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 == 'solaris'
 230   # needed for CMSG_ macros in sys/socket.h
 231   qemu_common_flags += '-D_XOPEN_SOURCE=600'
 232   # needed for TIOCWIN* defines in termios.h
 233   qemu_common_flags += '-D__EXTENSIONS__'
 234 elif targetos == 'haiku'
 235   qemu_common_flags += ['-DB_USE_POSITIVE_POSIX_ERRORS', '-D_BSD_SOURCE', '-fPIC']
 236 endif
 237
 238 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
 239 # use i686 as default anyway, but for those that don't, an explicit
 240 # specification is necessary
 241 if host_arch == 'i386' and not cc.links('''
 242   static int sfaa(int *ptr)
 243   {
 244     return __sync_fetch_and_and(ptr, 0);
 245   }
 246
 247   int main(void)
 248   {
 249     int val = 42;
 250     val = __sync_val_compare_and_swap(&val, 0, 1);
 251     sfaa(&val);
 252     return val;
 253   }''')
 254   qemu_common_flags = ['-march=i486'] + qemu_common_flags
 255 endif
 256
 257 if get_option('gprof')
 258   qemu_common_flags += ['-p']
 259   qemu_ldflags += ['-p']
 260 endif
 261
 262 if get_option('prefer_static')
 263   qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static'
 264 endif
 265
 266 # Meson currently only handles pie as a boolean for now, so if the user
 267 # has explicitly disabled PIE we need to extend our cflags.
 268 #
 269 # -no-pie is supposedly a linker flag that has no effect on the compiler
 270 # command line, but some distros, that didn't quite know what they were
 271 # doing, made local changes to gcc's specs file that turned it into
 272 # a compiler command-line flag.
 273 #
 274 # What about linker flags?  For a static build, no PIE is implied by -static
 275 # which we added above (and if it's not because of the same specs patching,
 276 # there's nothing we can do: compilation will fail, report a bug to your
 277 # distro and do not use --disable-pie in the meanwhile).  For dynamic linking,
 278 # instead, we can't add -no-pie because it overrides -shared: the linker then
 279 # tries to build an executable instead of a shared library and fails.  So
 280 # don't add -no-pie anywhere and cross fingers. :(
 281 if not get_option('b_pie')
 282   qemu_common_flags += cc.get_supported_arguments('-fno-pie', '-no-pie')
 283 endif
 284
 285 if not get_option('stack_protector').disabled()
 286   stack_protector_probe = '''
 287     int main(int argc, char *argv[])
 288     {
 289       char arr[64], *p = arr, *c = argv[argc - 1];
 290       while (*c) {
 291           *p++ = *c++;
 292       }
 293       return 0;
 294     }'''
 295   have_stack_protector = false
 296   foreach arg : ['-fstack-protector-strong', '-fstack-protector-all']
 297     # We need to check both a compile and a link, since some compiler
 298     # setups fail only on a .c->.o compile and some only at link time
 299     if cc.compiles(stack_protector_probe, args: ['-Werror', arg]) and \
 300        cc.links(stack_protector_probe, args: ['-Werror', arg])
 301       have_stack_protector = true
 302       qemu_cflags += arg
 303       qemu_ldflags += arg
 304       break
 305     endif
 306   endforeach
 307   get_option('stack_protector') \
 308     .require(have_stack_protector, error_message: 'Stack protector not supported')
 309 endif
 310
 311 coroutine_backend = get_option('coroutine_backend')
 312 ucontext_probe = '''
 313   #include <ucontext.h>
 314   #ifdef __stub_makecontext
 315   #error Ignoring glibc stub makecontext which will always fail
 316   #endif
 317   int main(void) { makecontext(0, 0, 0); return 0; }'''
 318
 319 # On Windows the only valid backend is the Windows specific one.
 320 # For POSIX prefer ucontext, but it's not always possible. The fallback
 321 # is sigcontext.
 322 supported_backends = []
 323 if targetos == 'windows'
 324   supported_backends += ['windows']
 325 else
 326   if targetos != 'darwin' and cc.links(ucontext_probe)
 327     supported_backends += ['ucontext']
 328   endif
 329   supported_backends += ['sigaltstack']
 330 endif
 331
 332 if coroutine_backend == 'auto'
 333   coroutine_backend = supported_backends[0]
 334 elif coroutine_backend not in supported_backends
 335   error('"@0@" backend requested but not available.  Available backends: @1@' \
 336         .format(coroutine_backend, ', '.join(supported_backends)))
 337 endif
 338
 339 # Compiles if SafeStack *not* enabled
 340 safe_stack_probe = '''
 341   int main(void)
 342   {
 343   #if defined(__has_feature)
 344   #if __has_feature(safe_stack)
 345   #error SafeStack Enabled
 346   #endif
 347   #endif
 348       return 0;
 349   }'''
 350 if get_option('safe_stack') != not cc.compiles(safe_stack_probe)
 351   safe_stack_arg = get_option('safe_stack') ? '-fsanitize=safe-stack' : '-fno-sanitize=safe-stack'
 352   if get_option('safe_stack') != not cc.compiles(safe_stack_probe, args: safe_stack_arg)
 353     error(get_option('safe_stack') \
 354           ? 'SafeStack not supported by your compiler' \
 355           : 'Cannot disable SafeStack')
 356   endif
 357   qemu_cflags += safe_stack_arg
 358   qemu_ldflags += safe_stack_arg
 359 endif
 360 if get_option('safe_stack') and coroutine_backend != 'ucontext'
 361   error('SafeStack is only supported with the ucontext coroutine backend')
 362 endif
 363
 364 if get_option('sanitizers')
 365   if cc.has_argument('-fsanitize=address')
 366     qemu_cflags = ['-fsanitize=address'] + qemu_cflags
 367     qemu_ldflags = ['-fsanitize=address'] + qemu_ldflags
 368   endif
 369
 370   # Detect static linking issue with ubsan - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
 371   if cc.links('int main(int argc, char **argv) { return argc + 1; }',
 372               args: [qemu_ldflags, '-fsanitize=undefined'])
 373     qemu_cflags = ['-fsanitize=undefined'] + qemu_cflags
 374     qemu_ldflags = ['-fsanitize=undefined'] + qemu_ldflags
 375   endif
 376 endif
 377
 378 # Thread sanitizer is, for now, much noisier than the other sanitizers;
 379 # keep it separate until that is not the case.
 380 if get_option('tsan')
 381   if get_option('sanitizers')
 382     error('TSAN is not supported with other sanitizers')
 383   endif
 384   if not cc.has_function('__tsan_create_fiber',
 385                          args: '-fsanitize=thread',
 386                          prefix: '#include <sanitizer/tsan_interface.h>')
 387     error('Cannot enable TSAN due to missing fiber annotation interface')
 388   endif
 389   qemu_cflags = ['-fsanitize=thread'] + qemu_cflags
 390   qemu_ldflags = ['-fsanitize=thread'] + qemu_ldflags
 391 endif
 392
 393 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
 394 # The combination is known as "full relro", because .got.plt is read-only too.
 395 qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
 396
 397 if targetos == 'windows'
 398   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
 399   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
 400 endif
 401
 402 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
 403 if targetos != 'sunos' and not get_option('tsan')
 404   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--warn-common')
 405 endif
 406
 407 if get_option('fuzzing')
 408   # Specify a filter to only instrument code that is directly related to
 409   # virtual-devices.
 410   configure_file(output: 'instrumentation-filter',
 411                  input: 'scripts/oss-fuzz/instrumentation-filter-template',
 412                  copy: true)
 413
 414   if cc.compiles('int main () { return 0; }',
 415                   name: '-fsanitize-coverage-allowlist=/dev/null',
 416                  args: ['-fsanitize-coverage-allowlist=/dev/null',
 417                         '-fsanitize-coverage=trace-pc'] )
 418     qemu_common_flags += ['-fsanitize-coverage-allowlist=instrumentation-filter']
 419   endif
 420
 421   if get_option('fuzzing_engine') == ''
 422     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
 423     # compiled code.  To build non-fuzzer binaries with --enable-fuzzing, link
 424     # everything with fsanitize=fuzzer-no-link. Otherwise, the linker will be
 425     # unable to bind the fuzzer-related callbacks added by instrumentation.
 426     qemu_common_flags += ['-fsanitize=fuzzer-no-link']
 427     qemu_ldflags += ['-fsanitize=fuzzer-no-link']
 428     # For the actual fuzzer binaries, we need to link against the libfuzzer
 429     # library. They need to be configurable, to support OSS-Fuzz
 430     fuzz_exe_ldflags = ['-fsanitize=fuzzer']
 431   else
 432     # LIB_FUZZING_ENGINE was set; assume we are running on OSS-Fuzz, and
 433     # the needed CFLAGS have already been provided
 434     fuzz_exe_ldflags = get_option('fuzzing_engine').split()
 435   endif
 436 endif
 437
 438 add_global_arguments(qemu_common_flags, native: false, language: all_languages)
 439 add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
 440
 441 # Collect warnings that we want to enable
 442
 443 warn_flags = [
 444   '-Wundef',
 445   '-Wwrite-strings',
 446   '-Wmissing-prototypes',
 447   '-Wstrict-prototypes',
 448   '-Wredundant-decls',
 449   '-Wold-style-declaration',
 450   '-Wold-style-definition',
 451   '-Wtype-limits',
 452   '-Wformat-security',
 453   '-Wformat-y2k',
 454   '-Winit-self',
 455   '-Wignored-qualifiers',
 456   '-Wempty-body',
 457   '-Wnested-externs',
 458   '-Wendif-labels',
 459   '-Wexpansion-to-defined',
 460   '-Wimplicit-fallthrough=2',
 461   '-Wmissing-format-attribute',
 462   '-Wno-initializer-overrides',
 463   '-Wno-missing-include-dirs',
 464   '-Wno-shift-negative-value',
 465   '-Wno-string-plus-int',
 466   '-Wno-typedef-redefinition',
 467   '-Wno-tautological-type-limit-compare',
 468   '-Wno-psabi',
 469   '-Wno-gnu-variable-sized-type-not-at-end',
 470 ]
 471
 472 if targetos != 'darwin'
 473   warn_flags += ['-Wthread-safety']
 474 endif
 475
 476 # Set up C++ compiler flags
 477 qemu_cxxflags = []
 478 if 'cpp' in all_languages
 479   qemu_cxxflags = ['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'] + qemu_cflags
 480 endif
 481
 482 # clang does not support glibc + FORTIFY_SOURCE (is it still true?)
 483 if get_option('optimization') != '0' and targetos == 'linux'
 484   if cc.get_id() == 'gcc'
 485     qemu_cflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 486   endif
 487   if 'cpp' in all_languages and cxx.get_id() == 'gcc'
 488     qemu_cxxflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 489   endif
 490 endif
 491
 492 add_project_arguments(qemu_cflags, native: false, language: 'c')
 493 add_project_arguments(cc.get_supported_arguments(warn_flags), native: false, language: 'c')
 494 if 'cpp' in all_languages
 495   add_project_arguments(qemu_cxxflags, native: false, language: 'cpp')
 496   add_project_arguments(cxx.get_supported_arguments(warn_flags), native: false, language: 'cpp')
 497 endif
 498 if 'objc' in all_languages
 499   # Note sanitizer flags are not applied to Objective-C sources!
 500   add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
 501 endif
 502 if targetos == 'linux'
 503   add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
 504                         '-isystem', 'linux-headers',
 505                         language: all_languages)
 506 endif
 507
 508 add_project_arguments('-iquote', '.',
 509                       '-iquote', meson.current_source_dir(),
 510                       '-iquote', meson.current_source_dir() / 'include',
 511                       language: all_languages)
 512
 513 # If a host-specific include directory exists, list that first...
 514 host_include = meson.current_source_dir() / 'host/include/'
 515 if fs.is_dir(host_include / host_arch)
 516   add_project_arguments('-iquote', host_include / host_arch,
 517                         language: all_languages)
 518 endif
 519 # ... followed by the generic fallback.
 520 add_project_arguments('-iquote', host_include / 'generic',
 521                       language: all_languages)
 522
 523 sparse = find_program('cgcc', required: get_option('sparse'))
 524 if sparse.found()
 525   run_target('sparse',
 526              command: [find_program('scripts/check_sparse.py'),
 527                        'compile_commands.json', sparse.full_path(), '-Wbitwise',
 528                        '-Wno-transparent-union', '-Wno-old-initializer',
 529                        '-Wno-non-pointer-null'])
 530 endif
 531
 532 ###########################################
 533 # Target-specific checks and dependencies #
 534 ###########################################
 535
 536 # Fuzzing
 537 if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
 538     not cc.links('''
 539           #include <stdint.h>
 540           #include <sys/types.h>
 541           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 542           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 543         ''',
 544         args: ['-Werror', '-fsanitize=fuzzer'])
 545   error('Your compiler does not support -fsanitize=fuzzer')
 546 endif
 547
 548 # Tracing backends
 549 if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
 550   error('ftrace is supported only on Linux')
 551 endif
 552 if 'syslog' in get_option('trace_backends') and not cc.compiles('''
 553     #include <syslog.h>
 554     int main(void) {
 555         openlog("qemu", LOG_PID, LOG_DAEMON);
 556         syslog(LOG_INFO, "configure");
 557         return 0;
 558     }''')
 559   error('syslog is not supported on this system')
 560 endif
 561
 562 # Miscellaneous Linux-only features
 563 get_option('mpath') \
 564   .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
 565
 566 multiprocess_allowed = get_option('multiprocess') \
 567   .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
 568   .allowed()
 569
 570 vfio_user_server_allowed = get_option('vfio_user_server') \
 571   .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
 572   .allowed()
 573
 574 have_tpm = get_option('tpm') \
 575   .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
 576   .allowed()
 577
 578 # vhost
 579 have_vhost_user = get_option('vhost_user') \
 580   .disable_auto_if(targetos != 'linux') \
 581   .require(targetos != 'windows',
 582            error_message: 'vhost-user is not available on Windows').allowed()
 583 have_vhost_vdpa = get_option('vhost_vdpa') \
 584   .require(targetos == 'linux',
 585            error_message: 'vhost-vdpa is only available on Linux').allowed()
 586 have_vhost_kernel = get_option('vhost_kernel') \
 587   .require(targetos == 'linux',
 588            error_message: 'vhost-kernel is only available on Linux').allowed()
 589 have_vhost_user_crypto = get_option('vhost_crypto') \
 590   .require(have_vhost_user,
 591            error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
 592
 593 have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
 594
 595 have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
 596 have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
 597 have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
 598 have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
 599
 600 # Target-specific libraries and flags
 601 libm = cc.find_library('m', required: false)
 602 threads = dependency('threads')
 603 util = cc.find_library('util', required: false)
 604 winmm = []
 605 socket = []
 606 version_res = []
 607 coref = []
 608 iokit = []
 609 emulator_link_args = []
 610 nvmm =not_found
 611 hvf = not_found
 612 midl = not_found
 613 widl = not_found
 614 pathcch = not_found
 615 host_dsosuf = '.so'
 616 if targetos == 'windows'
 617   midl = find_program('midl', required: false)
 618   widl = find_program('widl', required: false)
 619   pathcch = cc.find_library('pathcch')
 620   socket = cc.find_library('ws2_32')
 621   winmm = cc.find_library('winmm')
 622
 623   win = import('windows')
 624   version_res = win.compile_resources('version.rc',
 625                                       depend_files: files('pc-bios/qemu-nsis.ico'),
 626                                       include_directories: include_directories('.'))
 627   host_dsosuf = '.dll'
 628 elif targetos == 'darwin'
 629   coref = dependency('appleframeworks', modules: 'CoreFoundation')
 630   iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
 631   host_dsosuf = '.dylib'
 632 elif targetos == 'sunos'
 633   socket = [cc.find_library('socket'),
 634             cc.find_library('nsl'),
 635             cc.find_library('resolv')]
 636 elif targetos == 'haiku'
 637   socket = [cc.find_library('posix_error_mapper'),
 638             cc.find_library('network'),
 639             cc.find_library('bsd')]
 640 elif targetos == 'openbsd'
 641   if get_option('tcg').allowed() and target_dirs.length() > 0
 642     # Disable OpenBSD W^X if available
 643     emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
 644   endif
 645 endif
 646
 647 # Target-specific configuration of accelerators
 648 accelerators = []
 649 if get_option('kvm').allowed() and targetos == 'linux'
 650   accelerators += 'CONFIG_KVM'
 651 endif
 652 if get_option('whpx').allowed() and targetos == 'windows'
 653   if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
 654     error('WHPX requires 64-bit host')
 655   elif cc.has_header('winhvplatform.h', required: get_option('whpx')) and \
 656        cc.has_header('winhvemulation.h', required: get_option('whpx'))
 657     accelerators += 'CONFIG_WHPX'
 658   endif
 659 endif
 660 if get_option('hvf').allowed()
 661   hvf = dependency('appleframeworks', modules: 'Hypervisor',
 662                    required: get_option('hvf'))
 663   if hvf.found()
 664     accelerators += 'CONFIG_HVF'
 665   endif
 666 endif
 667 if targetos == 'netbsd'
 668   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
 669   if nvmm.found()
 670     accelerators += 'CONFIG_NVMM'
 671   endif
 672 endif
 673
 674 tcg_arch = host_arch
 675 if get_option('tcg').allowed()
 676   if host_arch == 'unknown'
 677     if not get_option('tcg_interpreter')
 678       error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
 679     endif
 680   elif get_option('tcg_interpreter')
 681     warning('Use of the TCG interpreter is not recommended on this host')
 682     warning('architecture. There is a native TCG execution backend available')
 683     warning('which provides substantially better performance and reliability.')
 684     warning('It is strongly recommended to remove the --enable-tcg-interpreter')
 685     warning('configuration option on this architecture to use the native')
 686     warning('backend.')
 687   endif
 688   if get_option('tcg_interpreter')
 689     tcg_arch = 'tci'
 690   elif host_arch == 'x86_64'
 691     tcg_arch = 'i386'
 692   elif host_arch == 'ppc64'
 693     tcg_arch = 'ppc'
 694   endif
 695   add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
 696                         language: all_languages)
 697
 698   accelerators += 'CONFIG_TCG'
 699 endif
 700
 701 if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
 702   error('KVM not available on this platform')
 703 endif
 704 if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
 705   error('HVF not available on this platform')
 706 endif
 707 if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
 708   error('NVMM not available on this platform')
 709 endif
 710 if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
 711   error('WHPX not available on this platform')
 712 endif
 713
 714 ################
 715 # Dependencies #
 716 ################
 717
 718 # When bumping glib minimum version, please check also whether to increase
 719 # the _WIN32_WINNT setting in osdep.h according to the value from glib
 720 glib_req_ver = '>=2.56.0'
 721 glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
 722                     method: 'pkg-config')
 723 glib_cflags = []
 724 if enable_modules
 725   gmodule = dependency('gmodule-export-2.0', version: glib_req_ver, required: true,
 726                        method: 'pkg-config')
 727 elif get_option('plugins')
 728   gmodule = dependency('gmodule-no-export-2.0', version: glib_req_ver, required: true,
 729                        method: 'pkg-config')
 730 else
 731   gmodule = not_found
 732 endif
 733
 734 # This workaround is required due to a bug in pkg-config file for glib as it
 735 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
 736 if targetos == 'windows' and get_option('prefer_static')
 737   glib_cflags += ['-DGLIB_STATIC_COMPILATION']
 738 endif
 739
 740 # Sanity check that the current size_t matches the
 741 # size that glib thinks it should be. This catches
 742 # problems on multi-arch where people try to build
 743 # 32-bit QEMU while pointing at 64-bit glib headers
 744
 745 if not cc.compiles('''
 746   #include <glib.h>
 747   #include <unistd.h>
 748
 749   #define QEMU_BUILD_BUG_ON(x) \
 750   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
 751
 752   int main(void) {
 753      QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
 754      return 0;
 755   }''', dependencies: glib_pc, args: glib_cflags)
 756   error('''sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
 757         You probably need to set PKG_CONFIG_LIBDIR" to point
 758         to the right pkg-config files for your build target.''')
 759 endif
 760
 761 # Silence clang warnings triggered by glib < 2.57.2
 762 if not cc.compiles('''
 763   #include <glib.h>
 764   typedef struct Foo {
 765     int i;
 766   } Foo;
 767   static void foo_free(Foo *f)
 768   {
 769     g_free(f);
 770   }
 771   G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
 772   int main(void) { return 0; }''', dependencies: glib_pc, args: ['-Wunused-function', '-Werror'])
 773   glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
 774 endif
 775 glib = declare_dependency(dependencies: [glib_pc, gmodule],
 776                           compile_args: glib_cflags,
 777                           version: glib_pc.version())
 778
 779 # Check whether glib has gslice, which we have to avoid for correctness.
 780 # TODO: remove this check and the corresponding workaround (qtree) when
 781 # the minimum supported glib is >= 2.75.3
 782 glib_has_gslice = glib.version().version_compare('<2.75.3')
 783
 784 # override glib dep to include the above refinements
 785 meson.override_dependency('glib-2.0', glib)
 786
 787 # The path to glib.h is added to all compilation commands.
 788 add_project_dependencies(glib.partial_dependency(compile_args: true, includes: true),
 789                          native: false, language: all_languages)
 790
 791 gio = not_found
 792 gdbus_codegen = not_found
 793 gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
 794 if not get_option('gio').auto() or have_system
 795   gio = dependency('gio-2.0', required: get_option('gio'),
 796                    method: 'pkg-config')
 797   if gio.found() and not cc.links('''
 798     #include <gio/gio.h>
 799     int main(void)
 800     {
 801       g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
 802       return 0;
 803     }''', dependencies: [glib, gio])
 804     if get_option('gio').enabled()
 805       error('The installed libgio is broken for static linking')
 806     endif
 807     gio = not_found
 808   endif
 809   if gio.found()
 810     gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
 811                                  required: get_option('gio'))
 812     gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
 813                           method: 'pkg-config')
 814     gio = declare_dependency(dependencies: [gio, gio_unix],
 815                              version: gio.version())
 816   endif
 817 endif
 818 if gdbus_codegen.found() and get_option('cfi')
 819   gdbus_codegen = not_found
 820   gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
 821 endif
 822
 823 xml_pp = find_program('scripts/xml-preprocess.py')
 824
 825 lttng = not_found
 826 if 'ust' in get_option('trace_backends')
 827   lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
 828                      method: 'pkg-config')
 829 endif
 830 pixman = not_found
 831 if have_system or have_tools
 832   pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
 833                       method: 'pkg-config')
 834 endif
 835 zlib = dependency('zlib', required: true)
 836
 837 libaio = not_found
 838 if not get_option('linux_aio').auto() or have_block
 839   libaio = cc.find_library('aio', has_headers: ['libaio.h'],
 840                            required: get_option('linux_aio'))
 841 endif
 842
 843 linux_io_uring_test = '''
 844   #include <liburing.h>
 845   #include <linux/errqueue.h>
 846
 847   int main(void) { return 0; }'''
 848
 849 linux_io_uring = not_found
 850 if not get_option('linux_io_uring').auto() or have_block
 851   linux_io_uring = dependency('liburing', version: '>=0.3',
 852                               required: get_option('linux_io_uring'),
 853                               method: 'pkg-config')
 854   if not cc.links(linux_io_uring_test)
 855     linux_io_uring = not_found
 856   endif
 857 endif
 858
 859 libnfs = not_found
 860 if not get_option('libnfs').auto() or have_block
 861   libnfs = dependency('libnfs', version: '>=1.9.3',
 862                       required: get_option('libnfs'),
 863                       method: 'pkg-config')
 864 endif
 865
 866 libattr_test = '''
 867   #include <stddef.h>
 868   #include <sys/types.h>
 869   #ifdef CONFIG_LIBATTR
 870   #include <attr/xattr.h>
 871   #else
 872   #include <sys/xattr.h>
 873   #endif
 874   int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
 875
 876 libattr = not_found
 877 have_old_libattr = false
 878 if get_option('attr').allowed()
 879   if cc.links(libattr_test)
 880     libattr = declare_dependency()
 881   else
 882     libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
 883                               required: get_option('attr'))
 884     if libattr.found() and not \
 885       cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
 886       libattr = not_found
 887       if get_option('attr').enabled()
 888         error('could not link libattr')
 889       else
 890         warning('could not link libattr, disabling')
 891       endif
 892     else
 893       have_old_libattr = libattr.found()
 894     endif
 895   endif
 896 endif
 897
 898 cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
 899                    required: get_option('cocoa'))
 900
 901 vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
 902 if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
 903                                               'VMNET_BRIDGED_MODE',
 904                                               dependencies: vmnet)
 905   vmnet = not_found
 906   if get_option('vmnet').enabled()
 907     error('vmnet.framework API is outdated')
 908   else
 909     warning('vmnet.framework API is outdated, disabling')
 910   endif
 911 endif
 912
 913 seccomp = not_found
 914 seccomp_has_sysrawrc = false
 915 if not get_option('seccomp').auto() or have_system or have_tools
 916   seccomp = dependency('libseccomp', version: '>=2.3.0',
 917                        required: get_option('seccomp'),
 918                        method: 'pkg-config')
 919   if seccomp.found()
 920     seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
 921                                                 'SCMP_FLTATR_API_SYSRAWRC',
 922                                                 dependencies: seccomp)
 923   endif
 924 endif
 925
 926 libcap_ng = not_found
 927 if not get_option('cap_ng').auto() or have_system or have_tools
 928   libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
 929                               required: get_option('cap_ng'))
 930 endif
 931 if libcap_ng.found() and not cc.links('''
 932    #include <cap-ng.h>
 933    int main(void)
 934    {
 935      capng_capability_to_name(CAPNG_EFFECTIVE);
 936      return 0;
 937    }''', dependencies: libcap_ng)
 938   libcap_ng = not_found
 939   if get_option('cap_ng').enabled()
 940     error('could not link libcap-ng')
 941   else
 942     warning('could not link libcap-ng, disabling')
 943   endif
 944 endif
 945
 946 if get_option('xkbcommon').auto() and not have_system and not have_tools
 947   xkbcommon = not_found
 948 else
 949   xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
 950                          method: 'pkg-config')
 951 endif
 952
 953 slirp = not_found
 954 if not get_option('slirp').auto() or have_system
 955   slirp = dependency('slirp', required: get_option('slirp'),
 956                      method: 'pkg-config')
 957   # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
 958   # it passes function pointers within libslirp as callbacks for timers.
 959   # When using a system-wide shared libslirp, the type information for the
 960   # callback is missing and the timer call produces a false positive with CFI.
 961   # Do not use the "version" keyword argument to produce a better error.
 962   # with control-flow integrity.
 963   if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
 964     if get_option('slirp').enabled()
 965       error('Control-Flow Integrity requires libslirp 4.7.')
 966     else
 967       warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
 968       slirp = not_found
 969     endif
 970   endif
 971 endif
 972
 973 vde = not_found
 974 if not get_option('vde').auto() or have_system or have_tools
 975   vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
 976                            required: get_option('vde'))
 977 endif
 978 if vde.found() and not cc.links('''
 979    #include <libvdeplug.h>
 980    int main(void)
 981    {
 982      struct vde_open_args a = {0, 0, 0};
 983      char s[] = "";
 984      vde_open(s, s, &a);
 985      return 0;
 986    }''', dependencies: vde)
 987   vde = not_found
 988   if get_option('cap_ng').enabled()
 989     error('could not link libvdeplug')
 990   else
 991     warning('could not link libvdeplug, disabling')
 992   endif
 993 endif
 994
 995 pulse = not_found
 996 if not get_option('pa').auto() or (targetos == 'linux' and have_system)
 997   pulse = dependency('libpulse', required: get_option('pa'),
 998                      method: 'pkg-config')
 999 endif
1000 alsa = not_found
1001 if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
1002   alsa = dependency('alsa', required: get_option('alsa'),
1003                     method: 'pkg-config')
1004 endif
1005 jack = not_found
1006 if not get_option('jack').auto() or have_system
1007   jack = dependency('jack', required: get_option('jack'),
1008                     method: 'pkg-config')
1009 endif
1010 pipewire = not_found
1011 if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
1012   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
1013                     required: get_option('pipewire'),
1014                     method: 'pkg-config')
1015 endif
1016 sndio = not_found
1017 if not get_option('sndio').auto() or have_system
1018   sndio = dependency('sndio', required: get_option('sndio'),
1019                     method: 'pkg-config')
1020 endif
1021
1022 spice_protocol = not_found
1023 if not get_option('spice_protocol').auto() or have_system
1024   spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
1025                               required: get_option('spice_protocol'),
1026                               method: 'pkg-config')
1027 endif
1028 spice = not_found
1029 if not get_option('spice').auto() or have_system
1030   spice = dependency('spice-server', version: '>=0.14.0',
1031                      required: get_option('spice'),
1032                      method: 'pkg-config')
1033 endif
1034 spice_headers = spice.partial_dependency(compile_args: true, includes: true)
1035
1036 rt = cc.find_library('rt', required: false)
1037
1038 libiscsi = not_found
1039 if not get_option('libiscsi').auto() or have_block
1040   libiscsi = dependency('libiscsi', version: '>=1.9.0',
1041                          required: get_option('libiscsi'),
1042                          method: 'pkg-config')
1043 endif
1044 zstd = not_found
1045 if not get_option('zstd').auto() or have_block
1046   zstd = dependency('libzstd', version: '>=1.4.0',
1047                     required: get_option('zstd'),
1048                     method: 'pkg-config')
1049 endif
1050 virgl = not_found
1051
1052 have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
1053 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
1054   virgl = dependency('virglrenderer',
1055                      method: 'pkg-config',
1056                      required: get_option('virglrenderer'))
1057   if virgl.found()
1058     config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
1059                          cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
1060                                        prefix: '#include <virglrenderer.h>',
1061                                        dependencies: virgl))
1062   endif
1063 endif
1064 blkio = not_found
1065 if not get_option('blkio').auto() or have_block
1066   blkio = dependency('blkio',
1067                      method: 'pkg-config',
1068                      required: get_option('blkio'))
1069 endif
1070 curl = not_found
1071 if not get_option('curl').auto() or have_block
1072   curl = dependency('libcurl', version: '>=7.29.0',
1073                     method: 'pkg-config',
1074                     required: get_option('curl'))
1075 endif
1076 libudev = not_found
1077 if targetos == 'linux' and (have_system or have_tools)
1078   libudev = dependency('libudev',
1079                        method: 'pkg-config',
1080                        required: get_option('libudev'))
1081 endif
1082
1083 mpathlibs = [libudev]
1084 mpathpersist = not_found
1085 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1086   mpath_test_source = '''
1087     #include <libudev.h>
1088     #include <mpath_persist.h>
1089     unsigned mpath_mx_alloc_len = 1024;
1090     int logsink;
1091     static struct config *multipath_conf;
1092     extern struct udev *udev;
1093     extern struct config *get_multipath_config(void);
1094     extern void put_multipath_config(struct config *conf);
1095     struct udev *udev;
1096     struct config *get_multipath_config(void) { return multipath_conf; }
1097     void put_multipath_config(struct config *conf) { }
1098     int main(void) {
1099         udev = udev_new();
1100         multipath_conf = mpath_lib_init();
1101         return 0;
1102     }'''
1103   libmpathpersist = cc.find_library('mpathpersist',
1104                                     required: get_option('mpath'))
1105   if libmpathpersist.found()
1106     mpathlibs += libmpathpersist
1107     if get_option('prefer_static')
1108       mpathlibs += cc.find_library('devmapper',
1109                                      required: get_option('mpath'))
1110     endif
1111     mpathlibs += cc.find_library('multipath',
1112                                  required: get_option('mpath'))
1113     foreach lib: mpathlibs
1114       if not lib.found()
1115         mpathlibs = []
1116         break
1117       endif
1118     endforeach
1119     if mpathlibs.length() == 0
1120       msg = 'Dependencies missing for libmpathpersist'
1121     elif cc.links(mpath_test_source, dependencies: mpathlibs)
1122       mpathpersist = declare_dependency(dependencies: mpathlibs)
1123     else
1124       msg = 'Cannot detect libmpathpersist API'
1125     endif
1126     if not mpathpersist.found()
1127       if get_option('mpath').enabled()
1128         error(msg)
1129       else
1130         warning(msg + ', disabling')
1131       endif
1132     endif
1133   endif
1134 endif
1135
1136 iconv = not_found
1137 curses = not_found
1138 if have_system and get_option('curses').allowed()
1139   curses_test = '''
1140     #if defined(__APPLE__) || defined(__OpenBSD__)
1141     #define _XOPEN_SOURCE_EXTENDED 1
1142     #endif
1143     #include <locale.h>
1144     #include <curses.h>
1145     #include <wchar.h>
1146     int main(void) {
1147       wchar_t wch = L'w';
1148       setlocale(LC_ALL, "");
1149       resize_term(0, 0);
1150       addwstr(L"wide chars\n");
1151       addnwstr(&wch, 1);
1152       add_wch(WACS_DEGREE);
1153       return 0;
1154     }'''
1155
1156   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1157   curses = dependency(curses_dep_list,
1158                       required: false,
1159                       method: 'pkg-config')
1160   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1161   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1162   if curses.found()
1163     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1164       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1165                                   version: curses.version())
1166     else
1167       msg = 'curses package not usable'
1168       curses = not_found
1169     endif
1170   endif
1171   if not curses.found()
1172     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1173     if targetos != 'windows' and not has_curses_h
1174       message('Trying with /usr/include/ncursesw')
1175       curses_compile_args += ['-I/usr/include/ncursesw']
1176       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1177     endif
1178     if has_curses_h
1179       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1180       foreach curses_libname : curses_libname_list
1181         libcurses = cc.find_library(curses_libname,
1182                                     required: false)
1183         if libcurses.found()
1184           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1185             curses = declare_dependency(compile_args: curses_compile_args,
1186                                         dependencies: [libcurses])
1187             break
1188           else
1189             msg = 'curses library not usable'
1190           endif
1191         endif
1192       endforeach
1193     endif
1194   endif
1195   if get_option('iconv').allowed()
1196     foreach link_args : [ ['-liconv'], [] ]
1197       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1198       # We need to use libiconv if available because mixing libiconv's headers with
1199       # the system libc does not work.
1200       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1201       # included in the command line and libiconv will not be found.
1202       if cc.links('''
1203         #include <iconv.h>
1204         int main(void) {
1205           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1206           return conv != (iconv_t) -1;
1207         }''', args: link_args, dependencies: glib)
1208         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1209         break
1210       endif
1211     endforeach
1212   endif
1213   if curses.found() and not iconv.found()
1214     if get_option('iconv').enabled()
1215       error('iconv not available')
1216     endif
1217     msg = 'iconv required for curses UI but not available'
1218     curses = not_found
1219   endif
1220   if not curses.found() and msg != ''
1221     if get_option('curses').enabled()
1222       error(msg)
1223     else
1224       warning(msg + ', disabling')
1225     endif
1226   endif
1227 endif
1228
1229 brlapi = not_found
1230 if not get_option('brlapi').auto() or have_system
1231   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1232                          required: get_option('brlapi'))
1233   if brlapi.found() and not cc.links('''
1234      #include <brlapi.h>
1235      #include <stddef.h>
1236      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1237     brlapi = not_found
1238     if get_option('brlapi').enabled()
1239       error('could not link brlapi')
1240     else
1241       warning('could not link brlapi, disabling')
1242     endif
1243   endif
1244 endif
1245
1246 sdl = not_found
1247 if not get_option('sdl').auto() or have_system
1248   sdl = dependency('sdl2', required: get_option('sdl'))
1249   sdl_image = not_found
1250 endif
1251 if sdl.found()
1252   # Some versions of SDL have problems with -Wundef
1253   if not cc.compiles('''
1254                      #include <SDL.h>
1255                      #include <SDL_syswm.h>
1256                      int main(int argc, char *argv[]) { return 0; }
1257                      ''', dependencies: sdl, args: '-Werror=undef')
1258     sdl = declare_dependency(compile_args: '-Wno-undef',
1259                              dependencies: sdl,
1260                              version: sdl.version())
1261   endif
1262   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1263                          method: 'pkg-config')
1264 else
1265   if get_option('sdl_image').enabled()
1266     error('sdl-image required, but SDL was @0@'.format(
1267           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1268   endif
1269   sdl_image = not_found
1270 endif
1271
1272 rbd = not_found
1273 if not get_option('rbd').auto() or have_block
1274   librados = cc.find_library('rados', required: get_option('rbd'))
1275   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1276                            required: get_option('rbd'))
1277   if librados.found() and librbd.found()
1278     if cc.links('''
1279       #include <stdio.h>
1280       #include <rbd/librbd.h>
1281       int main(void) {
1282         rados_t cluster;
1283         rados_create(&cluster, NULL);
1284         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1285         #error
1286         #endif
1287         return 0;
1288       }''', dependencies: [librbd, librados])
1289       rbd = declare_dependency(dependencies: [librbd, librados])
1290     elif get_option('rbd').enabled()
1291       error('librbd >= 1.12.0 required')
1292     else
1293       warning('librbd >= 1.12.0 not found, disabling')
1294     endif
1295   endif
1296 endif
1297
1298 glusterfs = not_found
1299 glusterfs_ftruncate_has_stat = false
1300 glusterfs_iocb_has_stat = false
1301 if not get_option('glusterfs').auto() or have_block
1302   glusterfs = dependency('glusterfs-api', version: '>=3',
1303                          required: get_option('glusterfs'),
1304                          method: 'pkg-config')
1305   if glusterfs.found()
1306     glusterfs_ftruncate_has_stat = cc.links('''
1307       #include <glusterfs/api/glfs.h>
1308
1309       int
1310       main(void)
1311       {
1312           /* new glfs_ftruncate() passes two additional args */
1313           return glfs_ftruncate(NULL, 0, NULL, NULL);
1314       }
1315     ''', dependencies: glusterfs)
1316     glusterfs_iocb_has_stat = cc.links('''
1317       #include <glusterfs/api/glfs.h>
1318
1319       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1320       static void
1321       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1322       {}
1323
1324       int
1325       main(void)
1326       {
1327           glfs_io_cbk iocb = &glusterfs_iocb;
1328           iocb(NULL, 0 , NULL, NULL, NULL);
1329           return 0;
1330       }
1331     ''', dependencies: glusterfs)
1332   endif
1333 endif
1334
1335 libssh = not_found
1336 if not get_option('libssh').auto() or have_block
1337   libssh = dependency('libssh', version: '>=0.8.7',
1338                     method: 'pkg-config',
1339                     required: get_option('libssh'))
1340 endif
1341
1342 libbzip2 = not_found
1343 if not get_option('bzip2').auto() or have_block
1344   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1345                              required: get_option('bzip2'))
1346   if libbzip2.found() and not cc.links('''
1347      #include <bzlib.h>
1348      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1349     libbzip2 = not_found
1350     if get_option('bzip2').enabled()
1351       error('could not link libbzip2')
1352     else
1353       warning('could not link libbzip2, disabling')
1354     endif
1355   endif
1356 endif
1357
1358 liblzfse = not_found
1359 if not get_option('lzfse').auto() or have_block
1360   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1361                              required: get_option('lzfse'))
1362 endif
1363 if liblzfse.found() and not cc.links('''
1364    #include <lzfse.h>
1365    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1366   liblzfse = not_found
1367   if get_option('lzfse').enabled()
1368     error('could not link liblzfse')
1369   else
1370     warning('could not link liblzfse, disabling')
1371   endif
1372 endif
1373
1374 oss = not_found
1375 if get_option('oss').allowed() and have_system
1376   if not cc.has_header('sys/soundcard.h')
1377     # not found
1378   elif targetos == 'netbsd'
1379     oss = cc.find_library('ossaudio', required: get_option('oss'))
1380   else
1381     oss = declare_dependency()
1382   endif
1383
1384   if not oss.found()
1385     if get_option('oss').enabled()
1386       error('OSS not found')
1387     endif
1388   endif
1389 endif
1390 dsound = not_found
1391 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1392   if cc.has_header('dsound.h')
1393     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1394   endif
1395
1396   if not dsound.found()
1397     if get_option('dsound').enabled()
1398       error('DirectSound not found')
1399     endif
1400   endif
1401 endif
1402
1403 coreaudio = not_found
1404 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1405   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1406                          required: get_option('coreaudio'))
1407 endif
1408
1409 opengl = not_found
1410 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1411   epoxy = dependency('epoxy', method: 'pkg-config',
1412                       required: get_option('opengl'))
1413   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1414     opengl = epoxy
1415   elif get_option('opengl').enabled()
1416     error('epoxy/egl.h not found')
1417   endif
1418 endif
1419 gbm = not_found
1420 if (have_system or have_tools) and (virgl.found() or opengl.found())
1421   gbm = dependency('gbm', method: 'pkg-config', required: false)
1422 endif
1423 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1424
1425 gnutls = not_found
1426 gnutls_crypto = not_found
1427 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1428   # For general TLS support our min gnutls matches
1429   # that implied by our platform support matrix
1430   #
1431   # For the crypto backends, we look for a newer
1432   # gnutls:
1433   #
1434   #   Version 3.6.8  is needed to get XTS
1435   #   Version 3.6.13 is needed to get PBKDF
1436   #   Version 3.6.14 is needed to get HW accelerated XTS
1437   #
1438   # If newer enough gnutls isn't available, we can
1439   # still use a different crypto backend to satisfy
1440   # the platform support requirements
1441   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1442                              method: 'pkg-config',
1443                              required: false)
1444   if gnutls_crypto.found()
1445     gnutls = gnutls_crypto
1446   else
1447     # Our min version if all we need is TLS
1448     gnutls = dependency('gnutls', version: '>=3.5.18',
1449                         method: 'pkg-config',
1450                         required: get_option('gnutls'))
1451   endif
1452 endif
1453
1454 # We prefer use of gnutls for crypto, unless the options
1455 # explicitly asked for nettle or gcrypt.
1456 #
1457 # If gnutls isn't available for crypto, then we'll prefer
1458 # gcrypt over nettle for performance reasons.
1459 gcrypt = not_found
1460 nettle = not_found
1461 hogweed = not_found
1462 xts = 'none'
1463
1464 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1465   error('Only one of gcrypt & nettle can be enabled')
1466 endif
1467
1468 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1469 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1470   gnutls_crypto = not_found
1471 endif
1472
1473 if not gnutls_crypto.found()
1474   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1475     gcrypt = dependency('libgcrypt', version: '>=1.8',
1476                         method: 'config-tool',
1477                         required: get_option('gcrypt'))
1478     # Debian has removed -lgpg-error from libgcrypt-config
1479     # as it "spreads unnecessary dependencies" which in
1480     # turn breaks static builds...
1481     if gcrypt.found() and get_option('prefer_static')
1482       gcrypt = declare_dependency(dependencies:
1483         [gcrypt,
1484          cc.find_library('gpg-error', required: true)],
1485         version: gcrypt.version())
1486     endif
1487   endif
1488   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1489     nettle = dependency('nettle', version: '>=3.4',
1490                         method: 'pkg-config',
1491                         required: get_option('nettle'))
1492     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1493       xts = 'private'
1494     endif
1495   endif
1496 endif
1497
1498 gmp = dependency('gmp', required: false, method: 'pkg-config')
1499 if nettle.found() and gmp.found()
1500   hogweed = dependency('hogweed', version: '>=3.4',
1501                        method: 'pkg-config',
1502                        required: get_option('nettle'))
1503 endif
1504
1505
1506 gtk = not_found
1507 gtkx11 = not_found
1508 vte = not_found
1509 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1510
1511 if not get_option('gtk').auto() or have_system
1512   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1513                    method: 'pkg-config',
1514                    required: get_option('gtk'))
1515   if gtk.found()
1516     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1517                         method: 'pkg-config',
1518                         required: false)
1519     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1520                              version: gtk.version())
1521
1522     if not get_option('vte').auto() or have_system
1523       vte = dependency('vte-2.91',
1524                        method: 'pkg-config',
1525                        required: get_option('vte'))
1526     endif
1527   elif have_gtk_clipboard
1528     error('GTK clipboard requested, but GTK not found')
1529   endif
1530 endif
1531
1532 x11 = not_found
1533 if gtkx11.found()
1534   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1535 endif
1536 png = not_found
1537 if get_option('png').allowed() and have_system
1538    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1539                     method: 'pkg-config')
1540 endif
1541 vnc = not_found
1542 jpeg = not_found
1543 sasl = not_found
1544 if get_option('vnc').allowed() and have_system
1545   vnc = declare_dependency() # dummy dependency
1546   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1547                     method: 'pkg-config')
1548   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1549                          required: get_option('vnc_sasl'))
1550   if sasl.found()
1551     sasl = declare_dependency(dependencies: sasl,
1552                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1553   endif
1554 endif
1555
1556 pam = not_found
1557 if not get_option('auth_pam').auto() or have_system
1558   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1559                         required: get_option('auth_pam'))
1560 endif
1561 if pam.found() and not cc.links('''
1562    #include <stddef.h>
1563    #include <security/pam_appl.h>
1564    int main(void) {
1565      const char *service_name = "qemu";
1566      const char *user = "frank";
1567      const struct pam_conv pam_conv = { 0 };
1568      pam_handle_t *pamh = NULL;
1569      pam_start(service_name, user, &pam_conv, &pamh);
1570      return 0;
1571    }''', dependencies: pam)
1572   pam = not_found
1573   if get_option('auth_pam').enabled()
1574     error('could not link libpam')
1575   else
1576     warning('could not link libpam, disabling')
1577   endif
1578 endif
1579
1580 snappy = not_found
1581 if not get_option('snappy').auto() or have_system
1582   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1583                            required: get_option('snappy'))
1584 endif
1585 if snappy.found() and not cc.links('''
1586    #include <snappy-c.h>
1587    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1588   snappy = not_found
1589   if get_option('snappy').enabled()
1590     error('could not link libsnappy')
1591   else
1592     warning('could not link libsnappy, disabling')
1593   endif
1594 endif
1595
1596 lzo = not_found
1597 if not get_option('lzo').auto() or have_system
1598   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1599                         required: get_option('lzo'))
1600 endif
1601 if lzo.found() and not cc.links('''
1602    #include <lzo/lzo1x.h>
1603    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1604   lzo = not_found
1605   if get_option('lzo').enabled()
1606     error('could not link liblzo2')
1607   else
1608     warning('could not link liblzo2, disabling')
1609   endif
1610 endif
1611
1612 numa = not_found
1613 if not get_option('numa').auto() or have_system or have_tools
1614   numa = cc.find_library('numa', has_headers: ['numa.h'],
1615                               required: get_option('numa'))
1616 endif
1617 if numa.found() and not cc.links('''
1618    #include <numa.h>
1619    int main(void) { return numa_available(); }
1620    ''', dependencies: numa)
1621   numa = not_found
1622   if get_option('numa').enabled()
1623     error('could not link numa')
1624   else
1625     warning('could not link numa, disabling')
1626   endif
1627 endif
1628
1629 rdma = not_found
1630 if not get_option('rdma').auto() or have_system
1631   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1632   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1633                                required: get_option('rdma')),
1634                cc.find_library('ibverbs', required: get_option('rdma')),
1635                libumad]
1636   rdma = declare_dependency(dependencies: rdma_libs)
1637   foreach lib: rdma_libs
1638     if not lib.found()
1639       rdma = not_found
1640     endif
1641   endforeach
1642 endif
1643
1644 xen = not_found
1645 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1646   xencontrol = dependency('xencontrol', required: false,
1647                           method: 'pkg-config')
1648   if xencontrol.found()
1649     xen_pc = declare_dependency(version: xencontrol.version(),
1650       dependencies: [
1651         xencontrol,
1652         # disabler: true makes xen_pc.found() return false if any is not found
1653         dependency('xenstore', required: false,
1654                    method: 'pkg-config',
1655                    disabler: true),
1656         dependency('xenforeignmemory', required: false,
1657                    method: 'pkg-config',
1658                    disabler: true),
1659         dependency('xengnttab', required: false,
1660                    method: 'pkg-config',
1661                    disabler: true),
1662         dependency('xenevtchn', required: false,
1663                    method: 'pkg-config',
1664                    disabler: true),
1665         dependency('xendevicemodel', required: false,
1666                    method: 'pkg-config',
1667                    disabler: true),
1668         # optional, no "disabler: true"
1669         dependency('xentoolcore', required: false,
1670                    method: 'pkg-config')])
1671     if xen_pc.found()
1672       xen = xen_pc
1673     endif
1674   endif
1675   if not xen.found()
1676     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
1677     xen_libs = {
1678       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1679       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1680       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1681       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1682       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1683     }
1684     xen_deps = {}
1685     foreach ver: xen_tests
1686       # cache the various library tests to avoid polluting the logs
1687       xen_test_deps = []
1688       foreach l: xen_libs[ver]
1689         if l not in xen_deps
1690           xen_deps += { l: cc.find_library(l, required: false) }
1691         endif
1692         xen_test_deps += xen_deps[l]
1693       endforeach
1694
1695       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1696       xen_version = ver.split('.')
1697       xen_ctrl_version = xen_version[0] + \
1698         ('0' + xen_version[1]).substring(-2) + \
1699         ('0' + xen_version[2]).substring(-2)
1700       if cc.links(files('scripts/xen-detect.c'),
1701                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1702                   dependencies: xen_test_deps)
1703         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1704         break
1705       endif
1706     endforeach
1707   endif
1708   if xen.found()
1709     accelerators += 'CONFIG_XEN'
1710   elif get_option('xen').enabled()
1711     error('could not compile and link Xen test program')
1712   endif
1713 endif
1714 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1715   .require(xen.found(),
1716            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1717   .require(targetos == 'linux',
1718            error_message: 'Xen PCI passthrough not available on this platform') \
1719   .require(cpu == 'x86'  or cpu == 'x86_64',
1720            error_message: 'Xen PCI passthrough not available on this platform') \
1721   .allowed()
1722
1723
1724 cacard = not_found
1725 if not get_option('smartcard').auto() or have_system
1726   cacard = dependency('libcacard', required: get_option('smartcard'),
1727                       version: '>=2.5.1', method: 'pkg-config')
1728 endif
1729 u2f = not_found
1730 if have_system
1731   u2f = dependency('u2f-emu', required: get_option('u2f'),
1732                    method: 'pkg-config')
1733 endif
1734 canokey = not_found
1735 if have_system
1736   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1737                    method: 'pkg-config')
1738 endif
1739 usbredir = not_found
1740 if not get_option('usb_redir').auto() or have_system
1741   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1742                         version: '>=0.6', method: 'pkg-config')
1743 endif
1744 libusb = not_found
1745 if not get_option('libusb').auto() or have_system
1746   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1747                       version: '>=1.0.13', method: 'pkg-config')
1748 endif
1749
1750 libpmem = not_found
1751 if not get_option('libpmem').auto() or have_system
1752   libpmem = dependency('libpmem', required: get_option('libpmem'),
1753                        method: 'pkg-config')
1754 endif
1755 libdaxctl = not_found
1756 if not get_option('libdaxctl').auto() or have_system
1757   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1758                          version: '>=57', method: 'pkg-config')
1759 endif
1760 tasn1 = not_found
1761 if gnutls.found()
1762   tasn1 = dependency('libtasn1',
1763                      method: 'pkg-config')
1764 endif
1765 keyutils = not_found
1766 if get_option('keyring').enabled()
1767   keyutils = dependency('libkeyutils', required: false, method: 'pkg-config')
1768 endif
1769
1770 has_gettid = cc.has_function('gettid')
1771
1772 # libselinux
1773 selinux = dependency('libselinux',
1774                      required: get_option('selinux'),
1775                      method: 'pkg-config')
1776
1777 # Malloc tests
1778
1779 malloc = []
1780 if get_option('malloc') == 'system'
1781   has_malloc_trim = \
1782     get_option('malloc_trim').allowed() and \
1783     cc.has_function('malloc_trim', prefix: '#include <malloc.h>')
1784 else
1785   has_malloc_trim = false
1786   malloc = cc.find_library(get_option('malloc'), required: true)
1787 endif
1788 if not has_malloc_trim and get_option('malloc_trim').enabled()
1789   if get_option('malloc') == 'system'
1790     error('malloc_trim not available on this platform.')
1791   else
1792     error('malloc_trim not available with non-libc memory allocator')
1793   endif
1794 endif
1795
1796 gnu_source_prefix = '''
1797   #ifndef _GNU_SOURCE
1798   #define _GNU_SOURCE
1799   #endif
1800 '''
1801
1802 # Check whether the glibc provides STATX_BASIC_STATS
1803
1804 has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_source_prefix)
1805
1806 # Check whether statx() provides mount ID information
1807
1808 has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
1809
1810 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1811   .require(targetos == 'linux',
1812            error_message: 'vhost_user_blk_server requires linux') \
1813   .require(have_vhost_user,
1814            error_message: 'vhost_user_blk_server requires vhost-user support') \
1815   .disable_auto_if(not have_tools and not have_system) \
1816   .allowed()
1817
1818 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1819   error('Cannot enable fuse-lseek while fuse is disabled')
1820 endif
1821
1822 fuse = dependency('fuse3', required: get_option('fuse'),
1823                   version: '>=3.1', method: 'pkg-config')
1824
1825 fuse_lseek = not_found
1826 if get_option('fuse_lseek').allowed()
1827   if fuse.version().version_compare('>=3.8')
1828     # Dummy dependency
1829     fuse_lseek = declare_dependency()
1830   elif get_option('fuse_lseek').enabled()
1831     if fuse.found()
1832       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1833     else
1834       error('fuse-lseek requires libfuse, which was not found')
1835     endif
1836   endif
1837 endif
1838
1839 have_libvduse = (targetos == 'linux')
1840 if get_option('libvduse').enabled()
1841     if targetos != 'linux'
1842         error('libvduse requires linux')
1843     endif
1844 elif get_option('libvduse').disabled()
1845     have_libvduse = false
1846 endif
1847
1848 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1849 if get_option('vduse_blk_export').enabled()
1850     if targetos != 'linux'
1851         error('vduse_blk_export requires linux')
1852     elif not have_libvduse
1853         error('vduse_blk_export requires libvduse support')
1854     endif
1855 elif get_option('vduse_blk_export').disabled()
1856     have_vduse_blk_export = false
1857 endif
1858
1859 # libbpf
1860 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1861 if libbpf.found() and not cc.links('''
1862    #include <bpf/libbpf.h>
1863    int main(void)
1864    {
1865      bpf_object__destroy_skeleton(NULL);
1866      return 0;
1867    }''', dependencies: libbpf)
1868   libbpf = not_found
1869   if get_option('bpf').enabled()
1870     error('libbpf skeleton test failed')
1871   else
1872     warning('libbpf skeleton test failed, disabling')
1873   endif
1874 endif
1875
1876 # libdw
1877 libdw = not_found
1878 if not get_option('libdw').auto() or \
1879         (not get_option('prefer_static') and (have_system or have_user))
1880     libdw = dependency('libdw',
1881                        method: 'pkg-config',
1882                        required: get_option('libdw'))
1883 endif
1884
1885 #################
1886 # config-host.h #
1887 #################
1888
1889 audio_drivers_selected = []
1890 if have_system
1891   audio_drivers_available = {
1892     'alsa': alsa.found(),
1893     'coreaudio': coreaudio.found(),
1894     'dsound': dsound.found(),
1895     'jack': jack.found(),
1896     'oss': oss.found(),
1897     'pa': pulse.found(),
1898     'pipewire': pipewire.found(),
1899     'sdl': sdl.found(),
1900     'sndio': sndio.found(),
1901   }
1902   foreach k, v: audio_drivers_available
1903     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1904   endforeach
1905
1906   # Default to native drivers first, OSS second, SDL third
1907   audio_drivers_priority = \
1908     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1909     (targetos == 'linux' ? [] : [ 'sdl' ])
1910   audio_drivers_default = []
1911   foreach k: audio_drivers_priority
1912     if audio_drivers_available[k]
1913       audio_drivers_default += k
1914     endif
1915   endforeach
1916
1917   foreach k: get_option('audio_drv_list')
1918     if k == 'default'
1919       audio_drivers_selected += audio_drivers_default
1920     elif not audio_drivers_available[k]
1921       error('Audio driver "@0@" not available.'.format(k))
1922     else
1923       audio_drivers_selected += k
1924     endif
1925   endforeach
1926 endif
1927 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1928                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1929
1930 if get_option('cfi')
1931   cfi_flags=[]
1932   # Check for dependency on LTO
1933   if not get_option('b_lto')
1934     error('Selected Control-Flow Integrity but LTO is disabled')
1935   endif
1936   if enable_modules
1937     error('Selected Control-Flow Integrity is not compatible with modules')
1938   endif
1939   # Check for cfi flags. CFI requires LTO so we can't use
1940   # get_supported_arguments, but need a more complex "compiles" which allows
1941   # custom arguments
1942   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1943                  args: ['-flto', '-fsanitize=cfi-icall'] )
1944     cfi_flags += '-fsanitize=cfi-icall'
1945   else
1946     error('-fsanitize=cfi-icall is not supported by the compiler')
1947   endif
1948   if cc.compiles('int main () { return 0; }',
1949                  name: '-fsanitize-cfi-icall-generalize-pointers',
1950                  args: ['-flto', '-fsanitize=cfi-icall',
1951                         '-fsanitize-cfi-icall-generalize-pointers'] )
1952     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1953   else
1954     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1955   endif
1956   if get_option('cfi_debug')
1957     if cc.compiles('int main () { return 0; }',
1958                    name: '-fno-sanitize-trap=cfi-icall',
1959                    args: ['-flto', '-fsanitize=cfi-icall',
1960                           '-fno-sanitize-trap=cfi-icall'] )
1961       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1962     else
1963       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1964     endif
1965   endif
1966   add_global_arguments(cfi_flags, native: false, language: all_languages)
1967   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
1968 endif
1969
1970 have_host_block_device = (targetos != 'darwin' or
1971     cc.has_header('IOKit/storage/IOMedia.h'))
1972
1973 dbus_display = get_option('dbus_display') \
1974   .require(gio.version().version_compare('>=2.64'),
1975            error_message: '-display dbus requires glib>=2.64') \
1976   .require(gdbus_codegen.found(),
1977            error_message: gdbus_codegen_error.format('-display dbus')) \
1978   .allowed()
1979
1980 have_virtfs = get_option('virtfs') \
1981     .require(targetos == 'linux' or targetos == 'darwin',
1982              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
1983     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
1984              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
1985     .require(targetos == 'darwin' or libattr.found(),
1986              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
1987     .disable_auto_if(not have_tools and not have_system) \
1988     .allowed()
1989
1990 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
1991     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
1992     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
1993     .disable_auto_if(not have_tools) \
1994     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
1995     .allowed()
1996
1997 if get_option('block_drv_ro_whitelist') == ''
1998   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
1999 else
2000   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
2001         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2002 endif
2003 if get_option('block_drv_rw_whitelist') == ''
2004   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2005 else
2006   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2007         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2008 endif
2009
2010 foreach k : get_option('trace_backends')
2011   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2012 endforeach
2013 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2014 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2015 if iasl.found()
2016   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2017 endif
2018 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2019 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2020 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2021 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2022 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2023
2024 qemu_firmwarepath = ''
2025 foreach k : get_option('qemu_firmwarepath')
2026   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2027 endforeach
2028 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2029
2030 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2031 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2032 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2033 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2034 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2035 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2036
2037 if enable_modules
2038   config_host_data.set('CONFIG_STAMP', run_command(
2039       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2040       meson.project_version(), get_option('pkgversion'), '--',
2041       meson.current_source_dir() / 'configure',
2042       capture: true, check: true).stdout().strip())
2043 endif
2044
2045 have_slirp_smbd = get_option('slirp_smbd') \
2046   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2047   .allowed()
2048 if have_slirp_smbd
2049   smbd_path = get_option('smbd')
2050   if smbd_path == ''
2051     smbd_path = (targetos == 'solaris' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2052   endif
2053   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2054 endif
2055
2056 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2057
2058 if get_option('module_upgrades') and not enable_modules
2059   error('Cannot enable module-upgrades as modules are not enabled')
2060 endif
2061 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2062
2063 config_host_data.set('CONFIG_ATTR', libattr.found())
2064 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2065 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2066 config_host_data.set('CONFIG_BSD', targetos in bsd_oses)
2067 config_host_data.set('CONFIG_COCOA', cocoa.found())
2068 config_host_data.set('CONFIG_DARWIN', targetos == 'darwin')
2069 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2070 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2071 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2072 config_host_data.set('CONFIG_LINUX', targetos == 'linux')
2073 config_host_data.set('CONFIG_POSIX', targetos != 'windows')
2074 config_host_data.set('CONFIG_WIN32', targetos == 'windows')
2075 config_host_data.set('CONFIG_LZO', lzo.found())
2076 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
2077 config_host_data.set('CONFIG_BLKIO', blkio.found())
2078 if blkio.found()
2079   config_host_data.set('CONFIG_BLKIO_VHOST_VDPA_FD',
2080                        blkio.version().version_compare('>=1.3.0'))
2081 endif
2082 config_host_data.set('CONFIG_CURL', curl.found())
2083 config_host_data.set('CONFIG_CURSES', curses.found())
2084 config_host_data.set('CONFIG_GBM', gbm.found())
2085 config_host_data.set('CONFIG_GIO', gio.found())
2086 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2087 if glusterfs.found()
2088   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2089   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2090   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2091   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2092   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2093   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2094 endif
2095 config_host_data.set('CONFIG_GTK', gtk.found())
2096 config_host_data.set('CONFIG_VTE', vte.found())
2097 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2098 config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
2099 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2100 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2101 config_host_data.set('CONFIG_EBPF', libbpf.found())
2102 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2103 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2104 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2105 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2106 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2107 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2108 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2109 config_host_data.set('CONFIG_MODULES', enable_modules)
2110 config_host_data.set('CONFIG_NUMA', numa.found())
2111 if numa.found()
2112   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2113                        cc.has_function('numa_has_preferred_many',
2114                                        dependencies: numa))
2115 endif
2116 config_host_data.set('CONFIG_OPENGL', opengl.found())
2117 config_host_data.set('CONFIG_PLUGIN', get_option('plugins'))
2118 config_host_data.set('CONFIG_RBD', rbd.found())
2119 config_host_data.set('CONFIG_RDMA', rdma.found())
2120 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2121 config_host_data.set('CONFIG_SDL', sdl.found())
2122 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2123 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2124 if seccomp.found()
2125   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2126 endif
2127 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2128 config_host_data.set('CONFIG_SOLARIS', targetos == 'sunos')
2129 if get_option('tcg').allowed()
2130   config_host_data.set('CONFIG_TCG', 1)
2131   config_host_data.set('CONFIG_TCG_INTERPRETER', tcg_arch == 'tci')
2132 endif
2133 config_host_data.set('CONFIG_TPM', have_tpm)
2134 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2135 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2136 config_host_data.set('CONFIG_VDE', vde.found())
2137 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2138 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2139 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2140 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2141 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2142 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2143 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2144 config_host_data.set('CONFIG_VMNET', vmnet.found())
2145 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2146 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2147 config_host_data.set('CONFIG_PNG', png.found())
2148 config_host_data.set('CONFIG_VNC', vnc.found())
2149 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2150 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2151 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2152 config_host_data.set('CONFIG_VTE', vte.found())
2153 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2154 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2155 config_host_data.set('CONFIG_GETTID', has_gettid)
2156 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2157 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2158 config_host_data.set('CONFIG_TASN1', tasn1.found())
2159 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2160 config_host_data.set('CONFIG_NETTLE', nettle.found())
2161 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2162 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2163 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2164 config_host_data.set('CONFIG_STATX', has_statx)
2165 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2166 config_host_data.set('CONFIG_ZSTD', zstd.found())
2167 config_host_data.set('CONFIG_FUSE', fuse.found())
2168 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2169 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2170 if spice_protocol.found()
2171 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2172 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2173 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2174 endif
2175 config_host_data.set('CONFIG_SPICE', spice.found())
2176 config_host_data.set('CONFIG_X11', x11.found())
2177 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2178 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2179 config_host_data.set('CONFIG_SELINUX', selinux.found())
2180 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2181 config_host_data.set('CONFIG_LIBDW', libdw.found())
2182 if xen.found()
2183   # protect from xen.version() having less than three components
2184   xen_version = xen.version().split('.') + ['0', '0']
2185   xen_ctrl_version = xen_version[0] + \
2186     ('0' + xen_version[1]).substring(-2) + \
2187     ('0' + xen_version[2]).substring(-2)
2188   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2189 endif
2190 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2191 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2192 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2193 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2194
2195 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2196 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2197
2198 have_coroutine_pool = get_option('coroutine_pool')
2199 if get_option('debug_stack_usage') and have_coroutine_pool
2200   message('Disabling coroutine pool to measure stack usage')
2201   have_coroutine_pool = false
2202 endif
2203 config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2204 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2205 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2206 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2207 config_host_data.set('CONFIG_DEBUG_TCG', get_option('debug_tcg'))
2208 config_host_data.set('CONFIG_GPROF', get_option('gprof'))
2209 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2210 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2211 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2212
2213 # has_header
2214 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2215 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2216 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2217 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2218 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2219 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2220 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2221 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2222 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2223 if targetos == 'windows'
2224   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2225 endif
2226
2227 # has_function
2228 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2229 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2230 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2231 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2232 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2233 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2234 config_host_data.set('CONFIG_GETCPU', cc.has_function('getcpu', prefix: gnu_source_prefix))
2235 config_host_data.set('CONFIG_SCHED_GETCPU', cc.has_function('sched_getcpu', prefix: '#include <sched.h>'))
2236 # Note that we need to specify prefix: here to avoid incorrectly
2237 # thinking that Windows has posix_memalign()
2238 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2239 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2240 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2241 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2242 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2243 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2244 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2245 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2246 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2247 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2248 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2249 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2250 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2251 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2252 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2253 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2254 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2255 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2256 if rbd.found()
2257   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2258                        cc.has_function('rbd_namespace_exists',
2259                                        dependencies: rbd,
2260                                        prefix: '#include <rbd/librbd.h>'))
2261 endif
2262 if rdma.found()
2263   config_host_data.set('HAVE_IBV_ADVISE_MR',
2264                        cc.has_function('ibv_advise_mr',
2265                                        dependencies: rdma,
2266                                        prefix: '#include <infiniband/verbs.h>'))
2267 endif
2268
2269 have_asan_fiber = false
2270 if get_option('sanitizers') and \
2271    not cc.has_function('__sanitizer_start_switch_fiber',
2272                          args: '-fsanitize=address',
2273                          prefix: '#include <sanitizer/asan_interface.h>')
2274   warning('Missing ASAN due to missing fiber annotation interface')
2275   warning('Without code annotation, the report may be inferior.')
2276 else
2277   have_asan_fiber = true
2278 endif
2279 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2280
2281 # has_header_symbol
2282 config_host_data.set('CONFIG_BLKZONED',
2283                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2284 config_host_data.set('CONFIG_EPOLL_CREATE1',
2285                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2286 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2287                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2288                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2289 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2290                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2291 config_host_data.set('CONFIG_FIEMAP',
2292                      cc.has_header('linux/fiemap.h') and
2293                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2294 config_host_data.set('CONFIG_GETRANDOM',
2295                      cc.has_function('getrandom') and
2296                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2297 config_host_data.set('CONFIG_INOTIFY',
2298                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2299 config_host_data.set('CONFIG_INOTIFY1',
2300                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2301 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2302                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2303 config_host_data.set('CONFIG_RTNETLINK',
2304                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2305 config_host_data.set('CONFIG_SYSMACROS',
2306                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2307 config_host_data.set('HAVE_OPTRESET',
2308                      cc.has_header_symbol('getopt.h', 'optreset'))
2309 config_host_data.set('HAVE_IPPROTO_MPTCP',
2310                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2311
2312 # has_member
2313 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2314                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2315                                    prefix: '#include <signal.h>'))
2316 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2317                      cc.has_member('struct stat', 'st_atim',
2318                                    prefix: '#include <sys/stat.h>'))
2319 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2320                      cc.has_member('struct blk_zone', 'capacity',
2321                                    prefix: '#include <linux/blkzoned.h>'))
2322
2323 # has_type
2324 config_host_data.set('CONFIG_IOVEC',
2325                      cc.has_type('struct iovec',
2326                                  prefix: '#include <sys/uio.h>'))
2327 config_host_data.set('HAVE_UTMPX',
2328                      cc.has_type('struct utmpx',
2329                                  prefix: '#include <utmpx.h>'))
2330
2331 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2332   #include <sys/eventfd.h>
2333   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2334 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2335   #include <unistd.h>
2336   int main(void) {
2337   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2338   return fdatasync(0);
2339   #else
2340   #error Not supported
2341   #endif
2342   }'''))
2343
2344 has_madvise = cc.links(gnu_source_prefix + '''
2345   #include <sys/types.h>
2346   #include <sys/mman.h>
2347   #include <stddef.h>
2348   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2349 missing_madvise_proto = false
2350 if has_madvise
2351   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2352   # but forget to prototype it. In this case, has_madvise will be true (the
2353   # test program links despite a compile warning). To detect the
2354   # missing-prototype case, we try again with a definitely-bogus prototype.
2355   # This will only compile if the system headers don't provide the prototype;
2356   # otherwise the conflicting prototypes will cause a compiler error.
2357   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2358     #include <sys/types.h>
2359     #include <sys/mman.h>
2360     #include <stddef.h>
2361     extern int madvise(int);
2362     int main(void) { return madvise(0); }''')
2363 endif
2364 config_host_data.set('CONFIG_MADVISE', has_madvise)
2365 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2366
2367 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2368   #include <sys/mman.h>
2369   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2370 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2371   #include <fcntl.h>
2372   #if !defined(AT_EMPTY_PATH)
2373   # error missing definition
2374   #else
2375   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2376   #endif'''))
2377 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2378   #include <sys/mman.h>
2379   #include <stddef.h>
2380   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2381
2382 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2383   #include <pthread.h>
2384
2385   static void *f(void *p) { return NULL; }
2386   int main(void)
2387   {
2388     pthread_t thread;
2389     pthread_create(&thread, 0, f, 0);
2390     pthread_setname_np(thread, "QEMU");
2391     return 0;
2392   }''', dependencies: threads))
2393 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2394   #include <pthread.h>
2395
2396   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2397   int main(void)
2398   {
2399     pthread_t thread;
2400     pthread_create(&thread, 0, f, 0);
2401     return 0;
2402   }''', dependencies: threads))
2403 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2404   #include <pthread.h>
2405   #include <pthread_np.h>
2406
2407   static void *f(void *p) { return NULL; }
2408   int main(void)
2409   {
2410     pthread_t thread;
2411     pthread_create(&thread, 0, f, 0);
2412     pthread_set_name_np(thread, "QEMU");
2413     return 0;
2414   }''', dependencies: threads))
2415 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2416   #include <pthread.h>
2417   #include <time.h>
2418
2419   int main(void)
2420   {
2421     pthread_condattr_t attr
2422     pthread_condattr_init(&attr);
2423     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2424     return 0;
2425   }''', dependencies: threads))
2426 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2427   #include <pthread.h>
2428
2429   static void *f(void *p) { return NULL; }
2430   int main(void)
2431   {
2432     int setsize = CPU_ALLOC_SIZE(64);
2433     pthread_t thread;
2434     cpu_set_t *cpuset;
2435     pthread_create(&thread, 0, f, 0);
2436     cpuset = CPU_ALLOC(64);
2437     CPU_ZERO_S(setsize, cpuset);
2438     pthread_setaffinity_np(thread, setsize, cpuset);
2439     pthread_getaffinity_np(thread, setsize, cpuset);
2440     CPU_FREE(cpuset);
2441     return 0;
2442   }''', dependencies: threads))
2443 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2444   #include <sys/signalfd.h>
2445   #include <stddef.h>
2446   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2447 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2448   #include <unistd.h>
2449   #include <fcntl.h>
2450   #include <limits.h>
2451
2452   int main(void)
2453   {
2454     int len, fd = 0;
2455     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2456     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2457     return 0;
2458   }'''))
2459
2460 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2461   #include <sys/mman.h>
2462   int main(void) {
2463     return mlockall(MCL_FUTURE);
2464   }'''))
2465
2466 have_l2tpv3 = false
2467 if get_option('l2tpv3').allowed() and have_system
2468   have_l2tpv3 = cc.has_type('struct mmsghdr',
2469     prefix: gnu_source_prefix + '''
2470       #include <sys/socket.h>
2471       #include <linux/ip.h>''')
2472 endif
2473 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2474
2475 have_netmap = false
2476 if get_option('netmap').allowed() and have_system
2477   have_netmap = cc.compiles('''
2478     #include <inttypes.h>
2479     #include <net/if.h>
2480     #include <net/netmap.h>
2481     #include <net/netmap_user.h>
2482     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2483     #error
2484     #endif
2485     int main(void) { return 0; }''')
2486   if not have_netmap and get_option('netmap').enabled()
2487     error('Netmap headers not available')
2488   endif
2489 endif
2490 config_host_data.set('CONFIG_NETMAP', have_netmap)
2491
2492 # Work around a system header bug with some kernel/XFS header
2493 # versions where they both try to define 'struct fsxattr':
2494 # xfs headers will not try to redefine structs from linux headers
2495 # if this macro is set.
2496 config_host_data.set('HAVE_FSXATTR', cc.links('''
2497   #include <linux/fs.h>
2498   struct fsxattr foo;
2499   int main(void) {
2500     return 0;
2501   }'''))
2502
2503 # Some versions of Mac OS X incorrectly define SIZE_MAX
2504 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2505     #include <stdint.h>
2506     #include <stdio.h>
2507     int main(void) {
2508         return printf("%zu", SIZE_MAX);
2509     }''', args: ['-Werror']))
2510
2511 # See if 64-bit atomic operations are supported.
2512 # Note that without __atomic builtins, we can only
2513 # assume atomic loads/stores max at pointer size.
2514 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2515   #include <stdint.h>
2516   int main(void)
2517   {
2518     uint64_t x = 0, y = 0;
2519     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2520     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2521     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2522     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2523     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2524     return 0;
2525   }'''))
2526
2527 has_int128_type = cc.compiles('''
2528   __int128_t a;
2529   __uint128_t b;
2530   int main(void) { b = a; }''')
2531 config_host_data.set('CONFIG_INT128_TYPE', has_int128_type)
2532
2533 has_int128 = has_int128_type and cc.links('''
2534   __int128_t a;
2535   __uint128_t b;
2536   int main (void) {
2537     a = a + b;
2538     b = a * b;
2539     a = a * a;
2540     return 0;
2541   }''')
2542 config_host_data.set('CONFIG_INT128', has_int128)
2543
2544 if has_int128_type
2545   # "do we have 128-bit atomics which are handled inline and specifically not
2546   # via libatomic". The reason we can't use libatomic is documented in the
2547   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2548   # We only care about these operations on 16-byte aligned pointers, so
2549   # force 16-byte alignment of the pointer, which may be greater than
2550   # __alignof(unsigned __int128) for the host.
2551   atomic_test_128 = '''
2552     int main(int ac, char **av) {
2553       __uint128_t *p = __builtin_assume_aligned(av[ac - 1], 16);
2554       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2555       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2556       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2557       return 0;
2558     }'''
2559   has_atomic128 = cc.links(atomic_test_128)
2560
2561   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2562
2563   if not has_atomic128
2564     # Even with __builtin_assume_aligned, the above test may have failed
2565     # without optimization enabled.  Try again with optimizations locally
2566     # enabled for the function.  See
2567     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2568     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2569     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2570
2571     if not has_atomic128_opt
2572       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2573         int main(void)
2574         {
2575           __uint128_t x = 0, y = 0;
2576           __sync_val_compare_and_swap_16(&x, y, x);
2577           return 0;
2578         }
2579       '''))
2580     endif
2581   endif
2582 endif
2583
2584 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2585   #include <sys/auxv.h>
2586   int main(void) {
2587     return getauxval(AT_HWCAP) == 0;
2588   }'''))
2589
2590 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2591   #include <linux/usbdevice_fs.h>
2592
2593   #ifndef USBDEVFS_GET_CAPABILITIES
2594   #error "USBDEVFS_GET_CAPABILITIES undefined"
2595   #endif
2596
2597   #ifndef USBDEVFS_DISCONNECT_CLAIM
2598   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2599   #endif
2600
2601   int main(void) { return 0; }'''))
2602
2603 have_keyring = get_option('keyring') \
2604   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2605   .require(cc.compiles('''
2606     #include <errno.h>
2607     #include <asm/unistd.h>
2608     #include <linux/keyctl.h>
2609     #include <sys/syscall.h>
2610     #include <unistd.h>
2611     int main(void) {
2612         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2613     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2614 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2615
2616 have_cpuid_h = cc.links('''
2617   #include <cpuid.h>
2618   int main(void) {
2619     unsigned a, b, c, d;
2620     unsigned max = __get_cpuid_max(0, 0);
2621
2622     if (max >= 1) {
2623         __cpuid(1, a, b, c, d);
2624     }
2625
2626     if (max >= 7) {
2627         __cpuid_count(7, 0, a, b, c, d);
2628     }
2629
2630     return 0;
2631   }''')
2632 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2633
2634 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2635   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2636   .require(cc.links('''
2637     #include <cpuid.h>
2638     #include <immintrin.h>
2639     static int __attribute__((target("avx2"))) bar(void *a) {
2640       __m256i x = *(__m256i *)a;
2641       return _mm256_testz_si256(x, x);
2642     }
2643     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2644   '''), error_message: 'AVX2 not available').allowed())
2645
2646 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2647   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2648   .require(cc.links('''
2649     #include <cpuid.h>
2650     #include <immintrin.h>
2651     static int __attribute__((target("avx512f"))) bar(void *a) {
2652       __m512i x = *(__m512i *)a;
2653       return _mm512_test_epi64_mask(x, x);
2654     }
2655     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2656   '''), error_message: 'AVX512F not available').allowed())
2657
2658 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2659   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2660   .require(cc.links('''
2661     #include <cpuid.h>
2662     #include <immintrin.h>
2663     static int __attribute__((target("avx512bw"))) bar(void *a) {
2664       __m512i *x = a;
2665       __m512i res= _mm512_abs_epi8(*x);
2666       return res[1];
2667     }
2668     int main(int argc, char *argv[]) { return bar(argv[0]); }
2669   '''), error_message: 'AVX512BW not available').allowed())
2670
2671 # For both AArch64 and AArch32, detect if builtins are available.
2672 config_host_data.set('CONFIG_ARM_AES_BUILTIN', cc.compiles('''
2673     #include <arm_neon.h>
2674     #ifndef __ARM_FEATURE_AES
2675     __attribute__((target("+crypto")))
2676     #endif
2677     void foo(uint8x16_t *p) { *p = vaesmcq_u8(*p); }
2678   '''))
2679
2680 have_pvrdma = get_option('pvrdma') \
2681   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2682   .require(cc.compiles(gnu_source_prefix + '''
2683     #include <sys/mman.h>
2684     int main(void)
2685     {
2686       char buf = 0;
2687       void *addr = &buf;
2688       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2689
2690       return 0;
2691     }'''), error_message: 'PVRDMA requires mremap').allowed()
2692
2693 if have_pvrdma
2694   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2695     #include <infiniband/verbs.h>
2696     int main(void)
2697     {
2698       struct ibv_mr *mr;
2699       struct ibv_pd *pd = NULL;
2700       size_t length = 10;
2701       uint64_t iova = 0;
2702       int access = 0;
2703       void *addr = NULL;
2704
2705       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2706       ibv_dereg_mr(mr);
2707       return 0;
2708     }'''))
2709 endif
2710
2711 if get_option('membarrier').disabled()
2712   have_membarrier = false
2713 elif targetos == 'windows'
2714   have_membarrier = true
2715 elif targetos == 'linux'
2716   have_membarrier = cc.compiles('''
2717     #include <linux/membarrier.h>
2718     #include <sys/syscall.h>
2719     #include <unistd.h>
2720     #include <stdlib.h>
2721     int main(void) {
2722         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2723         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2724         exit(0);
2725     }''')
2726 endif
2727 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2728   .require(have_membarrier, error_message: 'membarrier system call not available') \
2729   .allowed())
2730
2731 have_afalg = get_option('crypto_afalg') \
2732   .require(cc.compiles(gnu_source_prefix + '''
2733     #include <errno.h>
2734     #include <sys/types.h>
2735     #include <sys/socket.h>
2736     #include <linux/if_alg.h>
2737     int main(void) {
2738       int sock;
2739       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2740       return sock;
2741     }
2742   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2743 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2744
2745 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2746   'linux/vm_sockets.h', 'AF_VSOCK',
2747   prefix: '#include <sys/socket.h>',
2748 ))
2749
2750 have_vss = false
2751 have_vss_sdk = false # old xp/2003 SDK
2752 if targetos == 'windows' and 'cpp' in all_languages
2753   have_vss = cxx.compiles('''
2754     #define __MIDL_user_allocate_free_DEFINED__
2755     #include <vss.h>
2756     int main(void) { return VSS_CTX_BACKUP; }''')
2757   have_vss_sdk = cxx.has_header('vscoordint.h')
2758 endif
2759 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2760
2761 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2762 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2763 if targetos == 'windows'
2764   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2765     #include <stdio.h>
2766     int main(void) {
2767       _lock_file(NULL);
2768       _unlock_file(NULL);
2769       return 0;
2770     }''', name: '_lock_file and _unlock_file'))
2771 endif
2772
2773 if targetos == 'windows'
2774   mingw_has_setjmp_longjmp = cc.links('''
2775     #include <setjmp.h>
2776     int main(void) {
2777       /*
2778        * These functions are not available in setjmp header, but may be
2779        * available at link time, from libmingwex.a.
2780        */
2781       extern int __mingw_setjmp(jmp_buf);
2782       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2783       jmp_buf env;
2784       __mingw_setjmp(env);
2785       __mingw_longjmp(env, 0);
2786     }
2787   ''', name: 'mingw setjmp and longjmp')
2788
2789   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2790     error('mingw must provide setjmp/longjmp for windows-arm64')
2791   endif
2792 endif
2793
2794 ########################
2795 # Target configuration #
2796 ########################
2797
2798 minikconf = find_program('scripts/minikconf.py')
2799 config_targetos = {
2800   (targetos == 'windows' ? 'CONFIG_WIN32' : 'CONFIG_POSIX'): 'y'
2801 }
2802 if targetos == 'darwin'
2803   config_targetos += {'CONFIG_DARWIN': 'y'}
2804 elif targetos == 'linux'
2805   config_targetos += {'CONFIG_LINUX': 'y'}
2806 endif
2807 if targetos in bsd_oses
2808   config_targetos += {'CONFIG_BSD': 'y'}
2809 endif
2810
2811 config_all = {}
2812 config_all_devices = {}
2813 config_all_disas = {}
2814 config_devices_mak_list = []
2815 config_devices_h = {}
2816 config_target_h = {}
2817 config_target_mak = {}
2818
2819 disassemblers = {
2820   'alpha' : ['CONFIG_ALPHA_DIS'],
2821   'avr' : ['CONFIG_AVR_DIS'],
2822   'cris' : ['CONFIG_CRIS_DIS'],
2823   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2824   'hppa' : ['CONFIG_HPPA_DIS'],
2825   'i386' : ['CONFIG_I386_DIS'],
2826   'x86_64' : ['CONFIG_I386_DIS'],
2827   'm68k' : ['CONFIG_M68K_DIS'],
2828   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2829   'mips' : ['CONFIG_MIPS_DIS'],
2830   'nios2' : ['CONFIG_NIOS2_DIS'],
2831   'or1k' : ['CONFIG_OPENRISC_DIS'],
2832   'ppc' : ['CONFIG_PPC_DIS'],
2833   'riscv' : ['CONFIG_RISCV_DIS'],
2834   'rx' : ['CONFIG_RX_DIS'],
2835   's390' : ['CONFIG_S390_DIS'],
2836   'sh4' : ['CONFIG_SH4_DIS'],
2837   'sparc' : ['CONFIG_SPARC_DIS'],
2838   'xtensa' : ['CONFIG_XTENSA_DIS'],
2839   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2840 }
2841
2842 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2843 host_kconfig = \
2844   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2845   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2846   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2847   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2848   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2849   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2850   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2851   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2852   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2853   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2854   (targetos == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
2855   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2856   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2857   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2858
2859 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2860
2861 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2862 actual_target_dirs = []
2863 fdt_required = []
2864 foreach target : target_dirs
2865   config_target = { 'TARGET_NAME': target.split('-')[0] }
2866   if target.endswith('linux-user')
2867     if targetos != 'linux'
2868       if default_targets
2869         continue
2870       endif
2871       error('Target @0@ is only available on a Linux host'.format(target))
2872     endif
2873     config_target += { 'CONFIG_LINUX_USER': 'y' }
2874   elif target.endswith('bsd-user')
2875     if targetos not in bsd_oses
2876       if default_targets
2877         continue
2878       endif
2879       error('Target @0@ is only available on a BSD host'.format(target))
2880     endif
2881     config_target += { 'CONFIG_BSD_USER': 'y' }
2882   elif target.endswith('softmmu')
2883     config_target += { 'CONFIG_SYSTEM_ONLY': 'y' }
2884     config_target += { 'CONFIG_SOFTMMU': 'y' }
2885   endif
2886   if target.endswith('-user')
2887     config_target += {
2888       'CONFIG_USER_ONLY': 'y',
2889       'CONFIG_QEMU_INTERP_PREFIX':
2890         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2891     }
2892   endif
2893
2894   accel_kconfig = []
2895   foreach sym: accelerators
2896     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2897       config_target += { sym: 'y' }
2898       config_all += { sym: 'y' }
2899       if target in modular_tcg
2900         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2901       else
2902         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2903       endif
2904       accel_kconfig += [ sym + '=y' ]
2905     endif
2906   endforeach
2907   if accel_kconfig.length() == 0
2908     if default_targets
2909       continue
2910     endif
2911     error('No accelerator available for target @0@'.format(target))
2912   endif
2913
2914   actual_target_dirs += target
2915   config_target += keyval.load('configs/targets' / target + '.mak')
2916   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2917
2918   if 'TARGET_NEED_FDT' in config_target
2919     fdt_required += target
2920   endif
2921
2922   # Add default keys
2923   if 'TARGET_BASE_ARCH' not in config_target
2924     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2925   endif
2926   if 'TARGET_ABI_DIR' not in config_target
2927     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2928   endif
2929   if 'TARGET_BIG_ENDIAN' not in config_target
2930     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2931   endif
2932
2933   foreach k, v: disassemblers
2934     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2935       foreach sym: v
2936         config_target += { sym: 'y' }
2937         config_all_disas += { sym: 'y' }
2938       endforeach
2939     endif
2940   endforeach
2941
2942   config_target_data = configuration_data()
2943   foreach k, v: config_target
2944     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2945       # do nothing
2946     elif ignored.contains(k)
2947       # do nothing
2948     elif k == 'TARGET_BASE_ARCH'
2949       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2950       # not used to select files from sourcesets.
2951       config_target_data.set('TARGET_' + v.to_upper(), 1)
2952     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2953       config_target_data.set_quoted(k, v)
2954     elif v == 'y'
2955       config_target_data.set(k, 1)
2956     elif v == 'n'
2957       config_target_data.set(k, 0)
2958     else
2959       config_target_data.set(k, v)
2960     endif
2961   endforeach
2962   config_target_data.set('QEMU_ARCH',
2963                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2964   config_target_h += {target: configure_file(output: target + '-config-target.h',
2965                                                configuration: config_target_data)}
2966
2967   if target.endswith('-softmmu')
2968     config_input = meson.get_external_property(target, 'default')
2969     config_devices_mak = target + '-config-devices.mak'
2970     config_devices_mak = configure_file(
2971       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2972       output: config_devices_mak,
2973       depfile: config_devices_mak + '.d',
2974       capture: true,
2975       command: [minikconf,
2976                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2977                 config_devices_mak, '@DEPFILE@', '@INPUT@',
2978                 host_kconfig, accel_kconfig,
2979                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2980
2981     config_devices_data = configuration_data()
2982     config_devices = keyval.load(config_devices_mak)
2983     foreach k, v: config_devices
2984       config_devices_data.set(k, 1)
2985     endforeach
2986     config_devices_mak_list += config_devices_mak
2987     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2988                                                 configuration: config_devices_data)}
2989     config_target += config_devices
2990     config_all_devices += config_devices
2991   endif
2992   config_target_mak += {target: config_target}
2993 endforeach
2994 target_dirs = actual_target_dirs
2995
2996 # This configuration is used to build files that are shared by
2997 # multiple binaries, and then extracted out of the "common"
2998 # static_library target.
2999 #
3000 # We do not use all_sources()/all_dependencies(), because it would
3001 # build literally all source files, including devices only used by
3002 # targets that are not built for this compilation.  The CONFIG_ALL
3003 # pseudo symbol replaces it.
3004
3005 config_all += config_all_devices
3006 config_all += config_targetos
3007 config_all += config_all_disas
3008 config_all += {
3009   'CONFIG_XEN': xen.found(),
3010   'CONFIG_SYSTEM_ONLY': have_system,
3011   'CONFIG_USER_ONLY': have_user,
3012   'CONFIG_ALL': true,
3013 }
3014
3015 target_configs_h = []
3016 foreach target: target_dirs
3017   target_configs_h += config_target_h[target]
3018   target_configs_h += config_devices_h.get(target, [])
3019 endforeach
3020 genh += custom_target('config-poison.h',
3021                       input: [target_configs_h],
3022                       output: 'config-poison.h',
3023                       capture: true,
3024                       command: [find_program('scripts/make-config-poison.sh'),
3025                                 target_configs_h])
3026
3027 ##############
3028 # Submodules #
3029 ##############
3030
3031 capstone = not_found
3032 if not get_option('capstone').auto() or have_system or have_user
3033   capstone = dependency('capstone', version: '>=3.0.5',
3034                         method: 'pkg-config',
3035                         required: get_option('capstone'))
3036
3037   # Some versions of capstone have broken pkg-config file
3038   # that reports a wrong -I path, causing the #include to
3039   # fail later. If the system has such a broken version
3040   # do not use it.
3041   if capstone.found() and not cc.compiles('#include <capstone.h>',
3042                                           dependencies: [capstone])
3043     capstone = not_found
3044     if get_option('capstone').enabled()
3045       error('capstone requested, but it does not appear to work')
3046     endif
3047   endif
3048 endif
3049
3050 libvfio_user_dep = not_found
3051 if have_system and vfio_user_server_allowed
3052   libvfio_user_proj = subproject('libvfio-user', required: true)
3053   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3054 endif
3055
3056 fdt = not_found
3057 fdt_opt = get_option('fdt')
3058 if fdt_required.length() > 0 or fdt_opt == 'enabled'
3059   if fdt_opt == 'disabled'
3060     error('fdt disabled but required by targets ' + ', '.join(fdt_required))
3061   endif
3062
3063   if fdt_opt in ['enabled', 'auto', 'system']
3064     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3065     if fdt.found() and cc.links('''
3066        #include <libfdt.h>
3067        #include <libfdt_env.h>
3068        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3069          dependencies: fdt)
3070       fdt_opt = 'system'
3071     elif fdt_opt == 'system'
3072        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3073     else
3074       fdt_opt = 'internal'
3075       fdt = not_found
3076     endif
3077   endif
3078   if not fdt.found()
3079     assert(fdt_opt == 'internal')
3080     libfdt_proj = subproject('dtc', required: true,
3081                              default_options: ['tools=false',  'yaml=disabled',
3082                                                'python=disabled', 'default_library=static'])
3083     fdt = libfdt_proj.get_variable('libfdt_dep')
3084   endif
3085 else
3086   fdt_opt = 'disabled'
3087 endif
3088
3089 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3090 config_host_data.set('CONFIG_FDT', fdt.found())
3091 config_host_data.set('CONFIG_SLIRP', slirp.found())
3092
3093 #####################
3094 # Generated sources #
3095 #####################
3096
3097 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3098
3099 hxtool = find_program('scripts/hxtool')
3100 shaderinclude = find_program('scripts/shaderinclude.py')
3101 qapi_gen = find_program('scripts/qapi-gen.py')
3102 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3103                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3104                      meson.current_source_dir() / 'scripts/qapi/common.py',
3105                      meson.current_source_dir() / 'scripts/qapi/error.py',
3106                      meson.current_source_dir() / 'scripts/qapi/events.py',
3107                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3108                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3109                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3110                      meson.current_source_dir() / 'scripts/qapi/main.py',
3111                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3112                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3113                      meson.current_source_dir() / 'scripts/qapi/source.py',
3114                      meson.current_source_dir() / 'scripts/qapi/types.py',
3115                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3116                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3117 ]
3118
3119 tracetool = [
3120   python, files('scripts/tracetool.py'),
3121    '--backend=' + ','.join(get_option('trace_backends'))
3122 ]
3123 tracetool_depends = files(
3124   'scripts/tracetool/backend/log.py',
3125   'scripts/tracetool/backend/__init__.py',
3126   'scripts/tracetool/backend/dtrace.py',
3127   'scripts/tracetool/backend/ftrace.py',
3128   'scripts/tracetool/backend/simple.py',
3129   'scripts/tracetool/backend/syslog.py',
3130   'scripts/tracetool/backend/ust.py',
3131   'scripts/tracetool/format/ust_events_c.py',
3132   'scripts/tracetool/format/ust_events_h.py',
3133   'scripts/tracetool/format/__init__.py',
3134   'scripts/tracetool/format/d.py',
3135   'scripts/tracetool/format/simpletrace_stap.py',
3136   'scripts/tracetool/format/c.py',
3137   'scripts/tracetool/format/h.py',
3138   'scripts/tracetool/format/log_stap.py',
3139   'scripts/tracetool/format/stap.py',
3140   'scripts/tracetool/__init__.py',
3141   'scripts/tracetool/vcpu.py'
3142 )
3143
3144 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3145                     meson.current_source_dir(),
3146                     get_option('pkgversion'), meson.project_version()]
3147 qemu_version = custom_target('qemu-version.h',
3148                              output: 'qemu-version.h',
3149                              command: qemu_version_cmd,
3150                              capture: true,
3151                              build_by_default: true,
3152                              build_always_stale: true)
3153 genh += qemu_version
3154
3155 hxdep = []
3156 hx_headers = [
3157   ['qemu-options.hx', 'qemu-options.def'],
3158   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3159 ]
3160 if have_system
3161   hx_headers += [
3162     ['hmp-commands.hx', 'hmp-commands.h'],
3163     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3164   ]
3165 endif
3166 foreach d : hx_headers
3167   hxdep += custom_target(d[1],
3168                 input: files(d[0]),
3169                 output: d[1],
3170                 capture: true,
3171                 build_by_default: true, # to be removed when added to a target
3172                 command: [hxtool, '-h', '@INPUT0@'])
3173 endforeach
3174 genh += hxdep
3175
3176 ###################
3177 # Collect sources #
3178 ###################
3179
3180 authz_ss = ss.source_set()
3181 blockdev_ss = ss.source_set()
3182 block_ss = ss.source_set()
3183 chardev_ss = ss.source_set()
3184 common_ss = ss.source_set()
3185 crypto_ss = ss.source_set()
3186 hwcore_ss = ss.source_set()
3187 io_ss = ss.source_set()
3188 qmp_ss = ss.source_set()
3189 qom_ss = ss.source_set()
3190 system_ss = ss.source_set()
3191 specific_fuzz_ss = ss.source_set()
3192 specific_ss = ss.source_set()
3193 stub_ss = ss.source_set()
3194 trace_ss = ss.source_set()
3195 user_ss = ss.source_set()
3196 util_ss = ss.source_set()
3197
3198 # accel modules
3199 qtest_module_ss = ss.source_set()
3200 tcg_module_ss = ss.source_set()
3201
3202 modules = {}
3203 target_modules = {}
3204 hw_arch = {}
3205 target_arch = {}
3206 target_softmmu_arch = {}
3207 target_user_arch = {}
3208
3209 ###############
3210 # Trace files #
3211 ###############
3212
3213 # TODO: add each directory to the subdirs from its own meson.build, once
3214 # we have those
3215 trace_events_subdirs = [
3216   'crypto',
3217   'qapi',
3218   'qom',
3219   'monitor',
3220   'util',
3221   'gdbstub',
3222 ]
3223 if have_linux_user
3224   trace_events_subdirs += [ 'linux-user' ]
3225 endif
3226 if have_bsd_user
3227   trace_events_subdirs += [ 'bsd-user' ]
3228 endif
3229 if have_block
3230   trace_events_subdirs += [
3231     'authz',
3232     'block',
3233     'io',
3234     'nbd',
3235     'scsi',
3236   ]
3237 endif
3238 if have_system
3239   trace_events_subdirs += [
3240     'accel/kvm',
3241     'audio',
3242     'backends',
3243     'backends/tpm',
3244     'chardev',
3245     'ebpf',
3246     'hw/9pfs',
3247     'hw/acpi',
3248     'hw/adc',
3249     'hw/alpha',
3250     'hw/arm',
3251     'hw/audio',
3252     'hw/block',
3253     'hw/block/dataplane',
3254     'hw/char',
3255     'hw/display',
3256     'hw/dma',
3257     'hw/hyperv',
3258     'hw/i2c',
3259     'hw/i386',
3260     'hw/i386/xen',
3261     'hw/i386/kvm',
3262     'hw/ide',
3263     'hw/input',
3264     'hw/intc',
3265     'hw/isa',
3266     'hw/mem',
3267     'hw/mips',
3268     'hw/misc',
3269     'hw/misc/macio',
3270     'hw/net',
3271     'hw/net/can',
3272     'hw/nubus',
3273     'hw/nvme',
3274     'hw/nvram',
3275     'hw/pci',
3276     'hw/pci-host',
3277     'hw/ppc',
3278     'hw/rdma',
3279     'hw/rdma/vmw',
3280     'hw/rtc',
3281     'hw/s390x',
3282     'hw/scsi',
3283     'hw/sd',
3284     'hw/sh4',
3285     'hw/sparc',
3286     'hw/sparc64',
3287     'hw/ssi',
3288     'hw/timer',
3289     'hw/tpm',
3290     'hw/ufs',
3291     'hw/usb',
3292     'hw/vfio',
3293     'hw/virtio',
3294     'hw/watchdog',
3295     'hw/xen',
3296     'hw/gpio',
3297     'migration',
3298     'net',
3299     'softmmu',
3300     'ui',
3301     'hw/remote',
3302   ]
3303 endif
3304 if have_system or have_user
3305   trace_events_subdirs += [
3306     'accel/tcg',
3307     'hw/core',
3308     'target/arm',
3309     'target/arm/hvf',
3310     'target/hppa',
3311     'target/i386',
3312     'target/i386/kvm',
3313     'target/mips/tcg',
3314     'target/nios2',
3315     'target/ppc',
3316     'target/riscv',
3317     'target/s390x',
3318     'target/s390x/kvm',
3319     'target/sparc',
3320   ]
3321 endif
3322
3323 vhost_user = not_found
3324 if targetos == 'linux' and have_vhost_user
3325   libvhost_user = subproject('libvhost-user')
3326   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3327 endif
3328
3329 libvduse = not_found
3330 if have_libvduse
3331   libvduse_proj = subproject('libvduse')
3332   libvduse = libvduse_proj.get_variable('libvduse_dep')
3333 endif
3334
3335 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3336 # that is filled in by qapi/.
3337 subdir('qapi')
3338 subdir('qobject')
3339 subdir('stubs')
3340 subdir('trace')
3341 subdir('util')
3342 subdir('qom')
3343 subdir('authz')
3344 subdir('crypto')
3345 subdir('ui')
3346 subdir('hw')
3347 subdir('gdbstub')
3348
3349 if enable_modules
3350   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3351   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3352 endif
3353
3354 qom_ss = qom_ss.apply(config_targetos, strict: false)
3355 libqom = static_library('qom', qom_ss.sources() + genh,
3356                         dependencies: [qom_ss.dependencies()],
3357                         name_suffix: 'fa')
3358 qom = declare_dependency(link_whole: libqom)
3359
3360 event_loop_base = files('event-loop-base.c')
3361 event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3362                                  build_by_default: true)
3363 event_loop_base = declare_dependency(link_whole: event_loop_base,
3364                                      dependencies: [qom])
3365
3366 stub_ss = stub_ss.apply(config_all, strict: false)
3367
3368 util_ss.add_all(trace_ss)
3369 util_ss = util_ss.apply(config_all, strict: false)
3370 libqemuutil = static_library('qemuutil',
3371                              sources: util_ss.sources() + stub_ss.sources() + genh,
3372                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3373 qemuutil = declare_dependency(link_with: libqemuutil,
3374                               sources: genh + version_res,
3375                               dependencies: [event_loop_base])
3376
3377 if have_system or have_user
3378   decodetree = generator(find_program('scripts/decodetree.py'),
3379                          output: 'decode-@BASENAME@.c.inc',
3380                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3381   subdir('libdecnumber')
3382   subdir('target')
3383 endif
3384
3385 subdir('audio')
3386 subdir('io')
3387 subdir('chardev')
3388 subdir('fsdev')
3389 subdir('dump')
3390
3391 if have_block
3392   block_ss.add(files(
3393     'block.c',
3394     'blockjob.c',
3395     'job.c',
3396     'qemu-io-cmds.c',
3397   ))
3398   if config_host_data.get('CONFIG_REPLICATION')
3399     block_ss.add(files('replication.c'))
3400   endif
3401
3402   subdir('nbd')
3403   subdir('scsi')
3404   subdir('block')
3405
3406   blockdev_ss.add(files(
3407     'blockdev.c',
3408     'blockdev-nbd.c',
3409     'iothread.c',
3410     'job-qmp.c',
3411   ), gnutls)
3412
3413   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3414   # os-win32.c does not
3415   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3416   system_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3417 endif
3418
3419 common_ss.add(files('cpus-common.c'))
3420 specific_ss.add(files('cpu.c'))
3421
3422 subdir('softmmu')
3423
3424 # Work around a gcc bug/misfeature wherein constant propagation looks
3425 # through an alias:
3426 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3427 # to guess that a const variable is always zero.  Without lto, this is
3428 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3429 # without lto, not even the alias is required -- we simply use different
3430 # declarations in different compilation units.
3431 pagevary = files('page-vary-common.c')
3432 if get_option('b_lto')
3433   pagevary_flags = ['-fno-lto']
3434   if get_option('cfi')
3435     pagevary_flags += '-fno-sanitize=cfi-icall'
3436   endif
3437   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3438                             c_args: pagevary_flags)
3439   pagevary = declare_dependency(link_with: pagevary)
3440 endif
3441 common_ss.add(pagevary)
3442 specific_ss.add(files('page-vary.c'))
3443
3444 subdir('backends')
3445 subdir('disas')
3446 subdir('migration')
3447 subdir('monitor')
3448 subdir('net')
3449 subdir('replay')
3450 subdir('semihosting')
3451 subdir('stats')
3452 subdir('tcg')
3453 subdir('fpu')
3454 subdir('accel')
3455 subdir('plugins')
3456 subdir('ebpf')
3457
3458 common_user_inc = []
3459
3460 subdir('common-user')
3461 subdir('bsd-user')
3462 subdir('linux-user')
3463
3464 # needed for fuzzing binaries
3465 subdir('tests/qtest/libqos')
3466 subdir('tests/qtest/fuzz')
3467
3468 # accel modules
3469 tcg_real_module_ss = ss.source_set()
3470 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3471 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3472 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3473                                 'tcg': tcg_real_module_ss }}
3474
3475 ########################
3476 # Library dependencies #
3477 ########################
3478
3479 modinfo_collect = find_program('scripts/modinfo-collect.py')
3480 modinfo_generate = find_program('scripts/modinfo-generate.py')
3481 modinfo_files = []
3482
3483 block_mods = []
3484 softmmu_mods = []
3485 foreach d, list : modules
3486   if not (d == 'block' ? have_block : have_system)
3487     continue
3488   endif
3489
3490   foreach m, module_ss : list
3491     if enable_modules
3492       module_ss = module_ss.apply(config_all, strict: false)
3493       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3494                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3495       if d == 'block'
3496         block_mods += sl
3497       else
3498         softmmu_mods += sl
3499       endif
3500       if module_ss.sources() != []
3501         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3502         # input. Sources can be used multiple times but objects are
3503         # unique when it comes to lookup in compile_commands.json.
3504         # Depnds on a mesion version with
3505         # https://github.com/mesonbuild/meson/pull/8900
3506         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3507                                        output: d + '-' + m + '.modinfo',
3508                                        input: module_ss.sources() + genh,
3509                                        capture: true,
3510                                        command: [modinfo_collect, module_ss.sources()])
3511       endif
3512     else
3513       if d == 'block'
3514         block_ss.add_all(module_ss)
3515       else
3516         system_ss.add_all(module_ss)
3517       endif
3518     endif
3519   endforeach
3520 endforeach
3521
3522 foreach d, list : target_modules
3523   foreach m, module_ss : list
3524     if enable_modules
3525       foreach target : target_dirs
3526         if target.endswith('-softmmu')
3527           config_target = config_target_mak[target]
3528           config_target += config_targetos
3529           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3530           c_args = ['-DNEED_CPU_H',
3531                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3532                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3533           target_module_ss = module_ss.apply(config_target, strict: false)
3534           if target_module_ss.sources() != []
3535             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3536             sl = static_library(module_name,
3537                                 [genh, target_module_ss.sources()],
3538                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3539                                 include_directories: target_inc,
3540                                 c_args: c_args,
3541                                 pic: true)
3542             softmmu_mods += sl
3543             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3544             modinfo_files += custom_target(module_name + '.modinfo',
3545                                            output: module_name + '.modinfo',
3546                                            input: target_module_ss.sources() + genh,
3547                                            capture: true,
3548                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3549           endif
3550         endif
3551       endforeach
3552     else
3553       specific_ss.add_all(module_ss)
3554     endif
3555   endforeach
3556 endforeach
3557
3558 if enable_modules
3559   foreach target : target_dirs
3560     if target.endswith('-softmmu')
3561       config_target = config_target_mak[target]
3562       config_devices_mak = target + '-config-devices.mak'
3563       modinfo_src = custom_target('modinfo-' + target + '.c',
3564                                   output: 'modinfo-' + target + '.c',
3565                                   input: modinfo_files,
3566                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3567                                   capture: true)
3568
3569       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3570       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3571
3572       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3573       hw_arch[arch].add(modinfo_dep)
3574     endif
3575   endforeach
3576 endif
3577
3578 nm = find_program('nm')
3579 undefsym = find_program('scripts/undefsym.py')
3580 block_syms = custom_target('block.syms', output: 'block.syms',
3581                              input: [libqemuutil, block_mods],
3582                              capture: true,
3583                              command: [undefsym, nm, '@INPUT@'])
3584 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3585                              input: [libqemuutil, softmmu_mods],
3586                              capture: true,
3587                              command: [undefsym, nm, '@INPUT@'])
3588
3589 authz_ss = authz_ss.apply(config_targetos, strict: false)
3590 libauthz = static_library('authz', authz_ss.sources() + genh,
3591                           dependencies: [authz_ss.dependencies()],
3592                           name_suffix: 'fa',
3593                           build_by_default: false)
3594
3595 authz = declare_dependency(link_whole: libauthz,
3596                            dependencies: qom)
3597
3598 crypto_ss = crypto_ss.apply(config_targetos, strict: false)
3599 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3600                            dependencies: [crypto_ss.dependencies()],
3601                            name_suffix: 'fa',
3602                            build_by_default: false)
3603
3604 crypto = declare_dependency(link_whole: libcrypto,
3605                             dependencies: [authz, qom])
3606
3607 io_ss = io_ss.apply(config_targetos, strict: false)
3608 libio = static_library('io', io_ss.sources() + genh,
3609                        dependencies: [io_ss.dependencies()],
3610                        link_with: libqemuutil,
3611                        name_suffix: 'fa',
3612                        build_by_default: false)
3613
3614 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3615
3616 libmigration = static_library('migration', sources: migration_files + genh,
3617                               name_suffix: 'fa',
3618                               build_by_default: false)
3619 migration = declare_dependency(link_with: libmigration,
3620                                dependencies: [zlib, qom, io])
3621 system_ss.add(migration)
3622
3623 block_ss = block_ss.apply(config_targetos, strict: false)
3624 libblock = static_library('block', block_ss.sources() + genh,
3625                           dependencies: block_ss.dependencies(),
3626                           link_depends: block_syms,
3627                           name_suffix: 'fa',
3628                           build_by_default: false)
3629
3630 block = declare_dependency(link_whole: [libblock],
3631                            link_args: '@block.syms',
3632                            dependencies: [crypto, io])
3633
3634 blockdev_ss = blockdev_ss.apply(config_targetos, strict: false)
3635 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3636                              dependencies: blockdev_ss.dependencies(),
3637                              name_suffix: 'fa',
3638                              build_by_default: false)
3639
3640 blockdev = declare_dependency(link_whole: [libblockdev],
3641                               dependencies: [block, event_loop_base])
3642
3643 qmp_ss = qmp_ss.apply(config_targetos, strict: false)
3644 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3645                         dependencies: qmp_ss.dependencies(),
3646                         name_suffix: 'fa',
3647                         build_by_default: false)
3648
3649 qmp = declare_dependency(link_whole: [libqmp])
3650
3651 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3652                             name_suffix: 'fa',
3653                             dependencies: chardev_ss.dependencies(),
3654                             build_by_default: false)
3655
3656 chardev = declare_dependency(link_whole: libchardev)
3657
3658 hwcore_ss = hwcore_ss.apply(config_targetos, strict: false)
3659 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3660                            name_suffix: 'fa',
3661                            build_by_default: false)
3662 hwcore = declare_dependency(link_whole: libhwcore)
3663 common_ss.add(hwcore)
3664
3665 ###########
3666 # Targets #
3667 ###########
3668
3669 emulator_modules = []
3670 foreach m : block_mods + softmmu_mods
3671   emulator_modules += shared_module(m.name(),
3672                 build_by_default: true,
3673                 name_prefix: '',
3674                 link_whole: m,
3675                 install: true,
3676                 install_dir: qemu_moddir)
3677 endforeach
3678 if emulator_modules.length() > 0
3679   alias_target('modules', emulator_modules)
3680 endif
3681
3682 system_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3683 common_ss.add(qom, qemuutil)
3684
3685 common_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: [system_ss])
3686 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3687
3688 common_all = common_ss.apply(config_all, strict: false)
3689 common_all = static_library('common',
3690                             build_by_default: false,
3691                             sources: common_all.sources() + genh,
3692                             include_directories: common_user_inc,
3693                             implicit_include_directories: false,
3694                             dependencies: common_all.dependencies(),
3695                             name_suffix: 'fa')
3696
3697 feature_to_c = find_program('scripts/feature_to_c.sh')
3698
3699 if targetos == 'darwin'
3700   entitlement = find_program('scripts/entitlement.sh')
3701 endif
3702
3703 emulators = {}
3704 foreach target : target_dirs
3705   config_target = config_target_mak[target]
3706   target_name = config_target['TARGET_NAME']
3707   target_base_arch = config_target['TARGET_BASE_ARCH']
3708   arch_srcs = [config_target_h[target]]
3709   arch_deps = []
3710   c_args = ['-DNEED_CPU_H',
3711             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3712             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3713   link_args = emulator_link_args
3714
3715   config_target += config_targetos
3716   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3717   if targetos == 'linux'
3718     target_inc += include_directories('linux-headers', is_system: true)
3719   endif
3720   if target.endswith('-softmmu')
3721     target_type='system'
3722     t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3723     arch_srcs += t.sources()
3724     arch_deps += t.dependencies()
3725
3726     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3727     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3728     arch_srcs += hw.sources()
3729     arch_deps += hw.dependencies()
3730
3731     arch_srcs += config_devices_h[target]
3732     link_args += ['@block.syms', '@qemu.syms']
3733   else
3734     abi = config_target['TARGET_ABI_DIR']
3735     target_type='user'
3736     target_inc += common_user_inc
3737     if target_base_arch in target_user_arch
3738       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3739       arch_srcs += t.sources()
3740       arch_deps += t.dependencies()
3741     endif
3742     if 'CONFIG_LINUX_USER' in config_target
3743       base_dir = 'linux-user'
3744     endif
3745     if 'CONFIG_BSD_USER' in config_target
3746       base_dir = 'bsd-user'
3747       target_inc += include_directories('bsd-user/' / targetos)
3748       target_inc += include_directories('bsd-user/host/' / host_arch)
3749       dir = base_dir / abi
3750       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3751     endif
3752     target_inc += include_directories(
3753       base_dir,
3754       base_dir / abi,
3755     )
3756     if 'CONFIG_LINUX_USER' in config_target
3757       dir = base_dir / abi
3758       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3759       if config_target.has_key('TARGET_SYSTBL_ABI')
3760         arch_srcs += \
3761           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3762                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3763       endif
3764     endif
3765   endif
3766
3767   if 'TARGET_XML_FILES' in config_target
3768     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3769                                 output: target + '-gdbstub-xml.c',
3770                                 input: files(config_target['TARGET_XML_FILES'].split()),
3771                                 command: [feature_to_c, '@INPUT@'],
3772                                 capture: true)
3773     arch_srcs += gdbstub_xml
3774   endif
3775
3776   t = target_arch[target_base_arch].apply(config_target, strict: false)
3777   arch_srcs += t.sources()
3778   arch_deps += t.dependencies()
3779
3780   target_common = common_ss.apply(config_target, strict: false)
3781   objects = common_all.extract_objects(target_common.sources())
3782   deps = target_common.dependencies()
3783
3784   target_specific = specific_ss.apply(config_target, strict: false)
3785   arch_srcs += target_specific.sources()
3786   arch_deps += target_specific.dependencies()
3787
3788   lib = static_library('qemu-' + target,
3789                  sources: arch_srcs + genh,
3790                  dependencies: arch_deps,
3791                  objects: objects,
3792                  include_directories: target_inc,
3793                  c_args: c_args,
3794                  build_by_default: false,
3795                  name_suffix: 'fa')
3796
3797   if target.endswith('-softmmu')
3798     execs = [{
3799       'name': 'qemu-system-' + target_name,
3800       'win_subsystem': 'console',
3801       'sources': files('softmmu/main.c'),
3802       'dependencies': []
3803     }]
3804     if targetos == 'windows' and (sdl.found() or gtk.found())
3805       execs += [{
3806         'name': 'qemu-system-' + target_name + 'w',
3807         'win_subsystem': 'windows',
3808         'sources': files('softmmu/main.c'),
3809         'dependencies': []
3810       }]
3811     endif
3812     if get_option('fuzzing')
3813       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3814       execs += [{
3815         'name': 'qemu-fuzz-' + target_name,
3816         'win_subsystem': 'console',
3817         'sources': specific_fuzz.sources(),
3818         'dependencies': specific_fuzz.dependencies(),
3819       }]
3820     endif
3821   else
3822     execs = [{
3823       'name': 'qemu-' + target_name,
3824       'win_subsystem': 'console',
3825       'sources': [],
3826       'dependencies': []
3827     }]
3828   endif
3829   foreach exe: execs
3830     exe_name = exe['name']
3831     if targetos == 'darwin'
3832       exe_name += '-unsigned'
3833     endif
3834
3835     emulator = executable(exe_name, exe['sources'],
3836                install: true,
3837                c_args: c_args,
3838                dependencies: arch_deps + deps + exe['dependencies'],
3839                objects: lib.extract_all_objects(recursive: true),
3840                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3841                link_args: link_args,
3842                win_subsystem: exe['win_subsystem'])
3843
3844     if targetos == 'darwin'
3845       icon = 'pc-bios/qemu.rsrc'
3846       build_input = [emulator, files(icon)]
3847       install_input = [
3848         get_option('bindir') / exe_name,
3849         meson.current_source_dir() / icon
3850       ]
3851       if 'CONFIG_HVF' in config_target
3852         entitlements = 'accel/hvf/entitlements.plist'
3853         build_input += files(entitlements)
3854         install_input += meson.current_source_dir() / entitlements
3855       endif
3856
3857       emulators += {exe['name'] : custom_target(exe['name'],
3858                    input: build_input,
3859                    output: exe['name'],
3860                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3861       }
3862
3863       meson.add_install_script(entitlement, '--install',
3864                                get_option('bindir') / exe['name'],
3865                                install_input)
3866     else
3867       emulators += {exe['name']: emulator}
3868     endif
3869
3870     if stap.found()
3871       foreach stp: [
3872         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3873         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3874         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3875         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3876       ]
3877         custom_target(exe['name'] + stp['ext'],
3878                       input: trace_events_all,
3879                       output: exe['name'] + stp['ext'],
3880                       install: stp['install'],
3881                       install_dir: get_option('datadir') / 'systemtap/tapset',
3882                       command: [
3883                         tracetool, '--group=all', '--format=' + stp['fmt'],
3884                         '--binary=' + stp['bin'],
3885                         '--target-name=' + target_name,
3886                         '--target-type=' + target_type,
3887                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3888                         '@INPUT@', '@OUTPUT@'
3889                       ],
3890                       depend_files: tracetool_depends)
3891       endforeach
3892     endif
3893   endforeach
3894 endforeach
3895
3896 # Other build targets
3897
3898 if get_option('plugins')
3899   install_headers('include/qemu/qemu-plugin.h')
3900 endif
3901
3902 subdir('qga')
3903
3904 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3905 # when we don't build tools or system
3906 if xkbcommon.found()
3907   # used for the update-keymaps target, so include rules even if !have_tools
3908   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3909                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3910 endif
3911
3912 if have_tools
3913   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3914              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3915   qemu_io = executable('qemu-io', files('qemu-io.c'),
3916              dependencies: [block, qemuutil], install: true)
3917   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3918                dependencies: [blockdev, qemuutil, gnutls, selinux],
3919                install: true)
3920
3921   subdir('storage-daemon')
3922   subdir('contrib/rdmacm-mux')
3923   subdir('contrib/elf2dmp')
3924
3925   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3926              dependencies: qemuutil,
3927              install: true)
3928
3929   if have_vhost_user
3930     subdir('contrib/vhost-user-blk')
3931     subdir('contrib/vhost-user-gpu')
3932     subdir('contrib/vhost-user-input')
3933     subdir('contrib/vhost-user-scsi')
3934   endif
3935
3936   if targetos == 'linux'
3937     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3938                dependencies: [qemuutil, libcap_ng],
3939                install: true,
3940                install_dir: get_option('libexecdir'))
3941
3942     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3943                dependencies: [authz, crypto, io, qom, qemuutil,
3944                               libcap_ng, mpathpersist],
3945                install: true)
3946   endif
3947
3948   if have_ivshmem
3949     subdir('contrib/ivshmem-client')
3950     subdir('contrib/ivshmem-server')
3951   endif
3952 endif
3953
3954 subdir('scripts')
3955 subdir('tools')
3956 subdir('pc-bios')
3957 subdir('docs')
3958 subdir('tests')
3959 if gtk.found()
3960   subdir('po')
3961 endif
3962
3963 if host_machine.system() == 'windows'
3964   nsis_cmd = [
3965     find_program('scripts/nsis.py'),
3966     '@OUTPUT@',
3967     get_option('prefix'),
3968     meson.current_source_dir(),
3969     glib_pc.get_variable('bindir'),
3970     host_machine.cpu(),
3971     '--',
3972     '-DDISPLAYVERSION=' + meson.project_version(),
3973   ]
3974   if build_docs
3975     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3976   endif
3977   if gtk.found()
3978     nsis_cmd += '-DCONFIG_GTK=y'
3979   endif
3980
3981   nsis = custom_target('nsis',
3982                        output: 'qemu-setup-' + meson.project_version() + '.exe',
3983                        input: files('qemu.nsi'),
3984                        build_always_stale: true,
3985                        command: nsis_cmd + ['@INPUT@'])
3986   alias_target('installer', nsis)
3987 endif
3988
3989 #########################
3990 # Configuration summary #
3991 #########################
3992
3993 # Build environment
3994 summary_info = {}
3995 summary_info += {'Build directory':   meson.current_build_dir()}
3996 summary_info += {'Source path':       meson.current_source_dir()}
3997 summary_info += {'Download dependencies': get_option('wrap_mode') != 'nodownload'}
3998 summary(summary_info, bool_yn: true, section: 'Build environment')
3999
4000 # Directories
4001 summary_info += {'Install prefix':    get_option('prefix')}
4002 summary_info += {'BIOS directory':    qemu_datadir}
4003 pathsep = targetos == 'windows' ? ';' : ':'
4004 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
4005 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
4006 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
4007 summary_info += {'module directory':  qemu_moddir}
4008 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
4009 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
4010 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
4011 if targetos != 'windows'
4012   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
4013   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
4014 else
4015   summary_info += {'local state directory': 'queried at runtime'}
4016 endif
4017 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4018 summary(summary_info, bool_yn: true, section: 'Directories')
4019
4020 # Host binaries
4021 summary_info = {}
4022 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4023 summary_info += {'sphinx-build':      sphinx_build}
4024 if config_host.has_key('HAVE_GDB_BIN')
4025   summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
4026 endif
4027 summary_info += {'iasl':              iasl}
4028 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4029 if targetos == 'windows' and have_ga
4030   summary_info += {'wixl':            wixl}
4031 endif
4032 if slirp.found() and have_system
4033   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4034 endif
4035 summary(summary_info, bool_yn: true, section: 'Host binaries')
4036
4037 # Configurable features
4038 summary_info = {}
4039 summary_info += {'Documentation':     build_docs}
4040 summary_info += {'system-mode emulation': have_system}
4041 summary_info += {'user-mode emulation': have_user}
4042 summary_info += {'block layer':       have_block}
4043 summary_info += {'Install blobs':     get_option('install_blobs')}
4044 summary_info += {'module support':    enable_modules}
4045 if enable_modules
4046   summary_info += {'alternative module path': get_option('module_upgrades')}
4047 endif
4048 summary_info += {'fuzzing support':   get_option('fuzzing')}
4049 if have_system
4050   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4051 endif
4052 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4053 if 'simple' in get_option('trace_backends')
4054   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4055 endif
4056 summary_info += {'D-Bus display':     dbus_display}
4057 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4058 summary_info += {'vhost-kernel support': have_vhost_kernel}
4059 summary_info += {'vhost-net support': have_vhost_net}
4060 summary_info += {'vhost-user support': have_vhost_user}
4061 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4062 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4063 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4064 summary_info += {'build guest agent': have_ga}
4065 summary(summary_info, bool_yn: true, section: 'Configurable features')
4066
4067 # Compilation information
4068 summary_info = {}
4069 summary_info += {'host CPU':          cpu}
4070 summary_info += {'host endianness':   build_machine.endian()}
4071 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4072 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4073 if 'cpp' in all_languages
4074   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4075 else
4076   summary_info += {'C++ compiler':      false}
4077 endif
4078 if targetos == 'darwin'
4079   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4080 endif
4081 option_cflags = (get_option('debug') ? ['-g'] : [])
4082 if get_option('optimization') != 'plain'
4083   option_cflags += ['-O' + get_option('optimization')]
4084 endif
4085 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4086 if 'cpp' in all_languages
4087   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4088 endif
4089 if targetos == 'darwin'
4090   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4091 endif
4092 link_args = get_option('c_link_args')
4093 if link_args.length() > 0
4094   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4095 endif
4096 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4097 if 'cpp' in all_languages
4098   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4099 endif
4100 if 'objc' in all_languages
4101   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4102 endif
4103 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4104 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4105 summary_info += {'PIE':               get_option('b_pie')}
4106 summary_info += {'static build':      get_option('prefer_static')}
4107 summary_info += {'malloc trim support': has_malloc_trim}
4108 summary_info += {'membarrier':        have_membarrier}
4109 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4110 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4111 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4112 summary_info += {'memory allocator':  get_option('malloc')}
4113 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4114 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4115 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4116 if get_option('gprof')
4117   gprof_info = 'YES (deprecated)'
4118 else
4119   gprof_info = get_option('gprof')
4120 endif
4121 summary_info += {'gprof':             gprof_info}
4122 summary_info += {'gcov':              get_option('b_coverage')}
4123 summary_info += {'thread sanitizer':  get_option('tsan')}
4124 summary_info += {'CFI support':       get_option('cfi')}
4125 if get_option('cfi')
4126   summary_info += {'CFI debug support': get_option('cfi_debug')}
4127 endif
4128 summary_info += {'strip binaries':    get_option('strip')}
4129 summary_info += {'sparse':            sparse}
4130 summary_info += {'mingw32 support':   targetos == 'windows'}
4131 summary(summary_info, bool_yn: true, section: 'Compilation')
4132
4133 # snarf the cross-compilation information for tests
4134 summary_info = {}
4135 have_cross = false
4136 foreach target: target_dirs
4137   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4138   if fs.exists(tcg_mak)
4139     config_cross_tcg = keyval.load(tcg_mak)
4140     if 'CC' in config_cross_tcg
4141       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4142       have_cross = true
4143     endif
4144   endif
4145 endforeach
4146 if have_cross
4147   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4148 endif
4149
4150 # Targets and accelerators
4151 summary_info = {}
4152 if have_system
4153   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4154   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4155   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4156   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4157   summary_info += {'Xen support':       xen.found()}
4158   if xen.found()
4159     summary_info += {'xen ctrl version':  xen.version()}
4160   endif
4161   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4162 endif
4163 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4164 if config_all.has_key('CONFIG_TCG')
4165   if get_option('tcg_interpreter')
4166     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4167   else
4168     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4169   endif
4170   summary_info += {'TCG plugins':       get_option('plugins')}
4171   summary_info += {'TCG debug enabled': get_option('debug_tcg')}
4172 endif
4173 summary_info += {'target list':       ' '.join(target_dirs)}
4174 if have_system
4175   summary_info += {'default devices':   get_option('default_devices')}
4176   summary_info += {'out of process emulation': multiprocess_allowed}
4177   summary_info += {'vfio-user server': vfio_user_server_allowed}
4178 endif
4179 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4180
4181 # Block layer
4182 summary_info = {}
4183 summary_info += {'coroutine backend': coroutine_backend}
4184 summary_info += {'coroutine pool':    have_coroutine_pool}
4185 if have_block
4186   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4187   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4188   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4189   summary_info += {'VirtFS (9P) support':    have_virtfs}
4190   summary_info += {'VirtFS (9P) Proxy Helper support (deprecated)': have_virtfs_proxy_helper}
4191   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4192   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4193   summary_info += {'bochs support':     get_option('bochs').allowed()}
4194   summary_info += {'cloop support':     get_option('cloop').allowed()}
4195   summary_info += {'dmg support':       get_option('dmg').allowed()}
4196   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4197   summary_info += {'vdi support':       get_option('vdi').allowed()}
4198   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4199   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4200   summary_info += {'vpc support':       get_option('vpc').allowed()}
4201   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4202   summary_info += {'qed support':       get_option('qed').allowed()}
4203   summary_info += {'parallels support': get_option('parallels').allowed()}
4204   summary_info += {'FUSE exports':      fuse}
4205   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4206 endif
4207 summary(summary_info, bool_yn: true, section: 'Block layer support')
4208
4209 # Crypto
4210 summary_info = {}
4211 summary_info += {'TLS priority':      get_option('tls_priority')}
4212 summary_info += {'GNUTLS support':    gnutls}
4213 if gnutls.found()
4214   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4215 endif
4216 summary_info += {'libgcrypt':         gcrypt}
4217 summary_info += {'nettle':            nettle}
4218 if nettle.found()
4219    summary_info += {'  XTS':             xts != 'private'}
4220 endif
4221 summary_info += {'AF_ALG support':    have_afalg}
4222 summary_info += {'rng-none':          get_option('rng_none')}
4223 summary_info += {'Linux keyring':     have_keyring}
4224 summary(summary_info, bool_yn: true, section: 'Crypto')
4225
4226 # UI
4227 summary_info = {}
4228 if targetos == 'darwin'
4229   summary_info += {'Cocoa support':           cocoa}
4230 endif
4231 summary_info += {'SDL support':       sdl}
4232 summary_info += {'SDL image support': sdl_image}
4233 summary_info += {'GTK support':       gtk}
4234 summary_info += {'pixman':            pixman}
4235 summary_info += {'VTE support':       vte}
4236 summary_info += {'PNG support':       png}
4237 summary_info += {'VNC support':       vnc}
4238 if vnc.found()
4239   summary_info += {'VNC SASL support':  sasl}
4240   summary_info += {'VNC JPEG support':  jpeg}
4241 endif
4242 summary_info += {'spice protocol support': spice_protocol}
4243 if spice_protocol.found()
4244   summary_info += {'  spice server support': spice}
4245 endif
4246 summary_info += {'curses support':    curses}
4247 summary_info += {'brlapi support':    brlapi}
4248 summary(summary_info, bool_yn: true, section: 'User interface')
4249
4250 # Audio backends
4251 summary_info = {}
4252 if targetos not in ['darwin', 'haiku', 'windows']
4253   summary_info += {'OSS support':     oss}
4254   summary_info += {'sndio support':   sndio}
4255 elif targetos == 'darwin'
4256   summary_info += {'CoreAudio support': coreaudio}
4257 elif targetos == 'windows'
4258   summary_info += {'DirectSound support': dsound}
4259 endif
4260 if targetos == 'linux'
4261   summary_info += {'ALSA support':    alsa}
4262   summary_info += {'PulseAudio support': pulse}
4263 endif
4264 summary_info += {'PipeWire support':  pipewire}
4265 summary_info += {'JACK support':      jack}
4266 summary(summary_info, bool_yn: true, section: 'Audio backends')
4267
4268 # Network backends
4269 summary_info = {}
4270 if targetos == 'darwin'
4271   summary_info += {'vmnet.framework support': vmnet}
4272 endif
4273 summary_info += {'slirp support':     slirp}
4274 summary_info += {'vde support':       vde}
4275 summary_info += {'netmap support':    have_netmap}
4276 summary_info += {'l2tpv3 support':    have_l2tpv3}
4277 summary(summary_info, bool_yn: true, section: 'Network backends')
4278
4279 # Libraries
4280 summary_info = {}
4281 summary_info += {'libtasn1':          tasn1}
4282 summary_info += {'PAM':               pam}
4283 summary_info += {'iconv support':     iconv}
4284 summary_info += {'virgl support':     virgl}
4285 summary_info += {'blkio support':     blkio}
4286 summary_info += {'curl support':      curl}
4287 summary_info += {'Multipath support': mpathpersist}
4288 summary_info += {'Linux AIO support': libaio}
4289 summary_info += {'Linux io_uring support': linux_io_uring}
4290 summary_info += {'ATTR/XATTR support': libattr}
4291 summary_info += {'RDMA support':      rdma}
4292 summary_info += {'PVRDMA support':    have_pvrdma}
4293 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4294 summary_info += {'libcap-ng support': libcap_ng}
4295 summary_info += {'bpf support':       libbpf}
4296 summary_info += {'rbd support':       rbd}
4297 summary_info += {'smartcard support': cacard}
4298 summary_info += {'U2F support':       u2f}
4299 summary_info += {'libusb':            libusb}
4300 summary_info += {'usb net redir':     usbredir}
4301 summary_info += {'OpenGL support (epoxy)': opengl}
4302 summary_info += {'GBM':               gbm}
4303 summary_info += {'libiscsi support':  libiscsi}
4304 summary_info += {'libnfs support':    libnfs}
4305 if targetos == 'windows'
4306   if have_ga
4307     summary_info += {'QGA VSS support':   have_qga_vss}
4308   endif
4309 endif
4310 summary_info += {'seccomp support':   seccomp}
4311 summary_info += {'GlusterFS support': glusterfs}
4312 summary_info += {'TPM support':       have_tpm}
4313 summary_info += {'libssh support':    libssh}
4314 summary_info += {'lzo support':       lzo}
4315 summary_info += {'snappy support':    snappy}
4316 summary_info += {'bzip2 support':     libbzip2}
4317 summary_info += {'lzfse support':     liblzfse}
4318 summary_info += {'zstd support':      zstd}
4319 summary_info += {'NUMA host support': numa}
4320 summary_info += {'capstone':          capstone}
4321 summary_info += {'libpmem support':   libpmem}
4322 summary_info += {'libdaxctl support': libdaxctl}
4323 summary_info += {'libudev':           libudev}
4324 # Dummy dependency, keep .found()
4325 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4326 summary_info += {'selinux':           selinux}
4327 summary_info += {'libdw':             libdw}
4328 summary(summary_info, bool_yn: true, section: 'Dependencies')
4329
4330 if host_arch == 'unknown'
4331   message()
4332   warning('UNSUPPORTED HOST CPU')
4333   message()
4334   message('Support for CPU host architecture ' + cpu + ' is not currently')
4335   message('maintained. The QEMU project does not guarantee that QEMU will')
4336   message('compile or work on this host CPU. You can help by volunteering')
4337   message('to maintain it and providing a build host for our continuous')
4338   message('integration setup.')
4339   if get_option('tcg').allowed() and target_dirs.length() > 0
4340     message()
4341     message('configure has succeeded and you can continue to build, but')
4342     message('QEMU will use a slow interpreter to emulate the target CPU.')
4343   endif
4344 endif
4345
4346 if not supported_oses.contains(targetos)
4347   message()
4348   warning('UNSUPPORTED HOST OS')
4349   message()
4350   message('Support for host OS ' + targetos + 'is not currently maintained.')
4351   message('configure has succeeded and you can continue to build, but')
4352   message('the QEMU project does not guarantee that QEMU will compile or')
4353   message('work on this operating system. You can help by volunteering')
4354   message('to maintain it and providing a build host for our continuous')
4355   message('integration setup. This will ensure that future versions of QEMU')
4356   message('will keep working on ' + targetos + '.')
4357 endif
4358
4359 if host_arch == 'unknown' or not supported_oses.contains(targetos)
4360   message()
4361   message('If you want to help supporting QEMU on this platform, please')
4362   message('contact the developers at qemu-devel@nongnu.org.')
4363 endif