setjmp and longjmp')
2808
2809   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2810     error('mingw must provide setjmp/longjmp for windows-arm64')
2811   endif
2812 endif
2813
2814 ########################
2815 # Target configuration #
2816 ########################
2817
2818 minikconf = find_program('scripts/minikconf.py')
2819 config_all = {}
2820 config_all_devices = {}
2821 config_all_disas = {}
2822 config_devices_mak_list = []
2823 config_devices_h = {}
2824 config_target_h = {}
2825 config_target_mak = {}
2826
2827 disassemblers = {
2828   'alpha' : ['CONFIG_ALPHA_DIS'],
2829   'avr' : ['CONFIG_AVR_DIS'],
2830   'cris' : ['CONFIG_CRIS_DIS'],
2831   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2832   'hppa' : ['CONFIG_HPPA_DIS'],
2833   'i386' : ['CONFIG_I386_DIS'],
2834   'x86_64' : ['CONFIG_I386_DIS'],
2835   'm68k' : ['CONFIG_M68K_DIS'],
2836   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2837   'mips' : ['CONFIG_MIPS_DIS'],
2838   'nios2' : ['CONFIG_NIOS2_DIS'],
2839   'or1k' : ['CONFIG_OPENRISC_DIS'],
2840   'ppc' : ['CONFIG_PPC_DIS'],
2841   'riscv' : ['CONFIG_RISCV_DIS'],
2842   'rx' : ['CONFIG_RX_DIS'],
2843   's390' : ['CONFIG_S390_DIS'],
2844   'sh4' : ['CONFIG_SH4_DIS'],
2845   'sparc' : ['CONFIG_SPARC_DIS'],
2846   'xtensa' : ['CONFIG_XTENSA_DIS'],
2847   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2848 }
2849
2850 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2851 host_kconfig = \
2852   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2853   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2854   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2855   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2856   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2857   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2858   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2859   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2860   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2861   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2862   ('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
2863   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2864   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2865   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2866
2867 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2868
2869 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2870 actual_target_dirs = []
2871 fdt_required = []
2872 foreach target : target_dirs
2873   config_target = { 'TARGET_NAME': target.split('-')[0] }
2874   if target.endswith('linux-user')
2875     if targetos != 'linux'
2876       if default_targets
2877         continue
2878       endif
2879       error('Target @0@ is only available on a Linux host'.format(target))
2880     endif
2881     config_target += { 'CONFIG_LINUX_USER': 'y' }
2882   elif target.endswith('bsd-user')
2883     if 'CONFIG_BSD' not in config_host
2884       if default_targets
2885         continue
2886       endif
2887       error('Target @0@ is only available on a BSD host'.format(target))
2888     endif
2889     config_target += { 'CONFIG_BSD_USER': 'y' }
2890   elif target.endswith('softmmu')
2891     config_target += { 'CONFIG_SOFTMMU': 'y' }
2892   endif
2893   if target.endswith('-user')
2894     config_target += {
2895       'CONFIG_USER_ONLY': 'y',
2896       'CONFIG_QEMU_INTERP_PREFIX':
2897         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2898     }
2899   endif
2900
2901   accel_kconfig = []
2902   foreach sym: accelerators
2903     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2904       config_target += { sym: 'y' }
2905       config_all += { sym: 'y' }
2906       if target in modular_tcg
2907         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2908       else
2909         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2910       endif
2911       accel_kconfig += [ sym + '=y' ]
2912     endif
2913   endforeach
2914   if accel_kconfig.length() == 0
2915     if default_targets
2916       continue
2917     endif
2918     error('No accelerator available for target @0@'.format(target))
2919   endif
2920
2921   actual_target_dirs += target
2922   config_target += keyval.load('configs/targets' / target + '.mak')
2923   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2924
2925   if 'TARGET_NEED_FDT' in config_target
2926     fdt_required += target
2927   endif
2928
2929   # Add default keys
2930   if 'TARGET_BASE_ARCH' not in config_target
2931     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2932   endif
2933   if 'TARGET_ABI_DIR' not in config_target
2934     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2935   endif
2936   if 'TARGET_BIG_ENDIAN' not in config_target
2937     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2938   endif
2939
2940   foreach k, v: disassemblers
2941     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2942       foreach sym: v
2943         config_target += { sym: 'y' }
2944         config_all_disas += { sym: 'y' }
2945       endforeach
2946     endif
2947   endforeach
2948
2949   config_target_data = configuration_data()
2950   foreach k, v: config_target
2951     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2952       # do nothing
2953     elif ignored.contains(k)
2954       # do nothing
2955     elif k == 'TARGET_BASE_ARCH'
2956       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2957       # not used to select files from sourcesets.
2958       config_target_data.set('TARGET_' + v.to_upper(), 1)
2959     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2960       config_target_data.set_quoted(k, v)
2961     elif v == 'y'
2962       config_target_data.set(k, 1)
2963     elif v == 'n'
2964       config_target_data.set(k, 0)
2965     else
2966       config_target_data.set(k, v)
2967     endif
2968   endforeach
2969   config_target_data.set('QEMU_ARCH',
2970                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2971   config_target_h += {target: configure_file(output: target + '-config-target.h',
2972                                                configuration: config_target_data)}
2973
2974   if target.endswith('-softmmu')
2975     config_input = meson.get_external_property(target, 'default')
2976     config_devices_mak = target + '-config-devices.mak'
2977     config_devices_mak = configure_file(
2978       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2979       output: config_devices_mak,
2980       depfile: config_devices_mak + '.d',
2981       capture: true,
2982       command: [minikconf,
2983                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2984                 config_devices_mak, '@DEPFILE@', '@INPUT@',
2985                 host_kconfig, accel_kconfig,
2986                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2987
2988     config_devices_data = configuration_data()
2989     config_devices = keyval.load(config_devices_mak)
2990     foreach k, v: config_devices
2991       config_devices_data.set(k, 1)
2992     endforeach
2993     config_devices_mak_list += config_devices_mak
2994     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2995                                                 configuration: config_devices_data)}
2996     config_target += config_devices
2997     config_all_devices += config_devices
2998   endif
2999   config_target_mak += {target: config_target}
3000 endforeach
3001 target_dirs = actual_target_dirs
3002
3003 # This configuration is used to build files that are shared by
3004 # multiple binaries, and then extracted out of the "common"
3005 # static_library target.
3006 #
3007 # We do not use all_sources()/all_dependencies(), because it would
3008 # build literally all source files, including devices only used by
3009 # targets that are not built for this compilation.  The CONFIG_ALL
3010 # pseudo symbol replaces it.
3011
3012 config_all += config_all_devices
3013 config_all += config_host
3014 config_all += config_all_disas
3015 config_all += {
3016   'CONFIG_XEN': xen.found(),
3017   'CONFIG_SOFTMMU': have_system,
3018   'CONFIG_USER_ONLY': have_user,
3019   'CONFIG_ALL': true,
3020 }
3021
3022 target_configs_h = []
3023 foreach target: target_dirs
3024   target_configs_h += config_target_h[target]
3025   target_configs_h += config_devices_h.get(target, [])
3026 endforeach
3027 genh += custom_target('config-poison.h',
3028                       input: [target_configs_h],
3029                       output: 'config-poison.h',
3030                       capture: true,
3031                       command: [find_program('scripts/make-config-poison.sh'),
3032                                 target_configs_h])
3033
3034 ##############
3035 # Submodules #
3036 ##############
3037
3038 capstone = not_found
3039 if not get_option('capstone').auto() or have_system or have_user
3040   capstone = dependency('capstone', version: '>=3.0.5',
3041                         method: 'pkg-config',
3042                         required: get_option('capstone'))
3043
3044   # Some versions of capstone have broken pkg-config file
3045   # that reports a wrong -I path, causing the #include to
3046   # fail later. If the system has such a broken version
3047   # do not use it.
3048   if capstone.found() and not cc.compiles('#include <capstone.h>',
3049                                           dependencies: [capstone])
3050     capstone = not_found
3051     if get_option('capstone').enabled()
3052       error('capstone requested, but it does not appear to work')
3053     endif
3054   endif
3055 endif
3056
3057 libvfio_user_dep = not_found
3058 if have_system and vfio_user_server_allowed
3059   have_internal = fs.exists(meson.current_source_dir() / 'subprojects/libvfio-user/meson.build')
3060
3061   if not have_internal
3062     error('libvfio-user source not found - please pull git submodule')
3063   endif
3064
3065   libvfio_user_proj = subproject('libvfio-user')
3066
3067   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3068 endif
3069
3070 fdt = not_found
3071 fdt_opt = get_option('fdt')
3072 if fdt_required.length() > 0 or fdt_opt == 'enabled'
3073   if fdt_opt == 'disabled'
3074     error('fdt disabled but required by targets ' + ', '.join(fdt_required))
3075   endif
3076
3077   if fdt_opt in ['enabled', 'auto', 'system']
3078     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3079     if fdt.found() and cc.links('''
3080        #include <libfdt.h>
3081        #include <libfdt_env.h>
3082        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3083          dependencies: fdt)
3084       fdt_opt = 'system'
3085     elif fdt_opt == 'system'
3086        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3087     else
3088       fdt_opt = 'internal'
3089       fdt = not_found
3090     endif
3091   endif
3092   if not fdt.found()
3093     assert(fdt_opt == 'internal')
3094     have_internal = fs.exists(meson.current_source_dir() / 'subprojects/dtc/meson.build')
3095
3096     if not have_internal
3097       error('libfdt source not found - please pull git submodule')
3098     endif
3099
3100     libfdt_proj = subproject('dtc', required: true,
3101                              default_options: ['tools=false',  'yaml=disabled',
3102                                                'python=disabled', 'default_library=static'])
3103     fdt = libfdt_proj.get_variable('libfdt_dep')
3104   endif
3105 else
3106   fdt_opt = 'disabled'
3107 endif
3108
3109 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3110 config_host_data.set('CONFIG_FDT', fdt.found())
3111 config_host_data.set('CONFIG_SLIRP', slirp.found())
3112
3113 #####################
3114 # Generated sources #
3115 #####################
3116
3117 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3118
3119 hxtool = find_program('scripts/hxtool')
3120 shaderinclude = find_program('scripts/shaderinclude.py')
3121 qapi_gen = find_program('scripts/qapi-gen.py')
3122 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3123                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3124                      meson.current_source_dir() / 'scripts/qapi/common.py',
3125                      meson.current_source_dir() / 'scripts/qapi/error.py',
3126                      meson.current_source_dir() / 'scripts/qapi/events.py',
3127                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3128                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3129                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3130                      meson.current_source_dir() / 'scripts/qapi/main.py',
3131                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3132                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3133                      meson.current_source_dir() / 'scripts/qapi/source.py',
3134                      meson.current_source_dir() / 'scripts/qapi/types.py',
3135                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3136                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3137 ]
3138
3139 tracetool = [
3140   python, files('scripts/tracetool.py'),
3141    '--backend=' + ','.join(get_option('trace_backends'))
3142 ]
3143 tracetool_depends = files(
3144   'scripts/tracetool/backend/log.py',
3145   'scripts/tracetool/backend/__init__.py',
3146   'scripts/tracetool/backend/dtrace.py',
3147   'scripts/tracetool/backend/ftrace.py',
3148   'scripts/tracetool/backend/simple.py',
3149   'scripts/tracetool/backend/syslog.py',
3150   'scripts/tracetool/backend/ust.py',
3151   'scripts/tracetool/format/ust_events_c.py',
3152   'scripts/tracetool/format/ust_events_h.py',
3153   'scripts/tracetool/format/__init__.py',
3154   'scripts/tracetool/format/d.py',
3155   'scripts/tracetool/format/simpletrace_stap.py',
3156   'scripts/tracetool/format/c.py',
3157   'scripts/tracetool/format/h.py',
3158   'scripts/tracetool/format/log_stap.py',
3159   'scripts/tracetool/format/stap.py',
3160   'scripts/tracetool/__init__.py',
3161   'scripts/tracetool/vcpu.py'
3162 )
3163
3164 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3165                     meson.current_source_dir(),
3166                     get_option('pkgversion'), meson.project_version()]
3167 qemu_version = custom_target('qemu-version.h',
3168                              output: 'qemu-version.h',
3169                              command: qemu_version_cmd,
3170                              capture: true,
3171                              build_by_default: true,
3172                              build_always_stale: true)
3173 genh += qemu_version
3174
3175 hxdep = []
3176 hx_headers = [
3177   ['qemu-options.hx', 'qemu-options.def'],
3178   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3179 ]
3180 if have_system
3181   hx_headers += [
3182     ['hmp-commands.hx', 'hmp-commands.h'],
3183     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3184   ]
3185 endif
3186 foreach d : hx_headers
3187   hxdep += custom_target(d[1],
3188                 input: files(d[0]),
3189                 output: d[1],
3190                 capture: true,
3191                 build_by_default: true, # to be removed when added to a target
3192                 command: [hxtool, '-h', '@INPUT0@'])
3193 endforeach
3194 genh += hxdep
3195
3196 ###################
3197 # Collect sources #
3198 ###################
3199
3200 authz_ss = ss.source_set()
3201 blockdev_ss = ss.source_set()
3202 block_ss = ss.source_set()
3203 chardev_ss = ss.source_set()
3204 common_ss = ss.source_set()
3205 crypto_ss = ss.source_set()
3206 hwcore_ss = ss.source_set()
3207 io_ss = ss.source_set()
3208 qmp_ss = ss.source_set()
3209 qom_ss = ss.source_set()
3210 softmmu_ss = ss.source_set()
3211 specific_fuzz_ss = ss.source_set()
3212 specific_ss = ss.source_set()
3213 stub_ss = ss.source_set()
3214 trace_ss = ss.source_set()
3215 user_ss = ss.source_set()
3216 util_ss = ss.source_set()
3217
3218 # accel modules
3219 qtest_module_ss = ss.source_set()
3220 tcg_module_ss = ss.source_set()
3221
3222 modules = {}
3223 target_modules = {}
3224 hw_arch = {}
3225 target_arch = {}
3226 target_softmmu_arch = {}
3227 target_user_arch = {}
3228
3229 ###############
3230 # Trace files #
3231 ###############
3232
3233 # TODO: add each directory to the subdirs from its own meson.build, once
3234 # we have those
3235 trace_events_subdirs = [
3236   'crypto',
3237   'qapi',
3238   'qom',
3239   'monitor',
3240   'util',
3241   'gdbstub',
3242 ]
3243 if have_linux_user
3244   trace_events_subdirs += [ 'linux-user' ]
3245 endif
3246 if have_bsd_user
3247   trace_events_subdirs += [ 'bsd-user' ]
3248 endif
3249 if have_block
3250   trace_events_subdirs += [
3251     'authz',
3252     'block',
3253     'io',
3254     'nbd',
3255     'scsi',
3256   ]
3257 endif
3258 if have_system
3259   trace_events_subdirs += [
3260     'accel/kvm',
3261     'audio',
3262     'backends',
3263     'backends/tpm',
3264     'chardev',
3265     'ebpf',
3266     'hw/9pfs',
3267     'hw/acpi',
3268     'hw/adc',
3269     'hw/alpha',
3270     'hw/arm',
3271     'hw/audio',
3272     'hw/block',
3273     'hw/block/dataplane',
3274     'hw/char',
3275     'hw/display',
3276     'hw/dma',
3277     'hw/hyperv',
3278     'hw/i2c',
3279     'hw/i386',
3280     'hw/i386/xen',
3281     'hw/i386/kvm',
3282     'hw/ide',
3283     'hw/input',
3284     'hw/intc',
3285     'hw/isa',
3286     'hw/mem',
3287     'hw/mips',
3288     'hw/misc',
3289     'hw/misc/macio',
3290     'hw/net',
3291     'hw/net/can',
3292     'hw/nubus',
3293     'hw/nvme',
3294     'hw/nvram',
3295     'hw/pci',
3296     'hw/pci-host',
3297     'hw/ppc',
3298     'hw/rdma',
3299     'hw/rdma/vmw',
3300     'hw/rtc',
3301     'hw/s390x',
3302     'hw/scsi',
3303     'hw/sd',
3304     'hw/sh4',
3305     'hw/sparc',
3306     'hw/sparc64',
3307     'hw/ssi',
3308     'hw/timer',
3309     'hw/tpm',
3310     'hw/usb',
3311     'hw/vfio',
3312     'hw/virtio',
3313     'hw/watchdog',
3314     'hw/xen',
3315     'hw/gpio',
3316     'migration',
3317     'net',
3318     'softmmu',
3319     'ui',
3320     'hw/remote',
3321   ]
3322 endif
3323 if have_system or have_user
3324   trace_events_subdirs += [
3325     'accel/tcg',
3326     'hw/core',
3327     'target/arm',
3328     'target/arm/hvf',
3329     'target/hppa',
3330     'target/i386',
3331     'target/i386/kvm',
3332     'target/mips/tcg',
3333     'target/nios2',
3334     'target/ppc',
3335     'target/riscv',
3336     'target/s390x',
3337     'target/s390x/kvm',
3338     'target/sparc',
3339   ]
3340 endif
3341
3342 vhost_user = not_found
3343 if targetos == 'linux' and have_vhost_user
3344   libvhost_user = subproject('libvhost-user')
3345   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3346 endif
3347
3348 libvduse = not_found
3349 if have_libvduse
3350   libvduse_proj = subproject('libvduse')
3351   libvduse = libvduse_proj.get_variable('libvduse_dep')
3352 endif
3353
3354 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3355 # that is filled in by qapi/.
3356 subdir('qapi')
3357 subdir('qobject')
3358 subdir('stubs')
3359 subdir('trace')
3360 subdir('util')
3361 subdir('qom')
3362 subdir('authz')
3363 subdir('crypto')
3364 subdir('ui')
3365 subdir('hw')
3366 subdir('gdbstub')
3367
3368 if enable_modules
3369   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3370   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3371 endif
3372
3373 qom_ss = qom_ss.apply(config_host, strict: false)
3374 libqom = static_library('qom', qom_ss.sources() + genh,
3375                         dependencies: [qom_ss.dependencies()],
3376                         name_suffix: 'fa')
3377 qom = declare_dependency(link_whole: libqom)
3378
3379 event_loop_base = files('event-loop-base.c')
3380 event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3381                                  build_by_default: true)
3382 event_loop_base = declare_dependency(link_whole: event_loop_base,
3383                                      dependencies: [qom])
3384
3385 stub_ss = stub_ss.apply(config_all, strict: false)
3386
3387 util_ss.add_all(trace_ss)
3388 util_ss = util_ss.apply(config_all, strict: false)
3389 libqemuutil = static_library('qemuutil',
3390                              sources: util_ss.sources() + stub_ss.sources() + genh,
3391                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3392 qemuutil = declare_dependency(link_with: libqemuutil,
3393                               sources: genh + version_res,
3394                               dependencies: [event_loop_base])
3395
3396 if have_system or have_user
3397   decodetree = generator(find_program('scripts/decodetree.py'),
3398                          output: 'decode-@BASENAME@.c.inc',
3399                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3400   subdir('libdecnumber')
3401   subdir('target')
3402 endif
3403
3404 subdir('audio')
3405 subdir('io')
3406 subdir('chardev')
3407 subdir('fsdev')
3408 subdir('dump')
3409
3410 if have_block
3411   block_ss.add(files(
3412     'block.c',
3413     'blockjob.c',
3414     'job.c',
3415     'qemu-io-cmds.c',
3416   ))
3417   if config_host_data.get('CONFIG_REPLICATION')
3418     block_ss.add(files('replication.c'))
3419   endif
3420
3421   subdir('nbd')
3422   subdir('scsi')
3423   subdir('block')
3424
3425   blockdev_ss.add(files(
3426     'blockdev.c',
3427     'blockdev-nbd.c',
3428     'iothread.c',
3429     'job-qmp.c',
3430   ), gnutls)
3431
3432   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3433   # os-win32.c does not
3434   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3435   softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3436 endif
3437
3438 common_ss.add(files('cpus-common.c'))
3439 specific_ss.add(files('cpu.c'))
3440
3441 subdir('softmmu')
3442
3443 # Work around a gcc bug/misfeature wherein constant propagation looks
3444 # through an alias:
3445 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3446 # to guess that a const variable is always zero.  Without lto, this is
3447 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3448 # without lto, not even the alias is required -- we simply use different
3449 # declarations in different compilation units.
3450 pagevary = files('page-vary-common.c')
3451 if get_option('b_lto')
3452   pagevary_flags = ['-fno-lto']
3453   if get_option('cfi')
3454     pagevary_flags += '-fno-sanitize=cfi-icall'
3455   endif
3456   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3457                             c_args: pagevary_flags)
3458   pagevary = declare_dependency(link_with: pagevary)
3459 endif
3460 common_ss.add(pagevary)
3461 specific_ss.add(files('page-vary.c'))
3462
3463 subdir('backends')
3464 subdir('disas')
3465 subdir('migration')
3466 subdir('monitor')
3467 subdir('net')
3468 subdir('replay')
3469 subdir('semihosting')
3470 subdir('stats')
3471 subdir('tcg')
3472 subdir('fpu')
3473 subdir('accel')
3474 subdir('plugins')
3475 subdir('ebpf')
3476
3477 common_user_inc = []
3478
3479 subdir('common-user')
3480 subdir('bsd-user')
3481 subdir('linux-user')
3482
3483 # needed for fuzzing binaries
3484 subdir('tests/qtest/libqos')
3485 subdir('tests/qtest/fuzz')
3486
3487 # accel modules
3488 tcg_real_module_ss = ss.source_set()
3489 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3490 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3491 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3492                                 'tcg': tcg_real_module_ss }}
3493
3494 ########################
3495 # Library dependencies #
3496 ########################
3497
3498 modinfo_collect = find_program('scripts/modinfo-collect.py')
3499 modinfo_generate = find_program('scripts/modinfo-generate.py')
3500 modinfo_files = []
3501
3502 block_mods = []
3503 softmmu_mods = []
3504 foreach d, list : modules
3505   if not (d == 'block' ? have_block : have_system)
3506     continue
3507   endif
3508
3509   foreach m, module_ss : list
3510     if enable_modules
3511       module_ss = module_ss.apply(config_all, strict: false)
3512       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3513                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3514       if d == 'block'
3515         block_mods += sl
3516       else
3517         softmmu_mods += sl
3518       endif
3519       if module_ss.sources() != []
3520         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3521         # input. Sources can be used multiple times but objects are
3522         # unique when it comes to lookup in compile_commands.json.
3523         # Depnds on a mesion version with
3524         # https://github.com/mesonbuild/meson/pull/8900
3525         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3526                                        output: d + '-' + m + '.modinfo',
3527                                        input: module_ss.sources() + genh,
3528                                        capture: true,
3529                                        command: [modinfo_collect, module_ss.sources()])
3530       endif
3531     else
3532       if d == 'block'
3533         block_ss.add_all(module_ss)
3534       else
3535         softmmu_ss.add_all(module_ss)
3536       endif
3537     endif
3538   endforeach
3539 endforeach
3540
3541 foreach d, list : target_modules
3542   foreach m, module_ss : list
3543     if enable_modules
3544       foreach target : target_dirs
3545         if target.endswith('-softmmu')
3546           config_target = config_target_mak[target]
3547           config_target += config_host
3548           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3549           c_args = ['-DNEED_CPU_H',
3550                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3551                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3552           target_module_ss = module_ss.apply(config_target, strict: false)
3553           if target_module_ss.sources() != []
3554             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3555             sl = static_library(module_name,
3556                                 [genh, target_module_ss.sources()],
3557                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3558                                 include_directories: target_inc,
3559                                 c_args: c_args,
3560                                 pic: true)
3561             softmmu_mods += sl
3562             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3563             modinfo_files += custom_target(module_name + '.modinfo',
3564                                            output: module_name + '.modinfo',
3565                                            input: target_module_ss.sources() + genh,
3566                                            capture: true,
3567                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3568           endif
3569         endif
3570       endforeach
3571     else
3572       specific_ss.add_all(module_ss)
3573     endif
3574   endforeach
3575 endforeach
3576
3577 if enable_modules
3578   foreach target : target_dirs
3579     if target.endswith('-softmmu')
3580       config_target = config_target_mak[target]
3581       config_devices_mak = target + '-config-devices.mak'
3582       modinfo_src = custom_target('modinfo-' + target + '.c',
3583                                   output: 'modinfo-' + target + '.c',
3584                                   input: modinfo_files,
3585                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3586                                   capture: true)
3587
3588       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3589       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3590
3591       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3592       hw_arch[arch].add(modinfo_dep)
3593     endif
3594   endforeach
3595 endif
3596
3597 nm = find_program('nm')
3598 undefsym = find_program('scripts/undefsym.py')
3599 block_syms = custom_target('block.syms', output: 'block.syms',
3600                              input: [libqemuutil, block_mods],
3601                              capture: true,
3602                              command: [undefsym, nm, '@INPUT@'])
3603 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3604                              input: [libqemuutil, softmmu_mods],
3605                              capture: true,
3606                              command: [undefsym, nm, '@INPUT@'])
3607
3608 authz_ss = authz_ss.apply(config_host, strict: false)
3609 libauthz = static_library('authz', authz_ss.sources() + genh,
3610                           dependencies: [authz_ss.dependencies()],
3611                           name_suffix: 'fa',
3612                           build_by_default: false)
3613
3614 authz = declare_dependency(link_whole: libauthz,
3615                            dependencies: qom)
3616
3617 crypto_ss = crypto_ss.apply(config_host, strict: false)
3618 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3619                            dependencies: [crypto_ss.dependencies()],
3620                            name_suffix: 'fa',
3621                            build_by_default: false)
3622
3623 crypto = declare_dependency(link_whole: libcrypto,
3624                             dependencies: [authz, qom])
3625
3626 io_ss = io_ss.apply(config_host, strict: false)
3627 libio = static_library('io', io_ss.sources() + genh,
3628                        dependencies: [io_ss.dependencies()],
3629                        link_with: libqemuutil,
3630                        name_suffix: 'fa',
3631                        build_by_default: false)
3632
3633 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3634
3635 libmigration = static_library('migration', sources: migration_files + genh,
3636                               name_suffix: 'fa',
3637                               build_by_default: false)
3638 migration = declare_dependency(link_with: libmigration,
3639                                dependencies: [zlib, qom, io])
3640 softmmu_ss.add(migration)
3641
3642 block_ss = block_ss.apply(config_host, strict: false)
3643 libblock = static_library('block', block_ss.sources() + genh,
3644                           dependencies: block_ss.dependencies(),
3645                           link_depends: block_syms,
3646                           name_suffix: 'fa',
3647                           build_by_default: false)
3648
3649 block = declare_dependency(link_whole: [libblock],
3650                            link_args: '@block.syms',
3651                            dependencies: [crypto, io])
3652
3653 blockdev_ss = blockdev_ss.apply(config_host, strict: false)
3654 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3655                              dependencies: blockdev_ss.dependencies(),
3656                              name_suffix: 'fa',
3657                              build_by_default: false)
3658
3659 blockdev = declare_dependency(link_whole: [libblockdev],
3660                               dependencies: [block, event_loop_base])
3661
3662 qmp_ss = qmp_ss.apply(config_host, strict: false)
3663 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3664                         dependencies: qmp_ss.dependencies(),
3665                         name_suffix: 'fa',
3666                         build_by_default: false)
3667
3668 qmp = declare_dependency(link_whole: [libqmp])
3669
3670 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3671                             name_suffix: 'fa',
3672                             dependencies: chardev_ss.dependencies(),
3673                             build_by_default: false)
3674
3675 chardev = declare_dependency(link_whole: libchardev)
3676
3677 hwcore_ss = hwcore_ss.apply(config_host, strict: false)
3678 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3679                            name_suffix: 'fa',
3680                            build_by_default: false)
3681 hwcore = declare_dependency(link_whole: libhwcore)
3682 common_ss.add(hwcore)
3683
3684 ###########
3685 # Targets #
3686 ###########
3687
3688 emulator_modules = []
3689 foreach m : block_mods + softmmu_mods
3690   emulator_modules += shared_module(m.name(),
3691                 build_by_default: true,
3692                 name_prefix: '',
3693                 link_whole: m,
3694                 install: true,
3695                 install_dir: qemu_moddir)
3696 endforeach
3697 if emulator_modules.length() > 0
3698   alias_target('modules', emulator_modules)
3699 endif
3700
3701 softmmu_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3702 common_ss.add(qom, qemuutil)
3703
3704 common_ss.add_all(when: 'CONFIG_SOFTMMU', if_true: [softmmu_ss])
3705 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3706
3707 common_all = common_ss.apply(config_all, strict: false)
3708 common_all = static_library('common',
3709                             build_by_default: false,
3710                             sources: common_all.sources() + genh,
3711                             include_directories: common_user_inc,
3712                             implicit_include_directories: false,
3713                             dependencies: common_all.dependencies(),
3714                             name_suffix: 'fa')
3715
3716 feature_to_c = find_program('scripts/feature_to_c.sh')
3717
3718 if targetos == 'darwin'
3719   entitlement = find_program('scripts/entitlement.sh')
3720 endif
3721
3722 emulators = {}
3723 foreach target : target_dirs
3724   config_target = config_target_mak[target]
3725   target_name = config_target['TARGET_NAME']
3726   target_base_arch = config_target['TARGET_BASE_ARCH']
3727   arch_srcs = [config_target_h[target]]
3728   arch_deps = []
3729   c_args = ['-DNEED_CPU_H',
3730             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3731             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3732   link_args = emulator_link_args
3733
3734   config_target += config_host
3735   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3736   if targetos == 'linux'
3737     target_inc += include_directories('linux-headers', is_system: true)
3738   endif
3739   if target.endswith('-softmmu')
3740     target_type='system'
3741     t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3742     arch_srcs += t.sources()
3743     arch_deps += t.dependencies()
3744
3745     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3746     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3747     arch_srcs += hw.sources()
3748     arch_deps += hw.dependencies()
3749
3750     arch_srcs += config_devices_h[target]
3751     link_args += ['@block.syms', '@qemu.syms']
3752   else
3753     abi = config_target['TARGET_ABI_DIR']
3754     target_type='user'
3755     target_inc += common_user_inc
3756     if target_base_arch in target_user_arch
3757       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3758       arch_srcs += t.sources()
3759       arch_deps += t.dependencies()
3760     endif
3761     if 'CONFIG_LINUX_USER' in config_target
3762       base_dir = 'linux-user'
3763     endif
3764     if 'CONFIG_BSD_USER' in config_target
3765       base_dir = 'bsd-user'
3766       target_inc += include_directories('bsd-user/' / targetos)
3767       target_inc += include_directories('bsd-user/host/' / host_arch)
3768       dir = base_dir / abi
3769       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3770     endif
3771     target_inc += include_directories(
3772       base_dir,
3773       base_dir / abi,
3774     )
3775     if 'CONFIG_LINUX_USER' in config_target
3776       dir = base_dir / abi
3777       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3778       if config_target.has_key('TARGET_SYSTBL_ABI')
3779         arch_srcs += \
3780           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3781                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3782       endif
3783     endif
3784   endif
3785
3786   if 'TARGET_XML_FILES' in config_target
3787     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3788                                 output: target + '-gdbstub-xml.c',
3789                                 input: files(config_target['TARGET_XML_FILES'].split()),
3790                                 command: [feature_to_c, '@INPUT@'],
3791                                 capture: true)
3792     arch_srcs += gdbstub_xml
3793   endif
3794
3795   t = target_arch[target_base_arch].apply(config_target, strict: false)
3796   arch_srcs += t.sources()
3797   arch_deps += t.dependencies()
3798
3799   target_common = common_ss.apply(config_target, strict: false)
3800   objects = common_all.extract_objects(target_common.sources())
3801   deps = target_common.dependencies()
3802
3803   target_specific = specific_ss.apply(config_target, strict: false)
3804   arch_srcs += target_specific.sources()
3805   arch_deps += target_specific.dependencies()
3806
3807   lib = static_library('qemu-' + target,
3808                  sources: arch_srcs + genh,
3809                  dependencies: arch_deps,
3810                  objects: objects,
3811                  include_directories: target_inc,
3812                  c_args: c_args,
3813                  build_by_default: false,
3814                  name_suffix: 'fa')
3815
3816   if target.endswith('-softmmu')
3817     execs = [{
3818       'name': 'qemu-system-' + target_name,
3819       'win_subsystem': 'console',
3820       'sources': files('softmmu/main.c'),
3821       'dependencies': []
3822     }]
3823     if targetos == 'windows' and (sdl.found() or gtk.found())
3824       execs += [{
3825         'name': 'qemu-system-' + target_name + 'w',
3826         'win_subsystem': 'windows',
3827         'sources': files('softmmu/main.c'),
3828         'dependencies': []
3829       }]
3830     endif
3831     if get_option('fuzzing')
3832       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3833       execs += [{
3834         'name': 'qemu-fuzz-' + target_name,
3835         'win_subsystem': 'console',
3836         'sources': specific_fuzz.sources(),
3837         'dependencies': specific_fuzz.dependencies(),
3838       }]
3839     endif
3840   else
3841     execs = [{
3842       'name': 'qemu-' + target_name,
3843       'win_subsystem': 'console',
3844       'sources': [],
3845       'dependencies': []
3846     }]
3847   endif
3848   foreach exe: execs
3849     exe_name = exe['name']
3850     if targetos == 'darwin'
3851       exe_name += '-unsigned'
3852     endif
3853
3854     emulator = executable(exe_name, exe['sources'],
3855                install: true,
3856                c_args: c_args,
3857                dependencies: arch_deps + deps + exe['dependencies'],
3858                objects: lib.extract_all_objects(recursive: true),
3859                link_language: link_language,
3860                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3861                link_args: link_args,
3862                win_subsystem: exe['win_subsystem'])
3863
3864     if targetos == 'darwin'
3865       icon = 'pc-bios/qemu.rsrc'
3866       build_input = [emulator, files(icon)]
3867       install_input = [
3868         get_option('bindir') / exe_name,
3869         meson.current_source_dir() / icon
3870       ]
3871       if 'CONFIG_HVF' in config_target
3872         entitlements = 'accel/hvf/entitlements.plist'
3873         build_input += files(entitlements)
3874         install_input += meson.current_source_dir() / entitlements
3875       endif
3876
3877       emulators += {exe['name'] : custom_target(exe['name'],
3878                    input: build_input,
3879                    output: exe['name'],
3880                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3881       }
3882
3883       meson.add_install_script(entitlement, '--install',
3884                                get_option('bindir') / exe['name'],
3885                                install_input)
3886     else
3887       emulators += {exe['name']: emulator}
3888     endif
3889
3890     if stap.found()
3891       foreach stp: [
3892         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3893         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3894         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3895         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3896       ]
3897         custom_target(exe['name'] + stp['ext'],
3898                       input: trace_events_all,
3899                       output: exe['name'] + stp['ext'],
3900                       install: stp['install'],
3901                       install_dir: get_option('datadir') / 'systemtap/tapset',
3902                       command: [
3903                         tracetool, '--group=all', '--format=' + stp['fmt'],
3904                         '--binary=' + stp['bin'],
3905                         '--target-name=' + target_name,
3906                         '--target-type=' + target_type,
3907                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3908                         '@INPUT@', '@OUTPUT@'
3909                       ],
3910                       depend_files: tracetool_depends)
3911       endforeach
3912     endif
3913   endforeach
3914 endforeach
3915
3916 # Other build targets
3917
3918 if 'CONFIG_PLUGIN' in config_host
3919   install_headers('include/qemu/qemu-plugin.h')
3920 endif
3921
3922 subdir('qga')
3923
3924 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3925 # when we don't build tools or system
3926 if xkbcommon.found()
3927   # used for the update-keymaps target, so include rules even if !have_tools
3928   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3929                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3930 endif
3931
3932 if have_tools
3933   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3934              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3935   qemu_io = executable('qemu-io', files('qemu-io.c'),
3936              dependencies: [block, qemuutil], install: true)
3937   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3938                dependencies: [blockdev, qemuutil, gnutls, selinux],
3939                install: true)
3940
3941   subdir('storage-daemon')
3942   subdir('contrib/rdmacm-mux')
3943   subdir('contrib/elf2dmp')
3944
3945   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3946              dependencies: qemuutil,
3947              install: true)
3948
3949   if have_vhost_user
3950     subdir('contrib/vhost-user-blk')
3951     subdir('contrib/vhost-user-gpu')
3952     subdir('contrib/vhost-user-input')
3953     subdir('contrib/vhost-user-scsi')
3954   endif
3955
3956   if targetos == 'linux'
3957     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3958                dependencies: [qemuutil, libcap_ng],
3959                install: true,
3960                install_dir: get_option('libexecdir'))
3961
3962     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3963                dependencies: [authz, crypto, io, qom, qemuutil,
3964                               libcap_ng, mpathpersist],
3965                install: true)
3966   endif
3967
3968   if have_ivshmem
3969     subdir('contrib/ivshmem-client')
3970     subdir('contrib/ivshmem-server')
3971   endif
3972 endif
3973
3974 subdir('scripts')
3975 subdir('tools')
3976 subdir('pc-bios')
3977 subdir('docs')
3978 subdir('tests')
3979 if gtk.found()
3980   subdir('po')
3981 endif
3982
3983 if host_machine.system() == 'windows'
3984   nsis_cmd = [
3985     find_program('scripts/nsis.py'),
3986     '@OUTPUT@',
3987     get_option('prefix'),
3988     meson.current_source_dir(),
3989     glib_pc.get_variable('bindir'),
3990     host_machine.cpu(),
3991     '--',
3992     '-DDISPLAYVERSION=' + meson.project_version(),
3993   ]
3994   if build_docs
3995     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3996   endif
3997   if gtk.found()
3998     nsis_cmd += '-DCONFIG_GTK=y'
3999   endif
4000
4001   nsis = custom_target('nsis',
4002                        output: 'qemu-setup-' + meson.project_version() + '.exe',
4003                        input: files('qemu.nsi'),
4004                        build_always_stale: true,
4005                        command: nsis_cmd + ['@INPUT@'])
4006   alias_target('installer', nsis)
4007 endif
4008
4009 #########################
4010 # Configuration summary #
4011 #########################
4012
4013 # Directories
4014 summary_info = {}
4015 summary_info += {'Install prefix':    get_option('prefix')}
4016 summary_info += {'BIOS directory':    qemu_datadir}
4017 pathsep = targetos == 'windows' ? ';' : ':'
4018 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
4019 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
4020 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
4021 summary_info += {'module directory':  qemu_moddir}
4022 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
4023 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
4024 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
4025 if targetos != 'windows'
4026   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
4027   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
4028 else
4029   summary_info += {'local state directory': 'queried at runtime'}
4030 endif
4031 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4032 summary_info += {'Build directory':   meson.current_build_dir()}
4033 summary_info += {'Source path':       meson.current_source_dir()}
4034 summary_info += {'GIT submodules':    config_host['GIT_SUBMODULES']}
4035 summary(summary_info, bool_yn: true, section: 'Directories')
4036
4037 # Host binaries
4038 summary_info = {}
4039 summary_info += {'git':               config_host['GIT']}
4040 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4041 summary_info += {'sphinx-build':      sphinx_build}
4042 if config_host.has_key('HAVE_GDB_BIN')
4043   summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
4044 endif
4045 summary_info += {'iasl':              iasl}
4046 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4047 if targetos == 'windows' and have_ga
4048   summary_info += {'wixl':            wixl}
4049 endif
4050 if slirp.found() and have_system
4051   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4052 endif
4053 summary(summary_info, bool_yn: true, section: 'Host binaries')
4054
4055 # Configurable features
4056 summary_info = {}
4057 summary_info += {'Documentation':     build_docs}
4058 summary_info += {'system-mode emulation': have_system}
4059 summary_info += {'user-mode emulation': have_user}
4060 summary_info += {'block layer':       have_block}
4061 summary_info += {'Install blobs':     get_option('install_blobs')}
4062 summary_info += {'module support':    enable_modules}
4063 if enable_modules
4064   summary_info += {'alternative module path': get_option('module_upgrades')}
4065 endif
4066 summary_info += {'fuzzing support':   get_option('fuzzing')}
4067 if have_system
4068   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4069 endif
4070 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4071 if 'simple' in get_option('trace_backends')
4072   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4073 endif
4074 summary_info += {'D-Bus display':     dbus_display}
4075 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4076 summary_info += {'vhost-kernel support': have_vhost_kernel}
4077 summary_info += {'vhost-net support': have_vhost_net}
4078 summary_info += {'vhost-user support': have_vhost_user}
4079 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4080 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4081 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4082 summary_info += {'build guest agent': have_ga}
4083 summary(summary_info, bool_yn: true, section: 'Configurable features')
4084
4085 # Compilation information
4086 summary_info = {}
4087 summary_info += {'host CPU':          cpu}
4088 summary_info += {'host endianness':   build_machine.endian()}
4089 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4090 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4091 if link_language == 'cpp'
4092   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4093 else
4094   summary_info += {'C++ compiler':      false}
4095 endif
4096 if targetos == 'darwin'
4097   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4098 endif
4099 option_cflags = (get_option('debug') ? ['-g'] : [])
4100 if get_option('optimization') != 'plain'
4101   option_cflags += ['-O' + get_option('optimization')]
4102 endif
4103 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4104 if link_language == 'cpp'
4105   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4106 endif
4107 if targetos == 'darwin'
4108   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4109 endif
4110 link_args = get_option(link_language + '_link_args')
4111 if link_args.length() > 0
4112   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4113 endif
4114 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4115 if 'cpp' in all_languages
4116   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4117 endif
4118 if 'objc' in all_languages
4119   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4120 endif
4121 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4122 summary_info += {'profiler':          get_option('profiler')}
4123 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4124 summary_info += {'PIE':               get_option('b_pie')}
4125 summary_info += {'static build':      config_host.has_key('CONFIG_STATIC')}
4126 summary_info += {'malloc trim support': has_malloc_trim}
4127 summary_info += {'membarrier':        have_membarrier}
4128 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4129 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4130 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4131 summary_info += {'memory allocator':  get_option('malloc')}
4132 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4133 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4134 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4135 if get_option('gprof')
4136   gprof_info = 'YES (deprecated)'
4137 else
4138   gprof_info = get_option('gprof')
4139 endif
4140 summary_info += {'gprof':             gprof_info}
4141 summary_info += {'gcov':              get_option('b_coverage')}
4142 summary_info += {'thread sanitizer':  get_option('tsan')}
4143 summary_info += {'CFI support':       get_option('cfi')}
4144 if get_option('cfi')
4145   summary_info += {'CFI debug support': get_option('cfi_debug')}
4146 endif
4147 summary_info += {'strip binaries':    get_option('strip')}
4148 summary_info += {'sparse':            sparse}
4149 summary_info += {'mingw32 support':   targetos == 'windows'}
4150 summary(summary_info, bool_yn: true, section: 'Compilation')
4151
4152 # snarf the cross-compilation information for tests
4153 summary_info = {}
4154 have_cross = false
4155 foreach target: target_dirs
4156   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4157   if fs.exists(tcg_mak)
4158     config_cross_tcg = keyval.load(tcg_mak)
4159     if 'CC' in config_cross_tcg
4160       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4161       have_cross = true
4162     endif
4163   endif
4164 endforeach
4165 if have_cross
4166   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4167 endif
4168
4169 # Targets and accelerators
4170 summary_info = {}
4171 if have_system
4172   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4173   summary_info += {'HAX support':       config_all.has_key('CONFIG_HAX')}
4174   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4175   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4176   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4177   summary_info += {'Xen support':       xen.found()}
4178   if xen.found()
4179     summary_info += {'xen ctrl version':  xen.version()}
4180   endif
4181   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4182 endif
4183 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4184 if config_all.has_key('CONFIG_TCG')
4185   if get_option('tcg_interpreter')
4186     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4187   else
4188     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4189   endif
4190   summary_info += {'TCG plugins': config_host.has_key('CONFIG_PLUGIN')}
4191   summary_info += {'TCG debug enabled': config_host.has_key('CONFIG_DEBUG_TCG')}
4192 endif
4193 summary_info += {'target list':       ' '.join(target_dirs)}
4194 if have_system
4195   summary_info += {'default devices':   get_option('default_devices')}
4196   summary_info += {'out of process emulation': multiprocess_allowed}
4197   summary_info += {'vfio-user server': vfio_user_server_allowed}
4198 endif
4199 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4200
4201 # Block layer
4202 summary_info = {}
4203 summary_info += {'coroutine backend': coroutine_backend}
4204 summary_info += {'coroutine pool':    have_coroutine_pool}
4205 if have_block
4206   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4207   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4208   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4209   summary_info += {'VirtFS (9P) support':    have_virtfs}
4210   summary_info += {'VirtFS (9P) Proxy Helper support': have_virtfs_proxy_helper}
4211   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4212   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4213   summary_info += {'bochs support':     get_option('bochs').allowed()}
4214   summary_info += {'cloop support':     get_option('cloop').allowed()}
4215   summary_info += {'dmg support':       get_option('dmg').allowed()}
4216   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4217   summary_info += {'vdi support':       get_option('vdi').allowed()}
4218   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4219   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4220   summary_info += {'vpc support':       get_option('vpc').allowed()}
4221   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4222   summary_info += {'qed support':       get_option('qed').allowed()}
4223   summary_info += {'parallels support': get_option('parallels').allowed()}
4224   summary_info += {'FUSE exports':      fuse}
4225   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4226 endif
4227 summary(summary_info, bool_yn: true, section: 'Block layer support')
4228
4229 # Crypto
4230 summary_info = {}
4231 summary_info += {'TLS priority':      get_option('tls_priority')}
4232 summary_info += {'GNUTLS support':    gnutls}
4233 if gnutls.found()
4234   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4235 endif
4236 summary_info += {'libgcrypt':         gcrypt}
4237 summary_info += {'nettle':            nettle}
4238 if nettle.found()
4239    summary_info += {'  XTS':             xts != 'private'}
4240 endif
4241 summary_info += {'AF_ALG support':    have_afalg}
4242 summary_info += {'rng-none':          get_option('rng_none')}
4243 summary_info += {'Linux keyring':     have_keyring}
4244 summary(summary_info, bool_yn: true, section: 'Crypto')
4245
4246 # Libraries
4247 summary_info = {}
4248 if targetos == 'darwin'
4249   summary_info += {'Cocoa support':           cocoa}
4250   summary_info += {'vmnet.framework support': vmnet}
4251 endif
4252 summary_info += {'SDL support':       sdl}
4253 summary_info += {'SDL image support': sdl_image}
4254 summary_info += {'GTK support':       gtk}
4255 summary_info += {'pixman':            pixman}
4256 summary_info += {'VTE support':       vte}
4257 summary_info += {'slirp support':     slirp}
4258 summary_info += {'libtasn1':          tasn1}
4259 summary_info += {'PAM':               pam}
4260 summary_info += {'iconv support':     iconv}
4261 summary_info += {'curses support':    curses}
4262 summary_info += {'virgl support':     virgl}
4263 summary_info += {'blkio support':     blkio}
4264 summary_info += {'curl support':      curl}
4265 summary_info += {'Multipath support': mpathpersist}
4266 summary_info += {'PNG support':       png}
4267 summary_info += {'VNC support':       vnc}
4268 if vnc.found()
4269   summary_info += {'VNC SASL support':  sasl}
4270   summary_info += {'VNC JPEG support':  jpeg}
4271 endif
4272 if targetos not in ['darwin', 'haiku', 'windows']
4273   summary_info += {'OSS support':     oss}
4274   summary_info += {'sndio support':   sndio}
4275 elif targetos == 'darwin'
4276   summary_info += {'CoreAudio support': coreaudio}
4277 elif targetos == 'windows'
4278   summary_info += {'DirectSound support': dsound}
4279 endif
4280 if targetos == 'linux'
4281   summary_info += {'ALSA support':    alsa}
4282   summary_info += {'PulseAudio support': pulse}
4283 endif
4284 summary_info += {'Pipewire support':   pipewire}
4285 summary_info += {'JACK support':      jack}
4286 summary_info += {'brlapi support':    brlapi}
4287 summary_info += {'vde support':       vde}
4288 summary_info += {'netmap support':    have_netmap}
4289 summary_info += {'l2tpv3 support':    have_l2tpv3}
4290 summary_info += {'Linux AIO support': libaio}
4291 summary_info += {'Linux io_uring support': linux_io_uring}
4292 summary_info += {'ATTR/XATTR support': libattr}
4293 summary_info += {'RDMA support':      rdma}
4294 summary_info += {'PVRDMA support':    have_pvrdma}
4295 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4296 summary_info += {'libcap-ng support': libcap_ng}
4297 summary_info += {'bpf support':       libbpf}
4298 summary_info += {'spice protocol support': spice_protocol}
4299 if spice_protocol.found()
4300   summary_info += {'  spice server support': spice}
4301 endif
4302 summary_info += {'rbd support':       rbd}
4303 summary_info += {'smartcard support': cacard}
4304 summary_info += {'U2F support':       u2f}
4305 summary_info += {'libusb':            libusb}
4306 summary_info += {'usb net redir':     usbredir}
4307 summary_info += {'OpenGL support (epoxy)': opengl}
4308 summary_info += {'GBM':               gbm}
4309 summary_info += {'libiscsi support':  libiscsi}
4310 summary_info += {'libnfs support':    libnfs}
4311 if targetos == 'windows'
4312   if have_ga
4313     summary_info += {'QGA VSS support':   have_qga_vss}
4314   endif
4315 endif
4316 summary_info += {'seccomp support':   seccomp}
4317 summary_info += {'GlusterFS support': glusterfs}
4318 summary_info += {'TPM support':       have_tpm}
4319 summary_info += {'libssh support':    libssh}
4320 summary_info += {'lzo support':       lzo}
4321 summary_info += {'snappy support':    snappy}
4322 summary_info += {'bzip2 support':     libbzip2}
4323 summary_info += {'lzfse support':     liblzfse}
4324 summary_info += {'zstd support':      zstd}
4325 summary_info += {'NUMA host support': numa}
4326 summary_info += {'capstone':          capstone}
4327 summary_info += {'libpmem support':   libpmem}
4328 summary_info += {'libdaxctl support': libdaxctl}
4329 summary_info += {'libudev':           libudev}
4330 # Dummy dependency, keep .found()
4331 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4332 summary_info += {'selinux':           selinux}
4333 summary_info += {'libdw':             libdw}
4334 summary(summary_info, bool_yn: true, section: 'Dependencies')
4335
4336 if not supported_cpus.contains(cpu)
4337   message()
4338   warning('SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!')
4339   message()
4340   message('CPU host architecture ' + cpu + ' support is not currently maintained.')
4341   message('The QEMU project intends to remove support for this host CPU in')
4342   message('a future release if nobody volunteers to maintain it and to')
4343   message('provide a build host for our continuous integration setup.')
4344   message('configure has succeeded and you can continue to build, but')
4345   message('if you care about QEMU on this platform you should contact')
4346   message('us upstream at qemu-devel@nongnu.org.')
4347 endif
4348
4349 if not supported_oses.contains(targetos)
4350   message()
4351   warning('WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!')
4352   message()
4353   message('Host OS ' + targetos + 'support is not currently maintained.')
4354   message('The QEMU project intends to remove support for this host OS in')
4355   message('a future release if nobody volunteers to maintain it and to')
4356   message('provide a build host for our continuous integration setup.')
4357   message('configure has succeeded and you can continue to build, but')
4358   message('if you care about QEMU on this platform you should contact')
4359   message('us upstream at qemu-devel@nongnu.org.')
4360 endif