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 config_host_data.set('CONFIG_CURL', curl.found())
2110 config_host_data.set('CONFIG_CURSES', curses.found())
2111 config_host_data.set('CONFIG_GBM', gbm.found())
2112 config_host_data.set('CONFIG_GIO', gio.found())
2113 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2114 if glusterfs.found()
2115   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2116   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2117   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2118   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2119   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2120   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2121 endif
2122 config_host_data.set('CONFIG_GTK', gtk.found())
2123 config_host_data.set('CONFIG_VTE', vte.found())
2124 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2125 config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
2126 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2127 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2128 config_host_data.set('CONFIG_EBPF', libbpf.found())
2129 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2130 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2131 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2132 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2133 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2134 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2135 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2136 config_host_data.set('CONFIG_MODULES', enable_modules)
2137 config_host_data.set('CONFIG_NUMA', numa.found())
2138 if numa.found()
2139   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2140                        cc.has_function('numa_has_preferred_many',
2141                                        dependencies: numa))
2142 endif
2143 config_host_data.set('CONFIG_OPENGL', opengl.found())
2144 config_host_data.set('CONFIG_PROFILER', get_option('profiler'))
2145 config_host_data.set('CONFIG_RBD', rbd.found())
2146 config_host_data.set('CONFIG_RDMA', rdma.found())
2147 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2148 config_host_data.set('CONFIG_SDL', sdl.found())
2149 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2150 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2151 if seccomp.found()
2152   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2153 endif
2154 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2155 config_host_data.set('CONFIG_TPM', have_tpm)
2156 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2157 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2158 config_host_data.set('CONFIG_VDE', vde.found())
2159 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2160 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2161 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2162 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2163 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2164 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2165 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2166 config_host_data.set('CONFIG_VMNET', vmnet.found())
2167 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2168 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2169 config_host_data.set('CONFIG_PNG', png.found())
2170 config_host_data.set('CONFIG_VNC', vnc.found())
2171 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2172 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2173 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2174 config_host_data.set('CONFIG_VTE', vte.found())
2175 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2176 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2177 config_host_data.set('CONFIG_GETTID', has_gettid)
2178 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2179 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2180 config_host_data.set('CONFIG_TASN1', tasn1.found())
2181 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2182 config_host_data.set('CONFIG_NETTLE', nettle.found())
2183 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2184 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2185 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2186 config_host_data.set('CONFIG_STATX', has_statx)
2187 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2188 config_host_data.set('CONFIG_ZSTD', zstd.found())
2189 config_host_data.set('CONFIG_FUSE', fuse.found())
2190 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2191 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2192 if spice_protocol.found()
2193 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2194 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2195 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2196 endif
2197 config_host_data.set('CONFIG_SPICE', spice.found())
2198 config_host_data.set('CONFIG_X11', x11.found())
2199 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2200 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2201 config_host_data.set('CONFIG_SELINUX', selinux.found())
2202 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2203 config_host_data.set('CONFIG_LIBDW', libdw.found())
2204 if xen.found()
2205   # protect from xen.version() having less than three components
2206   xen_version = xen.version().split('.') + ['0', '0']
2207   xen_ctrl_version = xen_version[0] + \
2208     ('0' + xen_version[1]).substring(-2) + \
2209     ('0' + xen_version[2]).substring(-2)
2210   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2211 endif
2212 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2213 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2214 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2215 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2216
2217 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2218 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2219
2220 have_coroutine_pool = get_option('coroutine_pool')
2221 if get_option('debug_stack_usage') and have_coroutine_pool
2222   message('Disabling coroutine pool to measure stack usage')
2223   have_coroutine_pool = false
2224 endif
2225 config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2226 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2227 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2228 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2229 config_host_data.set('CONFIG_GPROF', get_option('gprof'))
2230 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2231 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2232 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2233
2234 # has_header
2235 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2236 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2237 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2238 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2239 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2240 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2241 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2242 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2243 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2244 if targetos == 'windows'
2245   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2246 endif
2247
2248 # has_function
2249 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2250 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2251 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2252 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2253 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2254 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2255 # Note that we need to specify prefix: here to avoid incorrectly
2256 # thinking that Windows has posix_memalign()
2257 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2258 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2259 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2260 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2261 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2262 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2263 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2264 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2265 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2266 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2267 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2268 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2269 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2270 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2271 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2272 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2273 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2274 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2275 if rbd.found()
2276   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2277                        cc.has_function('rbd_namespace_exists',
2278                                        dependencies: rbd,
2279                                        prefix: '#include <rbd/librbd.h>'))
2280 endif
2281 if rdma.found()
2282   config_host_data.set('HAVE_IBV_ADVISE_MR',
2283                        cc.has_function('ibv_advise_mr',
2284                                        dependencies: rdma,
2285                                        prefix: '#include <infiniband/verbs.h>'))
2286 endif
2287
2288 have_asan_fiber = false
2289 if get_option('sanitizers') and \
2290    not cc.has_function('__sanitizer_start_switch_fiber',
2291                          args: '-fsanitize=address',
2292                          prefix: '#include <sanitizer/asan_interface.h>')
2293   warning('Missing ASAN due to missing fiber annotation interface')
2294   warning('Without code annotation, the report may be inferior.')
2295 else
2296   have_asan_fiber = true
2297 endif
2298 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2299
2300 # has_header_symbol
2301 config_host_data.set('CONFIG_BLKZONED',
2302                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2303 config_host_data.set('CONFIG_EPOLL_CREATE1',
2304                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2305 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2306                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2307                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2308 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2309                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2310 config_host_data.set('CONFIG_FIEMAP',
2311                      cc.has_header('linux/fiemap.h') and
2312                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2313 config_host_data.set('CONFIG_GETRANDOM',
2314                      cc.has_function('getrandom') and
2315                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2316 config_host_data.set('CONFIG_INOTIFY',
2317                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2318 config_host_data.set('CONFIG_INOTIFY1',
2319                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2320 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2321                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2322 config_host_data.set('CONFIG_RTNETLINK',
2323                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2324 config_host_data.set('CONFIG_SYSMACROS',
2325                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2326 config_host_data.set('HAVE_OPTRESET',
2327                      cc.has_header_symbol('getopt.h', 'optreset'))
2328 config_host_data.set('HAVE_IPPROTO_MPTCP',
2329                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2330
2331 # has_member
2332 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2333                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2334                                    prefix: '#include <signal.h>'))
2335 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2336                      cc.has_member('struct stat', 'st_atim',
2337                                    prefix: '#include <sys/stat.h>'))
2338 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2339                      cc.has_member('struct blk_zone', 'capacity',
2340                                    prefix: '#include <linux/blkzoned.h>'))
2341
2342 # has_type
2343 config_host_data.set('CONFIG_IOVEC',
2344                      cc.has_type('struct iovec',
2345                                  prefix: '#include <sys/uio.h>'))
2346 config_host_data.set('HAVE_UTMPX',
2347                      cc.has_type('struct utmpx',
2348                                  prefix: '#include <utmpx.h>'))
2349
2350 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2351   #include <sys/eventfd.h>
2352   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2353 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2354   #include <unistd.h>
2355   int main(void) {
2356   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2357   return fdatasync(0);
2358   #else
2359   #error Not supported
2360   #endif
2361   }'''))
2362
2363 has_madvise = cc.links(gnu_source_prefix + '''
2364   #include <sys/types.h>
2365   #include <sys/mman.h>
2366   #include <stddef.h>
2367   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2368 missing_madvise_proto = false
2369 if has_madvise
2370   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2371   # but forget to prototype it. In this case, has_madvise will be true (the
2372   # test program links despite a compile warning). To detect the
2373   # missing-prototype case, we try again with a definitely-bogus prototype.
2374   # This will only compile if the system headers don't provide the prototype;
2375   # otherwise the conflicting prototypes will cause a compiler error.
2376   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2377     #include <sys/types.h>
2378     #include <sys/mman.h>
2379     #include <stddef.h>
2380     extern int madvise(int);
2381     int main(void) { return madvise(0); }''')
2382 endif
2383 config_host_data.set('CONFIG_MADVISE', has_madvise)
2384 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2385
2386 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2387   #include <sys/mman.h>
2388   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2389 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2390   #include <fcntl.h>
2391   #if !defined(AT_EMPTY_PATH)
2392   # error missing definition
2393   #else
2394   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2395   #endif'''))
2396 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2397   #include <sys/mman.h>
2398   #include <stddef.h>
2399   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2400
2401 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2402   #include <pthread.h>
2403
2404   static void *f(void *p) { return NULL; }
2405   int main(void)
2406   {
2407     pthread_t thread;
2408     pthread_create(&thread, 0, f, 0);
2409     pthread_setname_np(thread, "QEMU");
2410     return 0;
2411   }''', dependencies: threads))
2412 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2413   #include <pthread.h>
2414
2415   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2416   int main(void)
2417   {
2418     pthread_t thread;
2419     pthread_create(&thread, 0, f, 0);
2420     return 0;
2421   }''', dependencies: threads))
2422 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2423   #include <pthread.h>
2424   #include <pthread_np.h>
2425
2426   static void *f(void *p) { return NULL; }
2427   int main(void)
2428   {
2429     pthread_t thread;
2430     pthread_create(&thread, 0, f, 0);
2431     pthread_set_name_np(thread, "QEMU");
2432     return 0;
2433   }''', dependencies: threads))
2434 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2435   #include <pthread.h>
2436   #include <time.h>
2437
2438   int main(void)
2439   {
2440     pthread_condattr_t attr
2441     pthread_condattr_init(&attr);
2442     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2443     return 0;
2444   }''', dependencies: threads))
2445 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2446   #include <pthread.h>
2447
2448   static void *f(void *p) { return NULL; }
2449   int main(void)
2450   {
2451     int setsize = CPU_ALLOC_SIZE(64);
2452     pthread_t thread;
2453     cpu_set_t *cpuset;
2454     pthread_create(&thread, 0, f, 0);
2455     cpuset = CPU_ALLOC(64);
2456     CPU_ZERO_S(setsize, cpuset);
2457     pthread_setaffinity_np(thread, setsize, cpuset);
2458     pthread_getaffinity_np(thread, setsize, cpuset);
2459     CPU_FREE(cpuset);
2460     return 0;
2461   }''', dependencies: threads))
2462 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2463   #include <sys/signalfd.h>
2464   #include <stddef.h>
2465   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2466 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2467   #include <unistd.h>
2468   #include <fcntl.h>
2469   #include <limits.h>
2470
2471   int main(void)
2472   {
2473     int len, fd = 0;
2474     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2475     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2476     return 0;
2477   }'''))
2478
2479 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2480   #include <sys/mman.h>
2481   int main(void) {
2482     return mlockall(MCL_FUTURE);
2483   }'''))
2484
2485 have_l2tpv3 = false
2486 if get_option('l2tpv3').allowed() and have_system
2487   have_l2tpv3 = cc.has_type('struct mmsghdr',
2488     prefix: gnu_source_prefix + '''
2489       #include <sys/socket.h>
2490       #include <linux/ip.h>''')
2491 endif
2492 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2493
2494 have_netmap = false
2495 if get_option('netmap').allowed() and have_system
2496   have_netmap = cc.compiles('''
2497     #include <inttypes.h>
2498     #include <net/if.h>
2499     #include <net/netmap.h>
2500     #include <net/netmap_user.h>
2501     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2502     #error
2503     #endif
2504     int main(void) { return 0; }''')
2505   if not have_netmap and get_option('netmap').enabled()
2506     error('Netmap headers not available')
2507   endif
2508 endif
2509 config_host_data.set('CONFIG_NETMAP', have_netmap)
2510
2511 # Work around a system header bug with some kernel/XFS header
2512 # versions where they both try to define 'struct fsxattr':
2513 # xfs headers will not try to redefine structs from linux headers
2514 # if this macro is set.
2515 config_host_data.set('HAVE_FSXATTR', cc.links('''
2516   #include <linux/fs.h>
2517   struct fsxattr foo;
2518   int main(void) {
2519     return 0;
2520   }'''))
2521
2522 # Some versions of Mac OS X incorrectly define SIZE_MAX
2523 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2524     #include <stdint.h>
2525     #include <stdio.h>
2526     int main(void) {
2527         return printf("%zu", SIZE_MAX);
2528     }''', args: ['-Werror']))
2529
2530 # See if 64-bit atomic operations are supported.
2531 # Note that without __atomic builtins, we can only
2532 # assume atomic loads/stores max at pointer size.
2533 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2534   #include <stdint.h>
2535   int main(void)
2536   {
2537     uint64_t x = 0, y = 0;
2538     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2539     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2540     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2541     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2542     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2543     return 0;
2544   }'''))
2545
2546 has_int128 = cc.links('''
2547   __int128_t a;
2548   __uint128_t b;
2549   int main (void) {
2550     a = a + b;
2551     b = a * b;
2552     a = a * a;
2553     return 0;
2554   }''')
2555
2556 config_host_data.set('CONFIG_INT128', has_int128)
2557
2558 if has_int128
2559   # "do we have 128-bit atomics which are handled inline and specifically not
2560   # via libatomic". The reason we can't use libatomic is documented in the
2561   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2562   # We only care about these operations on 16-byte aligned pointers, so
2563   # force 16-byte alignment of the pointer, which may be greater than
2564   # __alignof(unsigned __int128) for the host.
2565   atomic_test_128 = '''
2566     int main(int ac, char **av) {
2567       unsigned __int128 *p = __builtin_assume_aligned(av[ac - 1], 16);
2568       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2569       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2570       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2571       return 0;
2572     }'''
2573   has_atomic128 = cc.links(atomic_test_128)
2574
2575   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2576
2577   if not has_atomic128
2578     # Even with __builtin_assume_aligned, the above test may have failed
2579     # without optimization enabled.  Try again with optimizations locally
2580     # enabled for the function.  See
2581     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2582     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2583     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2584
2585     if not has_atomic128_opt
2586       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2587         int main(void)
2588         {
2589           unsigned __int128 x = 0, y = 0;
2590           __sync_val_compare_and_swap_16(&x, y, x);
2591           return 0;
2592         }
2593       '''))
2594     endif
2595   endif
2596 endif
2597
2598 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2599   #include <sys/auxv.h>
2600   int main(void) {
2601     return getauxval(AT_HWCAP) == 0;
2602   }'''))
2603
2604 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2605   #include <linux/usbdevice_fs.h>
2606
2607   #ifndef USBDEVFS_GET_CAPABILITIES
2608   #error "USBDEVFS_GET_CAPABILITIES undefined"
2609   #endif
2610
2611   #ifndef USBDEVFS_DISCONNECT_CLAIM
2612   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2613   #endif
2614
2615   int main(void) { return 0; }'''))
2616
2617 have_keyring = get_option('keyring') \
2618   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2619   .require(cc.compiles('''
2620     #include <errno.h>
2621     #include <asm/unistd.h>
2622     #include <linux/keyctl.h>
2623     #include <sys/syscall.h>
2624     #include <unistd.h>
2625     int main(void) {
2626         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2627     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2628 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2629
2630 have_cpuid_h = cc.links('''
2631   #include <cpuid.h>
2632   int main(void) {
2633     unsigned a, b, c, d;
2634     unsigned max = __get_cpuid_max(0, 0);
2635
2636     if (max >= 1) {
2637         __cpuid(1, a, b, c, d);
2638     }
2639
2640     if (max >= 7) {
2641         __cpuid_count(7, 0, a, b, c, d);
2642     }
2643
2644     return 0;
2645   }''')
2646 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2647
2648 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2649   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2650   .require(cc.links('''
2651     #include <cpuid.h>
2652     #include <immintrin.h>
2653     static int __attribute__((target("avx2"))) bar(void *a) {
2654       __m256i x = *(__m256i *)a;
2655       return _mm256_testz_si256(x, x);
2656     }
2657     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2658   '''), error_message: 'AVX2 not available').allowed())
2659
2660 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2661   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2662   .require(cc.links('''
2663     #include <cpuid.h>
2664     #include <immintrin.h>
2665     static int __attribute__((target("avx512f"))) bar(void *a) {
2666       __m512i x = *(__m512i *)a;
2667       return _mm512_test_epi64_mask(x, x);
2668     }
2669     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2670   '''), error_message: 'AVX512F not available').allowed())
2671
2672 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2673   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2674   .require(cc.links('''
2675     #include <cpuid.h>
2676     #include <immintrin.h>
2677     static int __attribute__((target("avx512bw"))) bar(void *a) {
2678       __m512i *x = a;
2679       __m512i res= _mm512_abs_epi8(*x);
2680       return res[1];
2681     }
2682     int main(int argc, char *argv[]) { return bar(argv[0]); }
2683   '''), error_message: 'AVX512BW not available').allowed())
2684
2685 have_pvrdma = get_option('pvrdma') \
2686   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2687   .require(cc.compiles(gnu_source_prefix + '''
2688     #include <sys/mman.h>
2689     int main(void)
2690     {
2691       char buf = 0;
2692       void *addr = &buf;
2693       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2694
2695       return 0;
2696     }'''), error_message: 'PVRDMA requires mremap').allowed()
2697
2698 if have_pvrdma
2699   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2700     #include <infiniband/verbs.h>
2701     int main(void)
2702     {
2703       struct ibv_mr *mr;
2704       struct ibv_pd *pd = NULL;
2705       size_t length = 10;
2706       uint64_t iova = 0;
2707       int access = 0;
2708       void *addr = NULL;
2709
2710       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2711       ibv_dereg_mr(mr);
2712       return 0;
2713     }'''))
2714 endif
2715
2716 if get_option('membarrier').disabled()
2717   have_membarrier = false
2718 elif targetos == 'windows'
2719   have_membarrier = true
2720 elif targetos == 'linux'
2721   have_membarrier = cc.compiles('''
2722     #include <linux/membarrier.h>
2723     #include <sys/syscall.h>
2724     #include <unistd.h>
2725     #include <stdlib.h>
2726     int main(void) {
2727         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2728         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2729         exit(0);
2730     }''')
2731 endif
2732 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2733   .require(have_membarrier, error_message: 'membarrier system call not available') \
2734   .allowed())
2735
2736 have_afalg = get_option('crypto_afalg') \
2737   .require(cc.compiles(gnu_source_prefix + '''
2738     #include <errno.h>
2739     #include <sys/types.h>
2740     #include <sys/socket.h>
2741     #include <linux/if_alg.h>
2742     int main(void) {
2743       int sock;
2744       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2745       return sock;
2746     }
2747   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2748 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2749
2750 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2751   'linux/vm_sockets.h', 'AF_VSOCK',
2752   prefix: '#include <sys/socket.h>',
2753 ))
2754
2755 have_vss = false
2756 have_vss_sdk = false # old xp/2003 SDK
2757 if targetos == 'windows' and link_language == 'cpp'
2758   have_vss = cxx.compiles('''
2759     #define __MIDL_user_allocate_free_DEFINED__
2760     #include <vss.h>
2761     int main(void) { return VSS_CTX_BACKUP; }''')
2762   have_vss_sdk = cxx.has_header('vscoordint.h')
2763 endif
2764 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2765
2766 foreach k, v: config_host
2767   if k.startswith('CONFIG_')
2768     config_host_data.set(k, v == 'y' ? 1 : v)
2769   endif
2770 endforeach
2771
2772 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2773 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2774 if targetos == 'windows'
2775   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2776     #include <stdio.h>
2777     int main(void) {
2778       _lock_file(NULL);
2779       _unlock_file(NULL);
2780       return 0;
2781     }''', name: '_lock_file and _unlock_file'))
2782 endif
2783
2784 if targetos == 'windows'
2785   mingw_has_setjmp_longjmp = cc.links('''
2786     #include <setjmp.h>
2787     int main(void) {
2788       /*
2789        * These functions are not available in setjmp header, but may be
2790        * available at link time, from libmingwex.a.
2791        */
2792       extern int __mingw_setjmp(jmp_buf);
2793       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2794       jmp_buf env;
2795       __mingw_setjmp(env);
2796       __mingw_longjmp(env, 0);
2797     }
2798   ''', name: 'mingw setjmp and longjmp')
2799
2800   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2801     error('mingw must provide setjmp/longjmp for windows-arm64')
2802   endif
2803 endif
2804
2805 ########################
2806 # Target configuration #
2807 ########################
2808
2809 minikconf = find_program('scripts/minikconf.py')
2810 config_all = {}
2811 config_all_devices = {}
2812 config_all_disas = {}
2813 config_devices_mak_list = []
2814 config_devices_h = {}
2815 config_target_h = {}
2816 config_target_mak = {}
2817
2818 disassemblers = {
2819   'alpha' : ['CONFIG_ALPHA_DIS'],
2820   'avr' : ['CONFIG_AVR_DIS'],
2821   'cris' : ['CONFIG_CRIS_DIS'],
2822   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2823   'hppa' : ['CONFIG_HPPA_DIS'],
2824   'i386' : ['CONFIG_I386_DIS'],
2825   'x86_64' : ['CONFIG_I386_DIS'],
2826   'm68k' : ['CONFIG_M68K_DIS'],
2827   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2828   'mips' : ['CONFIG_MIPS_DIS'],
2829   'nios2' : ['CONFIG_NIOS2_DIS'],
2830   'or1k' : ['CONFIG_OPENRISC_DIS'],
2831   'ppc' : ['CONFIG_PPC_DIS'],
2832   'riscv' : ['CONFIG_RISCV_DIS'],
2833   'rx' : ['CONFIG_RX_DIS'],
2834   's390' : ['CONFIG_S390_DIS'],
2835   'sh4' : ['CONFIG_SH4_DIS'],
2836   'sparc' : ['CONFIG_SPARC_DIS'],
2837   'xtensa' : ['CONFIG_XTENSA_DIS'],
2838   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2839 }
2840
2841 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2842 host_kconfig = \
2843   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2844   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2845   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2846   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2847   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2848   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2849   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2850   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2851   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2852   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2853   ('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
2854   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2855   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2856   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2857
2858 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2859
2860 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2861 actual_target_dirs = []
2862 fdt_required = []
2863 foreach target : target_dirs
2864   config_target = { 'TARGET_NAME': target.split('-')[0] }
2865   if target.endswith('linux-user')
2866     if targetos != 'linux'
2867       if default_targets
2868         continue
2869       endif
2870       error('Target @0@ is only available on a Linux host'.format(target))
2871     endif
2872     config_target += { 'CONFIG_LINUX_USER': 'y' }
2873   elif target.endswith('bsd-user')
2874     if 'CONFIG_BSD' not in config_host
2875       if default_targets
2876         continue
2877       endif
2878       error('Target @0@ is only available on a BSD host'.format(target))
2879     endif
2880     config_target += { 'CONFIG_BSD_USER': 'y' }
2881   elif target.endswith('softmmu')
2882     config_target += { 'CONFIG_SOFTMMU': 'y' }
2883   endif
2884   if target.endswith('-user')
2885     config_target += {
2886       'CONFIG_USER_ONLY': 'y',
2887       'CONFIG_QEMU_INTERP_PREFIX':
2888         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2889     }
2890   endif
2891
2892   accel_kconfig = []
2893   foreach sym: accelerators
2894     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2895       config_target += { sym: 'y' }
2896       config_all += { sym: 'y' }
2897       if target in modular_tcg
2898         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2899       else
2900         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2901       endif
2902       accel_kconfig += [ sym + '=y' ]
2903     endif
2904   endforeach
2905   if accel_kconfig.length() == 0
2906     if default_targets
2907       continue
2908     endif
2909     error('No accelerator available for target @0@'.format(target))
2910   endif
2911
2912   actual_target_dirs += target
2913   config_target += keyval.load('configs/targets' / target + '.mak')
2914   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2915
2916   if 'TARGET_NEED_FDT' in config_target
2917     fdt_required += target
2918   endif
2919
2920   # Add default keys
2921   if 'TARGET_BASE_ARCH' not in config_target
2922     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2923   endif
2924   if 'TARGET_ABI_DIR' not in config_target
2925     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2926   endif
2927   if 'TARGET_BIG_ENDIAN' not in config_target
2928     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2929   endif
2930
2931   foreach k, v: disassemblers
2932     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2933       foreach sym: v
2934         config_target += { sym: 'y' }
2935         config_all_disas += { sym: 'y' }
2936       endforeach
2937     endif
2938   endforeach
2939
2940   config_target_data = configuration_data()
2941   foreach k, v: config_target
2942     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2943       # do nothing
2944     elif ignored.contains(k)
2945       # do nothing
2946     elif k == 'TARGET_BASE_ARCH'
2947       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2948       # not used to select files from sourcesets.
2949       config_target_data.set('TARGET_' + v.to_upper(), 1)
2950     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2951       config_target_data.set_quoted(k, v)
2952     elif v == 'y'
2953       config_target_data.set(k, 1)
2954     elif v == 'n'
2955       config_target_data.set(k, 0)
2956     else
2957       config_target_data.set(k, v)
2958     endif
2959   endforeach
2960   config_target_data.set('QEMU_ARCH',
2961                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2962   config_target_h += {target: configure_file(output: target + '-config-target.h',
2963                                                configuration: config_target_data)}
2964
2965   if target.endswith('-softmmu')
2966     config_input = meson.get_external_property(target, 'default')
2967     config_devices_mak = target + '-config-devices.mak'
2968     config_devices_mak = configure_file(
2969       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2970       output: config_devices_mak,
2971       depfile: config_devices_mak + '.d',
2972       capture: true,
2973       command: [minikconf,
2974                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2975                 config_devices_mak, '@DEPFILE@', '@INPUT@',
2976                 host_kconfig, accel_kconfig,
2977                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2978
2979     config_devices_data = configuration_data()
2980     config_devices = keyval.load(config_devices_mak)
2981     foreach k, v: config_devices
2982       config_devices_data.set(k, 1)
2983     endforeach
2984     config_devices_mak_list += config_devices_mak
2985     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2986                                                 configuration: config_devices_data)}
2987     config_target += config_devices
2988     config_all_devices += config_devices
2989   endif
2990   config_target_mak += {target: config_target}
2991 endforeach
2992 target_dirs = actual_target_dirs
2993
2994 # This configuration is used to build files that are shared by
2995 # multiple binaries, and then extracted out of the "common"
2996 # static_library target.
2997 #
2998 # We do not use all_sources()/all_dependencies(), because it would
2999 # build literally all source files, including devices only used by
3000 # targets that are not built for this compilation.  The CONFIG_ALL
3001 # pseudo symbol replaces it.
3002
3003 config_all += config_all_devices
3004 config_all += config_host
3005 config_all += config_all_disas
3006 config_all += {
3007   'CONFIG_XEN': xen.found(),
3008   'CONFIG_SOFTMMU': have_system,
3009   'CONFIG_USER_ONLY': have_user,
3010   'CONFIG_ALL': true,
3011 }
3012
3013 target_configs_h = []
3014 foreach target: target_dirs
3015   target_configs_h += config_target_h[target]
3016   target_configs_h += config_devices_h.get(target, [])
3017 endforeach
3018 genh += custom_target('config-poison.h',
3019                       input: [target_configs_h],
3020                       output: 'config-poison.h',
3021                       capture: true,
3022                       command: [find_program('scripts/make-config-poison.sh'),
3023                                 target_configs_h])
3024
3025 ##############
3026 # Submodules #
3027 ##############
3028
3029 capstone = not_found
3030 if not get_option('capstone').auto() or have_system or have_user
3031   capstone = dependency('capstone', version: '>=3.0.5',
3032                         method: 'pkg-config',
3033                         required: get_option('capstone'))
3034
3035   # Some versions of capstone have broken pkg-config file
3036   # that reports a wrong -I path, causing the #include to
3037   # fail later. If the system has such a broken version
3038   # do not use it.
3039   if capstone.found() and not cc.compiles('#include <capstone.h>',
3040                                           dependencies: [capstone])
3041     capstone = not_found
3042     if get_option('capstone').enabled()
3043       error('capstone requested, but it does not appear to work')
3044     endif
3045   endif
3046 endif
3047
3048 libvfio_user_dep = not_found
3049 if have_system and vfio_user_server_allowed
3050   have_internal = fs.exists(meson.current_source_dir() / 'subprojects/libvfio-user/meson.build')
3051
3052   if not have_internal
3053     error('libvfio-user source not found - please pull git submodule')
3054   endif
3055
3056   libvfio_user_proj = subproject('libvfio-user')
3057
3058   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3059 endif
3060
3061 fdt = not_found
3062 fdt_opt = get_option('fdt')
3063 if fdt_required.length() > 0 or fdt_opt == 'enabled'
3064   if fdt_opt == 'disabled'
3065     error('fdt disabled but required by targets ' + ', '.join(fdt_required))
3066   endif
3067
3068   if fdt_opt in ['enabled', 'auto', 'system']
3069     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3070     if fdt.found() and cc.links('''
3071        #include <libfdt.h>
3072        #include <libfdt_env.h>
3073        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3074          dependencies: fdt)
3075       fdt_opt = 'system'
3076     elif fdt_opt == 'system'
3077        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3078     else
3079       fdt_opt = 'internal'
3080       fdt = not_found
3081     endif
3082   endif
3083   if not fdt.found()
3084     assert(fdt_opt == 'internal')
3085     have_internal = fs.exists(meson.current_source_dir() / 'subprojects/dtc/meson.build')
3086
3087     if not have_internal
3088       error('libfdt source not found - please pull git submodule')
3089     endif
3090
3091     libfdt_proj = subproject('dtc', required: true,
3092                              default_options: ['tools=false',  'yaml=disabled',
3093                                                'python=disabled', 'default_library=static'])
3094     fdt = libfdt_proj.get_variable('libfdt_dep')
3095   endif
3096 else
3097   fdt_opt = 'disabled'
3098 endif
3099
3100 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3101 config_host_data.set('CONFIG_FDT', fdt.found())
3102 config_host_data.set('CONFIG_SLIRP', slirp.found())
3103
3104 #####################
3105 # Generated sources #
3106 #####################
3107
3108 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3109
3110 hxtool = find_program('scripts/hxtool')
3111 shaderinclude = find_program('scripts/shaderinclude.py')
3112 qapi_gen = find_program('scripts/qapi-gen.py')
3113 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3114                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3115                      meson.current_source_dir() / 'scripts/qapi/common.py',
3116                      meson.current_source_dir() / 'scripts/qapi/error.py',
3117                      meson.current_source_dir() / 'scripts/qapi/events.py',
3118                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3119                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3120                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3121                      meson.current_source_dir() / 'scripts/qapi/main.py',
3122                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3123                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3124                      meson.current_source_dir() / 'scripts/qapi/source.py',
3125                      meson.current_source_dir() / 'scripts/qapi/types.py',
3126                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3127                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3128 ]
3129
3130 tracetool = [
3131   python, files('scripts/tracetool.py'),
3132    '--backend=' + ','.join(get_option('trace_backends'))
3133 ]
3134 tracetool_depends = files(
3135   'scripts/tracetool/backend/log.py',
3136   'scripts/tracetool/backend/__init__.py',
3137   'scripts/tracetool/backend/dtrace.py',
3138   'scripts/tracetool/backend/ftrace.py',
3139   'scripts/tracetool/backend/simple.py',
3140   'scripts/tracetool/backend/syslog.py',
3141   'scripts/tracetool/backend/ust.py',
3142   'scripts/tracetool/format/ust_events_c.py',
3143   'scripts/tracetool/format/ust_events_h.py',
3144   'scripts/tracetool/format/__init__.py',
3145   'scripts/tracetool/format/d.py',
3146   'scripts/tracetool/format/simpletrace_stap.py',
3147   'scripts/tracetool/format/c.py',
3148   'scripts/tracetool/format/h.py',
3149   'scripts/tracetool/format/log_stap.py',
3150   'scripts/tracetool/format/stap.py',
3151   'scripts/tracetool/__init__.py',
3152   'scripts/tracetool/vcpu.py'
3153 )
3154
3155 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3156                     meson.current_source_dir(),
3157                     get_option('pkgversion'), meson.project_version()]
3158 qemu_version = custom_target('qemu-version.h',
3159                              output: 'qemu-version.h',
3160                              command: qemu_version_cmd,
3161                              capture: true,
3162                              build_by_default: true,
3163                              build_always_stale: true)
3164 genh += qemu_version
3165
3166 hxdep = []
3167 hx_headers = [
3168   ['qemu-options.hx', 'qemu-options.def'],
3169   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3170 ]
3171 if have_system
3172   hx_headers += [
3173     ['hmp-commands.hx', 'hmp-commands.h'],
3174     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3175   ]
3176 endif
3177 foreach d : hx_headers
3178   hxdep += custom_target(d[1],
3179                 input: files(d[0]),
3180                 output: d[1],
3181                 capture: true,
3182                 build_by_default: true, # to be removed when added to a target
3183                 command: [hxtool, '-h', '@INPUT0@'])
3184 endforeach
3185 genh += hxdep
3186
3187 ###################
3188 # Collect sources #
3189 ###################
3190
3191 authz_ss = ss.source_set()
3192 blockdev_ss = ss.source_set()
3193 block_ss = ss.source_set()
3194 chardev_ss = ss.source_set()
3195 common_ss = ss.source_set()
3196 crypto_ss = ss.source_set()
3197 hwcore_ss = ss.source_set()
3198 io_ss = ss.source_set()
3199 qmp_ss = ss.source_set()
3200 qom_ss = ss.source_set()
3201 softmmu_ss = ss.source_set()
3202 specific_fuzz_ss = ss.source_set()
3203 specific_ss = ss.source_set()
3204 stub_ss = ss.source_set()
3205 trace_ss = ss.source_set()
3206 user_ss = ss.source_set()
3207 util_ss = ss.source_set()
3208
3209 # accel modules
3210 qtest_module_ss = ss.source_set()
3211 tcg_module_ss = ss.source_set()
3212
3213 modules = {}
3214 target_modules = {}
3215 hw_arch = {}
3216 target_arch = {}
3217 target_softmmu_arch = {}
3218 target_user_arch = {}
3219
3220 ###############
3221 # Trace files #
3222 ###############
3223
3224 # TODO: add each directory to the subdirs from its own meson.build, once
3225 # we have those
3226 trace_events_subdirs = [
3227   'crypto',
3228   'qapi',
3229   'qom',
3230   'monitor',
3231   'util',
3232   'gdbstub',
3233 ]
3234 if have_linux_user
3235   trace_events_subdirs += [ 'linux-user' ]
3236 endif
3237 if have_bsd_user
3238   trace_events_subdirs += [ 'bsd-user' ]
3239 endif
3240 if have_block
3241   trace_events_subdirs += [
3242     'authz',
3243     'block',
3244     'io',
3245     'nbd',
3246     'scsi',
3247   ]
3248 endif
3249 if have_system
3250   trace_events_subdirs += [
3251     'accel/kvm',
3252     'audio',
3253     'backends',
3254     'backends/tpm',
3255     'chardev',
3256     'ebpf',
3257     'hw/9pfs',
3258     'hw/acpi',
3259     'hw/adc',
3260     'hw/alpha',
3261     'hw/arm',
3262     'hw/audio',
3263     'hw/block',
3264     'hw/block/dataplane',
3265     'hw/char',
3266     'hw/display',
3267     'hw/dma',
3268     'hw/hyperv',
3269     'hw/i2c',
3270     'hw/i386',
3271     'hw/i386/xen',
3272     'hw/i386/kvm',
3273     'hw/ide',
3274     'hw/input',
3275     'hw/intc',
3276     'hw/isa',
3277     'hw/mem',
3278     'hw/mips',
3279     'hw/misc',
3280     'hw/misc/macio',
3281     'hw/net',
3282     'hw/net/can',
3283     'hw/nubus',
3284     'hw/nvme',
3285     'hw/nvram',
3286     'hw/pci',
3287     'hw/pci-host',
3288     'hw/ppc',
3289     'hw/rdma',
3290     'hw/rdma/vmw',
3291     'hw/rtc',
3292     'hw/s390x',
3293     'hw/scsi',
3294     'hw/sd',
3295     'hw/sh4',
3296     'hw/sparc',
3297     'hw/sparc64',
3298     'hw/ssi',
3299     'hw/timer',
3300     'hw/tpm',
3301     'hw/usb',
3302     'hw/vfio',
3303     'hw/virtio',
3304     'hw/watchdog',
3305     'hw/xen',
3306     'hw/gpio',
3307     'migration',
3308     'net',
3309     'softmmu',
3310     'ui',
3311     'hw/remote',
3312   ]
3313 endif
3314 if have_system or have_user
3315   trace_events_subdirs += [
3316     'accel/tcg',
3317     'hw/core',
3318     'target/arm',
3319     'target/arm/hvf',
3320     'target/hppa',
3321     'target/i386',
3322     'target/i386/kvm',
3323     'target/mips/tcg',
3324     'target/nios2',
3325     'target/ppc',
3326     'target/riscv',
3327     'target/s390x',
3328     'target/s390x/kvm',
3329     'target/sparc',
3330   ]
3331 endif
3332
3333 vhost_user = not_found
3334 if targetos == 'linux' and have_vhost_user
3335   libvhost_user = subproject('libvhost-user')
3336   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3337 endif
3338
3339 libvduse = not_found
3340 if have_libvduse
3341   libvduse_proj = subproject('libvduse')
3342   libvduse = libvduse_proj.get_variable('libvduse_dep')
3343 endif
3344
3345 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3346 # that is filled in by qapi/.
3347 subdir('qapi')
3348 subdir('qobject')
3349 subdir('stubs')
3350 subdir('trace')
3351 subdir('util')
3352 subdir('qom')
3353 subdir('authz')
3354 subdir('crypto')
3355 subdir('ui')
3356 subdir('hw')
3357 subdir('gdbstub')
3358
3359 if enable_modules
3360   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3361   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3362 endif
3363
3364 qom_ss = qom_ss.apply(config_host, strict: false)
3365 libqom = static_library('qom', qom_ss.sources() + genh,
3366                         dependencies: [qom_ss.dependencies()],
3367                         name_suffix: 'fa')
3368 qom = declare_dependency(link_whole: libqom)
3369
3370 event_loop_base = files('event-loop-base.c')
3371 event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3372                                  build_by_default: true)
3373 event_loop_base = declare_dependency(link_whole: event_loop_base,
3374                                      dependencies: [qom])
3375
3376 stub_ss = stub_ss.apply(config_all, strict: false)
3377
3378 util_ss.add_all(trace_ss)
3379 util_ss = util_ss.apply(config_all, strict: false)
3380 libqemuutil = static_library('qemuutil',
3381                              sources: util_ss.sources() + stub_ss.sources() + genh,
3382                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3383 qemuutil = declare_dependency(link_with: libqemuutil,
3384                               sources: genh + version_res,
3385                               dependencies: [event_loop_base])
3386
3387 if have_system or have_user
3388   decodetree = generator(find_program('scripts/decodetree.py'),
3389                          output: 'decode-@BASENAME@.c.inc',
3390                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3391   subdir('libdecnumber')
3392   subdir('target')
3393 endif
3394
3395 subdir('audio')
3396 subdir('io')
3397 subdir('chardev')
3398 subdir('fsdev')
3399 subdir('dump')
3400
3401 if have_block
3402   block_ss.add(files(
3403     'block.c',
3404     'blockjob.c',
3405     'job.c',
3406     'qemu-io-cmds.c',
3407   ))
3408   if config_host_data.get('CONFIG_REPLICATION')
3409     block_ss.add(files('replication.c'))
3410   endif
3411
3412   subdir('nbd')
3413   subdir('scsi')
3414   subdir('block')
3415
3416   blockdev_ss.add(files(
3417     'blockdev.c',
3418     'blockdev-nbd.c',
3419     'iothread.c',
3420     'job-qmp.c',
3421   ), gnutls)
3422
3423   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3424   # os-win32.c does not
3425   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3426   softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3427 endif
3428
3429 common_ss.add(files('cpus-common.c'))
3430 specific_ss.add(files('cpu.c'))
3431
3432 subdir('softmmu')
3433
3434 # Work around a gcc bug/misfeature wherein constant propagation looks
3435 # through an alias:
3436 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3437 # to guess that a const variable is always zero.  Without lto, this is
3438 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3439 # without lto, not even the alias is required -- we simply use different
3440 # declarations in different compilation units.
3441 pagevary = files('page-vary-common.c')
3442 if get_option('b_lto')
3443   pagevary_flags = ['-fno-lto']
3444   if get_option('cfi')
3445     pagevary_flags += '-fno-sanitize=cfi-icall'
3446   endif
3447   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3448                             c_args: pagevary_flags)
3449   pagevary = declare_dependency(link_with: pagevary)
3450 endif
3451 common_ss.add(pagevary)
3452 specific_ss.add(files('page-vary.c'))
3453
3454 subdir('backends')
3455 subdir('disas')
3456 subdir('migration')
3457 subdir('monitor')
3458 subdir('net')
3459 subdir('replay')
3460 subdir('semihosting')
3461 subdir('stats')
3462 subdir('tcg')
3463 subdir('fpu')
3464 subdir('accel')
3465 subdir('plugins')
3466 subdir('ebpf')
3467
3468 common_user_inc = []
3469
3470 subdir('common-user')
3471 subdir('bsd-user')
3472 subdir('linux-user')
3473
3474 # needed for fuzzing binaries
3475 subdir('tests/qtest/libqos')
3476 subdir('tests/qtest/fuzz')
3477
3478 # accel modules
3479 tcg_real_module_ss = ss.source_set()
3480 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3481 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3482 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3483                                 'tcg': tcg_real_module_ss }}
3484
3485 ########################
3486 # Library dependencies #
3487 ########################
3488
3489 modinfo_collect = find_program('scripts/modinfo-collect.py')
3490 modinfo_generate = find_program('scripts/modinfo-generate.py')
3491 modinfo_files = []
3492
3493 block_mods = []
3494 softmmu_mods = []
3495 foreach d, list : modules
3496   if not (d == 'block' ? have_block : have_system)
3497     continue
3498   endif
3499
3500   foreach m, module_ss : list
3501     if enable_modules
3502       module_ss = module_ss.apply(config_all, strict: false)
3503       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3504                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3505       if d == 'block'
3506         block_mods += sl
3507       else
3508         softmmu_mods += sl
3509       endif
3510       if module_ss.sources() != []
3511         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3512         # input. Sources can be used multiple times but objects are
3513         # unique when it comes to lookup in compile_commands.json.
3514         # Depnds on a mesion version with
3515         # https://github.com/mesonbuild/meson/pull/8900
3516         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3517                                        output: d + '-' + m + '.modinfo',
3518                                        input: module_ss.sources() + genh,
3519                                        capture: true,
3520                                        command: [modinfo_collect, module_ss.sources()])
3521       endif
3522     else
3523       if d == 'block'
3524         block_ss.add_all(module_ss)
3525       else
3526         softmmu_ss.add_all(module_ss)
3527       endif
3528     endif
3529   endforeach
3530 endforeach
3531
3532 foreach d, list : target_modules
3533   foreach m, module_ss : list
3534     if enable_modules
3535       foreach target : target_dirs
3536         if target.endswith('-softmmu')
3537           config_target = config_target_mak[target]
3538           config_target += config_host
3539           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3540           c_args = ['-DNEED_CPU_H',
3541                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3542                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3543           target_module_ss = module_ss.apply(config_target, strict: false)
3544           if target_module_ss.sources() != []
3545             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3546             sl = static_library(module_name,
3547                                 [genh, target_module_ss.sources()],
3548                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3549                                 include_directories: target_inc,
3550                                 c_args: c_args,
3551                                 pic: true)
3552             softmmu_mods += sl
3553             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3554             modinfo_files += custom_target(module_name + '.modinfo',
3555                                            output: module_name + '.modinfo',
3556                                            input: target_module_ss.sources() + genh,
3557                                            capture: true,
3558                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3559           endif
3560         endif
3561       endforeach
3562     else
3563       specific_ss.add_all(module_ss)
3564     endif
3565   endforeach
3566 endforeach
3567
3568 if enable_modules
3569   foreach target : target_dirs
3570     if target.endswith('-softmmu')
3571       config_target = config_target_mak[target]
3572       config_devices_mak = target + '-config-devices.mak'
3573       modinfo_src = custom_target('modinfo-' + target + '.c',
3574                                   output: 'modinfo-' + target + '.c',
3575                                   input: modinfo_files,
3576                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3577                                   capture: true)
3578
3579       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3580       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3581
3582       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3583       hw_arch[arch].add(modinfo_dep)
3584     endif
3585   endforeach
3586 endif
3587
3588 nm = find_program('nm')
3589 undefsym = find_program('scripts/undefsym.py')
3590 block_syms = custom_target('block.syms', output: 'block.syms',
3591                              input: [libqemuutil, block_mods],
3592                              capture: true,
3593                              command: [undefsym, nm, '@INPUT@'])
3594 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3595                              input: [libqemuutil, softmmu_mods],
3596                              capture: true,
3597                              command: [undefsym, nm, '@INPUT@'])
3598
3599 authz_ss = authz_ss.apply(config_host, strict: false)
3600 libauthz = static_library('authz', authz_ss.sources() + genh,
3601                           dependencies: [authz_ss.dependencies()],
3602                           name_suffix: 'fa',
3603                           build_by_default: false)
3604
3605 authz = declare_dependency(link_whole: libauthz,
3606                            dependencies: qom)
3607
3608 crypto_ss = crypto_ss.apply(config_host, strict: false)
3609 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3610                            dependencies: [crypto_ss.dependencies()],
3611                            name_suffix: 'fa',
3612                            build_by_default: false)
3613
3614 crypto = declare_dependency(link_whole: libcrypto,
3615                             dependencies: [authz, qom])
3616
3617 io_ss = io_ss.apply(config_host, strict: false)
3618 libio = static_library('io', io_ss.sources() + genh,
3619                        dependencies: [io_ss.dependencies()],
3620                        link_with: libqemuutil,
3621                        name_suffix: 'fa',
3622                        build_by_default: false)
3623
3624 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3625
3626 libmigration = static_library('migration', sources: migration_files + genh,
3627                               name_suffix: 'fa',
3628                               build_by_default: false)
3629 migration = declare_dependency(link_with: libmigration,
3630                                dependencies: [zlib, qom, io])
3631 softmmu_ss.add(migration)
3632
3633 block_ss = block_ss.apply(config_host, strict: false)
3634 libblock = static_library('block', block_ss.sources() + genh,
3635                           dependencies: block_ss.dependencies(),
3636                           link_depends: block_syms,
3637                           name_suffix: 'fa',
3638                           build_by_default: false)
3639
3640 block = declare_dependency(link_whole: [libblock],
3641                            link_args: '@block.syms',
3642                            dependencies: [crypto, io])
3643
3644 blockdev_ss = blockdev_ss.apply(config_host, strict: false)
3645 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3646                              dependencies: blockdev_ss.dependencies(),
3647                              name_suffix: 'fa',
3648                              build_by_default: false)
3649
3650 blockdev = declare_dependency(link_whole: [libblockdev],
3651                               dependencies: [block, event_loop_base])
3652
3653 qmp_ss = qmp_ss.apply(config_host, strict: false)
3654 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3655                         dependencies: qmp_ss.dependencies(),
3656                         name_suffix: 'fa',
3657                         build_by_default: false)
3658
3659 qmp = declare_dependency(link_whole: [libqmp])
3660
3661 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3662                             name_suffix: 'fa',
3663                             dependencies: chardev_ss.dependencies(),
3664                             build_by_default: false)
3665
3666 chardev = declare_dependency(link_whole: libchardev)
3667
3668 hwcore_ss = hwcore_ss.apply(config_host, strict: false)
3669 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3670                            name_suffix: 'fa',
3671                            build_by_default: false)
3672 hwcore = declare_dependency(link_whole: libhwcore)
3673 common_ss.add(hwcore)
3674
3675 ###########
3676 # Targets #
3677 ###########
3678
3679 emulator_modules = []
3680 foreach m : block_mods + softmmu_mods
3681   emulator_modules += shared_module(m.name(),
3682                 build_by_default: true,
3683                 name_prefix: '',
3684                 link_whole: m,
3685                 install: true,
3686                 install_dir: qemu_moddir)
3687 endforeach
3688 if emulator_modules.length() > 0
3689   alias_target('modules', emulator_modules)
3690 endif
3691
3692 softmmu_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3693 common_ss.add(qom, qemuutil)
3694
3695 common_ss.add_all(when: 'CONFIG_SOFTMMU', if_true: [softmmu_ss])
3696 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3697
3698 common_all = common_ss.apply(config_all, strict: false)
3699 common_all = static_library('common',
3700                             build_by_default: false,
3701                             sources: common_all.sources() + genh,
3702                             include_directories: common_user_inc,
3703                             implicit_include_directories: false,
3704                             dependencies: common_all.dependencies(),
3705                             name_suffix: 'fa')
3706
3707 feature_to_c = find_program('scripts/feature_to_c.sh')
3708
3709 if targetos == 'darwin'
3710   entitlement = find_program('scripts/entitlement.sh')
3711 endif
3712
3713 emulators = {}
3714 foreach target : target_dirs
3715   config_target = config_target_mak[target]
3716   target_name = config_target['TARGET_NAME']
3717   target_base_arch = config_target['TARGET_BASE_ARCH']
3718   arch_srcs = [config_target_h[target]]
3719   arch_deps = []
3720   c_args = ['-DNEED_CPU_H',
3721             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3722             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3723   link_args = emulator_link_args
3724
3725   config_target += config_host
3726   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3727   if targetos == 'linux'
3728     target_inc += include_directories('linux-headers', is_system: true)
3729   endif
3730   if target.endswith('-softmmu')
3731     target_type='system'
3732     t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3733     arch_srcs += t.sources()
3734     arch_deps += t.dependencies()
3735
3736     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3737     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3738     arch_srcs += hw.sources()
3739     arch_deps += hw.dependencies()
3740
3741     arch_srcs += config_devices_h[target]
3742     link_args += ['@block.syms', '@qemu.syms']
3743   else
3744     abi = config_target['TARGET_ABI_DIR']
3745     target_type='user'
3746     target_inc += common_user_inc
3747     if target_base_arch in target_user_arch
3748       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3749       arch_srcs += t.sources()
3750       arch_deps += t.dependencies()
3751     endif
3752     if 'CONFIG_LINUX_USER' in config_target
3753       base_dir = 'linux-user'
3754     endif
3755     if 'CONFIG_BSD_USER' in config_target
3756       base_dir = 'bsd-user'
3757       target_inc += include_directories('bsd-user/' / targetos)
3758       target_inc += include_directories('bsd-user/host/' / host_arch)
3759       dir = base_dir / abi
3760       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3761     endif
3762     target_inc += include_directories(
3763       base_dir,
3764       base_dir / abi,
3765     )
3766     if 'CONFIG_LINUX_USER' in config_target
3767       dir = base_dir / abi
3768       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3769       if config_target.has_key('TARGET_SYSTBL_ABI')
3770         arch_srcs += \
3771           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3772                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3773       endif
3774     endif
3775   endif
3776
3777   if 'TARGET_XML_FILES' in config_target
3778     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3779                                 output: target + '-gdbstub-xml.c',
3780                                 input: files(config_target['TARGET_XML_FILES'].split()),
3781                                 command: [feature_to_c, '@INPUT@'],
3782                                 capture: true)
3783     arch_srcs += gdbstub_xml
3784   endif
3785
3786   t = target_arch[target_base_arch].apply(config_target, strict: false)
3787   arch_srcs += t.sources()
3788   arch_deps += t.dependencies()
3789
3790   target_common = common_ss.apply(config_target, strict: false)
3791   objects = common_all.extract_objects(target_common.sources())
3792   deps = target_common.dependencies()
3793
3794   target_specific = specific_ss.apply(config_target, strict: false)
3795   arch_srcs += target_specific.sources()
3796   arch_deps += target_specific.dependencies()
3797
3798   lib = static_library('qemu-' + target,
3799                  sources: arch_srcs + genh,
3800                  dependencies: arch_deps,
3801                  objects: objects,
3802                  include_directories: target_inc,
3803                  c_args: c_args,
3804                  build_by_default: false,
3805                  name_suffix: 'fa')
3806
3807   if target.endswith('-softmmu')
3808     execs = [{
3809       'name': 'qemu-system-' + target_name,
3810       'win_subsystem': 'console',
3811       'sources': files('softmmu/main.c'),
3812       'dependencies': []
3813     }]
3814     if targetos == 'windows' and (sdl.found() or gtk.found())
3815       execs += [{
3816         'name': 'qemu-system-' + target_name + 'w',
3817         'win_subsystem': 'windows',
3818         'sources': files('softmmu/main.c'),
3819         'dependencies': []
3820       }]
3821     endif
3822     if get_option('fuzzing')
3823       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3824       execs += [{
3825         'name': 'qemu-fuzz-' + target_name,
3826         'win_subsystem': 'console',
3827         'sources': specific_fuzz.sources(),
3828         'dependencies': specific_fuzz.dependencies(),
3829       }]
3830     endif
3831   else
3832     execs = [{
3833       'name': 'qemu-' + target_name,
3834       'win_subsystem': 'console',
3835       'sources': [],
3836       'dependencies': []
3837     }]
3838   endif
3839   foreach exe: execs
3840     exe_name = exe['name']
3841     if targetos == 'darwin'
3842       exe_name += '-unsigned'
3843     endif
3844
3845     emulator = executable(exe_name, exe['sources'],
3846                install: true,
3847                c_args: c_args,
3848                dependencies: arch_deps + deps + exe['dependencies'],
3849                objects: lib.extract_all_objects(recursive: true),
3850                link_language: link_language,
3851                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3852                link_args: link_args,
3853                win_subsystem: exe['win_subsystem'])
3854
3855     if targetos == 'darwin'
3856       icon = 'pc-bios/qemu.rsrc'
3857       build_input = [emulator, files(icon)]
3858       install_input = [
3859         get_option('bindir') / exe_name,
3860         meson.current_source_dir() / icon
3861       ]
3862       if 'CONFIG_HVF' in config_target
3863         entitlements = 'accel/hvf/entitlements.plist'
3864         build_input += files(entitlements)
3865         install_input += meson.current_source_dir() / entitlements
3866       endif
3867
3868       emulators += {exe['name'] : custom_target(exe['name'],
3869                    input: build_input,
3870                    output: exe['name'],
3871                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3872       }
3873
3874       meson.add_install_script(entitlement, '--install',
3875                                get_option('bindir') / exe['name'],
3876                                install_input)
3877     else
3878       emulators += {exe['name']: emulator}
3879     endif
3880
3881     if stap.found()
3882       foreach stp: [
3883         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3884         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3885         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3886         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3887       ]
3888         custom_target(exe['name'] + stp['ext'],
3889                       input: trace_events_all,
3890                       output: exe['name'] + stp['ext'],
3891                       install: stp['install'],
3892                       install_dir: get_option('datadir') / 'systemtap/tapset',
3893                       command: [
3894                         tracetool, '--group=all', '--format=' + stp['fmt'],
3895                         '--binary=' + stp['bin'],
3896                         '--target-name=' + target_name,
3897                         '--target-type=' + target_type,
3898                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3899                         '@INPUT@', '@OUTPUT@'
3900                       ],
3901                       depend_files: tracetool_depends)
3902       endforeach
3903     endif
3904   endforeach
3905 endforeach
3906
3907 # Other build targets
3908
3909 if 'CONFIG_PLUGIN' in config_host
3910   install_headers('include/qemu/qemu-plugin.h')
3911 endif
3912
3913 subdir('qga')
3914
3915 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3916 # when we don't build tools or system
3917 if xkbcommon.found()
3918   # used for the update-keymaps target, so include rules even if !have_tools
3919   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3920                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3921 endif
3922
3923 if have_tools
3924   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3925              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3926   qemu_io = executable('qemu-io', files('qemu-io.c'),
3927              dependencies: [block, qemuutil], install: true)
3928   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3929                dependencies: [blockdev, qemuutil, gnutls, selinux],
3930                install: true)
3931
3932   subdir('storage-daemon')
3933   subdir('contrib/rdmacm-mux')
3934   subdir('contrib/elf2dmp')
3935
3936   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3937              dependencies: qemuutil,
3938              install: true)
3939
3940   if have_vhost_user
3941     subdir('contrib/vhost-user-blk')
3942     subdir('contrib/vhost-user-gpu')
3943     subdir('contrib/vhost-user-input')
3944     subdir('contrib/vhost-user-scsi')
3945   endif
3946
3947   if targetos == 'linux'
3948     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3949                dependencies: [qemuutil, libcap_ng],
3950                install: true,
3951                install_dir: get_option('libexecdir'))
3952
3953     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3954                dependencies: [authz, crypto, io, qom, qemuutil,
3955                               libcap_ng, mpathpersist],
3956                install: true)
3957   endif
3958
3959   if have_ivshmem
3960     subdir('contrib/ivshmem-client')
3961     subdir('contrib/ivshmem-server')
3962   endif
3963 endif
3964
3965 subdir('scripts')
3966 subdir('tools')
3967 subdir('pc-bios')
3968 subdir('docs')
3969 subdir('tests')
3970 if gtk.found()
3971   subdir('po')
3972 endif
3973
3974 if host_machine.system() == 'windows'
3975   nsis_cmd = [
3976     find_program('scripts/nsis.py'),
3977     '@OUTPUT@',
3978     get_option('prefix'),
3979     meson.current_source_dir(),
3980     glib_pc.get_variable('bindir'),
3981     host_machine.cpu(),
3982     '--',
3983     '-DDISPLAYVERSION=' + meson.project_version(),
3984   ]
3985   if build_docs
3986     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3987   endif
3988   if gtk.found()
3989     nsis_cmd += '-DCONFIG_GTK=y'
3990   endif
3991
3992   nsis = custom_target('nsis',
3993                        output: 'qemu-setup-' + meson.project_version() + '.exe',
3994                        input: files('qemu.nsi'),
3995                        build_always_stale: true,
3996                        command: nsis_cmd + ['@INPUT@'])
3997   alias_target('installer', nsis)
3998 endif
3999
4000 #########################
4001 # Configuration summary #
4002 #########################
4003
4004 # Directories
4005 summary_info = {}
4006 summary_info += {'Install prefix':    get_option('prefix')}
4007 summary_info += {'BIOS directory':    qemu_datadir}
4008 pathsep = targetos == 'windows' ? ';' : ':'
4009 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
4010 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
4011 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
4012 summary_info += {'module directory':  qemu_moddir}
4013 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
4014 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
4015 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
4016 if targetos != 'windows'
4017   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
4018   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
4019 else
4020   summary_info += {'local state directory': 'queried at runtime'}
4021 endif
4022 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4023 summary_info += {'Build directory':   meson.current_build_dir()}
4024 summary_info += {'Source path':       meson.current_source_dir()}
4025 summary_info += {'GIT submodules':    config_host['GIT_SUBMODULES']}
4026 summary(summary_info, bool_yn: true, section: 'Directories')
4027
4028 # Host binaries
4029 summary_info = {}
4030 summary_info += {'git':               config_host['GIT']}
4031 summary_info += {'make':              config_host['MAKE']}
4032 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4033 summary_info += {'sphinx-build':      sphinx_build}
4034 if config_host.has_key('HAVE_GDB_BIN')
4035   summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
4036 endif
4037 summary_info += {'iasl':              iasl}
4038 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4039 if targetos == 'windows' and have_ga
4040   summary_info += {'wixl':            wixl}
4041 endif
4042 if slirp.found() and have_system
4043   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4044 endif
4045 summary(summary_info, bool_yn: true, section: 'Host binaries')
4046
4047 # Configurable features
4048 summary_info = {}
4049 summary_info += {'Documentation':     build_docs}
4050 summary_info += {'system-mode emulation': have_system}
4051 summary_info += {'user-mode emulation': have_user}
4052 summary_info += {'block layer':       have_block}
4053 summary_info += {'Install blobs':     get_option('install_blobs')}
4054 summary_info += {'module support':    enable_modules}
4055 if enable_modules
4056   summary_info += {'alternative module path': get_option('module_upgrades')}
4057 endif
4058 summary_info += {'fuzzing support':   get_option('fuzzing')}
4059 if have_system
4060   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4061 endif
4062 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4063 if 'simple' in get_option('trace_backends')
4064   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4065 endif
4066 summary_info += {'D-Bus display':     dbus_display}
4067 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4068 summary_info += {'vhost-kernel support': have_vhost_kernel}
4069 summary_info += {'vhost-net support': have_vhost_net}
4070 summary_info += {'vhost-user support': have_vhost_user}
4071 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4072 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4073 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4074 summary_info += {'build guest agent': have_ga}
4075 summary(summary_info, bool_yn: true, section: 'Configurable features')
4076
4077 # Compilation information
4078 summary_info = {}
4079 summary_info += {'host CPU':          cpu}
4080 summary_info += {'host endianness':   build_machine.endian()}
4081 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4082 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4083 if link_language == 'cpp'
4084   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4085 else
4086   summary_info += {'C++ compiler':      false}
4087 endif
4088 if targetos == 'darwin'
4089   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4090 endif
4091 option_cflags = (get_option('debug') ? ['-g'] : [])
4092 if get_option('optimization') != 'plain'
4093   option_cflags += ['-O' + get_option('optimization')]
4094 endif
4095 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4096 if link_language == 'cpp'
4097   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4098 endif
4099 if targetos == 'darwin'
4100   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4101 endif
4102 link_args = get_option(link_language + '_link_args')
4103 if link_args.length() > 0
4104   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4105 endif
4106 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4107 if 'cpp' in all_languages
4108   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4109 endif
4110 if 'objc' in all_languages
4111   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4112 endif
4113 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4114 summary_info += {'profiler':          get_option('profiler')}
4115 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4116 summary_info += {'PIE':               get_option('b_pie')}
4117 summary_info += {'static build':      config_host.has_key('CONFIG_STATIC')}
4118 summary_info += {'malloc trim support': has_malloc_trim}
4119 summary_info += {'membarrier':        have_membarrier}
4120 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4121 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4122 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4123 summary_info += {'memory allocator':  get_option('malloc')}
4124 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4125 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4126 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4127 if get_option('gprof')
4128   gprof_info = 'YES (deprecated)'
4129 else
4130   gprof_info = get_option('gprof')
4131 endif
4132 summary_info += {'gprof':             gprof_info}
4133 summary_info += {'gcov':              get_option('b_coverage')}
4134 summary_info += {'thread sanitizer':  get_option('tsan')}
4135 summary_info += {'CFI support':       get_option('cfi')}
4136 if get_option('cfi')
4137   summary_info += {'CFI debug support': get_option('cfi_debug')}
4138 endif
4139 summary_info += {'strip binaries':    get_option('strip')}
4140 summary_info += {'sparse':            sparse}
4141 summary_info += {'mingw32 support':   targetos == 'windows'}
4142 summary(summary_info, bool_yn: true, section: 'Compilation')
4143
4144 # snarf the cross-compilation information for tests
4145 summary_info = {}
4146 have_cross = false
4147 foreach target: target_dirs
4148   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4149   if fs.exists(tcg_mak)
4150     config_cross_tcg = keyval.load(tcg_mak)
4151     if 'CC' in config_cross_tcg
4152       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4153       have_cross = true
4154     endif
4155   endif
4156 endforeach
4157 if have_cross
4158   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4159 endif
4160
4161 # Targets and accelerators
4162 summary_info = {}
4163 if have_system
4164   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4165   summary_info += {'HAX support':       config_all.has_key('CONFIG_HAX')}
4166   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4167   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4168   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4169   summary_info += {'Xen support':       xen.found()}
4170   if xen.found()
4171     summary_info += {'xen ctrl version':  xen.version()}
4172   endif
4173   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4174 endif
4175 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4176 if config_all.has_key('CONFIG_TCG')
4177   if get_option('tcg_interpreter')
4178     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4179   else
4180     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4181   endif
4182   summary_info += {'TCG plugins': config_host.has_key('CONFIG_PLUGIN')}
4183   summary_info += {'TCG debug enabled': config_host.has_key('CONFIG_DEBUG_TCG')}
4184 endif
4185 summary_info += {'target list':       ' '.join(target_dirs)}
4186 if have_system
4187   summary_info += {'default devices':   get_option('default_devices')}
4188   summary_info += {'out of process emulation': multiprocess_allowed}
4189   summary_info += {'vfio-user server': vfio_user_server_allowed}
4190 endif
4191 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4192
4193 # Block layer
4194 summary_info = {}
4195 summary_info += {'coroutine backend': coroutine_backend}
4196 summary_info += {'coroutine pool':    have_coroutine_pool}
4197 if have_block
4198   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4199   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4200   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4201   summary_info += {'VirtFS (9P) support':    have_virtfs}
4202   summary_info += {'VirtFS (9P) Proxy Helper support': have_virtfs_proxy_helper}
4203   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4204   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4205   summary_info += {'bochs support':     get_option('bochs').allowed()}
4206   summary_info += {'cloop support':     get_option('cloop').allowed()}
4207   summary_info += {'dmg support':       get_option('dmg').allowed()}
4208   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4209   summary_info += {'vdi support':       get_option('vdi').allowed()}
4210   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4211   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4212   summary_info += {'vpc support':       get_option('vpc').allowed()}
4213   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4214   summary_info += {'qed support':       get_option('qed').allowed()}
4215   summary_info += {'parallels support': get_option('parallels').allowed()}
4216   summary_info += {'FUSE exports':      fuse}
4217   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4218 endif
4219 summary(summary_info, bool_yn: true, section: 'Block layer support')
4220
4221 # Crypto
4222 summary_info = {}
4223 summary_info += {'TLS priority':      get_option('tls_priority')}
4224 summary_info += {'GNUTLS support':    gnutls}
4225 if gnutls.found()
4226   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4227 endif
4228 summary_info += {'libgcrypt':         gcrypt}
4229 summary_info += {'nettle':            nettle}
4230 if nettle.found()
4231    summary_info += {'  XTS':             xts != 'private'}
4232 endif
4233 summary_info += {'AF_ALG support':    have_afalg}
4234 summary_info += {'rng-none':          get_option('rng_none')}
4235 summary_info += {'Linux keyring':     have_keyring}
4236 summary(summary_info, bool_yn: true, section: 'Crypto')
4237
4238 # Libraries
4239 summary_info = {}
4240 if targetos == 'darwin'
4241   summary_info += {'Cocoa support':           cocoa}
4242   summary_info += {'vmnet.framework support': vmnet}
4243 endif
4244 summary_info += {'SDL support':       sdl}
4245 summary_info += {'SDL image support': sdl_image}
4246 summary_info += {'GTK support':       gtk}
4247 summary_info += {'pixman':            pixman}
4248 summary_info += {'VTE support':       vte}
4249 summary_info += {'slirp support':     slirp}
4250 summary_info += {'libtasn1':          tasn1}
4251 summary_info += {'PAM':               pam}
4252 summary_info += {'iconv support':     iconv}
4253 summary_info += {'curses support':    curses}
4254 summary_info += {'virgl support':     virgl}
4255 summary_info += {'blkio support':     blkio}
4256 summary_info += {'curl support':      curl}
4257 summary_info += {'Multipath support': mpathpersist}
4258 summary_info += {'PNG support':       png}
4259 summary_info += {'VNC support':       vnc}
4260 if vnc.found()
4261   summary_info += {'VNC SASL support':  sasl}
4262   summary_info += {'VNC JPEG support':  jpeg}
4263 endif
4264 if targetos not in ['darwin', 'haiku', 'windows']
4265   summary_info += {'OSS support':     oss}
4266   summary_info += {'sndio support':   sndio}
4267 elif targetos == 'darwin'
4268   summary_info += {'CoreAudio support': coreaudio}
4269 elif targetos == 'windows'
4270   summary_info += {'DirectSound support': dsound}
4271 endif
4272 if targetos == 'linux'
4273   summary_info += {'ALSA support':    alsa}
4274   summary_info += {'PulseAudio support': pulse}
4275 endif
4276 summary_info += {'Pipewire support':   pipewire}
4277 summary_info += {'JACK support':      jack}
4278 summary_info += {'brlapi support':    brlapi}
4279 summary_info += {'vde support':       vde}
4280 summary_info += {'netmap support':    have_netmap}
4281 summary_info += {'l2tpv3 support':    have_l2tpv3}
4282 summary_info += {'Linux AIO support': libaio}
4283 summary_info += {'Linux io_uring support': linux_io_uring}
4284 summary_info += {'ATTR/XATTR support': libattr}
4285 summary_info += {'RDMA support':      rdma}
4286 summary_info += {'PVRDMA support':    have_pvrdma}
4287 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4288 summary_info += {'libcap-ng support': libcap_ng}
4289 summary_info += {'bpf support':       libbpf}
4290 summary_info += {'spice protocol support': spice_protocol}
4291 if spice_protocol.found()
4292   summary_info += {'  spice server support': spice}
4293 endif
4294 summary_info += {'rbd support':       rbd}
4295 summary_info += {'smartcard support': cacard}
4296 summary_info += {'U2F support':       u2f}
4297 summary_info += {'libusb':            libusb}
4298 summary_info += {'usb net redir':     usbredir}
4299 summary_info += {'OpenGL support (epoxy)': opengl}
4300 summary_info += {'GBM':               gbm}
4301 summary_info += {'libiscsi support':  libiscsi}
4302 summary_info += {'libnfs support':    libnfs}
4303 if targetos == 'windows'
4304   if have_ga
4305     summary_info += {'QGA VSS support':   have_qga_vss}
4306   endif
4307 endif
4308 summary_info += {'seccomp support':   seccomp}
4309 summary_info += {'GlusterFS support': glusterfs}
4310 summary_info += {'TPM support':       have_tpm}
4311 summary_info += {'libssh support':    libssh}
4312 summary_info += {'lzo support':       lzo}
4313 summary_info += {'snappy support':    snappy}
4314 summary_info += {'bzip2 support':     libbzip2}
4315 summary_info += {'lzfse support':     liblzfse}
4316 summary_info += {'zstd support':      zstd}
4317 summary_info += {'NUMA host support': numa}
4318 summary_info += {'capstone':          capstone}
4319 summary_info += {'libpmem support':   libpmem}
4320 summary_info += {'libdaxctl support': libdaxctl}
4321 summary_info += {'libudev':           libudev}
4322 # Dummy dependency, keep .found()
4323 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4324 summary_info += {'selinux':           selinux}
4325 summary_info += {'libdw':             libdw}
4326 summary(summary_info, bool_yn: true, section: 'Dependencies')
4327
4328 if not supported_cpus.contains(cpu)
4329   message()
4330   warning('SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!')
4331   message()
4332   message('CPU host architecture ' + cpu + ' support is not currently maintained.')
4333   message('The QEMU project intends to remove support for this host CPU in')
4334   message('a future release if nobody volunteers to maintain it and to')
4335   message('provide a build host for our continuous integration setup.')
4336   message('configure has succeeded and you can continue to build, but')
4337   message('if you care about QEMU on this platform you should contact')
4338   message('us upstream at qemu-devel@nongnu.org.')
4339 endif
4340
4341 if not supported_oses.contains(targetos)
4342   message()
4343   warning('WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!')
4344   message()
4345   message('Host OS ' + targetos + 'support is not currently maintained.')
4346   message('The QEMU project intends to remove support for this host OS in')
4347   message('a future release if nobody volunteers to maintain it and to')
4348   message('provide a build host for our continuous integration setup.')
4349   message('configure has succeeded and you can continue to build, but')
4350   message('if you care about QEMU on this platform you should contact')
4351   message('us upstream at qemu-devel@nongnu.org.')
4352 endif