meson.build

   1 project('qemu', ['c'], meson_version: '>=0.63.0',
   2         default_options: ['warning_level=1', 'c_std=gnu11', 'cpp_std=gnu++11', 'b_colorout=auto',
   3                           'b_staticpic=false', 'stdsplit=false', 'optimization=2', 'b_pie=true'],
   4         version: files('VERSION'))
   5
   6 add_test_setup('quick', exclude_suites: ['slow', 'thorough'], is_default: true)
   7 add_test_setup('slow', exclude_suites: ['thorough'], env: ['G_TEST_SLOW=1', 'SPEED=slow'])
   8 add_test_setup('thorough', env: ['G_TEST_SLOW=1', 'SPEED=thorough'])
   9
  10 meson.add_postconf_script(find_program('scripts/symlink-install-tree.py'))
  11
  12 not_found = dependency('', required: false)
  13 keyval = import('keyval')
  14 ss = import('sourceset')
  15 fs = import('fs')
  16
  17 targetos = host_machine.system()
  18 sh = find_program('sh')
  19 config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
  20
  21 cc = meson.get_compiler('c')
  22 all_languages = ['c']
  23 if add_languages('cpp', required: false, native: false)
  24   all_languages += ['cpp']
  25   cxx = meson.get_compiler('cpp')
  26 endif
  27 if targetos == 'darwin' and \
  28    add_languages('objc', required: get_option('cocoa'), native: false)
  29   all_languages += ['objc']
  30   objc = meson.get_compiler('objc')
  31 endif
  32
  33 # Temporary directory used for files created while
  34 # configure runs. Since it is in the build directory
  35 # we can safely blow away any previous version of it
  36 # (and we need not jump through hoops to try to delete
  37 # it when configure exits.)
  38 tmpdir = meson.current_build_dir() / 'meson-private/temp'
  39
  40 if get_option('qemu_suffix').startswith('/')
  41   error('qemu_suffix cannot start with a /')
  42 endif
  43
  44 qemu_confdir = get_option('sysconfdir') / get_option('qemu_suffix')
  45 qemu_datadir = get_option('datadir') / get_option('qemu_suffix')
  46 qemu_docdir = get_option('docdir') / get_option('qemu_suffix')
  47 qemu_moddir = get_option('libdir') / get_option('qemu_suffix')
  48
  49 qemu_desktopdir = get_option('datadir') / 'applications'
  50 qemu_icondir = get_option('datadir') / 'icons'
  51
  52 config_host_data = configuration_data()
  53 genh = []
  54 qapi_trace_events = []
  55
  56 bsd_oses = ['gnu/kfreebsd', 'freebsd', 'netbsd', 'openbsd', 'dragonfly', 'darwin']
  57 supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux']
  58 supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv', 'x86', 'x86_64',
  59   'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64']
  60
  61 cpu = host_machine.cpu_family()
  62
  63 # Unify riscv* to a single family.
  64 if cpu in ['riscv32', 'riscv64']
  65   cpu = 'riscv'
  66 endif
  67
  68 target_dirs = config_host['TARGET_DIRS'].split()
  69 have_linux_user = false
  70 have_bsd_user = false
  71 have_system = false
  72 foreach target : target_dirs
  73   have_linux_user = have_linux_user or target.endswith('linux-user')
  74   have_bsd_user = have_bsd_user or target.endswith('bsd-user')
  75   have_system = have_system or target.endswith('-softmmu')
  76 endforeach
  77 have_user = have_linux_user or have_bsd_user
  78 have_tools = get_option('tools') \
  79   .disable_auto_if(not have_system) \
  80   .allowed()
  81 have_ga = get_option('guest_agent') \
  82   .disable_auto_if(not have_system and not have_tools) \
  83   .require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
  84            error_message: 'unsupported OS for QEMU guest agent') \
  85   .allowed()
  86 enable_modules = get_option('modules') \
  87   .require(targetos != 'windows',
  88            error_message: 'Modules are not available for Windows') \
  89   .require(not get_option('prefer_static'),
  90            error_message: 'Modules are incompatible with static linking') \
  91   .allowed()
  92 have_block = have_system or have_tools
  93
  94 python = import('python').find_installation()
  95
  96 if cpu not in supported_cpus
  97   host_arch = 'unknown'
  98 elif cpu == 'x86'
  99   host_arch = 'i386'
 100 elif cpu == 'mips64'
 101   host_arch = 'mips'
 102 else
 103   host_arch = cpu
 104 endif
 105
 106 if cpu in ['x86', 'x86_64']
 107   kvm_targets = ['i386-softmmu', 'x86_64-softmmu']
 108 elif cpu == 'aarch64'
 109   kvm_targets = ['aarch64-softmmu']
 110 elif cpu == 's390x'
 111   kvm_targets = ['s390x-softmmu']
 112 elif cpu in ['ppc', 'ppc64']
 113   kvm_targets = ['ppc-softmmu', 'ppc64-softmmu']
 114 elif cpu in ['mips', 'mips64']
 115   kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu']
 116 elif cpu in ['riscv']
 117   kvm_targets = ['riscv32-softmmu', 'riscv64-softmmu']
 118 else
 119   kvm_targets = []
 120 endif
 121
 122 kvm_targets_c = '""'
 123 if get_option('kvm').allowed() and targetos == 'linux'
 124   kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
 125 endif
 126 config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
 127
 128 accelerator_targets = { 'CONFIG_KVM': kvm_targets }
 129
 130 if cpu in ['aarch64']
 131   accelerator_targets += {
 132     'CONFIG_HVF': ['aarch64-softmmu']
 133   }
 134 endif
 135
 136 if cpu in ['x86', 'x86_64', 'arm', 'aarch64']
 137   # i386 emulator provides xenpv machine type for multiple architectures
 138   accelerator_targets += {
 139     'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu'],
 140   }
 141 endif
 142 if cpu in ['x86', 'x86_64']
 143   accelerator_targets += {
 144     'CONFIG_HAX': ['i386-softmmu', 'x86_64-softmmu'],
 145     'CONFIG_HVF': ['x86_64-softmmu'],
 146     'CONFIG_NVMM': ['i386-softmmu', 'x86_64-softmmu'],
 147     'CONFIG_WHPX': ['i386-softmmu', 'x86_64-softmmu'],
 148   }
 149 endif
 150
 151 modular_tcg = []
 152 # Darwin does not support references to thread-local variables in modules
 153 if targetos != 'darwin'
 154   modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
 155 endif
 156
 157 edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
 158 unpack_edk2_blobs = false
 159 foreach target : edk2_targets
 160   if target in target_dirs
 161     bzip2 = find_program('bzip2', required: get_option('install_blobs'))
 162     unpack_edk2_blobs = bzip2.found()
 163     break
 164   endif
 165 endforeach
 166
 167 dtrace = not_found
 168 stap = not_found
 169 if 'dtrace' in get_option('trace_backends')
 170   dtrace = find_program('dtrace', required: true)
 171   stap = find_program('stap', required: false)
 172   if stap.found()
 173     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
 174     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
 175     # instead. QEMU --enable-modules depends on this because the SystemTap
 176     # semaphores are linked into the main binary and not the module's shared
 177     # object.
 178     add_global_arguments('-DSTAP_SDT_V2',
 179                          native: false, language: all_languages)
 180   endif
 181 endif
 182
 183 if get_option('iasl') == ''
 184   iasl = find_program('iasl', required: false)
 185 else
 186   iasl = find_program(get_option('iasl'), required: true)
 187 endif
 188
 189 ##################
 190 # Compiler flags #
 191 ##################
 192
 193 # default flags for all hosts
 194 # We use -fwrapv to tell the compiler that we require a C dialect where
 195 # left shift of signed integers is well defined and has the expected
 196 # 2s-complement style results. (Both clang and gcc agree that it
 197 # provides these semantics.)
 198
 199 qemu_common_flags = [
 200   '-D_GNU_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE',
 201   '-fno-strict-aliasing', '-fno-common', '-fwrapv' ]
 202 qemu_cflags = []
 203 qemu_ldflags = []
 204
 205 if targetos == 'darwin'
 206   # Disable attempts to use ObjectiveC features in os/object.h since they
 207   # won't work when we're compiling with gcc as a C compiler.
 208   qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
 209 elif targetos == 'solaris'
 210   # needed for CMSG_ macros in sys/socket.h
 211   qemu_common_flags += '-D_XOPEN_SOURCE=600'
 212   # needed for TIOCWIN* defines in termios.h
 213   qemu_common_flags += '-D__EXTENSIONS__'
 214 elif targetos == 'haiku'
 215   qemu_common_flags += ['-DB_USE_POSITIVE_POSIX_ERRORS', '-D_BSD_SOURCE', '-fPIC']
 216 endif
 217
 218 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
 219 # use i686 as default anyway, but for those that don't, an explicit
 220 # specification is necessary
 221 if host_arch == 'i386' and not cc.links('''
 222   static int sfaa(int *ptr)
 223   {
 224     return __sync_fetch_and_and(ptr, 0);
 225   }
 226
 227   int main(void)
 228   {
 229     int val = 42;
 230     val = __sync_val_compare_and_swap(&val, 0, 1);
 231     sfaa(&val);
 232     return val;
 233   }''')
 234   qemu_common_flags = ['-march=i486'] + qemu_common_flags
 235 endif
 236
 237 if get_option('gprof')
 238   qemu_common_flags += ['-p']
 239   qemu_ldflags += ['-p']
 240 endif
 241
 242 if get_option('prefer_static')
 243   qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static'
 244 endif
 245
 246 # Meson currently only handles pie as a boolean for now, so if the user
 247 # has explicitly disabled PIE we need to extend our cflags.
 248 if not get_option('b_pie')
 249   qemu_common_flags += cc.get_supported_arguments('-fno-pie')
 250   if not get_option('prefer_static')
 251     # No PIE is implied by -static which we added above.
 252     qemu_ldflags += cc.get_supported_link_arguments('-no-pie')
 253   endif
 254 endif
 255
 256 if not get_option('stack_protector').disabled()
 257   stack_protector_probe = '''
 258     int main(int argc, char *argv[])
 259     {
 260       char arr[64], *p = arr, *c = argv[argc - 1];
 261       while (*c) {
 262           *p++ = *c++;
 263       }
 264       return 0;
 265     }'''
 266   have_stack_protector = false
 267   foreach arg : ['-fstack-protector-strong', '-fstack-protector-all']
 268     # We need to check both a compile and a link, since some compiler
 269     # setups fail only on a .c->.o compile and some only at link time
 270     if cc.compiles(stack_protector_probe, args: ['-Werror', arg]) and \
 271        cc.links(stack_protector_probe, args: ['-Werror', arg])
 272       have_stack_protector = true
 273       qemu_cflags += arg
 274       qemu_ldflags += arg
 275       break
 276     endif
 277   endforeach
 278   get_option('stack_protector') \
 279     .require(have_stack_protector, error_message: 'Stack protector not supported')
 280 endif
 281
 282 coroutine_backend = get_option('coroutine_backend')
 283 ucontext_probe = '''
 284   #include <ucontext.h>
 285   #ifdef __stub_makecontext
 286   #error Ignoring glibc stub makecontext which will always fail
 287   #endif
 288   int main(void) { makecontext(0, 0, 0); return 0; }'''
 289
 290 # On Windows the only valid backend is the Windows specific one.
 291 # For POSIX prefer ucontext, but it's not always possible. The fallback
 292 # is sigcontext.
 293 supported_backends = []
 294 if targetos == 'windows'
 295   supported_backends += ['windows']
 296 else
 297   if targetos != 'darwin' and cc.links(ucontext_probe)
 298     supported_backends += ['ucontext']
 299   endif
 300   supported_backends += ['sigaltstack']
 301 endif
 302
 303 if coroutine_backend == 'auto'
 304   coroutine_backend = supported_backends[0]
 305 elif coroutine_backend not in supported_backends
 306   error('"@0@" backend requested but not available.  Available backends: @1@' \
 307         .format(coroutine_backend, ', '.join(supported_backends)))
 308 endif
 309
 310 # Compiles if SafeStack *not* enabled
 311 safe_stack_probe = '''
 312   int main(void)
 313   {
 314   #if defined(__has_feature)
 315   #if __has_feature(safe_stack)
 316   #error SafeStack Enabled
 317   #endif
 318   #endif
 319       return 0;
 320   }'''
 321 if get_option('safe_stack') != not cc.compiles(safe_stack_probe)
 322   safe_stack_arg = get_option('safe_stack') ? '-fsanitize=safe-stack' : '-fno-sanitize=safe-stack'
 323   if get_option('safe_stack') != not cc.compiles(safe_stack_probe, args: safe_stack_arg)
 324     error(get_option('safe_stack') \
 325           ? 'SafeStack not supported by your compiler' \
 326           : 'Cannot disable SafeStack')
 327   endif
 328   qemu_cflags += safe_stack_arg
 329   qemu_ldflags += safe_stack_arg
 330 endif
 331 if get_option('safe_stack') and coroutine_backend != 'ucontext'
 332   error('SafeStack is only supported with the ucontext coroutine backend')
 333 endif
 334
 335 if get_option('sanitizers')
 336   if cc.has_argument('-fsanitize=address')
 337     qemu_cflags = ['-fsanitize=address'] + qemu_cflags
 338     qemu_ldflags = ['-fsanitize=address'] + qemu_ldflags
 339   endif
 340
 341   # Detect static linking issue with ubsan - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
 342   if cc.links('int main(int argc, char **argv) { return argc + 1; }',
 343               args: [qemu_ldflags, '-fsanitize=undefined'])
 344     qemu_cflags = ['-fsanitize=undefined'] + qemu_cflags
 345     qemu_ldflags = ['-fsanitize=undefined'] + qemu_ldflags
 346   endif
 347 endif
 348
 349 # Thread sanitizer is, for now, much noisier than the other sanitizers;
 350 # keep it separate until that is not the case.
 351 if get_option('tsan')
 352   if get_option('sanitizers')
 353     error('TSAN is not supported with other sanitizers')
 354   endif
 355   if not cc.has_function('__tsan_create_fiber',
 356                          args: '-fsanitize=thread',
 357                          prefix: '#include <sanitizer/tsan_interface.h>')
 358     error('Cannot enable TSAN due to missing fiber annotation interface')
 359   endif
 360   qemu_cflags = ['-fsanitize=thread'] + qemu_cflags
 361   qemu_ldflags = ['-fsanitize=thread'] + qemu_ldflags
 362 endif
 363
 364 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
 365 # The combination is known as "full relro", because .got.plt is read-only too.
 366 qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
 367
 368 if targetos == 'windows'
 369   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
 370   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
 371 endif
 372
 373 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
 374 if targetos != 'sunos' and not get_option('tsan')
 375   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--warn-common')
 376 endif
 377
 378 # Specify linker-script with add_project_link_arguments so that it is not placed
 379 # within a linker --start-group/--end-group pair
 380 if get_option('fuzzing')
 381   # Specify a filter to only instrument code that is directly related to
 382   # virtual-devices.
 383   configure_file(output: 'instrumentation-filter',
 384                  input: 'scripts/oss-fuzz/instrumentation-filter-template',
 385                  copy: true)
 386
 387   if cc.compiles('int main () { return 0; }',
 388                   name: '-fsanitize-coverage-allowlist=/dev/null',
 389                  args: ['-fsanitize-coverage-allowlist=/dev/null',
 390                         '-fsanitize-coverage=trace-pc'] )
 391     qemu_common_flags += ['-fsanitize-coverage-allowlist=instrumentation-filter']
 392   endif
 393
 394   if get_option('fuzzing_engine') == ''
 395     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
 396     # compiled code.  To build non-fuzzer binaries with --enable-fuzzing, link
 397     # everything with fsanitize=fuzzer-no-link. Otherwise, the linker will be
 398     # unable to bind the fuzzer-related callbacks added by instrumentation.
 399     qemu_common_flags += ['-fsanitize=fuzzer-no-link']
 400     qemu_ldflags += ['-fsanitize=fuzzer-no-link']
 401     # For the actual fuzzer binaries, we need to link against the libfuzzer
 402     # library. They need to be configurable, to support OSS-Fuzz
 403     fuzz_exe_ldflags = ['-fsanitize=fuzzer']
 404   else
 405     # LIB_FUZZING_ENGINE was set; assume we are running on OSS-Fuzz, and
 406     # the needed CFLAGS have already been provided
 407     fuzz_exe_ldflags = get_option('fuzzing_engine').split()
 408   endif
 409 endif
 410
 411 add_global_arguments(qemu_common_flags, native: false, language: all_languages)
 412 add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
 413
 414 # Collect warnings that we want to enable
 415
 416 warn_flags = [
 417   '-Wundef',
 418   '-Wwrite-strings',
 419   '-Wmissing-prototypes',
 420   '-Wstrict-prototypes',
 421   '-Wredundant-decls',
 422   '-Wold-style-declaration',
 423   '-Wold-style-definition',
 424   '-Wtype-limits',
 425   '-Wformat-security',
 426   '-Wformat-y2k',
 427   '-Winit-self',
 428   '-Wignored-qualifiers',
 429   '-Wempty-body',
 430   '-Wnested-externs',
 431   '-Wendif-labels',
 432   '-Wexpansion-to-defined',
 433   '-Wimplicit-fallthrough=2',
 434   '-Wmissing-format-attribute',
 435   '-Wno-initializer-overrides',
 436   '-Wno-missing-include-dirs',
 437   '-Wno-shift-negative-value',
 438   '-Wno-string-plus-int',
 439   '-Wno-typedef-redefinition',
 440   '-Wno-tautological-type-limit-compare',
 441   '-Wno-psabi',
 442   '-Wno-gnu-variable-sized-type-not-at-end',
 443 ]
 444
 445 if targetos != 'darwin'
 446   warn_flags += ['-Wthread-safety']
 447 endif
 448
 449 # Check that the C++ compiler exists and works with the C compiler.
 450 link_language = 'c'
 451 linker = cc
 452 qemu_cxxflags = []
 453 if 'cpp' in all_languages
 454   qemu_cxxflags = ['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'] + qemu_cflags
 455   if cxx.links(files('scripts/main.c'), args: qemu_cflags)
 456     link_language = 'cpp'
 457     linker = cxx
 458   else
 459     message('C++ compiler does not work with C compiler')
 460     message('Disabling C++-specific optional code')
 461   endif
 462 endif
 463
 464 # clang does not support glibc + FORTIFY_SOURCE (is it still true?)
 465 if get_option('optimization') != '0' and targetos == 'linux'
 466   if cc.get_id() == 'gcc'
 467     qemu_cflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 468   endif
 469   if 'cpp' in all_languages and cxx.get_id() == 'gcc'
 470     qemu_cxxflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
 471   endif
 472 endif
 473
 474 add_project_arguments(qemu_cflags, native: false, language: 'c')
 475 add_project_arguments(cc.get_supported_arguments(warn_flags), native: false, language: 'c')
 476 if 'cpp' in all_languages
 477   add_project_arguments(qemu_cxxflags, native: false, language: 'cpp')
 478   add_project_arguments(cxx.get_supported_arguments(warn_flags), native: false, language: 'cpp')
 479 endif
 480 if 'objc' in all_languages
 481   # Note sanitizer flags are not applied to Objective-C sources!
 482   add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
 483 endif
 484 if targetos == 'linux'
 485   add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
 486                         '-isystem', 'linux-headers',
 487                         language: all_languages)
 488 endif
 489
 490 add_project_arguments('-iquote', '.',
 491                       '-iquote', meson.current_source_dir(),
 492                       '-iquote', meson.current_source_dir() / 'include',
 493                       language: all_languages)
 494
 495 sparse = find_program('cgcc', required: get_option('sparse'))
 496 if sparse.found()
 497   run_target('sparse',
 498              command: [find_program('scripts/check_sparse.py'),
 499                        'compile_commands.json', sparse.full_path(), '-Wbitwise',
 500                        '-Wno-transparent-union', '-Wno-old-initializer',
 501                        '-Wno-non-pointer-null'])
 502 endif
 503
 504 ###########################################
 505 # Target-specific checks and dependencies #
 506 ###########################################
 507
 508 # Fuzzing
 509 if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
 510     not cc.links('''
 511           #include <stdint.h>
 512           #include <sys/types.h>
 513           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 514           int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 515         ''',
 516         args: ['-Werror', '-fsanitize=fuzzer'])
 517   error('Your compiler does not support -fsanitize=fuzzer')
 518 endif
 519
 520 # Tracing backends
 521 if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
 522   error('ftrace is supported only on Linux')
 523 endif
 524 if 'syslog' in get_option('trace_backends') and not cc.compiles('''
 525     #include <syslog.h>
 526     int main(void) {
 527         openlog("qemu", LOG_PID, LOG_DAEMON);
 528         syslog(LOG_INFO, "configure");
 529         return 0;
 530     }''')
 531   error('syslog is not supported on this system')
 532 endif
 533
 534 # Miscellaneous Linux-only features
 535 get_option('mpath') \
 536   .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
 537
 538 multiprocess_allowed = get_option('multiprocess') \
 539   .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
 540   .allowed()
 541
 542 vfio_user_server_allowed = get_option('vfio_user_server') \
 543   .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
 544   .allowed()
 545
 546 have_tpm = get_option('tpm') \
 547   .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
 548   .allowed()
 549
 550 # vhost
 551 have_vhost_user = get_option('vhost_user') \
 552   .disable_auto_if(targetos != 'linux') \
 553   .require(targetos != 'windows',
 554            error_message: 'vhost-user is not available on Windows').allowed()
 555 have_vhost_vdpa = get_option('vhost_vdpa') \
 556   .require(targetos == 'linux',
 557            error_message: 'vhost-vdpa is only available on Linux').allowed()
 558 have_vhost_kernel = get_option('vhost_kernel') \
 559   .require(targetos == 'linux',
 560            error_message: 'vhost-kernel is only available on Linux').allowed()
 561 have_vhost_user_crypto = get_option('vhost_crypto') \
 562   .require(have_vhost_user,
 563            error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
 564
 565 have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
 566
 567 have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
 568 have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
 569 have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
 570 have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
 571
 572 # Target-specific libraries and flags
 573 libm = cc.find_library('m', required: false)
 574 threads = dependency('threads')
 575 util = cc.find_library('util', required: false)
 576 winmm = []
 577 socket = []
 578 version_res = []
 579 coref = []
 580 iokit = []
 581 emulator_link_args = []
 582 nvmm =not_found
 583 hvf = not_found
 584 midl = not_found
 585 widl = not_found
 586 pathcch = not_found
 587 host_dsosuf = '.so'
 588 if targetos == 'windows'
 589   midl = find_program('midl', required: false)
 590   widl = find_program('widl', required: false)
 591   pathcch = cc.find_library('pathcch')
 592   socket = cc.find_library('ws2_32')
 593   winmm = cc.find_library('winmm')
 594
 595   win = import('windows')
 596   version_res = win.compile_resources('version.rc',
 597                                       depend_files: files('pc-bios/qemu-nsis.ico'),
 598                                       include_directories: include_directories('.'))
 599   host_dsosuf = '.dll'
 600 elif targetos == 'darwin'
 601   coref = dependency('appleframeworks', modules: 'CoreFoundation')
 602   iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
 603   host_dsosuf = '.dylib'
 604 elif targetos == 'sunos'
 605   socket = [cc.find_library('socket'),
 606             cc.find_library('nsl'),
 607             cc.find_library('resolv')]
 608 elif targetos == 'haiku'
 609   socket = [cc.find_library('posix_error_mapper'),
 610             cc.find_library('network'),
 611             cc.find_library('bsd')]
 612 elif targetos == 'openbsd'
 613   if get_option('tcg').allowed() and target_dirs.length() > 0
 614     # Disable OpenBSD W^X if available
 615     emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
 616   endif
 617 endif
 618
 619 # Target-specific configuration of accelerators
 620 accelerators = []
 621 if get_option('kvm').allowed() and targetos == 'linux'
 622   accelerators += 'CONFIG_KVM'
 623 endif
 624 if get_option('whpx').allowed() and targetos == 'windows'
 625   if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
 626     error('WHPX requires 64-bit host')
 627   elif cc.has_header('WinHvPlatform.h', required: get_option('whpx')) and \
 628        cc.has_header('WinHvEmulation.h', required: get_option('whpx'))
 629     accelerators += 'CONFIG_WHPX'
 630   endif
 631 endif
 632 if get_option('hvf').allowed()
 633   hvf = dependency('appleframeworks', modules: 'Hypervisor',
 634                    required: get_option('hvf'))
 635   if hvf.found()
 636     accelerators += 'CONFIG_HVF'
 637   endif
 638 endif
 639 if get_option('hax').allowed()
 640   if get_option('hax').enabled() or targetos in ['windows', 'darwin', 'netbsd']
 641     accelerators += 'CONFIG_HAX'
 642   endif
 643 endif
 644 if targetos == 'netbsd'
 645   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
 646   if nvmm.found()
 647     accelerators += 'CONFIG_NVMM'
 648   endif
 649 endif
 650
 651 tcg_arch = host_arch
 652 if get_option('tcg').allowed()
 653   if host_arch == 'unknown'
 654     if get_option('tcg_interpreter')
 655       warning('Unsupported CPU @0@, will use TCG with TCI (slow)'.format(cpu))
 656     else
 657       error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
 658     endif
 659   elif get_option('tcg_interpreter')
 660     warning('Use of the TCG interpreter is not recommended on this host')
 661     warning('architecture. There is a native TCG execution backend available')
 662     warning('which provides substantially better performance and reliability.')
 663     warning('It is strongly recommended to remove the --enable-tcg-interpreter')
 664     warning('configuration option on this architecture to use the native')
 665     warning('backend.')
 666   endif
 667   if get_option('tcg_interpreter')
 668     tcg_arch = 'tci'
 669     config_host += { 'CONFIG_TCG_INTERPRETER': 'y' }
 670   elif host_arch == 'x86_64'
 671     tcg_arch = 'i386'
 672   elif host_arch == 'ppc64'
 673     tcg_arch = 'ppc'
 674   endif
 675   add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
 676                         language: all_languages)
 677
 678   accelerators += 'CONFIG_TCG'
 679   config_host += { 'CONFIG_TCG': 'y' }
 680 endif
 681
 682 if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
 683   error('KVM not available on this platform')
 684 endif
 685 if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
 686   error('HVF not available on this platform')
 687 endif
 688 if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
 689   error('NVMM not available on this platform')
 690 endif
 691 if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
 692   error('WHPX not available on this platform')
 693 endif
 694
 695 ################
 696 # Dependencies #
 697 ################
 698
 699 # When bumping glib minimum version, please check also whether to increase
 700 # the _WIN32_WINNT setting in osdep.h according to the value from glib
 701 glib_req_ver = '>=2.56.0'
 702 glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
 703                     method: 'pkg-config')
 704 glib_cflags = []
 705 if enable_modules
 706   gmodule = dependency('gmodule-export-2.0', version: glib_req_ver, required: true,
 707                        method: 'pkg-config')
 708 elif config_host.has_key('CONFIG_PLUGIN')
 709   gmodule = dependency('gmodule-no-export-2.0', version: glib_req_ver, required: true,
 710                        method: 'pkg-config')
 711 else
 712   gmodule = not_found
 713 endif
 714
 715 # This workaround is required due to a bug in pkg-config file for glib as it
 716 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
 717 if targetos == 'windows' and get_option('prefer_static')
 718   glib_cflags += ['-DGLIB_STATIC_COMPILATION']
 719 endif
 720
 721 # Sanity check that the current size_t matches the
 722 # size that glib thinks it should be. This catches
 723 # problems on multi-arch where people try to build
 724 # 32-bit QEMU while pointing at 64-bit glib headers
 725
 726 if not cc.compiles('''
 727   #include <glib.h>
 728   #include <unistd.h>
 729
 730   #define QEMU_BUILD_BUG_ON(x) \
 731   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
 732
 733   int main(void) {
 734      QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
 735      return 0;
 736   }''', dependencies: glib_pc, args: glib_cflags)
 737   error('''sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
 738         You probably need to set PKG_CONFIG_LIBDIR" to point
 739         to the right pkg-config files for your build target.''')
 740 endif
 741
 742 # Silence clang warnings triggered by glib < 2.57.2
 743 if not cc.compiles('''
 744   #include <glib.h>
 745   typedef struct Foo {
 746     int i;
 747   } Foo;
 748   static void foo_free(Foo *f)
 749   {
 750     g_free(f);
 751   }
 752   G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
 753   int main(void) { return 0; }''', dependencies: glib_pc, args: ['-Werror'])
 754   glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
 755 endif
 756 glib = declare_dependency(dependencies: [glib_pc, gmodule],
 757                           compile_args: glib_cflags,
 758                           version: glib_pc.version())
 759
 760 # Check whether glib has gslice, which we have to avoid for correctness.
 761 # TODO: remove this check and the corresponding workaround (qtree) when
 762 # the minimum supported glib is >= 2.75.3
 763 glib_has_gslice = glib.version().version_compare('<2.75.3')
 764
 765 # override glib dep to include the above refinements
 766 meson.override_dependency('glib-2.0', glib)
 767
 768 # The path to glib.h is added to all compilation commands.
 769 add_project_dependencies(glib.partial_dependency(compile_args: true, includes: true),
 770                          native: false, language: all_languages)
 771
 772 gio = not_found
 773 gdbus_codegen = not_found
 774 gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
 775 if not get_option('gio').auto() or have_system
 776   gio = dependency('gio-2.0', required: get_option('gio'),
 777                    method: 'pkg-config')
 778   if gio.found() and not cc.links('''
 779     #include <gio/gio.h>
 780     int main(void)
 781     {
 782       g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
 783       return 0;
 784     }''', dependencies: [glib, gio])
 785     if get_option('gio').enabled()
 786       error('The installed libgio is broken for static linking')
 787     endif
 788     gio = not_found
 789   endif
 790   if gio.found()
 791     gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
 792                                  required: get_option('gio'))
 793     gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
 794                           method: 'pkg-config')
 795     gio = declare_dependency(dependencies: [gio, gio_unix],
 796                              version: gio.version())
 797   endif
 798 endif
 799 if gdbus_codegen.found() and get_option('cfi')
 800   gdbus_codegen = not_found
 801   gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
 802 endif
 803
 804 lttng = not_found
 805 if 'ust' in get_option('trace_backends')
 806   lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
 807                      method: 'pkg-config')
 808 endif
 809 pixman = not_found
 810 if have_system or have_tools
 811   pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
 812                       method: 'pkg-config')
 813 endif
 814 zlib = dependency('zlib', required: true)
 815
 816 libaio = not_found
 817 if not get_option('linux_aio').auto() or have_block
 818   libaio = cc.find_library('aio', has_headers: ['libaio.h'],
 819                            required: get_option('linux_aio'))
 820 endif
 821
 822 linux_io_uring_test = '''
 823   #include <liburing.h>
 824   #include <linux/errqueue.h>
 825
 826   int main(void) { return 0; }'''
 827
 828 linux_io_uring = not_found
 829 if not get_option('linux_io_uring').auto() or have_block
 830   linux_io_uring = dependency('liburing', version: '>=0.3',
 831                               required: get_option('linux_io_uring'),
 832                               method: 'pkg-config')
 833   if not cc.links(linux_io_uring_test)
 834     linux_io_uring = not_found
 835   endif
 836 endif
 837
 838 libnfs = not_found
 839 if not get_option('libnfs').auto() or have_block
 840   libnfs = dependency('libnfs', version: '>=1.9.3',
 841                       required: get_option('libnfs'),
 842                       method: 'pkg-config')
 843 endif
 844
 845 libattr_test = '''
 846   #include <stddef.h>
 847   #include <sys/types.h>
 848   #ifdef CONFIG_LIBATTR
 849   #include <attr/xattr.h>
 850   #else
 851   #include <sys/xattr.h>
 852   #endif
 853   int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
 854
 855 libattr = not_found
 856 have_old_libattr = false
 857 if get_option('attr').allowed()
 858   if cc.links(libattr_test)
 859     libattr = declare_dependency()
 860   else
 861     libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
 862                               required: get_option('attr'))
 863     if libattr.found() and not \
 864       cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
 865       libattr = not_found
 866       if get_option('attr').enabled()
 867         error('could not link libattr')
 868       else
 869         warning('could not link libattr, disabling')
 870       endif
 871     else
 872       have_old_libattr = libattr.found()
 873     endif
 874   endif
 875 endif
 876
 877 cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
 878                    required: get_option('cocoa'))
 879
 880 vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
 881 if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
 882                                               'VMNET_BRIDGED_MODE',
 883                                               dependencies: vmnet)
 884   vmnet = not_found
 885   if get_option('vmnet').enabled()
 886     error('vmnet.framework API is outdated')
 887   else
 888     warning('vmnet.framework API is outdated, disabling')
 889   endif
 890 endif
 891
 892 seccomp = not_found
 893 seccomp_has_sysrawrc = false
 894 if not get_option('seccomp').auto() or have_system or have_tools
 895   seccomp = dependency('libseccomp', version: '>=2.3.0',
 896                        required: get_option('seccomp'),
 897                        method: 'pkg-config')
 898   if seccomp.found()
 899     seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
 900                                                 'SCMP_FLTATR_API_SYSRAWRC',
 901                                                 dependencies: seccomp)
 902   endif
 903 endif
 904
 905 libcap_ng = not_found
 906 if not get_option('cap_ng').auto() or have_system or have_tools
 907   libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
 908                               required: get_option('cap_ng'))
 909 endif
 910 if libcap_ng.found() and not cc.links('''
 911    #include <cap-ng.h>
 912    int main(void)
 913    {
 914      capng_capability_to_name(CAPNG_EFFECTIVE);
 915      return 0;
 916    }''', dependencies: libcap_ng)
 917   libcap_ng = not_found
 918   if get_option('cap_ng').enabled()
 919     error('could not link libcap-ng')
 920   else
 921     warning('could not link libcap-ng, disabling')
 922   endif
 923 endif
 924
 925 if get_option('xkbcommon').auto() and not have_system and not have_tools
 926   xkbcommon = not_found
 927 else
 928   xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
 929                          method: 'pkg-config')
 930 endif
 931
 932 slirp = not_found
 933 if not get_option('slirp').auto() or have_system
 934   slirp = dependency('slirp', required: get_option('slirp'),
 935                      method: 'pkg-config')
 936   # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
 937   # it passes function pointers within libslirp as callbacks for timers.
 938   # When using a system-wide shared libslirp, the type information for the
 939   # callback is missing and the timer call produces a false positive with CFI.
 940   # Do not use the "version" keyword argument to produce a better error.
 941   # with control-flow integrity.
 942   if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
 943     if get_option('slirp').enabled()
 944       error('Control-Flow Integrity requires libslirp 4.7.')
 945     else
 946       warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
 947       slirp = not_found
 948     endif
 949   endif
 950 endif
 951
 952 vde = not_found
 953 if not get_option('vde').auto() or have_system or have_tools
 954   vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
 955                            required: get_option('vde'))
 956 endif
 957 if vde.found() and not cc.links('''
 958    #include <libvdeplug.h>
 959    int main(void)
 960    {
 961      struct vde_open_args a = {0, 0, 0};
 962      char s[] = "";
 963      vde_open(s, s, &a);
 964      return 0;
 965    }''', dependencies: vde)
 966   vde = not_found
 967   if get_option('cap_ng').enabled()
 968     error('could not link libvdeplug')
 969   else
 970     warning('could not link libvdeplug, disabling')
 971   endif
 972 endif
 973
 974 pulse = not_found
 975 if not get_option('pa').auto() or (targetos == 'linux' and have_system)
 976   pulse = dependency('libpulse', required: get_option('pa'),
 977                      method: 'pkg-config')
 978 endif
 979 alsa = not_found
 980 if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
 981   alsa = dependency('alsa', required: get_option('alsa'),
 982                     method: 'pkg-config')
 983 endif
 984 jack = not_found
 985 if not get_option('jack').auto() or have_system
 986   jack = dependency('jack', required: get_option('jack'),
 987                     method: 'pkg-config')
 988 endif
 989 pipewire = not_found
 990 if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
 991   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
 992                     required: get_option('pipewire'),
 993                     method: 'pkg-config')
 994 endif
 995 sndio = not_found
 996 if not get_option('sndio').auto() or have_system
 997   sndio = dependency('sndio', required: get_option('sndio'),
 998                     method: 'pkg-config')
 999 endif
1000
1001 spice_protocol = not_found
1002 if not get_option('spice_protocol').auto() or have_system
1003   spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
1004                               required: get_option('spice_protocol'),
1005                               method: 'pkg-config')
1006 endif
1007 spice = not_found
1008 if not get_option('spice').auto() or have_system
1009   spice = dependency('spice-server', version: '>=0.14.0',
1010                      required: get_option('spice'),
1011                      method: 'pkg-config')
1012 endif
1013 spice_headers = spice.partial_dependency(compile_args: true, includes: true)
1014
1015 rt = cc.find_library('rt', required: false)
1016
1017 libiscsi = not_found
1018 if not get_option('libiscsi').auto() or have_block
1019   libiscsi = dependency('libiscsi', version: '>=1.9.0',
1020                          required: get_option('libiscsi'),
1021                          method: 'pkg-config')
1022 endif
1023 zstd = not_found
1024 if not get_option('zstd').auto() or have_block
1025   zstd = dependency('libzstd', version: '>=1.4.0',
1026                     required: get_option('zstd'),
1027                     method: 'pkg-config')
1028 endif
1029 virgl = not_found
1030
1031 have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
1032 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
1033   virgl = dependency('virglrenderer',
1034                      method: 'pkg-config',
1035                      required: get_option('virglrenderer'))
1036 endif
1037 blkio = not_found
1038 if not get_option('blkio').auto() or have_block
1039   blkio = dependency('blkio',
1040                      method: 'pkg-config',
1041                      required: get_option('blkio'))
1042 endif
1043 curl = not_found
1044 if not get_option('curl').auto() or have_block
1045   curl = dependency('libcurl', version: '>=7.29.0',
1046                     method: 'pkg-config',
1047                     required: get_option('curl'))
1048 endif
1049 libudev = not_found
1050 if targetos == 'linux' and (have_system or have_tools)
1051   libudev = dependency('libudev',
1052                        method: 'pkg-config',
1053                        required: get_option('libudev'))
1054 endif
1055
1056 mpathlibs = [libudev]
1057 mpathpersist = not_found
1058 mpathpersist_new_api = false
1059 if targetos == 'linux' and have_tools and get_option('mpath').allowed()
1060   mpath_test_source_new = '''
1061     #include <libudev.h>
1062     #include <mpath_persist.h>
1063     unsigned mpath_mx_alloc_len = 1024;
1064     int logsink;
1065     static struct config *multipath_conf;
1066     extern struct udev *udev;
1067     extern struct config *get_multipath_config(void);
1068     extern void put_multipath_config(struct config *conf);
1069     struct udev *udev;
1070     struct config *get_multipath_config(void) { return multipath_conf; }
1071     void put_multipath_config(struct config *conf) { }
1072     int main(void) {
1073         udev = udev_new();
1074         multipath_conf = mpath_lib_init();
1075         return 0;
1076     }'''
1077   mpath_test_source_old = '''
1078       #include <libudev.h>
1079       #include <mpath_persist.h>
1080       unsigned mpath_mx_alloc_len = 1024;
1081       int logsink;
1082       int main(void) {
1083           struct udev *udev = udev_new();
1084           mpath_lib_init(udev);
1085           return 0;
1086       }'''
1087   libmpathpersist = cc.find_library('mpathpersist',
1088                                     required: get_option('mpath'))
1089   if libmpathpersist.found()
1090     mpathlibs += libmpathpersist
1091     if get_option('prefer_static')
1092       mpathlibs += cc.find_library('devmapper',
1093                                      required: get_option('mpath'))
1094     endif
1095     mpathlibs += cc.find_library('multipath',
1096                                  required: get_option('mpath'))
1097     foreach lib: mpathlibs
1098       if not lib.found()
1099         mpathlibs = []
1100         break
1101       endif
1102     endforeach
1103     if mpathlibs.length() == 0
1104       msg = 'Dependencies missing for libmpathpersist'
1105     elif cc.links(mpath_test_source_new, dependencies: mpathlibs)
1106       mpathpersist = declare_dependency(dependencies: mpathlibs)
1107       mpathpersist_new_api = true
1108     elif cc.links(mpath_test_source_old, dependencies: mpathlibs)
1109       mpathpersist = declare_dependency(dependencies: mpathlibs)
1110     else
1111       msg = 'Cannot detect libmpathpersist API'
1112     endif
1113     if not mpathpersist.found()
1114       if get_option('mpath').enabled()
1115         error(msg)
1116       else
1117         warning(msg + ', disabling')
1118       endif
1119     endif
1120   endif
1121 endif
1122
1123 iconv = not_found
1124 curses = not_found
1125 if have_system and get_option('curses').allowed()
1126   curses_test = '''
1127     #if defined(__APPLE__) || defined(__OpenBSD__)
1128     #define _XOPEN_SOURCE_EXTENDED 1
1129     #endif
1130     #include <locale.h>
1131     #include <curses.h>
1132     #include <wchar.h>
1133     int main(void) {
1134       wchar_t wch = L'w';
1135       setlocale(LC_ALL, "");
1136       resize_term(0, 0);
1137       addwstr(L"wide chars\n");
1138       addnwstr(&wch, 1);
1139       add_wch(WACS_DEGREE);
1140       return 0;
1141     }'''
1142
1143   curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
1144   curses = dependency(curses_dep_list,
1145                       required: false,
1146                       method: 'pkg-config')
1147   msg = get_option('curses').enabled() ? 'curses library not found' : ''
1148   curses_compile_args = ['-DNCURSES_WIDECHAR=1']
1149   if curses.found()
1150     if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
1151       curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
1152                                   version: curses.version())
1153     else
1154       msg = 'curses package not usable'
1155       curses = not_found
1156     endif
1157   endif
1158   if not curses.found()
1159     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1160     if targetos != 'windows' and not has_curses_h
1161       message('Trying with /usr/include/ncursesw')
1162       curses_compile_args += ['-I/usr/include/ncursesw']
1163       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
1164     endif
1165     if has_curses_h
1166       curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
1167       foreach curses_libname : curses_libname_list
1168         libcurses = cc.find_library(curses_libname,
1169                                     required: false)
1170         if libcurses.found()
1171           if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
1172             curses = declare_dependency(compile_args: curses_compile_args,
1173                                         dependencies: [libcurses])
1174             break
1175           else
1176             msg = 'curses library not usable'
1177           endif
1178         endif
1179       endforeach
1180     endif
1181   endif
1182   if get_option('iconv').allowed()
1183     foreach link_args : [ ['-liconv'], [] ]
1184       # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
1185       # We need to use libiconv if available because mixing libiconv's headers with
1186       # the system libc does not work.
1187       # However, without adding glib to the dependencies -L/usr/local/lib will not be
1188       # included in the command line and libiconv will not be found.
1189       if cc.links('''
1190         #include <iconv.h>
1191         int main(void) {
1192           iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
1193           return conv != (iconv_t) -1;
1194         }''', args: link_args, dependencies: glib)
1195         iconv = declare_dependency(link_args: link_args, dependencies: glib)
1196         break
1197       endif
1198     endforeach
1199   endif
1200   if curses.found() and not iconv.found()
1201     if get_option('iconv').enabled()
1202       error('iconv not available')
1203     endif
1204     msg = 'iconv required for curses UI but not available'
1205     curses = not_found
1206   endif
1207   if not curses.found() and msg != ''
1208     if get_option('curses').enabled()
1209       error(msg)
1210     else
1211       warning(msg + ', disabling')
1212     endif
1213   endif
1214 endif
1215
1216 brlapi = not_found
1217 if not get_option('brlapi').auto() or have_system
1218   brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
1219                          required: get_option('brlapi'))
1220   if brlapi.found() and not cc.links('''
1221      #include <brlapi.h>
1222      #include <stddef.h>
1223      int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
1224     brlapi = not_found
1225     if get_option('brlapi').enabled()
1226       error('could not link brlapi')
1227     else
1228       warning('could not link brlapi, disabling')
1229     endif
1230   endif
1231 endif
1232
1233 sdl = not_found
1234 if not get_option('sdl').auto() or have_system
1235   sdl = dependency('sdl2', required: get_option('sdl'))
1236   sdl_image = not_found
1237 endif
1238 if sdl.found()
1239   # work around 2.0.8 bug
1240   sdl = declare_dependency(compile_args: '-Wno-undef',
1241                            dependencies: sdl,
1242                            version: sdl.version())
1243   sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
1244                          method: 'pkg-config')
1245 else
1246   if get_option('sdl_image').enabled()
1247     error('sdl-image required, but SDL was @0@'.format(
1248           get_option('sdl').disabled() ? 'disabled' : 'not found'))
1249   endif
1250   sdl_image = not_found
1251 endif
1252
1253 rbd = not_found
1254 if not get_option('rbd').auto() or have_block
1255   librados = cc.find_library('rados', required: get_option('rbd'))
1256   librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1257                            required: get_option('rbd'))
1258   if librados.found() and librbd.found()
1259     if cc.links('''
1260       #include <stdio.h>
1261       #include <rbd/librbd.h>
1262       int main(void) {
1263         rados_t cluster;
1264         rados_create(&cluster, NULL);
1265         #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1266         #error
1267         #endif
1268         return 0;
1269       }''', dependencies: [librbd, librados])
1270       rbd = declare_dependency(dependencies: [librbd, librados])
1271     elif get_option('rbd').enabled()
1272       error('librbd >= 1.12.0 required')
1273     else
1274       warning('librbd >= 1.12.0 not found, disabling')
1275     endif
1276   endif
1277 endif
1278
1279 glusterfs = not_found
1280 glusterfs_ftruncate_has_stat = false
1281 glusterfs_iocb_has_stat = false
1282 if not get_option('glusterfs').auto() or have_block
1283   glusterfs = dependency('glusterfs-api', version: '>=3',
1284                          required: get_option('glusterfs'),
1285                          method: 'pkg-config')
1286   if glusterfs.found()
1287     glusterfs_ftruncate_has_stat = cc.links('''
1288       #include <glusterfs/api/glfs.h>
1289
1290       int
1291       main(void)
1292       {
1293           /* new glfs_ftruncate() passes two additional args */
1294           return glfs_ftruncate(NULL, 0, NULL, NULL);
1295       }
1296     ''', dependencies: glusterfs)
1297     glusterfs_iocb_has_stat = cc.links('''
1298       #include <glusterfs/api/glfs.h>
1299
1300       /* new glfs_io_cbk() passes two additional glfs_stat structs */
1301       static void
1302       glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1303       {}
1304
1305       int
1306       main(void)
1307       {
1308           glfs_io_cbk iocb = &glusterfs_iocb;
1309           iocb(NULL, 0 , NULL, NULL, NULL);
1310           return 0;
1311       }
1312     ''', dependencies: glusterfs)
1313   endif
1314 endif
1315
1316 libssh = not_found
1317 if not get_option('libssh').auto() or have_block
1318   libssh = dependency('libssh', version: '>=0.8.7',
1319                     method: 'pkg-config',
1320                     required: get_option('libssh'))
1321 endif
1322
1323 libbzip2 = not_found
1324 if not get_option('bzip2').auto() or have_block
1325   libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1326                              required: get_option('bzip2'))
1327   if libbzip2.found() and not cc.links('''
1328      #include <bzlib.h>
1329      int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1330     libbzip2 = not_found
1331     if get_option('bzip2').enabled()
1332       error('could not link libbzip2')
1333     else
1334       warning('could not link libbzip2, disabling')
1335     endif
1336   endif
1337 endif
1338
1339 liblzfse = not_found
1340 if not get_option('lzfse').auto() or have_block
1341   liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1342                              required: get_option('lzfse'))
1343 endif
1344 if liblzfse.found() and not cc.links('''
1345    #include <lzfse.h>
1346    int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1347   liblzfse = not_found
1348   if get_option('lzfse').enabled()
1349     error('could not link liblzfse')
1350   else
1351     warning('could not link liblzfse, disabling')
1352   endif
1353 endif
1354
1355 oss = not_found
1356 if get_option('oss').allowed() and have_system
1357   if not cc.has_header('sys/soundcard.h')
1358     # not found
1359   elif targetos == 'netbsd'
1360     oss = cc.find_library('ossaudio', required: get_option('oss'))
1361   else
1362     oss = declare_dependency()
1363   endif
1364
1365   if not oss.found()
1366     if get_option('oss').enabled()
1367       error('OSS not found')
1368     endif
1369   endif
1370 endif
1371 dsound = not_found
1372 if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1373   if cc.has_header('dsound.h')
1374     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1375   endif
1376
1377   if not dsound.found()
1378     if get_option('dsound').enabled()
1379       error('DirectSound not found')
1380     endif
1381   endif
1382 endif
1383
1384 coreaudio = not_found
1385 if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1386   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1387                          required: get_option('coreaudio'))
1388 endif
1389
1390 opengl = not_found
1391 if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1392   epoxy = dependency('epoxy', method: 'pkg-config',
1393                       required: get_option('opengl'))
1394   if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1395     opengl = epoxy
1396   elif get_option('opengl').enabled()
1397     error('epoxy/egl.h not found')
1398   endif
1399 endif
1400 gbm = not_found
1401 if (have_system or have_tools) and (virgl.found() or opengl.found())
1402   gbm = dependency('gbm', method: 'pkg-config', required: false)
1403 endif
1404 have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1405
1406 gnutls = not_found
1407 gnutls_crypto = not_found
1408 if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1409   # For general TLS support our min gnutls matches
1410   # that implied by our platform support matrix
1411   #
1412   # For the crypto backends, we look for a newer
1413   # gnutls:
1414   #
1415   #   Version 3.6.8  is needed to get XTS
1416   #   Version 3.6.13 is needed to get PBKDF
1417   #   Version 3.6.14 is needed to get HW accelerated XTS
1418   #
1419   # If newer enough gnutls isn't available, we can
1420   # still use a different crypto backend to satisfy
1421   # the platform support requirements
1422   gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1423                              method: 'pkg-config',
1424                              required: false)
1425   if gnutls_crypto.found()
1426     gnutls = gnutls_crypto
1427   else
1428     # Our min version if all we need is TLS
1429     gnutls = dependency('gnutls', version: '>=3.5.18',
1430                         method: 'pkg-config',
1431                         required: get_option('gnutls'))
1432   endif
1433 endif
1434
1435 # We prefer use of gnutls for crypto, unless the options
1436 # explicitly asked for nettle or gcrypt.
1437 #
1438 # If gnutls isn't available for crypto, then we'll prefer
1439 # gcrypt over nettle for performance reasons.
1440 gcrypt = not_found
1441 nettle = not_found
1442 hogweed = not_found
1443 xts = 'none'
1444
1445 if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1446   error('Only one of gcrypt & nettle can be enabled')
1447 endif
1448
1449 # Explicit nettle/gcrypt request, so ignore gnutls for crypto
1450 if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1451   gnutls_crypto = not_found
1452 endif
1453
1454 if not gnutls_crypto.found()
1455   if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1456     gcrypt = dependency('libgcrypt', version: '>=1.8',
1457                         method: 'config-tool',
1458                         required: get_option('gcrypt'))
1459     # Debian has removed -lgpg-error from libgcrypt-config
1460     # as it "spreads unnecessary dependencies" which in
1461     # turn breaks static builds...
1462     if gcrypt.found() and get_option('prefer_static')
1463       gcrypt = declare_dependency(dependencies:
1464         [gcrypt,
1465          cc.find_library('gpg-error', required: true)],
1466         version: gcrypt.version())
1467     endif
1468   endif
1469   if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1470     nettle = dependency('nettle', version: '>=3.4',
1471                         method: 'pkg-config',
1472                         required: get_option('nettle'))
1473     if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1474       xts = 'private'
1475     endif
1476   endif
1477 endif
1478
1479 gmp = dependency('gmp', required: false, method: 'pkg-config')
1480 if nettle.found() and gmp.found()
1481   hogweed = dependency('hogweed', version: '>=3.4',
1482                        method: 'pkg-config',
1483                        required: get_option('nettle'))
1484 endif
1485
1486
1487 gtk = not_found
1488 gtkx11 = not_found
1489 vte = not_found
1490 have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1491
1492 if not get_option('gtk').auto() or have_system
1493   gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1494                    method: 'pkg-config',
1495                    required: get_option('gtk'))
1496   if gtk.found()
1497     gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1498                         method: 'pkg-config',
1499                         required: false)
1500     gtk = declare_dependency(dependencies: [gtk, gtkx11],
1501                              version: gtk.version())
1502
1503     if not get_option('vte').auto() or have_system
1504       vte = dependency('vte-2.91',
1505                        method: 'pkg-config',
1506                        required: get_option('vte'))
1507     endif
1508   elif have_gtk_clipboard
1509     error('GTK clipboard requested, but GTK not found')
1510   endif
1511 endif
1512
1513 x11 = not_found
1514 if gtkx11.found()
1515   x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
1516 endif
1517 png = not_found
1518 if get_option('png').allowed() and have_system
1519    png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1520                     method: 'pkg-config')
1521 endif
1522 vnc = not_found
1523 jpeg = not_found
1524 sasl = not_found
1525 if get_option('vnc').allowed() and have_system
1526   vnc = declare_dependency() # dummy dependency
1527   jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1528                     method: 'pkg-config')
1529   sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1530                          required: get_option('vnc_sasl'))
1531   if sasl.found()
1532     sasl = declare_dependency(dependencies: sasl,
1533                               compile_args: '-DSTRUCT_IOVEC_DEFINED')
1534   endif
1535 endif
1536
1537 pam = not_found
1538 if not get_option('auth_pam').auto() or have_system
1539   pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1540                         required: get_option('auth_pam'))
1541 endif
1542 if pam.found() and not cc.links('''
1543    #include <stddef.h>
1544    #include <security/pam_appl.h>
1545    int main(void) {
1546      const char *service_name = "qemu";
1547      const char *user = "frank";
1548      const struct pam_conv pam_conv = { 0 };
1549      pam_handle_t *pamh = NULL;
1550      pam_start(service_name, user, &pam_conv, &pamh);
1551      return 0;
1552    }''', dependencies: pam)
1553   pam = not_found
1554   if get_option('auth_pam').enabled()
1555     error('could not link libpam')
1556   else
1557     warning('could not link libpam, disabling')
1558   endif
1559 endif
1560
1561 snappy = not_found
1562 if not get_option('snappy').auto() or have_system
1563   snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1564                            required: get_option('snappy'))
1565 endif
1566 if snappy.found() and not linker.links('''
1567    #include <snappy-c.h>
1568    int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1569   snappy = not_found
1570   if get_option('snappy').enabled()
1571     error('could not link libsnappy')
1572   else
1573     warning('could not link libsnappy, disabling')
1574   endif
1575 endif
1576
1577 lzo = not_found
1578 if not get_option('lzo').auto() or have_system
1579   lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1580                         required: get_option('lzo'))
1581 endif
1582 if lzo.found() and not cc.links('''
1583    #include <lzo/lzo1x.h>
1584    int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1585   lzo = not_found
1586   if get_option('lzo').enabled()
1587     error('could not link liblzo2')
1588   else
1589     warning('could not link liblzo2, disabling')
1590   endif
1591 endif
1592
1593 numa = not_found
1594 if not get_option('numa').auto() or have_system or have_tools
1595   numa = cc.find_library('numa', has_headers: ['numa.h'],
1596                               required: get_option('numa'))
1597 endif
1598 if numa.found() and not cc.links('''
1599    #include <numa.h>
1600    int main(void) { return numa_available(); }
1601    ''', dependencies: numa)
1602   numa = not_found
1603   if get_option('numa').enabled()
1604     error('could not link numa')
1605   else
1606     warning('could not link numa, disabling')
1607   endif
1608 endif
1609
1610 rdma = not_found
1611 if not get_option('rdma').auto() or have_system
1612   libumad = cc.find_library('ibumad', required: get_option('rdma'))
1613   rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1614                                required: get_option('rdma')),
1615                cc.find_library('ibverbs', required: get_option('rdma')),
1616                libumad]
1617   rdma = declare_dependency(dependencies: rdma_libs)
1618   foreach lib: rdma_libs
1619     if not lib.found()
1620       rdma = not_found
1621     endif
1622   endforeach
1623 endif
1624
1625 xen = not_found
1626 if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1627   xencontrol = dependency('xencontrol', required: false,
1628                           method: 'pkg-config')
1629   if xencontrol.found()
1630     xen_pc = declare_dependency(version: xencontrol.version(),
1631       dependencies: [
1632         xencontrol,
1633         # disabler: true makes xen_pc.found() return false if any is not found
1634         dependency('xenstore', required: false,
1635                    method: 'pkg-config',
1636                    disabler: true),
1637         dependency('xenforeignmemory', required: false,
1638                    method: 'pkg-config',
1639                    disabler: true),
1640         dependency('xengnttab', required: false,
1641                    method: 'pkg-config',
1642                    disabler: true),
1643         dependency('xenevtchn', required: false,
1644                    method: 'pkg-config',
1645                    disabler: true),
1646         dependency('xendevicemodel', required: false,
1647                    method: 'pkg-config',
1648                    disabler: true),
1649         # optional, no "disabler: true"
1650         dependency('xentoolcore', required: false,
1651                    method: 'pkg-config')])
1652     if xen_pc.found()
1653       xen = xen_pc
1654     endif
1655   endif
1656   if not xen.found()
1657     xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1', '4.6.0', '4.5.0', '4.2.0' ]
1658     xen_libs = {
1659       '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1660       '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1661       '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1662       '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1663       '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1664       '4.6.0': [ 'xenstore', 'xenctrl' ],
1665       '4.5.0': [ 'xenstore', 'xenctrl' ],
1666       '4.2.0': [ 'xenstore', 'xenctrl' ],
1667     }
1668     xen_deps = {}
1669     foreach ver: xen_tests
1670       # cache the various library tests to avoid polluting the logs
1671       xen_test_deps = []
1672       foreach l: xen_libs[ver]
1673         if l not in xen_deps
1674           xen_deps += { l: cc.find_library(l, required: false) }
1675         endif
1676         xen_test_deps += xen_deps[l]
1677       endforeach
1678
1679       # Use -D to pick just one of the test programs in scripts/xen-detect.c
1680       xen_version = ver.split('.')
1681       xen_ctrl_version = xen_version[0] + \
1682         ('0' + xen_version[1]).substring(-2) + \
1683         ('0' + xen_version[2]).substring(-2)
1684       if cc.links(files('scripts/xen-detect.c'),
1685                   args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1686                   dependencies: xen_test_deps)
1687         xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1688         break
1689       endif
1690     endforeach
1691   endif
1692   if xen.found()
1693     accelerators += 'CONFIG_XEN'
1694   elif get_option('xen').enabled()
1695     error('could not compile and link Xen test program')
1696   endif
1697 endif
1698 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1699   .require(xen.found(),
1700            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1701   .require(targetos == 'linux',
1702            error_message: 'Xen PCI passthrough not available on this platform') \
1703   .allowed()
1704
1705
1706 cacard = not_found
1707 if not get_option('smartcard').auto() or have_system
1708   cacard = dependency('libcacard', required: get_option('smartcard'),
1709                       version: '>=2.5.1', method: 'pkg-config')
1710 endif
1711 u2f = not_found
1712 if have_system
1713   u2f = dependency('u2f-emu', required: get_option('u2f'),
1714                    method: 'pkg-config')
1715 endif
1716 canokey = not_found
1717 if have_system
1718   canokey = dependency('canokey-qemu', required: get_option('canokey'),
1719                    method: 'pkg-config')
1720 endif
1721 usbredir = not_found
1722 if not get_option('usb_redir').auto() or have_system
1723   usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1724                         version: '>=0.6', method: 'pkg-config')
1725 endif
1726 libusb = not_found
1727 if not get_option('libusb').auto() or have_system
1728   libusb = dependency('libusb-1.0', required: get_option('libusb'),
1729                       version: '>=1.0.13', method: 'pkg-config')
1730 endif
1731
1732 libpmem = not_found
1733 if not get_option('libpmem').auto() or have_system
1734   libpmem = dependency('libpmem', required: get_option('libpmem'),
1735                        method: 'pkg-config')
1736 endif
1737 libdaxctl = not_found
1738 if not get_option('libdaxctl').auto() or have_system
1739   libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1740                          version: '>=57', method: 'pkg-config')
1741 endif
1742 tasn1 = not_found
1743 if gnutls.found()
1744   tasn1 = dependency('libtasn1',
1745                      method: 'pkg-config')
1746 endif
1747 keyutils = dependency('libkeyutils', required: false,
1748                       method: 'pkg-config')
1749
1750 has_gettid = cc.has_function('gettid')
1751
1752 # libselinux
1753 selinux = dependency('libselinux',
1754                      required: get_option('selinux'),
1755                      method: 'pkg-config')
1756
1757 # Malloc tests
1758
1759 malloc = []
1760 if get_option('malloc') == 'system'
1761   has_malloc_trim = \
1762     get_option('malloc_trim').allowed() and \
1763     cc.links('''#include <malloc.h>
1764                 int main(void) { malloc_trim(0); return 0; }''')
1765 else
1766   has_malloc_trim = false
1767   malloc = cc.find_library(get_option('malloc'), required: true)
1768 endif
1769 if not has_malloc_trim and get_option('malloc_trim').enabled()
1770   if get_option('malloc') == 'system'
1771     error('malloc_trim not available on this platform.')
1772   else
1773     error('malloc_trim not available with non-libc memory allocator')
1774   endif
1775 endif
1776
1777 # Check whether the glibc provides statx()
1778
1779 gnu_source_prefix = '''
1780   #ifndef _GNU_SOURCE
1781   #define _GNU_SOURCE
1782   #endif
1783 '''
1784 statx_test = gnu_source_prefix + '''
1785   #include <sys/stat.h>
1786   int main(void) {
1787     struct statx statxbuf;
1788     statx(0, "", 0, STATX_BASIC_STATS, &statxbuf);
1789     return 0;
1790   }'''
1791
1792 has_statx = cc.links(statx_test)
1793
1794 # Check whether statx() provides mount ID information
1795
1796 statx_mnt_id_test = gnu_source_prefix + '''
1797   #include <sys/stat.h>
1798   int main(void) {
1799     struct statx statxbuf;
1800     statx(0, "", 0, STATX_BASIC_STATS | STATX_MNT_ID, &statxbuf);
1801     return statxbuf.stx_mnt_id;
1802   }'''
1803
1804 has_statx_mnt_id = cc.links(statx_mnt_id_test)
1805
1806 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1807   .require(targetos == 'linux',
1808            error_message: 'vhost_user_blk_server requires linux') \
1809   .require(have_vhost_user,
1810            error_message: 'vhost_user_blk_server requires vhost-user support') \
1811   .disable_auto_if(not have_tools and not have_system) \
1812   .allowed()
1813
1814 if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1815   error('Cannot enable fuse-lseek while fuse is disabled')
1816 endif
1817
1818 fuse = dependency('fuse3', required: get_option('fuse'),
1819                   version: '>=3.1', method: 'pkg-config')
1820
1821 fuse_lseek = not_found
1822 if get_option('fuse_lseek').allowed()
1823   if fuse.version().version_compare('>=3.8')
1824     # Dummy dependency
1825     fuse_lseek = declare_dependency()
1826   elif get_option('fuse_lseek').enabled()
1827     if fuse.found()
1828       error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1829     else
1830       error('fuse-lseek requires libfuse, which was not found')
1831     endif
1832   endif
1833 endif
1834
1835 have_libvduse = (targetos == 'linux')
1836 if get_option('libvduse').enabled()
1837     if targetos != 'linux'
1838         error('libvduse requires linux')
1839     endif
1840 elif get_option('libvduse').disabled()
1841     have_libvduse = false
1842 endif
1843
1844 have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1845 if get_option('vduse_blk_export').enabled()
1846     if targetos != 'linux'
1847         error('vduse_blk_export requires linux')
1848     elif not have_libvduse
1849         error('vduse_blk_export requires libvduse support')
1850     endif
1851 elif get_option('vduse_blk_export').disabled()
1852     have_vduse_blk_export = false
1853 endif
1854
1855 # libbpf
1856 libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1857 if libbpf.found() and not cc.links('''
1858    #include <bpf/libbpf.h>
1859    int main(void)
1860    {
1861      bpf_object__destroy_skeleton(NULL);
1862      return 0;
1863    }''', dependencies: libbpf)
1864   libbpf = not_found
1865   if get_option('bpf').enabled()
1866     error('libbpf skeleton test failed')
1867   else
1868     warning('libbpf skeleton test failed, disabling')
1869   endif
1870 endif
1871
1872 # libdw
1873 libdw = not_found
1874 if not get_option('libdw').auto() or \
1875         (not get_option('prefer_static') and (have_system or have_user))
1876     libdw = dependency('libdw',
1877                        method: 'pkg-config',
1878                        required: get_option('libdw'))
1879 endif
1880
1881 #################
1882 # config-host.h #
1883 #################
1884
1885 audio_drivers_selected = []
1886 if have_system
1887   audio_drivers_available = {
1888     'alsa': alsa.found(),
1889     'coreaudio': coreaudio.found(),
1890     'dsound': dsound.found(),
1891     'jack': jack.found(),
1892     'oss': oss.found(),
1893     'pa': pulse.found(),
1894     'pipewire': pipewire.found(),
1895     'sdl': sdl.found(),
1896     'sndio': sndio.found(),
1897   }
1898   foreach k, v: audio_drivers_available
1899     config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1900   endforeach
1901
1902   # Default to native drivers first, OSS second, SDL third
1903   audio_drivers_priority = \
1904     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1905     (targetos == 'linux' ? [] : [ 'sdl' ])
1906   audio_drivers_default = []
1907   foreach k: audio_drivers_priority
1908     if audio_drivers_available[k]
1909       audio_drivers_default += k
1910     endif
1911   endforeach
1912
1913   foreach k: get_option('audio_drv_list')
1914     if k == 'default'
1915       audio_drivers_selected += audio_drivers_default
1916     elif not audio_drivers_available[k]
1917       error('Audio driver "@0@" not available.'.format(k))
1918     else
1919       audio_drivers_selected += k
1920     endif
1921   endforeach
1922 endif
1923 config_host_data.set('CONFIG_AUDIO_DRIVERS',
1924                      '"' + '", "'.join(audio_drivers_selected) + '", ')
1925
1926 if get_option('cfi')
1927   cfi_flags=[]
1928   # Check for dependency on LTO
1929   if not get_option('b_lto')
1930     error('Selected Control-Flow Integrity but LTO is disabled')
1931   endif
1932   if enable_modules
1933     error('Selected Control-Flow Integrity is not compatible with modules')
1934   endif
1935   # Check for cfi flags. CFI requires LTO so we can't use
1936   # get_supported_arguments, but need a more complex "compiles" which allows
1937   # custom arguments
1938   if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1939                  args: ['-flto', '-fsanitize=cfi-icall'] )
1940     cfi_flags += '-fsanitize=cfi-icall'
1941   else
1942     error('-fsanitize=cfi-icall is not supported by the compiler')
1943   endif
1944   if cc.compiles('int main () { return 0; }',
1945                  name: '-fsanitize-cfi-icall-generalize-pointers',
1946                  args: ['-flto', '-fsanitize=cfi-icall',
1947                         '-fsanitize-cfi-icall-generalize-pointers'] )
1948     cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1949   else
1950     error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1951   endif
1952   if get_option('cfi_debug')
1953     if cc.compiles('int main () { return 0; }',
1954                    name: '-fno-sanitize-trap=cfi-icall',
1955                    args: ['-flto', '-fsanitize=cfi-icall',
1956                           '-fno-sanitize-trap=cfi-icall'] )
1957       cfi_flags += '-fno-sanitize-trap=cfi-icall'
1958     else
1959       error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1960     endif
1961   endif
1962   add_global_arguments(cfi_flags, native: false, language: all_languages)
1963   add_global_link_arguments(cfi_flags, native: false, language: all_languages)
1964 endif
1965
1966 have_host_block_device = (targetos != 'darwin' or
1967     cc.has_header('IOKit/storage/IOMedia.h'))
1968
1969 dbus_display = get_option('dbus_display') \
1970   .require(gio.version().version_compare('>=2.64'),
1971            error_message: '-display dbus requires glib>=2.64') \
1972   .require(gdbus_codegen.found(),
1973            error_message: gdbus_codegen_error.format('-display dbus')) \
1974   .require(targetos != 'windows',
1975            error_message: '-display dbus is not available on Windows') \
1976   .allowed()
1977
1978 have_virtfs = get_option('virtfs') \
1979     .require(targetos == 'linux' or targetos == 'darwin',
1980              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
1981     .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
1982              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
1983     .require(targetos == 'darwin' or libattr.found(),
1984              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
1985     .disable_auto_if(not have_tools and not have_system) \
1986     .allowed()
1987
1988 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
1989     .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
1990     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
1991     .disable_auto_if(not have_tools) \
1992     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
1993     .allowed()
1994
1995 if get_option('block_drv_ro_whitelist') == ''
1996   config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
1997 else
1998   config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
1999         '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
2000 endif
2001 if get_option('block_drv_rw_whitelist') == ''
2002   config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
2003 else
2004   config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
2005         '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
2006 endif
2007
2008 foreach k : get_option('trace_backends')
2009   config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
2010 endforeach
2011 config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
2012 config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
2013 if iasl.found()
2014   config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
2015 endif
2016 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
2017 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
2018 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
2019 config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
2020 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
2021
2022 qemu_firmwarepath = ''
2023 foreach k : get_option('qemu_firmwarepath')
2024   qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
2025 endforeach
2026 config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
2027
2028 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
2029 config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
2030 config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
2031 config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
2032 config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
2033 config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
2034
2035 if enable_modules
2036   config_host_data.set('CONFIG_STAMP', run_command(
2037       meson.current_source_dir() / 'scripts/qemu-stamp.py',
2038       meson.project_version(), get_option('pkgversion'), '--',
2039       meson.current_source_dir() / 'configure',
2040       capture: true, check: true).stdout().strip())
2041 endif
2042
2043 have_slirp_smbd = get_option('slirp_smbd') \
2044   .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
2045   .allowed()
2046 if have_slirp_smbd
2047   smbd_path = get_option('smbd')
2048   if smbd_path == ''
2049     smbd_path = (targetos == 'solaris' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
2050   endif
2051   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
2052 endif
2053
2054 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
2055
2056 if get_option('module_upgrades') and not enable_modules
2057   error('Cannot enable module-upgrades as modules are not enabled')
2058 endif
2059 config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
2060
2061 config_host_data.set('CONFIG_ATTR', libattr.found())
2062 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
2063 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
2064 config_host_data.set('CONFIG_COCOA', cocoa.found())
2065 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
2066 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
2067 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
2068 config_host_data.set('CONFIG_LZO', lzo.found())
2069 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
2070 config_host_data.set('CONFIG_MPATH_NEW_API', mpathpersist_new_api)
2071 config_host_data.set('CONFIG_BLKIO', blkio.found())
2072 config_host_data.set('CONFIG_CURL', curl.found())
2073 config_host_data.set('CONFIG_CURSES', curses.found())
2074 config_host_data.set('CONFIG_GBM', gbm.found())
2075 config_host_data.set('CONFIG_GIO', gio.found())
2076 config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
2077 if glusterfs.found()
2078   config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
2079   config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
2080   config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
2081   config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
2082   config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
2083   config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
2084 endif
2085 config_host_data.set('CONFIG_GTK', gtk.found())
2086 config_host_data.set('CONFIG_VTE', vte.found())
2087 config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
2088 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
2089 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
2090 config_host_data.set('CONFIG_EBPF', libbpf.found())
2091 config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
2092 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
2093 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
2094 config_host_data.set('CONFIG_LIBSSH', libssh.found())
2095 config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
2096 config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
2097 config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
2098 config_host_data.set('CONFIG_MODULES', enable_modules)
2099 config_host_data.set('CONFIG_NUMA', numa.found())
2100 if numa.found()
2101   config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
2102                        cc.has_function('numa_has_preferred_many',
2103                                        dependencies: numa))
2104 endif
2105 config_host_data.set('CONFIG_OPENGL', opengl.found())
2106 config_host_data.set('CONFIG_PROFILER', get_option('profiler'))
2107 config_host_data.set('CONFIG_RBD', rbd.found())
2108 config_host_data.set('CONFIG_RDMA', rdma.found())
2109 config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
2110 config_host_data.set('CONFIG_SDL', sdl.found())
2111 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
2112 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
2113 if seccomp.found()
2114   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
2115 endif
2116 config_host_data.set('CONFIG_SNAPPY', snappy.found())
2117 config_host_data.set('CONFIG_TPM', have_tpm)
2118 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
2119 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
2120 config_host_data.set('CONFIG_VDE', vde.found())
2121 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
2122 config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
2123 config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
2124 config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
2125 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
2126 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
2127 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
2128 config_host_data.set('CONFIG_VMNET', vmnet.found())
2129 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
2130 config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
2131 config_host_data.set('CONFIG_PNG', png.found())
2132 config_host_data.set('CONFIG_VNC', vnc.found())
2133 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
2134 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
2135 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
2136 config_host_data.set('CONFIG_VTE', vte.found())
2137 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
2138 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
2139 config_host_data.set('CONFIG_GETTID', has_gettid)
2140 config_host_data.set('CONFIG_GNUTLS', gnutls.found())
2141 config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
2142 config_host_data.set('CONFIG_TASN1', tasn1.found())
2143 config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
2144 config_host_data.set('CONFIG_NETTLE', nettle.found())
2145 config_host_data.set('CONFIG_HOGWEED', hogweed.found())
2146 config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
2147 config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
2148 config_host_data.set('CONFIG_STATX', has_statx)
2149 config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
2150 config_host_data.set('CONFIG_ZSTD', zstd.found())
2151 config_host_data.set('CONFIG_FUSE', fuse.found())
2152 config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
2153 config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
2154 if spice_protocol.found()
2155 config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
2156 config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
2157 config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
2158 endif
2159 config_host_data.set('CONFIG_SPICE', spice.found())
2160 config_host_data.set('CONFIG_X11', x11.found())
2161 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
2162 config_host_data.set('CONFIG_CFI', get_option('cfi'))
2163 config_host_data.set('CONFIG_SELINUX', selinux.found())
2164 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
2165 config_host_data.set('CONFIG_LIBDW', libdw.found())
2166 if xen.found()
2167   # protect from xen.version() having less than three components
2168   xen_version = xen.version().split('.') + ['0', '0']
2169   xen_ctrl_version = xen_version[0] + \
2170     ('0' + xen_version[1]).substring(-2) + \
2171     ('0' + xen_version[2]).substring(-2)
2172   config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
2173 endif
2174 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
2175 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
2176 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
2177 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
2178
2179 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
2180 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
2181
2182 have_coroutine_pool = get_option('coroutine_pool')
2183 if get_option('debug_stack_usage') and have_coroutine_pool
2184   message('Disabling coroutine pool to measure stack usage')
2185   have_coroutine_pool = false
2186 endif
2187 config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
2188 config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
2189 config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
2190 config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
2191 config_host_data.set('CONFIG_GPROF', get_option('gprof'))
2192 config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
2193 config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
2194 config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
2195
2196 # has_header
2197 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
2198 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
2199 config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
2200 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
2201 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
2202 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
2203 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
2204 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
2205 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
2206 if targetos == 'windows'
2207   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
2208 endif
2209
2210 # has_function
2211 config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
2212 config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
2213 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
2214 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
2215 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
2216 config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
2217 # Note that we need to specify prefix: here to avoid incorrectly
2218 # thinking that Windows has posix_memalign()
2219 config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
2220 config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
2221 config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
2222 config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
2223 config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
2224 config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
2225 config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
2226 config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
2227 config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
2228 config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
2229 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
2230 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
2231 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
2232 config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
2233 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
2234 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2235 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2236 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2237 if rbd.found()
2238   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2239                        cc.has_function('rbd_namespace_exists',
2240                                        dependencies: rbd,
2241                                        prefix: '#include <rbd/librbd.h>'))
2242 endif
2243 if rdma.found()
2244   config_host_data.set('HAVE_IBV_ADVISE_MR',
2245                        cc.has_function('ibv_advise_mr',
2246                                        dependencies: rdma,
2247                                        prefix: '#include <infiniband/verbs.h>'))
2248 endif
2249
2250 have_asan_fiber = false
2251 if get_option('sanitizers') and \
2252    not cc.has_function('__sanitizer_start_switch_fiber',
2253                          args: '-fsanitize=address',
2254                          prefix: '#include <sanitizer/asan_interface.h>')
2255   warning('Missing ASAN due to missing fiber annotation interface')
2256   warning('Without code annotation, the report may be inferior.')
2257 else
2258   have_asan_fiber = true
2259 endif
2260 config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
2261
2262 # has_header_symbol
2263 config_host_data.set('CONFIG_BLKZONED',
2264                      cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
2265 config_host_data.set('CONFIG_EPOLL_CREATE1',
2266                      cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2267 config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2268                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2269                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2270 config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2271                      cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2272 config_host_data.set('CONFIG_FIEMAP',
2273                      cc.has_header('linux/fiemap.h') and
2274                      cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2275 config_host_data.set('CONFIG_GETRANDOM',
2276                      cc.has_function('getrandom') and
2277                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2278 config_host_data.set('CONFIG_INOTIFY',
2279                      cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2280 config_host_data.set('CONFIG_INOTIFY1',
2281                      cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2282 config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2283                      cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2284 config_host_data.set('CONFIG_RTNETLINK',
2285                      cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2286 config_host_data.set('CONFIG_SYSMACROS',
2287                      cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2288 config_host_data.set('HAVE_OPTRESET',
2289                      cc.has_header_symbol('getopt.h', 'optreset'))
2290 config_host_data.set('HAVE_IPPROTO_MPTCP',
2291                      cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2292
2293 # has_member
2294 config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2295                      cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2296                                    prefix: '#include <signal.h>'))
2297 config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2298                      cc.has_member('struct stat', 'st_atim',
2299                                    prefix: '#include <sys/stat.h>'))
2300 config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
2301                      cc.has_member('struct blk_zone', 'capacity',
2302                                    prefix: '#include <linux/blkzoned.h>'))
2303
2304 # has_type
2305 config_host_data.set('CONFIG_IOVEC',
2306                      cc.has_type('struct iovec',
2307                                  prefix: '#include <sys/uio.h>'))
2308 config_host_data.set('HAVE_UTMPX',
2309                      cc.has_type('struct utmpx',
2310                                  prefix: '#include <utmpx.h>'))
2311
2312 config_host_data.set('CONFIG_EVENTFD', cc.links('''
2313   #include <sys/eventfd.h>
2314   int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2315 config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2316   #include <unistd.h>
2317   int main(void) {
2318   #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2319   return fdatasync(0);
2320   #else
2321   #error Not supported
2322   #endif
2323   }'''))
2324
2325 has_madvise = cc.links(gnu_source_prefix + '''
2326   #include <sys/types.h>
2327   #include <sys/mman.h>
2328   #include <stddef.h>
2329   int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2330 missing_madvise_proto = false
2331 if has_madvise
2332   # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2333   # but forget to prototype it. In this case, has_madvise will be true (the
2334   # test program links despite a compile warning). To detect the
2335   # missing-prototype case, we try again with a definitely-bogus prototype.
2336   # This will only compile if the system headers don't provide the prototype;
2337   # otherwise the conflicting prototypes will cause a compiler error.
2338   missing_madvise_proto = cc.links(gnu_source_prefix + '''
2339     #include <sys/types.h>
2340     #include <sys/mman.h>
2341     #include <stddef.h>
2342     extern int madvise(int);
2343     int main(void) { return madvise(0); }''')
2344 endif
2345 config_host_data.set('CONFIG_MADVISE', has_madvise)
2346 config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2347
2348 config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2349   #include <sys/mman.h>
2350   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2351 config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2352   #include <fcntl.h>
2353   #if !defined(AT_EMPTY_PATH)
2354   # error missing definition
2355   #else
2356   int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2357   #endif'''))
2358 config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2359   #include <sys/mman.h>
2360   #include <stddef.h>
2361   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2362
2363 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2364   #include <pthread.h>
2365
2366   static void *f(void *p) { return NULL; }
2367   int main(void)
2368   {
2369     pthread_t thread;
2370     pthread_create(&thread, 0, f, 0);
2371     pthread_setname_np(thread, "QEMU");
2372     return 0;
2373   }''', dependencies: threads))
2374 config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2375   #include <pthread.h>
2376
2377   static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2378   int main(void)
2379   {
2380     pthread_t thread;
2381     pthread_create(&thread, 0, f, 0);
2382     return 0;
2383   }''', dependencies: threads))
2384 config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
2385   #include <pthread.h>
2386   #include <pthread_np.h>
2387
2388   static void *f(void *p) { return NULL; }
2389   int main(void)
2390   {
2391     pthread_t thread;
2392     pthread_create(&thread, 0, f, 0);
2393     pthread_set_name_np(thread, "QEMU");
2394     return 0;
2395   }''', dependencies: threads))
2396 config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2397   #include <pthread.h>
2398   #include <time.h>
2399
2400   int main(void)
2401   {
2402     pthread_condattr_t attr
2403     pthread_condattr_init(&attr);
2404     pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2405     return 0;
2406   }''', dependencies: threads))
2407 config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2408   #include <pthread.h>
2409
2410   static void *f(void *p) { return NULL; }
2411   int main(void)
2412   {
2413     int setsize = CPU_ALLOC_SIZE(64);
2414     pthread_t thread;
2415     cpu_set_t *cpuset;
2416     pthread_create(&thread, 0, f, 0);
2417     cpuset = CPU_ALLOC(64);
2418     CPU_ZERO_S(setsize, cpuset);
2419     pthread_setaffinity_np(thread, setsize, cpuset);
2420     pthread_getaffinity_np(thread, setsize, cpuset);
2421     CPU_FREE(cpuset);
2422     return 0;
2423   }''', dependencies: threads))
2424 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2425   #include <sys/signalfd.h>
2426   #include <stddef.h>
2427   int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2428 config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2429   #include <unistd.h>
2430   #include <fcntl.h>
2431   #include <limits.h>
2432
2433   int main(void)
2434   {
2435     int len, fd = 0;
2436     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2437     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2438     return 0;
2439   }'''))
2440
2441 config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2442   #include <sys/mman.h>
2443   int main(void) {
2444     return mlockall(MCL_FUTURE);
2445   }'''))
2446
2447 have_l2tpv3 = false
2448 if get_option('l2tpv3').allowed() and have_system
2449   have_l2tpv3 = cc.has_type('struct mmsghdr',
2450     prefix: gnu_source_prefix + '''
2451       #include <sys/socket.h>
2452       #include <linux/ip.h>''')
2453 endif
2454 config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2455
2456 have_netmap = false
2457 if get_option('netmap').allowed() and have_system
2458   have_netmap = cc.compiles('''
2459     #include <inttypes.h>
2460     #include <net/if.h>
2461     #include <net/netmap.h>
2462     #include <net/netmap_user.h>
2463     #if (NETMAP_API < 11) || (NETMAP_API > 15)
2464     #error
2465     #endif
2466     int main(void) { return 0; }''')
2467   if not have_netmap and get_option('netmap').enabled()
2468     error('Netmap headers not available')
2469   endif
2470 endif
2471 config_host_data.set('CONFIG_NETMAP', have_netmap)
2472
2473 # Work around a system header bug with some kernel/XFS header
2474 # versions where they both try to define 'struct fsxattr':
2475 # xfs headers will not try to redefine structs from linux headers
2476 # if this macro is set.
2477 config_host_data.set('HAVE_FSXATTR', cc.links('''
2478   #include <linux/fs.h>
2479   struct fsxattr foo;
2480   int main(void) {
2481     return 0;
2482   }'''))
2483
2484 # Some versions of Mac OS X incorrectly define SIZE_MAX
2485 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2486     #include <stdint.h>
2487     #include <stdio.h>
2488     int main(void) {
2489         return printf("%zu", SIZE_MAX);
2490     }''', args: ['-Werror']))
2491
2492 # See if 64-bit atomic operations are supported.
2493 # Note that without __atomic builtins, we can only
2494 # assume atomic loads/stores max at pointer size.
2495 config_host_data.set('CONFIG_ATOMIC64', cc.links('''
2496   #include <stdint.h>
2497   int main(void)
2498   {
2499     uint64_t x = 0, y = 0;
2500     y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2501     __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2502     __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2503     __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2504     __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2505     return 0;
2506   }'''))
2507
2508 has_int128 = cc.links('''
2509   __int128_t a;
2510   __uint128_t b;
2511   int main (void) {
2512     a = a + b;
2513     b = a * b;
2514     a = a * a;
2515     return 0;
2516   }''')
2517
2518 config_host_data.set('CONFIG_INT128', has_int128)
2519
2520 if has_int128
2521   # "do we have 128-bit atomics which are handled inline and specifically not
2522   # via libatomic". The reason we can't use libatomic is documented in the
2523   # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2524   # We only care about these operations on 16-byte aligned pointers, so
2525   # force 16-byte alignment of the pointer, which may be greater than
2526   # __alignof(unsigned __int128) for the host.
2527   atomic_test_128 = '''
2528     int main(int ac, char **av) {
2529       unsigned __int128 *p = __builtin_assume_aligned(av[ac - 1], sizeof(16));
2530       p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
2531       __atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
2532       __atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2533       return 0;
2534     }'''
2535   has_atomic128 = cc.links(atomic_test_128)
2536
2537   config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2538
2539   if not has_atomic128
2540     # Even with __builtin_assume_aligned, the above test may have failed
2541     # without optimization enabled.  Try again with optimizations locally
2542     # enabled for the function.  See
2543     #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
2544     has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
2545     config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
2546
2547     if not has_atomic128_opt
2548       config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
2549         int main(void)
2550         {
2551           unsigned __int128 x = 0, y = 0;
2552           __sync_val_compare_and_swap_16(&x, y, x);
2553           return 0;
2554         }
2555       '''))
2556     endif
2557   endif
2558 endif
2559
2560 config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2561   #include <sys/auxv.h>
2562   int main(void) {
2563     return getauxval(AT_HWCAP) == 0;
2564   }'''))
2565
2566 config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2567   #include <linux/usbdevice_fs.h>
2568
2569   #ifndef USBDEVFS_GET_CAPABILITIES
2570   #error "USBDEVFS_GET_CAPABILITIES undefined"
2571   #endif
2572
2573   #ifndef USBDEVFS_DISCONNECT_CLAIM
2574   #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2575   #endif
2576
2577   int main(void) { return 0; }'''))
2578
2579 have_keyring = get_option('keyring') \
2580   .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2581   .require(cc.compiles('''
2582     #include <errno.h>
2583     #include <asm/unistd.h>
2584     #include <linux/keyctl.h>
2585     #include <sys/syscall.h>
2586     #include <unistd.h>
2587     int main(void) {
2588         return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2589     }'''), error_message: 'keyctl syscall not available on this system').allowed()
2590 config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2591
2592 have_cpuid_h = cc.links('''
2593   #include <cpuid.h>
2594   int main(void) {
2595     unsigned a, b, c, d;
2596     unsigned max = __get_cpuid_max(0, 0);
2597
2598     if (max >= 1) {
2599         __cpuid(1, a, b, c, d);
2600     }
2601
2602     if (max >= 7) {
2603         __cpuid_count(7, 0, a, b, c, d);
2604     }
2605
2606     return 0;
2607   }''')
2608 config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2609
2610 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2611   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2612   .require(cc.links('''
2613     #include <cpuid.h>
2614     #include <immintrin.h>
2615     static int __attribute__((target("avx2"))) bar(void *a) {
2616       __m256i x = *(__m256i *)a;
2617       return _mm256_testz_si256(x, x);
2618     }
2619     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2620   '''), error_message: 'AVX2 not available').allowed())
2621
2622 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2623   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2624   .require(cc.links('''
2625     #include <cpuid.h>
2626     #include <immintrin.h>
2627     static int __attribute__((target("avx512f"))) bar(void *a) {
2628       __m512i x = *(__m512i *)a;
2629       return _mm512_test_epi64_mask(x, x);
2630     }
2631     int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2632   '''), error_message: 'AVX512F not available').allowed())
2633
2634 config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
2635   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
2636   .require(cc.links('''
2637     #include <cpuid.h>
2638     #include <immintrin.h>
2639     static int __attribute__((target("avx512bw"))) bar(void *a) {
2640       __m512i *x = a;
2641       __m512i res= _mm512_abs_epi8(*x);
2642       return res[1];
2643     }
2644     int main(int argc, char *argv[]) { return bar(argv[0]); }
2645   '''), error_message: 'AVX512BW not available').allowed())
2646
2647 have_pvrdma = get_option('pvrdma') \
2648   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2649   .require(cc.compiles(gnu_source_prefix + '''
2650     #include <sys/mman.h>
2651     int main(void)
2652     {
2653       char buf = 0;
2654       void *addr = &buf;
2655       addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2656
2657       return 0;
2658     }'''), error_message: 'PVRDMA requires mremap').allowed()
2659
2660 if have_pvrdma
2661   config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2662     #include <infiniband/verbs.h>
2663     int main(void)
2664     {
2665       struct ibv_mr *mr;
2666       struct ibv_pd *pd = NULL;
2667       size_t length = 10;
2668       uint64_t iova = 0;
2669       int access = 0;
2670       void *addr = NULL;
2671
2672       mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2673       ibv_dereg_mr(mr);
2674       return 0;
2675     }'''))
2676 endif
2677
2678 if get_option('membarrier').disabled()
2679   have_membarrier = false
2680 elif targetos == 'windows'
2681   have_membarrier = true
2682 elif targetos == 'linux'
2683   have_membarrier = cc.compiles('''
2684     #include <linux/membarrier.h>
2685     #include <sys/syscall.h>
2686     #include <unistd.h>
2687     #include <stdlib.h>
2688     int main(void) {
2689         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2690         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2691         exit(0);
2692     }''')
2693 endif
2694 config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2695   .require(have_membarrier, error_message: 'membarrier system call not available') \
2696   .allowed())
2697
2698 have_afalg = get_option('crypto_afalg') \
2699   .require(cc.compiles(gnu_source_prefix + '''
2700     #include <errno.h>
2701     #include <sys/types.h>
2702     #include <sys/socket.h>
2703     #include <linux/if_alg.h>
2704     int main(void) {
2705       int sock;
2706       sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2707       return sock;
2708     }
2709   '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2710 config_host_data.set('CONFIG_AF_ALG', have_afalg)
2711
2712 config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2713   'linux/vm_sockets.h', 'AF_VSOCK',
2714   prefix: '#include <sys/socket.h>',
2715 ))
2716
2717 have_vss = false
2718 have_vss_sdk = false # old xp/2003 SDK
2719 if targetos == 'windows' and link_language == 'cpp'
2720   have_vss = cxx.compiles('''
2721     #define __MIDL_user_allocate_free_DEFINED__
2722     #include <vss.h>
2723     int main(void) { return VSS_CTX_BACKUP; }''')
2724   have_vss_sdk = cxx.has_header('vscoordint.h')
2725 endif
2726 config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2727
2728 foreach k, v: config_host
2729   if k.startswith('CONFIG_')
2730     config_host_data.set(k, v == 'y' ? 1 : v)
2731   endif
2732 endforeach
2733
2734 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
2735 # This was fixed for v6.0.0 with commit b48e3ac8969d.
2736 if targetos == 'windows'
2737   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2738     #include <stdio.h>
2739     int main(void) {
2740       _lock_file(NULL);
2741       _unlock_file(NULL);
2742       return 0;
2743     }''', name: '_lock_file and _unlock_file'))
2744 endif
2745
2746 if targetos == 'windows'
2747   mingw_has_setjmp_longjmp = cc.links('''
2748     #include <setjmp.h>
2749     int main(void) {
2750       /*
2751        * These functions are not available in setjmp header, but may be
2752        * available at link time, from libmingwex.a.
2753        */
2754       extern int __mingw_setjmp(jmp_buf);
2755       extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
2756       jmp_buf env;
2757       __mingw_setjmp(env);
2758       __mingw_longjmp(env, 0);
2759     }
2760   ''', name: 'mingw setjmp and longjmp')
2761
2762   if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
2763     error('mingw must provide setjmp/longjmp for windows-arm64')
2764   endif
2765 endif
2766
2767 ########################
2768 # Target configuration #
2769 ########################
2770
2771 minikconf = find_program('scripts/minikconf.py')
2772 config_all = {}
2773 config_all_devices = {}
2774 config_all_disas = {}
2775 config_devices_mak_list = []
2776 config_devices_h = {}
2777 config_target_h = {}
2778 config_target_mak = {}
2779
2780 disassemblers = {
2781   'alpha' : ['CONFIG_ALPHA_DIS'],
2782   'avr' : ['CONFIG_AVR_DIS'],
2783   'cris' : ['CONFIG_CRIS_DIS'],
2784   'hexagon' : ['CONFIG_HEXAGON_DIS'],
2785   'hppa' : ['CONFIG_HPPA_DIS'],
2786   'i386' : ['CONFIG_I386_DIS'],
2787   'x86_64' : ['CONFIG_I386_DIS'],
2788   'm68k' : ['CONFIG_M68K_DIS'],
2789   'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2790   'mips' : ['CONFIG_MIPS_DIS'],
2791   'nios2' : ['CONFIG_NIOS2_DIS'],
2792   'or1k' : ['CONFIG_OPENRISC_DIS'],
2793   'ppc' : ['CONFIG_PPC_DIS'],
2794   'riscv' : ['CONFIG_RISCV_DIS'],
2795   'rx' : ['CONFIG_RX_DIS'],
2796   's390' : ['CONFIG_S390_DIS'],
2797   'sh4' : ['CONFIG_SH4_DIS'],
2798   'sparc' : ['CONFIG_SPARC_DIS'],
2799   'xtensa' : ['CONFIG_XTENSA_DIS'],
2800   'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2801 }
2802
2803 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2804 host_kconfig = \
2805   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2806   (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2807   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2808   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2809   (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2810   (x11.found() ? ['CONFIG_X11=y'] : []) + \
2811   (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2812   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2813   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2814   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2815   ('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
2816   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2817   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2818   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2819
2820 ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2821
2822 default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2823 actual_target_dirs = []
2824 fdt_required = []
2825 foreach target : target_dirs
2826   config_target = { 'TARGET_NAME': target.split('-')[0] }
2827   if target.endswith('linux-user')
2828     if targetos != 'linux'
2829       if default_targets
2830         continue
2831       endif
2832       error('Target @0@ is only available on a Linux host'.format(target))
2833     endif
2834     config_target += { 'CONFIG_LINUX_USER': 'y' }
2835   elif target.endswith('bsd-user')
2836     if 'CONFIG_BSD' not in config_host
2837       if default_targets
2838         continue
2839       endif
2840       error('Target @0@ is only available on a BSD host'.format(target))
2841     endif
2842     config_target += { 'CONFIG_BSD_USER': 'y' }
2843   elif target.endswith('softmmu')
2844     config_target += { 'CONFIG_SOFTMMU': 'y' }
2845   endif
2846   if target.endswith('-user')
2847     config_target += {
2848       'CONFIG_USER_ONLY': 'y',
2849       'CONFIG_QEMU_INTERP_PREFIX':
2850         get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2851     }
2852   endif
2853
2854   accel_kconfig = []
2855   foreach sym: accelerators
2856     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2857       config_target += { sym: 'y' }
2858       config_all += { sym: 'y' }
2859       if target in modular_tcg
2860         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2861       else
2862         config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2863       endif
2864       accel_kconfig += [ sym + '=y' ]
2865     endif
2866   endforeach
2867   if accel_kconfig.length() == 0
2868     if default_targets
2869       continue
2870     endif
2871     error('No accelerator available for target @0@'.format(target))
2872   endif
2873
2874   actual_target_dirs += target
2875   config_target += keyval.load('configs/targets' / target + '.mak')
2876   config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2877
2878   if 'TARGET_NEED_FDT' in config_target
2879     fdt_required += target
2880   endif
2881
2882   # Add default keys
2883   if 'TARGET_BASE_ARCH' not in config_target
2884     config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2885   endif
2886   if 'TARGET_ABI_DIR' not in config_target
2887     config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2888   endif
2889   if 'TARGET_BIG_ENDIAN' not in config_target
2890     config_target += {'TARGET_BIG_ENDIAN': 'n'}
2891   endif
2892
2893   foreach k, v: disassemblers
2894     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2895       foreach sym: v
2896         config_target += { sym: 'y' }
2897         config_all_disas += { sym: 'y' }
2898       endforeach
2899     endif
2900   endforeach
2901
2902   config_target_data = configuration_data()
2903   foreach k, v: config_target
2904     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2905       # do nothing
2906     elif ignored.contains(k)
2907       # do nothing
2908     elif k == 'TARGET_BASE_ARCH'
2909       # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2910       # not used to select files from sourcesets.
2911       config_target_data.set('TARGET_' + v.to_upper(), 1)
2912     elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2913       config_target_data.set_quoted(k, v)
2914     elif v == 'y'
2915       config_target_data.set(k, 1)
2916     elif v == 'n'
2917       config_target_data.set(k, 0)
2918     else
2919       config_target_data.set(k, v)
2920     endif
2921   endforeach
2922   config_target_data.set('QEMU_ARCH',
2923                          'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2924   config_target_h += {target: configure_file(output: target + '-config-target.h',
2925                                                configuration: config_target_data)}
2926
2927   if target.endswith('-softmmu')
2928     config_input = meson.get_external_property(target, 'default')
2929     config_devices_mak = target + '-config-devices.mak'
2930     config_devices_mak = configure_file(
2931       input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2932       output: config_devices_mak,
2933       depfile: config_devices_mak + '.d',
2934       capture: true,
2935       command: [minikconf,
2936                 get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2937                 config_devices_mak, '@DEPFILE@', '@INPUT@',
2938                 host_kconfig, accel_kconfig,
2939                 'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2940
2941     config_devices_data = configuration_data()
2942     config_devices = keyval.load(config_devices_mak)
2943     foreach k, v: config_devices
2944       config_devices_data.set(k, 1)
2945     endforeach
2946     config_devices_mak_list += config_devices_mak
2947     config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2948                                                 configuration: config_devices_data)}
2949     config_target += config_devices
2950     config_all_devices += config_devices
2951   endif
2952   config_target_mak += {target: config_target}
2953 endforeach
2954 target_dirs = actual_target_dirs
2955
2956 # This configuration is used to build files that are shared by
2957 # multiple binaries, and then extracted out of the "common"
2958 # static_library target.
2959 #
2960 # We do not use all_sources()/all_dependencies(), because it would
2961 # build literally all source files, including devices only used by
2962 # targets that are not built for this compilation.  The CONFIG_ALL
2963 # pseudo symbol replaces it.
2964
2965 config_all += config_all_devices
2966 config_all += config_host
2967 config_all += config_all_disas
2968 config_all += {
2969   'CONFIG_XEN': xen.found(),
2970   'CONFIG_SOFTMMU': have_system,
2971   'CONFIG_USER_ONLY': have_user,
2972   'CONFIG_ALL': true,
2973 }
2974
2975 target_configs_h = []
2976 foreach target: target_dirs
2977   target_configs_h += config_target_h[target]
2978   target_configs_h += config_devices_h.get(target, [])
2979 endforeach
2980 genh += custom_target('config-poison.h',
2981                       input: [target_configs_h],
2982                       output: 'config-poison.h',
2983                       capture: true,
2984                       command: [find_program('scripts/make-config-poison.sh'),
2985                                 target_configs_h])
2986
2987 ##############
2988 # Submodules #
2989 ##############
2990
2991 capstone = not_found
2992 if not get_option('capstone').auto() or have_system or have_user
2993   capstone = dependency('capstone', version: '>=3.0.5',
2994                         method: 'pkg-config',
2995                         required: get_option('capstone'))
2996
2997   # Some versions of capstone have broken pkg-config file
2998   # that reports a wrong -I path, causing the #include to
2999   # fail later. If the system has such a broken version
3000   # do not use it.
3001   if capstone.found() and not cc.compiles('#include <capstone.h>',
3002                                           dependencies: [capstone])
3003     capstone = not_found
3004     if get_option('capstone').enabled()
3005       error('capstone requested, but it does not appear to work')
3006     endif
3007   endif
3008 endif
3009
3010 libvfio_user_dep = not_found
3011 if have_system and vfio_user_server_allowed
3012   have_internal = fs.exists(meson.current_source_dir() / 'subprojects/libvfio-user/meson.build')
3013
3014   if not have_internal
3015     error('libvfio-user source not found - please pull git submodule')
3016   endif
3017
3018   libvfio_user_proj = subproject('libvfio-user')
3019
3020   libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
3021 endif
3022
3023 fdt = not_found
3024 if have_system
3025   fdt_opt = get_option('fdt')
3026   if fdt_opt in ['enabled', 'auto', 'system']
3027     have_internal = fs.exists(meson.current_source_dir() / 'dtc/libfdt/Makefile.libfdt')
3028     fdt = cc.find_library('fdt',
3029                           required: fdt_opt == 'system' or
3030                                     fdt_opt == 'enabled' and not have_internal)
3031     if fdt.found() and cc.links('''
3032        #include <libfdt.h>
3033        #include <libfdt_env.h>
3034        int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
3035          dependencies: fdt)
3036       fdt_opt = 'system'
3037     elif fdt_opt == 'system'
3038        error('system libfdt requested, but it is too old (1.5.1 or newer required)')
3039     elif have_internal
3040       fdt_opt = 'internal'
3041     else
3042       fdt_opt = 'disabled'
3043       fdt = not_found
3044     endif
3045   endif
3046   if fdt_opt == 'internal'
3047     fdt_files = files(
3048       'dtc/libfdt/fdt.c',
3049       'dtc/libfdt/fdt_ro.c',
3050       'dtc/libfdt/fdt_wip.c',
3051       'dtc/libfdt/fdt_sw.c',
3052       'dtc/libfdt/fdt_rw.c',
3053       'dtc/libfdt/fdt_strerror.c',
3054       'dtc/libfdt/fdt_empty_tree.c',
3055       'dtc/libfdt/fdt_addresses.c',
3056       'dtc/libfdt/fdt_overlay.c',
3057       'dtc/libfdt/fdt_check.c',
3058     )
3059
3060     fdt_inc = include_directories('dtc/libfdt')
3061     libfdt = static_library('fdt',
3062                             build_by_default: false,
3063                             sources: fdt_files,
3064                             include_directories: fdt_inc)
3065     fdt = declare_dependency(link_with: libfdt,
3066                              include_directories: fdt_inc)
3067   endif
3068 else
3069   fdt_opt = 'disabled'
3070 endif
3071 if not fdt.found() and fdt_required.length() > 0
3072   error('fdt not available but required by targets ' + ', '.join(fdt_required))
3073 endif
3074
3075 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
3076 config_host_data.set('CONFIG_FDT', fdt.found())
3077 config_host_data.set('CONFIG_SLIRP', slirp.found())
3078
3079 #####################
3080 # Generated sources #
3081 #####################
3082
3083 genh += configure_file(output: 'config-host.h', configuration: config_host_data)
3084
3085 hxtool = find_program('scripts/hxtool')
3086 shaderinclude = find_program('scripts/shaderinclude.py')
3087 qapi_gen = find_program('scripts/qapi-gen.py')
3088 qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
3089                      meson.current_source_dir() / 'scripts/qapi/commands.py',
3090                      meson.current_source_dir() / 'scripts/qapi/common.py',
3091                      meson.current_source_dir() / 'scripts/qapi/error.py',
3092                      meson.current_source_dir() / 'scripts/qapi/events.py',
3093                      meson.current_source_dir() / 'scripts/qapi/expr.py',
3094                      meson.current_source_dir() / 'scripts/qapi/gen.py',
3095                      meson.current_source_dir() / 'scripts/qapi/introspect.py',
3096                      meson.current_source_dir() / 'scripts/qapi/main.py',
3097                      meson.current_source_dir() / 'scripts/qapi/parser.py',
3098                      meson.current_source_dir() / 'scripts/qapi/schema.py',
3099                      meson.current_source_dir() / 'scripts/qapi/source.py',
3100                      meson.current_source_dir() / 'scripts/qapi/types.py',
3101                      meson.current_source_dir() / 'scripts/qapi/visit.py',
3102                      meson.current_source_dir() / 'scripts/qapi-gen.py'
3103 ]
3104
3105 tracetool = [
3106   python, files('scripts/tracetool.py'),
3107    '--backend=' + ','.join(get_option('trace_backends'))
3108 ]
3109 tracetool_depends = files(
3110   'scripts/tracetool/backend/log.py',
3111   'scripts/tracetool/backend/__init__.py',
3112   'scripts/tracetool/backend/dtrace.py',
3113   'scripts/tracetool/backend/ftrace.py',
3114   'scripts/tracetool/backend/simple.py',
3115   'scripts/tracetool/backend/syslog.py',
3116   'scripts/tracetool/backend/ust.py',
3117   'scripts/tracetool/format/ust_events_c.py',
3118   'scripts/tracetool/format/ust_events_h.py',
3119   'scripts/tracetool/format/__init__.py',
3120   'scripts/tracetool/format/d.py',
3121   'scripts/tracetool/format/simpletrace_stap.py',
3122   'scripts/tracetool/format/c.py',
3123   'scripts/tracetool/format/h.py',
3124   'scripts/tracetool/format/log_stap.py',
3125   'scripts/tracetool/format/stap.py',
3126   'scripts/tracetool/__init__.py',
3127   'scripts/tracetool/vcpu.py'
3128 )
3129
3130 qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
3131                     meson.current_source_dir(),
3132                     get_option('pkgversion'), meson.project_version()]
3133 qemu_version = custom_target('qemu-version.h',
3134                              output: 'qemu-version.h',
3135                              command: qemu_version_cmd,
3136                              capture: true,
3137                              build_by_default: true,
3138                              build_always_stale: true)
3139 genh += qemu_version
3140
3141 hxdep = []
3142 hx_headers = [
3143   ['qemu-options.hx', 'qemu-options.def'],
3144   ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
3145 ]
3146 if have_system
3147   hx_headers += [
3148     ['hmp-commands.hx', 'hmp-commands.h'],
3149     ['hmp-commands-info.hx', 'hmp-commands-info.h'],
3150   ]
3151 endif
3152 foreach d : hx_headers
3153   hxdep += custom_target(d[1],
3154                 input: files(d[0]),
3155                 output: d[1],
3156                 capture: true,
3157                 build_by_default: true, # to be removed when added to a target
3158                 command: [hxtool, '-h', '@INPUT0@'])
3159 endforeach
3160 genh += hxdep
3161
3162 ###################
3163 # Collect sources #
3164 ###################
3165
3166 authz_ss = ss.source_set()
3167 blockdev_ss = ss.source_set()
3168 block_ss = ss.source_set()
3169 chardev_ss = ss.source_set()
3170 common_ss = ss.source_set()
3171 crypto_ss = ss.source_set()
3172 hwcore_ss = ss.source_set()
3173 io_ss = ss.source_set()
3174 qmp_ss = ss.source_set()
3175 qom_ss = ss.source_set()
3176 softmmu_ss = ss.source_set()
3177 specific_fuzz_ss = ss.source_set()
3178 specific_ss = ss.source_set()
3179 stub_ss = ss.source_set()
3180 trace_ss = ss.source_set()
3181 user_ss = ss.source_set()
3182 util_ss = ss.source_set()
3183
3184 # accel modules
3185 qtest_module_ss = ss.source_set()
3186 tcg_module_ss = ss.source_set()
3187
3188 modules = {}
3189 target_modules = {}
3190 hw_arch = {}
3191 target_arch = {}
3192 target_softmmu_arch = {}
3193 target_user_arch = {}
3194
3195 ###############
3196 # Trace files #
3197 ###############
3198
3199 # TODO: add each directory to the subdirs from its own meson.build, once
3200 # we have those
3201 trace_events_subdirs = [
3202   'crypto',
3203   'qapi',
3204   'qom',
3205   'monitor',
3206   'util',
3207   'gdbstub',
3208 ]
3209 if have_linux_user
3210   trace_events_subdirs += [ 'linux-user' ]
3211 endif
3212 if have_bsd_user
3213   trace_events_subdirs += [ 'bsd-user' ]
3214 endif
3215 if have_block
3216   trace_events_subdirs += [
3217     'authz',
3218     'block',
3219     'io',
3220     'nbd',
3221     'scsi',
3222   ]
3223 endif
3224 if have_system
3225   trace_events_subdirs += [
3226     'accel/kvm',
3227     'audio',
3228     'backends',
3229     'backends/tpm',
3230     'chardev',
3231     'ebpf',
3232     'hw/9pfs',
3233     'hw/acpi',
3234     'hw/adc',
3235     'hw/alpha',
3236     'hw/arm',
3237     'hw/audio',
3238     'hw/block',
3239     'hw/block/dataplane',
3240     'hw/char',
3241     'hw/display',
3242     'hw/dma',
3243     'hw/hyperv',
3244     'hw/i2c',
3245     'hw/i386',
3246     'hw/i386/xen',
3247     'hw/i386/kvm',
3248     'hw/ide',
3249     'hw/input',
3250     'hw/intc',
3251     'hw/isa',
3252     'hw/mem',
3253     'hw/mips',
3254     'hw/misc',
3255     'hw/misc/macio',
3256     'hw/net',
3257     'hw/net/can',
3258     'hw/nubus',
3259     'hw/nvme',
3260     'hw/nvram',
3261     'hw/pci',
3262     'hw/pci-host',
3263     'hw/ppc',
3264     'hw/rdma',
3265     'hw/rdma/vmw',
3266     'hw/rtc',
3267     'hw/s390x',
3268     'hw/scsi',
3269     'hw/sd',
3270     'hw/sh4',
3271     'hw/sparc',
3272     'hw/sparc64',
3273     'hw/ssi',
3274     'hw/timer',
3275     'hw/tpm',
3276     'hw/usb',
3277     'hw/vfio',
3278     'hw/virtio',
3279     'hw/watchdog',
3280     'hw/xen',
3281     'hw/gpio',
3282     'migration',
3283     'net',
3284     'softmmu',
3285     'ui',
3286     'hw/remote',
3287   ]
3288 endif
3289 if have_system or have_user
3290   trace_events_subdirs += [
3291     'accel/tcg',
3292     'hw/core',
3293     'target/arm',
3294     'target/arm/hvf',
3295     'target/hppa',
3296     'target/i386',
3297     'target/i386/kvm',
3298     'target/mips/tcg',
3299     'target/nios2',
3300     'target/ppc',
3301     'target/riscv',
3302     'target/s390x',
3303     'target/s390x/kvm',
3304     'target/sparc',
3305   ]
3306 endif
3307
3308 vhost_user = not_found
3309 if targetos == 'linux' and have_vhost_user
3310   libvhost_user = subproject('libvhost-user')
3311   vhost_user = libvhost_user.get_variable('vhost_user_dep')
3312 endif
3313
3314 libvduse = not_found
3315 if have_libvduse
3316   libvduse_proj = subproject('libvduse')
3317   libvduse = libvduse_proj.get_variable('libvduse_dep')
3318 endif
3319
3320 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3321 # that is filled in by qapi/.
3322 subdir('qapi')
3323 subdir('qobject')
3324 subdir('stubs')
3325 subdir('trace')
3326 subdir('util')
3327 subdir('qom')
3328 subdir('authz')
3329 subdir('crypto')
3330 subdir('ui')
3331 subdir('hw')
3332 subdir('gdbstub')
3333
3334 if enable_modules
3335   libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3336   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3337 endif
3338
3339 qom_ss = qom_ss.apply(config_host, strict: false)
3340 libqom = static_library('qom', qom_ss.sources() + genh,
3341                         dependencies: [qom_ss.dependencies()],
3342                         name_suffix: 'fa')
3343 qom = declare_dependency(link_whole: libqom)
3344
3345 event_loop_base = files('event-loop-base.c')
3346 event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3347                                  build_by_default: true)
3348 event_loop_base = declare_dependency(link_whole: event_loop_base,
3349                                      dependencies: [qom])
3350
3351 stub_ss = stub_ss.apply(config_all, strict: false)
3352
3353 util_ss.add_all(trace_ss)
3354 util_ss = util_ss.apply(config_all, strict: false)
3355 libqemuutil = static_library('qemuutil',
3356                              sources: util_ss.sources() + stub_ss.sources() + genh,
3357                              dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3358 qemuutil = declare_dependency(link_with: libqemuutil,
3359                               sources: genh + version_res,
3360                               dependencies: [event_loop_base])
3361
3362 if have_system or have_user
3363   decodetree = generator(find_program('scripts/decodetree.py'),
3364                          output: 'decode-@BASENAME@.c.inc',
3365                          arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3366   subdir('libdecnumber')
3367   subdir('target')
3368 endif
3369
3370 subdir('audio')
3371 subdir('io')
3372 subdir('chardev')
3373 subdir('fsdev')
3374 subdir('dump')
3375
3376 if have_block
3377   block_ss.add(files(
3378     'block.c',
3379     'blockjob.c',
3380     'job.c',
3381     'qemu-io-cmds.c',
3382   ))
3383   if config_host_data.get('CONFIG_REPLICATION')
3384     block_ss.add(files('replication.c'))
3385   endif
3386
3387   subdir('nbd')
3388   subdir('scsi')
3389   subdir('block')
3390
3391   blockdev_ss.add(files(
3392     'blockdev.c',
3393     'blockdev-nbd.c',
3394     'iothread.c',
3395     'job-qmp.c',
3396   ), gnutls)
3397
3398   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3399   # os-win32.c does not
3400   blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3401   softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3402 endif
3403
3404 common_ss.add(files('cpus-common.c'))
3405 specific_ss.add(files('cpu.c'))
3406
3407 subdir('softmmu')
3408
3409 # Work around a gcc bug/misfeature wherein constant propagation looks
3410 # through an alias:
3411 #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3412 # to guess that a const variable is always zero.  Without lto, this is
3413 # impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3414 # without lto, not even the alias is required -- we simply use different
3415 # declarations in different compilation units.
3416 pagevary = files('page-vary-common.c')
3417 if get_option('b_lto')
3418   pagevary_flags = ['-fno-lto']
3419   if get_option('cfi')
3420     pagevary_flags += '-fno-sanitize=cfi-icall'
3421   endif
3422   pagevary = static_library('page-vary-common', sources: pagevary + genh,
3423                             c_args: pagevary_flags)
3424   pagevary = declare_dependency(link_with: pagevary)
3425 endif
3426 common_ss.add(pagevary)
3427 specific_ss.add(files('page-vary.c'))
3428
3429 subdir('backends')
3430 subdir('disas')
3431 subdir('migration')
3432 subdir('monitor')
3433 subdir('net')
3434 subdir('replay')
3435 subdir('semihosting')
3436 subdir('stats')
3437 subdir('tcg')
3438 subdir('fpu')
3439 subdir('accel')
3440 subdir('plugins')
3441 subdir('ebpf')
3442
3443 common_user_inc = []
3444
3445 subdir('common-user')
3446 subdir('bsd-user')
3447 subdir('linux-user')
3448
3449 # needed for fuzzing binaries
3450 subdir('tests/qtest/libqos')
3451 subdir('tests/qtest/fuzz')
3452
3453 # accel modules
3454 tcg_real_module_ss = ss.source_set()
3455 tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3456 specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3457 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3458                                 'tcg': tcg_real_module_ss }}
3459
3460 ########################
3461 # Library dependencies #
3462 ########################
3463
3464 modinfo_collect = find_program('scripts/modinfo-collect.py')
3465 modinfo_generate = find_program('scripts/modinfo-generate.py')
3466 modinfo_files = []
3467
3468 block_mods = []
3469 softmmu_mods = []
3470 foreach d, list : modules
3471   if not (d == 'block' ? have_block : have_system)
3472     continue
3473   endif
3474
3475   foreach m, module_ss : list
3476     if enable_modules
3477       module_ss = module_ss.apply(config_all, strict: false)
3478       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3479                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3480       if d == 'block'
3481         block_mods += sl
3482       else
3483         softmmu_mods += sl
3484       endif
3485       if module_ss.sources() != []
3486         # FIXME: Should use sl.extract_all_objects(recursive: true) as
3487         # input. Sources can be used multiple times but objects are
3488         # unique when it comes to lookup in compile_commands.json.
3489         # Depnds on a mesion version with
3490         # https://github.com/mesonbuild/meson/pull/8900
3491         modinfo_files += custom_target(d + '-' + m + '.modinfo',
3492                                        output: d + '-' + m + '.modinfo',
3493                                        input: module_ss.sources() + genh,
3494                                        capture: true,
3495                                        command: [modinfo_collect, module_ss.sources()])
3496       endif
3497     else
3498       if d == 'block'
3499         block_ss.add_all(module_ss)
3500       else
3501         softmmu_ss.add_all(module_ss)
3502       endif
3503     endif
3504   endforeach
3505 endforeach
3506
3507 foreach d, list : target_modules
3508   foreach m, module_ss : list
3509     if enable_modules
3510       foreach target : target_dirs
3511         if target.endswith('-softmmu')
3512           config_target = config_target_mak[target]
3513           config_target += config_host
3514           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3515           c_args = ['-DNEED_CPU_H',
3516                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3517                     '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3518           target_module_ss = module_ss.apply(config_target, strict: false)
3519           if target_module_ss.sources() != []
3520             module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3521             sl = static_library(module_name,
3522                                 [genh, target_module_ss.sources()],
3523                                 dependencies: [modulecommon, target_module_ss.dependencies()],
3524                                 include_directories: target_inc,
3525                                 c_args: c_args,
3526                                 pic: true)
3527             softmmu_mods += sl
3528             # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3529             modinfo_files += custom_target(module_name + '.modinfo',
3530                                            output: module_name + '.modinfo',
3531                                            input: target_module_ss.sources() + genh,
3532                                            capture: true,
3533                                            command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3534           endif
3535         endif
3536       endforeach
3537     else
3538       specific_ss.add_all(module_ss)
3539     endif
3540   endforeach
3541 endforeach
3542
3543 if enable_modules
3544   foreach target : target_dirs
3545     if target.endswith('-softmmu')
3546       config_target = config_target_mak[target]
3547       config_devices_mak = target + '-config-devices.mak'
3548       modinfo_src = custom_target('modinfo-' + target + '.c',
3549                                   output: 'modinfo-' + target + '.c',
3550                                   input: modinfo_files,
3551                                   command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3552                                   capture: true)
3553
3554       modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3555       modinfo_dep = declare_dependency(link_with: modinfo_lib)
3556
3557       arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3558       hw_arch[arch].add(modinfo_dep)
3559     endif
3560   endforeach
3561 endif
3562
3563 nm = find_program('nm')
3564 undefsym = find_program('scripts/undefsym.py')
3565 block_syms = custom_target('block.syms', output: 'block.syms',
3566                              input: [libqemuutil, block_mods],
3567                              capture: true,
3568                              command: [undefsym, nm, '@INPUT@'])
3569 qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3570                              input: [libqemuutil, softmmu_mods],
3571                              capture: true,
3572                              command: [undefsym, nm, '@INPUT@'])
3573
3574 authz_ss = authz_ss.apply(config_host, strict: false)
3575 libauthz = static_library('authz', authz_ss.sources() + genh,
3576                           dependencies: [authz_ss.dependencies()],
3577                           name_suffix: 'fa',
3578                           build_by_default: false)
3579
3580 authz = declare_dependency(link_whole: libauthz,
3581                            dependencies: qom)
3582
3583 crypto_ss = crypto_ss.apply(config_host, strict: false)
3584 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3585                            dependencies: [crypto_ss.dependencies()],
3586                            name_suffix: 'fa',
3587                            build_by_default: false)
3588
3589 crypto = declare_dependency(link_whole: libcrypto,
3590                             dependencies: [authz, qom])
3591
3592 io_ss = io_ss.apply(config_host, strict: false)
3593 libio = static_library('io', io_ss.sources() + genh,
3594                        dependencies: [io_ss.dependencies()],
3595                        link_with: libqemuutil,
3596                        name_suffix: 'fa',
3597                        build_by_default: false)
3598
3599 io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3600
3601 libmigration = static_library('migration', sources: migration_files + genh,
3602                               name_suffix: 'fa',
3603                               build_by_default: false)
3604 migration = declare_dependency(link_with: libmigration,
3605                                dependencies: [zlib, qom, io])
3606 softmmu_ss.add(migration)
3607
3608 block_ss = block_ss.apply(config_host, strict: false)
3609 libblock = static_library('block', block_ss.sources() + genh,
3610                           dependencies: block_ss.dependencies(),
3611                           link_depends: block_syms,
3612                           name_suffix: 'fa',
3613                           build_by_default: false)
3614
3615 block = declare_dependency(link_whole: [libblock],
3616                            link_args: '@block.syms',
3617                            dependencies: [crypto, io])
3618
3619 blockdev_ss = blockdev_ss.apply(config_host, strict: false)
3620 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3621                              dependencies: blockdev_ss.dependencies(),
3622                              name_suffix: 'fa',
3623                              build_by_default: false)
3624
3625 blockdev = declare_dependency(link_whole: [libblockdev],
3626                               dependencies: [block, event_loop_base])
3627
3628 qmp_ss = qmp_ss.apply(config_host, strict: false)
3629 libqmp = static_library('qmp', qmp_ss.sources() + genh,
3630                         dependencies: qmp_ss.dependencies(),
3631                         name_suffix: 'fa',
3632                         build_by_default: false)
3633
3634 qmp = declare_dependency(link_whole: [libqmp])
3635
3636 libchardev = static_library('chardev', chardev_ss.sources() + genh,
3637                             name_suffix: 'fa',
3638                             dependencies: chardev_ss.dependencies(),
3639                             build_by_default: false)
3640
3641 chardev = declare_dependency(link_whole: libchardev)
3642
3643 hwcore_ss = hwcore_ss.apply(config_host, strict: false)
3644 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3645                            name_suffix: 'fa',
3646                            build_by_default: false)
3647 hwcore = declare_dependency(link_whole: libhwcore)
3648 common_ss.add(hwcore)
3649
3650 ###########
3651 # Targets #
3652 ###########
3653
3654 emulator_modules = []
3655 foreach m : block_mods + softmmu_mods
3656   emulator_modules += shared_module(m.name(),
3657                 build_by_default: true,
3658                 name_prefix: '',
3659                 link_whole: m,
3660                 install: true,
3661                 install_dir: qemu_moddir)
3662 endforeach
3663 if emulator_modules.length() > 0
3664   alias_target('modules', emulator_modules)
3665 endif
3666
3667 softmmu_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3668 common_ss.add(qom, qemuutil)
3669
3670 common_ss.add_all(when: 'CONFIG_SOFTMMU', if_true: [softmmu_ss])
3671 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3672
3673 common_all = common_ss.apply(config_all, strict: false)
3674 common_all = static_library('common',
3675                             build_by_default: false,
3676                             sources: common_all.sources() + genh,
3677                             include_directories: common_user_inc,
3678                             implicit_include_directories: false,
3679                             dependencies: common_all.dependencies(),
3680                             name_suffix: 'fa')
3681
3682 feature_to_c = find_program('scripts/feature_to_c.sh')
3683
3684 if targetos == 'darwin'
3685   entitlement = find_program('scripts/entitlement.sh')
3686 endif
3687
3688 emulators = {}
3689 foreach target : target_dirs
3690   config_target = config_target_mak[target]
3691   target_name = config_target['TARGET_NAME']
3692   target_base_arch = config_target['TARGET_BASE_ARCH']
3693   arch_srcs = [config_target_h[target]]
3694   arch_deps = []
3695   c_args = ['-DNEED_CPU_H',
3696             '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3697             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3698   link_args = emulator_link_args
3699
3700   config_target += config_host
3701   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3702   if targetos == 'linux'
3703     target_inc += include_directories('linux-headers', is_system: true)
3704   endif
3705   if target.endswith('-softmmu')
3706     target_type='system'
3707     t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3708     arch_srcs += t.sources()
3709     arch_deps += t.dependencies()
3710
3711     hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3712     hw = hw_arch[hw_dir].apply(config_target, strict: false)
3713     arch_srcs += hw.sources()
3714     arch_deps += hw.dependencies()
3715
3716     arch_srcs += config_devices_h[target]
3717     link_args += ['@block.syms', '@qemu.syms']
3718   else
3719     abi = config_target['TARGET_ABI_DIR']
3720     target_type='user'
3721     target_inc += common_user_inc
3722     if target_base_arch in target_user_arch
3723       t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3724       arch_srcs += t.sources()
3725       arch_deps += t.dependencies()
3726     endif
3727     if 'CONFIG_LINUX_USER' in config_target
3728       base_dir = 'linux-user'
3729     endif
3730     if 'CONFIG_BSD_USER' in config_target
3731       base_dir = 'bsd-user'
3732       target_inc += include_directories('bsd-user/' / targetos)
3733       target_inc += include_directories('bsd-user/host/' / host_arch)
3734       dir = base_dir / abi
3735       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3736     endif
3737     target_inc += include_directories(
3738       base_dir,
3739       base_dir / abi,
3740     )
3741     if 'CONFIG_LINUX_USER' in config_target
3742       dir = base_dir / abi
3743       arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3744       if config_target.has_key('TARGET_SYSTBL_ABI')
3745         arch_srcs += \
3746           syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3747                                              extra_args : config_target['TARGET_SYSTBL_ABI'])
3748       endif
3749     endif
3750   endif
3751
3752   if 'TARGET_XML_FILES' in config_target
3753     gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3754                                 output: target + '-gdbstub-xml.c',
3755                                 input: files(config_target['TARGET_XML_FILES'].split()),
3756                                 command: [feature_to_c, '@INPUT@'],
3757                                 capture: true)
3758     arch_srcs += gdbstub_xml
3759   endif
3760
3761   t = target_arch[target_base_arch].apply(config_target, strict: false)
3762   arch_srcs += t.sources()
3763   arch_deps += t.dependencies()
3764
3765   target_common = common_ss.apply(config_target, strict: false)
3766   objects = common_all.extract_objects(target_common.sources())
3767   deps = target_common.dependencies()
3768
3769   target_specific = specific_ss.apply(config_target, strict: false)
3770   arch_srcs += target_specific.sources()
3771   arch_deps += target_specific.dependencies()
3772
3773   lib = static_library('qemu-' + target,
3774                  sources: arch_srcs + genh,
3775                  dependencies: arch_deps,
3776                  objects: objects,
3777                  include_directories: target_inc,
3778                  c_args: c_args,
3779                  build_by_default: false,
3780                  name_suffix: 'fa')
3781
3782   if target.endswith('-softmmu')
3783     execs = [{
3784       'name': 'qemu-system-' + target_name,
3785       'win_subsystem': 'console',
3786       'sources': files('softmmu/main.c'),
3787       'dependencies': []
3788     }]
3789     if targetos == 'windows' and (sdl.found() or gtk.found())
3790       execs += [{
3791         'name': 'qemu-system-' + target_name + 'w',
3792         'win_subsystem': 'windows',
3793         'sources': files('softmmu/main.c'),
3794         'dependencies': []
3795       }]
3796     endif
3797     if get_option('fuzzing')
3798       specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3799       execs += [{
3800         'name': 'qemu-fuzz-' + target_name,
3801         'win_subsystem': 'console',
3802         'sources': specific_fuzz.sources(),
3803         'dependencies': specific_fuzz.dependencies(),
3804       }]
3805     endif
3806   else
3807     execs = [{
3808       'name': 'qemu-' + target_name,
3809       'win_subsystem': 'console',
3810       'sources': [],
3811       'dependencies': []
3812     }]
3813   endif
3814   foreach exe: execs
3815     exe_name = exe['name']
3816     if targetos == 'darwin'
3817       exe_name += '-unsigned'
3818     endif
3819
3820     emulator = executable(exe_name, exe['sources'],
3821                install: true,
3822                c_args: c_args,
3823                dependencies: arch_deps + deps + exe['dependencies'],
3824                objects: lib.extract_all_objects(recursive: true),
3825                link_language: link_language,
3826                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3827                link_args: link_args,
3828                win_subsystem: exe['win_subsystem'])
3829
3830     if targetos == 'darwin'
3831       icon = 'pc-bios/qemu.rsrc'
3832       build_input = [emulator, files(icon)]
3833       install_input = [
3834         get_option('bindir') / exe_name,
3835         meson.current_source_dir() / icon
3836       ]
3837       if 'CONFIG_HVF' in config_target
3838         entitlements = 'accel/hvf/entitlements.plist'
3839         build_input += files(entitlements)
3840         install_input += meson.current_source_dir() / entitlements
3841       endif
3842
3843       emulators += {exe['name'] : custom_target(exe['name'],
3844                    input: build_input,
3845                    output: exe['name'],
3846                    command: [entitlement, '@OUTPUT@', '@INPUT@'])
3847       }
3848
3849       meson.add_install_script(entitlement, '--install',
3850                                get_option('bindir') / exe['name'],
3851                                install_input)
3852     else
3853       emulators += {exe['name']: emulator}
3854     endif
3855
3856     if stap.found()
3857       foreach stp: [
3858         {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3859         {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3860         {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3861         {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3862       ]
3863         custom_target(exe['name'] + stp['ext'],
3864                       input: trace_events_all,
3865                       output: exe['name'] + stp['ext'],
3866                       install: stp['install'],
3867                       install_dir: get_option('datadir') / 'systemtap/tapset',
3868                       command: [
3869                         tracetool, '--group=all', '--format=' + stp['fmt'],
3870                         '--binary=' + stp['bin'],
3871                         '--target-name=' + target_name,
3872                         '--target-type=' + target_type,
3873                         '--probe-prefix=qemu.' + target_type + '.' + target_name,
3874                         '@INPUT@', '@OUTPUT@'
3875                       ],
3876                       depend_files: tracetool_depends)
3877       endforeach
3878     endif
3879   endforeach
3880 endforeach
3881
3882 # Other build targets
3883
3884 if 'CONFIG_PLUGIN' in config_host
3885   install_headers('include/qemu/qemu-plugin.h')
3886 endif
3887
3888 subdir('qga')
3889
3890 # Don't build qemu-keymap if xkbcommon is not explicitly enabled
3891 # when we don't build tools or system
3892 if xkbcommon.found()
3893   # used for the update-keymaps target, so include rules even if !have_tools
3894   qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3895                            dependencies: [qemuutil, xkbcommon], install: have_tools)
3896 endif
3897
3898 if have_tools
3899   qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3900              dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3901   qemu_io = executable('qemu-io', files('qemu-io.c'),
3902              dependencies: [block, qemuutil], install: true)
3903   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3904                dependencies: [blockdev, qemuutil, gnutls, selinux],
3905                install: true)
3906
3907   subdir('storage-daemon')
3908   subdir('contrib/rdmacm-mux')
3909   subdir('contrib/elf2dmp')
3910
3911   executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3912              dependencies: qemuutil,
3913              install: true)
3914
3915   if have_vhost_user
3916     subdir('contrib/vhost-user-blk')
3917     subdir('contrib/vhost-user-gpu')
3918     subdir('contrib/vhost-user-input')
3919     subdir('contrib/vhost-user-scsi')
3920   endif
3921
3922   if targetos == 'linux'
3923     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3924                dependencies: [qemuutil, libcap_ng],
3925                install: true,
3926                install_dir: get_option('libexecdir'))
3927
3928     executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3929                dependencies: [authz, crypto, io, qom, qemuutil,
3930                               libcap_ng, mpathpersist],
3931                install: true)
3932   endif
3933
3934   if have_ivshmem
3935     subdir('contrib/ivshmem-client')
3936     subdir('contrib/ivshmem-server')
3937   endif
3938 endif
3939
3940 subdir('scripts')
3941 subdir('tools')
3942 subdir('pc-bios')
3943 subdir('docs')
3944 subdir('tests')
3945 if gtk.found()
3946   subdir('po')
3947 endif
3948
3949 if host_machine.system() == 'windows'
3950   nsis_cmd = [
3951     find_program('scripts/nsis.py'),
3952     '@OUTPUT@',
3953     get_option('prefix'),
3954     meson.current_source_dir(),
3955     glib_pc.get_variable('bindir'),
3956     host_machine.cpu(),
3957     '--',
3958     '-DDISPLAYVERSION=' + meson.project_version(),
3959   ]
3960   if build_docs
3961     nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3962   endif
3963   if gtk.found()
3964     nsis_cmd += '-DCONFIG_GTK=y'
3965   endif
3966
3967   nsis = custom_target('nsis',
3968                        output: 'qemu-setup-' + meson.project_version() + '.exe',
3969                        input: files('qemu.nsi'),
3970                        build_always_stale: true,
3971                        command: nsis_cmd + ['@INPUT@'])
3972   alias_target('installer', nsis)
3973 endif
3974
3975 #########################
3976 # Configuration summary #
3977 #########################
3978
3979 # Directories
3980 summary_info = {}
3981 summary_info += {'Install prefix':    get_option('prefix')}
3982 summary_info += {'BIOS directory':    qemu_datadir}
3983 pathsep = targetos == 'windows' ? ';' : ':'
3984 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
3985 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
3986 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
3987 summary_info += {'module directory':  qemu_moddir}
3988 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
3989 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
3990 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
3991 if targetos != 'windows'
3992   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
3993   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
3994 else
3995   summary_info += {'local state directory': 'queried at runtime'}
3996 endif
3997 summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
3998 summary_info += {'Build directory':   meson.current_build_dir()}
3999 summary_info += {'Source path':       meson.current_source_dir()}
4000 summary_info += {'GIT submodules':    config_host['GIT_SUBMODULES']}
4001 summary(summary_info, bool_yn: true, section: 'Directories')
4002
4003 # Host binaries
4004 summary_info = {}
4005 summary_info += {'git':               config_host['GIT']}
4006 summary_info += {'make':              config_host['MAKE']}
4007 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
4008 summary_info += {'sphinx-build':      sphinx_build}
4009 if config_host.has_key('HAVE_GDB_BIN')
4010   summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
4011 endif
4012 summary_info += {'iasl':              iasl}
4013 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
4014 if targetos == 'windows' and have_ga
4015   summary_info += {'wixl':            wixl}
4016 endif
4017 if slirp.found() and have_system
4018   summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
4019 endif
4020 summary(summary_info, bool_yn: true, section: 'Host binaries')
4021
4022 # Configurable features
4023 summary_info = {}
4024 summary_info += {'Documentation':     build_docs}
4025 summary_info += {'system-mode emulation': have_system}
4026 summary_info += {'user-mode emulation': have_user}
4027 summary_info += {'block layer':       have_block}
4028 summary_info += {'Install blobs':     get_option('install_blobs')}
4029 summary_info += {'module support':    enable_modules}
4030 if enable_modules
4031   summary_info += {'alternative module path': get_option('module_upgrades')}
4032 endif
4033 summary_info += {'fuzzing support':   get_option('fuzzing')}
4034 if have_system
4035   summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
4036 endif
4037 summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
4038 if 'simple' in get_option('trace_backends')
4039   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
4040 endif
4041 summary_info += {'D-Bus display':     dbus_display}
4042 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
4043 summary_info += {'vhost-kernel support': have_vhost_kernel}
4044 summary_info += {'vhost-net support': have_vhost_net}
4045 summary_info += {'vhost-user support': have_vhost_user}
4046 summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
4047 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
4048 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
4049 summary_info += {'build guest agent': have_ga}
4050 summary(summary_info, bool_yn: true, section: 'Configurable features')
4051
4052 # Compilation information
4053 summary_info = {}
4054 summary_info += {'host CPU':          cpu}
4055 summary_info += {'host endianness':   build_machine.endian()}
4056 summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
4057 summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
4058 if link_language == 'cpp'
4059   summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
4060 else
4061   summary_info += {'C++ compiler':      false}
4062 endif
4063 if targetos == 'darwin'
4064   summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
4065 endif
4066 option_cflags = (get_option('debug') ? ['-g'] : [])
4067 if get_option('optimization') != 'plain'
4068   option_cflags += ['-O' + get_option('optimization')]
4069 endif
4070 summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
4071 if link_language == 'cpp'
4072   summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
4073 endif
4074 if targetos == 'darwin'
4075   summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
4076 endif
4077 link_args = get_option(link_language + '_link_args')
4078 if link_args.length() > 0
4079   summary_info += {'LDFLAGS':         ' '.join(link_args)}
4080 endif
4081 summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_common_flags + qemu_cflags)}
4082 if 'cpp' in all_languages
4083   summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_common_flags + qemu_cxxflags)}
4084 endif
4085 if 'objc' in all_languages
4086   summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_common_flags)}
4087 endif
4088 summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
4089 summary_info += {'profiler':          get_option('profiler')}
4090 summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
4091 summary_info += {'PIE':               get_option('b_pie')}
4092 summary_info += {'static build':      config_host.has_key('CONFIG_STATIC')}
4093 summary_info += {'malloc trim support': has_malloc_trim}
4094 summary_info += {'membarrier':        have_membarrier}
4095 summary_info += {'debug graph lock':  get_option('debug_graph_lock')}
4096 summary_info += {'debug stack usage': get_option('debug_stack_usage')}
4097 summary_info += {'mutex debugging':   get_option('debug_mutex')}
4098 summary_info += {'memory allocator':  get_option('malloc')}
4099 summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
4100 summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
4101 summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
4102 if get_option('gprof')
4103   gprof_info = 'YES (deprecated)'
4104 else
4105   gprof_info = get_option('gprof')
4106 endif
4107 summary_info += {'gprof':             gprof_info}
4108 summary_info += {'gcov':              get_option('b_coverage')}
4109 summary_info += {'thread sanitizer':  get_option('tsan')}
4110 summary_info += {'CFI support':       get_option('cfi')}
4111 if get_option('cfi')
4112   summary_info += {'CFI debug support': get_option('cfi_debug')}
4113 endif
4114 summary_info += {'strip binaries':    get_option('strip')}
4115 summary_info += {'sparse':            sparse}
4116 summary_info += {'mingw32 support':   targetos == 'windows'}
4117 summary(summary_info, bool_yn: true, section: 'Compilation')
4118
4119 # snarf the cross-compilation information for tests
4120 summary_info = {}
4121 have_cross = false
4122 foreach target: target_dirs
4123   tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
4124   if fs.exists(tcg_mak)
4125     config_cross_tcg = keyval.load(tcg_mak)
4126     if 'CC' in config_cross_tcg
4127       summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
4128       have_cross = true
4129     endif
4130   endif
4131 endforeach
4132 if have_cross
4133   summary(summary_info, bool_yn: true, section: 'Cross compilers')
4134 endif
4135
4136 # Targets and accelerators
4137 summary_info = {}
4138 if have_system
4139   summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
4140   summary_info += {'HAX support':       config_all.has_key('CONFIG_HAX')}
4141   summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
4142   summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
4143   summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
4144   summary_info += {'Xen support':       xen.found()}
4145   if xen.found()
4146     summary_info += {'xen ctrl version':  xen.version()}
4147   endif
4148   summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
4149 endif
4150 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
4151 if config_all.has_key('CONFIG_TCG')
4152   if get_option('tcg_interpreter')
4153     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
4154   else
4155     summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
4156   endif
4157   summary_info += {'TCG plugins': config_host.has_key('CONFIG_PLUGIN')}
4158   summary_info += {'TCG debug enabled': config_host.has_key('CONFIG_DEBUG_TCG')}
4159 endif
4160 summary_info += {'target list':       ' '.join(target_dirs)}
4161 if have_system
4162   summary_info += {'default devices':   get_option('default_devices')}
4163   summary_info += {'out of process emulation': multiprocess_allowed}
4164   summary_info += {'vfio-user server': vfio_user_server_allowed}
4165 endif
4166 summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
4167
4168 # Block layer
4169 summary_info = {}
4170 summary_info += {'coroutine backend': coroutine_backend}
4171 summary_info += {'coroutine pool':    have_coroutine_pool}
4172 if have_block
4173   summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
4174   summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
4175   summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
4176   summary_info += {'VirtFS (9P) support':    have_virtfs}
4177   summary_info += {'VirtFS (9P) Proxy Helper support': have_virtfs_proxy_helper}
4178   summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
4179   summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
4180   summary_info += {'bochs support':     get_option('bochs').allowed()}
4181   summary_info += {'cloop support':     get_option('cloop').allowed()}
4182   summary_info += {'dmg support':       get_option('dmg').allowed()}
4183   summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
4184   summary_info += {'vdi support':       get_option('vdi').allowed()}
4185   summary_info += {'vhdx support':      get_option('vhdx').allowed()}
4186   summary_info += {'vmdk support':      get_option('vmdk').allowed()}
4187   summary_info += {'vpc support':       get_option('vpc').allowed()}
4188   summary_info += {'vvfat support':     get_option('vvfat').allowed()}
4189   summary_info += {'qed support':       get_option('qed').allowed()}
4190   summary_info += {'parallels support': get_option('parallels').allowed()}
4191   summary_info += {'FUSE exports':      fuse}
4192   summary_info += {'VDUSE block exports': have_vduse_blk_export}
4193 endif
4194 summary(summary_info, bool_yn: true, section: 'Block layer support')
4195
4196 # Crypto
4197 summary_info = {}
4198 summary_info += {'TLS priority':      get_option('tls_priority')}
4199 summary_info += {'GNUTLS support':    gnutls}
4200 if gnutls.found()
4201   summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
4202 endif
4203 summary_info += {'libgcrypt':         gcrypt}
4204 summary_info += {'nettle':            nettle}
4205 if nettle.found()
4206    summary_info += {'  XTS':             xts != 'private'}
4207 endif
4208 summary_info += {'AF_ALG support':    have_afalg}
4209 summary_info += {'rng-none':          get_option('rng_none')}
4210 summary_info += {'Linux keyring':     have_keyring}
4211 summary(summary_info, bool_yn: true, section: 'Crypto')
4212
4213 # Libraries
4214 summary_info = {}
4215 if targetos == 'darwin'
4216   summary_info += {'Cocoa support':           cocoa}
4217   summary_info += {'vmnet.framework support': vmnet}
4218 endif
4219 summary_info += {'SDL support':       sdl}
4220 summary_info += {'SDL image support': sdl_image}
4221 summary_info += {'GTK support':       gtk}
4222 summary_info += {'pixman':            pixman}
4223 summary_info += {'VTE support':       vte}
4224 summary_info += {'slirp support':     slirp}
4225 summary_info += {'libtasn1':          tasn1}
4226 summary_info += {'PAM':               pam}
4227 summary_info += {'iconv support':     iconv}
4228 summary_info += {'curses support':    curses}
4229 summary_info += {'virgl support':     virgl}
4230 summary_info += {'blkio support':     blkio}
4231 summary_info += {'curl support':      curl}
4232 summary_info += {'Multipath support': mpathpersist}
4233 summary_info += {'PNG support':       png}
4234 summary_info += {'VNC support':       vnc}
4235 if vnc.found()
4236   summary_info += {'VNC SASL support':  sasl}
4237   summary_info += {'VNC JPEG support':  jpeg}
4238 endif
4239 if targetos not in ['darwin', 'haiku', 'windows']
4240   summary_info += {'OSS support':     oss}
4241   summary_info += {'sndio support':   sndio}
4242 elif targetos == 'darwin'
4243   summary_info += {'CoreAudio support': coreaudio}
4244 elif targetos == 'windows'
4245   summary_info += {'DirectSound support': dsound}
4246 endif
4247 if targetos == 'linux'
4248   summary_info += {'ALSA support':    alsa}
4249   summary_info += {'PulseAudio support': pulse}
4250 endif
4251 summary_info += {'Pipewire support':   pipewire}
4252 summary_info += {'JACK support':      jack}
4253 summary_info += {'brlapi support':    brlapi}
4254 summary_info += {'vde support':       vde}
4255 summary_info += {'netmap support':    have_netmap}
4256 summary_info += {'l2tpv3 support':    have_l2tpv3}
4257 summary_info += {'Linux AIO support': libaio}
4258 summary_info += {'Linux io_uring support': linux_io_uring}
4259 summary_info += {'ATTR/XATTR support': libattr}
4260 summary_info += {'RDMA support':      rdma}
4261 summary_info += {'PVRDMA support':    have_pvrdma}
4262 summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
4263 summary_info += {'libcap-ng support': libcap_ng}
4264 summary_info += {'bpf support':       libbpf}
4265 summary_info += {'spice protocol support': spice_protocol}
4266 if spice_protocol.found()
4267   summary_info += {'  spice server support': spice}
4268 endif
4269 summary_info += {'rbd support':       rbd}
4270 summary_info += {'smartcard support': cacard}
4271 summary_info += {'U2F support':       u2f}
4272 summary_info += {'libusb':            libusb}
4273 summary_info += {'usb net redir':     usbredir}
4274 summary_info += {'OpenGL support (epoxy)': opengl}
4275 summary_info += {'GBM':               gbm}
4276 summary_info += {'libiscsi support':  libiscsi}
4277 summary_info += {'libnfs support':    libnfs}
4278 if targetos == 'windows'
4279   if have_ga
4280     summary_info += {'QGA VSS support':   have_qga_vss}
4281   endif
4282 endif
4283 summary_info += {'seccomp support':   seccomp}
4284 summary_info += {'GlusterFS support': glusterfs}
4285 summary_info += {'TPM support':       have_tpm}
4286 summary_info += {'libssh support':    libssh}
4287 summary_info += {'lzo support':       lzo}
4288 summary_info += {'snappy support':    snappy}
4289 summary_info += {'bzip2 support':     libbzip2}
4290 summary_info += {'lzfse support':     liblzfse}
4291 summary_info += {'zstd support':      zstd}
4292 summary_info += {'NUMA host support': numa}
4293 summary_info += {'capstone':          capstone}
4294 summary_info += {'libpmem support':   libpmem}
4295 summary_info += {'libdaxctl support': libdaxctl}
4296 summary_info += {'libudev':           libudev}
4297 # Dummy dependency, keep .found()
4298 summary_info += {'FUSE lseek':        fuse_lseek.found()}
4299 summary_info += {'selinux':           selinux}
4300 summary_info += {'libdw':             libdw}
4301 summary(summary_info, bool_yn: true, section: 'Dependencies')
4302
4303 if not supported_cpus.contains(cpu)
4304   message()
4305   warning('SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!')
4306   message()
4307   message('CPU host architecture ' + cpu + ' support is not currently maintained.')
4308   message('The QEMU project intends to remove support for this host CPU in')
4309   message('a future release if nobody volunteers to maintain it and to')
4310   message('provide a build host for our continuous integration setup.')
4311   message('configure has succeeded and you can continue to build, but')
4312   message('if you care about QEMU on this platform you should contact')
4313   message('us upstream at qemu-devel@nongnu.org.')
4314 endif
4315
4316 if not supported_oses.contains(targetos)
4317   message()
4318   warning('WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!')
4319   message()
4320   message('Host OS ' + targetos + 'support is not currently maintained.')
4321   message('The QEMU project intends to remove support for this host OS in')
4322   message('a future release if nobody volunteers to maintain it and to')
4323   message('provide a build host for our continuous integration setup.')
4324   message('configure has succeeded and you can continue to build, but')
4325   message('if you care about QEMU on this platform you should contact')
4326   message('us upstream at qemu-devel@nongnu.org.')
4327 endif