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('prefer_static')
 258   qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static'
 259 endif
 260
 261 # Meson currently only handles pie as a boolean for now, so if the user
 262 # has explicitly disabled PIE we need to extend our cflags.
 263 #
 264 # -no-pie is supposedly a linker flag that has no effect on the compiler
 265 # command line, but some distros, that didn't quite know what they were
 266 # doing, made local changes to gcc's specs file that turned it into
 267 # a compiler command-line flag.
 268 #
 269 # What about linker flags?  For a static build, no PIE is implied by -static
 270 # which we added above (and if it's not because of the same specs patching,
 271 # there's nothing we can do: compilation will fail, report a bug to your
 272 # distro and do not use --disable-pie in the meanwhile).  For dynamic linking,
 273 # instead, we can't add -no-pie because it overrides -shared: the linker then
 274 # tries to build an executable instead of a shared library and fails.  So
 275 # don't add -no-pie anywhere and cross fingers. :(
 276 if not get_option('b_pie')
 277   qemu_common_flags += cc.get_supported_arguments('-fno-pie', '-no-pie')
 278 endif
 279
 280 if not get_option('stack_protector').disabled()
 281   stack_protector_probe = '''
 282     int main(int argc, char *argv[])
 283     {
 284       char arr[64], *p = arr, *c = argv[argc - 1];
 285       while (*c) {
 286           *p++ = *c++;
 287       }
 288       return 0;
 289     }'''
 290   have_stack_protector = false
 291   foreach arg : ['-fstack-protector-strong', '-fstack-protector-all']
 292     # We need to check both a compile and a link, since some compiler
 293     # setups fail only on a .c->.o compile and some only at link time
 294     if cc.compiles(stack_protector_probe, args: ['-Werror', arg]) and \
 295        cc.links(stack_protector_probe, args: ['-Werror', arg])
 296       have_stack_protector = true
 297       qemu_cflags += arg
 298       qemu_ldflags += arg
 299       break
 300     endif
 301   endforeach
 302   get_option('stack_protector') \
 303     .require(have_stack_protector, error_message: 'Stack protector not supported')
 304 endif
 305
 306 coroutine_backend = get_option('coroutine_backend')
 307 ucontext_probe = '''
 308   #include <ucontext.h>
 309   #ifdef __stub_makecontext
 310   #error Ignoring glibc stub makecontext which will always fail
 311   #endif
 312   int main(void) { makecontext(0, 0, 0); return 0; }'''
 313
 314 # On Windows the only valid backend is the Windows specific one.
 315 # For POSIX prefer ucontext, but it's not always possible. The fallback
 316 # is sigcontext.
 317 supported_backends = []
 318 if targetos == 'windows'
 319   supported_backends += ['windows']
 320 else
 321   if targetos != 'darwin' and cc.links(ucontext_probe)
 322     supported_backends += ['ucontext']
 323   endif
 324   supported_backends += ['sigaltstack']
 325 endif
 326
 327 if coroutine_backend == 'auto'
 328   coroutine_backend = supported_backends[0]
 329 elif coroutine_backend not in supported_backends
 330   error('"@0@" backend requested but not available.  Available backends: @1@' \
 331         .format(coroutine_backend, ', '.join(supported_backends)))
 332 endif
 333
 334 # Compiles if SafeStack *not* enabled
 335 safe_stack_probe = '''
 336   int main(void)
 337   {
 338   #if defined(__has_feature)
 339   #if __has_feature(safe_stack)
 340   #error SafeStack Enabled
 341   #endif
 342   #endif
 343       return 0;
 344   }'''
 345 if get_option('safe_stack') != not cc.compiles(safe_stack_probe)
 346   safe_stack_arg = get_option('safe_stack') ? '-fsanitize=safe-stack' : '-fno-sanitize=safe-stack'
 347   if get_option('safe_stack') != not cc.compiles(safe_stack_probe, args: safe_stack_arg)
 348     error(get_option('safe_stack') \
 349           ? 'SafeStack not supported by your compiler' \
 350           : 'Cannot disable SafeStack')
 351   endif
 352   qemu_cflags += safe_stack_arg
 353   qemu_ldflags += safe_stack_arg
 354 endif
 355 if get_option('safe_stack') and coroutine_backend != 'ucontext'
 356   error('SafeStack is only supported with the ucontext coroutine backend')
 357 endif
 358
 359 if get_option('sanitizers')
 360   if cc.has_argument('-fsanitize=address')
 361     qemu_cflags = ['-fsanitize=address'] + qemu_cflags
 362     qemu_ldflags = ['-fsanitize=address'] + qemu_ldflags
 363   endif
 364
 365   # Detect static linking issue with ubsan - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
 366   if cc.links('int main(int argc, char **argv) { return argc + 1; }',
 367               args: [qemu_ldflags, '-fsanitize=undefined'])
 368     qemu_cflags = ['-fsanitize=undefined'] + qemu_cflags
 369     qemu_ldflags = ['-fsanitize=undefined'] + qemu_ldflags
 370   endif
 371 endif
 372
 373 # Thread sanitizer is, for now, much noisier than the other sanitizers;
 374 # keep it separate until that is not the case.
 375 if get_option('tsan')
 376   if get_option('sanitizers')
 377     error('TSAN is not supported with other sanitizers')
 378   endif
 379   if not cc.has_function('__tsan_create_fiber',
 380                          args: '-fsanitize=thread',
 381                          prefix: '#include <sanitizer/tsan_interface.h>')
 382     error('Cannot enable TSAN due to missing fiber annotation interface')
 383   endif
 384   qemu_cflags = ['-fsanitize=thread'] + qemu_cflags
 385   qemu_ldflags = ['-fsanitize=thread'] + qemu_ldflags
 386 endif
 387
 388 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
 389 # The combination is known as "full relro", because .got.plt is read-only too.
 390 qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
 391
 392 if targetos == 'windows'
 393   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
 394   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
 395 endif
 396
 397 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
 398 if targetos != 'sunos' and not get_option('tsan')
 399   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--warn-common')
 400 endif
 401
 402 if get_option('fuzzing')
 403   # Specify a filter to only instrument code that is directly related to
 404   # virtual-devices.
 405   configure_file(output: 'instrumentation-filter',
 406                  input: 'scripts/oss-fuzz/instrumentation-filter-template',
 407                  copy: true)
 408
 409   if cc.compiles('int main () { return 0; }',
 410                   name: '-fsanitize-coverage-allowlist=/dev/null',
 411                  args: ['-fsanitize-coverage-allowlist=/dev/null',
 412                         '-fsanitize-coverage=trace-pc'] )
 413     qemu_common_flags += ['-fsanitize-coverage-allowlist=instrumentation-filter']
 414   endif
 415
 416   if get_option('fuzzing_engine') == ''
 417     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
 418     # compiled code.  To build non-fuzzer binaries with --enable-fuzzing, link
 419     # everything with fsanitize=fuzzer-no-link. Otherwise, the linker will be
 420     # unable to bind the fuzzer-related callbacks added by instrumentation.
 421     qemu_common_flags += ['-fsanitize=fuzzer-no-link']
 422     qemu_ldflags += ['-fsanitize=fuzzer-no-link']
 423     # For the actual fuzzer binaries, we need to link against the libfuzzer
 424     # library. They need to be configurable, to support OSS-Fuzz
 425     fuzz_exe_ldflags = ['-fsanitize=fuzzer']
 426   else
 427     # LIB_FUZZING_ENGINE was set; assume we are running on OSS-Fuzz, and
 428     # the needed CFLAGS have already been provided
 429     fuzz_exe_ldflags = get_option('fuzzing_engine').split()
 430   endif
 431 endif
 432
 433 add_global_arguments(qemu_common_flags, native: false, language: all_languages)
 434 add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
 435
 436 # Collect warnings that we want to enable
 437
 438 warn_flags = [
 439   '-Wundef',
 440   '-Wwrite-strings',
 441   '-Wmissing-prototypes',
 442   '-Wstrict-prototypes',
 443   '-Wredundant-decls',
 444   '-Wold-style-declaration',
 445   '-Wold-style-definition',
 446   '-Wtype-limits',
 447   '-Wformat-security',
 448   '-Wformat-y2k',
 449   '-Winit-self',
 450   '-Wignored-qualifiers',
 451   '-Wempty-body',
 452   '-Wnested-externs',
 453   '-Wendif-labels',
 454   '-Wexpansion-to-defined',
 455   '-Wimplicit-fallthrough=2',
 456   '-Wmissing-format-attribute',
 457   '-Wno-initializer-overrides',
 458   '-Wno-missing-include-dirs',
 459   '-Wno-shift-negative-value',
 460   '-Wno-string-plus-int',
 461   '-Wno-typedef-redefinition',
 462   '-Wno-tautological-type-limit-compare',
 463   '-Wno-psabi',
 464   '-Wno-gnu-variable-sized-type-not-at-end',
 465 ]
 466
 467 if targetos != 'darwin'
 468   warn_flags += ['-Wthread-safety']
 469 endif
 470
 471 # Set up C++ compiler flags
 472 qemu_cxxflags = []
 473 if 'cpp' in all_languages
 474   qemu_cxxflags = ['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'] + qemu_cflags
 475 endif
 476
 477 add_project_arguments(qemu_cflags, native: false, language: 'c')
 478 add_project_arguments(cc.get_supported_arguments(warn_flags), native: false, language: 'c')
 479 if 'cpp' in all_languages
 480   add_project_arguments(qemu_cxxflags, native: false, language: 'cpp')
 481   add_project_arguments(cxx.get_supported_arguments(warn_flags), native: false, language: 'cpp')
 482 endif
 483 if 'objc' in all_languages
 484   # Note sanitizer flags are not applied to Objective-C sources!
 485   add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
 486 endif
 487 if targetos == 'linux'
 488   add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
 489                         '-isystem', 'linux-headers',
 490                         language: all_languages)
 491 endif
 492
 493 add_project_arguments('-iquote', '.',
 494                       '-iquote', meson.current_source_dir(),
 495                       '-iquote', meson.current_source_dir() / 'include',
 496                       language: all_languages)
 497
 498 # If a host-specific include directory exists, list that first...
 499 host_include = meson.current_source_dir() / 'host/include/'
 500 if fs.is_dir(host_include / host_arch)
 501   add_project_arguments('-iquote', host_include / host_arch,
 502                         language: all_languages)
 503 endif
 504 # ... followed by the generic fallback.
 505 add_project_arguments('-iquote', host_include / 'generic',
 506                       language: all_languages)
 507
 508 sparse = find_program('cgcc', required: get_option('sparse'))
 509 if sparse.found()
 510   run_target('sparse',
 511              command: [find_program('scripts/check_sparse.py'),
 512                        'compile_commands.json', sparse.full_path(), '-Wbitwise',
 513                        '-Wno-transparent-union', '-Wno-old-initializer',
 514                        '-Wno-non-pointer-null'])
 515 endif
 516
 517 ###########################################
 518 # Target-specific checks and dependencies #
 519 ###########################################
 520
 521 # Fuzzing
 522 if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
 523     not cc.links('''
 524           #include <stdint.h>
 525           #include <sys/types.h>
 526           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 527           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 528         ''',
 529         args: ['-Werror', '-fsanitize=fuzzer'])
 530   error('Your compiler does not support -fsanitize=fuzzer')
 531 endif
 532
 533 # Tracing backends
 534 if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
 535   error('ftrace is supported only on Linux')
 536 endif
 537 if 'syslog' in get_option('trace_backends') and not cc.compiles('''
 538     #include <syslog.h>
 539     int main(void) {
 540         openlog("qemu", LOG_PID, LOG_DAEMON);
 541         syslog(LOG_INFO, "configure");
 542         return 0;
 543     }''')
 544   error('syslog is not supported on this system')
 545 endif
 546
 547 # Miscellaneous Linux-only features
 548 get_option('mpath') \
 549   .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
 550
 551 multiprocess_allowed = get_option('multiprocess') \
 552   .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
 553   .allowed()
 554
 555 vfio_user_server_allowed = get_option('vfio_user_server') \
 556   .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
 557   .allowed()
 558
 559 have_tpm = get_option('tpm') \
 560   .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
 561   .allowed()
 562
 563 # vhost
 564 have_vhost_user = get_option('vhost_user') \
 565   .disable_auto_if(targetos != 'linux') \
 566   .require(targetos != 'windows',
 567            error_message: 'vhost-user is not available on Windows').allowed()
 568 have_vhost_vdpa = get_option('vhost_vdpa') \
 569   .require(targetos == 'linux',
 570            error_message: 'vhost-vdpa is only available on Linux').allowed()
 571 have_vhost_kernel = get_option('vhost_kernel') \
 572   .require(targetos == 'linux',
 573            error_message: 'vhost-kernel is only available on Linux').allowed()
 574 have_vhost_user_crypto = get_option('vhost_crypto') \
 575   .require(have_vhost_user,
 576            error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
 577
 578 have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
 579
 580 have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
 581 have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
 582 have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
 583 have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
 584
 585 # Target-specific libraries and flags
 586 libm = cc.find_library('m', required: false)
 587 threads = dependency('threads')
 588 util = cc.find_library('util', required: false)
 589 winmm = []
 590 socket = []
 591 version_res = []
 592 coref = []
 593 iokit = []
 594 emulator_link_args = []
 595 nvmm =not_found
 596 hvf = not_found
 597 midl = not_found
 598 widl = not_found
 599 pathcch = not_found
 600 host_dsosuf = '.so'
 601 if targetos == 'windows'
 602   midl = find_program('midl', required: false)
 603   widl = find_program('widl', required: false)
 604   pathcch = cc.find_library('pathcch')
 605   socket = cc.find_library('ws2_32')
 606   winmm = cc.find_library('winmm')
 607
 608   win = import('windows')
 609   version_res = win.compile_resources('version.rc',
 610                                       depend_files: files('pc-bios/qemu-nsis.ico'),
 611                                       include_directories: include_directories('.'))
 612   host_dsosuf = '.dll'
 613 elif targetos == 'darwin'
 614   coref = dependency('appleframeworks', modules: 'CoreFoundation')
 615   iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
 616   host_dsosuf = '.dylib'
 617 elif targetos == 'sunos'
 618   socket = [cc.find_library('socket'),
 619             cc.find_library('nsl'),
 620             cc.find_library('resolv')]
 621 elif targetos == 'haiku'
 622   socket = [cc.find_library('posix_error_mapper'),
 623             cc.find_library('network'),
 624             cc.find_library('bsd')]
 625 elif targetos == 'openbsd'
 626   if get_option('tcg').allowed() and target_dirs.length() > 0
 627     # Disable OpenBSD W^X if available
 628     emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
 629   endif
 630 endif
 631
 632 # Target-specific configuration of accelerators
 633 accelerators = []
 634 if get_option('kvm').allowed() and targetos == 'linux'
 635   accelerators += 'CONFIG_KVM'
 636 endif
 637 if get_option('whpx').allowed() and targetos == 'windows'
 638   if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
 639     error('WHPX requires 64-bit host')
 640   elif cc.has_header('winhvplatform.h', required: get_option('whpx')) and \
 641        cc.has_header('winhvemulation.h', required: get_option('whpx'))
 642     accelerators += 'CONFIG_WHPX'
 643   endif
 644 endif
 645 if get_option('hvf').allowed()
 646   hvf = dependency('appleframeworks', modules: 'Hypervisor',
 647                    required: get_option('hvf'))
 648   if hvf.found()
 649     accelerators += 'CONFIG_HVF'
 650   endif
 651 endif
 652 if targetos == 'netbsd'
 653   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
 654   if nvmm.found()
 655     accelerators += 'CONFIG_NVMM'
 656   endif
 657 endif
 658
 659 tcg_arch = host_arch
 660 if get_option('tcg').allowed()
 661   if host_arch == 'unknown'
 662     if not get_option('tcg_interpreter')
 663       error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
 664     endif
 665   elif get_option('tcg_interpreter')
 666     warning('Use of the TCG interpreter is not recommended on this host')
 667     warning('architecture. There is a native TCG execution backend available')
 668     warning('which provides substantially better performance and reliability.')
 669     warning('It is strongly recommended to remove the --enable-tcg-interpreter')
 670     warning('configuration option on this architecture to use the native')
 671     warning('backend.')
 672   endif
 673   if get_option('tcg_interpreter')
 674     tcg_arch = 'tci'
 675   elif host_arch == 'x86_64'
 676     tcg_arch = 'i386'
 677   elif host_arch == 'ppc64'
 678     tcg_arch = 'ppc'
 679   endif
 680   add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
 681                         language: all_languages)
 682
 683   accelerators += 'CONFIG_TCG'
 684 endif
 685
 686 if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
 687   error('KVM not available on this platform')
 688 endif
 689 if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
 690   error('HVF not available on this platform')
 691 endif
 692 if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
 693   error('NVMM not available on this platform')
 694 endif
 695 if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
 696   error('WHPX not available on this platform')
 697 endif
 698
 699 ################
 700 # Dependencies #
 701 ################
 702
 703 # When bumping glib minimum version, please check also whether to increase
 704 # the _WIN32_WINNT setting in osdep.h according to the value from glib
 705 glib_req_ver = '>=2.56.0'
 706 glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
 707                     method: 'pkg-config')
 708 glib_cflags = []
 709 if enable_modules
 710   gmodule = dependency('gmodule-export-2.0', version: glib_req_ver, required: true,
 711                        method: 'pkg-config')
 712 elif get_option('plugins')
 713   gmodule = dependency('gmodule-no-export-2.0', version: glib_req_ver, required: true,
 714                        method: 'pkg-config')
 715 else
 716   gmodule = not_found
 717 endif
 718
 719 # This workaround is required due to a bug in pkg-config file for glib as it
 720 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
 721 if targetos == 'windows' and get_option('prefer_static')
 722   glib_cflags += ['-DGLIB_STATIC_COMPILATION']
 723 endif
 724
 725 # Sanity check that the current size_t matches the
 726 # size that glib thinks it should be. This catches
 727 # problems on multi-arch where people try to build
 728 # 32-bit QEMU while pointing at 64-bit glib headers
 729
 730 if not cc.compiles('''
 731   #include <glib.h>
 732   #include <unistd.h>
 733
 734   #define QEMU_BUILD_BUG_ON(x) \
 735   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
 736
 737   int main(void) {
 738      QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
 739      return 0;
 740   }''', dependencies: glib_pc, args: glib_cflags)
 741   error('''sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
 742         You probably need to set PKG_CONFIG_LIBDIR" to point
 743         to the right pkg-config files for your build target.''')
 744 endif
 745
 746 # Silence clang warnings triggered by glib < 2.57.2
 747 if not cc.compiles('''
 748   #include <glib.h>
 749   typedef struct Foo {
 750     int i;
 751   } Foo;
 752   static void foo_free(Foo *f)
 753   {
 754     g_free(f);
 755   }
 756   G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
 757   int main(void) { return 0; }''', dependencies: glib_pc, args: ['-Wunused-function', '-Werror'])
 758   glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
 759 endif
 760 glib = declare_dependency(dependencies: [glib_pc, gmodule],
 761                           compile_args: glib_cflags,
 762                           version: glib_pc.version())
 763
 764 # Check whether glib has gslice, which we have to avoid for correctness.
 765 # TODO: remove this check and the corresponding workaround (qtree) when
 766 # the minimum supported glib is >= 2.75.3
 767 glib_has_gslice = glib.version().version_compare('<2.75.3')
 768
 769 # override glib dep to include the above refinements
 770 meson.override_dependency('glib-2.0', glib)
 771
 772 # The path to glib.h is added to all compilation commands.
 773 add_project_dependencies(glib.partial_dependency(compile_args: true, includes: true),
 774                          native: false, language: all_languages)
 775
 776 gio = not_found
 777 gdbus_codegen = not_found
 778 gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
 779 if not get_option('gio').auto() or have_system
 780   gio = dependency('gio-2.0', required: get_option('gio'),
 781                    method: 'pkg-config')
 782   if gio.found() and not cc.links('''
 783     #include <gio/gio.h>
 784     int main(void)
 785     {
 786       g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
 787       return 0;
 788     }''', dependencies: [glib, gio])
 789     if get_option('gio').enabled()
 790       error('The installed libgio is broken for static linking')
 791     endif
 792     gio = not_found
 793   endif
 794   if gio.found()
 795     gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
 796                                  required: get_option('gio'))
 797     gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
 798                           method: 'pkg-config')
 799     gio = declare_dependency(dependencies: [gio, gio_unix],
 800                              version: gio.version())
 801   endif
 802 endif
 803 if gdbus_codegen.found() and get_option('cfi')
 804   gdbus_codegen = not_found
 805   gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
 806 endif
 807
 808 xml_pp = find_program('scripts/xml-preprocess.py')
 809
 810 lttng = not_found
 811 if 'ust' in get_option('trace_backends')
 812   lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
 813                      method: 'pkg-config')
 814 endif
 815 pixman = not_found
 816 if not get_option('pixman').auto() or have_system or have_tools
 817   pixman = dependency('pixman-1', required: get_option('pixman'), version:'>=0.21.8',
 818                       method: 'pkg-config')
 819 endif
 820
 821 zlib = dependency('zlib', required: true)
 822
 823 libaio = not_found
 824 if not get_option('linux_aio').auto() or have_block
 825   libaio = cc.find_library('aio', has_headers: ['libaio.h'],
 826                            required: get_option('linux_aio'))
 827 endif
 828
 829 linux_io_uring_test = '''
 830   #include <liburing.h>
 831   #include <linux/errqueue.h>
 832
 833   int main(void) { return 0; }'''
 834
 835 linux_io_uring = not_found
 836 if not get_option('linux_io_uring').auto() or have_block
 837   linux_io_uring = dependency('liburing', version: '>=0.3',
 838                               required: get_option('linux_io_uring'),
 839                               method: 'pkg-config')
 840   if not cc.links(linux_io_uring_test)
 841     linux_io_uring = not_found
 842   endif
 843 endif
 844
 845 libnfs = not_found
 846 if not get_option('libnfs').auto() or have_block
 847   libnfs = dependency('libnfs', version: '>=1.9.3',
 848                       required: get_option('libnfs'),
 849                       method: 'pkg-config')
 850 endif
 851
 852 libattr_test = '''
 853   #include <stddef.h>
 854   #include <sys/types.h>
 855   #ifdef CONFIG_LIBATTR
 856   #include <attr/xattr.h>
 857   #else
 858   #include <sys/xattr.h>
 859   #endif
 860   int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
 861
 862 libattr = not_found
 863 have_old_libattr = false
 864 if get_option('attr').allowed()
 865   if cc.links(libattr_test)
 866     libattr = declare_dependency()
 867   else
 868     libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
 869                               required: get_option('attr'))
 870     if libattr.found() and not \
 871       cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
 872       libattr = not_found
 873       if get_option('attr').enabled()
 874         error('could not link libattr')
 875       else
 876         warning('could not link libattr, disabling')
 877       endif
 878     else
 879       have_old_libattr = libattr.found()
 880     endif
 881   endif
 882 endif
 883
 884 cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
 885                    required: get_option('cocoa'))
 886
 887 vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
 888 if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
 889                                               'VMNET_BRIDGED_MODE',
 890                                               dependencies: vmnet)
 891   vmnet = not_found
 892   if get_option('vmnet').enabled()
 893     error('vmnet.framework API is outdated')
 894   else
 895     warning('vmnet.framework API is outdated, disabling')
 896   endif
 897 endif
 898
 899 seccomp = not_found
 900 seccomp_has_sysrawrc = false
 901 if not get_option('seccomp').auto() or have_system or have_tools
 902   seccomp = dependency('libseccomp', version: '>=2.3.0',
 903                        required: get_option('seccomp'),
 904                        method: 'pkg-config')
 905   if seccomp.found()
 906     seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
 907                                                 'SCMP_FLTATR_API_SYSRAWRC',
 908                                                 dependencies: seccomp)
 909   endif
 910 endif
 911
 912 libcap_ng = not_found
 913 if not get_option('cap_ng').auto() or have_system or have_tools
 914   libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
 915                               required: get_option('cap_ng'))
 916 endif
 917 if libcap_ng.found() and not cc.links('''
 918    #include <cap-ng.h>
 919    int main(void)
 920    {
 921      capng_capability_to_name(CAPNG_EFFECTIVE);
 922      return 0;
 923    }''', dependencies: libcap_ng)
 924   libcap_ng = not_found
 925   if get_option('cap_ng').enabled()
 926     error('could not link libcap-ng')
 927   else
 928     warning('could not link libcap-ng, disabling')
 929   endif
 930 endif
 931
 932 if get_option('xkbcommon').auto() and not have_system and not have_tools
 933   xkbcommon = not_found
 934 else
 935   xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
 936                          method: 'pkg-config')
 937 endif
 938
 939 slirp = not_found
 940 if not get_option('slirp').auto() or have_system
 941   slirp = dependency('slirp', required: get_option('slirp'),
 942                      method: 'pkg-config')
 943   # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
 944   # it passes function pointers within libslirp as callbacks for timers.
 945   # When using a system-wide shared libslirp, the type information for the
 946   # callback is missing and the timer call produces a false positive with CFI.
 947   # Do not use the "version" keyword argument to produce a better error.
 948   # with control-flow integrity.
 949   if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
 950     if get_option('slirp').enabled()
 951       error('Control-Flow Integrity requires libslirp 4.7.')
 952     else
 953       warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
 954       slirp = not_found
 955     endif
 956   endif
 957 endif
 958
 959 vde = not_found
 960 if not get_option('vde').auto() or have_system or have_tools
 961   vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
 962                            required: get_option('vde'))
 963 endif
 964 if vde.found() and not cc.links('''
 965    #include <libvdeplug.h>
 966    int main(void)
 967    {
 968      struct vde_open_args a = {0, 0, 0};
 969      char s[] = "";
 970      vde_open(s, s, &a);
 971      return 0;
 972    }''', dependencies: vde)
 973   vde = not_found
 974   if get_option('cap_ng').enabled()
 975     error('could not link libvdeplug')
 976   else
 977     warning('could not link libvdeplug, disabling')
 978   endif
 979 endif
 980
 981 pulse = not_found
 982 if not get_option('pa').auto() or (targetos == 'linux' and have_system)
 983   pulse = dependency('libpulse', required: get_option('pa'),
 984                      method: 'pkg-config')
 985 endif
 986 alsa = not_found
 987 if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
 988   alsa = dependency('alsa', required: get_option('alsa'),
 989                     method: 'pkg-config')
 990 endif
 991 jack = not_found
 992 if not get_option('jack').auto() or have_system
 993   jack = dependency('jack', required: get_option('jack'),
 994                     method: 'pkg-config')
 995 endif
 996 pipewire = not_found
 997 if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
 998   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
 999                     required: get_option('pipewire'),
1000                     method: 'pkg-config')
1001 endif
1002 sndio = not_found
1003 if not get_option('sndio').auto() or have_system
1004   sndio = dependency('sndio', required: get_option('sndio'),
1005                     method: 'pkg-config')
1006 endif
1007
1008 spice_protocol = not_found
1009 if not get_option('spice_protocol').auto() or have_system
1010   spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
1011                               required: get_option('spice_protocol'),
1012                               method: 'pkg-config')
1013 endif
1014 spice = not_found
1015 if get_option('spice') \
1016              .disable_auto_if(not have_system) \
1017              .require(pixman.found(),
1018                       error_message: 'cannot enable SPICE if pixman is not available') \
1019              .allowed()
1020   spice = dependency('spice-server', version: '>=0.14.0',
1021                      required: get_option('spice'),
1022                      method: 'pkg-config')
1023 endif
1024 spice_headers = spice.partial_dependency(compile_args: true, includes: true)
1025
1026 rt = cc.find_library('rt', required: false)
1027
1028 libiscsi = not_found
1029 if not get_option('libiscsi').auto() or have_block
1030   libiscsi = dependency('libiscsi', version: '>=1.9.0',
1031                          required: get_option('libiscsi'),
1032                          method: 'pkg-config')
1033 endif
1034 zstd = not_found
1035 if not get_option('zstd').auto() or have_block
1036   zstd = dependency('libzstd', version: '>=1.4.0',
1037                     required: get_option('zstd'),
1038                     method: 'pkg-config')
1039 endif
1040 virgl = not_found
1041
1042 have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
1043 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
1044   virgl = dependency('virglrenderer',
1045                      method: 'pkg-config',
1046                      required: get_option('virglrenderer'))
1047   if virgl.found()
1048     config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
1049                          cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
1050                                        prefix: '#include <virglrenderer.h>',
1051                                        dependencies: virgl))
1052   endif
1053 endif
1054 rutabaga = not_found
1055 if not get_option('rutabaga_gfx').auto() or have_system or have_vhost_user_gpu
1056   rutabaga = dependency('rutabaga_gfx_ffi',
1057                          method: 'pkg-config',
1058                          required: get_option('rutabaga_gfx'))
1059 endif
1060 blkio = not_found
1061 if not get_option('blkio').auto() or have_block
1062   blkio = dependency('blkio',
1063                      method: 'pkg-config',
1064                      required: get_option('blkio'))
1065 endif
1066 curl = not_found
1067 if not get_option('curl').auto() or have_block
1068   curl = dependency('libcurl', version: '>=7.29.0',
1069                     method: 'pkg-config',
1070                     required: get_option('curl'))
1071 endif
1072 libudev = not_found
1073 if targetos == 'linux' and (have_system or have_tools)
1074   libudev = dependency('libudev',
1075                        method: 'pkg-config',
1076                        required: get_option('libudev'))
1077 endif
1078
1079 mpathlibs = [libudev]
1080 mpathpersist = not_found
1081 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1082   mpath_test_source = '''
1083     #include <libudev.h>
1084     #include <mpath_persist.h>
1085     unsigned mpath_mx_alloc_len = 1024;
1086     int logsink;
1087     static struct config *multipath_conf;
1088     extern struct udev *udev;
1089     extern struct config *get_multipath_config(void);
1090     extern void put_multipath_config(struct config *conf);
1091     struct udev *udev;
1092     struct config *get_multipath_config(void) { return multipath_conf; }
1093     void put_multipath_config(struct config *conf) { }
1094     int main(void) {
1095         udev = udev_new();
1096         multipath_conf = mpath_lib_init();
1097         return 0;
1098     }'''
1099   libmpathpersist = cc.find_library('mpathpersist',
1100                                     required: get_option('mpath'))
1101   if libmpathpersist.found()
1102     mpathlibs += libmpathpersist
1103     if get_option('prefer_static')
1104       mpathlibs += cc.find_library('devmapper',
1105                                      required: get_option('mpath'))
1106     endif
1107     mpathlibs += cc.find_library('multipath',
1108                                  required: get_option('mpath'))
1109     foreach lib: mpathlibs
1110       if not lib.found()
1111         mpathlibs = []
1112         break
1113       endif
1114     endforeach
1115     if mpathlibs.length() == 0
1116       msg = 'Dependencies missing for libmpathpersist'
1117     elif cc.links(mpath_test_source, dependencies: mpathlibs)
1118       mpathpersist = declare_dependency(dependencies: mpathlibs)
1119     else
1120       msg = 'Cannot detect libmpathpersist API'
1121     endif
1122     if not mpathpersist.found()
1123       if get_option('mpath').enabled()
1124         error(msg)
1125       else
1126         warning(msg + ', disabling')
1127       endif
1128     endif
1129   endif
1130 endif
1131
1132 iconv = not_found
1133 curses = not_found
1134 if have_system and get_option('curses').allowed()
1135   curses_test = '''
1136     #if defined(__APPLE__) || defined(__OpenBSD__)
1137     #define _XOPEN_SOURCE_EXTENDED 1
1138     #endif
1139     #include <locale.h>
1140     #include <curses.h>
1141     #include <wchar.h>
1142     int main(void) {
1143       wchar_t wch = L'w';
1144       setlocale(LC_ALL, "");
1145       resize_term(0, 0);
1146       addwstr(L"wide chars\n");
1147       addnwstr(&wch, 1);
1148       add_wch(WACS_DEGREE);
1149       return 0;
1150     }'''
1151
1152   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1153   curses = dependency(curses_dep_list,
1154                       required: false,
1155                       method: 'pkg-config')
1156   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1157   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1158   if curses.found()
1159     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1160       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1161                                   version: curses.version())
1162     else
1163       msg = 'curses package not usable'
1164       curses = not_found
1165     endif
1166   endif
1167   if not curses.found()
1168     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1169     if targetos != 'windows' and not has_curses_h
1170       message('Trying with /usr/include/ncursesw')
1171       curses_compile_args += ['-I/usr/include/ncursesw']
1172       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1173     endif
1174     if has_curses_h
1175       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1176       foreach curses_libname : curses_libname_list
1177         libcurses = cc.find_library(curses_libname,
1178                                     required: false)
1179         if libcurses.found()
1180           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1181             curses = declare_dependency(compile_args: curses_compile_args,
1182                                         dependencies: [libcurses])
1183             break
1184           else
1185             msg = 'curses library not usable'
1186           endif
1187         endif
1188       endforeach
1189     endif
1190   endif
1191   if get_option('iconv').allowed()
1192     foreach link_args : [ ['-liconv'], [] ]
1193       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1194       # We need to use libiconv if available because mixing libiconv's headers with
1195       # the system libc does not work.
1196       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1197       # included in the command line and libiconv will not be found.
1198       if cc.links('''
1199         #include <iconv.h>
1200         int main(void) {
1201           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1202           return conv != (iconv_t) -1;
1203         }''', args: link_args, dependencies: glib)
1204         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1205         break
1206       endif
1207     endforeach
1208   endif
1209   if curses.found() and not iconv.found()
1210     if get_option('iconv').enabled()
1211       error('iconv not available')
1212     endif
1213     msg = 'iconv required for curses UI but not available'
1214     curses = not_found
1215   endif
1216   if not curses.found() and msg != ''
1217     if get_option('curses').enabled()
1218       error(msg)
1219     else
1220       warning(msg + ', disabling')
1221     endif
1222   endif
1223 endif
1224
1225 brlapi = not_found
1226 if not get_option('brlapi').auto() or have_system
1227   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1228                          required: get_option('brlapi'))
1229   if brlapi.found() and not cc.links('''
1230      #include <brlapi.h>
1231      #include <stddef.h>
1232      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1233     brlapi = not_found
1234     if get_option('brlapi').enabled()
1235       error('could not link brlapi')
1236     else
1237       warning('could not link brlapi, disabling')
1238     endif
1239   endif
1240 endif
1241
1242 sdl = not_found
1243 if not get_option('sdl').auto() or have_system
1244   sdl = dependency('sdl2', required: get_option('sdl'))
1245   sdl_image = not_found
1246 endif
1247 if sdl.found()
1248   # Some versions of SDL have problems with -Wundef
1249   if not cc.compiles('''
1250                      #include <SDL.h>
1251                      #include <SDL_syswm.h>
1252                      int main(int argc, char *argv[]) { return 0; }
1253                      ''', dependencies: sdl, args: '-Werror=undef')
1254     sdl = declare_dependency(compile_args: '-Wno-undef',
1255                              dependencies: sdl,
1256                              version: sdl.version())
1257   endif
1258   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1259                          method: 'pkg-config')
1260 else
1261   if get_option('sdl_image').enabled()
1262     error('sdl-image required, but SDL was @0@'.format(
1263           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1264   endif
1265   sdl_image = not_found
1266 endif
1267
1268 rbd = not_found
1269 if not get_option('rbd').auto() or have_block
1270   librados = cc.find_library('rados', required: get_option('rbd'))
1271   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1272                            required: get_option('rbd'))
1273   if librados.found() and librbd.found()
1274     if cc.links('''
1275       #include <stdio.h>
1276       #include <rbd/librbd.h>
1277       int main(void) {
1278         rados_t cluster;
1279         rados_create(&cluster, NULL);
1280         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1281         #error
1282         #endif
1283         return 0;
1284       }''', dependencies: [librbd, librados])
1285       rbd = declare_dependency(dependencies: [librbd, librados])
1286     elif get_option('rbd').enabled()
1287       error('librbd >= 1.12.0 required')
1288     else
1289       warning('librbd >= 1.12.0 not found, disabling')
1290     endif
1291   endif
1292 endif
1293
1294 glusterfs = not_found
1295 glusterfs_ftruncate_has_stat = false
1296 glusterfs_iocb_has_stat = false
1297 if not get_option('glusterfs').auto() or have_block
1298   glusterfs = dependency('glusterfs-api', version: '>=3',
1299                          required: get_option('glusterfs'),
1300                          method: 'pkg-config')
1301   if glusterfs.found()
1302     glusterfs_ftruncate_has_stat = cc.links('''
1303       #include <glusterfs/api/glfs.h>
1304
1305       int
1306       main(void)
1307       {
1308           /* new glfs_ftruncate() passes two additional args */
1309           return glfs_ftruncate(NULL, 0, NULL, NULL);
1310       }
1311     ''', dependencies: glusterfs)
1312     glusterfs_iocb_has_stat = cc.links('''
1313       #include <glusterfs/api/glfs.h>
1314
1315       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1316       static void
1317       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1318       {}
1319
1320       int
1321       main(void)
1322       {
1323           glfs_io_cbk iocb = &glusterfs_iocb;
1324           iocb(NULL, 0 , NULL, NULL, NULL);
1325           return 0;
1326       }
1327     ''', dependencies: glusterfs)
1328   endif
1329 endif
1330
1331 hv_balloon = false
1332 if get_option('hv_balloon').allowed() and have_system
1333   if cc.links('''
1334     #include <string.h>
1335     #include <gmodule.h>
1336     int main(void) {
1337         GTree *tree;
1338
1339         tree = g_tree_new((GCompareFunc)strcmp);
1340         (void)g_tree_node_first(tree);
1341         g_tree_destroy(tree);
1342         return 0;
1343     }
1344   ''', dependencies: glib)
1345     hv_balloon = true
1346   else
1347     if get_option('hv_balloon').enabled()
1348       error('could not enable hv-balloon, update your glib')
1349     else
1350       warning('could not find glib support for hv-balloon, disabling')
1351     endif
1352   endif
1353 endif
1354
1355 libssh = not_found
1356 if not get_option('libssh').auto() or have_block
1357   libssh = dependency('libssh', version: '>=0.8.7',
1358                     method: 'pkg-config',
1359                     required: get_option('libssh'))
1360 endif
1361
1362 libbzip2 = not_found
1363 if not get_option('bzip2').auto() or have_block
1364   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1365                              required: get_option('bzip2'))
1366   if libbzip2.found() and not cc.links('''
1367      #include <bzlib.h>
1368      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1369     libbzip2 = not_found
1370     if get_option('bzip2').enabled()
1371       error('could not link libbzip2')
1372     else
1373       warning('could not link libbzip2, disabling')
1374     endif
1375   endif
1376 endif
1377
1378 liblzfse = not_found
1379 if not get_option('lzfse').auto() or have_block
1380   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1381                              required: get_option('lzfse'))
1382 endif
1383 if liblzfse.found() and not cc.links('''
1384    #include <lzfse.h>
1385    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1386   liblzfse = not_found
1387   if get_option('lzfse').enabled()
1388     error('could not link liblzfse')
1389   else
1390     warning('could not link liblzfse, disabling')
1391   endif
1392 endif
1393
1394 oss = not_found
1395 if get_option('oss').allowed() and have_system
1396   if not cc.has_header('sys/soundcard.h')
1397     # not found
1398   elif targetos == 'netbsd'
1399     oss = cc.find_library('ossaudio', required: get_option('oss'))
1400   else
1401     oss = declare_dependency()
1402   endif
1403
1404   if not oss.found()
1405     if get_option('oss').enabled()
1406       error('OSS not found')
1407     endif
1408   endif
1409 endif
1410 dsound = not_found
1411 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1412   if cc.has_header('dsound.h')
1413     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1414   endif
1415
1416   if not dsound.found()
1417     if get_option('dsound').enabled()
1418       error('DirectSound not found')
1419     endif
1420   endif
1421 endif
1422
1423 coreaudio = not_found
1424 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1425   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1426                          required: get_option('coreaudio'))
1427 endif
1428
1429 opengl = not_found
1430 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1431   epoxy = dependency('epoxy', method: 'pkg-config',
1432                       required: get_option('opengl'))
1433   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1434     opengl = epoxy
1435   elif get_option('opengl').enabled()
1436     error('epoxy/egl.h not found')
1437   endif
1438 endif
1439 gbm = not_found
1440 if (have_system or have_tools) and (virgl.found() or opengl.found())
1441   gbm = dependency('gbm', method: 'pkg-config', required: false)
1442 endif
1443 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1444
1445 gnutls = not_found
1446 gnutls_crypto = not_found
1447 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1448   # For general TLS support our min gnutls matches
1449   # that implied by our platform support matrix
1450   #
1451   # For the crypto backends, we look for a newer
1452   # gnutls:
1453   #
1454   #   Version 3.6.8  is needed to get XTS
1455   #   Version 3.6.13 is needed to get PBKDF
1456   #   Version 3.6.14 is needed to get HW accelerated XTS
1457   #
1458   # If newer enough gnutls isn't available, we can
1459   # still use a different crypto backend to satisfy
1460   # the platform support requirements
1461   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1462                              method: 'pkg-config',
1463                              required: false)
1464   if gnutls_crypto.found()
1465     gnutls = gnutls_crypto
1466   else
1467     # Our min version if all we need is TLS
1468     gnutls = dependency('gnutls', version: '>=3.5.18',
1469                         method: 'pkg-config',
1470                         required: get_option('gnutls'))
1471   endif
1472 endif
1473
1474 # We prefer use of gnutls for crypto, unless the options
1475 # explicitly asked for nettle or gcrypt.
1476 #
1477 # If gnutls isn't available for crypto, then we'll prefer
1478 # gcrypt over nettle for performance reasons.
1479 gcrypt = not_found
1480 nettle = not_found
1481 hogweed = not_found
1482 xts = 'none'
1483
1484 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1485   error('Only one of gcrypt & nettle can be enabled')
1486 endif
1487
1488 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1489 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1490   gnutls_crypto = not_found
1491 endif
1492
1493 if not gnutls_crypto.found()
1494   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1495     gcrypt = dependency('libgcrypt', version: '>=1.8',
1496                         method: 'config-tool',
1497                         required: get_option('gcrypt'))
1498     # Debian has removed -lgpg-error from libgcrypt-config
1499     # as it "spreads unnecessary dependencies" which in
1500     # turn breaks static builds...
1501     if gcrypt.found() and get_option('prefer_static')
1502       gcrypt = declare_dependency(dependencies:
1503         [gcrypt,
1504          cc.find_library('gpg-error', required: true)],
1505         version: gcrypt.version())
1506     endif
1507   endif
1508   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1509     nettle = dependency('nettle', version: '>=3.4',
1510                         method: 'pkg-config',
1511                         required: get_option('nettle'))
1512     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1513       xts = 'private'
1514     endif
1515   endif
1516 endif
1517
1518 gmp = dependency('gmp', required: false, method: 'pkg-config')
1519 if nettle.found() and gmp.found()
1520   hogweed = dependency('hogweed', version: '>=3.4',
1521                        method: 'pkg-config',
1522                        required: get_option('nettle'))
1523 endif
1524
1525
1526 gtk = not_found
1527 gtkx11 = not_found
1528 vte = not_found
1529 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1530
1531 if get_option('gtk') \
1532              .disable_auto_if(not have_system) \
1533              .require(pixman.found(),
1534                       error_message: 'cannot enable GTK if pixman is not available') \
1535              .allowed()
1536   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1537                    method: 'pkg-config',
1538                    required: get_option('gtk'))
1539   if gtk.found()
1540     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1541                         method: 'pkg-config',
1542                         required: false)
1543     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1544                              version: gtk.version())
1545
1546     if not get_option('vte').auto() or have_system
1547       vte = dependency('vte-2.91',
1548                        method: 'pkg-config',
1549                        required: get_option('vte'))
1550     endif
1551   elif have_gtk_clipboard
1552     error('GTK clipboard requested, but GTK not found')
1553   endif
1554 endif
1555
1556 x11 = not_found
1557 if gtkx11.found()
1558   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1559 endif
1560 png = not_found
1561 if get_option('png').allowed() and have_system
1562    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1563                     method: 'pkg-config')
1564 endif
1565 vnc = not_found
1566 jpeg = not_found
1567 sasl = not_found
1568 if get_option('vnc') \
1569              .disable_auto_if(not have_system) \
1570              .require(pixman.found(),
1571                       error_message: 'cannot enable VNC if pixman is not available') \
1572              .allowed()
1573   vnc = declare_dependency() # dummy dependency
1574   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1575                     method: 'pkg-config')
1576   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1577                          required: get_option('vnc_sasl'))
1578   if sasl.found()
1579     sasl = declare_dependency(dependencies: sasl,
1580                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1581   endif
1582 endif
1583
1584 pam = not_found
1585 if not get_option('auth_pam').auto() or have_system
1586   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1587                         required: get_option('auth_pam'))
1588 endif
1589 if pam.found() and not cc.links('''
1590    #include <stddef.h>
1591    #include <security/pam_appl.h>
1592    int main(void) {
1593      const char *service_name = "qemu";
1594      const char *user = "frank";
1595      const struct pam_conv pam_conv = { 0 };
1596      pam_handle_t *pamh = NULL;
1597      pam_start(service_name, user, &pam_conv, &pamh);
1598      return 0;
1599    }''', dependencies: pam)
1600   pam = not_found
1601   if get_option('auth_pam').enabled()
1602     error('could not link libpam')
1603   else
1604     warning('could not link libpam, disabling')
1605   endif
1606 endif
1607
1608 snappy = not_found
1609 if not get_option('snappy').auto() or have_system
1610   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1611                            required: get_option('snappy'))
1612 endif
1613 if snappy.found() and not cc.links('''
1614    #include <snappy-c.h>
1615    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1616   snappy = not_found
1617   if get_option('snappy').enabled()
1618     error('could not link libsnappy')
1619   else
1620     warning('could not link libsnappy, disabling')
1621   endif
1622 endif
1623
1624 lzo = not_found
1625 if not get_option('lzo').auto() or have_system
1626   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1627                         required: get_option('lzo'))
1628 endif
1629 if lzo.found() and not cc.links('''
1630    #include <lzo/lzo1x.h>
1631    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1632   lzo = not_found
1633   if get_option('lzo').enabled()
1634     error('could not link liblzo2')
1635   else
1636     warning('could not link liblzo2, disabling')
1637   endif
1638 endif
1639
1640 numa = not_found
1641 if not get_option('numa').auto() or have_system or have_tools
1642   numa = cc.find_library('numa', has_headers: ['numa.h'],
1643                               required: get_option('numa'))
1644 endif
1645 if numa.found() and not cc.links('''
1646    #include <numa.h>
1647    int main(void) { return numa_available(); }
1648    ''', dependencies: numa)
1649   numa = not_found
1650   if get_option('numa').enabled()
1651     error('could not link numa')
1652   else
1653     warning('could not link numa, disabling')
1654   endif
1655 endif
1656
1657 rdma = not_found
1658 if not get_option('rdma').auto() or have_system
1659   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1660   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1661                                required: get_option('rdma')),
1662                cc.find_library('ibverbs', required: get_option('rdma')),
1663                libumad]
1664   rdma = declare_dependency(dependencies: rdma_libs)
1665   foreach lib: rdma_libs
1666     if not lib.found()
1667       rdma = not_found
1668     endif
1669   endforeach
1670 endif
1671
1672 xen = not_found
1673 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1674   xencontrol = dependency('xencontrol', required: false,
1675                           method: 'pkg-config')
1676   if xencontrol.found()
1677     xen_pc = declare_dependency(version: xencontrol.version(),
1678       dependencies: [
1679         xencontrol,
1680         # disabler: true makes xen_pc.found() return false if any is not found
1681         dependency('xenstore', required: false,
1682                    method: 'pkg-config',
1683                    disabler: true),
1684         dependency('xenforeignmemory', required: false,
1685                    method: 'pkg-config',
1686                    disabler: true),
1687         dependency('xengnttab', required: false,
1688                    method: 'pkg-config',
1689                    disabler: true),
1690         dependency('xenevtchn', required: false,
1691                    method: 'pkg-config',
1692                    disabler: true),
1693         dependency('xendevicemodel', required: false,
1694                    method: 'pkg-config',
1695                    disabler: true),
1696         # optional, no "disabler: true"
1697         dependency('xentoolcore', required: false,
1698                    method: 'pkg-config')])
1699     if xen_pc.found()
1700       xen = xen_pc
1701     endif
1702   endif
1703   if not xen.found()
1704     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
1705     xen_libs = {
1706       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1707       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1708       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1709       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1710       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1711     }
1712     xen_deps = {}
1713     foreach ver: xen_tests
1714       # cache the various library tests to avoid polluting the logs
1715       xen_test_deps = []
1716       foreach l: xen_libs[ver]
1717         if l not in xen_deps
1718           xen_deps += { l: cc.find_library(l, required: false) }
1719         endif
1720         xen_test_deps += xen_deps[l]
1721       endforeach
1722
1723       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1724       xen_version = ver.split('.')
1725       xen_ctrl_version = xen_version[0] + \
1726         ('0' + xen_version[1]).substring(-2) + \
1727         ('0' + xen_version[2]).substring(-2)
1728       if cc.links(files('scripts/xen-detect.c'),
1729                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1730                   dependencies: xen_test_deps)
1731         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1732         break
1733       endif
1734     endforeach
1735   endif
1736   if xen.found()
1737     accelerators += 'CONFIG_XEN'
1738   elif get_option('xen').enabled()
1739     error('could not compile and link Xen test program')
1740   endif
1741 endif
1742 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1743   .require(xen.found(),
1744            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1745   .require(targetos == 'linux',
1746            error_message: 'Xen PCI passthrough not available on this platform') \
1747   .require(cpu == 'x86'  or cpu == 'x86_64',
1748            error_message: 'Xen PCI passthrough not available on this platform') \
1749   .allowed()
1750
1751
1752 cacard = not_found
1753 if not get_option('smartcard').auto() or have_system
1754   cacard = dependency('libcacard', required: get_option('smartcard'),
1755                       version: '>=2.5.1', method: 'pkg-config')
1756 endif
1757 u2f = not_found
1758 if have_system
1759   u2f = dependency('u2f-emu', required: get_option('u2f'),
1760                    method: 'pkg-config')
1761 endif
1762 canokey = not_found
1763 if have_system
1764   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1765                    method: 'pkg-config')
1766 endif
1767 usbredir = not_found
1768 if not get_option('usb_redir').auto() or have_system
1769   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1770                         version: '>=0.6', method: 'pkg-config')
1771 endif
1772 libusb = not_found
1773 if not get_option('libusb').auto() or have_system
1774   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1775                       version: '>=1.0.13', method: 'pkg-config')
1776 endif
1777
1778 libpmem = not_found
1779 if not get_option('libpmem').auto() or have_system
1780   libpmem = dependency('libpmem', required: get_option('libpmem'),
1781                        method: 'pkg-config')
1782 endif
1783 libdaxctl = not_found
1784 if not get_option('libdaxctl').auto() or have_system
1785   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1786                          version: '>=57', method: 'pkg-config')
1787 endif
1788 tasn1 = not_found
1789 if gnutls.found()
1790   tasn1 = dependency('libtasn1',
1791                      method: 'pkg-config')
1792 endif
1793 keyutils = not_found
1794 if not get_option('libkeyutils').auto() or have_block
1795   keyutils = dependency('libkeyutils', required: get_option('libkeyutils'),
1796                         method: 'pkg-config')
1797 endif
1798
1799 has_gettid = cc.has_function('gettid')
1800
1801 # libselinux
1802 selinux = dependency('libselinux',
1803                      required: get_option('selinux'),
1804                      method: 'pkg-config')
1805
1806 # Malloc tests
1807
1808 malloc = []
1809 if get_option('malloc') == 'system'
1810   has_malloc_trim = \
1811     get_option('malloc_trim').allowed() and \
1812     cc.has_function('malloc_trim', prefix: '#include <malloc.h>')
1813 else
1814   has_malloc_trim = false
1815   malloc = cc.find_library(get_option('malloc'), required: true)
1816 endif
1817 if not has_malloc_trim and get_option('malloc_trim').enabled()
1818   if get_option('malloc') == 'system'
1819     error('malloc_trim not available on this platform.')
1820   else
1821     error('malloc_trim not available with non-libc memory allocator')
1822   endif
1823 endif
1824
1825 gnu_source_prefix = '''
1826   #ifndef _GNU_SOURCE
1827   #define _GNU_SOURCE
1828   #endif
1829 '''
1830
1831 # Check whether the glibc provides STATX_BASIC_STATS
1832
1833 has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_source_prefix)
1834
1835 # Check whether statx() provides mount ID information
1836
1837 has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
1838
1839 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1840   .require(targetos == 'linux',
1841            error_message: 'vhost_user_blk_server requires linux') \
1842   .require(have_vhost_user,
1843            error_message: 'vhost_user_blk_server requires vhost-user support') \
1844   .disable_auto_if(not have_tools and not have_system) \
1845   .allowed()
1846
1847 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1848   error('Cannot enable fuse-lseek while fuse is disabled')
1849 endif
1850
1851 fuse = dependency('fuse3', required: get_option('fuse'),
1852                   version: '>=3.1', method: 'pkg-config')
1853
1854 fuse_lseek = not_found
1855 if get_option('fuse_lseek').allowed()
1856   if fuse.version().version_compare('>=3.8')
1857     # Dummy dependency
1858     fuse_lseek = declare_dependency()
1859   elif get_option('fuse_lseek').enabled()
1860     if fuse.found()
1861       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1862     else
1863       error('fuse-lseek requires libfuse, which was not found')
1864     endif
1865   endif
1866 endif
1867
1868 have_libvduse = (targetos == 'linux')
1869 if get_option('libvduse').enabled()
1870     if targetos != 'linux'
1871         error('libvduse requires linux')
1872     endif
1873 elif get_option('libvduse').disabled()
1874     have_libvduse = false
1875 endif
1876
1877 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1878 if get_option('vduse_blk_export').enabled()
1879     if targetos != 'linux'
1880         error('vduse_blk_export requires linux')
1881     elif not have_libvduse
1882         error('vduse_blk_export requires libvduse support')
1883     endif
1884 elif get_option('vduse_blk_export').disabled()
1885     have_vduse_blk_export = false
1886 endif
1887
1888 # libbpf
1889 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1890 if libbpf.found() and not cc.links('''
1891    #include <bpf/libbpf.h>
1892    int main(void)
1893    {
1894      bpf_object__destroy_skeleton(NULL);
1895      return 0;
1896    }''', dependencies: libbpf)
1897   libbpf = not_found
1898   if get_option('bpf').enabled()
1899     error('libbpf skeleton test failed')
1900   else
1901     warning('libbpf skeleton test failed, disabling')
1902   endif
1903 endif
1904
1905 # libxdp
1906 libxdp = not_found
1907 if not get_option('af_xdp').auto() or have_system
1908     libxdp = dependency('libxdp', required: get_option('af_xdp'),
1909                         version: '>=1.4.0', method: 'pkg-config')
1910 endif
1911
1912 # libdw
1913 libdw = not_found
1914 if not get_option('libdw').auto() or \
1915         (not get_option('prefer_static') and (have_system or have_user))
1916     libdw = dependency('libdw',
1917                        method: 'pkg-config',
1918                        required: get_option('libdw'))
1919 endif
1920
1921 #################
1922 # config-host.h #
1923 #################
1924
1925 audio_drivers_selected = []
1926 if have_system
1927   audio_drivers_available = {
1928     'alsa': alsa.found(),
1929     'coreaudio': coreaudio.found(),
1930     'dsound': dsound.found(),
1931     'jack': jack.found(),
1932     'oss': oss.found(),
1933     'pa': pulse.found(),
1934     'pipewire': pipewire.found(),
1935     'sdl': sdl.found(),
1936     'sndio': sndio.found(),
1937   }
1938   foreach k, v: audio_drivers_available
1939     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1940   endforeach
1941
1942   # Default to native drivers first, OSS second, SDL third
1943   audio_drivers_priority = \
1944     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1945     (targetos == 'linux' ? [] : [ 'sdl' ])
1946   audio_drivers_default = []
1947   foreach k: audio_drivers_priority
1948     if audio_drivers_available[k]
1949       audio_drivers_default += k
1950     endif
1951   endforeach
1952
1953   foreach k: get_option('audio_drv_list')
1954     if k == 'default'
1955       audio_drivers_selected += audio_drivers_default
1956     elif not audio_drivers_available[k]
1957       error('Audio driver "@0@" not available.'.format(k))
1958     else
1959       audio_drivers_selected += k
1960     endif
1961   endforeach
1962 endif
1963 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1964                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1965
1966 if get_option('cfi')
1967   cfi_flags=[]
1968   # Check for dependency on LTO
1969   if not get_option('b_lto')
1970     error('Selected Control-Flow Integrity but LTO is disabled')
1971   endif
1972   if enable_modules
1973     error('Selected Control-Flow Integrity is not compatible with modules')
1974   endif
1975   # Check for cfi flags. CFI requires LTO so we can't use
1976   # get_supported_arguments, but need a more complex "compiles" which allows
1977   # custom arguments
1978   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1979                  args: ['-flto', '-fsanitize=cfi-icall'] )
1980     cfi_flags += '-fsanitize=cfi-icall'
1981   else
1982     error('-fsanitize=cfi-icall is not supported by the compiler')
1983   endif
1984   if cc.compiles('int main () { return 0; }',
1985                  name: '-fsanitize-cfi-icall-generalize-pointers',
1986                  args: ['-flto', '-fsanitize=cfi-icall',
1987                         '-fsanitize-cfi-icall-generalize-pointers'] )
1988     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1989   else
1990     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1991   endif
1992   if get_option('cfi_debug')
1993     if cc.compiles('int main () { return 0; }',
1994                    name: '-fno-sanitize-trap=cfi-icall',
1995                    args: ['-flto', '-fsanitize=cfi-icall',
1996                           '-fno-sanitize-trap=cfi-icall'] )
1997       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1998     else
1999       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
2000     endif
2001   endif
2002   add_global_arguments(cfi_flags, native: false, language: all_languages)
2003   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
2004 endif
2005
2006 have_host_block_device = (targetos != 'darwin' or
2007     cc.has_header('IOKit/storage/IOMedia.h'))
2008
2009 dbus_display = get_option('dbus_display') \
2010   .require(gio.version().version_compare('>=2.64'),
2011            error_message: '-display dbus requires glib>=2.64') \
2012   .require(gdbus_codegen.found(),
2013            error_message: gdbus_codegen_error.format('-display dbus')) \
2014   .allowed()
2015
2016 have_virtfs = get_option('virtfs') \
2017     .require(targetos == 'linux' or targetos == 'darwin',
2018              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
2019     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
2020              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
2021     .require(targetos == 'darwin' or libattr.found(),
2022              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
2023     .disable_auto_if(not have_tools and not have_system) \
2024     .allowed()
2025
2026 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
2027     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
2028     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
2029     .disable_auto_if(not have_tools) \
2030     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
2031     .allowed()
2032
2033 if get_option('block_drv_ro_whitelist') == ''
2034   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
2035 else
2036   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
2037         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2038 endif
2039 if get_option('block_drv_rw_whitelist') == ''
2040   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2041 else
2042   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2043         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2044 endif
2045
2046 foreach k : get_option('trace_backends')
2047   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2048 endforeach
2049 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2050 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2051 if iasl.found()
2052   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2053 endif
2054 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2055 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2056 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2057 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2058 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2059
2060 qemu_firmwarepath = ''
2061 foreach k : get_option('qemu_firmwarepath')
2062   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2063 endforeach
2064 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2065
2066 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2067 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2068 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2069 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2070 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2071 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2072
2073 if enable_modules
2074   config_host_data.set('CONFIG_STAMP', run_command(
2075       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2076       meson.project_version(), get_option('pkgversion'), '--',
2077       meson.current_source_dir() / 'configure',
2078       capture: true, check: true).stdout().strip())
2079 endif
2080
2081 have_slirp_smbd = get_option('slirp_smbd') \
2082   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2083   .allowed()
2084 if have_slirp_smbd
2085   smbd_path = get_option('smbd')
2086   if smbd_path == ''
2087     smbd_path = (targetos == 'sunos' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2088   endif
2089   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2090 endif
2091
2092 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2093
2094 if get_option('module_upgrades') and not enable_modules
2095   error('Cannot enable module-upgrades as modules are not enabled')
2096 endif
2097 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2098
2099 config_host_data.set('CONFIG_ATTR', libattr.found())
2100 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2101 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2102 config_host_data.set('CONFIG_BSD', targetos in bsd_oses)
2103 config_host_data.set('CONFIG_COCOA', cocoa.found())
2104 config_host_data.set('CONFIG_DARWIN', targetos == 'darwin')
2105 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2106 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2107 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2108 config_host_data.set('CONFIG_LINUX', targetos == 'linux')
2109 config_host_data.set('CONFIG_POSIX', targetos != 'windows')
2110 config_host_data.set('CONFIG_WIN32', targetos == 'windows')
2111 config_host_data.set('CONFIG_LZO', lzo.found())
2112 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
2113 config_host_data.set('CONFIG_BLKIO', blkio.found())
2114 if blkio.found()
2115   config_host_data.set('CONFIG_BLKIO_VHOST_VDPA_FD',
2116                        blkio.version().version_compare('>=1.3.0'))
2117 endif
2118 config_host_data.set('CONFIG_CURL', curl.found())
2119 config_host_data.set('CONFIG_CURSES', curses.found())
2120 config_host_data.set('CONFIG_GBM', gbm.found())
2121 config_host_data.set('CONFIG_GIO', gio.found())
2122 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2123 if glusterfs.found()
2124   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2125   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2126   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2127   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2128   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2129   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2130 endif
2131 config_host_data.set('CONFIG_GTK', gtk.found())
2132 config_host_data.set('CONFIG_VTE', vte.found())
2133 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2134 config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
2135 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2136 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2137 config_host_data.set('CONFIG_EBPF', libbpf.found())
2138 config_host_data.set('CONFIG_AF_XDP', libxdp.found())
2139 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2140 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2141 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2142 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2143 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2144 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2145 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2146 config_host_data.set('CONFIG_MODULES', enable_modules)
2147 config_host_data.set('CONFIG_NUMA', numa.found())
2148 if numa.found()
2149   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2150                        cc.has_function('numa_has_preferred_many',
2151                                        dependencies: numa))
2152 endif
2153 config_host_data.set('CONFIG_OPENGL', opengl.found())
2154 config_host_data.set('CONFIG_PLUGIN', get_option('plugins'))
2155 config_host_data.set('CONFIG_RBD', rbd.found())
2156 config_host_data.set('CONFIG_RDMA', rdma.found())
2157 config_host_data.set('CONFIG_RELOCATABLE', get_option('relocatable'))
2158 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2159 config_host_data.set('CONFIG_SDL', sdl.found())
2160 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2161 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2162 if seccomp.found()
2163   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2164 endif
2165 config_host_data.set('CONFIG_PIXMAN', pixman.found())
2166 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2167 config_host_data.set('CONFIG_SOLARIS', targetos == 'sunos')
2168 if get_option('tcg').allowed()
2169   config_host_data.set('CONFIG_TCG', 1)
2170   config_host_data.set('CONFIG_TCG_INTERPRETER', tcg_arch == 'tci')
2171 endif
2172 config_host_data.set('CONFIG_TPM', have_tpm)
2173 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2174 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2175 config_host_data.set('CONFIG_VDE', vde.found())
2176 config_host_data.set('CONFIG_VHOST', have_vhost)
2177 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2178 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2179 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2180 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2181 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2182 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2183 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2184 config_host_data.set('CONFIG_VMNET', vmnet.found())
2185 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2186 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2187 config_host_data.set('CONFIG_PNG', png.found())
2188 config_host_data.set('CONFIG_VNC', vnc.found())
2189 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2190 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2191 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2192 config_host_data.set('CONFIG_VTE', vte.found())
2193 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2194 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2195 config_host_data.set('CONFIG_GETTID', has_gettid)
2196 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2197 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2198 config_host_data.set('CONFIG_TASN1', tasn1.found())
2199 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2200 config_host_data.set('CONFIG_NETTLE', nettle.found())
2201 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2202 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2203 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2204 config_host_data.set('CONFIG_STATX', has_statx)
2205 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2206 config_host_data.set('CONFIG_ZSTD', zstd.found())
2207 config_host_data.set('CONFIG_FUSE', fuse.found())
2208 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2209 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2210 if spice_protocol.found()
2211 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2212 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2213 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2214 endif
2215 config_host_data.set('CONFIG_SPICE', spice.found())
2216 config_host_data.set('CONFIG_X11', x11.found())
2217 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2218 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2219 config_host_data.set('CONFIG_SELINUX', selinux.found())
2220 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2221 config_host_data.set('CONFIG_LIBDW', libdw.found())
2222 if xen.found()
2223   # protect from xen.version() having less than three components
2224   xen_version = xen.version().split('.') + ['0', '0']
2225   xen_ctrl_version = xen_version[0] + \
2226     ('0' + xen_version[1]).substring(-2) + \
2227     ('0' + xen_version[2]).substring(-2)
2228   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2229 endif
2230 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2231 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2232 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2233 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2234
2235 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2236 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2237
2238 have_coroutine_pool = get_option('coroutine_pool')
2239 if get_option('debug_stack_usage') and have_coroutine_pool
2240   message('Disabling coroutine pool to measure stack usage')
2241   have_coroutine_pool = false
2242 endif
2243 config_host_data.set('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2244 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2245 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2246 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2247 config_host_data.set('CONFIG_DEBUG_TCG', get_option('debug_tcg'))
2248 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2249 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2250 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2251
2252 # has_header
2253 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2254 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2255 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2256 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2257 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2258 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2259 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2260 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2261 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2262 if targetos == 'windows'
2263   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2264 endif
2265
2266 # has_function
2267 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2268 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2269 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2270 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2271 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2272 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2273 config_host_data.set('CONFIG_GETCPU', cc.has_function('getcpu', prefix: gnu_source_prefix))
2274 config_host_data.set('CONFIG_SCHED_GETCPU', cc.has_function('sched_getcpu', prefix: '#include <sched.h>'))
2275 # Note that we need to specify prefix: here to avoid incorrectly
2276 # thinking that Windows has posix_memalign()
2277 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2278 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2279 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2280 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2281 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2282 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2283 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2284 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2285 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2286 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2287 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2288 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2289 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2290 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2291 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2292 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2293 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2294 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2295 if rbd.found()
2296   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2297                        cc.has_function('rbd_namespace_exists',
2298                                        dependencies: rbd,
2299                                        prefix: '#include <rbd/librbd.h>'))
2300 endif
2301 if rdma.found()
2302   config_host_data.set('HAVE_IBV_ADVISE_MR',
2303                        cc.has_function('ibv_advise_mr',
2304                                        dependencies: rdma,
2305                                        prefix: '#include <infiniband/verbs.h>'))
2306 endif
2307
2308 have_asan_fiber = false
2309 if get_option('sanitizers') and \
2310    not cc.has_function('__sanitizer_start_switch_fiber',
2311                          args: '-fsanitize=address',
2312                          prefix: '#include <sanitizer/asan_interface.h>')
2313   warning('Missing ASAN due to missing fiber annotation interface')
2314   warning('Without code annotation, the report may be inferior.')
2315 else
2316   have_asan_fiber = true
2317 endif
2318 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2319
2320 # has_header_symbol
2321 config_host_data.set('CONFIG_BLKZONED',
2322                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2323 config_host_data.set('CONFIG_EPOLL_CREATE1',
2324                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2325 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2326                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2327                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2328 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2329                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2330 config_host_data.set('CONFIG_FIEMAP',
2331                      cc.has_header('linux/fiemap.h') and
2332                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2333 config_host_data.set('CONFIG_GETRANDOM',
2334                      cc.has_function('getrandom') and
2335                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2336 config_host_data.set('CONFIG_INOTIFY',
2337                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2338 config_host_data.set('CONFIG_INOTIFY1',
2339                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2340 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2341                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2342 config_host_data.set('CONFIG_RTNETLINK',
2343                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2344 config_host_data.set('CONFIG_SYSMACROS',
2345                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2346 config_host_data.set('HAVE_OPTRESET',
2347                      cc.has_header_symbol('getopt.h', 'optreset'))
2348 config_host_data.set('HAVE_IPPROTO_MPTCP',
2349                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2350
2351 # has_member
2352 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2353                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2354                                    prefix: '#include <signal.h>'))
2355 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2356                      cc.has_member('struct stat', 'st_atim',
2357                                    prefix: '#include <sys/stat.h>'))
2358 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2359                      cc.has_member('struct blk_zone', 'capacity',
2360                                    prefix: '#include <linux/blkzoned.h>'))
2361
2362 # has_type
2363 config_host_data.set('CONFIG_IOVEC',
2364                      cc.has_type('struct iovec',
2365                                  prefix: '#include <sys/uio.h>'))
2366 config_host_data.set('HAVE_UTMPX',
2367                      cc.has_type('struct utmpx',
2368                                  prefix: '#include <utmpx.h>'))
2369
2370 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2371   #include <sys/eventfd.h>
2372   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2373 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2374   #include <unistd.h>
2375   int main(void) {
2376   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2377   return fdatasync(0);
2378   #else
2379   #error Not supported
2380   #endif
2381   }'''))
2382
2383 has_madvise = cc.links(gnu_source_prefix + '''
2384   #include <sys/types.h>
2385   #include <sys/mman.h>
2386   #include <stddef.h>
2387   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2388 missing_madvise_proto = false
2389 if has_madvise
2390   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2391   # but forget to prototype it. In this case, has_madvise will be true (the
2392   # test program links despite a compile warning). To detect the
2393   # missing-prototype case, we try again with a definitely-bogus prototype.
2394   # This will only compile if the system headers don't provide the prototype;
2395   # otherwise the conflicting prototypes will cause a compiler error.
2396   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2397     #include <sys/types.h>
2398     #include <sys/mman.h>
2399     #include <stddef.h>
2400     extern int madvise(int);
2401     int main(void) { return madvise(0); }''')
2402 endif
2403 config_host_data.set('CONFIG_MADVISE', has_madvise)
2404 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2405
2406 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2407   #include <sys/mman.h>
2408   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2409 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2410   #include <fcntl.h>
2411   #if !defined(AT_EMPTY_PATH)
2412   # error missing definition
2413   #else
2414   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2415   #endif'''))
2416 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2417   #include <sys/mman.h>
2418   #include <stddef.h>
2419   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2420
2421 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2422   #include <pthread.h>
2423
2424   static void *f(void *p) { return NULL; }
2425   int main(void)
2426   {
2427     pthread_t thread;
2428     pthread_create(&thread, 0, f, 0);
2429     pthread_setname_np(thread, "QEMU");
2430     return 0;
2431   }''', dependencies: threads))
2432 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2433   #include <pthread.h>
2434
2435   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2436   int main(void)
2437   {
2438     pthread_t thread;
2439     pthread_create(&thread, 0, f, 0);
2440     return 0;
2441   }''', dependencies: threads))
2442 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2443   #include <pthread.h>
2444   #include <pthread_np.h>
2445
2446   static void *f(void *p) { return NULL; }
2447   int main(void)
2448   {
2449     pthread_t thread;
2450     pthread_create(&thread, 0, f, 0);
2451     pthread_set_name_np(thread, "QEMU");
2452     return 0;
2453   }''', dependencies: threads))
2454 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2455   #include <pthread.h>
2456   #include <time.h>
2457
2458   int main(void)
2459   {
2460     pthread_condattr_t attr
2461     pthread_condattr_init(&attr);
2462     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2463     return 0;
2464   }''', dependencies: threads))
2465 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2466   #include <pthread.h>
2467
2468   static void *f(void *p) { return NULL; }
2469   int main(void)
2470   {
2471     int setsize = CPU_ALLOC_SIZE(64);
2472     pthread_t thread;
2473     cpu_set_t *cpuset;
2474     pthread_create(&thread, 0, f, 0);
2475     cpuset = CPU_ALLOC(64);
2476     CPU_ZERO_S(setsize, cpuset);
2477     pthread_setaffinity_np(thread, setsize, cpuset);
2478     pthread_getaffinity_np(thread, setsize, cpuset);
2479     CPU_FREE(cpuset);
2480     return 0;
2481   }''', dependencies: threads))
2482 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2483   #include <sys/signalfd.h>
2484   #include <stddef.h>
2485   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2486 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2487   #include <unistd.h>
2488   #include <fcntl.h>
2489   #include <limits.h>
2490
2491   int main(void)
2492   {
2493     int len, fd = 0;
2494     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2495     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2496     return 0;
2497   }'''))
2498
2499 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2500   #include <sys/mman.h>
2501   int main(void) {
2502     return mlockall(MCL_FUTURE);
2503   }'''))
2504
2505 have_l2tpv3 = false
2506 if get_option('l2tpv3').allowed() and have_system
2507   have_l2tpv3 = cc.has_type('struct mmsghdr',
2508     prefix: gnu_source_prefix + '''
2509       #include <sys/socket.h>
2510       #include <linux/ip.h>''')
2511 endif
2512 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2513
2514 have_netmap = false
2515 if get_option('netmap').allowed() and have_system
2516   have_netmap = cc.compiles('''
2517     #include <inttypes.h>
2518     #include <net/if.h>
2519     #include <net/netmap.h>
2520     #include <net/netmap_user.h>
2521     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2522     #error
2523     #endif
2524     int main(void) { return 0; }''')
2525   if not have_netmap and get_option('netmap').enabled()
2526     error('Netmap headers not available')
2527   endif
2528 endif
2529 config_host_data.set('CONFIG_NETMAP', have_netmap)
2530
2531 # Work around a system header bug with some kernel/XFS header
2532 # versions where they both try to define 'struct fsxattr':
2533 # xfs headers will not try to redefine structs from linux headers
2534 # if this macro is set.
2535 config_host_data.set('HAVE_FSXATTR', cc.links('''
2536   #include <linux/fs.h>
2537   struct fsxattr foo;
2538   int main(void) {
2539     return 0;
2540   }'''))
2541
2542 # Some versions of Mac OS X incorrectly define SIZE_MAX
2543 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2544     #include <stdint.h>
2545     #include <stdio.h>
2546     int main(void) {
2547         return printf("%zu", SIZE_MAX);
2548     }''', args: ['-Werror']))
2549
2550 # See if 64-bit atomic operations are supported.
2551 # Note that without __atomic builtins, we can only
2552 # assume atomic loads/stores max at pointer size.
2553 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2554   #include <stdint.h>
2555   int main(void)
2556   {
2557     uint64_t x = 0, y = 0;
2558     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2559     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2560     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2561     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2562     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2563     return 0;
2564   }'''))
2565
2566 has_int128_type = cc.compiles('''
2567   __int128_t a;
2568   __uint128_t b;
2569   int main(void) { b = a; }''')
2570 config_host_data.set('CONFIG_INT128_TYPE', has_int128_type)
2571
2572 has_int128 = has_int128_type and cc.links('''
2573   __int128_t a;
2574   __uint128_t b;
2575   int main (void) {
2576     a = a + b;
2577     b = a * b;
2578     a = a * a;
2579     return 0;
2580   }''')
2581 config_host_data.set('CONFIG_INT128', has_int128)
2582
2583 if has_int128_type
2584   # "do we have 128-bit atomics which are handled inline and specifically not
2585   # via libatomic". The reason we can't use libatomic is documented in the
2586   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2587   # We only care about these operations on 16-byte aligned pointers, so
2588   # force 16-byte alignment of the pointer, which may be greater than
2589   # __alignof(unsigned __int128) for the host.
2590   atomic_test_128 = '''
2591     int main(int ac, char **av) {
2592       __uint128_t *p = __builtin_assume_aligned(av[ac - 1], 16);
2593       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2594       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2595       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2596       return 0;
2597     }'''
2598   has_atomic128 = cc.links(atomic_test_128)
2599
2600   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2601
2602   if not has_atomic128
2603     # Even with __builtin_assume_aligned, the above test may have failed
2604     # without optimization enabled.  Try again with optimizations locally
2605     # enabled for the function.  See
2606     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2607     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2608     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2609
2610     if not has_atomic128_opt
2611       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2612         int main(void)
2613         {
2614           __uint128_t x = 0, y = 0;
2615           __sync_val_compare_and_swap_16(&x, y, x);
2616           return 0;
2617         }
2618       '''))
2619     endif
2620   endif
2621 endif
2622
2623 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2624   #include <sys/auxv.h>
2625   int main(void) {
2626     return getauxval(AT_HWCAP) == 0;
2627   }'''))
2628
2629 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2630   #include <linux/usbdevice_fs.h>
2631
2632   #ifndef USBDEVFS_GET_CAPABILITIES
2633   #error "USBDEVFS_GET_CAPABILITIES undefined"
2634   #endif
2635
2636   #ifndef USBDEVFS_DISCONNECT_CLAIM
2637   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2638   #endif
2639
2640   int main(void) { return 0; }'''))
2641
2642 have_keyring = get_option('keyring') \
2643   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2644   .require(cc.compiles('''
2645     #include <errno.h>
2646     #include <asm/unistd.h>
2647     #include <linux/keyctl.h>
2648     #include <sys/syscall.h>
2649     #include <unistd.h>
2650     int main(void) {
2651         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2652     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2653 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2654
2655 have_cpuid_h = cc.links('''
2656   #include <cpuid.h>
2657   int main(void) {
2658     unsigned a, b, c, d;
2659     unsigned max = __get_cpuid_max(0, 0);
2660
2661     if (max >= 1) {
2662         __cpuid(1, a, b, c, d);
2663     }
2664
2665     if (max >= 7) {
2666         __cpuid_count(7, 0, a, b, c, d);
2667     }
2668
2669     return 0;
2670   }''')
2671 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2672
2673 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2674   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2675   .require(cc.links('''
2676     #include <cpuid.h>
2677     #include <immintrin.h>
2678     static int __attribute__((target("avx2"))) bar(void *a) {
2679       __m256i x = *(__m256i *)a;
2680       return _mm256_testz_si256(x, x);
2681     }
2682     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2683   '''), error_message: 'AVX2 not available').allowed())
2684
2685 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2686   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2687   .require(cc.links('''
2688     #include <cpuid.h>
2689     #include <immintrin.h>
2690     static int __attribute__((target("avx512f"))) bar(void *a) {
2691       __m512i x = *(__m512i *)a;
2692       return _mm512_test_epi64_mask(x, x);
2693     }
2694     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2695   '''), error_message: 'AVX512F not available').allowed())
2696
2697 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2698   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2699   .require(cc.links('''
2700     #include <cpuid.h>
2701     #include <immintrin.h>
2702     static int __attribute__((target("avx512bw"))) bar(void *a) {
2703       __m512i *x = a;
2704       __m512i res= _mm512_abs_epi8(*x);
2705       return res[1];
2706     }
2707     int main(int argc, char *argv[]) { return bar(argv[0]); }
2708   '''), error_message: 'AVX512BW not available').allowed())
2709
2710 # For both AArch64 and AArch32, detect if builtins are available.
2711 config_host_data.set('CONFIG_ARM_AES_BUILTIN', cc.compiles('''
2712     #include <arm_neon.h>
2713     #ifndef __ARM_FEATURE_AES
2714     __attribute__((target("+crypto")))
2715     #endif
2716     void foo(uint8x16_t *p) { *p = vaesmcq_u8(*p); }
2717   '''))
2718
2719 have_pvrdma = get_option('pvrdma') \
2720   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2721   .require(cc.compiles(gnu_source_prefix + '''
2722     #include <sys/mman.h>
2723     int main(void)
2724     {
2725       char buf = 0;
2726       void *addr = &buf;
2727       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2728
2729       return 0;
2730     }'''), error_message: 'PVRDMA requires mremap').allowed()
2731
2732 if have_pvrdma
2733   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2734     #include <infiniband/verbs.h>
2735     int main(void)
2736     {
2737       struct ibv_mr *mr;
2738       struct ibv_pd *pd = NULL;
2739       size_t length = 10;
2740       uint64_t iova = 0;
2741       int access = 0;
2742       void *addr = NULL;
2743
2744       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2745       ibv_dereg_mr(mr);
2746       return 0;
2747     }'''))
2748 endif
2749
2750 if get_option('membarrier').disabled()
2751   have_membarrier = false
2752 elif targetos == 'windows'
2753   have_membarrier = true
2754 elif targetos == 'linux'
2755   have_membarrier = cc.compiles('''
2756     #include <linux/membarrier.h>
2757     #include <sys/syscall.h>
2758     #include <unistd.h>
2759     #include <stdlib.h>
2760     int main(void) {
2761         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2762         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2763         exit(0);
2764     }''')
2765 endif
2766 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2767   .require(have_membarrier, error_message: 'membarrier system call not available') \
2768   .allowed())
2769
2770 have_afalg = get_option('crypto_afalg') \
2771   .require(cc.compiles(gnu_source_prefix + '''
2772     #include <errno.h>
2773     #include <sys/types.h>
2774     #include <sys/socket.h>
2775     #include <linux/if_alg.h>
2776     int main(void) {
2777       int sock;
2778       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2779       return sock;
2780     }
2781   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2782 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2783
2784 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2785   'linux/vm_sockets.h', 'AF_VSOCK',
2786   prefix: '#include <sys/socket.h>',
2787 ))
2788
2789 have_vss = false
2790 have_vss_sdk = false # old xp/2003 SDK
2791 if targetos == 'windows' and 'cpp' in all_languages
2792   have_vss = cxx.compiles('''
2793     #define __MIDL_user_allocate_free_DEFINED__
2794     #include <vss.h>
2795     int main(void) { return VSS_CTX_BACKUP; }''')
2796   have_vss_sdk = cxx.has_header('vscoordint.h')
2797 endif
2798 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2799
2800 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2801 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2802 if targetos == 'windows'
2803   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2804     #include <stdio.h>
2805     int main(void) {
2806       _lock_file(NULL);
2807       _unlock_file(NULL);
2808       return 0;
2809     }''', name: '_lock_file and _unlock_file'))
2810 endif
2811
2812 if targetos == 'windows'
2813   mingw_has_setjmp_longjmp = cc.links('''
2814     #include <setjmp.h>
2815     int main(void) {
2816       /*
2817        * These functions are not available in setjmp header, but may be
2818        * available at link time, from libmingwex.a.
2819        */
2820       extern int __mingw_setjmp(jmp_buf);
2821       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2822       jmp_buf env;
2823       __mingw_setjmp(env);
2824       __mingw_longjmp(env, 0);
2825     }
2826   ''', name: 'mingw setjmp and longjmp')
2827
2828   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2829     error('mingw must provide setjmp/longjmp for windows-arm64')
2830   endif
2831 endif
2832
2833 ########################
2834 # Target configuration #
2835 ########################
2836
2837 minikconf = find_program('scripts/minikconf.py')
2838 config_targetos = {
2839   (targetos == 'windows' ? 'CONFIG_WIN32' : 'CONFIG_POSIX'): 'y'
2840 }
2841 if targetos == 'darwin'
2842   config_targetos += {'CONFIG_DARWIN': 'y'}
2843 elif targetos == 'linux'
2844   config_targetos += {'CONFIG_LINUX': 'y'}
2845 endif
2846 if targetos in bsd_oses
2847   config_targetos += {'CONFIG_BSD': 'y'}
2848 endif
2849
2850 config_all = {}
2851 config_all_devices = {}
2852 config_all_disas = {}
2853 config_devices_mak_list = []
2854 config_devices_h = {}
2855 config_target_h = {}
2856 config_target_mak = {}
2857
2858 disassemblers = {
2859   'alpha' : ['CONFIG_ALPHA_DIS'],
2860   'avr' : ['CONFIG_AVR_DIS'],
2861   'cris' : ['CONFIG_CRIS_DIS'],
2862   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2863   'hppa' : ['CONFIG_HPPA_DIS'],
2864   'i386' : ['CONFIG_I386_DIS'],
2865   'x86_64' : ['CONFIG_I386_DIS'],
2866   'm68k' : ['CONFIG_M68K_DIS'],
2867   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2868   'mips' : ['CONFIG_MIPS_DIS'],
2869   'nios2' : ['CONFIG_NIOS2_DIS'],
2870   'or1k' : ['CONFIG_OPENRISC_DIS'],
2871   'ppc' : ['CONFIG_PPC_DIS'],
2872   'riscv' : ['CONFIG_RISCV_DIS'],
2873   'rx' : ['CONFIG_RX_DIS'],
2874   's390' : ['CONFIG_S390_DIS'],
2875   'sh4' : ['CONFIG_SH4_DIS'],
2876   'sparc' : ['CONFIG_SPARC_DIS'],
2877   'xtensa' : ['CONFIG_XTENSA_DIS'],
2878   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2879 }
2880
2881 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2882 host_kconfig = \
2883   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2884   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2885   (pixman.found() ? ['CONFIG_PIXMAN=y'] : []) + \
2886   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2887   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2888   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2889   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2890   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2891   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2892   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2893   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2894   (targetos == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
2895   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2896   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2897   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : []) + \
2898   (hv_balloon ? ['CONFIG_HV_BALLOON_POSSIBLE=y'] : [])
2899
2900 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2901
2902 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2903 actual_target_dirs = []
2904 fdt_required = []
2905 foreach target : target_dirs
2906   config_target = { 'TARGET_NAME': target.split('-')[0] }
2907   if target.endswith('linux-user')
2908     if targetos != 'linux'
2909       if default_targets
2910         continue
2911       endif
2912       error('Target @0@ is only available on a Linux host'.format(target))
2913     endif
2914     config_target += { 'CONFIG_LINUX_USER': 'y' }
2915   elif target.endswith('bsd-user')
2916     if targetos not in bsd_oses
2917       if default_targets
2918         continue
2919       endif
2920       error('Target @0@ is only available on a BSD host'.format(target))
2921     endif
2922     config_target += { 'CONFIG_BSD_USER': 'y' }
2923   elif target.endswith('softmmu')
2924     config_target += { 'CONFIG_SYSTEM_ONLY': 'y' }
2925     config_target += { 'CONFIG_SOFTMMU': 'y' }
2926   endif
2927   if target.endswith('-user')
2928     config_target += {
2929       'CONFIG_USER_ONLY': 'y',
2930       'CONFIG_QEMU_INTERP_PREFIX':
2931         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2932     }
2933   endif
2934
2935   accel_kconfig = []
2936   foreach sym: accelerators
2937     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2938       config_target += { sym: 'y' }
2939       config_all += { sym: 'y' }
2940       if target in modular_tcg
2941         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2942       else
2943         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2944       endif
2945       accel_kconfig += [ sym + '=y' ]
2946     endif
2947   endforeach
2948   if accel_kconfig.length() == 0
2949     if default_targets
2950       continue
2951     endif
2952     error('No accelerator available for target @0@'.format(target))
2953   endif
2954
2955   actual_target_dirs += target
2956   config_target += keyval.load('configs/targets' / target + '.mak')
2957   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2958
2959   if 'TARGET_NEED_FDT' in config_target
2960     fdt_required += target
2961   endif
2962
2963   # Add default keys
2964   if 'TARGET_BASE_ARCH' not in config_target
2965     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2966   endif
2967   if 'TARGET_ABI_DIR' not in config_target
2968     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2969   endif
2970   if 'TARGET_BIG_ENDIAN' not in config_target
2971     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2972   endif
2973
2974   foreach k, v: disassemblers
2975     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2976       foreach sym: v
2977         config_target += { sym: 'y' }
2978         config_all_disas += { sym: 'y' }
2979       endforeach
2980     endif
2981   endforeach
2982
2983   config_target_data = configuration_data()
2984   foreach k, v: config_target
2985     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2986       # do nothing
2987     elif ignored.contains(k)
2988       # do nothing
2989     elif k == 'TARGET_BASE_ARCH'
2990       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2991       # not used to select files from sourcesets.
2992       config_target_data.set('TARGET_' + v.to_upper(), 1)
2993     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2994       config_target_data.set_quoted(k, v)
2995     elif v == 'y'
2996       config_target_data.set(k, 1)
2997     elif v == 'n'
2998       config_target_data.set(k, 0)
2999     else
3000       config_target_data.set(k, v)
3001     endif
3002   endforeach
3003   config_target_data.set('QEMU_ARCH',
3004                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
3005   config_target_h += {target: configure_file(output: target + '-config-target.h',
3006                                                configuration: config_target_data)}
3007
3008   if target.endswith('-softmmu')
3009     config_input = meson.get_external_property(target, 'default')
3010     config_devices_mak = target + '-config-devices.mak'
3011     config_devices_mak = configure_file(
3012       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
3013       output: config_devices_mak,
3014       depfile: config_devices_mak + '.d',
3015       capture: true,
3016       command: [minikconf,
3017                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
3018                 config_devices_mak, '@DEPFILE@', '@INPUT@',
3019                 host_kconfig, accel_kconfig,
3020                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
3021
3022     config_devices_data = configuration_data()
3023     config_devices = keyval.load(config_devices_mak)
3024     foreach k, v: config_devices
3025       config_devices_data.set(k, 1)
3026     endforeach
3027     config_devices_mak_list += config_devices_mak
3028     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
3029                                                 configuration: config_devices_data)}
3030     config_target += config_devices
3031     config_all_devices += config_devices
3032   endif
3033   config_target_mak += {target: config_target}
3034 endforeach
3035 target_dirs = actual_target_dirs
3036
3037 # This configuration is used to build files that are shared by
3038 # multiple binaries, and then extracted out of the "common"
3039 # static_library target.
3040 #
3041 # We do not use all_sources()/all_dependencies(), because it would
3042 # build literally all source files, including devices only used by
3043 # targets that are not built for this compilation.  The CONFIG_ALL
3044 # pseudo symbol replaces it.
3045
3046 config_all += config_all_devices
3047 config_all += config_targetos
3048 config_all += config_all_disas
3049 config_all += {
3050   'CONFIG_XEN': xen.found(),
3051   'CONFIG_SYSTEM_ONLY': have_system,
3052   'CONFIG_USER_ONLY': have_user,
3053   'CONFIG_ALL': true,
3054 }
3055
3056 target_configs_h = []
3057 foreach target: target_dirs
3058   target_configs_h += config_target_h[target]
3059   target_configs_h += config_devices_h.get(target, [])
3060 endforeach
3061 genh += custom_target('config-poison.h',
3062                       input: [target_configs_h],
3063                       output: 'config-poison.h',
3064                       capture: true,
3065                       command: [find_program('scripts/make-config-poison.sh'),
3066                                 target_configs_h])
3067
3068 ##############
3069 # Submodules #
3070 ##############
3071
3072 capstone = not_found
3073 if not get_option('capstone').auto() or have_system or have_user
3074   capstone = dependency('capstone', version: '>=3.0.5',
3075                         method: 'pkg-config',
3076                         required: get_option('capstone'))
3077
3078   # Some versions of capstone have broken pkg-config file
3079   # that reports a wrong -I path, causing the #include to
3080   # fail later. If the system has such a broken version
3081   # do not use it.
3082   if capstone.found() and not cc.compiles('#include <capstone.h>',
3083                                           dependencies: [capstone])
3084     capstone = not_found
3085     if get_option('capstone').enabled()
3086       error('capstone requested, but it does not appear to work')
3087     endif
3088   endif
3089 endif
3090
3091 libvfio_user_dep = not_found
3092 if have_system and vfio_user_server_allowed
3093   libvfio_user_proj = subproject('libvfio-user', required: true)
3094   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3095 endif
3096
3097 fdt = not_found
3098 fdt_opt = get_option('fdt')
3099 if fdt_required.length() > 0 or fdt_opt == 'enabled'
3100   if fdt_opt == 'disabled'
3101     error('fdt disabled but required by targets ' + ', '.join(fdt_required))
3102   endif
3103
3104   if fdt_opt in ['enabled', 'auto', 'system']
3105     if get_option('wrap_mode') == 'nodownload'
3106       fdt_opt = 'system'
3107     endif
3108     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3109     if fdt.found() and cc.links('''
3110        #include <libfdt.h>
3111        #include <libfdt_env.h>
3112        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3113          dependencies: fdt)
3114       fdt_opt = 'system'
3115     elif fdt_opt == 'system'
3116        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3117     else
3118       fdt_opt = 'internal'
3119       fdt = not_found
3120     endif
3121   endif
3122   if not fdt.found()
3123     assert(fdt_opt == 'internal')
3124     libfdt_proj = subproject('dtc', required: true,
3125                              default_options: ['tools=false',  'yaml=disabled',
3126                                                'python=disabled', 'default_library=static'])
3127     fdt = libfdt_proj.get_variable('libfdt_dep')
3128   endif
3129 else
3130   fdt_opt = 'disabled'
3131 endif
3132
3133 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3134 config_host_data.set('CONFIG_FDT', fdt.found())
3135 config_host_data.set('CONFIG_SLIRP', slirp.found())
3136
3137 #####################
3138 # Generated sources #
3139 #####################
3140
3141 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3142
3143 hxtool = find_program('scripts/hxtool')
3144 shaderinclude = find_program('scripts/shaderinclude.py')
3145 qapi_gen = find_program('scripts/qapi-gen.py')
3146 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3147                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3148                      meson.current_source_dir() / 'scripts/qapi/common.py',
3149                      meson.current_source_dir() / 'scripts/qapi/error.py',
3150                      meson.current_source_dir() / 'scripts/qapi/events.py',
3151                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3152                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3153                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3154                      meson.current_source_dir() / 'scripts/qapi/main.py',
3155                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3156                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3157                      meson.current_source_dir() / 'scripts/qapi/source.py',
3158                      meson.current_source_dir() / 'scripts/qapi/types.py',
3159                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3160                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3161 ]
3162
3163 tracetool = [
3164   python, files('scripts/tracetool.py'),
3165    '--backend=' + ','.join(get_option('trace_backends'))
3166 ]
3167 tracetool_depends = files(
3168   'scripts/tracetool/backend/log.py',
3169   'scripts/tracetool/backend/__init__.py',
3170   'scripts/tracetool/backend/dtrace.py',
3171   'scripts/tracetool/backend/ftrace.py',
3172   'scripts/tracetool/backend/simple.py',
3173   'scripts/tracetool/backend/syslog.py',
3174   'scripts/tracetool/backend/ust.py',
3175   'scripts/tracetool/format/ust_events_c.py',
3176   'scripts/tracetool/format/ust_events_h.py',
3177   'scripts/tracetool/format/__init__.py',
3178   'scripts/tracetool/format/d.py',
3179   'scripts/tracetool/format/simpletrace_stap.py',
3180   'scripts/tracetool/format/c.py',
3181   'scripts/tracetool/format/h.py',
3182   'scripts/tracetool/format/log_stap.py',
3183   'scripts/tracetool/format/stap.py',
3184   'scripts/tracetool/__init__.py',
3185   'scripts/tracetool/vcpu.py'
3186 )
3187
3188 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3189                     meson.current_source_dir(),
3190                     get_option('pkgversion'), meson.project_version()]
3191 qemu_version = custom_target('qemu-version.h',
3192                              output: 'qemu-version.h',
3193                              command: qemu_version_cmd,
3194                              capture: true,
3195                              build_by_default: true,
3196                              build_always_stale: true)
3197 genh += qemu_version
3198
3199 hxdep = []
3200 hx_headers = [
3201   ['qemu-options.hx', 'qemu-options.def'],
3202   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3203 ]
3204 if have_system
3205   hx_headers += [
3206     ['hmp-commands.hx', 'hmp-commands.h'],
3207     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3208   ]
3209 endif
3210 foreach d : hx_headers
3211   hxdep += custom_target(d[1],
3212                 input: files(d[0]),
3213                 output: d[1],
3214                 capture: true,
3215                 command: [hxtool, '-h', '@INPUT0@'])
3216 endforeach
3217 genh += hxdep
3218
3219 ###################
3220 # Collect sources #
3221 ###################
3222
3223 authz_ss = ss.source_set()
3224 blockdev_ss = ss.source_set()
3225 block_ss = ss.source_set()
3226 chardev_ss = ss.source_set()
3227 common_ss = ss.source_set()
3228 crypto_ss = ss.source_set()
3229 hwcore_ss = ss.source_set()
3230 io_ss = ss.source_set()
3231 qmp_ss = ss.source_set()
3232 qom_ss = ss.source_set()
3233 system_ss = ss.source_set()
3234 specific_fuzz_ss = ss.source_set()
3235 specific_ss = ss.source_set()
3236 stub_ss = ss.source_set()
3237 trace_ss = ss.source_set()
3238 user_ss = ss.source_set()
3239 util_ss = ss.source_set()
3240
3241 # accel modules
3242 qtest_module_ss = ss.source_set()
3243 tcg_module_ss = ss.source_set()
3244
3245 modules = {}
3246 target_modules = {}
3247 hw_arch = {}
3248 target_arch = {}
3249 target_system_arch = {}
3250 target_user_arch = {}
3251
3252 ###############
3253 # Trace files #
3254 ###############
3255
3256 # TODO: add each directory to the subdirs from its own meson.build, once
3257 # we have those
3258 trace_events_subdirs = [
3259   'crypto',
3260   'qapi',
3261   'qom',
3262   'monitor',
3263   'util',
3264   'gdbstub',
3265 ]
3266 if have_linux_user
3267   trace_events_subdirs += [ 'linux-user' ]
3268 endif
3269 if have_bsd_user
3270   trace_events_subdirs += [ 'bsd-user' ]
3271 endif
3272 if have_block
3273   trace_events_subdirs += [
3274     'authz',
3275     'block',
3276     'io',
3277     'nbd',
3278     'scsi',
3279   ]
3280 endif
3281 if have_system
3282   trace_events_subdirs += [
3283     'accel/kvm',
3284     'audio',
3285     'backends',
3286     'backends/tpm',
3287     'chardev',
3288     'ebpf',
3289     'hw/9pfs',
3290     'hw/acpi',
3291     'hw/adc',
3292     'hw/alpha',
3293     'hw/arm',
3294     'hw/audio',
3295     'hw/block',
3296     'hw/block/dataplane',
3297     'hw/char',
3298     'hw/display',
3299     'hw/dma',
3300     'hw/hyperv',
3301     'hw/i2c',
3302     'hw/i386',
3303     'hw/i386/xen',
3304     'hw/i386/kvm',
3305     'hw/ide',
3306     'hw/input',
3307     'hw/intc',
3308     'hw/isa',
3309     'hw/mem',
3310     'hw/mips',
3311     'hw/misc',
3312     'hw/misc/macio',
3313     'hw/net',
3314     'hw/net/can',
3315     'hw/nubus',
3316     'hw/nvme',
3317     'hw/nvram',
3318     'hw/pci',
3319     'hw/pci-host',
3320     'hw/ppc',
3321     'hw/rdma',
3322     'hw/rdma/vmw',
3323     'hw/rtc',
3324     'hw/s390x',
3325     'hw/scsi',
3326     'hw/sd',
3327     'hw/sh4',
3328     'hw/sparc',
3329     'hw/sparc64',
3330     'hw/ssi',
3331     'hw/timer',
3332     'hw/tpm',
3333     'hw/ufs',
3334     'hw/usb',
3335     'hw/vfio',
3336     'hw/virtio',
3337     'hw/watchdog',
3338     'hw/xen',
3339     'hw/gpio',
3340     'migration',
3341     'net',
3342     'system',
3343     'ui',
3344     'hw/remote',
3345   ]
3346 endif
3347 if have_system or have_user
3348   trace_events_subdirs += [
3349     'accel/tcg',
3350     'hw/core',
3351     'target/arm',
3352     'target/arm/hvf',
3353     'target/hppa',
3354     'target/i386',
3355     'target/i386/kvm',
3356     'target/mips/tcg',
3357     'target/nios2',
3358     'target/ppc',
3359     'target/riscv',
3360     'target/s390x',
3361     'target/s390x/kvm',
3362     'target/sparc',
3363   ]
3364 endif
3365
3366 vhost_user = not_found
3367 if targetos == 'linux' and have_vhost_user
3368   libvhost_user = subproject('libvhost-user')
3369   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3370 endif
3371
3372 libvduse = not_found
3373 if have_libvduse
3374   libvduse_proj = subproject('libvduse')
3375   libvduse = libvduse_proj.get_variable('libvduse_dep')
3376 endif
3377
3378 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3379 # that is filled in by qapi/.
3380 subdir('qapi')
3381 subdir('qobject')
3382 subdir('stubs')
3383 subdir('trace')
3384 subdir('util')
3385 subdir('qom')
3386 subdir('authz')
3387 subdir('crypto')
3388 subdir('ui')
3389 subdir('hw')
3390 subdir('gdbstub')
3391
3392 if enable_modules
3393   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3394   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3395 endif
3396
3397 qom_ss = qom_ss.apply(config_targetos, strict: false)
3398 libqom = static_library('qom', qom_ss.sources() + genh,
3399                         dependencies: [qom_ss.dependencies()],
3400                         name_suffix: 'fa',
3401                         build_by_default: false)
3402 qom = declare_dependency(link_whole: libqom)
3403
3404 event_loop_base = files('event-loop-base.c')
3405 event_loop_base = static_library('event-loop-base',
3406                                  sources: event_loop_base + genh,
3407                                  name_suffix: 'fa',
3408                                  build_by_default: false)
3409 event_loop_base = declare_dependency(link_whole: event_loop_base,
3410                                      dependencies: [qom])
3411
3412 stub_ss = stub_ss.apply(config_all, strict: false)
3413
3414 util_ss.add_all(trace_ss)
3415 util_ss = util_ss.apply(config_all, strict: false)
3416 libqemuutil = static_library('qemuutil',
3417                              build_by_default: false,
3418                              sources: util_ss.sources() + stub_ss.sources() + genh,
3419                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3420 qemuutil = declare_dependency(link_with: libqemuutil,
3421                               sources: genh + version_res,
3422                               dependencies: [event_loop_base])
3423
3424 if have_system or have_user
3425   decodetree = generator(find_program('scripts/decodetree.py'),
3426                          output: 'decode-@BASENAME@.c.inc',
3427                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3428   subdir('libdecnumber')
3429   subdir('target')
3430 endif
3431
3432 subdir('audio')
3433 subdir('io')
3434 subdir('chardev')
3435 subdir('fsdev')
3436 subdir('dump')
3437
3438 if have_block
3439   block_ss.add(files(
3440     'block.c',
3441     'blockjob.c',
3442     'job.c',
3443     'qemu-io-cmds.c',
3444   ))
3445   if config_host_data.get('CONFIG_REPLICATION')
3446     block_ss.add(files('replication.c'))
3447   endif
3448
3449   subdir('nbd')
3450   subdir('scsi')
3451   subdir('block')
3452
3453   blockdev_ss.add(files(
3454     'blockdev.c',
3455     'blockdev-nbd.c',
3456     'iothread.c',
3457     'job-qmp.c',
3458   ), gnutls)
3459
3460   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3461   # os-win32.c does not
3462   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3463   system_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3464 endif
3465
3466 common_ss.add(files('cpu-common.c'))
3467 specific_ss.add(files('cpu-target.c'))
3468
3469 subdir('system')
3470
3471 # Work around a gcc bug/misfeature wherein constant propagation looks
3472 # through an alias:
3473 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3474 # to guess that a const variable is always zero.  Without lto, this is
3475 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3476 # without lto, not even the alias is required -- we simply use different
3477 # declarations in different compilation units.
3478 pagevary = files('page-vary-common.c')
3479 if get_option('b_lto')
3480   pagevary_flags = ['-fno-lto']
3481   if get_option('cfi')
3482     pagevary_flags += '-fno-sanitize=cfi-icall'
3483   endif
3484   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3485                             c_args: pagevary_flags)
3486   pagevary = declare_dependency(link_with: pagevary)
3487 endif
3488 common_ss.add(pagevary)
3489 specific_ss.add(files('page-vary-target.c'))
3490
3491 subdir('backends')
3492 subdir('disas')
3493 subdir('migration')
3494 subdir('monitor')
3495 subdir('net')
3496 subdir('replay')
3497 subdir('semihosting')
3498 subdir('stats')
3499 subdir('tcg')
3500 subdir('fpu')
3501 subdir('accel')
3502 subdir('plugins')
3503 subdir('ebpf')
3504
3505 common_user_inc = []
3506
3507 subdir('common-user')
3508 subdir('bsd-user')
3509 subdir('linux-user')
3510
3511 # needed for fuzzing binaries
3512 subdir('tests/qtest/libqos')
3513 subdir('tests/qtest/fuzz')
3514
3515 # accel modules
3516 tcg_real_module_ss = ss.source_set()
3517 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3518 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3519 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3520                                 'tcg': tcg_real_module_ss }}
3521
3522 ########################
3523 # Library dependencies #
3524 ########################
3525
3526 modinfo_collect = find_program('scripts/modinfo-collect.py')
3527 modinfo_generate = find_program('scripts/modinfo-generate.py')
3528 modinfo_files = []
3529
3530 block_mods = []
3531 system_mods = []
3532 foreach d, list : modules
3533   if not (d == 'block' ? have_block : have_system)
3534     continue
3535   endif
3536
3537   foreach m, module_ss : list
3538     if enable_modules
3539       module_ss = module_ss.apply(config_all, strict: false)
3540       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3541                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3542       if d == 'block'
3543         block_mods += sl
3544       else
3545         system_mods += sl
3546       endif
3547       if module_ss.sources() != []
3548         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3549         # input. Sources can be used multiple times but objects are
3550         # unique when it comes to lookup in compile_commands.json.
3551         # Depnds on a mesion version with
3552         # https://github.com/mesonbuild/meson/pull/8900
3553         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3554                                        output: d + '-' + m + '.modinfo',
3555                                        input: module_ss.sources() + genh,
3556                                        capture: true,
3557                                        command: [modinfo_collect, module_ss.sources()])
3558       endif
3559     else
3560       if d == 'block'
3561         block_ss.add_all(module_ss)
3562       else
3563         system_ss.add_all(module_ss)
3564       endif
3565     endif
3566   endforeach
3567 endforeach
3568
3569 foreach d, list : target_modules
3570   foreach m, module_ss : list
3571     if enable_modules
3572       foreach target : target_dirs
3573         if target.endswith('-softmmu')
3574           config_target = config_target_mak[target]
3575           config_target += config_targetos
3576           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3577           c_args = ['-DNEED_CPU_H',
3578                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3579                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3580           target_module_ss = module_ss.apply(config_target, strict: false)
3581           if target_module_ss.sources() != []
3582             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3583             sl = static_library(module_name,
3584                                 [genh, target_module_ss.sources()],
3585                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3586                                 include_directories: target_inc,
3587                                 c_args: c_args,
3588                                 pic: true)
3589             system_mods += sl
3590             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3591             modinfo_files += custom_target(module_name + '.modinfo',
3592                                            output: module_name + '.modinfo',
3593                                            input: target_module_ss.sources() + genh,
3594                                            capture: true,
3595                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3596           endif
3597         endif
3598       endforeach
3599     else
3600       specific_ss.add_all(module_ss)
3601     endif
3602   endforeach
3603 endforeach
3604
3605 if enable_modules
3606   foreach target : target_dirs
3607     if target.endswith('-softmmu')
3608       config_target = config_target_mak[target]
3609       config_devices_mak = target + '-config-devices.mak'
3610       modinfo_src = custom_target('modinfo-' + target + '.c',
3611                                   output: 'modinfo-' + target + '.c',
3612                                   input: modinfo_files,
3613                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3614                                   capture: true)
3615
3616       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3617       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3618
3619       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3620       hw_arch[arch].add(modinfo_dep)
3621     endif
3622   endforeach
3623 endif
3624
3625 nm = find_program('nm')
3626 undefsym = find_program('scripts/undefsym.py')
3627 block_syms = custom_target('block.syms', output: 'block.syms',
3628                              input: [libqemuutil, block_mods],
3629                              capture: true,
3630                              command: [undefsym, nm, '@INPUT@'])
3631 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3632                              input: [libqemuutil, system_mods],
3633                              capture: true,
3634                              command: [undefsym, nm, '@INPUT@'])
3635
3636 authz_ss = authz_ss.apply(config_targetos, strict: false)
3637 libauthz = static_library('authz', authz_ss.sources() + genh,
3638                           dependencies: [authz_ss.dependencies()],
3639                           name_suffix: 'fa',
3640                           build_by_default: false)
3641
3642 authz = declare_dependency(link_whole: libauthz,
3643                            dependencies: qom)
3644
3645 crypto_ss = crypto_ss.apply(config_targetos, strict: false)
3646 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3647                            dependencies: [crypto_ss.dependencies()],
3648                            name_suffix: 'fa',
3649                            build_by_default: false)
3650
3651 crypto = declare_dependency(link_whole: libcrypto,
3652                             dependencies: [authz, qom])
3653
3654 io_ss = io_ss.apply(config_targetos, strict: false)
3655 libio = static_library('io', io_ss.sources() + genh,
3656                        dependencies: [io_ss.dependencies()],
3657                        link_with: libqemuutil,
3658                        name_suffix: 'fa',
3659                        build_by_default: false)
3660
3661 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3662
3663 libmigration = static_library('migration', sources: migration_files + genh,
3664                               name_suffix: 'fa',
3665                               build_by_default: false)
3666 migration = declare_dependency(link_with: libmigration,
3667                                dependencies: [zlib, qom, io])
3668 system_ss.add(migration)
3669
3670 block_ss = block_ss.apply(config_targetos, strict: false)
3671 libblock = static_library('block', block_ss.sources() + genh,
3672                           dependencies: block_ss.dependencies(),
3673                           link_depends: block_syms,
3674                           name_suffix: 'fa',
3675                           build_by_default: false)
3676
3677 block = declare_dependency(link_whole: [libblock],
3678                            link_args: '@block.syms',
3679                            dependencies: [crypto, io])
3680
3681 blockdev_ss = blockdev_ss.apply(config_targetos, strict: false)
3682 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3683                              dependencies: blockdev_ss.dependencies(),
3684                              name_suffix: 'fa',
3685                              build_by_default: false)
3686
3687 blockdev = declare_dependency(link_whole: [libblockdev],
3688                               dependencies: [block, event_loop_base])
3689
3690 qmp_ss = qmp_ss.apply(config_targetos, strict: false)
3691 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3692                         dependencies: qmp_ss.dependencies(),
3693                         name_suffix: 'fa',
3694                         build_by_default: false)
3695
3696 qmp = declare_dependency(link_whole: [libqmp])
3697
3698 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3699                             name_suffix: 'fa',
3700                             dependencies: chardev_ss.dependencies(),
3701                             build_by_default: false)
3702
3703 chardev = declare_dependency(link_whole: libchardev)
3704
3705 hwcore_ss = hwcore_ss.apply(config_targetos, strict: false)
3706 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3707                            name_suffix: 'fa',
3708                            build_by_default: false)
3709 hwcore = declare_dependency(link_whole: libhwcore)
3710 common_ss.add(hwcore)
3711
3712 ###########
3713 # Targets #
3714 ###########
3715
3716 emulator_modules = []
3717 foreach m : block_mods + system_mods
3718   emulator_modules += shared_module(m.name(),
3719                 build_by_default: true,
3720                 name_prefix: '',
3721                 link_whole: m,
3722                 install: true,
3723                 install_dir: qemu_moddir)
3724 endforeach
3725 if emulator_modules.length() > 0
3726   alias_target('modules', emulator_modules)
3727 endif
3728
3729 system_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3730 common_ss.add(qom, qemuutil)
3731
3732 common_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: [system_ss])
3733 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3734
3735 common_all = common_ss.apply(config_all, strict: false)
3736 common_all = static_library('common',
3737                             build_by_default: false,
3738                             sources: common_all.sources() + genh,
3739                             include_directories: common_user_inc,
3740                             implicit_include_directories: false,
3741                             dependencies: common_all.dependencies(),
3742                             name_suffix: 'fa')
3743
3744 feature_to_c = find_program('scripts/feature_to_c.py')
3745
3746 if targetos == 'darwin'
3747   entitlement = find_program('scripts/entitlement.sh')
3748 endif
3749
3750 emulators = {}
3751 foreach target : target_dirs
3752   config_target = config_target_mak[target]
3753   target_name = config_target['TARGET_NAME']
3754   target_base_arch = config_target['TARGET_BASE_ARCH']
3755   arch_srcs = [config_target_h[target]]
3756   arch_deps = []
3757   c_args = ['-DNEED_CPU_H',
3758             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3759             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3760   link_args = emulator_link_args
3761
3762   config_target += config_targetos
3763   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3764   if targetos == 'linux'
3765     target_inc += include_directories('linux-headers', is_system: true)
3766   endif
3767   if target.endswith('-softmmu')
3768     target_type='system'
3769     t = target_system_arch[target_base_arch].apply(config_target, strict: false)
3770     arch_srcs += t.sources()
3771     arch_deps += t.dependencies()
3772
3773     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3774     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3775     arch_srcs += hw.sources()
3776     arch_deps += hw.dependencies()
3777
3778     arch_srcs += config_devices_h[target]
3779     link_args += ['@block.syms', '@qemu.syms']
3780   else
3781     abi = config_target['TARGET_ABI_DIR']
3782     target_type='user'
3783     target_inc += common_user_inc
3784     if target_base_arch in target_user_arch
3785       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3786       arch_srcs += t.sources()
3787       arch_deps += t.dependencies()
3788     endif
3789     if 'CONFIG_LINUX_USER' in config_target
3790       base_dir = 'linux-user'
3791     endif
3792     if 'CONFIG_BSD_USER' in config_target
3793       base_dir = 'bsd-user'
3794       target_inc += include_directories('bsd-user/' / targetos)
3795       target_inc += include_directories('bsd-user/host/' / host_arch)
3796       dir = base_dir / abi
3797       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3798     endif
3799     target_inc += include_directories(
3800       base_dir,
3801       base_dir / abi,
3802     )
3803     if 'CONFIG_LINUX_USER' in config_target
3804       dir = base_dir / abi
3805       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3806       if config_target.has_key('TARGET_SYSTBL_ABI')
3807         arch_srcs += \
3808           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3809                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3810       endif
3811     endif
3812   endif
3813
3814   if 'TARGET_XML_FILES' in config_target
3815     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3816                                 output: target + '-gdbstub-xml.c',
3817                                 input: files(config_target['TARGET_XML_FILES'].split()),
3818                                 command: [feature_to_c, '@INPUT@'],
3819                                 capture: true)
3820     arch_srcs += gdbstub_xml
3821   endif
3822
3823   t = target_arch[target_base_arch].apply(config_target, strict: false)
3824   arch_srcs += t.sources()
3825   arch_deps += t.dependencies()
3826
3827   target_common = common_ss.apply(config_target, strict: false)
3828   objects = common_all.extract_objects(target_common.sources())
3829   deps = target_common.dependencies()
3830
3831   target_specific = specific_ss.apply(config_target, strict: false)
3832   arch_srcs += target_specific.sources()
3833   arch_deps += target_specific.dependencies()
3834
3835   lib = static_library('qemu-' + target,
3836                  sources: arch_srcs + genh,
3837                  dependencies: arch_deps,
3838                  objects: objects,
3839                  include_directories: target_inc,
3840                  c_args: c_args,
3841                  build_by_default: false,
3842                  name_suffix: 'fa')
3843
3844   if target.endswith('-softmmu')
3845     execs = [{
3846       'name': 'qemu-system-' + target_name,
3847       'win_subsystem': 'console',
3848       'sources': files('system/main.c'),
3849       'dependencies': []
3850     }]
3851     if targetos == 'windows' and (sdl.found() or gtk.found())
3852       execs += [{
3853         'name': 'qemu-system-' + target_name + 'w',
3854         'win_subsystem': 'windows',
3855         'sources': files('system/main.c'),
3856         'dependencies': []
3857       }]
3858     endif
3859     if get_option('fuzzing')
3860       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3861       execs += [{
3862         'name': 'qemu-fuzz-' + target_name,
3863         'win_subsystem': 'console',
3864         'sources': specific_fuzz.sources(),
3865         'dependencies': specific_fuzz.dependencies(),
3866       }]
3867     endif
3868   else
3869     execs = [{
3870       'name': 'qemu-' + target_name,
3871       'win_subsystem': 'console',
3872       'sources': [],
3873       'dependencies': []
3874     }]
3875   endif
3876   foreach exe: execs
3877     exe_name = exe['name']
3878     if targetos == 'darwin'
3879       exe_name += '-unsigned'
3880     endif
3881
3882     emulator = executable(exe_name, exe['sources'],
3883                install: true,
3884                c_args: c_args,
3885                dependencies: arch_deps + deps + exe['dependencies'],
3886                objects: lib.extract_all_objects(recursive: true),
3887                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3888                link_args: link_args,
3889                win_subsystem: exe['win_subsystem'])
3890
3891     if targetos == 'darwin'
3892       icon = 'pc-bios/qemu.rsrc'
3893       build_input = [emulator, files(icon)]
3894       install_input = [
3895         get_option('bindir') / exe_name,
3896         meson.current_source_dir() / icon
3897       ]
3898       if 'CONFIG_HVF' in config_target
3899         entitlements = 'accel/hvf/entitlements.plist'
3900         build_input += files(entitlements)
3901         install_input += meson.current_source_dir() / entitlements
3902       endif
3903
3904       emulators += {exe['name'] : custom_target(exe['name'],
3905                    input: build_input,
3906                    output: exe['name'],
3907                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3908       }
3909
3910       meson.add_install_script(entitlement, '--install',
3911                                get_option('bindir') / exe['name'],
3912                                install_input)
3913     else
3914       emulators += {exe['name']: emulator}
3915     endif
3916
3917     if stap.found()
3918       foreach stp: [
3919         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3920         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3921         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3922         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3923       ]
3924         custom_target(exe['name'] + stp['ext'],
3925                       input: trace_events_all,
3926                       output: exe['name'] + stp['ext'],
3927                       install: stp['install'],
3928                       install_dir: get_option('datadir') / 'systemtap/tapset',
3929                       command: [
3930                         tracetool, '--group=all', '--format=' + stp['fmt'],
3931                         '--binary=' + stp['bin'],
3932                         '--target-name=' + target_name,
3933                         '--target-type=' + target_type,
3934                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3935                         '@INPUT@', '@OUTPUT@'
3936                       ],
3937                       depend_files: tracetool_depends)
3938       endforeach
3939     endif
3940   endforeach
3941 endforeach
3942
3943 # Other build targets
3944
3945 if get_option('plugins')
3946   install_headers('include/qemu/qemu-plugin.h')
3947 endif
3948
3949 subdir('qga')
3950
3951 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3952 # when we don't build tools or system
3953 if xkbcommon.found()
3954   # used for the update-keymaps target, so include rules even if !have_tools
3955   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3956                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3957 endif
3958
3959 if have_tools
3960   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3961              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3962   qemu_io = executable('qemu-io', files('qemu-io.c'),
3963              dependencies: [block, qemuutil], install: true)
3964   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3965                dependencies: [blockdev, qemuutil, gnutls, selinux],
3966                install: true)
3967
3968   subdir('storage-daemon')
3969   subdir('contrib/rdmacm-mux')
3970   subdir('contrib/elf2dmp')
3971
3972   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3973              dependencies: qemuutil,
3974              install: true)
3975
3976   if have_vhost_user
3977     subdir('contrib/vhost-user-blk')
3978     subdir('contrib/vhost-user-gpu')
3979     subdir('contrib/vhost-user-input')
3980     subdir('contrib/vhost-user-scsi')
3981   endif
3982
3983   if targetos == 'linux'
3984     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3985                dependencies: [qemuutil, libcap_ng],
3986                install: true,
3987                install_dir: get_option('libexecdir'))
3988
3989     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3990                dependencies: [authz, crypto, io, qom, qemuutil,
3991                               libcap_ng, mpathpersist],
3992                install: true)
3993   endif
3994
3995   if have_ivshmem
3996     subdir('contrib/ivshmem-client')
3997     subdir('contrib/ivshmem-server')
3998   endif
3999 endif
4000
4001 subdir('scripts')
4002 subdir('tools')
4003 subdir('pc-bios')
4004 subdir('docs')
4005 subdir('tests')
4006 if gtk.found()
4007   subdir('po')
4008 endif
4009
4010 if host_machine.system() == 'windows'
4011   nsis_cmd = [
4012     find_program('scripts/nsis.py'),
4013     '@OUTPUT@',
4014     get_option('prefix'),
4015     meson.current_source_dir(),
4016     glib_pc.get_variable('bindir'),
4017     host_machine.cpu(),
4018     '--',
4019     '-DDISPLAYVERSION=' + meson.project_version(),
4020   ]
4021   if build_docs
4022     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
4023   endif
4024   if gtk.found()
4025     nsis_cmd += '-DCONFIG_GTK=y'
4026   endif
4027
4028   nsis = custom_target('nsis',
4029                        output: 'qemu-setup-' + meson.project_version() + '.exe',
4030                        input: files('qemu.nsi'),
4031                        build_always_stale: true,
4032                        command: nsis_cmd + ['@INPUT@'])
4033   alias_target('installer', nsis)
4034 endif
4035
4036 #########################
4037 # Configuration summary #
4038 #########################
4039
4040 # Build environment
4041 summary_info = {}
4042 summary_info += {'Build directory':   meson.current_build_dir()}
4043 summary_info += {'Source path':       meson.current_source_dir()}
4044 summary_info += {'Download dependencies': get_option('wrap_mode') != 'nodownload'}
4045 summary(summary_info, bool_yn: true, section: 'Build environment')
4046
4047 # Directories
4048 summary_info += {'Install prefix':    get_option('prefix')}
4049 summary_info += {'BIOS directory':    qemu_datadir}
4050 pathsep = targetos == 'windows' ? ';' : ':'
4051 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
4052 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
4053 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
4054 summary_info += {'module directory':  qemu_moddir}
4055 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
4056 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
4057 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
4058 if targetos != 'windows'
4059   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
4060   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
4061 else
4062   summary_info += {'local state directory': 'queried at runtime'}
4063 endif
4064 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4065 summary(summary_info, bool_yn: true, section: 'Directories')
4066
4067 # Host binaries
4068 summary_info = {}
4069 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4070 summary_info += {'sphinx-build':      sphinx_build}
4071
4072 # FIXME: the [binaries] section of machine files, which can be probed
4073 # with find_program(), would be great for passing gdb and genisoimage
4074 # paths from configure to Meson.  However, there seems to be no way to
4075 # hide a program (for example if gdb is too old).
4076 if config_host.has_key('GDB')
4077   summary_info += {'gdb':             config_host['GDB']}
4078 endif
4079 summary_info += {'iasl':              iasl}
4080 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4081 if targetos == 'windows' and have_ga
4082   summary_info += {'wixl':            wixl}
4083 endif
4084 if slirp.found() and have_system
4085   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4086 endif
4087 summary(summary_info, bool_yn: true, section: 'Host binaries')
4088
4089 # Configurable features
4090 summary_info = {}
4091 summary_info += {'Documentation':     build_docs}
4092 summary_info += {'system-mode emulation': have_system}
4093 summary_info += {'user-mode emulation': have_user}
4094 summary_info += {'block layer':       have_block}
4095 summary_info += {'Install blobs':     get_option('install_blobs')}
4096 summary_info += {'module support':    enable_modules}
4097 if enable_modules
4098   summary_info += {'alternative module path': get_option('module_upgrades')}
4099 endif
4100 summary_info += {'fuzzing support':   get_option('fuzzing')}
4101 if have_system
4102   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4103 endif
4104 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4105 if 'simple' in get_option('trace_backends')
4106   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4107 endif
4108 summary_info += {'D-Bus display':     dbus_display}
4109 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4110 summary_info += {'Relocatable install': get_option('relocatable')}
4111 summary_info += {'vhost-kernel support': have_vhost_kernel}
4112 summary_info += {'vhost-net support': have_vhost_net}
4113 summary_info += {'vhost-user support': have_vhost_user}
4114 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4115 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4116 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4117 summary_info += {'build guest agent': have_ga}
4118 summary(summary_info, bool_yn: true, section: 'Configurable features')
4119
4120 # Compilation information
4121 summary_info = {}
4122 summary_info += {'host CPU':          cpu}
4123 summary_info += {'host endianness':   build_machine.endian()}
4124 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4125 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4126 if 'cpp' in all_languages
4127   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4128 else
4129   summary_info += {'C++ compiler':      false}
4130 endif
4131 if 'objc' in all_languages
4132   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4133 else
4134   summary_info += {'Objective-C compiler': false}
4135 endif
4136 option_cflags = (get_option('debug') ? ['-g'] : [])
4137 if get_option('optimization') != 'plain'
4138   option_cflags += ['-O' + get_option('optimization')]
4139 endif
4140 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4141 if 'cpp' in all_languages
4142   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4143 endif
4144 if 'objc' in all_languages
4145   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4146 endif
4147 link_args = get_option('c_link_args')
4148 if link_args.length() > 0
4149   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4150 endif
4151 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4152 if 'cpp' in all_languages
4153   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4154 endif
4155 if 'objc' in all_languages
4156   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4157 endif
4158 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4159 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4160 summary_info += {'PIE':               get_option('b_pie')}
4161 summary_info += {'static build':      get_option('prefer_static')}
4162 summary_info += {'malloc trim support': has_malloc_trim}
4163 summary_info += {'membarrier':        have_membarrier}
4164 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4165 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4166 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4167 summary_info += {'memory allocator':  get_option('malloc')}
4168 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4169 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4170 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4171 summary_info += {'gcov':              get_option('b_coverage')}
4172 summary_info += {'thread sanitizer':  get_option('tsan')}
4173 summary_info += {'CFI support':       get_option('cfi')}
4174 if get_option('cfi')
4175   summary_info += {'CFI debug support': get_option('cfi_debug')}
4176 endif
4177 summary_info += {'strip binaries':    get_option('strip')}
4178 summary_info += {'sparse':            sparse}
4179 summary_info += {'mingw32 support':   targetos == 'windows'}
4180 summary(summary_info, bool_yn: true, section: 'Compilation')
4181
4182 # snarf the cross-compilation information for tests
4183 summary_info = {}
4184 have_cross = false
4185 foreach target: target_dirs
4186   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4187   if fs.exists(tcg_mak)
4188     config_cross_tcg = keyval.load(tcg_mak)
4189     if 'CC' in config_cross_tcg
4190       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4191       have_cross = true
4192     endif
4193   endif
4194 endforeach
4195 if have_cross
4196   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4197 endif
4198
4199 # Targets and accelerators
4200 summary_info = {}
4201 if have_system
4202   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4203   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4204   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4205   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4206   summary_info += {'Xen support':       xen.found()}
4207   if xen.found()
4208     summary_info += {'xen ctrl version':  xen.version()}
4209   endif
4210   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4211 endif
4212 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4213 if config_all.has_key('CONFIG_TCG')
4214   if get_option('tcg_interpreter')
4215     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4216   else
4217     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4218   endif
4219   summary_info += {'TCG plugins':       get_option('plugins')}
4220   summary_info += {'TCG debug enabled': get_option('debug_tcg')}
4221 endif
4222 summary_info += {'target list':       ' '.join(target_dirs)}
4223 if have_system
4224   summary_info += {'default devices':   get_option('default_devices')}
4225   summary_info += {'out of process emulation': multiprocess_allowed}
4226   summary_info += {'vfio-user server': vfio_user_server_allowed}
4227 endif
4228 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4229
4230 # Block layer
4231 summary_info = {}
4232 summary_info += {'coroutine backend': coroutine_backend}
4233 summary_info += {'coroutine pool':    have_coroutine_pool}
4234 if have_block
4235   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4236   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4237   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4238   summary_info += {'VirtFS (9P) support':    have_virtfs}
4239   summary_info += {'VirtFS (9P) Proxy Helper support (deprecated)': have_virtfs_proxy_helper}
4240   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4241   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4242   summary_info += {'bochs support':     get_option('bochs').allowed()}
4243   summary_info += {'cloop support':     get_option('cloop').allowed()}
4244   summary_info += {'dmg support':       get_option('dmg').allowed()}
4245   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4246   summary_info += {'vdi support':       get_option('vdi').allowed()}
4247   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4248   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4249   summary_info += {'vpc support':       get_option('vpc').allowed()}
4250   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4251   summary_info += {'qed support':       get_option('qed').allowed()}
4252   summary_info += {'parallels support': get_option('parallels').allowed()}
4253   summary_info += {'FUSE exports':      fuse}
4254   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4255 endif
4256 summary(summary_info, bool_yn: true, section: 'Block layer support')
4257
4258 # Crypto
4259 summary_info = {}
4260 summary_info += {'TLS priority':      get_option('tls_priority')}
4261 summary_info += {'GNUTLS support':    gnutls}
4262 if gnutls.found()
4263   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4264 endif
4265 summary_info += {'libgcrypt':         gcrypt}
4266 summary_info += {'nettle':            nettle}
4267 if nettle.found()
4268    summary_info += {'  XTS':             xts != 'private'}
4269 endif
4270 summary_info += {'AF_ALG support':    have_afalg}
4271 summary_info += {'rng-none':          get_option('rng_none')}
4272 summary_info += {'Linux keyring':     have_keyring}
4273 summary_info += {'Linux keyutils':    keyutils}
4274 summary(summary_info, bool_yn: true, section: 'Crypto')
4275
4276 # UI
4277 summary_info = {}
4278 if targetos == 'darwin'
4279   summary_info += {'Cocoa support':           cocoa}
4280 endif
4281 summary_info += {'SDL support':       sdl}
4282 summary_info += {'SDL image support': sdl_image}
4283 summary_info += {'GTK support':       gtk}
4284 summary_info += {'pixman':            pixman}
4285 summary_info += {'VTE support':       vte}
4286 summary_info += {'PNG support':       png}
4287 summary_info += {'VNC support':       vnc}
4288 if vnc.found()
4289   summary_info += {'VNC SASL support':  sasl}
4290   summary_info += {'VNC JPEG support':  jpeg}
4291 endif
4292 summary_info += {'spice protocol support': spice_protocol}
4293 if spice_protocol.found()
4294   summary_info += {'  spice server support': spice}
4295 endif
4296 summary_info += {'curses support':    curses}
4297 summary_info += {'brlapi support':    brlapi}
4298 summary(summary_info, bool_yn: true, section: 'User interface')
4299
4300 # Audio backends
4301 summary_info = {}
4302 if targetos not in ['darwin', 'haiku', 'windows']
4303   summary_info += {'OSS support':     oss}
4304   summary_info += {'sndio support':   sndio}
4305 elif targetos == 'darwin'
4306   summary_info += {'CoreAudio support': coreaudio}
4307 elif targetos == 'windows'
4308   summary_info += {'DirectSound support': dsound}
4309 endif
4310 if targetos == 'linux'
4311   summary_info += {'ALSA support':    alsa}
4312   summary_info += {'PulseAudio support': pulse}
4313 endif
4314 summary_info += {'PipeWire support':  pipewire}
4315 summary_info += {'JACK support':      jack}
4316 summary(summary_info, bool_yn: true, section: 'Audio backends')
4317
4318 # Network backends
4319 summary_info = {}
4320 if targetos == 'darwin'
4321   summary_info += {'vmnet.framework support': vmnet}
4322 endif
4323 summary_info += {'AF_XDP support':    libxdp}
4324 summary_info += {'slirp support':     slirp}
4325 summary_info += {'vde support':       vde}
4326 summary_info += {'netmap support':    have_netmap}
4327 summary_info += {'l2tpv3 support':    have_l2tpv3}
4328 summary(summary_info, bool_yn: true, section: 'Network backends')
4329
4330 # Libraries
4331 summary_info = {}
4332 summary_info += {'libtasn1':          tasn1}
4333 summary_info += {'PAM':               pam}
4334 summary_info += {'iconv support':     iconv}
4335 summary_info += {'virgl support':     virgl}
4336 summary_info += {'rutabaga support':  rutabaga}
4337 summary_info += {'blkio support':     blkio}
4338 summary_info += {'curl support':      curl}
4339 summary_info += {'Multipath support': mpathpersist}
4340 summary_info += {'Linux AIO support': libaio}
4341 summary_info += {'Linux io_uring support': linux_io_uring}
4342 summary_info += {'ATTR/XATTR support': libattr}
4343 summary_info += {'RDMA support':      rdma}
4344 summary_info += {'PVRDMA support':    have_pvrdma}
4345 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4346 summary_info += {'libcap-ng support': libcap_ng}
4347 summary_info += {'bpf support':       libbpf}
4348 summary_info += {'rbd support':       rbd}
4349 summary_info += {'smartcard support': cacard}
4350 summary_info += {'U2F support':       u2f}
4351 summary_info += {'libusb':            libusb}
4352 summary_info += {'usb net redir':     usbredir}
4353 summary_info += {'OpenGL support (epoxy)': opengl}
4354 summary_info += {'GBM':               gbm}
4355 summary_info += {'libiscsi support':  libiscsi}
4356 summary_info += {'libnfs support':    libnfs}
4357 if targetos == 'windows'
4358   if have_ga
4359     summary_info += {'QGA VSS support':   have_qga_vss}
4360   endif
4361 endif
4362 summary_info += {'seccomp support':   seccomp}
4363 summary_info += {'GlusterFS support': glusterfs}
4364 summary_info += {'hv-balloon support': hv_balloon}
4365 summary_info += {'TPM support':       have_tpm}
4366 summary_info += {'libssh support':    libssh}
4367 summary_info += {'lzo support':       lzo}
4368 summary_info += {'snappy support':    snappy}
4369 summary_info += {'bzip2 support':     libbzip2}
4370 summary_info += {'lzfse support':     liblzfse}
4371 summary_info += {'zstd support':      zstd}
4372 summary_info += {'NUMA host support': numa}
4373 summary_info += {'capstone':          capstone}
4374 summary_info += {'libpmem support':   libpmem}
4375 summary_info += {'libdaxctl support': libdaxctl}
4376 summary_info += {'libudev':           libudev}
4377 # Dummy dependency, keep .found()
4378 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4379 summary_info += {'selinux':           selinux}
4380 summary_info += {'libdw':             libdw}
4381 summary(summary_info, bool_yn: true, section: 'Dependencies')
4382
4383 if host_arch == 'unknown'
4384   message()
4385   warning('UNSUPPORTED HOST CPU')
4386   message()
4387   message('Support for CPU host architecture ' + cpu + ' is not currently')
4388   message('maintained. The QEMU project does not guarantee that QEMU will')
4389   message('compile or work on this host CPU. You can help by volunteering')
4390   message('to maintain it and providing a build host for our continuous')
4391   message('integration setup.')
4392   if get_option('tcg').allowed() and target_dirs.length() > 0
4393     message()
4394     message('configure has succeeded and you can continue to build, but')
4395     message('QEMU will use a slow interpreter to emulate the target CPU.')
4396   endif
4397 endif
4398
4399 if not supported_oses.contains(targetos)
4400   message()
4401   warning('UNSUPPORTED HOST OS')
4402   message()
4403   message('Support for host OS ' + targetos + 'is not currently maintained.')
4404   message('configure has succeeded and you can continue to build, but')
4405   message('the QEMU project does not guarantee that QEMU will compile or')
4406   message('work on this operating system. You can help by volunteering')
4407   message('to maintain it and providing a build host for our continuous')
4408   message('integration setup. This will ensure that future versions of QEMU')
4409   message('will keep working on ' + targetos + '.')
4410 endif
4411
4412 if host_arch == 'unknown' or not supported_oses.contains(targetos)
4413   message()
4414   message('If you want to help supporting QEMU on this platform, please')
4415   message('contact the developers at qemu-devel@nongnu.org.')
4416 endif
4417
4418 actually_reloc = get_option('relocatable')
4419 # check if get_relocated_path() is actually able to relocate paths
4420 if get_option('relocatable') and \
4421   not (get_option('prefix') / get_option('bindir')).startswith(get_option('prefix') / '')
4422   message()
4423   warning('bindir not included within prefix, the installation will not be relocatable.')
4424   actually_reloc = false
4425 endif
4426 if not actually_reloc and (targetos == 'windows' or get_option('relocatable'))
4427   if targetos == 'windows'
4428     message()
4429     warning('Windows installs should usually be relocatable.')
4430   endif
4431   message()
4432   message('QEMU will have to be installed under ' + get_option('prefix') + '.')
4433   message('Use --disable-relocatable to remove this warning.')
4434 endif