meson.build

   1 project('qemu', ['c'], meson_version: '>=0.63.0',
   2         default_options: ['warning_level=1', 'c_std=gnu11', 'cpp_std=gnu++11', 'b_colorout=auto',
   3                           'b_staticpic=false', 'stdsplit=false', 'optimization=2', 'b_pie=true'],
   4         version: files('VERSION'))
   5
   6 add_test_setup('quick', exclude_suites: ['slow', 'thorough'], is_default: true)
   7 add_test_setup('slow', exclude_suites: ['thorough'], env: ['G_TEST_SLOW=1', 'SPEED=slow'])
   8 add_test_setup('thorough', env: ['G_TEST_SLOW=1', 'SPEED=thorough'])
   9
  10 meson.add_postconf_script(find_program('scripts/symlink-install-tree.py'))
  11
  12 not_found = dependency('', required: false)
  13 keyval = import('keyval')
  14 ss = import('sourceset')
  15 fs = import('fs')
  16
  17 targetos = host_machine.system()
  18 sh = find_program('sh')
  19 config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
  20
  21 cc = meson.get_compiler('c')
  22 all_languages = ['c']
  23 if targetos == 'windows' and add_languages('cpp', required: false, native: false)
  24   all_languages += ['cpp']
  25   cxx = meson.get_compiler('cpp')
  26 endif
  27 if targetos == 'darwin' and \
  28    add_languages('objc', required: get_option('cocoa'), native: false)
  29   all_languages += ['objc']
  30   objc = meson.get_compiler('objc')
  31 endif
  32
  33 # Temporary directory used for files created while
  34 # configure runs. Since it is in the build directory
  35 # we can safely blow away any previous version of it
  36 # (and we need not jump through hoops to try to delete
  37 # it when configure exits.)
  38 tmpdir = meson.current_build_dir() / 'meson-private/temp'
  39
  40 if get_option('qemu_suffix').startswith('/')
  41   error('qemu_suffix cannot start with a /')
  42 endif
  43
  44 qemu_confdir = get_option('sysconfdir') / get_option('qemu_suffix')
  45 qemu_datadir = get_option('datadir') / get_option('qemu_suffix')
  46 qemu_docdir = get_option('docdir') / get_option('qemu_suffix')
  47 qemu_moddir = get_option('libdir') / get_option('qemu_suffix')
  48
  49 qemu_desktopdir = get_option('datadir') / 'applications'
  50 qemu_icondir = get_option('datadir') / 'icons'
  51
  52 config_host_data = configuration_data()
  53 genh = []
  54 qapi_trace_events = []
  55
  56 bsd_oses = ['gnu/kfreebsd', 'freebsd', 'netbsd', 'openbsd', 'dragonfly', 'darwin']
  57 supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux']
  58 supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv32', 'riscv64', 'x86', 'x86_64',
  59   'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64']
  60
  61 cpu = host_machine.cpu_family()
  62
  63 target_dirs = config_host['TARGET_DIRS'].split()
  64 have_linux_user = false
  65 have_bsd_user = false
  66 have_system = false
  67 foreach target : target_dirs
  68   have_linux_user = have_linux_user or target.endswith('linux-user')
  69   have_bsd_user = have_bsd_user or target.endswith('bsd-user')
  70   have_system = have_system or target.endswith('-softmmu')
  71 endforeach
  72 have_user = have_linux_user or have_bsd_user
  73 have_tools = get_option('tools') \
  74   .disable_auto_if(not have_system) \
  75   .allowed()
  76 have_ga = get_option('guest_agent') \
  77   .disable_auto_if(not have_system and not have_tools) \
  78   .require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
  79            error_message: 'unsupported OS for QEMU guest agent') \
  80   .allowed()
  81 enable_modules = get_option('modules') \
  82   .require(targetos != 'windows',
  83            error_message: 'Modules are not available for Windows') \
  84   .require(not get_option('prefer_static'),
  85            error_message: 'Modules are incompatible with static linking') \
  86   .allowed()
  87 have_block = have_system or have_tools
  88
  89 python = import('python').find_installation()
  90
  91 if cpu not in supported_cpus
  92   host_arch = 'unknown'
  93 elif cpu == 'x86'
  94   host_arch = 'i386'
  95 elif cpu == 'mips64'
  96   host_arch = 'mips'
  97 elif cpu in ['riscv32', 'riscv64']
  98   host_arch = 'riscv'
  99 else
 100   host_arch = cpu
 101 endif
 102
 103 if cpu in ['x86', 'x86_64']
 104   kvm_targets = ['i386-softmmu', 'x86_64-softmmu']
 105 elif cpu == 'aarch64'
 106   kvm_targets = ['aarch64-softmmu']
 107 elif cpu == 's390x'
 108   kvm_targets = ['s390x-softmmu']
 109 elif cpu in ['ppc', 'ppc64']
 110   kvm_targets = ['ppc-softmmu', 'ppc64-softmmu']
 111 elif cpu in ['mips', 'mips64']
 112   kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu']
 113 elif cpu in ['riscv32']
 114   kvm_targets = ['riscv32-softmmu']
 115 elif cpu in ['riscv64']
 116   kvm_targets = ['riscv64-softmmu']
 117 else
 118   kvm_targets = []
 119 endif
 120
 121 kvm_targets_c = '""'
 122 if get_option('kvm').allowed() and targetos == 'linux'
 123   kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
 124 endif
 125 config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
 126
 127 accelerator_targets = { 'CONFIG_KVM': kvm_targets }
 128
 129 if cpu in ['aarch64']
 130   accelerator_targets += {
 131     'CONFIG_HVF': ['aarch64-softmmu']
 132   }
 133 endif
 134
 135 if cpu in ['x86', 'x86_64', 'arm', 'aarch64']
 136   # i386 emulator provides xenpv machine type for multiple architectures
 137   accelerator_targets += {
 138     'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu', 'aarch64-softmmu'],
 139   }
 140 endif
 141 if cpu in ['x86', 'x86_64']
 142   accelerator_targets += {
 143     'CONFIG_HVF': ['x86_64-softmmu'],
 144     'CONFIG_NVMM': ['i386-softmmu', 'x86_64-softmmu'],
 145     'CONFIG_WHPX': ['i386-softmmu', 'x86_64-softmmu'],
 146   }
 147 endif
 148
 149 modular_tcg = []
 150 # Darwin does not support references to thread-local variables in modules
 151 if targetos != 'darwin'
 152   modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
 153 endif
 154
 155 edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
 156 unpack_edk2_blobs = false
 157 foreach target : edk2_targets
 158   if target in target_dirs
 159     bzip2 = find_program('bzip2', required: get_option('install_blobs'))
 160     unpack_edk2_blobs = bzip2.found()
 161     break
 162   endif
 163 endforeach
 164
 165 dtrace = not_found
 166 stap = not_found
 167 if 'dtrace' in get_option('trace_backends')
 168   dtrace = find_program('dtrace', required: true)
 169   stap = find_program('stap', required: false)
 170   if stap.found()
 171     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
 172     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
 173     # instead. QEMU --enable-modules depends on this because the SystemTap
 174     # semaphores are linked into the main binary and not the module's shared
 175     # object.
 176     add_global_arguments('-DSTAP_SDT_V2',
 177                          native: false, language: all_languages)
 178   endif
 179 endif
 180
 181 if get_option('iasl') == ''
 182   iasl = find_program('iasl', required: false)
 183 else
 184   iasl = find_program(get_option('iasl'), required: true)
 185 endif
 186
 187 ##################
 188 # Compiler flags #
 189 ##################
 190
 191 foreach lang : all_languages
 192   compiler = meson.get_compiler(lang)
 193   if compiler.get_id() == 'gcc' and compiler.version().version_compare('>=7.4')
 194     # ok
 195   elif compiler.get_id() == 'clang' and compiler.compiles('''
 196       #ifdef __apple_build_version__
 197       # if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
 198       #  error You need at least XCode Clang v12.0 to compile QEMU
 199       # endif
 200       #else
 201       # if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
 202       #  error You need at least Clang v10.0 to compile QEMU
 203       # endif
 204       #endif''')
 205     # ok
 206   else
 207     error('You either need GCC v7.4 or Clang v10.0 (or XCode Clang v12.0) to compile QEMU')
 208   endif
 209 endforeach
 210
 211 # default flags for all hosts
 212 # We use -fwrapv to tell the compiler that we require a C dialect where
 213 # left shift of signed integers is well defined and has the expected
 214 # 2s-complement style results. (Both clang and gcc agree that it
 215 # provides these semantics.)
 216
 217 qemu_common_flags = [
 218   '-D_GNU_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE',
 219   '-fno-strict-aliasing', '-fno-common', '-fwrapv' ]
 220 qemu_cflags = []
 221 qemu_ldflags = []
 222
 223 if targetos == 'darwin'
 224   # Disable attempts to use ObjectiveC features in os/object.h since they
 225   # won't work when we're compiling with gcc as a C compiler.
 226   if compiler.get_id() == 'gcc'
 227     qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
 228   endif
 229 elif targetos == 'sunos'
 230   # needed for CMSG_ macros in sys/socket.h
 231   qemu_common_flags += '-D_XOPEN_SOURCE=600'
 232   # needed for TIOCWIN* defines in termios.h
 233   qemu_common_flags += '-D__EXTENSIONS__'
 234 elif targetos == 'haiku'
 235   qemu_common_flags += ['-DB_USE_POSITIVE_POSIX_ERRORS', '-D_BSD_SOURCE', '-fPIC']
 236 endif
 237
 238 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
 239 # use i686 as default anyway, but for those that don't, an explicit
 240 # specification is necessary
 241 if host_arch == 'i386' and not cc.links('''
 242   static int sfaa(int *ptr)
 243   {
 244     return __sync_fetch_and_and(ptr, 0);
 245   }
 246
 247   int main(void)
 248   {
 249     int val = 42;
 250     val = __sync_val_compare_and_swap(&val, 0, 1);
 251     sfaa(&val);
 252     return val;
 253   }''')
 254   qemu_common_flags = ['-march=i486'] + qemu_common_flags
 255 endif
 256
 257 if get_option('prefer_static')
 258   qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static'
 259 endif
 260
 261 # Meson currently only handles pie as a boolean for now, so if the user
 262 # has explicitly disabled PIE we need to extend our cflags.
 263 #
 264 # -no-pie is supposedly a linker flag that has no effect on the compiler
 265 # command line, but some distros, that didn't quite know what they were
 266 # doing, made local changes to gcc's specs file that turned it into
 267 # a compiler command-line flag.
 268 #
 269 # What about linker flags?  For a static build, no PIE is implied by -static
 270 # which we added above (and if it's not because of the same specs patching,
 271 # there's nothing we can do: compilation will fail, report a bug to your
 272 # distro and do not use --disable-pie in the meanwhile).  For dynamic linking,
 273 # instead, we can't add -no-pie because it overrides -shared: the linker then
 274 # tries to build an executable instead of a shared library and fails.  So
 275 # don't add -no-pie anywhere and cross fingers. :(
 276 if not get_option('b_pie')
 277   qemu_common_flags += cc.get_supported_arguments('-fno-pie', '-no-pie')
 278 endif
 279
 280 if not get_option('stack_protector').disabled()
 281   stack_protector_probe = '''
 282     int main(int argc, char *argv[])
 283     {
 284       char arr[64], *p = arr, *c = argv[argc - 1];
 285       while (*c) {
 286           *p++ = *c++;
 287       }
 288       return 0;
 289     }'''
 290   have_stack_protector = false
 291   foreach arg : ['-fstack-protector-strong', '-fstack-protector-all']
 292     # We need to check both a compile and a link, since some compiler
 293     # setups fail only on a .c->.o compile and some only at link time
 294     if cc.compiles(stack_protector_probe, args: ['-Werror', arg]) and \
 295        cc.links(stack_protector_probe, args: ['-Werror', arg])
 296       have_stack_protector = true
 297       qemu_cflags += arg
 298       qemu_ldflags += arg
 299       break
 300     endif
 301   endforeach
 302   get_option('stack_protector') \
 303     .require(have_stack_protector, error_message: 'Stack protector not supported')
 304 endif
 305
 306 coroutine_backend = get_option('coroutine_backend')
 307 ucontext_probe = '''
 308   #include <ucontext.h>
 309   #ifdef __stub_makecontext
 310   #error Ignoring glibc stub makecontext which will always fail
 311   #endif
 312   int main(void) { makecontext(0, 0, 0); return 0; }'''
 313
 314 # On Windows the only valid backend is the Windows specific one.
 315 # For POSIX prefer ucontext, but it's not always possible. The fallback
 316 # is sigcontext.
 317 supported_backends = []
 318 if targetos == 'windows'
 319   supported_backends += ['windows']
 320 else
 321   if targetos != 'darwin' and cc.links(ucontext_probe)
 322     supported_backends += ['ucontext']
 323   endif
 324   supported_backends += ['sigaltstack']
 325 endif
 326
 327 if coroutine_backend == 'auto'
 328   coroutine_backend = supported_backends[0]
 329 elif coroutine_backend not in supported_backends
 330   error('"@0@" backend requested but not available.  Available backends: @1@' \
 331         .format(coroutine_backend, ', '.join(supported_backends)))
 332 endif
 333
 334 # Compiles if SafeStack *not* enabled
 335 safe_stack_probe = '''
 336   int main(void)
 337   {
 338   #if defined(__has_feature)
 339   #if __has_feature(safe_stack)
 340   #error SafeStack Enabled
 341   #endif
 342   #endif
 343       return 0;
 344   }'''
 345 if get_option('safe_stack') != not cc.compiles(safe_stack_probe)
 346   safe_stack_arg = get_option('safe_stack') ? '-fsanitize=safe-stack' : '-fno-sanitize=safe-stack'
 347   if get_option('safe_stack') != not cc.compiles(safe_stack_probe, args: safe_stack_arg)
 348     error(get_option('safe_stack') \
 349           ? 'SafeStack not supported by your compiler' \
 350           : 'Cannot disable SafeStack')
 351   endif
 352   qemu_cflags += safe_stack_arg
 353   qemu_ldflags += safe_stack_arg
 354 endif
 355 if get_option('safe_stack') and coroutine_backend != 'ucontext'
 356   error('SafeStack is only supported with the ucontext coroutine backend')
 357 endif
 358
 359 if get_option('sanitizers')
 360   if cc.has_argument('-fsanitize=address')
 361     qemu_cflags = ['-fsanitize=address'] + qemu_cflags
 362     qemu_ldflags = ['-fsanitize=address'] + qemu_ldflags
 363   endif
 364
 365   # Detect static linking issue with ubsan - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
 366   if cc.links('int main(int argc, char **argv) { return argc + 1; }',
 367               args: [qemu_ldflags, '-fsanitize=undefined'])
 368     qemu_cflags = ['-fsanitize=undefined'] + qemu_cflags
 369     qemu_ldflags = ['-fsanitize=undefined'] + qemu_ldflags
 370   endif
 371 endif
 372
 373 # Thread sanitizer is, for now, much noisier than the other sanitizers;
 374 # keep it separate until that is not the case.
 375 if get_option('tsan')
 376   if get_option('sanitizers')
 377     error('TSAN is not supported with other sanitizers')
 378   endif
 379   if not cc.has_function('__tsan_create_fiber',
 380                          args: '-fsanitize=thread',
 381                          prefix: '#include <sanitizer/tsan_interface.h>')
 382     error('Cannot enable TSAN due to missing fiber annotation interface')
 383   endif
 384   qemu_cflags = ['-fsanitize=thread'] + qemu_cflags
 385   qemu_ldflags = ['-fsanitize=thread'] + qemu_ldflags
 386 endif
 387
 388 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
 389 # The combination is known as "full relro", because .got.plt is read-only too.
 390 qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
 391
 392 if targetos == 'windows'
 393   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
 394   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
 395 endif
 396
 397 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
 398 if targetos != 'sunos' and not get_option('tsan')
 399   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--warn-common')
 400 endif
 401
 402 if get_option('fuzzing')
 403   # Specify a filter to only instrument code that is directly related to
 404   # virtual-devices.
 405   configure_file(output: 'instrumentation-filter',
 406                  input: 'scripts/oss-fuzz/instrumentation-filter-template',
 407                  copy: true)
 408
 409   if cc.compiles('int main () { return 0; }',
 410                   name: '-fsanitize-coverage-allowlist=/dev/null',
 411                  args: ['-fsanitize-coverage-allowlist=/dev/null',
 412                         '-fsanitize-coverage=trace-pc'] )
 413     qemu_common_flags += ['-fsanitize-coverage-allowlist=instrumentation-filter']
 414   endif
 415
 416   if get_option('fuzzing_engine') == ''
 417     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
 418     # compiled code.  To build non-fuzzer binaries with --enable-fuzzing, link
 419     # everything with fsanitize=fuzzer-no-link. Otherwise, the linker will be
 420     # unable to bind the fuzzer-related callbacks added by instrumentation.
 421     qemu_common_flags += ['-fsanitize=fuzzer-no-link']
 422     qemu_ldflags += ['-fsanitize=fuzzer-no-link']
 423     # For the actual fuzzer binaries, we need to link against the libfuzzer
 424     # library. They need to be configurable, to support OSS-Fuzz
 425     fuzz_exe_ldflags = ['-fsanitize=fuzzer']
 426   else
 427     # LIB_FUZZING_ENGINE was set; assume we are running on OSS-Fuzz, and
 428     # the needed CFLAGS have already been provided
 429     fuzz_exe_ldflags = get_option('fuzzing_engine').split()
 430   endif
 431 endif
 432
 433 add_global_arguments(qemu_common_flags, native: false, language: all_languages)
 434 add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
 435
 436 # Collect warnings that we want to enable
 437
 438 warn_flags = [
 439   '-Wundef',
 440   '-Wwrite-strings',
 441   '-Wmissing-prototypes',
 442   '-Wstrict-prototypes',
 443   '-Wredundant-decls',
 444   '-Wold-style-declaration',
 445   '-Wold-style-definition',
 446   '-Wtype-limits',
 447   '-Wformat-security',
 448   '-Wformat-y2k',
 449   '-Winit-self',
 450   '-Wignored-qualifiers',
 451   '-Wempty-body',
 452   '-Wnested-externs',
 453   '-Wendif-labels',
 454   '-Wexpansion-to-defined',
 455   '-Wimplicit-fallthrough=2',
 456   '-Wmissing-format-attribute',
 457   '-Wno-initializer-overrides',
 458   '-Wno-missing-include-dirs',
 459   '-Wno-shift-negative-value',
 460   '-Wno-string-plus-int',
 461   '-Wno-typedef-redefinition',
 462   '-Wno-tautological-type-limit-compare',
 463   '-Wno-psabi',
 464   '-Wno-gnu-variable-sized-type-not-at-end',
 465 ]
 466
 467 if targetos != 'darwin'
 468   warn_flags += ['-Wthread-safety']
 469 endif
 470
 471 # Set up C++ compiler flags
 472 qemu_cxxflags = []
 473 if 'cpp' in all_languages
 474   qemu_cxxflags = ['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'] + qemu_cflags
 475 endif
 476
 477 add_project_arguments(qemu_cflags, native: false, language: 'c')
 478 add_project_arguments(cc.get_supported_arguments(warn_flags), native: false, language: 'c')
 479 if 'cpp' in all_languages
 480   add_project_arguments(qemu_cxxflags, native: false, language: 'cpp')
 481   add_project_arguments(cxx.get_supported_arguments(warn_flags), native: false, language: 'cpp')
 482 endif
 483 if 'objc' in all_languages
 484   # Note sanitizer flags are not applied to Objective-C sources!
 485   add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
 486 endif
 487 if targetos == 'linux'
 488   add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
 489                         '-isystem', 'linux-headers',
 490                         language: all_languages)
 491 endif
 492
 493 add_project_arguments('-iquote', '.',
 494                       '-iquote', meson.current_source_dir(),
 495                       '-iquote', meson.current_source_dir() / 'include',
 496                       language: all_languages)
 497
 498 # If a host-specific include directory exists, list that first...
 499 host_include = meson.current_source_dir() / 'host/include/'
 500 if fs.is_dir(host_include / host_arch)
 501   add_project_arguments('-iquote', host_include / host_arch,
 502                         language: all_languages)
 503 endif
 504 # ... followed by the generic fallback.
 505 add_project_arguments('-iquote', host_include / 'generic',
 506                       language: all_languages)
 507
 508 sparse = find_program('cgcc', required: get_option('sparse'))
 509 if sparse.found()
 510   run_target('sparse',
 511              command: [find_program('scripts/check_sparse.py'),
 512                        'compile_commands.json', sparse.full_path(), '-Wbitwise',
 513                        '-Wno-transparent-union', '-Wno-old-initializer',
 514                        '-Wno-non-pointer-null'])
 515 endif
 516
 517 ###########################################
 518 # Target-specific checks and dependencies #
 519 ###########################################
 520
 521 # Fuzzing
 522 if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
 523     not cc.links('''
 524           #include <stdint.h>
 525           #include <sys/types.h>
 526           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 527           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 528         ''',
 529         args: ['-Werror', '-fsanitize=fuzzer'])
 530   error('Your compiler does not support -fsanitize=fuzzer')
 531 endif
 532
 533 # Tracing backends
 534 if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
 535   error('ftrace is supported only on Linux')
 536 endif
 537 if 'syslog' in get_option('trace_backends') and not cc.compiles('''
 538     #include <syslog.h>
 539     int main(void) {
 540         openlog("qemu", LOG_PID, LOG_DAEMON);
 541         syslog(LOG_INFO, "configure");
 542         return 0;
 543     }''')
 544   error('syslog is not supported on this system')
 545 endif
 546
 547 # Miscellaneous Linux-only features
 548 get_option('mpath') \
 549   .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
 550
 551 multiprocess_allowed = get_option('multiprocess') \
 552   .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
 553   .allowed()
 554
 555 vfio_user_server_allowed = get_option('vfio_user_server') \
 556   .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
 557   .allowed()
 558
 559 have_tpm = get_option('tpm') \
 560   .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
 561   .allowed()
 562
 563 # vhost
 564 have_vhost_user = get_option('vhost_user') \
 565   .disable_auto_if(targetos != 'linux') \
 566   .require(targetos != 'windows',
 567            error_message: 'vhost-user is not available on Windows').allowed()
 568 have_vhost_vdpa = get_option('vhost_vdpa') \
 569   .require(targetos == 'linux',
 570            error_message: 'vhost-vdpa is only available on Linux').allowed()
 571 have_vhost_kernel = get_option('vhost_kernel') \
 572   .require(targetos == 'linux',
 573            error_message: 'vhost-kernel is only available on Linux').allowed()
 574 have_vhost_user_crypto = get_option('vhost_crypto') \
 575   .require(have_vhost_user,
 576            error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
 577
 578 have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
 579
 580 have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
 581 have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
 582 have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
 583 have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
 584
 585 # Target-specific libraries and flags
 586 libm = cc.find_library('m', required: false)
 587 threads = dependency('threads')
 588 util = cc.find_library('util', required: false)
 589 winmm = []
 590 socket = []
 591 version_res = []
 592 coref = []
 593 iokit = []
 594 emulator_link_args = []
 595 nvmm =not_found
 596 hvf = not_found
 597 midl = not_found
 598 widl = not_found
 599 pathcch = not_found
 600 host_dsosuf = '.so'
 601 if targetos == 'windows'
 602   midl = find_program('midl', required: false)
 603   widl = find_program('widl', required: false)
 604   pathcch = cc.find_library('pathcch')
 605   socket = cc.find_library('ws2_32')
 606   winmm = cc.find_library('winmm')
 607
 608   win = import('windows')
 609   version_res = win.compile_resources('version.rc',
 610                                       depend_files: files('pc-bios/qemu-nsis.ico'),
 611                                       include_directories: include_directories('.'))
 612   host_dsosuf = '.dll'
 613 elif targetos == 'darwin'
 614   coref = dependency('appleframeworks', modules: 'CoreFoundation')
 615   iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
 616   host_dsosuf = '.dylib'
 617 elif targetos == 'sunos'
 618   socket = [cc.find_library('socket'),
 619             cc.find_library('nsl'),
 620             cc.find_library('resolv')]
 621 elif targetos == 'haiku'
 622   socket = [cc.find_library('posix_error_mapper'),
 623             cc.find_library('network'),
 624             cc.find_library('bsd')]
 625 elif targetos == 'openbsd'
 626   if get_option('tcg').allowed() and target_dirs.length() > 0
 627     # Disable OpenBSD W^X if available
 628     emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
 629   endif
 630 endif
 631
 632 # Target-specific configuration of accelerators
 633 accelerators = []
 634 if get_option('kvm').allowed() and targetos == 'linux'
 635   accelerators += 'CONFIG_KVM'
 636 endif
 637 if get_option('whpx').allowed() and targetos == 'windows'
 638   if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
 639     error('WHPX requires 64-bit host')
 640   elif cc.has_header('winhvplatform.h', required: get_option('whpx')) and \
 641        cc.has_header('winhvemulation.h', required: get_option('whpx'))
 642     accelerators += 'CONFIG_WHPX'
 643   endif
 644 endif
 645 if get_option('hvf').allowed()
 646   hvf = dependency('appleframeworks', modules: 'Hypervisor',
 647                    required: get_option('hvf'))
 648   if hvf.found()
 649     accelerators += 'CONFIG_HVF'
 650   endif
 651 endif
 652 if targetos == 'netbsd'
 653   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
 654   if nvmm.found()
 655     accelerators += 'CONFIG_NVMM'
 656   endif
 657 endif
 658
 659 tcg_arch = host_arch
 660 if get_option('tcg').allowed()
 661   if host_arch == 'unknown'
 662     if not get_option('tcg_interpreter')
 663       error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
 664     endif
 665   elif get_option('tcg_interpreter')
 666     warning('Use of the TCG interpreter is not recommended on this host')
 667     warning('architecture. There is a native TCG execution backend available')
 668     warning('which provides substantially better performance and reliability.')
 669     warning('It is strongly recommended to remove the --enable-tcg-interpreter')
 670     warning('configuration option on this architecture to use the native')
 671     warning('backend.')
 672   endif
 673   if get_option('tcg_interpreter')
 674     tcg_arch = 'tci'
 675   elif host_arch == 'x86_64'
 676     tcg_arch = 'i386'
 677   elif host_arch == 'ppc64'
 678     tcg_arch = 'ppc'
 679   endif
 680   add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
 681                         language: all_languages)
 682
 683   accelerators += 'CONFIG_TCG'
 684 endif
 685
 686 if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
 687   error('KVM not available on this platform')
 688 endif
 689 if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
 690   error('HVF not available on this platform')
 691 endif
 692 if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
 693   error('NVMM not available on this platform')
 694 endif
 695 if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
 696   error('WHPX not available on this platform')
 697 endif
 698
 699 ################
 700 # Dependencies #
 701 ################
 702
 703 # When bumping glib minimum version, please check also whether to increase
 704 # the _WIN32_WINNT setting in osdep.h according to the value from glib
 705 glib_req_ver = '>=2.56.0'
 706 glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
 707                     method: 'pkg-config')
 708 glib_cflags = []
 709 if enable_modules
 710   gmodule = dependency('gmodule-export-2.0', version: glib_req_ver, required: true,
 711                        method: 'pkg-config')
 712 elif get_option('plugins')
 713   gmodule = dependency('gmodule-no-export-2.0', version: glib_req_ver, required: true,
 714                        method: 'pkg-config')
 715 else
 716   gmodule = not_found
 717 endif
 718
 719 # This workaround is required due to a bug in pkg-config file for glib as it
 720 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
 721 if targetos == 'windows' and get_option('prefer_static')
 722   glib_cflags += ['-DGLIB_STATIC_COMPILATION']
 723 endif
 724
 725 # Sanity check that the current size_t matches the
 726 # size that glib thinks it should be. This catches
 727 # problems on multi-arch where people try to build
 728 # 32-bit QEMU while pointing at 64-bit glib headers
 729
 730 if not cc.compiles('''
 731   #include <glib.h>
 732   #include <unistd.h>
 733
 734   #define QEMU_BUILD_BUG_ON(x) \
 735   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
 736
 737   int main(void) {
 738      QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
 739      return 0;
 740   }''', dependencies: glib_pc, args: glib_cflags)
 741   error('''sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
 742         You probably need to set PKG_CONFIG_LIBDIR" to point
 743         to the right pkg-config files for your build target.''')
 744 endif
 745
 746 # Silence clang warnings triggered by glib < 2.57.2
 747 if not cc.compiles('''
 748   #include <glib.h>
 749   typedef struct Foo {
 750     int i;
 751   } Foo;
 752   static void foo_free(Foo *f)
 753   {
 754     g_free(f);
 755   }
 756   G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
 757   int main(void) { return 0; }''', dependencies: glib_pc, args: ['-Wunused-function', '-Werror'])
 758   glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
 759 endif
 760 glib = declare_dependency(dependencies: [glib_pc, gmodule],
 761                           compile_args: glib_cflags,
 762                           version: glib_pc.version())
 763
 764 # Check whether glib has gslice, which we have to avoid for correctness.
 765 # TODO: remove this check and the corresponding workaround (qtree) when
 766 # the minimum supported glib is >= 2.75.3
 767 glib_has_gslice = glib.version().version_compare('<2.75.3')
 768
 769 # override glib dep to include the above refinements
 770 meson.override_dependency('glib-2.0', glib)
 771
 772 # The path to glib.h is added to all compilation commands.
 773 add_project_dependencies(glib.partial_dependency(compile_args: true, includes: true),
 774                          native: false, language: all_languages)
 775
 776 gio = not_found
 777 gdbus_codegen = not_found
 778 gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
 779 if not get_option('gio').auto() or have_system
 780   gio = dependency('gio-2.0', required: get_option('gio'),
 781                    method: 'pkg-config')
 782   if gio.found() and not cc.links('''
 783     #include <gio/gio.h>
 784     int main(void)
 785     {
 786       g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
 787       return 0;
 788     }''', dependencies: [glib, gio])
 789     if get_option('gio').enabled()
 790       error('The installed libgio is broken for static linking')
 791     endif
 792     gio = not_found
 793   endif
 794   if gio.found()
 795     gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
 796                                  required: get_option('gio'))
 797     gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
 798                           method: 'pkg-config')
 799     gio = declare_dependency(dependencies: [gio, gio_unix],
 800                              version: gio.version())
 801   endif
 802 endif
 803 if gdbus_codegen.found() and get_option('cfi')
 804   gdbus_codegen = not_found
 805   gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
 806 endif
 807
 808 xml_pp = find_program('scripts/xml-preprocess.py')
 809
 810 lttng = not_found
 811 if 'ust' in get_option('trace_backends')
 812   lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
 813                      method: 'pkg-config')
 814 endif
 815 pixman = not_found
 816 if have_system or have_tools
 817   pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
 818                       method: 'pkg-config')
 819 endif
 820 zlib = dependency('zlib', required: true)
 821
 822 libaio = not_found
 823 if not get_option('linux_aio').auto() or have_block
 824   libaio = cc.find_library('aio', has_headers: ['libaio.h'],
 825                            required: get_option('linux_aio'))
 826 endif
 827
 828 linux_io_uring_test = '''
 829   #include <liburing.h>
 830   #include <linux/errqueue.h>
 831
 832   int main(void) { return 0; }'''
 833
 834 linux_io_uring = not_found
 835 if not get_option('linux_io_uring').auto() or have_block
 836   linux_io_uring = dependency('liburing', version: '>=0.3',
 837                               required: get_option('linux_io_uring'),
 838                               method: 'pkg-config')
 839   if not cc.links(linux_io_uring_test)
 840     linux_io_uring = not_found
 841   endif
 842 endif
 843
 844 libnfs = not_found
 845 if not get_option('libnfs').auto() or have_block
 846   libnfs = dependency('libnfs', version: '>=1.9.3',
 847                       required: get_option('libnfs'),
 848                       method: 'pkg-config')
 849 endif
 850
 851 libattr_test = '''
 852   #include <stddef.h>
 853   #include <sys/types.h>
 854   #ifdef CONFIG_LIBATTR
 855   #include <attr/xattr.h>
 856   #else
 857   #include <sys/xattr.h>
 858   #endif
 859   int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
 860
 861 libattr = not_found
 862 have_old_libattr = false
 863 if get_option('attr').allowed()
 864   if cc.links(libattr_test)
 865     libattr = declare_dependency()
 866   else
 867     libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
 868                               required: get_option('attr'))
 869     if libattr.found() and not \
 870       cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
 871       libattr = not_found
 872       if get_option('attr').enabled()
 873         error('could not link libattr')
 874       else
 875         warning('could not link libattr, disabling')
 876       endif
 877     else
 878       have_old_libattr = libattr.found()
 879     endif
 880   endif
 881 endif
 882
 883 cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
 884                    required: get_option('cocoa'))
 885
 886 vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
 887 if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
 888                                               'VMNET_BRIDGED_MODE',
 889                                               dependencies: vmnet)
 890   vmnet = not_found
 891   if get_option('vmnet').enabled()
 892     error('vmnet.framework API is outdated')
 893   else
 894     warning('vmnet.framework API is outdated, disabling')
 895   endif
 896 endif
 897
 898 seccomp = not_found
 899 seccomp_has_sysrawrc = false
 900 if not get_option('seccomp').auto() or have_system or have_tools
 901   seccomp = dependency('libseccomp', version: '>=2.3.0',
 902                        required: get_option('seccomp'),
 903                        method: 'pkg-config')
 904   if seccomp.found()
 905     seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
 906                                                 'SCMP_FLTATR_API_SYSRAWRC',
 907                                                 dependencies: seccomp)
 908   endif
 909 endif
 910
 911 libcap_ng = not_found
 912 if not get_option('cap_ng').auto() or have_system or have_tools
 913   libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
 914                               required: get_option('cap_ng'))
 915 endif
 916 if libcap_ng.found() and not cc.links('''
 917    #include <cap-ng.h>
 918    int main(void)
 919    {
 920      capng_capability_to_name(CAPNG_EFFECTIVE);
 921      return 0;
 922    }''', dependencies: libcap_ng)
 923   libcap_ng = not_found
 924   if get_option('cap_ng').enabled()
 925     error('could not link libcap-ng')
 926   else
 927     warning('could not link libcap-ng, disabling')
 928   endif
 929 endif
 930
 931 if get_option('xkbcommon').auto() and not have_system and not have_tools
 932   xkbcommon = not_found
 933 else
 934   xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
 935                          method: 'pkg-config')
 936 endif
 937
 938 slirp = not_found
 939 if not get_option('slirp').auto() or have_system
 940   slirp = dependency('slirp', required: get_option('slirp'),
 941                      method: 'pkg-config')
 942   # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
 943   # it passes function pointers within libslirp as callbacks for timers.
 944   # When using a system-wide shared libslirp, the type information for the
 945   # callback is missing and the timer call produces a false positive with CFI.
 946   # Do not use the "version" keyword argument to produce a better error.
 947   # with control-flow integrity.
 948   if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
 949     if get_option('slirp').enabled()
 950       error('Control-Flow Integrity requires libslirp 4.7.')
 951     else
 952       warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
 953       slirp = not_found
 954     endif
 955   endif
 956 endif
 957
 958 vde = not_found
 959 if not get_option('vde').auto() or have_system or have_tools
 960   vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
 961                            required: get_option('vde'))
 962 endif
 963 if vde.found() and not cc.links('''
 964    #include <libvdeplug.h>
 965    int main(void)
 966    {
 967      struct vde_open_args a = {0, 0, 0};
 968      char s[] = "";
 969      vde_open(s, s, &a);
 970      return 0;
 971    }''', dependencies: vde)
 972   vde = not_found
 973   if get_option('cap_ng').enabled()
 974     error('could not link libvdeplug')
 975   else
 976     warning('could not link libvdeplug, disabling')
 977   endif
 978 endif
 979
 980 pulse = not_found
 981 if not get_option('pa').auto() or (targetos == 'linux' and have_system)
 982   pulse = dependency('libpulse', required: get_option('pa'),
 983                      method: 'pkg-config')
 984 endif
 985 alsa = not_found
 986 if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
 987   alsa = dependency('alsa', required: get_option('alsa'),
 988                     method: 'pkg-config')
 989 endif
 990 jack = not_found
 991 if not get_option('jack').auto() or have_system
 992   jack = dependency('jack', required: get_option('jack'),
 993                     method: 'pkg-config')
 994 endif
 995 pipewire = not_found
 996 if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
 997   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
 998                     required: get_option('pipewire'),
 999                     method: 'pkg-config')
1000 endif
1001 sndio = not_found
1002 if not get_option('sndio').auto() or have_system
1003   sndio = dependency('sndio', required: get_option('sndio'),
1004                     method: 'pkg-config')
1005 endif
1006
1007 spice_protocol = not_found
1008 if not get_option('spice_protocol').auto() or have_system
1009   spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
1010                               required: get_option('spice_protocol'),
1011                               method: 'pkg-config')
1012 endif
1013 spice = not_found
1014 if not get_option('spice').auto() or have_system
1015   spice = dependency('spice-server', version: '>=0.14.0',
1016                      required: get_option('spice'),
1017                      method: 'pkg-config')
1018 endif
1019 spice_headers = spice.partial_dependency(compile_args: true, includes: true)
1020
1021 rt = cc.find_library('rt', required: false)
1022
1023 libiscsi = not_found
1024 if not get_option('libiscsi').auto() or have_block
1025   libiscsi = dependency('libiscsi', version: '>=1.9.0',
1026                          required: get_option('libiscsi'),
1027                          method: 'pkg-config')
1028 endif
1029 zstd = not_found
1030 if not get_option('zstd').auto() or have_block
1031   zstd = dependency('libzstd', version: '>=1.4.0',
1032                     required: get_option('zstd'),
1033                     method: 'pkg-config')
1034 endif
1035 virgl = not_found
1036
1037 have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
1038 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
1039   virgl = dependency('virglrenderer',
1040                      method: 'pkg-config',
1041                      required: get_option('virglrenderer'))
1042   if virgl.found()
1043     config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
1044                          cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
1045                                        prefix: '#include <virglrenderer.h>',
1046                                        dependencies: virgl))
1047   endif
1048 endif
1049 rutabaga = not_found
1050 if not get_option('rutabaga_gfx').auto() or have_system or have_vhost_user_gpu
1051   rutabaga = dependency('rutabaga_gfx_ffi',
1052                          method: 'pkg-config',
1053                          required: get_option('rutabaga_gfx'))
1054 endif
1055 blkio = not_found
1056 if not get_option('blkio').auto() or have_block
1057   blkio = dependency('blkio',
1058                      method: 'pkg-config',
1059                      required: get_option('blkio'))
1060 endif
1061 curl = not_found
1062 if not get_option('curl').auto() or have_block
1063   curl = dependency('libcurl', version: '>=7.29.0',
1064                     method: 'pkg-config',
1065                     required: get_option('curl'))
1066 endif
1067 libudev = not_found
1068 if targetos == 'linux' and (have_system or have_tools)
1069   libudev = dependency('libudev',
1070                        method: 'pkg-config',
1071                        required: get_option('libudev'))
1072 endif
1073
1074 mpathlibs = [libudev]
1075 mpathpersist = not_found
1076 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1077   mpath_test_source = '''
1078     #include <libudev.h>
1079     #include <mpath_persist.h>
1080     unsigned mpath_mx_alloc_len = 1024;
1081     int logsink;
1082     static struct config *multipath_conf;
1083     extern struct udev *udev;
1084     extern struct config *get_multipath_config(void);
1085     extern void put_multipath_config(struct config *conf);
1086     struct udev *udev;
1087     struct config *get_multipath_config(void) { return multipath_conf; }
1088     void put_multipath_config(struct config *conf) { }
1089     int main(void) {
1090         udev = udev_new();
1091         multipath_conf = mpath_lib_init();
1092         return 0;
1093     }'''
1094   libmpathpersist = cc.find_library('mpathpersist',
1095                                     required: get_option('mpath'))
1096   if libmpathpersist.found()
1097     mpathlibs += libmpathpersist
1098     if get_option('prefer_static')
1099       mpathlibs += cc.find_library('devmapper',
1100                                      required: get_option('mpath'))
1101     endif
1102     mpathlibs += cc.find_library('multipath',
1103                                  required: get_option('mpath'))
1104     foreach lib: mpathlibs
1105       if not lib.found()
1106         mpathlibs = []
1107         break
1108       endif
1109     endforeach
1110     if mpathlibs.length() == 0
1111       msg = 'Dependencies missing for libmpathpersist'
1112     elif cc.links(mpath_test_source, dependencies: mpathlibs)
1113       mpathpersist = declare_dependency(dependencies: mpathlibs)
1114     else
1115       msg = 'Cannot detect libmpathpersist API'
1116     endif
1117     if not mpathpersist.found()
1118       if get_option('mpath').enabled()
1119         error(msg)
1120       else
1121         warning(msg + ', disabling')
1122       endif
1123     endif
1124   endif
1125 endif
1126
1127 iconv = not_found
1128 curses = not_found
1129 if have_system and get_option('curses').allowed()
1130   curses_test = '''
1131     #if defined(__APPLE__) || defined(__OpenBSD__)
1132     #define _XOPEN_SOURCE_EXTENDED 1
1133     #endif
1134     #include <locale.h>
1135     #include <curses.h>
1136     #include <wchar.h>
1137     int main(void) {
1138       wchar_t wch = L'w';
1139       setlocale(LC_ALL, "");
1140       resize_term(0, 0);
1141       addwstr(L"wide chars\n");
1142       addnwstr(&wch, 1);
1143       add_wch(WACS_DEGREE);
1144       return 0;
1145     }'''
1146
1147   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1148   curses = dependency(curses_dep_list,
1149                       required: false,
1150                       method: 'pkg-config')
1151   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1152   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1153   if curses.found()
1154     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1155       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1156                                   version: curses.version())
1157     else
1158       msg = 'curses package not usable'
1159       curses = not_found
1160     endif
1161   endif
1162   if not curses.found()
1163     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1164     if targetos != 'windows' and not has_curses_h
1165       message('Trying with /usr/include/ncursesw')
1166       curses_compile_args += ['-I/usr/include/ncursesw']
1167       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1168     endif
1169     if has_curses_h
1170       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1171       foreach curses_libname : curses_libname_list
1172         libcurses = cc.find_library(curses_libname,
1173                                     required: false)
1174         if libcurses.found()
1175           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1176             curses = declare_dependency(compile_args: curses_compile_args,
1177                                         dependencies: [libcurses])
1178             break
1179           else
1180             msg = 'curses library not usable'
1181           endif
1182         endif
1183       endforeach
1184     endif
1185   endif
1186   if get_option('iconv').allowed()
1187     foreach link_args : [ ['-liconv'], [] ]
1188       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1189       # We need to use libiconv if available because mixing libiconv's headers with
1190       # the system libc does not work.
1191       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1192       # included in the command line and libiconv will not be found.
1193       if cc.links('''
1194         #include <iconv.h>
1195         int main(void) {
1196           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1197           return conv != (iconv_t) -1;
1198         }''', args: link_args, dependencies: glib)
1199         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1200         break
1201       endif
1202     endforeach
1203   endif
1204   if curses.found() and not iconv.found()
1205     if get_option('iconv').enabled()
1206       error('iconv not available')
1207     endif
1208     msg = 'iconv required for curses UI but not available'
1209     curses = not_found
1210   endif
1211   if not curses.found() and msg != ''
1212     if get_option('curses').enabled()
1213       error(msg)
1214     else
1215       warning(msg + ', disabling')
1216     endif
1217   endif
1218 endif
1219
1220 brlapi = not_found
1221 if not get_option('brlapi').auto() or have_system
1222   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1223                          required: get_option('brlapi'))
1224   if brlapi.found() and not cc.links('''
1225      #include <brlapi.h>
1226      #include <stddef.h>
1227      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1228     brlapi = not_found
1229     if get_option('brlapi').enabled()
1230       error('could not link brlapi')
1231     else
1232       warning('could not link brlapi, disabling')
1233     endif
1234   endif
1235 endif
1236
1237 sdl = not_found
1238 if not get_option('sdl').auto() or have_system
1239   sdl = dependency('sdl2', required: get_option('sdl'))
1240   sdl_image = not_found
1241 endif
1242 if sdl.found()
1243   # Some versions of SDL have problems with -Wundef
1244   if not cc.compiles('''
1245                      #include <SDL.h>
1246                      #include <SDL_syswm.h>
1247                      int main(int argc, char *argv[]) { return 0; }
1248                      ''', dependencies: sdl, args: '-Werror=undef')
1249     sdl = declare_dependency(compile_args: '-Wno-undef',
1250                              dependencies: sdl,
1251                              version: sdl.version())
1252   endif
1253   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1254                          method: 'pkg-config')
1255 else
1256   if get_option('sdl_image').enabled()
1257     error('sdl-image required, but SDL was @0@'.format(
1258           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1259   endif
1260   sdl_image = not_found
1261 endif
1262
1263 rbd = not_found
1264 if not get_option('rbd').auto() or have_block
1265   librados = cc.find_library('rados', required: get_option('rbd'))
1266   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1267                            required: get_option('rbd'))
1268   if librados.found() and librbd.found()
1269     if cc.links('''
1270       #include <stdio.h>
1271       #include <rbd/librbd.h>
1272       int main(void) {
1273         rados_t cluster;
1274         rados_create(&cluster, NULL);
1275         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1276         #error
1277         #endif
1278         return 0;
1279       }''', dependencies: [librbd, librados])
1280       rbd = declare_dependency(dependencies: [librbd, librados])
1281     elif get_option('rbd').enabled()
1282       error('librbd >= 1.12.0 required')
1283     else
1284       warning('librbd >= 1.12.0 not found, disabling')
1285     endif
1286   endif
1287 endif
1288
1289 glusterfs = not_found
1290 glusterfs_ftruncate_has_stat = false
1291 glusterfs_iocb_has_stat = false
1292 if not get_option('glusterfs').auto() or have_block
1293   glusterfs = dependency('glusterfs-api', version: '>=3',
1294                          required: get_option('glusterfs'),
1295                          method: 'pkg-config')
1296   if glusterfs.found()
1297     glusterfs_ftruncate_has_stat = cc.links('''
1298       #include <glusterfs/api/glfs.h>
1299
1300       int
1301       main(void)
1302       {
1303           /* new glfs_ftruncate() passes two additional args */
1304           return glfs_ftruncate(NULL, 0, NULL, NULL);
1305       }
1306     ''', dependencies: glusterfs)
1307     glusterfs_iocb_has_stat = cc.links('''
1308       #include <glusterfs/api/glfs.h>
1309
1310       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1311       static void
1312       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1313       {}
1314
1315       int
1316       main(void)
1317       {
1318           glfs_io_cbk iocb = &glusterfs_iocb;
1319           iocb(NULL, 0 , NULL, NULL, NULL);
1320           return 0;
1321       }
1322     ''', dependencies: glusterfs)
1323   endif
1324 endif
1325
1326 libssh = not_found
1327 if not get_option('libssh').auto() or have_block
1328   libssh = dependency('libssh', version: '>=0.8.7',
1329                     method: 'pkg-config',
1330                     required: get_option('libssh'))
1331 endif
1332
1333 libbzip2 = not_found
1334 if not get_option('bzip2').auto() or have_block
1335   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1336                              required: get_option('bzip2'))
1337   if libbzip2.found() and not cc.links('''
1338      #include <bzlib.h>
1339      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1340     libbzip2 = not_found
1341     if get_option('bzip2').enabled()
1342       error('could not link libbzip2')
1343     else
1344       warning('could not link libbzip2, disabling')
1345     endif
1346   endif
1347 endif
1348
1349 liblzfse = not_found
1350 if not get_option('lzfse').auto() or have_block
1351   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1352                              required: get_option('lzfse'))
1353 endif
1354 if liblzfse.found() and not cc.links('''
1355    #include <lzfse.h>
1356    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1357   liblzfse = not_found
1358   if get_option('lzfse').enabled()
1359     error('could not link liblzfse')
1360   else
1361     warning('could not link liblzfse, disabling')
1362   endif
1363 endif
1364
1365 oss = not_found
1366 if get_option('oss').allowed() and have_system
1367   if not cc.has_header('sys/soundcard.h')
1368     # not found
1369   elif targetos == 'netbsd'
1370     oss = cc.find_library('ossaudio', required: get_option('oss'))
1371   else
1372     oss = declare_dependency()
1373   endif
1374
1375   if not oss.found()
1376     if get_option('oss').enabled()
1377       error('OSS not found')
1378     endif
1379   endif
1380 endif
1381 dsound = not_found
1382 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1383   if cc.has_header('dsound.h')
1384     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1385   endif
1386
1387   if not dsound.found()
1388     if get_option('dsound').enabled()
1389       error('DirectSound not found')
1390     endif
1391   endif
1392 endif
1393
1394 coreaudio = not_found
1395 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1396   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1397                          required: get_option('coreaudio'))
1398 endif
1399
1400 opengl = not_found
1401 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1402   epoxy = dependency('epoxy', method: 'pkg-config',
1403                       required: get_option('opengl'))
1404   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1405     opengl = epoxy
1406   elif get_option('opengl').enabled()
1407     error('epoxy/egl.h not found')
1408   endif
1409 endif
1410 gbm = not_found
1411 if (have_system or have_tools) and (virgl.found() or opengl.found())
1412   gbm = dependency('gbm', method: 'pkg-config', required: false)
1413 endif
1414 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1415
1416 gnutls = not_found
1417 gnutls_crypto = not_found
1418 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1419   # For general TLS support our min gnutls matches
1420   # that implied by our platform support matrix
1421   #
1422   # For the crypto backends, we look for a newer
1423   # gnutls:
1424   #
1425   #   Version 3.6.8  is needed to get XTS
1426   #   Version 3.6.13 is needed to get PBKDF
1427   #   Version 3.6.14 is needed to get HW accelerated XTS
1428   #
1429   # If newer enough gnutls isn't available, we can
1430   # still use a different crypto backend to satisfy
1431   # the platform support requirements
1432   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1433                              method: 'pkg-config',
1434                              required: false)
1435   if gnutls_crypto.found()
1436     gnutls = gnutls_crypto
1437   else
1438     # Our min version if all we need is TLS
1439     gnutls = dependency('gnutls', version: '>=3.5.18',
1440                         method: 'pkg-config',
1441                         required: get_option('gnutls'))
1442   endif
1443 endif
1444
1445 # We prefer use of gnutls for crypto, unless the options
1446 # explicitly asked for nettle or gcrypt.
1447 #
1448 # If gnutls isn't available for crypto, then we'll prefer
1449 # gcrypt over nettle for performance reasons.
1450 gcrypt = not_found
1451 nettle = not_found
1452 hogweed = not_found
1453 xts = 'none'
1454
1455 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1456   error('Only one of gcrypt & nettle can be enabled')
1457 endif
1458
1459 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1460 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1461   gnutls_crypto = not_found
1462 endif
1463
1464 if not gnutls_crypto.found()
1465   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1466     gcrypt = dependency('libgcrypt', version: '>=1.8',
1467                         method: 'config-tool',
1468                         required: get_option('gcrypt'))
1469     # Debian has removed -lgpg-error from libgcrypt-config
1470     # as it "spreads unnecessary dependencies" which in
1471     # turn breaks static builds...
1472     if gcrypt.found() and get_option('prefer_static')
1473       gcrypt = declare_dependency(dependencies:
1474         [gcrypt,
1475          cc.find_library('gpg-error', required: true)],
1476         version: gcrypt.version())
1477     endif
1478   endif
1479   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1480     nettle = dependency('nettle', version: '>=3.4',
1481                         method: 'pkg-config',
1482                         required: get_option('nettle'))
1483     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1484       xts = 'private'
1485     endif
1486   endif
1487 endif
1488
1489 gmp = dependency('gmp', required: false, method: 'pkg-config')
1490 if nettle.found() and gmp.found()
1491   hogweed = dependency('hogweed', version: '>=3.4',
1492                        method: 'pkg-config',
1493                        required: get_option('nettle'))
1494 endif
1495
1496
1497 gtk = not_found
1498 gtkx11 = not_found
1499 vte = not_found
1500 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1501
1502 if not get_option('gtk').auto() or have_system
1503   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1504                    method: 'pkg-config',
1505                    required: get_option('gtk'))
1506   if gtk.found()
1507     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1508                         method: 'pkg-config',
1509                         required: false)
1510     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1511                              version: gtk.version())
1512
1513     if not get_option('vte').auto() or have_system
1514       vte = dependency('vte-2.91',
1515                        method: 'pkg-config',
1516                        required: get_option('vte'))
1517     endif
1518   elif have_gtk_clipboard
1519     error('GTK clipboard requested, but GTK not found')
1520   endif
1521 endif
1522
1523 x11 = not_found
1524 if gtkx11.found()
1525   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1526 endif
1527 png = not_found
1528 if get_option('png').allowed() and have_system
1529    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1530                     method: 'pkg-config')
1531 endif
1532 vnc = not_found
1533 jpeg = not_found
1534 sasl = not_found
1535 if get_option('vnc').allowed() and have_system
1536   vnc = declare_dependency() # dummy dependency
1537   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1538                     method: 'pkg-config')
1539   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1540                          required: get_option('vnc_sasl'))
1541   if sasl.found()
1542     sasl = declare_dependency(dependencies: sasl,
1543                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1544   endif
1545 endif
1546
1547 pam = not_found
1548 if not get_option('auth_pam').auto() or have_system
1549   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1550                         required: get_option('auth_pam'))
1551 endif
1552 if pam.found() and not cc.links('''
1553    #include <stddef.h>
1554    #include <security/pam_appl.h>
1555    int main(void) {
1556      const char *service_name = "qemu";
1557      const char *user = "frank";
1558      const struct pam_conv pam_conv = { 0 };
1559      pam_handle_t *pamh = NULL;
1560      pam_start(service_name, user, &pam_conv, &pamh);
1561      return 0;
1562    }''', dependencies: pam)
1563   pam = not_found
1564   if get_option('auth_pam').enabled()
1565     error('could not link libpam')
1566   else
1567     warning('could not link libpam, disabling')
1568   endif
1569 endif
1570
1571 snappy = not_found
1572 if not get_option('snappy').auto() or have_system
1573   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1574                            required: get_option('snappy'))
1575 endif
1576 if snappy.found() and not cc.links('''
1577    #include <snappy-c.h>
1578    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1579   snappy = not_found
1580   if get_option('snappy').enabled()
1581     error('could not link libsnappy')
1582   else
1583     warning('could not link libsnappy, disabling')
1584   endif
1585 endif
1586
1587 lzo = not_found
1588 if not get_option('lzo').auto() or have_system
1589   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1590                         required: get_option('lzo'))
1591 endif
1592 if lzo.found() and not cc.links('''
1593    #include <lzo/lzo1x.h>
1594    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1595   lzo = not_found
1596   if get_option('lzo').enabled()
1597     error('could not link liblzo2')
1598   else
1599     warning('could not link liblzo2, disabling')
1600   endif
1601 endif
1602
1603 numa = not_found
1604 if not get_option('numa').auto() or have_system or have_tools
1605   numa = cc.find_library('numa', has_headers: ['numa.h'],
1606                               required: get_option('numa'))
1607 endif
1608 if numa.found() and not cc.links('''
1609    #include <numa.h>
1610    int main(void) { return numa_available(); }
1611    ''', dependencies: numa)
1612   numa = not_found
1613   if get_option('numa').enabled()
1614     error('could not link numa')
1615   else
1616     warning('could not link numa, disabling')
1617   endif
1618 endif
1619
1620 rdma = not_found
1621 if not get_option('rdma').auto() or have_system
1622   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1623   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1624                                required: get_option('rdma')),
1625                cc.find_library('ibverbs', required: get_option('rdma')),
1626                libumad]
1627   rdma = declare_dependency(dependencies: rdma_libs)
1628   foreach lib: rdma_libs
1629     if not lib.found()
1630       rdma = not_found
1631     endif
1632   endforeach
1633 endif
1634
1635 xen = not_found
1636 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1637   xencontrol = dependency('xencontrol', required: false,
1638                           method: 'pkg-config')
1639   if xencontrol.found()
1640     xen_pc = declare_dependency(version: xencontrol.version(),
1641       dependencies: [
1642         xencontrol,
1643         # disabler: true makes xen_pc.found() return false if any is not found
1644         dependency('xenstore', required: false,
1645                    method: 'pkg-config',
1646                    disabler: true),
1647         dependency('xenforeignmemory', required: false,
1648                    method: 'pkg-config',
1649                    disabler: true),
1650         dependency('xengnttab', required: false,
1651                    method: 'pkg-config',
1652                    disabler: true),
1653         dependency('xenevtchn', required: false,
1654                    method: 'pkg-config',
1655                    disabler: true),
1656         dependency('xendevicemodel', required: false,
1657                    method: 'pkg-config',
1658                    disabler: true),
1659         # optional, no "disabler: true"
1660         dependency('xentoolcore', required: false,
1661                    method: 'pkg-config')])
1662     if xen_pc.found()
1663       xen = xen_pc
1664     endif
1665   endif
1666   if not xen.found()
1667     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
1668     xen_libs = {
1669       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1670       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1671       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1672       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1673       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1674     }
1675     xen_deps = {}
1676     foreach ver: xen_tests
1677       # cache the various library tests to avoid polluting the logs
1678       xen_test_deps = []
1679       foreach l: xen_libs[ver]
1680         if l not in xen_deps
1681           xen_deps += { l: cc.find_library(l, required: false) }
1682         endif
1683         xen_test_deps += xen_deps[l]
1684       endforeach
1685
1686       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1687       xen_version = ver.split('.')
1688       xen_ctrl_version = xen_version[0] + \
1689         ('0' + xen_version[1]).substring(-2) + \
1690         ('0' + xen_version[2]).substring(-2)
1691       if cc.links(files('scripts/xen-detect.c'),
1692                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1693                   dependencies: xen_test_deps)
1694         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1695         break
1696       endif
1697     endforeach
1698   endif
1699   if xen.found()
1700     accelerators += 'CONFIG_XEN'
1701   elif get_option('xen').enabled()
1702     error('could not compile and link Xen test program')
1703   endif
1704 endif
1705 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1706   .require(xen.found(),
1707            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1708   .require(targetos == 'linux',
1709            error_message: 'Xen PCI passthrough not available on this platform') \
1710   .require(cpu == 'x86'  or cpu == 'x86_64',
1711            error_message: 'Xen PCI passthrough not available on this platform') \
1712   .allowed()
1713
1714
1715 cacard = not_found
1716 if not get_option('smartcard').auto() or have_system
1717   cacard = dependency('libcacard', required: get_option('smartcard'),
1718                       version: '>=2.5.1', method: 'pkg-config')
1719 endif
1720 u2f = not_found
1721 if have_system
1722   u2f = dependency('u2f-emu', required: get_option('u2f'),
1723                    method: 'pkg-config')
1724 endif
1725 canokey = not_found
1726 if have_system
1727   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1728                    method: 'pkg-config')
1729 endif
1730 usbredir = not_found
1731 if not get_option('usb_redir').auto() or have_system
1732   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1733                         version: '>=0.6', method: 'pkg-config')
1734 endif
1735 libusb = not_found
1736 if not get_option('libusb').auto() or have_system
1737   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1738                       version: '>=1.0.13', method: 'pkg-config')
1739 endif
1740
1741 libpmem = not_found
1742 if not get_option('libpmem').auto() or have_system
1743   libpmem = dependency('libpmem', required: get_option('libpmem'),
1744                        method: 'pkg-config')
1745 endif
1746 libdaxctl = not_found
1747 if not get_option('libdaxctl').auto() or have_system
1748   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1749                          version: '>=57', method: 'pkg-config')
1750 endif
1751 tasn1 = not_found
1752 if gnutls.found()
1753   tasn1 = dependency('libtasn1',
1754                      method: 'pkg-config')
1755 endif
1756 keyutils = not_found
1757 if not get_option('libkeyutils').auto() or have_block
1758   keyutils = dependency('libkeyutils', required: get_option('libkeyutils'),
1759                         method: 'pkg-config')
1760 endif
1761
1762 has_gettid = cc.has_function('gettid')
1763
1764 # libselinux
1765 selinux = dependency('libselinux',
1766                      required: get_option('selinux'),
1767                      method: 'pkg-config')
1768
1769 # Malloc tests
1770
1771 malloc = []
1772 if get_option('malloc') == 'system'
1773   has_malloc_trim = \
1774     get_option('malloc_trim').allowed() and \
1775     cc.has_function('malloc_trim', prefix: '#include <malloc.h>')
1776 else
1777   has_malloc_trim = false
1778   malloc = cc.find_library(get_option('malloc'), required: true)
1779 endif
1780 if not has_malloc_trim and get_option('malloc_trim').enabled()
1781   if get_option('malloc') == 'system'
1782     error('malloc_trim not available on this platform.')
1783   else
1784     error('malloc_trim not available with non-libc memory allocator')
1785   endif
1786 endif
1787
1788 gnu_source_prefix = '''
1789   #ifndef _GNU_SOURCE
1790   #define _GNU_SOURCE
1791   #endif
1792 '''
1793
1794 # Check whether the glibc provides STATX_BASIC_STATS
1795
1796 has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_source_prefix)
1797
1798 # Check whether statx() provides mount ID information
1799
1800 has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
1801
1802 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1803   .require(targetos == 'linux',
1804            error_message: 'vhost_user_blk_server requires linux') \
1805   .require(have_vhost_user,
1806            error_message: 'vhost_user_blk_server requires vhost-user support') \
1807   .disable_auto_if(not have_tools and not have_system) \
1808   .allowed()
1809
1810 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1811   error('Cannot enable fuse-lseek while fuse is disabled')
1812 endif
1813
1814 fuse = dependency('fuse3', required: get_option('fuse'),
1815                   version: '>=3.1', method: 'pkg-config')
1816
1817 fuse_lseek = not_found
1818 if get_option('fuse_lseek').allowed()
1819   if fuse.version().version_compare('>=3.8')
1820     # Dummy dependency
1821     fuse_lseek = declare_dependency()
1822   elif get_option('fuse_lseek').enabled()
1823     if fuse.found()
1824       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1825     else
1826       error('fuse-lseek requires libfuse, which was not found')
1827     endif
1828   endif
1829 endif
1830
1831 have_libvduse = (targetos == 'linux')
1832 if get_option('libvduse').enabled()
1833     if targetos != 'linux'
1834         error('libvduse requires linux')
1835     endif
1836 elif get_option('libvduse').disabled()
1837     have_libvduse = false
1838 endif
1839
1840 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1841 if get_option('vduse_blk_export').enabled()
1842     if targetos != 'linux'
1843         error('vduse_blk_export requires linux')
1844     elif not have_libvduse
1845         error('vduse_blk_export requires libvduse support')
1846     endif
1847 elif get_option('vduse_blk_export').disabled()
1848     have_vduse_blk_export = false
1849 endif
1850
1851 # libbpf
1852 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1853 if libbpf.found() and not cc.links('''
1854    #include <bpf/libbpf.h>
1855    int main(void)
1856    {
1857      bpf_object__destroy_skeleton(NULL);
1858      return 0;
1859    }''', dependencies: libbpf)
1860   libbpf = not_found
1861   if get_option('bpf').enabled()
1862     error('libbpf skeleton test failed')
1863   else
1864     warning('libbpf skeleton test failed, disabling')
1865   endif
1866 endif
1867
1868 # libxdp
1869 libxdp = not_found
1870 if not get_option('af_xdp').auto() or have_system
1871     libxdp = dependency('libxdp', required: get_option('af_xdp'),
1872                         version: '>=1.4.0', method: 'pkg-config')
1873 endif
1874
1875 # libdw
1876 libdw = not_found
1877 if not get_option('libdw').auto() or \
1878         (not get_option('prefer_static') and (have_system or have_user))
1879     libdw = dependency('libdw',
1880                        method: 'pkg-config',
1881                        required: get_option('libdw'))
1882 endif
1883
1884 #################
1885 # config-host.h #
1886 #################
1887
1888 audio_drivers_selected = []
1889 if have_system
1890   audio_drivers_available = {
1891     'alsa': alsa.found(),
1892     'coreaudio': coreaudio.found(),
1893     'dsound': dsound.found(),
1894     'jack': jack.found(),
1895     'oss': oss.found(),
1896     'pa': pulse.found(),
1897     'pipewire': pipewire.found(),
1898     'sdl': sdl.found(),
1899     'sndio': sndio.found(),
1900   }
1901   foreach k, v: audio_drivers_available
1902     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1903   endforeach
1904
1905   # Default to native drivers first, OSS second, SDL third
1906   audio_drivers_priority = \
1907     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1908     (targetos == 'linux' ? [] : [ 'sdl' ])
1909   audio_drivers_default = []
1910   foreach k: audio_drivers_priority
1911     if audio_drivers_available[k]
1912       audio_drivers_default += k
1913     endif
1914   endforeach
1915
1916   foreach k: get_option('audio_drv_list')
1917     if k == 'default'
1918       audio_drivers_selected += audio_drivers_default
1919     elif not audio_drivers_available[k]
1920       error('Audio driver "@0@" not available.'.format(k))
1921     else
1922       audio_drivers_selected += k
1923     endif
1924   endforeach
1925 endif
1926 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1927                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1928
1929 if get_option('cfi')
1930   cfi_flags=[]
1931   # Check for dependency on LTO
1932   if not get_option('b_lto')
1933     error('Selected Control-Flow Integrity but LTO is disabled')
1934   endif
1935   if enable_modules
1936     error('Selected Control-Flow Integrity is not compatible with modules')
1937   endif
1938   # Check for cfi flags. CFI requires LTO so we can't use
1939   # get_supported_arguments, but need a more complex "compiles" which allows
1940   # custom arguments
1941   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1942                  args: ['-flto', '-fsanitize=cfi-icall'] )
1943     cfi_flags += '-fsanitize=cfi-icall'
1944   else
1945     error('-fsanitize=cfi-icall is not supported by the compiler')
1946   endif
1947   if cc.compiles('int main () { return 0; }',
1948                  name: '-fsanitize-cfi-icall-generalize-pointers',
1949                  args: ['-flto', '-fsanitize=cfi-icall',
1950                         '-fsanitize-cfi-icall-generalize-pointers'] )
1951     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1952   else
1953     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1954   endif
1955   if get_option('cfi_debug')
1956     if cc.compiles('int main () { return 0; }',
1957                    name: '-fno-sanitize-trap=cfi-icall',
1958                    args: ['-flto', '-fsanitize=cfi-icall',
1959                           '-fno-sanitize-trap=cfi-icall'] )
1960       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1961     else
1962       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1963     endif
1964   endif
1965   add_global_arguments(cfi_flags, native: false, language: all_languages)
1966   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
1967 endif
1968
1969 have_host_block_device = (targetos != 'darwin' or
1970     cc.has_header('IOKit/storage/IOMedia.h'))
1971
1972 dbus_display = get_option('dbus_display') \
1973   .require(gio.version().version_compare('>=2.64'),
1974            error_message: '-display dbus requires glib>=2.64') \
1975   .require(gdbus_codegen.found(),
1976            error_message: gdbus_codegen_error.format('-display dbus')) \
1977   .allowed()
1978
1979 have_virtfs = get_option('virtfs') \
1980     .require(targetos == 'linux' or targetos == 'darwin',
1981              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
1982     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
1983              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
1984     .require(targetos == 'darwin' or libattr.found(),
1985              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
1986     .disable_auto_if(not have_tools and not have_system) \
1987     .allowed()
1988
1989 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
1990     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
1991     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
1992     .disable_auto_if(not have_tools) \
1993     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
1994     .allowed()
1995
1996 if get_option('block_drv_ro_whitelist') == ''
1997   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
1998 else
1999   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
2000         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2001 endif
2002 if get_option('block_drv_rw_whitelist') == ''
2003   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2004 else
2005   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2006         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2007 endif
2008
2009 foreach k : get_option('trace_backends')
2010   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2011 endforeach
2012 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2013 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2014 if iasl.found()
2015   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2016 endif
2017 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2018 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2019 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2020 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2021 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2022
2023 qemu_firmwarepath = ''
2024 foreach k : get_option('qemu_firmwarepath')
2025   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2026 endforeach
2027 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2028
2029 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2030 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2031 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2032 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2033 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2034 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2035
2036 if enable_modules
2037   config_host_data.set('CONFIG_STAMP', run_command(
2038       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2039       meson.project_version(), get_option('pkgversion'), '--',
2040       meson.current_source_dir() / 'configure',
2041       capture: true, check: true).stdout().strip())
2042 endif
2043
2044 have_slirp_smbd = get_option('slirp_smbd') \
2045   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2046   .allowed()
2047 if have_slirp_smbd
2048   smbd_path = get_option('smbd')
2049   if smbd_path == ''
2050     smbd_path = (targetos == 'sunos' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2051   endif
2052   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2053 endif
2054
2055 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2056
2057 if get_option('module_upgrades') and not enable_modules
2058   error('Cannot enable module-upgrades as modules are not enabled')
2059 endif
2060 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2061
2062 config_host_data.set('CONFIG_ATTR', libattr.found())
2063 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2064 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2065 config_host_data.set('CONFIG_BSD', targetos in bsd_oses)
2066 config_host_data.set('CONFIG_COCOA', cocoa.found())
2067 config_host_data.set('CONFIG_DARWIN', targetos == 'darwin')
2068 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2069 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2070 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2071 config_host_data.set('CONFIG_LINUX', targetos == 'linux')
2072 config_host_data.set('CONFIG_POSIX', targetos != 'windows')
2073 config_host_data.set('CONFIG_WIN32', targetos == 'windows')
2074 config_host_data.set('CONFIG_LZO', lzo.found())
2075 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
2076 config_host_data.set('CONFIG_BLKIO', blkio.found())
2077 if blkio.found()
2078   config_host_data.set('CONFIG_BLKIO_VHOST_VDPA_FD',
2079                        blkio.version().version_compare('>=1.3.0'))
2080 endif
2081 config_host_data.set('CONFIG_CURL', curl.found())
2082 config_host_data.set('CONFIG_CURSES', curses.found())
2083 config_host_data.set('CONFIG_GBM', gbm.found())
2084 config_host_data.set('CONFIG_GIO', gio.found())
2085 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2086 if glusterfs.found()
2087   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2088   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2089   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2090   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2091   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2092   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2093 endif
2094 config_host_data.set('CONFIG_GTK', gtk.found())
2095 config_host_data.set('CONFIG_VTE', vte.found())
2096 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2097 config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
2098 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2099 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2100 config_host_data.set('CONFIG_EBPF', libbpf.found())
2101 config_host_data.set('CONFIG_AF_XDP', libxdp.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_RELOCATABLE', get_option('relocatable'))
2121 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2122 config_host_data.set('CONFIG_SDL', sdl.found())
2123 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2124 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2125 if seccomp.found()
2126   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2127 endif
2128 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2129 config_host_data.set('CONFIG_SOLARIS', targetos == 'sunos')
2130 if get_option('tcg').allowed()
2131   config_host_data.set('CONFIG_TCG', 1)
2132   config_host_data.set('CONFIG_TCG_INTERPRETER', tcg_arch == 'tci')
2133 endif
2134 config_host_data.set('CONFIG_TPM', have_tpm)
2135 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2136 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2137 config_host_data.set('CONFIG_VDE', vde.found())
2138 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2139 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2140 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2141 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2142 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2143 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2144 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2145 config_host_data.set('CONFIG_VMNET', vmnet.found())
2146 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2147 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2148 config_host_data.set('CONFIG_PNG', png.found())
2149 config_host_data.set('CONFIG_VNC', vnc.found())
2150 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2151 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2152 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2153 config_host_data.set('CONFIG_VTE', vte.found())
2154 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2155 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2156 config_host_data.set('CONFIG_GETTID', has_gettid)
2157 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2158 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2159 config_host_data.set('CONFIG_TASN1', tasn1.found())
2160 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2161 config_host_data.set('CONFIG_NETTLE', nettle.found())
2162 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2163 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2164 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2165 config_host_data.set('CONFIG_STATX', has_statx)
2166 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2167 config_host_data.set('CONFIG_ZSTD', zstd.found())
2168 config_host_data.set('CONFIG_FUSE', fuse.found())
2169 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2170 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2171 if spice_protocol.found()
2172 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2173 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2174 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2175 endif
2176 config_host_data.set('CONFIG_SPICE', spice.found())
2177 config_host_data.set('CONFIG_X11', x11.found())
2178 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2179 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2180 config_host_data.set('CONFIG_SELINUX', selinux.found())
2181 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2182 config_host_data.set('CONFIG_LIBDW', libdw.found())
2183 if xen.found()
2184   # protect from xen.version() having less than three components
2185   xen_version = xen.version().split('.') + ['0', '0']
2186   xen_ctrl_version = xen_version[0] + \
2187     ('0' + xen_version[1]).substring(-2) + \
2188     ('0' + xen_version[2]).substring(-2)
2189   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2190 endif
2191 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2192 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2193 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2194 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2195
2196 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2197 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2198
2199 have_coroutine_pool = get_option('coroutine_pool')
2200 if get_option('debug_stack_usage') and have_coroutine_pool
2201   message('Disabling coroutine pool to measure stack usage')
2202   have_coroutine_pool = false
2203 endif
2204 config_host_data.set('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2205 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2206 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2207 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2208 config_host_data.set('CONFIG_DEBUG_TCG', get_option('debug_tcg'))
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     if get_option('wrap_mode') == 'nodownload'
3065       fdt_opt = 'system'
3066     endif
3067     fdt = cc.find_library('fdt', required: fdt_opt == 'system')
3068     if fdt.found() and cc.links('''
3069        #include <libfdt.h>
3070        #include <libfdt_env.h>
3071        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3072          dependencies: fdt)
3073       fdt_opt = 'system'
3074     elif fdt_opt == 'system'
3075        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3076     else
3077       fdt_opt = 'internal'
3078       fdt = not_found
3079     endif
3080   endif
3081   if not fdt.found()
3082     assert(fdt_opt == 'internal')
3083     libfdt_proj = subproject('dtc', required: true,
3084                              default_options: ['tools=false',  'yaml=disabled',
3085                                                'python=disabled', 'default_library=static'])
3086     fdt = libfdt_proj.get_variable('libfdt_dep')
3087   endif
3088 else
3089   fdt_opt = 'disabled'
3090 endif
3091
3092 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3093 config_host_data.set('CONFIG_FDT', fdt.found())
3094 config_host_data.set('CONFIG_SLIRP', slirp.found())
3095
3096 #####################
3097 # Generated sources #
3098 #####################
3099
3100 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3101
3102 hxtool = find_program('scripts/hxtool')
3103 shaderinclude = find_program('scripts/shaderinclude.py')
3104 qapi_gen = find_program('scripts/qapi-gen.py')
3105 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3106                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3107                      meson.current_source_dir() / 'scripts/qapi/common.py',
3108                      meson.current_source_dir() / 'scripts/qapi/error.py',
3109                      meson.current_source_dir() / 'scripts/qapi/events.py',
3110                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3111                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3112                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3113                      meson.current_source_dir() / 'scripts/qapi/main.py',
3114                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3115                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3116                      meson.current_source_dir() / 'scripts/qapi/source.py',
3117                      meson.current_source_dir() / 'scripts/qapi/types.py',
3118                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3119                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3120 ]
3121
3122 tracetool = [
3123   python, files('scripts/tracetool.py'),
3124    '--backend=' + ','.join(get_option('trace_backends'))
3125 ]
3126 tracetool_depends = files(
3127   'scripts/tracetool/backend/log.py',
3128   'scripts/tracetool/backend/__init__.py',
3129   'scripts/tracetool/backend/dtrace.py',
3130   'scripts/tracetool/backend/ftrace.py',
3131   'scripts/tracetool/backend/simple.py',
3132   'scripts/tracetool/backend/syslog.py',
3133   'scripts/tracetool/backend/ust.py',
3134   'scripts/tracetool/format/ust_events_c.py',
3135   'scripts/tracetool/format/ust_events_h.py',
3136   'scripts/tracetool/format/__init__.py',
3137   'scripts/tracetool/format/d.py',
3138   'scripts/tracetool/format/simpletrace_stap.py',
3139   'scripts/tracetool/format/c.py',
3140   'scripts/tracetool/format/h.py',
3141   'scripts/tracetool/format/log_stap.py',
3142   'scripts/tracetool/format/stap.py',
3143   'scripts/tracetool/__init__.py',
3144   'scripts/tracetool/vcpu.py'
3145 )
3146
3147 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3148                     meson.current_source_dir(),
3149                     get_option('pkgversion'), meson.project_version()]
3150 qemu_version = custom_target('qemu-version.h',
3151                              output: 'qemu-version.h',
3152                              command: qemu_version_cmd,
3153                              capture: true,
3154                              build_by_default: true,
3155                              build_always_stale: true)
3156 genh += qemu_version
3157
3158 hxdep = []
3159 hx_headers = [
3160   ['qemu-options.hx', 'qemu-options.def'],
3161   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3162 ]
3163 if have_system
3164   hx_headers += [
3165     ['hmp-commands.hx', 'hmp-commands.h'],
3166     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3167   ]
3168 endif
3169 foreach d : hx_headers
3170   hxdep += custom_target(d[1],
3171                 input: files(d[0]),
3172                 output: d[1],
3173                 capture: true,
3174                 command: [hxtool, '-h', '@INPUT0@'])
3175 endforeach
3176 genh += hxdep
3177
3178 ###################
3179 # Collect sources #
3180 ###################
3181
3182 authz_ss = ss.source_set()
3183 blockdev_ss = ss.source_set()
3184 block_ss = ss.source_set()
3185 chardev_ss = ss.source_set()
3186 common_ss = ss.source_set()
3187 crypto_ss = ss.source_set()
3188 hwcore_ss = ss.source_set()
3189 io_ss = ss.source_set()
3190 qmp_ss = ss.source_set()
3191 qom_ss = ss.source_set()
3192 system_ss = ss.source_set()
3193 specific_fuzz_ss = ss.source_set()
3194 specific_ss = ss.source_set()
3195 stub_ss = ss.source_set()
3196 trace_ss = ss.source_set()
3197 user_ss = ss.source_set()
3198 util_ss = ss.source_set()
3199
3200 # accel modules
3201 qtest_module_ss = ss.source_set()
3202 tcg_module_ss = ss.source_set()
3203
3204 modules = {}
3205 target_modules = {}
3206 hw_arch = {}
3207 target_arch = {}
3208 target_system_arch = {}
3209 target_user_arch = {}
3210
3211 ###############
3212 # Trace files #
3213 ###############
3214
3215 # TODO: add each directory to the subdirs from its own meson.build, once
3216 # we have those
3217 trace_events_subdirs = [
3218   'crypto',
3219   'qapi',
3220   'qom',
3221   'monitor',
3222   'util',
3223   'gdbstub',
3224 ]
3225 if have_linux_user
3226   trace_events_subdirs += [ 'linux-user' ]
3227 endif
3228 if have_bsd_user
3229   trace_events_subdirs += [ 'bsd-user' ]
3230 endif
3231 if have_block
3232   trace_events_subdirs += [
3233     'authz',
3234     'block',
3235     'io',
3236     'nbd',
3237     'scsi',
3238   ]
3239 endif
3240 if have_system
3241   trace_events_subdirs += [
3242     'accel/kvm',
3243     'audio',
3244     'backends',
3245     'backends/tpm',
3246     'chardev',
3247     'ebpf',
3248     'hw/9pfs',
3249     'hw/acpi',
3250     'hw/adc',
3251     'hw/alpha',
3252     'hw/arm',
3253     'hw/audio',
3254     'hw/block',
3255     'hw/block/dataplane',
3256     'hw/char',
3257     'hw/display',
3258     'hw/dma',
3259     'hw/hyperv',
3260     'hw/i2c',
3261     'hw/i386',
3262     'hw/i386/xen',
3263     'hw/i386/kvm',
3264     'hw/ide',
3265     'hw/input',
3266     'hw/intc',
3267     'hw/isa',
3268     'hw/mem',
3269     'hw/mips',
3270     'hw/misc',
3271     'hw/misc/macio',
3272     'hw/net',
3273     'hw/net/can',
3274     'hw/nubus',
3275     'hw/nvme',
3276     'hw/nvram',
3277     'hw/pci',
3278     'hw/pci-host',
3279     'hw/ppc',
3280     'hw/rdma',
3281     'hw/rdma/vmw',
3282     'hw/rtc',
3283     'hw/s390x',
3284     'hw/scsi',
3285     'hw/sd',
3286     'hw/sh4',
3287     'hw/sparc',
3288     'hw/sparc64',
3289     'hw/ssi',
3290     'hw/timer',
3291     'hw/tpm',
3292     'hw/ufs',
3293     'hw/usb',
3294     'hw/vfio',
3295     'hw/virtio',
3296     'hw/watchdog',
3297     'hw/xen',
3298     'hw/gpio',
3299     'migration',
3300     'net',
3301     'system',
3302     'ui',
3303     'hw/remote',
3304   ]
3305 endif
3306 if have_system or have_user
3307   trace_events_subdirs += [
3308     'accel/tcg',
3309     'hw/core',
3310     'target/arm',
3311     'target/arm/hvf',
3312     'target/hppa',
3313     'target/i386',
3314     'target/i386/kvm',
3315     'target/mips/tcg',
3316     'target/nios2',
3317     'target/ppc',
3318     'target/riscv',
3319     'target/s390x',
3320     'target/s390x/kvm',
3321     'target/sparc',
3322   ]
3323 endif
3324
3325 vhost_user = not_found
3326 if targetos == 'linux' and have_vhost_user
3327   libvhost_user = subproject('libvhost-user')
3328   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3329 endif
3330
3331 libvduse = not_found
3332 if have_libvduse
3333   libvduse_proj = subproject('libvduse')
3334   libvduse = libvduse_proj.get_variable('libvduse_dep')
3335 endif
3336
3337 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3338 # that is filled in by qapi/.
3339 subdir('qapi')
3340 subdir('qobject')
3341 subdir('stubs')
3342 subdir('trace')
3343 subdir('util')
3344 subdir('qom')
3345 subdir('authz')
3346 subdir('crypto')
3347 subdir('ui')
3348 subdir('hw')
3349 subdir('gdbstub')
3350
3351 if enable_modules
3352   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3353   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3354 endif
3355
3356 qom_ss = qom_ss.apply(config_targetos, strict: false)
3357 libqom = static_library('qom', qom_ss.sources() + genh,
3358                         dependencies: [qom_ss.dependencies()],
3359                         name_suffix: 'fa',
3360                         build_by_default: false)
3361 qom = declare_dependency(link_whole: libqom)
3362
3363 event_loop_base = files('event-loop-base.c')
3364 event_loop_base = static_library('event-loop-base',
3365                                  sources: event_loop_base + genh,
3366                                  name_suffix: 'fa',
3367                                  build_by_default: false)
3368 event_loop_base = declare_dependency(link_whole: event_loop_base,
3369                                      dependencies: [qom])
3370
3371 stub_ss = stub_ss.apply(config_all, strict: false)
3372
3373 util_ss.add_all(trace_ss)
3374 util_ss = util_ss.apply(config_all, strict: false)
3375 libqemuutil = static_library('qemuutil',
3376                              build_by_default: false,
3377                              sources: util_ss.sources() + stub_ss.sources() + genh,
3378                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3379 qemuutil = declare_dependency(link_with: libqemuutil,
3380                               sources: genh + version_res,
3381                               dependencies: [event_loop_base])
3382
3383 if have_system or have_user
3384   decodetree = generator(find_program('scripts/decodetree.py'),
3385                          output: 'decode-@BASENAME@.c.inc',
3386                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3387   subdir('libdecnumber')
3388   subdir('target')
3389 endif
3390
3391 subdir('audio')
3392 subdir('io')
3393 subdir('chardev')
3394 subdir('fsdev')
3395 subdir('dump')
3396
3397 if have_block
3398   block_ss.add(files(
3399     'block.c',
3400     'blockjob.c',
3401     'job.c',
3402     'qemu-io-cmds.c',
3403   ))
3404   if config_host_data.get('CONFIG_REPLICATION')
3405     block_ss.add(files('replication.c'))
3406   endif
3407
3408   subdir('nbd')
3409   subdir('scsi')
3410   subdir('block')
3411
3412   blockdev_ss.add(files(
3413     'blockdev.c',
3414     'blockdev-nbd.c',
3415     'iothread.c',
3416     'job-qmp.c',
3417   ), gnutls)
3418
3419   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3420   # os-win32.c does not
3421   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3422   system_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3423 endif
3424
3425 common_ss.add(files('cpu-common.c'))
3426 specific_ss.add(files('cpu-target.c'))
3427
3428 subdir('system')
3429
3430 # Work around a gcc bug/misfeature wherein constant propagation looks
3431 # through an alias:
3432 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3433 # to guess that a const variable is always zero.  Without lto, this is
3434 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3435 # without lto, not even the alias is required -- we simply use different
3436 # declarations in different compilation units.
3437 pagevary = files('page-vary-common.c')
3438 if get_option('b_lto')
3439   pagevary_flags = ['-fno-lto']
3440   if get_option('cfi')
3441     pagevary_flags += '-fno-sanitize=cfi-icall'
3442   endif
3443   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3444                             c_args: pagevary_flags)
3445   pagevary = declare_dependency(link_with: pagevary)
3446 endif
3447 common_ss.add(pagevary)
3448 specific_ss.add(files('page-vary-target.c'))
3449
3450 subdir('backends')
3451 subdir('disas')
3452 subdir('migration')
3453 subdir('monitor')
3454 subdir('net')
3455 subdir('replay')
3456 subdir('semihosting')
3457 subdir('stats')
3458 subdir('tcg')
3459 subdir('fpu')
3460 subdir('accel')
3461 subdir('plugins')
3462 subdir('ebpf')
3463
3464 common_user_inc = []
3465
3466 subdir('common-user')
3467 subdir('bsd-user')
3468 subdir('linux-user')
3469
3470 # needed for fuzzing binaries
3471 subdir('tests/qtest/libqos')
3472 subdir('tests/qtest/fuzz')
3473
3474 # accel modules
3475 tcg_real_module_ss = ss.source_set()
3476 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3477 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3478 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3479                                 'tcg': tcg_real_module_ss }}
3480
3481 ########################
3482 # Library dependencies #
3483 ########################
3484
3485 modinfo_collect = find_program('scripts/modinfo-collect.py')
3486 modinfo_generate = find_program('scripts/modinfo-generate.py')
3487 modinfo_files = []
3488
3489 block_mods = []
3490 system_mods = []
3491 foreach d, list : modules
3492   if not (d == 'block' ? have_block : have_system)
3493     continue
3494   endif
3495
3496   foreach m, module_ss : list
3497     if enable_modules
3498       module_ss = module_ss.apply(config_all, strict: false)
3499       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3500                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3501       if d == 'block'
3502         block_mods += sl
3503       else
3504         system_mods += sl
3505       endif
3506       if module_ss.sources() != []
3507         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3508         # input. Sources can be used multiple times but objects are
3509         # unique when it comes to lookup in compile_commands.json.
3510         # Depnds on a mesion version with
3511         # https://github.com/mesonbuild/meson/pull/8900
3512         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3513                                        output: d + '-' + m + '.modinfo',
3514                                        input: module_ss.sources() + genh,
3515                                        capture: true,
3516                                        command: [modinfo_collect, module_ss.sources()])
3517       endif
3518     else
3519       if d == 'block'
3520         block_ss.add_all(module_ss)
3521       else
3522         system_ss.add_all(module_ss)
3523       endif
3524     endif
3525   endforeach
3526 endforeach
3527
3528 foreach d, list : target_modules
3529   foreach m, module_ss : list
3530     if enable_modules
3531       foreach target : target_dirs
3532         if target.endswith('-softmmu')
3533           config_target = config_target_mak[target]
3534           config_target += config_targetos
3535           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3536           c_args = ['-DNEED_CPU_H',
3537                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3538                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3539           target_module_ss = module_ss.apply(config_target, strict: false)
3540           if target_module_ss.sources() != []
3541             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3542             sl = static_library(module_name,
3543                                 [genh, target_module_ss.sources()],
3544                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3545                                 include_directories: target_inc,
3546                                 c_args: c_args,
3547                                 pic: true)
3548             system_mods += sl
3549             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3550             modinfo_files += custom_target(module_name + '.modinfo',
3551                                            output: module_name + '.modinfo',
3552                                            input: target_module_ss.sources() + genh,
3553                                            capture: true,
3554                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3555           endif
3556         endif
3557       endforeach
3558     else
3559       specific_ss.add_all(module_ss)
3560     endif
3561   endforeach
3562 endforeach
3563
3564 if enable_modules
3565   foreach target : target_dirs
3566     if target.endswith('-softmmu')
3567       config_target = config_target_mak[target]
3568       config_devices_mak = target + '-config-devices.mak'
3569       modinfo_src = custom_target('modinfo-' + target + '.c',
3570                                   output: 'modinfo-' + target + '.c',
3571                                   input: modinfo_files,
3572                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3573                                   capture: true)
3574
3575       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3576       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3577
3578       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3579       hw_arch[arch].add(modinfo_dep)
3580     endif
3581   endforeach
3582 endif
3583
3584 nm = find_program('nm')
3585 undefsym = find_program('scripts/undefsym.py')
3586 block_syms = custom_target('block.syms', output: 'block.syms',
3587                              input: [libqemuutil, block_mods],
3588                              capture: true,
3589                              command: [undefsym, nm, '@INPUT@'])
3590 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3591                              input: [libqemuutil, system_mods],
3592                              capture: true,
3593                              command: [undefsym, nm, '@INPUT@'])
3594
3595 authz_ss = authz_ss.apply(config_targetos, strict: false)
3596 libauthz = static_library('authz', authz_ss.sources() + genh,
3597                           dependencies: [authz_ss.dependencies()],
3598                           name_suffix: 'fa',
3599                           build_by_default: false)
3600
3601 authz = declare_dependency(link_whole: libauthz,
3602                            dependencies: qom)
3603
3604 crypto_ss = crypto_ss.apply(config_targetos, strict: false)
3605 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3606                            dependencies: [crypto_ss.dependencies()],
3607                            name_suffix: 'fa',
3608                            build_by_default: false)
3609
3610 crypto = declare_dependency(link_whole: libcrypto,
3611                             dependencies: [authz, qom])
3612
3613 io_ss = io_ss.apply(config_targetos, strict: false)
3614 libio = static_library('io', io_ss.sources() + genh,
3615                        dependencies: [io_ss.dependencies()],
3616                        link_with: libqemuutil,
3617                        name_suffix: 'fa',
3618                        build_by_default: false)
3619
3620 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3621
3622 libmigration = static_library('migration', sources: migration_files + genh,
3623                               name_suffix: 'fa',
3624                               build_by_default: false)
3625 migration = declare_dependency(link_with: libmigration,
3626                                dependencies: [zlib, qom, io])
3627 system_ss.add(migration)
3628
3629 block_ss = block_ss.apply(config_targetos, strict: false)
3630 libblock = static_library('block', block_ss.sources() + genh,
3631                           dependencies: block_ss.dependencies(),
3632                           link_depends: block_syms,
3633                           name_suffix: 'fa',
3634                           build_by_default: false)
3635
3636 block = declare_dependency(link_whole: [libblock],
3637                            link_args: '@block.syms',
3638                            dependencies: [crypto, io])
3639
3640 blockdev_ss = blockdev_ss.apply(config_targetos, strict: false)
3641 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3642                              dependencies: blockdev_ss.dependencies(),
3643                              name_suffix: 'fa',
3644                              build_by_default: false)
3645
3646 blockdev = declare_dependency(link_whole: [libblockdev],
3647                               dependencies: [block, event_loop_base])
3648
3649 qmp_ss = qmp_ss.apply(config_targetos, strict: false)
3650 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3651                         dependencies: qmp_ss.dependencies(),
3652                         name_suffix: 'fa',
3653                         build_by_default: false)
3654
3655 qmp = declare_dependency(link_whole: [libqmp])
3656
3657 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3658                             name_suffix: 'fa',
3659                             dependencies: chardev_ss.dependencies(),
3660                             build_by_default: false)
3661
3662 chardev = declare_dependency(link_whole: libchardev)
3663
3664 hwcore_ss = hwcore_ss.apply(config_targetos, strict: false)
3665 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3666                            name_suffix: 'fa',
3667                            build_by_default: false)
3668 hwcore = declare_dependency(link_whole: libhwcore)
3669 common_ss.add(hwcore)
3670
3671 ###########
3672 # Targets #
3673 ###########
3674
3675 emulator_modules = []
3676 foreach m : block_mods + system_mods
3677   emulator_modules += shared_module(m.name(),
3678                 build_by_default: true,
3679                 name_prefix: '',
3680                 link_whole: m,
3681                 install: true,
3682                 install_dir: qemu_moddir)
3683 endforeach
3684 if emulator_modules.length() > 0
3685   alias_target('modules', emulator_modules)
3686 endif
3687
3688 system_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3689 common_ss.add(qom, qemuutil)
3690
3691 common_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: [system_ss])
3692 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3693
3694 common_all = common_ss.apply(config_all, strict: false)
3695 common_all = static_library('common',
3696                             build_by_default: false,
3697                             sources: common_all.sources() + genh,
3698                             include_directories: common_user_inc,
3699                             implicit_include_directories: false,
3700                             dependencies: common_all.dependencies(),
3701                             name_suffix: 'fa')
3702
3703 feature_to_c = find_program('scripts/feature_to_c.py')
3704
3705 if targetos == 'darwin'
3706   entitlement = find_program('scripts/entitlement.sh')
3707 endif
3708
3709 emulators = {}
3710 foreach target : target_dirs
3711   config_target = config_target_mak[target]
3712   target_name = config_target['TARGET_NAME']
3713   target_base_arch = config_target['TARGET_BASE_ARCH']
3714   arch_srcs = [config_target_h[target]]
3715   arch_deps = []
3716   c_args = ['-DNEED_CPU_H',
3717             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3718             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3719   link_args = emulator_link_args
3720
3721   config_target += config_targetos
3722   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3723   if targetos == 'linux'
3724     target_inc += include_directories('linux-headers', is_system: true)
3725   endif
3726   if target.endswith('-softmmu')
3727     target_type='system'
3728     t = target_system_arch[target_base_arch].apply(config_target, strict: false)
3729     arch_srcs += t.sources()
3730     arch_deps += t.dependencies()
3731
3732     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3733     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3734     arch_srcs += hw.sources()
3735     arch_deps += hw.dependencies()
3736
3737     arch_srcs += config_devices_h[target]
3738     link_args += ['@block.syms', '@qemu.syms']
3739   else
3740     abi = config_target['TARGET_ABI_DIR']
3741     target_type='user'
3742     target_inc += common_user_inc
3743     if target_base_arch in target_user_arch
3744       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3745       arch_srcs += t.sources()
3746       arch_deps += t.dependencies()
3747     endif
3748     if 'CONFIG_LINUX_USER' in config_target
3749       base_dir = 'linux-user'
3750     endif
3751     if 'CONFIG_BSD_USER' in config_target
3752       base_dir = 'bsd-user'
3753       target_inc += include_directories('bsd-user/' / targetos)
3754       target_inc += include_directories('bsd-user/host/' / host_arch)
3755       dir = base_dir / abi
3756       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3757     endif
3758     target_inc += include_directories(
3759       base_dir,
3760       base_dir / abi,
3761     )
3762     if 'CONFIG_LINUX_USER' in config_target
3763       dir = base_dir / abi
3764       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3765       if config_target.has_key('TARGET_SYSTBL_ABI')
3766         arch_srcs += \
3767           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3768                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3769       endif
3770     endif
3771   endif
3772
3773   if 'TARGET_XML_FILES' in config_target
3774     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3775                                 output: target + '-gdbstub-xml.c',
3776                                 input: files(config_target['TARGET_XML_FILES'].split()),
3777                                 command: [feature_to_c, '@INPUT@'],
3778                                 capture: true)
3779     arch_srcs += gdbstub_xml
3780   endif
3781
3782   t = target_arch[target_base_arch].apply(config_target, strict: false)
3783   arch_srcs += t.sources()
3784   arch_deps += t.dependencies()
3785
3786   target_common = common_ss.apply(config_target, strict: false)
3787   objects = common_all.extract_objects(target_common.sources())
3788   deps = target_common.dependencies()
3789
3790   target_specific = specific_ss.apply(config_target, strict: false)
3791   arch_srcs += target_specific.sources()
3792   arch_deps += target_specific.dependencies()
3793
3794   lib = static_library('qemu-' + target,
3795                  sources: arch_srcs + genh,
3796                  dependencies: arch_deps,
3797                  objects: objects,
3798                  include_directories: target_inc,
3799                  c_args: c_args,
3800                  build_by_default: false,
3801                  name_suffix: 'fa')
3802
3803   if target.endswith('-softmmu')
3804     execs = [{
3805       'name': 'qemu-system-' + target_name,
3806       'win_subsystem': 'console',
3807       'sources': files('system/main.c'),
3808       'dependencies': []
3809     }]
3810     if targetos == 'windows' and (sdl.found() or gtk.found())
3811       execs += [{
3812         'name': 'qemu-system-' + target_name + 'w',
3813         'win_subsystem': 'windows',
3814         'sources': files('system/main.c'),
3815         'dependencies': []
3816       }]
3817     endif
3818     if get_option('fuzzing')
3819       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3820       execs += [{
3821         'name': 'qemu-fuzz-' + target_name,
3822         'win_subsystem': 'console',
3823         'sources': specific_fuzz.sources(),
3824         'dependencies': specific_fuzz.dependencies(),
3825       }]
3826     endif
3827   else
3828     execs = [{
3829       'name': 'qemu-' + target_name,
3830       'win_subsystem': 'console',
3831       'sources': [],
3832       'dependencies': []
3833     }]
3834   endif
3835   foreach exe: execs
3836     exe_name = exe['name']
3837     if targetos == 'darwin'
3838       exe_name += '-unsigned'
3839     endif
3840
3841     emulator = executable(exe_name, exe['sources'],
3842                install: true,
3843                c_args: c_args,
3844                dependencies: arch_deps + deps + exe['dependencies'],
3845                objects: lib.extract_all_objects(recursive: true),
3846                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3847                link_args: link_args,
3848                win_subsystem: exe['win_subsystem'])
3849
3850     if targetos == 'darwin'
3851       icon = 'pc-bios/qemu.rsrc'
3852       build_input = [emulator, files(icon)]
3853       install_input = [
3854         get_option('bindir') / exe_name,
3855         meson.current_source_dir() / icon
3856       ]
3857       if 'CONFIG_HVF' in config_target
3858         entitlements = 'accel/hvf/entitlements.plist'
3859         build_input += files(entitlements)
3860         install_input += meson.current_source_dir() / entitlements
3861       endif
3862
3863       emulators += {exe['name'] : custom_target(exe['name'],
3864                    input: build_input,
3865                    output: exe['name'],
3866                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3867       }
3868
3869       meson.add_install_script(entitlement, '--install',
3870                                get_option('bindir') / exe['name'],
3871                                install_input)
3872     else
3873       emulators += {exe['name']: emulator}
3874     endif
3875
3876     if stap.found()
3877       foreach stp: [
3878         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3879         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3880         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3881         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3882       ]
3883         custom_target(exe['name'] + stp['ext'],
3884                       input: trace_events_all,
3885                       output: exe['name'] + stp['ext'],
3886                       install: stp['install'],
3887                       install_dir: get_option('datadir') / 'systemtap/tapset',
3888                       command: [
3889                         tracetool, '--group=all', '--format=' + stp['fmt'],
3890                         '--binary=' + stp['bin'],
3891                         '--target-name=' + target_name,
3892                         '--target-type=' + target_type,
3893                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3894                         '@INPUT@', '@OUTPUT@'
3895                       ],
3896                       depend_files: tracetool_depends)
3897       endforeach
3898     endif
3899   endforeach
3900 endforeach
3901
3902 # Other build targets
3903
3904 if get_option('plugins')
3905   install_headers('include/qemu/qemu-plugin.h')
3906 endif
3907
3908 subdir('qga')
3909
3910 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3911 # when we don't build tools or system
3912 if xkbcommon.found()
3913   # used for the update-keymaps target, so include rules even if !have_tools
3914   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3915                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3916 endif
3917
3918 if have_tools
3919   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3920              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3921   qemu_io = executable('qemu-io', files('qemu-io.c'),
3922              dependencies: [block, qemuutil], install: true)
3923   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3924                dependencies: [blockdev, qemuutil, gnutls, selinux],
3925                install: true)
3926
3927   subdir('storage-daemon')
3928   subdir('contrib/rdmacm-mux')
3929   subdir('contrib/elf2dmp')
3930
3931   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3932              dependencies: qemuutil,
3933              install: true)
3934
3935   if have_vhost_user
3936     subdir('contrib/vhost-user-blk')
3937     subdir('contrib/vhost-user-gpu')
3938     subdir('contrib/vhost-user-input')
3939     subdir('contrib/vhost-user-scsi')
3940   endif
3941
3942   if targetos == 'linux'
3943     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3944                dependencies: [qemuutil, libcap_ng],
3945                install: true,
3946                install_dir: get_option('libexecdir'))
3947
3948     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3949                dependencies: [authz, crypto, io, qom, qemuutil,
3950                               libcap_ng, mpathpersist],
3951                install: true)
3952   endif
3953
3954   if have_ivshmem
3955     subdir('contrib/ivshmem-client')
3956     subdir('contrib/ivshmem-server')
3957   endif
3958 endif
3959
3960 subdir('scripts')
3961 subdir('tools')
3962 subdir('pc-bios')
3963 subdir('docs')
3964 subdir('tests')
3965 if gtk.found()
3966   subdir('po')
3967 endif
3968
3969 if host_machine.system() == 'windows'
3970   nsis_cmd = [
3971     find_program('scripts/nsis.py'),
3972     '@OUTPUT@',
3973     get_option('prefix'),
3974     meson.current_source_dir(),
3975     glib_pc.get_variable('bindir'),
3976     host_machine.cpu(),
3977     '--',
3978     '-DDISPLAYVERSION=' + meson.project_version(),
3979   ]
3980   if build_docs
3981     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3982   endif
3983   if gtk.found()
3984     nsis_cmd += '-DCONFIG_GTK=y'
3985   endif
3986
3987   nsis = custom_target('nsis',
3988                        output: 'qemu-setup-' + meson.project_version() + '.exe',
3989                        input: files('qemu.nsi'),
3990                        build_always_stale: true,
3991                        command: nsis_cmd + ['@INPUT@'])
3992   alias_target('installer', nsis)
3993 endif
3994
3995 #########################
3996 # Configuration summary #
3997 #########################
3998
3999 # Build environment
4000 summary_info = {}
4001 summary_info += {'Build directory':   meson.current_build_dir()}
4002 summary_info += {'Source path':       meson.current_source_dir()}
4003 summary_info += {'Download dependencies': get_option('wrap_mode') != 'nodownload'}
4004 summary(summary_info, bool_yn: true, section: 'Build environment')
4005
4006 # Directories
4007 summary_info += {'Install prefix':    get_option('prefix')}
4008 summary_info += {'BIOS directory':    qemu_datadir}
4009 pathsep = targetos == 'windows' ? ';' : ':'
4010 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
4011 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
4012 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
4013 summary_info += {'module directory':  qemu_moddir}
4014 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
4015 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
4016 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
4017 if targetos != 'windows'
4018   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
4019   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
4020 else
4021   summary_info += {'local state directory': 'queried at runtime'}
4022 endif
4023 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
4024 summary(summary_info, bool_yn: true, section: 'Directories')
4025
4026 # Host binaries
4027 summary_info = {}
4028 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4029 summary_info += {'sphinx-build':      sphinx_build}
4030
4031 # FIXME: the [binaries] section of machine files, which can be probed
4032 # with find_program(), would be great for passing gdb and genisoimage
4033 # paths from configure to Meson.  However, there seems to be no way to
4034 # hide a program (for example if gdb is too old).
4035 if config_host.has_key('GDB')
4036   summary_info += {'gdb':             config_host['GDB']}
4037 endif
4038 summary_info += {'iasl':              iasl}
4039 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4040 if targetos == 'windows' and have_ga
4041   summary_info += {'wixl':            wixl}
4042 endif
4043 if slirp.found() and have_system
4044   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4045 endif
4046 summary(summary_info, bool_yn: true, section: 'Host binaries')
4047
4048 # Configurable features
4049 summary_info = {}
4050 summary_info += {'Documentation':     build_docs}
4051 summary_info += {'system-mode emulation': have_system}
4052 summary_info += {'user-mode emulation': have_user}
4053 summary_info += {'block layer':       have_block}
4054 summary_info += {'Install blobs':     get_option('install_blobs')}
4055 summary_info += {'module support':    enable_modules}
4056 if enable_modules
4057   summary_info += {'alternative module path': get_option('module_upgrades')}
4058 endif
4059 summary_info += {'fuzzing support':   get_option('fuzzing')}
4060 if have_system
4061   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4062 endif
4063 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4064 if 'simple' in get_option('trace_backends')
4065   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4066 endif
4067 summary_info += {'D-Bus display':     dbus_display}
4068 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4069 summary_info += {'Relocatable install': get_option('relocatable')}
4070 summary_info += {'vhost-kernel support': have_vhost_kernel}
4071 summary_info += {'vhost-net support': have_vhost_net}
4072 summary_info += {'vhost-user support': have_vhost_user}
4073 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4074 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4075 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4076 summary_info += {'build guest agent': have_ga}
4077 summary(summary_info, bool_yn: true, section: 'Configurable features')
4078
4079 # Compilation information
4080 summary_info = {}
4081 summary_info += {'host CPU':          cpu}
4082 summary_info += {'host endianness':   build_machine.endian()}
4083 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4084 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4085 if 'cpp' in all_languages
4086   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4087 else
4088   summary_info += {'C++ compiler':      false}
4089 endif
4090 if targetos == 'darwin'
4091   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4092 endif
4093 option_cflags = (get_option('debug') ? ['-g'] : [])
4094 if get_option('optimization') != 'plain'
4095   option_cflags += ['-O' + get_option('optimization')]
4096 endif
4097 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4098 if 'cpp' in all_languages
4099   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4100 endif
4101 if targetos == 'darwin'
4102   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4103 endif
4104 link_args = get_option('c_link_args')
4105 if link_args.length() > 0
4106   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4107 endif
4108 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4109 if 'cpp' in all_languages
4110   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4111 endif
4112 if 'objc' in all_languages
4113   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4114 endif
4115 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4116 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4117 summary_info += {'PIE':               get_option('b_pie')}
4118 summary_info += {'static build':      get_option('prefer_static')}
4119 summary_info += {'malloc trim support': has_malloc_trim}
4120 summary_info += {'membarrier':        have_membarrier}
4121 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4122 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4123 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4124 summary_info += {'memory allocator':  get_option('malloc')}
4125 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4126 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4127 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4128 summary_info += {'gcov':              get_option('b_coverage')}
4129 summary_info += {'thread sanitizer':  get_option('tsan')}
4130 summary_info += {'CFI support':       get_option('cfi')}
4131 if get_option('cfi')
4132   summary_info += {'CFI debug support': get_option('cfi_debug')}
4133 endif
4134 summary_info += {'strip binaries':    get_option('strip')}
4135 summary_info += {'sparse':            sparse}
4136 summary_info += {'mingw32 support':   targetos == 'windows'}
4137 summary(summary_info, bool_yn: true, section: 'Compilation')
4138
4139 # snarf the cross-compilation information for tests
4140 summary_info = {}
4141 have_cross = false
4142 foreach target: target_dirs
4143   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4144   if fs.exists(tcg_mak)
4145     config_cross_tcg = keyval.load(tcg_mak)
4146     if 'CC' in config_cross_tcg
4147       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4148       have_cross = true
4149     endif
4150   endif
4151 endforeach
4152 if have_cross
4153   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4154 endif
4155
4156 # Targets and accelerators
4157 summary_info = {}
4158 if have_system
4159   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4160   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4161   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4162   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4163   summary_info += {'Xen support':       xen.found()}
4164   if xen.found()
4165     summary_info += {'xen ctrl version':  xen.version()}
4166   endif
4167   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4168 endif
4169 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4170 if config_all.has_key('CONFIG_TCG')
4171   if get_option('tcg_interpreter')
4172     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4173   else
4174     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4175   endif
4176   summary_info += {'TCG plugins':       get_option('plugins')}
4177   summary_info += {'TCG debug enabled': get_option('debug_tcg')}
4178 endif
4179 summary_info += {'target list':       ' '.join(target_dirs)}
4180 if have_system
4181   summary_info += {'default devices':   get_option('default_devices')}
4182   summary_info += {'out of process emulation': multiprocess_allowed}
4183   summary_info += {'vfio-user server': vfio_user_server_allowed}
4184 endif
4185 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4186
4187 # Block layer
4188 summary_info = {}
4189 summary_info += {'coroutine backend': coroutine_backend}
4190 summary_info += {'coroutine pool':    have_coroutine_pool}
4191 if have_block
4192   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4193   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4194   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4195   summary_info += {'VirtFS (9P) support':    have_virtfs}
4196   summary_info += {'VirtFS (9P) Proxy Helper support (deprecated)': have_virtfs_proxy_helper}
4197   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4198   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4199   summary_info += {'bochs support':     get_option('bochs').allowed()}
4200   summary_info += {'cloop support':     get_option('cloop').allowed()}
4201   summary_info += {'dmg support':       get_option('dmg').allowed()}
4202   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4203   summary_info += {'vdi support':       get_option('vdi').allowed()}
4204   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4205   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4206   summary_info += {'vpc support':       get_option('vpc').allowed()}
4207   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4208   summary_info += {'qed support':       get_option('qed').allowed()}
4209   summary_info += {'parallels support': get_option('parallels').allowed()}
4210   summary_info += {'FUSE exports':      fuse}
4211   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4212 endif
4213 summary(summary_info, bool_yn: true, section: 'Block layer support')
4214
4215 # Crypto
4216 summary_info = {}
4217 summary_info += {'TLS priority':      get_option('tls_priority')}
4218 summary_info += {'GNUTLS support':    gnutls}
4219 if gnutls.found()
4220   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4221 endif
4222 summary_info += {'libgcrypt':         gcrypt}
4223 summary_info += {'nettle':            nettle}
4224 if nettle.found()
4225    summary_info += {'  XTS':             xts != 'private'}
4226 endif
4227 summary_info += {'AF_ALG support':    have_afalg}
4228 summary_info += {'rng-none':          get_option('rng_none')}
4229 summary_info += {'Linux keyring':     have_keyring}
4230 summary_info += {'Linux keyutils':    keyutils}
4231 summary(summary_info, bool_yn: true, section: 'Crypto')
4232
4233 # UI
4234 summary_info = {}
4235 if targetos == 'darwin'
4236   summary_info += {'Cocoa support':           cocoa}
4237 endif
4238 summary_info += {'SDL support':       sdl}
4239 summary_info += {'SDL image support': sdl_image}
4240 summary_info += {'GTK support':       gtk}
4241 summary_info += {'pixman':            pixman}
4242 summary_info += {'VTE support':       vte}
4243 summary_info += {'PNG support':       png}
4244 summary_info += {'VNC support':       vnc}
4245 if vnc.found()
4246   summary_info += {'VNC SASL support':  sasl}
4247   summary_info += {'VNC JPEG support':  jpeg}
4248 endif
4249 summary_info += {'spice protocol support': spice_protocol}
4250 if spice_protocol.found()
4251   summary_info += {'  spice server support': spice}
4252 endif
4253 summary_info += {'curses support':    curses}
4254 summary_info += {'brlapi support':    brlapi}
4255 summary(summary_info, bool_yn: true, section: 'User interface')
4256
4257 # Audio backends
4258 summary_info = {}
4259 if targetos not in ['darwin', 'haiku', 'windows']
4260   summary_info += {'OSS support':     oss}
4261   summary_info += {'sndio support':   sndio}
4262 elif targetos == 'darwin'
4263   summary_info += {'CoreAudio support': coreaudio}
4264 elif targetos == 'windows'
4265   summary_info += {'DirectSound support': dsound}
4266 endif
4267 if targetos == 'linux'
4268   summary_info += {'ALSA support':    alsa}
4269   summary_info += {'PulseAudio support': pulse}
4270 endif
4271 summary_info += {'PipeWire support':  pipewire}
4272 summary_info += {'JACK support':      jack}
4273 summary(summary_info, bool_yn: true, section: 'Audio backends')
4274
4275 # Network backends
4276 summary_info = {}
4277 if targetos == 'darwin'
4278   summary_info += {'vmnet.framework support': vmnet}
4279 endif
4280 summary_info += {'AF_XDP support':    libxdp}
4281 summary_info += {'slirp support':     slirp}
4282 summary_info += {'vde support':       vde}
4283 summary_info += {'netmap support':    have_netmap}
4284 summary_info += {'l2tpv3 support':    have_l2tpv3}
4285 summary(summary_info, bool_yn: true, section: 'Network backends')
4286
4287 # Libraries
4288 summary_info = {}
4289 summary_info += {'libtasn1':          tasn1}
4290 summary_info += {'PAM':               pam}
4291 summary_info += {'iconv support':     iconv}
4292 summary_info += {'virgl support':     virgl}
4293 summary_info += {'rutabaga support':  rutabaga}
4294 summary_info += {'blkio support':     blkio}
4295 summary_info += {'curl support':      curl}
4296 summary_info += {'Multipath support': mpathpersist}
4297 summary_info += {'Linux AIO support': libaio}
4298 summary_info += {'Linux io_uring support': linux_io_uring}
4299 summary_info += {'ATTR/XATTR support': libattr}
4300 summary_info += {'RDMA support':      rdma}
4301 summary_info += {'PVRDMA support':    have_pvrdma}
4302 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4303 summary_info += {'libcap-ng support': libcap_ng}
4304 summary_info += {'bpf support':       libbpf}
4305 summary_info += {'rbd support':       rbd}
4306 summary_info += {'smartcard support': cacard}
4307 summary_info += {'U2F support':       u2f}
4308 summary_info += {'libusb':            libusb}
4309 summary_info += {'usb net redir':     usbredir}
4310 summary_info += {'OpenGL support (epoxy)': opengl}
4311 summary_info += {'GBM':               gbm}
4312 summary_info += {'libiscsi support':  libiscsi}
4313 summary_info += {'libnfs support':    libnfs}
4314 if targetos == 'windows'
4315   if have_ga
4316     summary_info += {'QGA VSS support':   have_qga_vss}
4317   endif
4318 endif
4319 summary_info += {'seccomp support':   seccomp}
4320 summary_info += {'GlusterFS support': glusterfs}
4321 summary_info += {'TPM support':       have_tpm}
4322 summary_info += {'libssh support':    libssh}
4323 summary_info += {'lzo support':       lzo}
4324 summary_info += {'snappy support':    snappy}
4325 summary_info += {'bzip2 support':     libbzip2}
4326 summary_info += {'lzfse support':     liblzfse}
4327 summary_info += {'zstd support':      zstd}
4328 summary_info += {'NUMA host support': numa}
4329 summary_info += {'capstone':          capstone}
4330 summary_info += {'libpmem support':   libpmem}
4331 summary_info += {'libdaxctl support': libdaxctl}
4332 summary_info += {'libudev':           libudev}
4333 # Dummy dependency, keep .found()
4334 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4335 summary_info += {'selinux':           selinux}
4336 summary_info += {'libdw':             libdw}
4337 summary(summary_info, bool_yn: true, section: 'Dependencies')
4338
4339 if host_arch == 'unknown'
4340   message()
4341   warning('UNSUPPORTED HOST CPU')
4342   message()
4343   message('Support for CPU host architecture ' + cpu + ' is not currently')
4344   message('maintained. The QEMU project does not guarantee that QEMU will')
4345   message('compile or work on this host CPU. You can help by volunteering')
4346   message('to maintain it and providing a build host for our continuous')
4347   message('integration setup.')
4348   if get_option('tcg').allowed() and target_dirs.length() > 0
4349     message()
4350     message('configure has succeeded and you can continue to build, but')
4351     message('QEMU will use a slow interpreter to emulate the target CPU.')
4352   endif
4353 endif
4354
4355 if not supported_oses.contains(targetos)
4356   message()
4357   warning('UNSUPPORTED HOST OS')
4358   message()
4359   message('Support for host OS ' + targetos + 'is not currently maintained.')
4360   message('configure has succeeded and you can continue to build, but')
4361   message('the QEMU project does not guarantee that QEMU will compile or')
4362   message('work on this operating system. You can help by volunteering')
4363   message('to maintain it and providing a build host for our continuous')
4364   message('integration setup. This will ensure that future versions of QEMU')
4365   message('will keep working on ' + targetos + '.')
4366 endif
4367
4368 if host_arch == 'unknown' or not supported_oses.contains(targetos)
4369   message()
4370   message('If you want to help supporting QEMU on this platform, please')
4371   message('contact the developers at qemu-devel@nongnu.org.')
4372 endif
4373
4374 actually_reloc = get_option('relocatable')
4375 # check if get_relocated_path() is actually able to relocate paths
4376 if get_option('relocatable') and \
4377   not (get_option('prefix') / get_option('bindir')).startswith(get_option('prefix') / '')
4378   message()
4379   warning('bindir not included within prefix, the installation will not be relocatable.')
4380   actually_reloc = false
4381 endif
4382 if not actually_reloc and (targetos == 'windows' or get_option('relocatable'))
4383   if targetos == 'windows'
4384     message()
4385     warning('Windows installs should usually be relocatable.')
4386   endif
4387   message()
4388   message('QEMU will have to be installed under ' + get_option('prefix') + '.')
4389   message('Use --disable-relocatable to remove this warning.')
4390 endif