meson.build

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