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 targetos == 'windows' and 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', 'riscv32', 'riscv64', 'x86', 'x86_64',
  59   'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64']
  60
  61 cpu = host_machine.cpu_family()
  62
  63 target_dirs = config_host['TARGET_DIRS'].split()
  64 have_linux_user = false
  65 have_bsd_user = false
  66 have_system = false
  67 foreach target : target_dirs
  68   have_linux_user = have_linux_user or target.endswith('linux-user')
  69   have_bsd_user = have_bsd_user or target.endswith('bsd-user')
  70   have_system = have_system or target.endswith('-softmmu')
  71 endforeach
  72 have_user = have_linux_user or have_bsd_user
  73 have_tools = get_option('tools') \
  74   .disable_auto_if(not have_system) \
  75   .allowed()
  76 have_ga = get_option('guest_agent') \
  77   .disable_auto_if(not have_system and not have_tools) \
  78   .require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
  79            error_message: 'unsupported OS for QEMU guest agent') \
  80   .allowed()
  81 enable_modules = get_option('modules') \
  82   .require(targetos != 'windows',
  83            error_message: 'Modules are not available for Windows') \
  84   .require(not get_option('prefer_static'),
  85            error_message: 'Modules are incompatible with static linking') \
  86   .allowed()
  87 have_block = have_system or have_tools
  88
  89 python = import('python').find_installation()
  90
  91 if cpu not in supported_cpus
  92   host_arch = 'unknown'
  93 elif cpu == 'x86'
  94   host_arch = 'i386'
  95 elif cpu == 'mips64'
  96   host_arch = 'mips'
  97 elif cpu in ['riscv32', 'riscv64']
  98   host_arch = 'riscv'
  99 else
 100   host_arch = cpu
 101 endif
 102
 103 if cpu in ['x86', 'x86_64']
 104   kvm_targets = ['i386-softmmu', 'x86_64-softmmu']
 105 elif cpu == 'aarch64'
 106   kvm_targets = ['aarch64-softmmu']
 107 elif cpu == 's390x'
 108   kvm_targets = ['s390x-softmmu']
 109 elif cpu in ['ppc', 'ppc64']
 110   kvm_targets = ['ppc-softmmu', 'ppc64-softmmu']
 111 elif cpu in ['mips', 'mips64']
 112   kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu']
 113 elif cpu in ['riscv32']
 114   kvm_targets = ['riscv32-softmmu']
 115 elif cpu in ['riscv64']
 116   kvm_targets = ['riscv64-softmmu']
 117 else
 118   kvm_targets = []
 119 endif
 120
 121 kvm_targets_c = '""'
 122 if get_option('kvm').allowed() and targetos == 'linux'
 123   kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
 124 endif
 125 config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
 126
 127 accelerator_targets = { 'CONFIG_KVM': kvm_targets }
 128
 129 if cpu in ['aarch64']
 130   accelerator_targets += {
 131     'CONFIG_HVF': ['aarch64-softmmu']
 132   }
 133 endif
 134
 135 if cpu in ['x86', 'x86_64', 'arm', 'aarch64']
 136   # i386 emulator provides xenpv machine type for multiple architectures
 137   accelerator_targets += {
 138     'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu', 'aarch64-softmmu'],
 139   }
 140 endif
 141 if cpu in ['x86', 'x86_64']
 142   accelerator_targets += {
 143     'CONFIG_HVF': ['x86_64-softmmu'],
 144     'CONFIG_NVMM': ['i386-softmmu', 'x86_64-softmmu'],
 145     'CONFIG_WHPX': ['i386-softmmu', 'x86_64-softmmu'],
 146   }
 147 endif
 148
 149 modular_tcg = []
 150 # Darwin does not support references to thread-local variables in modules
 151 if targetos != 'darwin'
 152   modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
 153 endif
 154
 155 edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
 156 unpack_edk2_blobs = false
 157 foreach target : edk2_targets
 158   if target in target_dirs
 159     bzip2 = find_program('bzip2', required: get_option('install_blobs'))
 160     unpack_edk2_blobs = bzip2.found()
 161     break
 162   endif
 163 endforeach
 164
 165 dtrace = not_found
 166 stap = not_found
 167 if 'dtrace' in get_option('trace_backends')
 168   dtrace = find_program('dtrace', required: true)
 169   stap = find_program('stap', required: false)
 170   if stap.found()
 171     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
 172     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
 173     # instead. QEMU --enable-modules depends on this because the SystemTap
 174     # semaphores are linked into the main binary and not the module's shared
 175     # object.
 176     add_global_arguments('-DSTAP_SDT_V2',
 177                          native: false, language: all_languages)
 178   endif
 179 endif
 180
 181 if get_option('iasl') == ''
 182   iasl = find_program('iasl', required: false)
 183 else
 184   iasl = find_program(get_option('iasl'), required: true)
 185 endif
 186
 187 ##################
 188 # Compiler flags #
 189 ##################
 190
 191 foreach lang : all_languages
 192   compiler = meson.get_compiler(lang)
 193   if compiler.get_id() == 'gcc' and compiler.version().version_compare('>=7.4')
 194     # ok
 195   elif compiler.get_id() == 'clang' and compiler.compiles('''
 196       #ifdef __apple_build_version__
 197       # if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
 198       #  error You need at least XCode Clang v12.0 to compile QEMU
 199       # endif
 200       #else
 201       # if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
 202       #  error You need at least Clang v10.0 to compile QEMU
 203       # endif
 204       #endif''')
 205     # ok
 206   else
 207     error('You either need GCC v7.4 or Clang v10.0 (or XCode Clang v12.0) to compile QEMU')
 208   endif
 209 endforeach
 210
 211 # default flags for all hosts
 212 # We use -fwrapv to tell the compiler that we require a C dialect where
 213 # left shift of signed integers is well defined and has the expected
 214 # 2s-complement style results. (Both clang and gcc agree that it
 215 # provides these semantics.)
 216
 217 qemu_common_flags = [
 218   '-D_GNU_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE',
 219   '-fno-strict-aliasing', '-fno-common', '-fwrapv' ]
 220 qemu_cflags = []
 221 qemu_ldflags = []
 222
 223 if targetos == 'darwin'
 224   # Disable attempts to use ObjectiveC features in os/object.h since they
 225   # won't work when we're compiling with gcc as a C compiler.
 226   if compiler.get_id() == 'gcc'
 227     qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
 228   endif
 229 elif targetos == 'sunos'
 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 # Set up C++ compiler flags
 477 qemu_cxxflags = []
 478 if 'cpp' in all_languages
 479   qemu_cxxflags = ['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'] + qemu_cflags
 480 endif
 481
 482 # clang does not support glibc + FORTIFY_SOURCE (is it still true?)
 483 if get_option('optimization') != '0' and targetos == 'linux'
 484   if cc.get_id() == 'gcc'
 485     qemu_cflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 486   endif
 487   if 'cpp' in all_languages and cxx.get_id() == 'gcc'
 488     qemu_cxxflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 489   endif
 490 endif
 491
 492 add_project_arguments(qemu_cflags, native: false, language: 'c')
 493 add_project_arguments(cc.get_supported_arguments(warn_flags), native: false, language: 'c')
 494 if 'cpp' in all_languages
 495   add_project_arguments(qemu_cxxflags, native: false, language: 'cpp')
 496   add_project_arguments(cxx.get_supported_arguments(warn_flags), native: false, language: 'cpp')
 497 endif
 498 if 'objc' in all_languages
 499   # Note sanitizer flags are not applied to Objective-C sources!
 500   add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
 501 endif
 502 if targetos == 'linux'
 503   add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
 504                         '-isystem', 'linux-headers',
 505                         language: all_languages)
 506 endif
 507
 508 add_project_arguments('-iquote', '.',
 509                       '-iquote', meson.current_source_dir(),
 510                       '-iquote', meson.current_source_dir() / 'include',
 511                       language: all_languages)
 512
 513 # If a host-specific include directory exists, list that first...
 514 host_include = meson.current_source_dir() / 'host/include/'
 515 if fs.is_dir(host_include / host_arch)
 516   add_project_arguments('-iquote', host_include / host_arch,
 517                         language: all_languages)
 518 endif
 519 # ... followed by the generic fallback.
 520 add_project_arguments('-iquote', host_include / 'generic',
 521                       language: all_languages)
 522
 523 sparse = find_program('cgcc', required: get_option('sparse'))
 524 if sparse.found()
 525   run_target('sparse',
 526              command: [find_program('scripts/check_sparse.py'),
 527                        'compile_commands.json', sparse.full_path(), '-Wbitwise',
 528                        '-Wno-transparent-union', '-Wno-old-initializer',
 529                        '-Wno-non-pointer-null'])
 530 endif
 531
 532 ###########################################
 533 # Target-specific checks and dependencies #
 534 ###########################################
 535
 536 # Fuzzing
 537 if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
 538     not cc.links('''
 539           #include <stdint.h>
 540           #include <sys/types.h>
 541           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 542           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 543         ''',
 544         args: ['-Werror', '-fsanitize=fuzzer'])
 545   error('Your compiler does not support -fsanitize=fuzzer')
 546 endif
 547
 548 # Tracing backends
 549 if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
 550   error('ftrace is supported only on Linux')
 551 endif
 552 if 'syslog' in get_option('trace_backends') and not cc.compiles('''
 553     #include <syslog.h>
 554     int main(void) {
 555         openlog("qemu", LOG_PID, LOG_DAEMON);
 556         syslog(LOG_INFO, "configure");
 557         return 0;
 558     }''')
 559   error('syslog is not supported on this system')
 560 endif
 561
 562 # Miscellaneous Linux-only features
 563 get_option('mpath') \
 564   .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
 565
 566 multiprocess_allowed = get_option('multiprocess') \
 567   .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
 568   .allowed()
 569
 570 vfio_user_server_allowed = get_option('vfio_user_server') \
 571   .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
 572   .allowed()
 573
 574 have_tpm = get_option('tpm') \
 575   .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
 576   .allowed()
 577
 578 # vhost
 579 have_vhost_user = get_option('vhost_user') \
 580   .disable_auto_if(targetos != 'linux') \
 581   .require(targetos != 'windows',
 582            error_message: 'vhost-user is not available on Windows').allowed()
 583 have_vhost_vdpa = get_option('vhost_vdpa') \
 584   .require(targetos == 'linux',
 585            error_message: 'vhost-vdpa is only available on Linux').allowed()
 586 have_vhost_kernel = get_option('vhost_kernel') \
 587   .require(targetos == 'linux',
 588            error_message: 'vhost-kernel is only available on Linux').allowed()
 589 have_vhost_user_crypto = get_option('vhost_crypto') \
 590   .require(have_vhost_user,
 591            error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
 592
 593 have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
 594
 595 have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
 596 have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
 597 have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
 598 have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
 599
 600 # Target-specific libraries and flags
 601 libm = cc.find_library('m', required: false)
 602 threads = dependency('threads')
 603 util = cc.find_library('util', required: false)
 604 winmm = []
 605 socket = []
 606 version_res = []
 607 coref = []
 608 iokit = []
 609 emulator_link_args = []
 610 nvmm =not_found
 611 hvf = not_found
 612 midl = not_found
 613 widl = not_found
 614 pathcch = not_found
 615 host_dsosuf = '.so'
 616 if targetos == 'windows'
 617   midl = find_program('midl', required: false)
 618   widl = find_program('widl', required: false)
 619   pathcch = cc.find_library('pathcch')
 620   socket = cc.find_library('ws2_32')
 621   winmm = cc.find_library('winmm')
 622
 623   win = import('windows')
 624   version_res = win.compile_resources('version.rc',
 625                                       depend_files: files('pc-bios/qemu-nsis.ico'),
 626                                       include_directories: include_directories('.'))
 627   host_dsosuf = '.dll'
 628 elif targetos == 'darwin'
 629   coref = dependency('appleframeworks', modules: 'CoreFoundation')
 630   iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
 631   host_dsosuf = '.dylib'
 632 elif targetos == 'sunos'
 633   socket = [cc.find_library('socket'),
 634             cc.find_library('nsl'),
 635             cc.find_library('resolv')]
 636 elif targetos == 'haiku'
 637   socket = [cc.find_library('posix_error_mapper'),
 638             cc.find_library('network'),
 639             cc.find_library('bsd')]
 640 elif targetos == 'openbsd'
 641   if get_option('tcg').allowed() and target_dirs.length() > 0
 642     # Disable OpenBSD W^X if available
 643     emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
 644   endif
 645 endif
 646
 647 # Target-specific configuration of accelerators
 648 accelerators = []
 649 if get_option('kvm').allowed() and targetos == 'linux'
 650   accelerators += 'CONFIG_KVM'
 651 endif
 652 if get_option('whpx').allowed() and targetos == 'windows'
 653   if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
 654     error('WHPX requires 64-bit host')
 655   elif cc.has_header('winhvplatform.h', required: get_option('whpx')) and \
 656        cc.has_header('winhvemulation.h', required: get_option('whpx'))
 657     accelerators += 'CONFIG_WHPX'
 658   endif
 659 endif
 660 if get_option('hvf').allowed()
 661   hvf = dependency('appleframeworks', modules: 'Hypervisor',
 662                    required: get_option('hvf'))
 663   if hvf.found()
 664     accelerators += 'CONFIG_HVF'
 665   endif
 666 endif
 667 if targetos == 'netbsd'
 668   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
 669   if nvmm.found()
 670     accelerators += 'CONFIG_NVMM'
 671   endif
 672 endif
 673
 674 tcg_arch = host_arch
 675 if get_option('tcg').allowed()
 676   if host_arch == 'unknown'
 677     if not get_option('tcg_interpreter')
 678       error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
 679     endif
 680   elif get_option('tcg_interpreter')
 681     warning('Use of the TCG interpreter is not recommended on this host')
 682     warning('architecture. There is a native TCG execution backend available')
 683     warning('which provides substantially better performance and reliability.')
 684     warning('It is strongly recommended to remove the --enable-tcg-interpreter')
 685     warning('configuration option on this architecture to use the native')
 686     warning('backend.')
 687   endif
 688   if get_option('tcg_interpreter')
 689     tcg_arch = 'tci'
 690   elif host_arch == 'x86_64'
 691     tcg_arch = 'i386'
 692   elif host_arch == 'ppc64'
 693     tcg_arch = 'ppc'
 694   endif
 695   add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
 696                         language: all_languages)
 697
 698   accelerators += 'CONFIG_TCG'
 699 endif
 700
 701 if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
 702   error('KVM not available on this platform')
 703 endif
 704 if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
 705   error('HVF not available on this platform')
 706 endif
 707 if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
 708   error('NVMM not available on this platform')
 709 endif
 710 if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
 711   error('WHPX not available on this platform')
 712 endif
 713
 714 ################
 715 # Dependencies #
 716 ################
 717
 718 # When bumping glib minimum version, please check also whether to increase
 719 # the _WIN32_WINNT setting in osdep.h according to the value from glib
 720 glib_req_ver = '>=2.56.0'
 721 glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
 722                     method: 'pkg-config')
 723 glib_cflags = []
 724 if enable_modules
 725   gmodule = dependency('gmodule-export-2.0', version: glib_req_ver, required: true,
 726                        method: 'pkg-config')
 727 elif get_option('plugins')
 728   gmodule = dependency('gmodule-no-export-2.0', version: glib_req_ver, required: true,
 729                        method: 'pkg-config')
 730 else
 731   gmodule = not_found
 732 endif
 733
 734 # This workaround is required due to a bug in pkg-config file for glib as it
 735 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
 736 if targetos == 'windows' and get_option('prefer_static')
 737   glib_cflags += ['-DGLIB_STATIC_COMPILATION']
 738 endif
 739
 740 # Sanity check that the current size_t matches the
 741 # size that glib thinks it should be. This catches
 742 # problems on multi-arch where people try to build
 743 # 32-bit QEMU while pointing at 64-bit glib headers
 744
 745 if not cc.compiles('''
 746   #include <glib.h>
 747   #include <unistd.h>
 748
 749   #define QEMU_BUILD_BUG_ON(x) \
 750   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
 751
 752   int main(void) {
 753      QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
 754      return 0;
 755   }''', dependencies: glib_pc, args: glib_cflags)
 756   error('''sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
 757         You probably need to set PKG_CONFIG_LIBDIR" to point
 758         to the right pkg-config files for your build target.''')
 759 endif
 760
 761 # Silence clang warnings triggered by glib < 2.57.2
 762 if not cc.compiles('''
 763   #include <glib.h>
 764   typedef struct Foo {
 765     int i;
 766   } Foo;
 767   static void foo_free(Foo *f)
 768   {
 769     g_free(f);
 770   }
 771   G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
 772   int main(void) { return 0; }''', dependencies: glib_pc, args: ['-Wunused-function', '-Werror'])
 773   glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
 774 endif
 775 glib = declare_dependency(dependencies: [glib_pc, gmodule],
 776                           compile_args: glib_cflags,
 777                           version: glib_pc.version())
 778
 779 # Check whether glib has gslice, which we have to avoid for correctness.
 780 # TODO: remove this check and the corresponding workaround (qtree) when
 781 # the minimum supported glib is >= 2.75.3
 782 glib_has_gslice = glib.version().version_compare('<2.75.3')
 783
 784 # override glib dep to include the above refinements
 785 meson.override_dependency('glib-2.0', glib)
 786
 787 # The path to glib.h is added to all compilation commands.
 788 add_project_dependencies(glib.partial_dependency(compile_args: true, includes: true),
 789                          native: false, language: all_languages)
 790
 791 gio = not_found
 792 gdbus_codegen = not_found
 793 gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
 794 if not get_option('gio').auto() or have_system
 795   gio = dependency('gio-2.0', required: get_option('gio'),
 796                    method: 'pkg-config')
 797   if gio.found() and not cc.links('''
 798     #include <gio/gio.h>
 799     int main(void)
 800     {
 801       g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
 802       return 0;
 803     }''', dependencies: [glib, gio])
 804     if get_option('gio').enabled()
 805       error('The installed libgio is broken for static linking')
 806     endif
 807     gio = not_found
 808   endif
 809   if gio.found()
 810     gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
 811                                  required: get_option('gio'))
 812     gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
 813                           method: 'pkg-config')
 814     gio = declare_dependency(dependencies: [gio, gio_unix],
 815                              version: gio.version())
 816   endif
 817 endif
 818 if gdbus_codegen.found() and get_option('cfi')
 819   gdbus_codegen = not_found
 820   gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
 821 endif
 822
 823 xml_pp = find_program('scripts/xml-preprocess.py')
 824
 825 lttng = not_found
 826 if 'ust' in get_option('trace_backends')
 827   lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
 828                      method: 'pkg-config')
 829 endif
 830 pixman = not_found
 831 if have_system or have_tools
 832   pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
 833                       method: 'pkg-config')
 834 endif
 835 zlib = dependency('zlib', required: true)
 836
 837 libaio = not_found
 838 if not get_option('linux_aio').auto() or have_block
 839   libaio = cc.find_library('aio', has_headers: ['libaio.h'],
 840                            required: get_option('linux_aio'))
 841 endif
 842
 843 linux_io_uring_test = '''
 844   #include <liburing.h>
 845   #include <linux/errqueue.h>
 846
 847   int main(void) { return 0; }'''
 848
 849 linux_io_uring = not_found
 850 if not get_option('linux_io_uring').auto() or have_block
 851   linux_io_uring = dependency('liburing', version: '>=0.3',
 852                               required: get_option('linux_io_uring'),
 853                               method: 'pkg-config')
 854   if not cc.links(linux_io_uring_test)
 855     linux_io_uring = not_found
 856   endif
 857 endif
 858
 859 libnfs = not_found
 860 if not get_option('libnfs').auto() or have_block
 861   libnfs = dependency('libnfs', version: '>=1.9.3',
 862                       required: get_option('libnfs'),
 863                       method: 'pkg-config')
 864 endif
 865
 866 libattr_test = '''
 867   #include <stddef.h>
 868   #include <sys/types.h>
 869   #ifdef CONFIG_LIBATTR
 870   #include <attr/xattr.h>
 871   #else
 872   #include <sys/xattr.h>
 873   #endif
 874   int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
 875
 876 libattr = not_found
 877 have_old_libattr = false
 878 if get_option('attr').allowed()
 879   if cc.links(libattr_test)
 880     libattr = declare_dependency()
 881   else
 882     libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
 883                               required: get_option('attr'))
 884     if libattr.found() and not \
 885       cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
 886       libattr = not_found
 887       if get_option('attr').enabled()
 888         error('could not link libattr')
 889       else
 890         warning('could not link libattr, disabling')
 891       endif
 892     else
 893       have_old_libattr = libattr.found()
 894     endif
 895   endif
 896 endif
 897
 898 cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
 899                    required: get_option('cocoa'))
 900
 901 vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
 902 if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
 903                                               'VMNET_BRIDGED_MODE',
 904                                               dependencies: vmnet)
 905   vmnet = not_found
 906   if get_option('vmnet').enabled()
 907     error('vmnet.framework API is outdated')
 908   else
 909     warning('vmnet.framework API is outdated, disabling')
 910   endif
 911 endif
 912
 913 seccomp = not_found
 914 seccomp_has_sysrawrc = false
 915 if not get_option('seccomp').auto() or have_system or have_tools
 916   seccomp = dependency('libseccomp', version: '>=2.3.0',
 917                        required: get_option('seccomp'),
 918                        method: 'pkg-config')
 919   if seccomp.found()
 920     seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
 921                                                 'SCMP_FLTATR_API_SYSRAWRC',
 922                                                 dependencies: seccomp)
 923   endif
 924 endif
 925
 926 libcap_ng = not_found
 927 if not get_option('cap_ng').auto() or have_system or have_tools
 928   libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
 929                               required: get_option('cap_ng'))
 930 endif
 931 if libcap_ng.found() and not cc.links('''
 932    #include <cap-ng.h>
 933    int main(void)
 934    {
 935      capng_capability_to_name(CAPNG_EFFECTIVE);
 936      return 0;
 937    }''', dependencies: libcap_ng)
 938   libcap_ng = not_found
 939   if get_option('cap_ng').enabled()
 940     error('could not link libcap-ng')
 941   else
 942     warning('could not link libcap-ng, disabling')
 943   endif
 944 endif
 945
 946 if get_option('xkbcommon').auto() and not have_system and not have_tools
 947   xkbcommon = not_found
 948 else
 949   xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
 950                          method: 'pkg-config')
 951 endif
 952
 953 slirp = not_found
 954 if not get_option('slirp').auto() or have_system
 955   slirp = dependency('slirp', required: get_option('slirp'),
 956                      method: 'pkg-config')
 957   # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
 958   # it passes function pointers within libslirp as callbacks for timers.
 959   # When using a system-wide shared libslirp, the type information for the
 960   # callback is missing and the timer call produces a false positive with CFI.
 961   # Do not use the "version" keyword argument to produce a better error.
 962   # with control-flow integrity.
 963   if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
 964     if get_option('slirp').enabled()
 965       error('Control-Flow Integrity requires libslirp 4.7.')
 966     else
 967       warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
 968       slirp = not_found
 969     endif
 970   endif
 971 endif
 972
 973 vde = not_found
 974 if not get_option('vde').auto() or have_system or have_tools
 975   vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
 976                            required: get_option('vde'))
 977 endif
 978 if vde.found() and not cc.links('''
 979    #include <libvdeplug.h>
 980    int main(void)
 981    {
 982      struct vde_open_args a = {0, 0, 0};
 983      char s[] = "";
 984      vde_open(s, s, &a);
 985      return 0;
 986    }''', dependencies: vde)
 987   vde = not_found
 988   if get_option('cap_ng').enabled()
 989     error('could not link libvdeplug')
 990   else
 991     warning('could not link libvdeplug, disabling')
 992   endif
 993 endif
 994
 995 pulse = not_found
 996 if not get_option('pa').auto() or (targetos == 'linux' and have_system)
 997   pulse = dependency('libpulse', required: get_option('pa'),
 998                      method: 'pkg-config')
 999 endif
1000 alsa = not_found
1001 if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
1002   alsa = dependency('alsa', required: get_option('alsa'),
1003                     method: 'pkg-config')
1004 endif
1005 jack = not_found
1006 if not get_option('jack').auto() or have_system
1007   jack = dependency('jack', required: get_option('jack'),
1008                     method: 'pkg-config')
1009 endif
1010 pipewire = not_found
1011 if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
1012   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
1013                     required: get_option('pipewire'),
1014                     method: 'pkg-config')
1015 endif
1016 sndio = not_found
1017 if not get_option('sndio').auto() or have_system
1018   sndio = dependency('sndio', required: get_option('sndio'),
1019                     method: 'pkg-config')
1020 endif
1021
1022 spice_protocol = not_found
1023 if not get_option('spice_protocol').auto() or have_system
1024   spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
1025                               required: get_option('spice_protocol'),
1026                               method: 'pkg-config')
1027 endif
1028 spice = not_found
1029 if not get_option('spice').auto() or have_system
1030   spice = dependency('spice-server', version: '>=0.14.0',
1031                      required: get_option('spice'),
1032                      method: 'pkg-config')
1033 endif
1034 spice_headers = spice.partial_dependency(compile_args: true, includes: true)
1035
1036 rt = cc.find_library('rt', required: false)
1037
1038 libiscsi = not_found
1039 if not get_option('libiscsi').auto() or have_block
1040   libiscsi = dependency('libiscsi', version: '>=1.9.0',
1041                          required: get_option('libiscsi'),
1042                          method: 'pkg-config')
1043 endif
1044 zstd = not_found
1045 if not get_option('zstd').auto() or have_block
1046   zstd = dependency('libzstd', version: '>=1.4.0',
1047                     required: get_option('zstd'),
1048                     method: 'pkg-config')
1049 endif
1050 virgl = not_found
1051
1052 have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
1053 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
1054   virgl = dependency('virglrenderer',
1055                      method: 'pkg-config',
1056                      required: get_option('virglrenderer'))
1057   if virgl.found()
1058     config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
1059                          cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
1060                                        prefix: '#include <virglrenderer.h>',
1061                                        dependencies: virgl))
1062   endif
1063 endif
1064 blkio = not_found
1065 if not get_option('blkio').auto() or have_block
1066   blkio = dependency('blkio',
1067                      method: 'pkg-config',
1068                      required: get_option('blkio'))
1069 endif
1070 curl = not_found
1071 if not get_option('curl').auto() or have_block
1072   curl = dependency('libcurl', version: '>=7.29.0',
1073                     method: 'pkg-config',
1074                     required: get_option('curl'))
1075 endif
1076 libudev = not_found
1077 if targetos == 'linux' and (have_system or have_tools)
1078   libudev = dependency('libudev',
1079                        method: 'pkg-config',
1080                        required: get_option('libudev'))
1081 endif
1082
1083 mpathlibs = [libudev]
1084 mpathpersist = not_found
1085 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1086   mpath_test_source = '''
1087     #include <libudev.h>
1088     #include <mpath_persist.h>
1089     unsigned mpath_mx_alloc_len = 1024;
1090     int logsink;
1091     static struct config *multipath_conf;
1092     extern struct udev *udev;
1093     extern struct config *get_multipath_config(void);
1094     extern void put_multipath_config(struct config *conf);
1095     struct udev *udev;
1096     struct config *get_multipath_config(void) { return multipath_conf; }
1097     void put_multipath_config(struct config *conf) { }
1098     int main(void) {
1099         udev = udev_new();
1100         multipath_conf = mpath_lib_init();
1101         return 0;
1102     }'''
1103   libmpathpersist = cc.find_library('mpathpersist',
1104                                     required: get_option('mpath'))
1105   if libmpathpersist.found()
1106     mpathlibs += libmpathpersist
1107     if get_option('prefer_static')
1108       mpathlibs += cc.find_library('devmapper',
1109                                      required: get_option('mpath'))
1110     endif
1111     mpathlibs += cc.find_library('multipath',
1112                                  required: get_option('mpath'))
1113     foreach lib: mpathlibs
1114       if not lib.found()
1115         mpathlibs = []
1116         break
1117       endif
1118     endforeach
1119     if mpathlibs.length() == 0
1120       msg = 'Dependencies missing for libmpathpersist'
1121     elif cc.links(mpath_test_source, dependencies: mpathlibs)
1122       mpathpersist = declare_dependency(dependencies: mpathlibs)
1123     else
1124       msg = 'Cannot detect libmpathpersist API'
1125     endif
1126     if not mpathpersist.found()
1127       if get_option('mpath').enabled()
1128         error(msg)
1129       else
1130         warning(msg + ', disabling')
1131       endif
1132     endif
1133   endif
1134 endif
1135
1136 iconv = not_found
1137 curses = not_found
1138 if have_system and get_option('curses').allowed()
1139   curses_test = '''
1140     #if defined(__APPLE__) || defined(__OpenBSD__)
1141     #define _XOPEN_SOURCE_EXTENDED 1
1142     #endif
1143     #include <locale.h>
1144     #include <curses.h>
1145     #include <wchar.h>
1146     int main(void) {
1147       wchar_t wch = L'w';
1148       setlocale(LC_ALL, "");
1149       resize_term(0, 0);
1150       addwstr(L"wide chars\n");
1151       addnwstr(&wch, 1);
1152       add_wch(WACS_DEGREE);
1153       return 0;
1154     }'''
1155
1156   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1157   curses = dependency(curses_dep_list,
1158                       required: false,
1159                       method: 'pkg-config')
1160   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1161   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1162   if curses.found()
1163     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1164       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1165                                   version: curses.version())
1166     else
1167       msg = 'curses package not usable'
1168       curses = not_found
1169     endif
1170   endif
1171   if not curses.found()
1172     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1173     if targetos != 'windows' and not has_curses_h
1174       message('Trying with /usr/include/ncursesw')
1175       curses_compile_args += ['-I/usr/include/ncursesw']
1176       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1177     endif
1178     if has_curses_h
1179       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1180       foreach curses_libname : curses_libname_list
1181         libcurses = cc.find_library(curses_libname,
1182                                     required: false)
1183         if libcurses.found()
1184           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1185             curses = declare_dependency(compile_args: curses_compile_args,
1186                                         dependencies: [libcurses])
1187             break
1188           else
1189             msg = 'curses library not usable'
1190           endif
1191         endif
1192       endforeach
1193     endif
1194   endif
1195   if get_option('iconv').allowed()
1196     foreach link_args : [ ['-liconv'], [] ]
1197       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1198       # We need to use libiconv if available because mixing libiconv's headers with
1199       # the system libc does not work.
1200       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1201       # included in the command line and libiconv will not be found.
1202       if cc.links('''
1203         #include <iconv.h>
1204         int main(void) {
1205           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1206           return conv != (iconv_t) -1;
1207         }''', args: link_args, dependencies: glib)
1208         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1209         break
1210       endif
1211     endforeach
1212   endif
1213   if curses.found() and not iconv.found()
1214     if get_option('iconv').enabled()
1215       error('iconv not available')
1216     endif
1217     msg = 'iconv required for curses UI but not available'
1218     curses = not_found
1219   endif
1220   if not curses.found() and msg != ''
1221     if get_option('curses').enabled()
1222       error(msg)
1223     else
1224       warning(msg + ', disabling')
1225     endif
1226   endif
1227 endif
1228
1229 brlapi = not_found
1230 if not get_option('brlapi').auto() or have_system
1231   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1232                          required: get_option('brlapi'))
1233   if brlapi.found() and not cc.links('''
1234      #include <brlapi.h>
1235      #include <stddef.h>
1236      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1237     brlapi = not_found
1238     if get_option('brlapi').enabled()
1239       error('could not link brlapi')
1240     else
1241       warning('could not link brlapi, disabling')
1242     endif
1243   endif
1244 endif
1245
1246 sdl = not_found
1247 if not get_option('sdl').auto() or have_system
1248   sdl = dependency('sdl2', required: get_option('sdl'))
1249   sdl_image = not_found
1250 endif
1251 if sdl.found()
1252   # Some versions of SDL have problems with -Wundef
1253   if not cc.compiles('''
1254                      #include <SDL.h>
1255                      #include <SDL_syswm.h>
1256                      int main(int argc, char *argv[]) { return 0; }
1257                      ''', dependencies: sdl, args: '-Werror=undef')
1258     sdl = declare_dependency(compile_args: '-Wno-undef',
1259                              dependencies: sdl,
1260                              version: sdl.version())
1261   endif
1262   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1263                          method: 'pkg-config')
1264 else
1265   if get_option('sdl_image').enabled()
1266     error('sdl-image required, but SDL was @0@'.format(
1267           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1268   endif
1269   sdl_image = not_found
1270 endif
1271
1272 rbd = not_found
1273 if not get_option('rbd').auto() or have_block
1274   librados = cc.find_library('rados', required: get_option('rbd'))
1275   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1276                            required: get_option('rbd'))
1277   if librados.found() and librbd.found()
1278     if cc.links('''
1279       #include <stdio.h>
1280       #include <rbd/librbd.h>
1281       int main(void) {
1282         rados_t cluster;
1283         rados_create(&cluster, NULL);
1284         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1285         #error
1286         #endif
1287         return 0;
1288       }''', dependencies: [librbd, librados])
1289       rbd = declare_dependency(dependencies: [librbd, librados])
1290     elif get_option('rbd').enabled()
1291       error('librbd >= 1.12.0 required')
1292     else
1293       warning('librbd >= 1.12.0 not found, disabling')
1294     endif
1295   endif
1296 endif
1297
1298 glusterfs = not_found
1299 glusterfs_ftruncate_has_stat = false
1300 glusterfs_iocb_has_stat = false
1301 if not get_option('glusterfs').auto() or have_block
1302   glusterfs = dependency('glusterfs-api', version: '>=3',
1303                          required: get_option('glusterfs'),
1304                          method: 'pkg-config')
1305   if glusterfs.found()
1306     glusterfs_ftruncate_has_stat = cc.links('''
1307       #include <glusterfs/api/glfs.h>
1308
1309       int
1310       main(void)
1311       {
1312           /* new glfs_ftruncate() passes two additional args */
1313           return glfs_ftruncate(NULL, 0, NULL, NULL);
1314       }
1315     ''', dependencies: glusterfs)
1316     glusterfs_iocb_has_stat = cc.links('''
1317       #include <glusterfs/api/glfs.h>
1318
1319       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1320       static void
1321       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1322       {}
1323
1324       int
1325       main(void)
1326       {
1327           glfs_io_cbk iocb = &glusterfs_iocb;
1328           iocb(NULL, 0 , NULL, NULL, NULL);
1329           return 0;
1330       }
1331     ''', dependencies: glusterfs)
1332   endif
1333 endif
1334
1335 libssh = not_found
1336 if not get_option('libssh').auto() or have_block
1337   libssh = dependency('libssh', version: '>=0.8.7',
1338                     method: 'pkg-config',
1339                     required: get_option('libssh'))
1340 endif
1341
1342 libbzip2 = not_found
1343 if not get_option('bzip2').auto() or have_block
1344   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1345                              required: get_option('bzip2'))
1346   if libbzip2.found() and not cc.links('''
1347      #include <bzlib.h>
1348      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1349     libbzip2 = not_found
1350     if get_option('bzip2').enabled()
1351       error('could not link libbzip2')
1352     else
1353       warning('could not link libbzip2, disabling')
1354     endif
1355   endif
1356 endif
1357
1358 liblzfse = not_found
1359 if not get_option('lzfse').auto() or have_block
1360   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1361                              required: get_option('lzfse'))
1362 endif
1363 if liblzfse.found() and not cc.links('''
1364    #include <lzfse.h>
1365    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1366   liblzfse = not_found
1367   if get_option('lzfse').enabled()
1368     error('could not link liblzfse')
1369   else
1370     warning('could not link liblzfse, disabling')
1371   endif
1372 endif
1373
1374 oss = not_found
1375 if get_option('oss').allowed() and have_system
1376   if not cc.has_header('sys/soundcard.h')
1377     # not found
1378   elif targetos == 'netbsd'
1379     oss = cc.find_library('ossaudio', required: get_option('oss'))
1380   else
1381     oss = declare_dependency()
1382   endif
1383
1384   if not oss.found()
1385     if get_option('oss').enabled()
1386       error('OSS not found')
1387     endif
1388   endif
1389 endif
1390 dsound = not_found
1391 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1392   if cc.has_header('dsound.h')
1393     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1394   endif
1395
1396   if not dsound.found()
1397     if get_option('dsound').enabled()
1398       error('DirectSound not found')
1399     endif
1400   endif
1401 endif
1402
1403 coreaudio = not_found
1404 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1405   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1406                          required: get_option('coreaudio'))
1407 endif
1408
1409 opengl = not_found
1410 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1411   epoxy = dependency('epoxy', method: 'pkg-config',
1412                       required: get_option('opengl'))
1413   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1414     opengl = epoxy
1415   elif get_option('opengl').enabled()
1416     error('epoxy/egl.h not found')
1417   endif
1418 endif
1419 gbm = not_found
1420 if (have_system or have_tools) and (virgl.found() or opengl.found())
1421   gbm = dependency('gbm', method: 'pkg-config', required: false)
1422 endif
1423 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1424
1425 gnutls = not_found
1426 gnutls_crypto = not_found
1427 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1428   # For general TLS support our min gnutls matches
1429   # that implied by our platform support matrix
1430   #
1431   # For the crypto backends, we look for a newer
1432   # gnutls:
1433   #
1434   #   Version 3.6.8  is needed to get XTS
1435   #   Version 3.6.13 is needed to get PBKDF
1436   #   Version 3.6.14 is needed to get HW accelerated XTS
1437   #
1438   # If newer enough gnutls isn't available, we can
1439   # still use a different crypto backend to satisfy
1440   # the platform support requirements
1441   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1442                              method: 'pkg-config',
1443                              required: false)
1444   if gnutls_crypto.found()
1445     gnutls = gnutls_crypto
1446   else
1447     # Our min version if all we need is TLS
1448     gnutls = dependency('gnutls', version: '>=3.5.18',
1449                         method: 'pkg-config',
1450                         required: get_option('gnutls'))
1451   endif
1452 endif
1453
1454 # We prefer use of gnutls for crypto, unless the options
1455 # explicitly asked for nettle or gcrypt.
1456 #
1457 # If gnutls isn't available for crypto, then we'll prefer
1458 # gcrypt over nettle for performance reasons.
1459 gcrypt = not_found
1460 nettle = not_found
1461 hogweed = not_found
1462 xts = 'none'
1463
1464 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1465   error('Only one of gcrypt & nettle can be enabled')
1466 endif
1467
1468 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1469 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1470   gnutls_crypto = not_found
1471 endif
1472
1473 if not gnutls_crypto.found()
1474   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1475     gcrypt = dependency('libgcrypt', version: '>=1.8',
1476                         method: 'config-tool',
1477                         required: get_option('gcrypt'))
1478     # Debian has removed -lgpg-error from libgcrypt-config
1479     # as it "spreads unnecessary dependencies" which in
1480     # turn breaks static builds...
1481     if gcrypt.found() and get_option('prefer_static')
1482       gcrypt = declare_dependency(dependencies:
1483         [gcrypt,
1484          cc.find_library('gpg-error', required: true)],
1485         version: gcrypt.version())
1486     endif
1487   endif
1488   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1489     nettle = dependency('nettle', version: '>=3.4',
1490                         method: 'pkg-config',
1491                         required: get_option('nettle'))
1492     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1493       xts = 'private'
1494     endif
1495   endif
1496 endif
1497
1498 gmp = dependency('gmp', required: false, method: 'pkg-config')
1499 if nettle.found() and gmp.found()
1500   hogweed = dependency('hogweed', version: '>=3.4',
1501                        method: 'pkg-config',
1502                        required: get_option('nettle'))
1503 endif
1504
1505
1506 gtk = not_found
1507 gtkx11 = not_found
1508 vte = not_found
1509 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1510
1511 if not get_option('gtk').auto() or have_system
1512   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1513                    method: 'pkg-config',
1514                    required: get_option('gtk'))
1515   if gtk.found()
1516     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1517                         method: 'pkg-config',
1518                         required: false)
1519     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1520                              version: gtk.version())
1521
1522     if not get_option('vte').auto() or have_system
1523       vte = dependency('vte-2.91',
1524                        method: 'pkg-config',
1525                        required: get_option('vte'))
1526     endif
1527   elif have_gtk_clipboard
1528     error('GTK clipboard requested, but GTK not found')
1529   endif
1530 endif
1531
1532 x11 = not_found
1533 if gtkx11.found()
1534   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1535 endif
1536 png = not_found
1537 if get_option('png').allowed() and have_system
1538    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1539                     method: 'pkg-config')
1540 endif
1541 vnc = not_found
1542 jpeg = not_found
1543 sasl = not_found
1544 if get_option('vnc').allowed() and have_system
1545   vnc = declare_dependency() # dummy dependency
1546   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1547                     method: 'pkg-config')
1548   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1549                          required: get_option('vnc_sasl'))
1550   if sasl.found()
1551     sasl = declare_dependency(dependencies: sasl,
1552                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1553   endif
1554 endif
1555
1556 pam = not_found
1557 if not get_option('auth_pam').auto() or have_system
1558   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1559                         required: get_option('auth_pam'))
1560 endif
1561 if pam.found() and not cc.links('''
1562    #include <stddef.h>
1563    #include <security/pam_appl.h>
1564    int main(void) {
1565      const char *service_name = "qemu";
1566      const char *user = "frank";
1567      const struct pam_conv pam_conv = { 0 };
1568      pam_handle_t *pamh = NULL;
1569      pam_start(service_name, user, &pam_conv, &pamh);
1570      return 0;
1571    }''', dependencies: pam)
1572   pam = not_found
1573   if get_option('auth_pam').enabled()
1574     error('could not link libpam')
1575   else
1576     warning('could not link libpam, disabling')
1577   endif
1578 endif
1579
1580 snappy = not_found
1581 if not get_option('snappy').auto() or have_system
1582   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1583                            required: get_option('snappy'))
1584 endif
1585 if snappy.found() and not cc.links('''
1586    #include <snappy-c.h>
1587    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1588   snappy = not_found
1589   if get_option('snappy').enabled()
1590     error('could not link libsnappy')
1591   else
1592     warning('could not link libsnappy, disabling')
1593   endif
1594 endif
1595
1596 lzo = not_found
1597 if not get_option('lzo').auto() or have_system
1598   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1599                         required: get_option('lzo'))
1600 endif
1601 if lzo.found() and not cc.links('''
1602    #include <lzo/lzo1x.h>
1603    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1604   lzo = not_found
1605   if get_option('lzo').enabled()
1606     error('could not link liblzo2')
1607   else
1608     warning('could not link liblzo2, disabling')
1609   endif
1610 endif
1611
1612 numa = not_found
1613 if not get_option('numa').auto() or have_system or have_tools
1614   numa = cc.find_library('numa', has_headers: ['numa.h'],
1615                               required: get_option('numa'))
1616 endif
1617 if numa.found() and not cc.links('''
1618    #include <numa.h>
1619    int main(void) { return numa_available(); }
1620    ''', dependencies: numa)
1621   numa = not_found
1622   if get_option('numa').enabled()
1623     error('could not link numa')
1624   else
1625     warning('could not link numa, disabling')
1626   endif
1627 endif
1628
1629 rdma = not_found
1630 if not get_option('rdma').auto() or have_system
1631   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1632   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1633                                required: get_option('rdma')),
1634                cc.find_library('ibverbs', required: get_option('rdma')),
1635                libumad]
1636   rdma = declare_dependency(dependencies: rdma_libs)
1637   foreach lib: rdma_libs
1638     if not lib.found()
1639       rdma = not_found
1640     endif
1641   endforeach
1642 endif
1643
1644 xen = not_found
1645 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1646   xencontrol = dependency('xencontrol', required: false,
1647                           method: 'pkg-config')
1648   if xencontrol.found()
1649     xen_pc = declare_dependency(version: xencontrol.version(),
1650       dependencies: [
1651         xencontrol,
1652         # disabler: true makes xen_pc.found() return false if any is not found
1653         dependency('xenstore', required: false,
1654                    method: 'pkg-config',
1655                    disabler: true),
1656         dependency('xenforeignmemory', required: false,
1657                    method: 'pkg-config',
1658                    disabler: true),
1659         dependency('xengnttab', required: false,
1660                    method: 'pkg-config',
1661                    disabler: true),
1662         dependency('xenevtchn', required: false,
1663                    method: 'pkg-config',
1664                    disabler: true),
1665         dependency('xendevicemodel', required: false,
1666                    method: 'pkg-config',
1667                    disabler: true),
1668         # optional, no "disabler: true"
1669         dependency('xentoolcore', required: false,
1670                    method: 'pkg-config')])
1671     if xen_pc.found()
1672       xen = xen_pc
1673     endif
1674   endif
1675   if not xen.found()
1676     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
1677     xen_libs = {
1678       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1679       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1680       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1681       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1682       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1683     }
1684     xen_deps = {}
1685     foreach ver: xen_tests
1686       # cache the various library tests to avoid polluting the logs
1687       xen_test_deps = []
1688       foreach l: xen_libs[ver]
1689         if l not in xen_deps
1690           xen_deps += { l: cc.find_library(l, required: false) }
1691         endif
1692         xen_test_deps += xen_deps[l]
1693       endforeach
1694
1695       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1696       xen_version = ver.split('.')
1697       xen_ctrl_version = xen_version[0] + \
1698         ('0' + xen_version[1]).substring(-2) + \
1699         ('0' + xen_version[2]).substring(-2)
1700       if cc.links(files('scripts/xen-detect.c'),
1701                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1702                   dependencies: xen_test_deps)
1703         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1704         break
1705       endif
1706     endforeach
1707   endif
1708   if xen.found()
1709     accelerators += 'CONFIG_XEN'
1710   elif get_option('xen').enabled()
1711     error('could not compile and link Xen test program')
1712   endif
1713 endif
1714 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1715   .require(xen.found(),
1716            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1717   .require(targetos == 'linux',
1718            error_message: 'Xen PCI passthrough not available on this platform') \
1719   .require(cpu == 'x86'  or cpu == 'x86_64',
1720            error_message: 'Xen PCI passthrough not available on this platform') \
1721   .allowed()
1722
1723
1724 cacard = not_found
1725 if not get_option('smartcard').auto() or have_system
1726   cacard = dependency('libcacard', required: get_option('smartcard'),
1727                       version: '>=2.5.1', method: 'pkg-config')
1728 endif
1729 u2f = not_found
1730 if have_system
1731   u2f = dependency('u2f-emu', required: get_option('u2f'),
1732                    method: 'pkg-config')
1733 endif
1734 canokey = not_found
1735 if have_system
1736   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1737                    method: 'pkg-config')
1738 endif
1739 usbredir = not_found
1740 if not get_option('usb_redir').auto() or have_system
1741   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1742                         version: '>=0.6', method: 'pkg-config')
1743 endif
1744 libusb = not_found
1745 if not get_option('libusb').auto() or have_system
1746   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1747                       version: '>=1.0.13', method: 'pkg-config')
1748 endif
1749
1750 libpmem = not_found
1751 if not get_option('libpmem').auto() or have_system
1752   libpmem = dependency('libpmem', required: get_option('libpmem'),
1753                        method: 'pkg-config')
1754 endif
1755 libdaxctl = not_found
1756 if not get_option('libdaxctl').auto() or have_system
1757   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1758                          version: '>=57', method: 'pkg-config')
1759 endif
1760 tasn1 = not_found
1761 if gnutls.found()
1762   tasn1 = dependency('libtasn1',
1763                      method: 'pkg-config')
1764 endif
1765 keyutils = not_found
1766 if get_option('keyring').enabled()
1767   keyutils = dependency('libkeyutils', required: false, method: 'pkg-config')
1768 endif
1769
1770 has_gettid = cc.has_function('gettid')
1771
1772 # libselinux
1773 selinux = dependency('libselinux',
1774                      required: get_option('selinux'),
1775                      method: 'pkg-config')
1776
1777 # Malloc tests
1778
1779 malloc = []
1780 if get_option('malloc') == 'system'
1781   has_malloc_trim = \
1782     get_option('malloc_trim').allowed() and \
1783     cc.has_function('malloc_trim', prefix: '#include <malloc.h>')
1784 else
1785   has_malloc_trim = false
1786   malloc = cc.find_library(get_option('malloc'), required: true)
1787 endif
1788 if not has_malloc_trim and get_option('malloc_trim').enabled()
1789   if get_option('malloc') == 'system'
1790     error('malloc_trim not available on this platform.')
1791   else
1792     error('malloc_trim not available with non-libc memory allocator')
1793   endif
1794 endif
1795
1796 gnu_source_prefix = '''
1797   #ifndef _GNU_SOURCE
1798   #define _GNU_SOURCE
1799   #endif
1800 '''
1801
1802 # Check whether the glibc provides STATX_BASIC_STATS
1803
1804 has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_source_prefix)
1805
1806 # Check whether statx() provides mount ID information
1807
1808 has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
1809
1810 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1811   .require(targetos == 'linux',
1812            error_message: 'vhost_user_blk_server requires linux') \
1813   .require(have_vhost_user,
1814            error_message: 'vhost_user_blk_server requires vhost-user support') \
1815   .disable_auto_if(not have_tools and not have_system) \
1816   .allowed()
1817
1818 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1819   error('Cannot enable fuse-lseek while fuse is disabled')
1820 endif
1821
1822 fuse = dependency('fuse3', required: get_option('fuse'),
1823                   version: '>=3.1', method: 'pkg-config')
1824
1825 fuse_lseek = not_found
1826 if get_option('fuse_lseek').allowed()
1827   if fuse.version().version_compare('>=3.8')
1828     # Dummy dependency
1829     fuse_lseek = declare_dependency()
1830   elif get_option('fuse_lseek').enabled()
1831     if fuse.found()
1832       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1833     else
1834       error('fuse-lseek requires libfuse, which was not found')
1835     endif
1836   endif
1837 endif
1838
1839 have_libvduse = (targetos == 'linux')
1840 if get_option('libvduse').enabled()
1841     if targetos != 'linux'
1842         error('libvduse requires linux')
1843     endif
1844 elif get_option('libvduse').disabled()
1845     have_libvduse = false
1846 endif
1847
1848 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1849 if get_option('vduse_blk_export').enabled()
1850     if targetos != 'linux'
1851         error('vduse_blk_export requires linux')
1852     elif not have_libvduse
1853         error('vduse_blk_export requires libvduse support')
1854     endif
1855 elif get_option('vduse_blk_export').disabled()
1856     have_vduse_blk_export = false
1857 endif
1858
1859 # libbpf
1860 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1861 if libbpf.found() and not cc.links('''
1862    #include <bpf/libbpf.h>
1863    int main(void)
1864    {
1865      bpf_object__destroy_skeleton(NULL);
1866      return 0;
1867    }''', dependencies: libbpf)
1868   libbpf = not_found
1869   if get_option('bpf').enabled()
1870     error('libbpf skeleton test failed')
1871   else
1872     warning('libbpf skeleton test failed, disabling')
1873   endif
1874 endif
1875
1876 # libxdp
1877 libxdp = not_found
1878 if not get_option('af_xdp').auto() or have_system
1879     libxdp = dependency('libxdp', required: get_option('af_xdp'),
1880                         version: '>=1.4.0', method: 'pkg-config')
1881 endif
1882
1883 # libdw
1884 libdw = not_found
1885 if not get_option('libdw').auto() or \
1886         (not get_option('prefer_static') and (have_system or have_user))
1887     libdw = dependency('libdw',
1888                        method: 'pkg-config',
1889                        required: get_option('libdw'))
1890 endif
1891
1892 #################
1893 # config-host.h #
1894 #################
1895
1896 audio_drivers_selected = []
1897 if have_system
1898   audio_drivers_available = {
1899     'alsa': alsa.found(),
1900     'coreaudio': coreaudio.found(),
1901     'dsound': dsound.found(),
1902     'jack': jack.found(),
1903     'oss': oss.found(),
1904     'pa': pulse.found(),
1905     'pipewire': pipewire.found(),
1906     'sdl': sdl.found(),
1907     'sndio': sndio.found(),
1908   }
1909   foreach k, v: audio_drivers_available
1910     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1911   endforeach
1912
1913   # Default to native drivers first, OSS second, SDL third
1914   audio_drivers_priority = \
1915     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1916     (targetos == 'linux' ? [] : [ 'sdl' ])
1917   audio_drivers_default = []
1918   foreach k: audio_drivers_priority
1919     if audio_drivers_available[k]
1920       audio_drivers_default += k
1921     endif
1922   endforeach
1923
1924   foreach k: get_option('audio_drv_list')
1925     if k == 'default'
1926       audio_drivers_selected += audio_drivers_default
1927     elif not audio_drivers_available[k]
1928       error('Audio driver "@0@" not available.'.format(k))
1929     else
1930       audio_drivers_selected += k
1931     endif
1932   endforeach
1933 endif
1934 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1935                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1936
1937 if get_option('cfi')
1938   cfi_flags=[]
1939   # Check for dependency on LTO
1940   if not get_option('b_lto')
1941     error('Selected Control-Flow Integrity but LTO is disabled')
1942   endif
1943   if enable_modules
1944     error('Selected Control-Flow Integrity is not compatible with modules')
1945   endif
1946   # Check for cfi flags. CFI requires LTO so we can't use
1947   # get_supported_arguments, but need a more complex "compiles" which allows
1948   # custom arguments
1949   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1950                  args: ['-flto', '-fsanitize=cfi-icall'] )
1951     cfi_flags += '-fsanitize=cfi-icall'
1952   else
1953     error('-fsanitize=cfi-icall is not supported by the compiler')
1954   endif
1955   if cc.compiles('int main () { return 0; }',
1956                  name: '-fsanitize-cfi-icall-generalize-pointers',
1957                  args: ['-flto', '-fsanitize=cfi-icall',
1958                         '-fsanitize-cfi-icall-generalize-pointers'] )
1959     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1960   else
1961     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1962   endif
1963   if get_option('cfi_debug')
1964     if cc.compiles('int main () { return 0; }',
1965                    name: '-fno-sanitize-trap=cfi-icall',
1966                    args: ['-flto', '-fsanitize=cfi-icall',
1967                           '-fno-sanitize-trap=cfi-icall'] )
1968       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1969     else
1970       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1971     endif
1972   endif
1973   add_global_arguments(cfi_flags, native: false, language: all_languages)
1974   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
1975 endif
1976
1977 have_host_block_device = (targetos != 'darwin' or
1978     cc.has_header('IOKit/storage/IOMedia.h'))
1979
1980 dbus_display = get_option('dbus_display') \
1981   .require(gio.version().version_compare('>=2.64'),
1982            error_message: '-display dbus requires glib>=2.64') \
1983   .require(gdbus_codegen.found(),
1984            error_message: gdbus_codegen_error.format('-display dbus')) \
1985   .allowed()
1986
1987 have_virtfs = get_option('virtfs') \
1988     .require(targetos == 'linux' or targetos == 'darwin',
1989              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
1990     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
1991              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
1992     .require(targetos == 'darwin' or libattr.found(),
1993              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
1994     .disable_auto_if(not have_tools and not have_system) \
1995     .allowed()
1996
1997 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
1998     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
1999     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
2000     .disable_auto_if(not have_tools) \
2001     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
2002     .allowed()
2003
2004 if get_option('block_drv_ro_whitelist') == ''
2005   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
2006 else
2007   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
2008         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2009 endif
2010 if get_option('block_drv_rw_whitelist') == ''
2011   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2012 else
2013   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2014         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2015 endif
2016
2017 foreach k : get_option('trace_backends')
2018   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2019 endforeach
2020 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2021 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2022 if iasl.found()
2023   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2024 endif
2025 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2026 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2027 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2028 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2029 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2030
2031 qemu_firmwarepath = ''
2032 foreach k : get_option('qemu_firmwarepath')
2033   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2034 endforeach
2035 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2036
2037 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2038 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2039 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2040 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2041 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2042 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2043
2044 if enable_modules
2045   config_host_data.set('CONFIG_STAMP', run_command(
2046       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2047       meson.project_version(), get_option('pkgversion'), '--',
2048       meson.current_source_dir() / 'configure',
2049       capture: true, check: true).stdout().strip())
2050 endif
2051
2052 have_slirp_smbd = get_option('slirp_smbd') \
2053   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2054   .allowed()
2055 if have_slirp_smbd
2056   smbd_path = get_option('smbd')
2057   if smbd_path == ''
2058     smbd_path = (targetos == 'sunos' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2059   endif
2060   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2061 endif
2062
2063 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2064
2065 if get_option('module_upgrades') and not enable_modules
2066   error('Cannot enable module-upgrades as modules are not enabled')
2067 endif
2068 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2069
2070 config_host_data.set('CONFIG_ATTR', libattr.found())
2071 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2072 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2073 config_host_data.set('CONFIG_BSD', targetos in bsd_oses)
2074 config_host_data.set('CONFIG_COCOA', cocoa.found())
2075 config_host_data.set('CONFIG_DARWIN', targetos == 'darwin')
2076 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2077 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2078 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2079 config_host_data.set('CONFIG_LINUX', targetos == 'linux')
2080 config_host_data.set('CONFIG_POSIX', targetos != 'windows')
2081 config_host_data.set('CONFIG_WIN32', targetos == 'windows')
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_AF_XDP', libxdp.found())
2110 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2111 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2112 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2113 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2114 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2115 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2116 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2117 config_host_data.set('CONFIG_MODULES', enable_modules)
2118 config_host_data.set('CONFIG_NUMA', numa.found())
2119 if numa.found()
2120   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2121                        cc.has_function('numa_has_preferred_many',
2122                                        dependencies: numa))
2123 endif
2124 config_host_data.set('CONFIG_OPENGL', opengl.found())
2125 config_host_data.set('CONFIG_PLUGIN', get_option('plugins'))
2126 config_host_data.set('CONFIG_RBD', rbd.found())
2127 config_host_data.set('CONFIG_RDMA', rdma.found())
2128 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2129 config_host_data.set('CONFIG_SDL', sdl.found())
2130 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2131 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2132 if seccomp.found()
2133   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2134 endif
2135 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2136 config_host_data.set('CONFIG_SOLARIS', targetos == 'sunos')
2137 if get_option('tcg').allowed()
2138   config_host_data.set('CONFIG_TCG', 1)
2139   config_host_data.set('CONFIG_TCG_INTERPRETER', tcg_arch == 'tci')
2140 endif
2141 config_host_data.set('CONFIG_TPM', have_tpm)
2142 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2143 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2144 config_host_data.set('CONFIG_VDE', vde.found())
2145 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2146 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2147 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2148 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2149 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2150 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2151 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2152 config_host_data.set('CONFIG_VMNET', vmnet.found())
2153 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2154 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2155 config_host_data.set('CONFIG_PNG', png.found())
2156 config_host_data.set('CONFIG_VNC', vnc.found())
2157 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2158 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2159 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2160 config_host_data.set('CONFIG_VTE', vte.found())
2161 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2162 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2163 config_host_data.set('CONFIG_GETTID', has_gettid)
2164 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2165 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2166 config_host_data.set('CONFIG_TASN1', tasn1.found())
2167 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2168 config_host_data.set('CONFIG_NETTLE', nettle.found())
2169 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2170 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2171 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2172 config_host_data.set('CONFIG_STATX', has_statx)
2173 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2174 config_host_data.set('CONFIG_ZSTD', zstd.found())
2175 config_host_data.set('CONFIG_FUSE', fuse.found())
2176 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2177 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2178 if spice_protocol.found()
2179 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2180 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2181 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2182 endif
2183 config_host_data.set('CONFIG_SPICE', spice.found())
2184 config_host_data.set('CONFIG_X11', x11.found())
2185 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2186 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2187 config_host_data.set('CONFIG_SELINUX', selinux.found())
2188 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2189 config_host_data.set('CONFIG_LIBDW', libdw.found())
2190 if xen.found()
2191   # protect from xen.version() having less than three components
2192   xen_version = xen.version().split('.') + ['0', '0']
2193   xen_ctrl_version = xen_version[0] + \
2194     ('0' + xen_version[1]).substring(-2) + \
2195     ('0' + xen_version[2]).substring(-2)
2196   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2197 endif
2198 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2199 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2200 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2201 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2202
2203 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2204 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2205
2206 have_coroutine_pool = get_option('coroutine_pool')
2207 if get_option('debug_stack_usage') and have_coroutine_pool
2208   message('Disabling coroutine pool to measure stack usage')
2209   have_coroutine_pool = false
2210 endif
2211 config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2212 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2213 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2214 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2215 config_host_data.set('CONFIG_DEBUG_TCG', get_option('debug_tcg'))
2216 config_host_data.set('CONFIG_GPROF', get_option('gprof'))
2217 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2218 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2219 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2220
2221 # has_header
2222 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2223 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2224 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2225 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2226 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2227 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2228 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2229 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2230 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2231 if targetos == 'windows'
2232   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2233 endif
2234
2235 # has_function
2236 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2237 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2238 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2239 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2240 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2241 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2242 config_host_data.set('CONFIG_GETCPU', cc.has_function('getcpu', prefix: gnu_source_prefix))
2243 config_host_data.set('CONFIG_SCHED_GETCPU', cc.has_function('sched_getcpu', prefix: '#include <sched.h>'))
2244 # Note that we need to specify prefix: here to avoid incorrectly
2245 # thinking that Windows has posix_memalign()
2246 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2247 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2248 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2249 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2250 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2251 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2252 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2253 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2254 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2255 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2256 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2257 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2258 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2259 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2260 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2261 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2262 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2263 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2264 if rbd.found()
2265   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2266                        cc.has_function('rbd_namespace_exists',
2267                                        dependencies: rbd,
2268                                        prefix: '#include <rbd/librbd.h>'))
2269 endif
2270 if rdma.found()
2271   config_host_data.set('HAVE_IBV_ADVISE_MR',
2272                        cc.has_function('ibv_advise_mr',
2273                                        dependencies: rdma,
2274                                        prefix: '#include <infiniband/verbs.h>'))
2275 endif
2276
2277 have_asan_fiber = false
2278 if get_option('sanitizers') and \
2279    not cc.has_function('__sanitizer_start_switch_fiber',
2280                          args: '-fsanitize=address',
2281                          prefix: '#include <sanitizer/asan_interface.h>')
2282   warning('Missing ASAN due to missing fiber annotation interface')
2283   warning('Without code annotation, the report may be inferior.')
2284 else
2285   have_asan_fiber = true
2286 endif
2287 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2288
2289 # has_header_symbol
2290 config_host_data.set('CONFIG_BLKZONED',
2291                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2292 config_host_data.set('CONFIG_EPOLL_CREATE1',
2293                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2294 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2295                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2296                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2297 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2298                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2299 config_host_data.set('CONFIG_FIEMAP',
2300                      cc.has_header('linux/fiemap.h') and
2301                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2302 config_host_data.set('CONFIG_GETRANDOM',
2303                      cc.has_function('getrandom') and
2304                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2305 config_host_data.set('CONFIG_INOTIFY',
2306                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2307 config_host_data.set('CONFIG_INOTIFY1',
2308                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2309 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2310                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2311 config_host_data.set('CONFIG_RTNETLINK',
2312                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2313 config_host_data.set('CONFIG_SYSMACROS',
2314                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2315 config_host_data.set('HAVE_OPTRESET',
2316                      cc.has_header_symbol('getopt.h', 'optreset'))
2317 config_host_data.set('HAVE_IPPROTO_MPTCP',
2318                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2319
2320 # has_member
2321 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2322                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2323                                    prefix: '#include <signal.h>'))
2324 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2325                      cc.has_member('struct stat', 'st_atim',
2326                                    prefix: '#include <sys/stat.h>'))
2327 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2328                      cc.has_member('struct blk_zone', 'capacity',
2329                                    prefix: '#include <linux/blkzoned.h>'))
2330
2331 # has_type
2332 config_host_data.set('CONFIG_IOVEC',
2333                      cc.has_type('struct iovec',
2334                                  prefix: '#include <sys/uio.h>'))
2335 config_host_data.set('HAVE_UTMPX',
2336                      cc.has_type('struct utmpx',
2337                                  prefix: '#include <utmpx.h>'))
2338
2339 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2340   #include <sys/eventfd.h>
2341   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2342 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2343   #include <unistd.h>
2344   int main(void) {
2345   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2346   return fdatasync(0);
2347   #else
2348   #error Not supported
2349   #endif
2350   }'''))
2351
2352 has_madvise = cc.links(gnu_source_prefix + '''
2353   #include <sys/types.h>
2354   #include <sys/mman.h>
2355   #include <stddef.h>
2356   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2357 missing_madvise_proto = false
2358 if has_madvise
2359   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2360   # but forget to prototype it. In this case, has_madvise will be true (the
2361   # test program links despite a compile warning). To detect the
2362   # missing-prototype case, we try again with a definitely-bogus prototype.
2363   # This will only compile if the system headers don't provide the prototype;
2364   # otherwise the conflicting prototypes will cause a compiler error.
2365   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2366     #include <sys/types.h>
2367     #include <sys/mman.h>
2368     #include <stddef.h>
2369     extern int madvise(int);
2370     int main(void) { return madvise(0); }''')
2371 endif
2372 config_host_data.set('CONFIG_MADVISE', has_madvise)
2373 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2374
2375 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2376   #include <sys/mman.h>
2377   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2378 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2379   #include <fcntl.h>
2380   #if !defined(AT_EMPTY_PATH)
2381   # error missing definition
2382   #else
2383   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2384   #endif'''))
2385 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2386   #include <sys/mman.h>
2387   #include <stddef.h>
2388   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2389
2390 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2391   #include <pthread.h>
2392
2393   static void *f(void *p) { return NULL; }
2394   int main(void)
2395   {
2396     pthread_t thread;
2397     pthread_create(&thread, 0, f, 0);
2398     pthread_setname_np(thread, "QEMU");
2399     return 0;
2400   }''', dependencies: threads))
2401 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2402   #include <pthread.h>
2403
2404   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2405   int main(void)
2406   {
2407     pthread_t thread;
2408     pthread_create(&thread, 0, f, 0);
2409     return 0;
2410   }''', dependencies: threads))
2411 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2412   #include <pthread.h>
2413   #include <pthread_np.h>
2414
2415   static void *f(void *p) { return NULL; }
2416   int main(void)
2417   {
2418     pthread_t thread;
2419     pthread_create(&thread, 0, f, 0);
2420     pthread_set_name_np(thread, "QEMU");
2421     return 0;
2422   }''', dependencies: threads))
2423 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2424   #include <pthread.h>
2425   #include <time.h>
2426
2427   int main(void)
2428   {
2429     pthread_condattr_t attr
2430     pthread_condattr_init(&attr);
2431     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2432     return 0;
2433   }''', dependencies: threads))
2434 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2435   #include <pthread.h>
2436
2437   static void *f(void *p) { return NULL; }
2438   int main(void)
2439   {
2440     int setsize = CPU_ALLOC_SIZE(64);
2441     pthread_t thread;
2442     cpu_set_t *cpuset;
2443     pthread_create(&thread, 0, f, 0);
2444     cpuset = CPU_ALLOC(64);
2445     CPU_ZERO_S(setsize, cpuset);
2446     pthread_setaffinity_np(thread, setsize, cpuset);
2447     pthread_getaffinity_np(thread, setsize, cpuset);
2448     CPU_FREE(cpuset);
2449     return 0;
2450   }''', dependencies: threads))
2451 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2452   #include <sys/signalfd.h>
2453   #include <stddef.h>
2454   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2455 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2456   #include <unistd.h>
2457   #include <fcntl.h>
2458   #include <limits.h>
2459
2460   int main(void)
2461   {
2462     int len, fd = 0;
2463     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2464     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2465     return 0;
2466   }'''))
2467
2468 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2469   #include <sys/mman.h>
2470   int main(void) {
2471     return mlockall(MCL_FUTURE);
2472   }'''))
2473
2474 have_l2tpv3 = false
2475 if get_option('l2tpv3').allowed() and have_system
2476   have_l2tpv3 = cc.has_type('struct mmsghdr',
2477     prefix: gnu_source_prefix + '''
2478       #include <sys/socket.h>
2479       #include <linux/ip.h>''')
2480 endif
2481 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2482
2483 have_netmap = false
2484 if get_option('netmap').allowed() and have_system
2485   have_netmap = cc.compiles('''
2486     #include <inttypes.h>
2487     #include <net/if.h>
2488     #include <net/netmap.h>
2489     #include <net/netmap_user.h>
2490     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2491     #error
2492     #endif
2493     int main(void) { return 0; }''')
2494   if not have_netmap and get_option('netmap').enabled()
2495     error('Netmap headers not available')
2496   endif
2497 endif
2498 config_host_data.set('CONFIG_NETMAP', have_netmap)
2499
2500 # Work around a system header bug with some kernel/XFS header
2501 # versions where they both try to define 'struct fsxattr':
2502 # xfs headers will not try to redefine structs from linux headers
2503 # if this macro is set.
2504 config_host_data.set('HAVE_FSXATTR', cc.links('''
2505   #include <linux/fs.h>
2506   struct fsxattr foo;
2507   int main(void) {
2508     return 0;
2509   }'''))
2510
2511 # Some versions of Mac OS X incorrectly define SIZE_MAX
2512 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2513     #include <stdint.h>
2514     #include <stdio.h>
2515     int main(void) {
2516         return printf("%zu", SIZE_MAX);
2517     }''', args: ['-Werror']))
2518
2519 # See if 64-bit atomic operations are supported.
2520 # Note that without __atomic builtins, we can only
2521 # assume atomic loads/stores max at pointer size.
2522 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2523   #include <stdint.h>
2524   int main(void)
2525   {
2526     uint64_t x = 0, y = 0;
2527     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2528     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2529     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2530     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2531     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2532     return 0;
2533   }'''))
2534
2535 has_int128_type = cc.compiles('''
2536   __int128_t a;
2537   __uint128_t b;
2538   int main(void) { b = a; }''')
2539 config_host_data.set('CONFIG_INT128_TYPE', has_int128_type)
2540
2541 has_int128 = has_int128_type and cc.links('''
2542   __int128_t a;
2543   __uint128_t b;
2544   int main (void) {
2545     a = a + b;
2546     b = a * b;
2547     a = a * a;
2548     return 0;
2549   }''')
2550 config_host_data.set('CONFIG_INT128', has_int128)
2551
2552 if has_int128_type
2553   # "do we have 128-bit atomics which are handled inline and specifically not
2554   # via libatomic". The reason we can't use libatomic is documented in the
2555   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2556   # We only care about these operations on 16-byte aligned pointers, so
2557   # force 16-byte alignment of the pointer, which may be greater than
2558   # __alignof(unsigned __int128) for the host.
2559   atomic_test_128 = '''
2560     int main(int ac, char **av) {
2561       __uint128_t *p = __builtin_assume_aligned(av[ac - 1], 16);
2562       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2563       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2564       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2565       return 0;
2566     }'''
2567   has_atomic128 = cc.links(atomic_test_128)
2568
2569   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2570
2571   if not has_atomic128
2572     # Even with __builtin_assume_aligned, the above test may have failed
2573     # without optimization enabled.  Try again with optimizations locally
2574     # enabled for the function.  See
2575     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2576     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2577     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2578
2579     if not has_atomic128_opt
2580       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2581         int main(void)
2582         {
2583           __uint128_t x = 0, y = 0;
2584           __sync_val_compare_and_swap_16(&x, y, x);
2585           return 0;
2586         }
2587       '''))
2588     endif
2589   endif
2590 endif
2591
2592 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2593   #include <sys/auxv.h>
2594   int main(void) {
2595     return getauxval(AT_HWCAP) == 0;
2596   }'''))
2597
2598 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2599   #include <linux/usbdevice_fs.h>
2600
2601   #ifndef USBDEVFS_GET_CAPABILITIES
2602   #error "USBDEVFS_GET_CAPABILITIES undefined"
2603   #endif
2604
2605   #ifndef USBDEVFS_DISCONNECT_CLAIM
2606   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2607   #endif
2608
2609   int main(void) { return 0; }'''))
2610
2611 have_keyring = get_option('keyring') \
2612   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2613   .require(cc.compiles('''
2614     #include <errno.h>
2615     #include <asm/unistd.h>
2616     #include <linux/keyctl.h>
2617     #include <sys/syscall.h>
2618     #include <unistd.h>
2619     int main(void) {
2620         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2621     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2622 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2623
2624 have_cpuid_h = cc.links('''
2625   #include <cpuid.h>
2626   int main(void) {
2627     unsigned a, b, c, d;
2628     unsigned max = __get_cpuid_max(0, 0);
2629
2630     if (max >= 1) {
2631         __cpuid(1, a, b, c, d);
2632     }
2633
2634     if (max >= 7) {
2635         __cpuid_count(7, 0, a, b, c, d);
2636     }
2637
2638     return 0;
2639   }''')
2640 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2641
2642 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2643   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2644   .require(cc.links('''
2645     #include <cpuid.h>
2646     #include <immintrin.h>
2647     static int __attribute__((target("avx2"))) bar(void *a) {
2648       __m256i x = *(__m256i *)a;
2649       return _mm256_testz_si256(x, x);
2650     }
2651     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2652   '''), error_message: 'AVX2 not available').allowed())
2653
2654 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2655   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2656   .require(cc.links('''
2657     #include <cpuid.h>
2658     #include <immintrin.h>
2659     static int __attribute__((target("avx512f"))) bar(void *a) {
2660       __m512i x = *(__m512i *)a;
2661       return _mm512_test_epi64_mask(x, x);
2662     }
2663     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2664   '''), error_message: 'AVX512F not available').allowed())
2665
2666 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2667   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2668   .require(cc.links('''
2669     #include <cpuid.h>
2670     #include <immintrin.h>
2671     static int __attribute__((target("avx512bw"))) bar(void *a) {
2672       __m512i *x = a;
2673       __m512i res= _mm512_abs_epi8(*x);
2674       return res[1];
2675     }
2676     int main(int argc, char *argv[]) { return bar(argv[0]); }
2677   '''), error_message: 'AVX512BW not available').allowed())
2678
2679 # For both AArch64 and AArch32, detect if builtins are available.
2680 config_host_data.set('CONFIG_ARM_AES_BUILTIN', cc.compiles('''
2681     #include <arm_neon.h>
2682     #ifndef __ARM_FEATURE_AES
2683     __attribute__((target("+crypto")))
2684     #endif
2685     void foo(uint8x16_t *p) { *p = vaesmcq_u8(*p); }
2686   '''))
2687
2688 have_pvrdma = get_option('pvrdma') \
2689   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2690   .require(cc.compiles(gnu_source_prefix + '''
2691     #include <sys/mman.h>
2692     int main(void)
2693     {
2694       char buf = 0;
2695       void *addr = &buf;
2696       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2697
2698       return 0;
2699     }'''), error_message: 'PVRDMA requires mremap').allowed()
2700
2701 if have_pvrdma
2702   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2703     #include <infiniband/verbs.h>
2704     int main(void)
2705     {
2706       struct ibv_mr *mr;
2707       struct ibv_pd *pd = NULL;
2708       size_t length = 10;
2709       uint64_t iova = 0;
2710       int access = 0;
2711       void *addr = NULL;
2712
2713       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2714       ibv_dereg_mr(mr);
2715       return 0;
2716     }'''))
2717 endif
2718
2719 if get_option('membarrier').disabled()
2720   have_membarrier = false
2721 elif targetos == 'windows'
2722   have_membarrier = true
2723 elif targetos == 'linux'
2724   have_membarrier = cc.compiles('''
2725     #include <linux/membarrier.h>
2726     #include <sys/syscall.h>
2727     #include <unistd.h>
2728     #include <stdlib.h>
2729     int main(void) {
2730         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2731         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2732         exit(0);
2733     }''')
2734 endif
2735 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2736   .require(have_membarrier, error_message: 'membarrier system call not available') \
2737   .allowed())
2738
2739 have_afalg = get_option('crypto_afalg') \
2740   .require(cc.compiles(gnu_source_prefix + '''
2741     #include <errno.h>
2742     #include <sys/types.h>
2743     #include <sys/socket.h>
2744     #include <linux/if_alg.h>
2745     int main(void) {
2746       int sock;
2747       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2748       return sock;
2749     }
2750   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2751 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2752
2753 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2754   'linux/vm_sockets.h', 'AF_VSOCK',
2755   prefix: '#include <sys/socket.h>',
2756 ))
2757
2758 have_vss = false
2759 have_vss_sdk = false # old xp/2003 SDK
2760 if targetos == 'windows' and 'cpp' in all_languages
2761   have_vss = cxx.compiles('''
2762     #define __MIDL_user_allocate_free_DEFINED__
2763     #include <vss.h>
2764     int main(void) { return VSS_CTX_BACKUP; }''')
2765   have_vss_sdk = cxx.has_header('vscoordint.h')
2766 endif
2767 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2768
2769 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2770 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2771 if targetos == 'windows'
2772   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2773     #include <stdio.h>
2774     int main(void) {
2775       _lock_file(NULL);
2776       _unlock_file(NULL);
2777       return 0;
2778     }''', name: '_lock_file and _unlock_file'))
2779 endif
2780
2781 if targetos == 'windows'
2782   mingw_has_setjmp_longjmp = cc.links('''
2783     #include <setjmp.h>
2784     int main(void) {
2785       /*
2786        * These functions are not available in setjmp header, but may be
2787        * available at link time, from libmingwex.a.
2788        */
2789       extern int __mingw_setjmp(jmp_buf);
2790       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2791       jmp_buf env;
2792       __mingw_setjmp(env);
2793       __mingw_longjmp(env, 0);
2794     }
2795   ''', name: 'mingw setjmp and longjmp')
2796
2797   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2798     error('mingw must provide setjmp/longjmp for windows-arm64')
2799   endif
2800 endif
2801
2802 ########################
2803 # Target configuration #
2804 ########################
2805
2806 minikconf = find_program('scripts/minikconf.py')
2807 config_targetos = {
2808   (targetos == 'windows' ? 'CONFIG_WIN32' : 'CONFIG_POSIX'): 'y'
2809 }
2810 if targetos == 'darwin'
2811   config_targetos += {'CONFIG_DARWIN': 'y'}
2812 elif targetos == 'linux'
2813   config_targetos += {'CONFIG_LINUX': 'y'}
2814 endif
2815 if targetos in bsd_oses
2816   config_targetos += {'CONFIG_BSD': 'y'}
2817 endif
2818
2819 config_all = {}
2820 config_all_devices = {}
2821 config_all_disas = {}
2822 config_devices_mak_list = []
2823 config_devices_h = {}
2824 config_target_h = {}
2825 config_target_mak = {}
2826
2827 disassemblers = {
2828   'alpha' : ['CONFIG_ALPHA_DIS'],
2829   'avr' : ['CONFIG_AVR_DIS'],
2830   'cris' : ['CONFIG_CRIS_DIS'],
2831   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2832   'hppa' : ['CONFIG_HPPA_DIS'],
2833   'i386' : ['CONFIG_I386_DIS'],
2834   'x86_64' : ['CONFIG_I386_DIS'],
2835   'm68k' : ['CONFIG_M68K_DIS'],
2836   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2837   'mips' : ['CONFIG_MIPS_DIS'],
2838   'nios2' : ['CONFIG_NIOS2_DIS'],
2839   'or1k' : ['CONFIG_OPENRISC_DIS'],
2840   'ppc' : ['CONFIG_PPC_DIS'],
2841   'riscv' : ['CONFIG_RISCV_DIS'],
2842   'rx' : ['CONFIG_RX_DIS'],
2843   's390' : ['CONFIG_S390_DIS'],
2844   'sh4' : ['CONFIG_SH4_DIS'],
2845   'sparc' : ['CONFIG_SPARC_DIS'],
2846   'xtensa' : ['CONFIG_XTENSA_DIS'],
2847   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2848 }
2849
2850 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2851 host_kconfig = \
2852   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2853   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2854   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2855   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2856   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2857   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2858   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2859   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2860   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2861   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2862   (targetos == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
2863   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2864   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2865   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2866
2867 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2868
2869 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2870 actual_target_dirs = []
2871 fdt_required = []
2872 foreach target : target_dirs
2873   config_target = { 'TARGET_NAME': target.split('-')[0] }
2874   if target.endswith('linux-user')
2875     if targetos != 'linux'
2876       if default_targets
2877         continue
2878       endif
2879       error('Target @0@ is only available on a Linux host'.format(target))
2880     endif
2881     config_target += { 'CONFIG_LINUX_USER': 'y' }
2882   elif target.endswith('bsd-user')
2883     if targetos not in bsd_oses
2884       if default_targets
2885         continue
2886       endif
2887       error('Target @0@ is only available on a BSD host'.format(target))
2888     endif
2889     config_target += { 'CONFIG_BSD_USER': 'y' }
2890   elif target.endswith('softmmu')
2891     config_target += { 'CONFIG_SYSTEM_ONLY': 'y' }
2892     config_target += { 'CONFIG_SOFTMMU': 'y' }
2893   endif
2894   if target.endswith('-user')
2895     config_target += {
2896       'CONFIG_USER_ONLY': 'y',
2897       'CONFIG_QEMU_INTERP_PREFIX':
2898         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2899     }
2900   endif
2901
2902   accel_kconfig = []
2903   foreach sym: accelerators
2904     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2905       config_target += { sym: 'y' }
2906       config_all += { sym: 'y' }
2907       if target in modular_tcg
2908         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2909       else
2910         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2911       endif
2912       accel_kconfig += [ sym + '=y' ]
2913     endif
2914   endforeach
2915   if accel_kconfig.length() == 0
2916     if default_targets
2917       continue
2918     endif
2919     error('No accelerator available for target @0@'.format(target))
2920   endif
2921
2922   actual_target_dirs += target
2923   config_target += keyval.load('configs/targets' / target + '.mak')
2924   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2925
2926   if 'TARGET_NEED_FDT' in config_target
2927     fdt_required += target
2928   endif
2929
2930   # Add default keys
2931   if 'TARGET_BASE_ARCH' not in config_target
2932     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2933   endif
2934   if 'TARGET_ABI_DIR' not in config_target
2935     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2936   endif
2937   if 'TARGET_BIG_ENDIAN' not in config_target
2938     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2939   endif
2940
2941   foreach k, v: disassemblers
2942     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2943       foreach sym: v
2944         config_target += { sym: 'y' }
2945         config_all_disas += { sym: 'y' }
2946       endforeach
2947     endif
2948   endforeach
2949
2950   config_target_data = configuration_data()
2951   foreach k, v: config_target
2952     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2953       # do nothing
2954     elif ignored.contains(k)
2955       # do nothing
2956     elif k == 'TARGET_BASE_ARCH'
2957       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2958       # not used to select files from sourcesets.
2959       config_target_data.set('TARGET_' + v.to_upper(), 1)
2960     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2961       config_target_data.set_quoted(k, v)
2962     elif v == 'y'
2963       config_target_data.set(k, 1)
2964     elif v == 'n'
2965       config_target_data.set(k, 0)
2966     else
2967       config_target_data.set(k, v)
2968     endif
2969   endforeach
2970   config_target_data.set('QEMU_ARCH',
2971                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2972   config_target_h += {target: configure_file(output: target + '-config-target.h',
2973                                                configuration: config_target_data)}
2974
2975   if target.endswith('-softmmu')
2976     config_input = meson.get_external_property(target, 'default')
2977     config_devices_mak = target + '-config-devices.mak'
2978     config_devices_mak = configure_file(
2979       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2980       output: config_devices_mak,
2981       depfile: config_devices_mak + '.d',
2982       capture: true,
2983       command: [minikconf,
2984                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2985                 config_devices_mak, '@DEPFILE@', '@INPUT@',
2986                 host_kconfig, accel_kconfig,
2987                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2988
2989     config_devices_data = configuration_data()
2990     config_devices = keyval.load(config_devices_mak)
2991     foreach k, v: config_devices
2992       config_devices_data.set(k, 1)
2993     endforeach
2994     config_devices_mak_list += config_devices_mak
2995     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2996                                                 configuration: config_devices_data)}
2997     config_target += config_devices
2998     config_all_devices += config_devices
2999   endif
3000   config_target_mak += {target: config_target}
3001 endforeach
3002 target_dirs = actual_target_dirs
3003
3004 # This configuration is used to build files that are shared by
3005 # multiple binaries, and then extracted out of the "common"
3006 # static_library target.
3007 #
3008 # We do not use all_sources()/all_dependencies(), because it would
3009 # build literally all source files, including devices only used by
3010 # targets that are not built for this compilation.  The CONFIG_ALL
3011 # pseudo symbol replaces it.
3012
3013 config_all += config_all_devices
3014 config_all += config_targetos
3015 config_all += config_all_disas
3016 config_all += {
3017   'CONFIG_XEN': xen.found(),
3018   'CONFIG_SYSTEM_ONLY': have_system,
3019   'CONFIG_USER_ONLY': have_user,
3020   'CONFIG_ALL': true,
3021 }
3022
3023 target_configs_h = []
3024 foreach target: target_dirs
3025   target_configs_h += config_target_h[target]
3026   target_configs_h += config_devices_h.get(target, [])
3027 endforeach
3028 genh += custom_target('config-poison.h',
3029                       input: [target_configs_h],
3030                       output: 'config-poison.h',
3031                       capture: true,
3032                       command: [find_program('scripts/make-config-poison.sh'),
3033                                 target_configs_h])
3034
3035 ##############
3036 # Submodules #
3037 ##############
3038
3039 capstone = not_found
3040 if not get_option('capstone').auto() or have_system or have_user
3041   capstone = dependency('capstone', version: '>=3.0.5',
3042                         method: 'pkg-config',
3043                         required: get_option('capstone'))
3044
3045   # Some versions of capstone have broken pkg-config file
3046   # that reports a wrong -I path, causing the #include to
3047   # fail later. If the system has such a broken version
3048   # do not use it.
3049   if capstone.found() and not cc.compiles('#include <capstone.h>',
3050                                           dependencies: [capstone])
3051     capstone = not_found
3052     if get_option('capstone').enabled()
3053       error('capstone requested, but it does not appear to work')
3054     endif
3055   endif
3056 endif
3057
3058 libvfio_user_dep = not_found
3059 if have_system and vfio_user_server_allowed
3060   libvfio_user_proj = subproject('libvfio-user', required: true)
3061   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3062 endif
3063
3064 fdt = not_found
3065 fdt_opt = get_option('fdt')
3066 if fdt_required.length() > 0 or fdt_opt == 'enabled'
3067   if fdt_opt == 'disabled'
3068     error('fdt disabled but required by targets ' + ', '.join(fdt_required))
3069   endif
3070
3071   if fdt_opt in ['enabled', 'auto', 'system']
3072     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3073     if fdt.found() and cc.links('''
3074        #include <libfdt.h>
3075        #include <libfdt_env.h>
3076        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3077          dependencies: fdt)
3078       fdt_opt = 'system'
3079     elif fdt_opt == 'system'
3080        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3081     else
3082       fdt_opt = 'internal'
3083       fdt = not_found
3084     endif
3085   endif
3086   if not fdt.found()
3087     assert(fdt_opt == 'internal')
3088     libfdt_proj = subproject('dtc', required: true,
3089                              default_options: ['tools=false',  'yaml=disabled',
3090                                                'python=disabled', 'default_library=static'])
3091     fdt = libfdt_proj.get_variable('libfdt_dep')
3092   endif
3093 else
3094   fdt_opt = 'disabled'
3095 endif
3096
3097 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3098 config_host_data.set('CONFIG_FDT', fdt.found())
3099 config_host_data.set('CONFIG_SLIRP', slirp.found())
3100
3101 #####################
3102 # Generated sources #
3103 #####################
3104
3105 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3106
3107 hxtool = find_program('scripts/hxtool')
3108 shaderinclude = find_program('scripts/shaderinclude.py')
3109 qapi_gen = find_program('scripts/qapi-gen.py')
3110 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3111                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3112                      meson.current_source_dir() / 'scripts/qapi/common.py',
3113                      meson.current_source_dir() / 'scripts/qapi/error.py',
3114                      meson.current_source_dir() / 'scripts/qapi/events.py',
3115                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3116                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3117                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3118                      meson.current_source_dir() / 'scripts/qapi/main.py',
3119                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3120                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3121                      meson.current_source_dir() / 'scripts/qapi/source.py',
3122                      meson.current_source_dir() / 'scripts/qapi/types.py',
3123                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3124                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3125 ]
3126
3127 tracetool = [
3128   python, files('scripts/tracetool.py'),
3129    '--backend=' + ','.join(get_option('trace_backends'))
3130 ]
3131 tracetool_depends = files(
3132   'scripts/tracetool/backend/log.py',
3133   'scripts/tracetool/backend/__init__.py',
3134   'scripts/tracetool/backend/dtrace.py',
3135   'scripts/tracetool/backend/ftrace.py',
3136   'scripts/tracetool/backend/simple.py',
3137   'scripts/tracetool/backend/syslog.py',
3138   'scripts/tracetool/backend/ust.py',
3139   'scripts/tracetool/format/ust_events_c.py',
3140   'scripts/tracetool/format/ust_events_h.py',
3141   'scripts/tracetool/format/__init__.py',
3142   'scripts/tracetool/format/d.py',
3143   'scripts/tracetool/format/simpletrace_stap.py',
3144   'scripts/tracetool/format/c.py',
3145   'scripts/tracetool/format/h.py',
3146   'scripts/tracetool/format/log_stap.py',
3147   'scripts/tracetool/format/stap.py',
3148   'scripts/tracetool/__init__.py',
3149   'scripts/tracetool/vcpu.py'
3150 )
3151
3152 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3153                     meson.current_source_dir(),
3154                     get_option('pkgversion'), meson.project_version()]
3155 qemu_version = custom_target('qemu-version.h',
3156                              output: 'qemu-version.h',
3157                              command: qemu_version_cmd,
3158                              capture: true,
3159                              build_by_default: true,
3160                              build_always_stale: true)
3161 genh += qemu_version
3162
3163 hxdep = []
3164 hx_headers = [
3165   ['qemu-options.hx', 'qemu-options.def'],
3166   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3167 ]
3168 if have_system
3169   hx_headers += [
3170     ['hmp-commands.hx', 'hmp-commands.h'],
3171     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3172   ]
3173 endif
3174 foreach d : hx_headers
3175   hxdep += custom_target(d[1],
3176                 input: files(d[0]),
3177                 output: d[1],
3178                 capture: true,
3179                 build_by_default: true, # to be removed when added to a target
3180                 command: [hxtool, '-h', '@INPUT0@'])
3181 endforeach
3182 genh += hxdep
3183
3184 ###################
3185 # Collect sources #
3186 ###################
3187
3188 authz_ss = ss.source_set()
3189 blockdev_ss = ss.source_set()
3190 block_ss = ss.source_set()
3191 chardev_ss = ss.source_set()
3192 common_ss = ss.source_set()
3193 crypto_ss = ss.source_set()
3194 hwcore_ss = ss.source_set()
3195 io_ss = ss.source_set()
3196 qmp_ss = ss.source_set()
3197 qom_ss = ss.source_set()
3198 system_ss = ss.source_set()
3199 specific_fuzz_ss = ss.source_set()
3200 specific_ss = ss.source_set()
3201 stub_ss = ss.source_set()
3202 trace_ss = ss.source_set()
3203 user_ss = ss.source_set()
3204 util_ss = ss.source_set()
3205
3206 # accel modules
3207 qtest_module_ss = ss.source_set()
3208 tcg_module_ss = ss.source_set()
3209
3210 modules = {}
3211 target_modules = {}
3212 hw_arch = {}
3213 target_arch = {}
3214 target_softmmu_arch = {}
3215 target_user_arch = {}
3216
3217 ###############
3218 # Trace files #
3219 ###############
3220
3221 # TODO: add each directory to the subdirs from its own meson.build, once
3222 # we have those
3223 trace_events_subdirs = [
3224   'crypto',
3225   'qapi',
3226   'qom',
3227   'monitor',
3228   'util',
3229   'gdbstub',
3230 ]
3231 if have_linux_user
3232   trace_events_subdirs += [ 'linux-user' ]
3233 endif
3234 if have_bsd_user
3235   trace_events_subdirs += [ 'bsd-user' ]
3236 endif
3237 if have_block
3238   trace_events_subdirs += [
3239     'authz',
3240     'block',
3241     'io',
3242     'nbd',
3243     'scsi',
3244   ]
3245 endif
3246 if have_system
3247   trace_events_subdirs += [
3248     'accel/kvm',
3249     'audio',
3250     'backends',
3251     'backends/tpm',
3252     'chardev',
3253     'ebpf',
3254     'hw/9pfs',
3255     'hw/acpi',
3256     'hw/adc',
3257     'hw/alpha',
3258     'hw/arm',
3259     'hw/audio',
3260     'hw/block',
3261     'hw/block/dataplane',
3262     'hw/char',
3263     'hw/display',
3264     'hw/dma',
3265     'hw/hyperv',
3266     'hw/i2c',
3267     'hw/i386',
3268     'hw/i386/xen',
3269     'hw/i386/kvm',
3270     'hw/ide',
3271     'hw/input',
3272     'hw/intc',
3273     'hw/isa',
3274     'hw/mem',
3275     'hw/mips',
3276     'hw/misc',
3277     'hw/misc/macio',
3278     'hw/net',
3279     'hw/net/can',
3280     'hw/nubus',
3281     'hw/nvme',
3282     'hw/nvram',
3283     'hw/pci',
3284     'hw/pci-host',
3285     'hw/ppc',
3286     'hw/rdma',
3287     'hw/rdma/vmw',
3288     'hw/rtc',
3289     'hw/s390x',
3290     'hw/scsi',
3291     'hw/sd',
3292     'hw/sh4',
3293     'hw/sparc',
3294     'hw/sparc64',
3295     'hw/ssi',
3296     'hw/timer',
3297     'hw/tpm',
3298     'hw/ufs',
3299     'hw/usb',
3300     'hw/vfio',
3301     'hw/virtio',
3302     'hw/watchdog',
3303     'hw/xen',
3304     'hw/gpio',
3305     'migration',
3306     'net',
3307     'softmmu',
3308     'ui',
3309     'hw/remote',
3310   ]
3311 endif
3312 if have_system or have_user
3313   trace_events_subdirs += [
3314     'accel/tcg',
3315     'hw/core',
3316     'target/arm',
3317     'target/arm/hvf',
3318     'target/hppa',
3319     'target/i386',
3320     'target/i386/kvm',
3321     'target/mips/tcg',
3322     'target/nios2',
3323     'target/ppc',
3324     'target/riscv',
3325     'target/s390x',
3326     'target/s390x/kvm',
3327     'target/sparc',
3328   ]
3329 endif
3330
3331 vhost_user = not_found
3332 if targetos == 'linux' and have_vhost_user
3333   libvhost_user = subproject('libvhost-user')
3334   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3335 endif
3336
3337 libvduse = not_found
3338 if have_libvduse
3339   libvduse_proj = subproject('libvduse')
3340   libvduse = libvduse_proj.get_variable('libvduse_dep')
3341 endif
3342
3343 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3344 # that is filled in by qapi/.
3345 subdir('qapi')
3346 subdir('qobject')
3347 subdir('stubs')
3348 subdir('trace')
3349 subdir('util')
3350 subdir('qom')
3351 subdir('authz')
3352 subdir('crypto')
3353 subdir('ui')
3354 subdir('hw')
3355 subdir('gdbstub')
3356
3357 if enable_modules
3358   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3359   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3360 endif
3361
3362 qom_ss = qom_ss.apply(config_targetos, strict: false)
3363 libqom = static_library('qom', qom_ss.sources() + genh,
3364                         dependencies: [qom_ss.dependencies()],
3365                         name_suffix: 'fa')
3366 qom = declare_dependency(link_whole: libqom)
3367
3368 event_loop_base = files('event-loop-base.c')
3369 event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3370                                  build_by_default: true)
3371 event_loop_base = declare_dependency(link_whole: event_loop_base,
3372                                      dependencies: [qom])
3373
3374 stub_ss = stub_ss.apply(config_all, strict: false)
3375
3376 util_ss.add_all(trace_ss)
3377 util_ss = util_ss.apply(config_all, strict: false)
3378 libqemuutil = static_library('qemuutil',
3379                              sources: util_ss.sources() + stub_ss.sources() + genh,
3380                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3381 qemuutil = declare_dependency(link_with: libqemuutil,
3382                               sources: genh + version_res,
3383                               dependencies: [event_loop_base])
3384
3385 if have_system or have_user
3386   decodetree = generator(find_program('scripts/decodetree.py'),
3387                          output: 'decode-@BASENAME@.c.inc',
3388                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3389   subdir('libdecnumber')
3390   subdir('target')
3391 endif
3392
3393 subdir('audio')
3394 subdir('io')
3395 subdir('chardev')
3396 subdir('fsdev')
3397 subdir('dump')
3398
3399 if have_block
3400   block_ss.add(files(
3401     'block.c',
3402     'blockjob.c',
3403     'job.c',
3404     'qemu-io-cmds.c',
3405   ))
3406   if config_host_data.get('CONFIG_REPLICATION')
3407     block_ss.add(files('replication.c'))
3408   endif
3409
3410   subdir('nbd')
3411   subdir('scsi')
3412   subdir('block')
3413
3414   blockdev_ss.add(files(
3415     'blockdev.c',
3416     'blockdev-nbd.c',
3417     'iothread.c',
3418     'job-qmp.c',
3419   ), gnutls)
3420
3421   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3422   # os-win32.c does not
3423   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3424   system_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3425 endif
3426
3427 common_ss.add(files('cpus-common.c'))
3428 specific_ss.add(files('cpu.c'))
3429
3430 subdir('softmmu')
3431
3432 # Work around a gcc bug/misfeature wherein constant propagation looks
3433 # through an alias:
3434 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3435 # to guess that a const variable is always zero.  Without lto, this is
3436 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3437 # without lto, not even the alias is required -- we simply use different
3438 # declarations in different compilation units.
3439 pagevary = files('page-vary-common.c')
3440 if get_option('b_lto')
3441   pagevary_flags = ['-fno-lto']
3442   if get_option('cfi')
3443     pagevary_flags += '-fno-sanitize=cfi-icall'
3444   endif
3445   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3446                             c_args: pagevary_flags)
3447   pagevary = declare_dependency(link_with: pagevary)
3448 endif
3449 common_ss.add(pagevary)
3450 specific_ss.add(files('page-vary.c'))
3451
3452 subdir('backends')
3453 subdir('disas')
3454 subdir('migration')
3455 subdir('monitor')
3456 subdir('net')
3457 subdir('replay')
3458 subdir('semihosting')
3459 subdir('stats')
3460 subdir('tcg')
3461 subdir('fpu')
3462 subdir('accel')
3463 subdir('plugins')
3464 subdir('ebpf')
3465
3466 common_user_inc = []
3467
3468 subdir('common-user')
3469 subdir('bsd-user')
3470 subdir('linux-user')
3471
3472 # needed for fuzzing binaries
3473 subdir('tests/qtest/libqos')
3474 subdir('tests/qtest/fuzz')
3475
3476 # accel modules
3477 tcg_real_module_ss = ss.source_set()
3478 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3479 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3480 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3481                                 'tcg': tcg_real_module_ss }}
3482
3483 ########################
3484 # Library dependencies #
3485 ########################
3486
3487 modinfo_collect = find_program('scripts/modinfo-collect.py')
3488 modinfo_generate = find_program('scripts/modinfo-generate.py')
3489 modinfo_files = []
3490
3491 block_mods = []
3492 softmmu_mods = []
3493 foreach d, list : modules
3494   if not (d == 'block' ? have_block : have_system)
3495     continue
3496   endif
3497
3498   foreach m, module_ss : list
3499     if enable_modules
3500       module_ss = module_ss.apply(config_all, strict: false)
3501       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3502                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3503       if d == 'block'
3504         block_mods += sl
3505       else
3506         softmmu_mods += sl
3507       endif
3508       if module_ss.sources() != []
3509         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3510         # input. Sources can be used multiple times but objects are
3511         # unique when it comes to lookup in compile_commands.json.
3512         # Depnds on a mesion version with
3513         # https://github.com/mesonbuild/meson/pull/8900
3514         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3515                                        output: d + '-' + m + '.modinfo',
3516                                        input: module_ss.sources() + genh,
3517                                        capture: true,
3518                                        command: [modinfo_collect, module_ss.sources()])
3519       endif
3520     else
3521       if d == 'block'
3522         block_ss.add_all(module_ss)
3523       else
3524         system_ss.add_all(module_ss)
3525       endif
3526     endif
3527   endforeach
3528 endforeach
3529
3530 foreach d, list : target_modules
3531   foreach m, module_ss : list
3532     if enable_modules
3533       foreach target : target_dirs
3534         if target.endswith('-softmmu')
3535           config_target = config_target_mak[target]
3536           config_target += config_targetos
3537           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3538           c_args = ['-DNEED_CPU_H',
3539                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3540                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3541           target_module_ss = module_ss.apply(config_target, strict: false)
3542           if target_module_ss.sources() != []
3543             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3544             sl = static_library(module_name,
3545                                 [genh, target_module_ss.sources()],
3546                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3547                                 include_directories: target_inc,
3548                                 c_args: c_args,
3549                                 pic: true)
3550             softmmu_mods += sl
3551             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3552             modinfo_files += custom_target(module_name + '.modinfo',
3553                                            output: module_name + '.modinfo',
3554                                            input: target_module_ss.sources() + genh,
3555                                            capture: true,
3556                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3557           endif
3558         endif
3559       endforeach
3560     else
3561       specific_ss.add_all(module_ss)
3562     endif
3563   endforeach
3564 endforeach
3565
3566 if enable_modules
3567   foreach target : target_dirs
3568     if target.endswith('-softmmu')
3569       config_target = config_target_mak[target]
3570       config_devices_mak = target + '-config-devices.mak'
3571       modinfo_src = custom_target('modinfo-' + target + '.c',
3572                                   output: 'modinfo-' + target + '.c',
3573                                   input: modinfo_files,
3574                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3575                                   capture: true)
3576
3577       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3578       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3579
3580       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3581       hw_arch[arch].add(modinfo_dep)
3582     endif
3583   endforeach
3584 endif
3585
3586 nm = find_program('nm')
3587 undefsym = find_program('scripts/undefsym.py')
3588 block_syms = custom_target('block.syms', output: 'block.syms',
3589                              input: [libqemuutil, block_mods],
3590                              capture: true,
3591                              command: [undefsym, nm, '@INPUT@'])
3592 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3593                              input: [libqemuutil, softmmu_mods],
3594                              capture: true,
3595                              command: [undefsym, nm, '@INPUT@'])
3596
3597 authz_ss = authz_ss.apply(config_targetos, strict: false)
3598 libauthz = static_library('authz', authz_ss.sources() + genh,
3599                           dependencies: [authz_ss.dependencies()],
3600                           name_suffix: 'fa',
3601                           build_by_default: false)
3602
3603 authz = declare_dependency(link_whole: libauthz,
3604                            dependencies: qom)
3605
3606 crypto_ss = crypto_ss.apply(config_targetos, strict: false)
3607 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3608                            dependencies: [crypto_ss.dependencies()],
3609                            name_suffix: 'fa',
3610                            build_by_default: false)
3611
3612 crypto = declare_dependency(link_whole: libcrypto,
3613                             dependencies: [authz, qom])
3614
3615 io_ss = io_ss.apply(config_targetos, strict: false)
3616 libio = static_library('io', io_ss.sources() + genh,
3617                        dependencies: [io_ss.dependencies()],
3618                        link_with: libqemuutil,
3619                        name_suffix: 'fa',
3620                        build_by_default: false)
3621
3622 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3623
3624 libmigration = static_library('migration', sources: migration_files + genh,
3625                               name_suffix: 'fa',
3626                               build_by_default: false)
3627 migration = declare_dependency(link_with: libmigration,
3628                                dependencies: [zlib, qom, io])
3629 system_ss.add(migration)
3630
3631 block_ss = block_ss.apply(config_targetos, strict: false)
3632 libblock = static_library('block', block_ss.sources() + genh,
3633                           dependencies: block_ss.dependencies(),
3634                           link_depends: block_syms,
3635                           name_suffix: 'fa',
3636                           build_by_default: false)
3637
3638 block = declare_dependency(link_whole: [libblock],
3639                            link_args: '@block.syms',
3640                            dependencies: [crypto, io])
3641
3642 blockdev_ss = blockdev_ss.apply(config_targetos, strict: false)
3643 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3644                              dependencies: blockdev_ss.dependencies(),
3645                              name_suffix: 'fa',
3646                              build_by_default: false)
3647
3648 blockdev = declare_dependency(link_whole: [libblockdev],
3649                               dependencies: [block, event_loop_base])
3650
3651 qmp_ss = qmp_ss.apply(config_targetos, strict: false)
3652 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3653                         dependencies: qmp_ss.dependencies(),
3654                         name_suffix: 'fa',
3655                         build_by_default: false)
3656
3657 qmp = declare_dependency(link_whole: [libqmp])
3658
3659 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3660                             name_suffix: 'fa',
3661                             dependencies: chardev_ss.dependencies(),
3662                             build_by_default: false)
3663
3664 chardev = declare_dependency(link_whole: libchardev)
3665
3666 hwcore_ss = hwcore_ss.apply(config_targetos, strict: false)
3667 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3668                            name_suffix: 'fa',
3669                            build_by_default: false)
3670 hwcore = declare_dependency(link_whole: libhwcore)
3671 common_ss.add(hwcore)
3672
3673 ###########
3674 # Targets #
3675 ###########
3676
3677 emulator_modules = []
3678 foreach m : block_mods + softmmu_mods
3679   emulator_modules += shared_module(m.name(),
3680                 build_by_default: true,
3681                 name_prefix: '',
3682                 link_whole: m,
3683                 install: true,
3684                 install_dir: qemu_moddir)
3685 endforeach
3686 if emulator_modules.length() > 0
3687   alias_target('modules', emulator_modules)
3688 endif
3689
3690 system_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3691 common_ss.add(qom, qemuutil)
3692
3693 common_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: [system_ss])
3694 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3695
3696 common_all = common_ss.apply(config_all, strict: false)
3697 common_all = static_library('common',
3698                             build_by_default: false,
3699                             sources: common_all.sources() + genh,
3700                             include_directories: common_user_inc,
3701                             implicit_include_directories: false,
3702                             dependencies: common_all.dependencies(),
3703                             name_suffix: 'fa')
3704
3705 feature_to_c = find_program('scripts/feature_to_c.sh')
3706
3707 if targetos == 'darwin'
3708   entitlement = find_program('scripts/entitlement.sh')
3709 endif
3710
3711 emulators = {}
3712 foreach target : target_dirs
3713   config_target = config_target_mak[target]
3714   target_name = config_target['TARGET_NAME']
3715   target_base_arch = config_target['TARGET_BASE_ARCH']
3716   arch_srcs = [config_target_h[target]]
3717   arch_deps = []
3718   c_args = ['-DNEED_CPU_H',
3719             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3720             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3721   link_args = emulator_link_args
3722
3723   config_target += config_targetos
3724   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3725   if targetos == 'linux'
3726     target_inc += include_directories('linux-headers', is_system: true)
3727   endif
3728   if target.endswith('-softmmu')
3729     target_type='system'
3730     t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3731     arch_srcs += t.sources()
3732     arch_deps += t.dependencies()
3733
3734     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3735     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3736     arch_srcs += hw.sources()
3737     arch_deps += hw.dependencies()
3738
3739     arch_srcs += config_devices_h[target]
3740     link_args += ['@block.syms', '@qemu.syms']
3741   else
3742     abi = config_target['TARGET_ABI_DIR']
3743     target_type='user'
3744     target_inc += common_user_inc
3745     if target_base_arch in target_user_arch
3746       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3747       arch_srcs += t.sources()
3748       arch_deps += t.dependencies()
3749     endif
3750     if 'CONFIG_LINUX_USER' in config_target
3751       base_dir = 'linux-user'
3752     endif
3753     if 'CONFIG_BSD_USER' in config_target
3754       base_dir = 'bsd-user'
3755       target_inc += include_directories('bsd-user/' / targetos)
3756       target_inc += include_directories('bsd-user/host/' / host_arch)
3757       dir = base_dir / abi
3758       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3759     endif
3760     target_inc += include_directories(
3761       base_dir,
3762       base_dir / abi,
3763     )
3764     if 'CONFIG_LINUX_USER' in config_target
3765       dir = base_dir / abi
3766       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3767       if config_target.has_key('TARGET_SYSTBL_ABI')
3768         arch_srcs += \
3769           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3770                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3771       endif
3772     endif
3773   endif
3774
3775   if 'TARGET_XML_FILES' in config_target
3776     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3777                                 output: target + '-gdbstub-xml.c',
3778                                 input: files(config_target['TARGET_XML_FILES'].split()),
3779                                 command: [feature_to_c, '@INPUT@'],
3780                                 capture: true)
3781     arch_srcs += gdbstub_xml
3782   endif
3783
3784   t = target_arch[target_base_arch].apply(config_target, strict: false)
3785   arch_srcs += t.sources()
3786   arch_deps += t.dependencies()
3787
3788   target_common = common_ss.apply(config_target, strict: false)
3789   objects = common_all.extract_objects(target_common.sources())
3790   deps = target_common.dependencies()
3791
3792   target_specific = specific_ss.apply(config_target, strict: false)
3793   arch_srcs += target_specific.sources()
3794   arch_deps += target_specific.dependencies()
3795
3796   lib = static_library('qemu-' + target,
3797                  sources: arch_srcs + genh,
3798                  dependencies: arch_deps,
3799                  objects: objects,
3800                  include_directories: target_inc,
3801                  c_args: c_args,
3802                  build_by_default: false,
3803                  name_suffix: 'fa')
3804
3805   if target.endswith('-softmmu')
3806     execs = [{
3807       'name': 'qemu-system-' + target_name,
3808       'win_subsystem': 'console',
3809       'sources': files('softmmu/main.c'),
3810       'dependencies': []
3811     }]
3812     if targetos == 'windows' and (sdl.found() or gtk.found())
3813       execs += [{
3814         'name': 'qemu-system-' + target_name + 'w',
3815         'win_subsystem': 'windows',
3816         'sources': files('softmmu/main.c'),
3817         'dependencies': []
3818       }]
3819     endif
3820     if get_option('fuzzing')
3821       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3822       execs += [{
3823         'name': 'qemu-fuzz-' + target_name,
3824         'win_subsystem': 'console',
3825         'sources': specific_fuzz.sources(),
3826         'dependencies': specific_fuzz.dependencies(),
3827       }]
3828     endif
3829   else
3830     execs = [{
3831       'name': 'qemu-' + target_name,
3832       'win_subsystem': 'console',
3833       'sources': [],
3834       'dependencies': []
3835     }]
3836   endif
3837   foreach exe: execs
3838     exe_name = exe['name']
3839     if targetos == 'darwin'
3840       exe_name += '-unsigned'
3841     endif
3842
3843     emulator = executable(exe_name, exe['sources'],
3844                install: true,
3845                c_args: c_args,
3846                dependencies: arch_deps + deps + exe['dependencies'],
3847                objects: lib.extract_all_objects(recursive: true),
3848                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3849                link_args: link_args,
3850                win_subsystem: exe['win_subsystem'])
3851
3852     if targetos == 'darwin'
3853       icon = 'pc-bios/qemu.rsrc'
3854       build_input = [emulator, files(icon)]
3855       install_input = [
3856         get_option('bindir') / exe_name,
3857         meson.current_source_dir() / icon
3858       ]
3859       if 'CONFIG_HVF' in config_target
3860         entitlements = 'accel/hvf/entitlements.plist'
3861         build_input += files(entitlements)
3862         install_input += meson.current_source_dir() / entitlements
3863       endif
3864
3865       emulators += {exe['name'] : custom_target(exe['name'],
3866                    input: build_input,
3867                    output: exe['name'],
3868                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3869       }
3870
3871       meson.add_install_script(entitlement, '--install',
3872                                get_option('bindir') / exe['name'],
3873                                install_input)
3874     else
3875       emulators += {exe['name']: emulator}
3876     endif
3877
3878     if stap.found()
3879       foreach stp: [
3880         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3881         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3882         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3883         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3884       ]
3885         custom_target(exe['name'] + stp['ext'],
3886                       input: trace_events_all,
3887                       output: exe['name'] + stp['ext'],
3888                       install: stp['install'],
3889                       install_dir: get_option('datadir') / 'systemtap/tapset',
3890                       command: [
3891                         tracetool, '--group=all', '--format=' + stp['fmt'],
3892                         '--binary=' + stp['bin'],
3893                         '--target-name=' + target_name,
3894                         '--target-type=' + target_type,
3895                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3896                         '@INPUT@', '@OUTPUT@'
3897                       ],
3898                       depend_files: tracetool_depends)
3899       endforeach
3900     endif
3901   endforeach
3902 endforeach
3903
3904 # Other build targets
3905
3906 if get_option('plugins')
3907   install_headers('include/qemu/qemu-plugin.h')
3908 endif
3909
3910 subdir('qga')
3911
3912 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3913 # when we don't build tools or system
3914 if xkbcommon.found()
3915   # used for the update-keymaps target, so include rules even if !have_tools
3916   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3917                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3918 endif
3919
3920 if have_tools
3921   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3922              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3923   qemu_io = executable('qemu-io', files('qemu-io.c'),
3924              dependencies: [block, qemuutil], install: true)
3925   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3926                dependencies: [blockdev, qemuutil, gnutls, selinux],
3927                install: true)
3928
3929   subdir('storage-daemon')
3930   subdir('contrib/rdmacm-mux')
3931   subdir('contrib/elf2dmp')
3932
3933   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3934              dependencies: qemuutil,
3935              install: true)
3936
3937   if have_vhost_user
3938     subdir('contrib/vhost-user-blk')
3939     subdir('contrib/vhost-user-gpu')
3940     subdir('contrib/vhost-user-input')
3941     subdir('contrib/vhost-user-scsi')
3942   endif
3943
3944   if targetos == 'linux'
3945     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3946                dependencies: [qemuutil, libcap_ng],
3947                install: true,
3948                install_dir: get_option('libexecdir'))
3949
3950     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3951                dependencies: [authz, crypto, io, qom, qemuutil,
3952                               libcap_ng, mpathpersist],
3953                install: true)
3954   endif
3955
3956   if have_ivshmem
3957     subdir('contrib/ivshmem-client')
3958     subdir('contrib/ivshmem-server')
3959   endif
3960 endif
3961
3962 subdir('scripts')
3963 subdir('tools')
3964 subdir('pc-bios')
3965 subdir('docs')
3966 subdir('tests')
3967 if gtk.found()
3968   subdir('po')
3969 endif
3970
3971 if host_machine.system() == 'windows'
3972   nsis_cmd = [
3973     find_program('scripts/nsis.py'),
3974     '@OUTPUT@',
3975     get_option('prefix'),
3976     meson.current_source_dir(),
3977     glib_pc.get_variable('bindir'),
3978     host_machine.cpu(),
3979     '--',
3980     '-DDISPLAYVERSION=' + meson.project_version(),
3981   ]
3982   if build_docs
3983     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3984   endif
3985   if gtk.found()
3986     nsis_cmd += '-DCONFIG_GTK=y'
3987   endif
3988
3989   nsis = custom_target('nsis',
3990                        output: 'qemu-setup-' + meson.project_version() + '.exe',
3991                        input: files('qemu.nsi'),
3992                        build_always_stale: true,
3993                        command: nsis_cmd + ['@INPUT@'])
3994   alias_target('installer', nsis)
3995 endif
3996
3997 #########################
3998 # Configuration summary #
3999 #########################
4000
4001 # Build environment
4002 summary_info = {}
4003 summary_info += {'Build directory':   meson.current_build_dir()}
4004 summary_info += {'Source path':       meson.current_source_dir()}
4005 summary_info += {'Download dependencies': get_option('wrap_mode') != 'nodownload'}
4006 summary(summary_info, bool_yn: true, section: 'Build environment')
4007
4008 # Directories
4009 summary_info += {'Install prefix':    get_option('prefix')}
4010 summary_info += {'BIOS directory':    qemu_datadir}
4011 pathsep = targetos == 'windows' ? ';' : ':'
4012 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
4013 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
4014 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
4015 summary_info += {'module directory':  qemu_moddir}
4016 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
4017 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
4018 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
4019 if targetos != 'windows'
4020   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
4021   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
4022 else
4023   summary_info += {'local state directory': 'queried at runtime'}
4024 endif
4025 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4026 summary(summary_info, bool_yn: true, section: 'Directories')
4027
4028 # Host binaries
4029 summary_info = {}
4030 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4031 summary_info += {'sphinx-build':      sphinx_build}
4032 if config_host.has_key('HAVE_GDB_BIN')
4033   summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
4034 endif
4035 summary_info += {'iasl':              iasl}
4036 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4037 if targetos == 'windows' and have_ga
4038   summary_info += {'wixl':            wixl}
4039 endif
4040 if slirp.found() and have_system
4041   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4042 endif
4043 summary(summary_info, bool_yn: true, section: 'Host binaries')
4044
4045 # Configurable features
4046 summary_info = {}
4047 summary_info += {'Documentation':     build_docs}
4048 summary_info += {'system-mode emulation': have_system}
4049 summary_info += {'user-mode emulation': have_user}
4050 summary_info += {'block layer':       have_block}
4051 summary_info += {'Install blobs':     get_option('install_blobs')}
4052 summary_info += {'module support':    enable_modules}
4053 if enable_modules
4054   summary_info += {'alternative module path': get_option('module_upgrades')}
4055 endif
4056 summary_info += {'fuzzing support':   get_option('fuzzing')}
4057 if have_system
4058   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4059 endif
4060 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4061 if 'simple' in get_option('trace_backends')
4062   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4063 endif
4064 summary_info += {'D-Bus display':     dbus_display}
4065 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4066 summary_info += {'vhost-kernel support': have_vhost_kernel}
4067 summary_info += {'vhost-net support': have_vhost_net}
4068 summary_info += {'vhost-user support': have_vhost_user}
4069 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4070 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4071 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4072 summary_info += {'build guest agent': have_ga}
4073 summary(summary_info, bool_yn: true, section: 'Configurable features')
4074
4075 # Compilation information
4076 summary_info = {}
4077 summary_info += {'host CPU':          cpu}
4078 summary_info += {'host endianness':   build_machine.endian()}
4079 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4080 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4081 if 'cpp' in all_languages
4082   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4083 else
4084   summary_info += {'C++ compiler':      false}
4085 endif
4086 if targetos == 'darwin'
4087   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4088 endif
4089 option_cflags = (get_option('debug') ? ['-g'] : [])
4090 if get_option('optimization') != 'plain'
4091   option_cflags += ['-O' + get_option('optimization')]
4092 endif
4093 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4094 if 'cpp' in all_languages
4095   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4096 endif
4097 if targetos == 'darwin'
4098   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4099 endif
4100 link_args = get_option('c_link_args')
4101 if link_args.length() > 0
4102   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4103 endif
4104 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4105 if 'cpp' in all_languages
4106   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4107 endif
4108 if 'objc' in all_languages
4109   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4110 endif
4111 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4112 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4113 summary_info += {'PIE':               get_option('b_pie')}
4114 summary_info += {'static build':      get_option('prefer_static')}
4115 summary_info += {'malloc trim support': has_malloc_trim}
4116 summary_info += {'membarrier':        have_membarrier}
4117 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4118 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4119 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4120 summary_info += {'memory allocator':  get_option('malloc')}
4121 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4122 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4123 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4124 if get_option('gprof')
4125   gprof_info = 'YES (deprecated)'
4126 else
4127   gprof_info = get_option('gprof')
4128 endif
4129 summary_info += {'gprof':             gprof_info}
4130 summary_info += {'gcov':              get_option('b_coverage')}
4131 summary_info += {'thread sanitizer':  get_option('tsan')}
4132 summary_info += {'CFI support':       get_option('cfi')}
4133 if get_option('cfi')
4134   summary_info += {'CFI debug support': get_option('cfi_debug')}
4135 endif
4136 summary_info += {'strip binaries':    get_option('strip')}
4137 summary_info += {'sparse':            sparse}
4138 summary_info += {'mingw32 support':   targetos == 'windows'}
4139 summary(summary_info, bool_yn: true, section: 'Compilation')
4140
4141 # snarf the cross-compilation information for tests
4142 summary_info = {}
4143 have_cross = false
4144 foreach target: target_dirs
4145   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4146   if fs.exists(tcg_mak)
4147     config_cross_tcg = keyval.load(tcg_mak)
4148     if 'CC' in config_cross_tcg
4149       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4150       have_cross = true
4151     endif
4152   endif
4153 endforeach
4154 if have_cross
4155   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4156 endif
4157
4158 # Targets and accelerators
4159 summary_info = {}
4160 if have_system
4161   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4162   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4163   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4164   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4165   summary_info += {'Xen support':       xen.found()}
4166   if xen.found()
4167     summary_info += {'xen ctrl version':  xen.version()}
4168   endif
4169   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4170 endif
4171 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4172 if config_all.has_key('CONFIG_TCG')
4173   if get_option('tcg_interpreter')
4174     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4175   else
4176     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4177   endif
4178   summary_info += {'TCG plugins':       get_option('plugins')}
4179   summary_info += {'TCG debug enabled': get_option('debug_tcg')}
4180 endif
4181 summary_info += {'target list':       ' '.join(target_dirs)}
4182 if have_system
4183   summary_info += {'default devices':   get_option('default_devices')}
4184   summary_info += {'out of process emulation': multiprocess_allowed}
4185   summary_info += {'vfio-user server': vfio_user_server_allowed}
4186 endif
4187 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4188
4189 # Block layer
4190 summary_info = {}
4191 summary_info += {'coroutine backend': coroutine_backend}
4192 summary_info += {'coroutine pool':    have_coroutine_pool}
4193 if have_block
4194   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4195   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4196   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4197   summary_info += {'VirtFS (9P) support':    have_virtfs}
4198   summary_info += {'VirtFS (9P) Proxy Helper support (deprecated)': have_virtfs_proxy_helper}
4199   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4200   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4201   summary_info += {'bochs support':     get_option('bochs').allowed()}
4202   summary_info += {'cloop support':     get_option('cloop').allowed()}
4203   summary_info += {'dmg support':       get_option('dmg').allowed()}
4204   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4205   summary_info += {'vdi support':       get_option('vdi').allowed()}
4206   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4207   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4208   summary_info += {'vpc support':       get_option('vpc').allowed()}
4209   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4210   summary_info += {'qed support':       get_option('qed').allowed()}
4211   summary_info += {'parallels support': get_option('parallels').allowed()}
4212   summary_info += {'FUSE exports':      fuse}
4213   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4214 endif
4215 summary(summary_info, bool_yn: true, section: 'Block layer support')
4216
4217 # Crypto
4218 summary_info = {}
4219 summary_info += {'TLS priority':      get_option('tls_priority')}
4220 summary_info += {'GNUTLS support':    gnutls}
4221 if gnutls.found()
4222   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4223 endif
4224 summary_info += {'libgcrypt':         gcrypt}
4225 summary_info += {'nettle':            nettle}
4226 if nettle.found()
4227    summary_info += {'  XTS':             xts != 'private'}
4228 endif
4229 summary_info += {'AF_ALG support':    have_afalg}
4230 summary_info += {'rng-none':          get_option('rng_none')}
4231 summary_info += {'Linux keyring':     have_keyring}
4232 summary(summary_info, bool_yn: true, section: 'Crypto')
4233
4234 # UI
4235 summary_info = {}
4236 if targetos == 'darwin'
4237   summary_info += {'Cocoa support':           cocoa}
4238 endif
4239 summary_info += {'SDL support':       sdl}
4240 summary_info += {'SDL image support': sdl_image}
4241 summary_info += {'GTK support':       gtk}
4242 summary_info += {'pixman':            pixman}
4243 summary_info += {'VTE support':       vte}
4244 summary_info += {'PNG support':       png}
4245 summary_info += {'VNC support':       vnc}
4246 if vnc.found()
4247   summary_info += {'VNC SASL support':  sasl}
4248   summary_info += {'VNC JPEG support':  jpeg}
4249 endif
4250 summary_info += {'spice protocol support': spice_protocol}
4251 if spice_protocol.found()
4252   summary_info += {'  spice server support': spice}
4253 endif
4254 summary_info += {'curses support':    curses}
4255 summary_info += {'brlapi support':    brlapi}
4256 summary(summary_info, bool_yn: true, section: 'User interface')
4257
4258 # Audio backends
4259 summary_info = {}
4260 if targetos not in ['darwin', 'haiku', 'windows']
4261   summary_info += {'OSS support':     oss}
4262   summary_info += {'sndio support':   sndio}
4263 elif targetos == 'darwin'
4264   summary_info += {'CoreAudio support': coreaudio}
4265 elif targetos == 'windows'
4266   summary_info += {'DirectSound support': dsound}
4267 endif
4268 if targetos == 'linux'
4269   summary_info += {'ALSA support':    alsa}
4270   summary_info += {'PulseAudio support': pulse}
4271 endif
4272 summary_info += {'PipeWire support':  pipewire}
4273 summary_info += {'JACK support':      jack}
4274 summary(summary_info, bool_yn: true, section: 'Audio backends')
4275
4276 # Network backends
4277 summary_info = {}
4278 if targetos == 'darwin'
4279   summary_info += {'vmnet.framework support': vmnet}
4280 endif
4281 summary_info += {'AF_XDP support':    libxdp}
4282 summary_info += {'slirp support':     slirp}
4283 summary_info += {'vde support':       vde}
4284 summary_info += {'netmap support':    have_netmap}
4285 summary_info += {'l2tpv3 support':    have_l2tpv3}
4286 summary(summary_info, bool_yn: true, section: 'Network backends')
4287
4288 # Libraries
4289 summary_info = {}
4290 summary_info += {'libtasn1':          tasn1}
4291 summary_info += {'PAM':               pam}
4292 summary_info += {'iconv support':     iconv}
4293 summary_info += {'virgl support':     virgl}
4294 summary_info += {'blkio support':     blkio}
4295 summary_info += {'curl support':      curl}
4296 summary_info += {'Multipath support': mpathpersist}
4297 summary_info += {'Linux AIO support': libaio}
4298 summary_info += {'Linux io_uring support': linux_io_uring}
4299 summary_info += {'ATTR/XATTR support': libattr}
4300 summary_info += {'RDMA support':      rdma}
4301 summary_info += {'PVRDMA support':    have_pvrdma}
4302 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4303 summary_info += {'libcap-ng support': libcap_ng}
4304 summary_info += {'bpf support':       libbpf}
4305 summary_info += {'rbd support':       rbd}
4306 summary_info += {'smartcard support': cacard}
4307 summary_info += {'U2F support':       u2f}
4308 summary_info += {'libusb':            libusb}
4309 summary_info += {'usb net redir':     usbredir}
4310 summary_info += {'OpenGL support (epoxy)': opengl}
4311 summary_info += {'GBM':               gbm}
4312 summary_info += {'libiscsi support':  libiscsi}
4313 summary_info += {'libnfs support':    libnfs}
4314 if targetos == 'windows'
4315   if have_ga
4316     summary_info += {'QGA VSS support':   have_qga_vss}
4317   endif
4318 endif
4319 summary_info += {'seccomp support':   seccomp}
4320 summary_info += {'GlusterFS support': glusterfs}
4321 summary_info += {'TPM support':       have_tpm}
4322 summary_info += {'libssh support':    libssh}
4323 summary_info += {'lzo support':       lzo}
4324 summary_info += {'snappy support':    snappy}
4325 summary_info += {'bzip2 support':     libbzip2}
4326 summary_info += {'lzfse support':     liblzfse}
4327 summary_info += {'zstd support':      zstd}
4328 summary_info += {'NUMA host support': numa}
4329 summary_info += {'capstone':          capstone}
4330 summary_info += {'libpmem support':   libpmem}
4331 summary_info += {'libdaxctl support': libdaxctl}
4332 summary_info += {'libudev':           libudev}
4333 # Dummy dependency, keep .found()
4334 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4335 summary_info += {'selinux':           selinux}
4336 summary_info += {'libdw':             libdw}
4337 summary(summary_info, bool_yn: true, section: 'Dependencies')
4338
4339 if host_arch == 'unknown'
4340   message()
4341   warning('UNSUPPORTED HOST CPU')
4342   message()
4343   message('Support for CPU host architecture ' + cpu + ' is not currently')
4344   message('maintained. The QEMU project does not guarantee that QEMU will')
4345   message('compile or work on this host CPU. You can help by volunteering')
4346   message('to maintain it and providing a build host for our continuous')
4347   message('integration setup.')
4348   if get_option('tcg').allowed() and target_dirs.length() > 0
4349     message()
4350     message('configure has succeeded and you can continue to build, but')
4351     message('QEMU will use a slow interpreter to emulate the target CPU.')
4352   endif
4353 endif
4354
4355 if not supported_oses.contains(targetos)
4356   message()
4357   warning('UNSUPPORTED HOST OS')
4358   message()
4359   message('Support for host OS ' + targetos + 'is not currently maintained.')
4360   message('configure has succeeded and you can continue to build, but')
4361   message('the QEMU project does not guarantee that QEMU will compile or')
4362   message('work on this operating system. You can help by volunteering')
4363   message('to maintain it and providing a build host for our continuous')
4364   message('integration setup. This will ensure that future versions of QEMU')
4365   message('will keep working on ' + targetos + '.')
4366 endif
4367
4368 if host_arch == 'unknown' or not supported_oses.contains(targetos)
4369   message()
4370   message('If you want to help supporting QEMU on this platform, please')
4371   message('contact the developers at qemu-devel@nongnu.org.')
4372 endif