xref: /qemu/meson.build (revision fa1d2f8f)
1project('qemu', ['c'], meson_version: '>=0.61.3',
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
6add_test_setup('quick', exclude_suites: ['slow', 'thorough'], is_default: true)
7add_test_setup('slow', exclude_suites: ['thorough'], env: ['G_TEST_SLOW=1', 'SPEED=slow'])
8add_test_setup('thorough', env: ['G_TEST_SLOW=1', 'SPEED=thorough'])
9
10meson.add_postconf_script(find_program('scripts/symlink-install-tree.py'))
11
12not_found = dependency('', required: false)
13keyval = import('keyval')
14ss = import('sourceset')
15fs = import('fs')
16
17targetos = host_machine.system()
18sh = find_program('sh')
19config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
20enable_modules = 'CONFIG_MODULES' in config_host
21enable_static = 'CONFIG_STATIC' in config_host
22
23# Allow both shared and static libraries unless --enable-static
24static_kwargs = enable_static ? {'static': true} : {}
25
26cc = meson.get_compiler('c')
27all_languages = ['c']
28if add_languages('cpp', required: false, native: false)
29  all_languages += ['cpp']
30  cxx = meson.get_compiler('cpp')
31endif
32if targetos == 'darwin' and \
33   add_languages('objc', required: get_option('cocoa'), native: false)
34  all_languages += ['objc']
35  objc = meson.get_compiler('objc')
36endif
37
38# Temporary directory used for files created while
39# configure runs. Since it is in the build directory
40# we can safely blow away any previous version of it
41# (and we need not jump through hoops to try to delete
42# it when configure exits.)
43tmpdir = meson.current_build_dir() / 'meson-private/temp'
44
45if get_option('qemu_suffix').startswith('/')
46  error('qemu_suffix cannot start with a /')
47endif
48
49qemu_confdir = get_option('sysconfdir') / get_option('qemu_suffix')
50qemu_datadir = get_option('datadir') / get_option('qemu_suffix')
51qemu_docdir = get_option('docdir') / get_option('qemu_suffix')
52qemu_moddir = get_option('libdir') / get_option('qemu_suffix')
53
54qemu_desktopdir = get_option('datadir') / 'applications'
55qemu_icondir = get_option('datadir') / 'icons'
56
57config_host_data = configuration_data()
58genh = []
59qapi_trace_events = []
60
61bsd_oses = ['gnu/kfreebsd', 'freebsd', 'netbsd', 'openbsd', 'dragonfly', 'darwin']
62supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux']
63supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv', 'x86', 'x86_64',
64  'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64']
65
66cpu = host_machine.cpu_family()
67
68# Unify riscv* to a single family.
69if cpu in ['riscv32', 'riscv64']
70  cpu = 'riscv'
71endif
72
73target_dirs = config_host['TARGET_DIRS'].split()
74have_linux_user = false
75have_bsd_user = false
76have_system = false
77foreach target : target_dirs
78  have_linux_user = have_linux_user or target.endswith('linux-user')
79  have_bsd_user = have_bsd_user or target.endswith('bsd-user')
80  have_system = have_system or target.endswith('-softmmu')
81endforeach
82have_user = have_linux_user or have_bsd_user
83have_tools = get_option('tools') \
84  .disable_auto_if(not have_system) \
85  .allowed()
86have_ga = get_option('guest_agent') \
87  .disable_auto_if(not have_system and not have_tools) \
88  .require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
89           error_message: 'unsupported OS for QEMU guest agent') \
90  .allowed()
91have_block = have_system or have_tools
92
93python = import('python').find_installation()
94
95if cpu not in supported_cpus
96  host_arch = 'unknown'
97elif cpu == 'x86'
98  host_arch = 'i386'
99elif cpu == 'mips64'
100  host_arch = 'mips'
101else
102  host_arch = cpu
103endif
104
105if cpu in ['x86', 'x86_64']
106  kvm_targets = ['i386-softmmu', 'x86_64-softmmu']
107elif cpu == 'aarch64'
108  kvm_targets = ['aarch64-softmmu']
109elif cpu == 's390x'
110  kvm_targets = ['s390x-softmmu']
111elif cpu in ['ppc', 'ppc64']
112  kvm_targets = ['ppc-softmmu', 'ppc64-softmmu']
113elif cpu in ['mips', 'mips64']
114  kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu']
115elif cpu in ['riscv']
116  kvm_targets = ['riscv32-softmmu', 'riscv64-softmmu']
117else
118  kvm_targets = []
119endif
120
121kvm_targets_c = '""'
122if get_option('kvm').allowed() and targetos == 'linux'
123  kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
124endif
125config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
126
127accelerator_targets = { 'CONFIG_KVM': kvm_targets }
128
129if cpu in ['aarch64']
130  accelerator_targets += {
131    'CONFIG_HVF': ['aarch64-softmmu']
132  }
133endif
134
135if cpu in ['x86', 'x86_64', 'arm', 'aarch64']
136  # i386 emulator provides xenpv machine type for multiple architectures
137  accelerator_targets += {
138    'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu'],
139  }
140endif
141if cpu in ['x86', 'x86_64']
142  accelerator_targets += {
143    'CONFIG_HAX': ['i386-softmmu', 'x86_64-softmmu'],
144    'CONFIG_HVF': ['x86_64-softmmu'],
145    'CONFIG_NVMM': ['i386-softmmu', 'x86_64-softmmu'],
146    'CONFIG_WHPX': ['i386-softmmu', 'x86_64-softmmu'],
147  }
148endif
149
150modular_tcg = []
151# Darwin does not support references to thread-local variables in modules
152if targetos != 'darwin'
153  modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
154endif
155
156edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
157unpack_edk2_blobs = false
158foreach target : edk2_targets
159  if target in target_dirs
160    bzip2 = find_program('bzip2', required: get_option('install_blobs'))
161    unpack_edk2_blobs = bzip2.found()
162    break
163  endif
164endforeach
165
166dtrace = not_found
167stap = not_found
168if 'dtrace' in get_option('trace_backends')
169  dtrace = find_program('dtrace', required: true)
170  stap = find_program('stap', required: false)
171  if stap.found()
172    # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
173    # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
174    # instead. QEMU --enable-modules depends on this because the SystemTap
175    # semaphores are linked into the main binary and not the module's shared
176    # object.
177    add_global_arguments('-DSTAP_SDT_V2',
178                         native: false, language: all_languages)
179  endif
180endif
181
182if get_option('iasl') == ''
183  iasl = find_program('iasl', required: false)
184else
185  iasl = find_program(get_option('iasl'), required: true)
186endif
187
188##################
189# Compiler flags #
190##################
191
192qemu_cflags = config_host['QEMU_CFLAGS'].split()
193qemu_objcflags = config_host['QEMU_OBJCFLAGS'].split()
194qemu_ldflags = config_host['QEMU_LDFLAGS'].split()
195
196if enable_static
197  qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static'
198endif
199
200# Detect support for PT_GNU_RELRO + DT_BIND_NOW.
201# The combination is known as "full relro", because .got.plt is read-only too.
202qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
203
204if targetos == 'windows'
205  qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
206  qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
207endif
208
209if get_option('gprof')
210  qemu_cflags += ['-p']
211  qemu_objcflags += ['-p']
212  qemu_ldflags += ['-p']
213endif
214
215# Specify linker-script with add_project_link_arguments so that it is not placed
216# within a linker --start-group/--end-group pair
217if get_option('fuzzing')
218  add_project_link_arguments(['-Wl,-T,',
219                              (meson.current_source_dir() / 'tests/qtest/fuzz/fork_fuzz.ld')],
220                             native: false, language: all_languages)
221
222  # Specify a filter to only instrument code that is directly related to
223  # virtual-devices.
224  configure_file(output: 'instrumentation-filter',
225                 input: 'scripts/oss-fuzz/instrumentation-filter-template',
226                 copy: true)
227
228  if cc.compiles('int main () { return 0; }',
229                  name: '-fsanitize-coverage-allowlist=/dev/null',
230                 args: ['-fsanitize-coverage-allowlist=/dev/null',
231                        '-fsanitize-coverage=trace-pc'] )
232    add_global_arguments('-fsanitize-coverage-allowlist=instrumentation-filter',
233                         native: false, language: all_languages)
234  endif
235
236  if get_option('fuzzing_engine') == ''
237    # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
238    # compiled code.  To build non-fuzzer binaries with --enable-fuzzing, link
239    # everything with fsanitize=fuzzer-no-link. Otherwise, the linker will be
240    # unable to bind the fuzzer-related callbacks added by instrumentation.
241    add_global_arguments('-fsanitize=fuzzer-no-link',
242                         native: false, language: all_languages)
243    add_global_link_arguments('-fsanitize=fuzzer-no-link',
244                              native: false, language: all_languages)
245    # For the actual fuzzer binaries, we need to link against the libfuzzer
246    # library. They need to be configurable, to support OSS-Fuzz
247    fuzz_exe_ldflags = ['-fsanitize=fuzzer']
248  else
249    # LIB_FUZZING_ENGINE was set; assume we are running on OSS-Fuzz, and
250    # the needed CFLAGS have already been provided
251    fuzz_exe_ldflags = get_option('fuzzing_engine').split()
252  endif
253endif
254
255# Check that the C++ compiler exists and works with the C compiler.
256link_language = 'c'
257linker = cc
258qemu_cxxflags = []
259if 'cpp' in all_languages
260  add_global_arguments(['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'],
261                       native: false, language: 'cpp')
262  foreach k: qemu_cflags
263    if k not in ['-Wstrict-prototypes', '-Wmissing-prototypes', '-Wnested-externs',
264                 '-Wold-style-declaration', '-Wold-style-definition', '-Wredundant-decls']
265      qemu_cxxflags += [k]
266    endif
267  endforeach
268
269  if cxx.links(files('scripts/main.c'), args: qemu_cflags)
270    link_language = 'cpp'
271    linker = cxx
272  else
273    message('C++ compiler does not work with C compiler')
274    message('Disabling C++-specific optional code')
275  endif
276endif
277
278# Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
279if targetos != 'sunos' and not config_host.has_key('CONFIG_TSAN')
280  qemu_ldflags += linker.get_supported_link_arguments('-Wl,--warn-common')
281endif
282
283add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
284
285add_global_arguments(qemu_cflags, native: false, language: 'c')
286add_global_arguments(qemu_cxxflags, native: false, language: 'cpp')
287add_global_arguments(qemu_objcflags, native: false, language: 'objc')
288if targetos == 'linux'
289  add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
290                        '-isystem', 'linux-headers',
291                        language: all_languages)
292endif
293
294add_project_arguments('-iquote', '.',
295                      '-iquote', meson.current_source_dir(),
296                      '-iquote', meson.current_source_dir() / 'include',
297                      language: all_languages)
298
299sparse = find_program('cgcc', required: get_option('sparse'))
300if sparse.found()
301  run_target('sparse',
302             command: [find_program('scripts/check_sparse.py'),
303                       'compile_commands.json', sparse.full_path(), '-Wbitwise',
304                       '-Wno-transparent-union', '-Wno-old-initializer',
305                       '-Wno-non-pointer-null'])
306endif
307
308###########################################
309# Target-specific checks and dependencies #
310###########################################
311
312# Fuzzing
313if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
314    not cc.links('''
315          #include <stdint.h>
316          #include <sys/types.h>
317          int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
318          int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
319        ''',
320        args: ['-Werror', '-fsanitize=fuzzer'])
321  error('Your compiler does not support -fsanitize=fuzzer')
322endif
323
324# Tracing backends
325if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
326  error('ftrace is supported only on Linux')
327endif
328if 'syslog' in get_option('trace_backends') and not cc.compiles('''
329    #include <syslog.h>
330    int main(void) {
331        openlog("qemu", LOG_PID, LOG_DAEMON);
332        syslog(LOG_INFO, "configure");
333        return 0;
334    }''')
335  error('syslog is not supported on this system')
336endif
337
338# Miscellaneous Linux-only features
339get_option('mpath') \
340  .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
341
342multiprocess_allowed = get_option('multiprocess') \
343  .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
344  .allowed()
345
346vfio_user_server_allowed = get_option('vfio_user_server') \
347  .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
348  .allowed()
349
350have_tpm = get_option('tpm') \
351  .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
352  .allowed()
353
354# vhost
355have_vhost_user = get_option('vhost_user') \
356  .disable_auto_if(targetos != 'linux') \
357  .require(targetos != 'windows',
358           error_message: 'vhost-user is not available on Windows').allowed()
359have_vhost_vdpa = get_option('vhost_vdpa') \
360  .require(targetos == 'linux',
361           error_message: 'vhost-vdpa is only available on Linux').allowed()
362have_vhost_kernel = get_option('vhost_kernel') \
363  .require(targetos == 'linux',
364           error_message: 'vhost-kernel is only available on Linux').allowed()
365have_vhost_user_crypto = get_option('vhost_crypto') \
366  .require(have_vhost_user,
367           error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
368
369have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
370
371have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
372have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
373have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
374have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
375
376# Target-specific libraries and flags
377libm = cc.find_library('m', required: false)
378threads = dependency('threads')
379util = cc.find_library('util', required: false)
380winmm = []
381socket = []
382version_res = []
383coref = []
384iokit = []
385emulator_link_args = []
386nvmm =not_found
387hvf = not_found
388midl = not_found
389widl = not_found
390pathcch = not_found
391host_dsosuf = '.so'
392if targetos == 'windows'
393  midl = find_program('midl', required: false)
394  widl = find_program('widl', required: false)
395  pathcch = cc.find_library('pathcch')
396  socket = cc.find_library('ws2_32')
397  winmm = cc.find_library('winmm')
398
399  win = import('windows')
400  version_res = win.compile_resources('version.rc',
401                                      depend_files: files('pc-bios/qemu-nsis.ico'),
402                                      include_directories: include_directories('.'))
403  host_dsosuf = '.dll'
404elif targetos == 'darwin'
405  coref = dependency('appleframeworks', modules: 'CoreFoundation')
406  iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
407  host_dsosuf = '.dylib'
408elif targetos == 'sunos'
409  socket = [cc.find_library('socket'),
410            cc.find_library('nsl'),
411            cc.find_library('resolv')]
412elif targetos == 'haiku'
413  socket = [cc.find_library('posix_error_mapper'),
414            cc.find_library('network'),
415            cc.find_library('bsd')]
416elif targetos == 'openbsd'
417  if get_option('tcg').allowed() and target_dirs.length() > 0
418    # Disable OpenBSD W^X if available
419    emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
420  endif
421endif
422
423# Target-specific configuration of accelerators
424accelerators = []
425if get_option('kvm').allowed() and targetos == 'linux'
426  accelerators += 'CONFIG_KVM'
427endif
428if get_option('whpx').allowed() and targetos == 'windows'
429  if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
430    error('WHPX requires 64-bit host')
431  elif cc.has_header('WinHvPlatform.h', required: get_option('whpx')) and \
432       cc.has_header('WinHvEmulation.h', required: get_option('whpx'))
433    accelerators += 'CONFIG_WHPX'
434  endif
435endif
436if get_option('hvf').allowed()
437  hvf = dependency('appleframeworks', modules: 'Hypervisor',
438                   required: get_option('hvf'))
439  if hvf.found()
440    accelerators += 'CONFIG_HVF'
441  endif
442endif
443if get_option('hax').allowed()
444  if get_option('hax').enabled() or targetos in ['windows', 'darwin', 'netbsd']
445    accelerators += 'CONFIG_HAX'
446  endif
447endif
448if targetos == 'netbsd'
449  nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
450  if nvmm.found()
451    accelerators += 'CONFIG_NVMM'
452  endif
453endif
454
455tcg_arch = host_arch
456if get_option('tcg').allowed()
457  if host_arch == 'unknown'
458    if get_option('tcg_interpreter')
459      warning('Unsupported CPU @0@, will use TCG with TCI (slow)'.format(cpu))
460    else
461      error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
462    endif
463  elif get_option('tcg_interpreter')
464    warning('Use of the TCG interpreter is not recommended on this host')
465    warning('architecture. There is a native TCG execution backend available')
466    warning('which provides substantially better performance and reliability.')
467    warning('It is strongly recommended to remove the --enable-tcg-interpreter')
468    warning('configuration option on this architecture to use the native')
469    warning('backend.')
470  endif
471  if get_option('tcg_interpreter')
472    tcg_arch = 'tci'
473    config_host += { 'CONFIG_TCG_INTERPRETER': 'y' }
474  elif host_arch == 'x86_64'
475    tcg_arch = 'i386'
476  elif host_arch == 'ppc64'
477    tcg_arch = 'ppc'
478  endif
479  add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
480                        language: all_languages)
481
482  accelerators += 'CONFIG_TCG'
483  config_host += { 'CONFIG_TCG': 'y' }
484endif
485
486if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
487  error('KVM not available on this platform')
488endif
489if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
490  error('HVF not available on this platform')
491endif
492if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
493  error('NVMM not available on this platform')
494endif
495if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
496  error('WHPX not available on this platform')
497endif
498
499################
500# Dependencies #
501################
502
503# The path to glib.h is added to all compilation commands.  This was
504# grandfathered in from the QEMU Makefiles.
505add_project_arguments(config_host['GLIB_CFLAGS'].split(),
506                      native: false, language: all_languages)
507glib = declare_dependency(compile_args: config_host['GLIB_CFLAGS'].split(),
508                          link_args: config_host['GLIB_LIBS'].split(),
509                          version: config_host['GLIB_VERSION'],
510                          variables: {
511                            'bindir': config_host['GLIB_BINDIR'],
512                          })
513# override glib dep with the configure results (for subprojects)
514meson.override_dependency('glib-2.0', glib)
515
516gio = not_found
517gdbus_codegen = not_found
518gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
519if not get_option('gio').auto() or have_system
520  gio = dependency('gio-2.0', required: get_option('gio'),
521                   method: 'pkg-config', kwargs: static_kwargs)
522  if gio.found() and not cc.links('''
523    #include <gio/gio.h>
524    int main(void)
525    {
526      g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
527      return 0;
528    }''', dependencies: [glib, gio])
529    if get_option('gio').enabled()
530      error('The installed libgio is broken for static linking')
531    endif
532    gio = not_found
533  endif
534  if gio.found()
535    gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
536                                 required: get_option('gio'))
537    gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
538                          method: 'pkg-config', kwargs: static_kwargs)
539    gio = declare_dependency(dependencies: [gio, gio_unix],
540                             version: gio.version())
541  endif
542endif
543if gdbus_codegen.found() and get_option('cfi')
544  gdbus_codegen = not_found
545  gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
546endif
547
548lttng = not_found
549if 'ust' in get_option('trace_backends')
550  lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
551                     method: 'pkg-config', kwargs: static_kwargs)
552endif
553pixman = not_found
554if have_system or have_tools
555  pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
556                      method: 'pkg-config', kwargs: static_kwargs)
557endif
558zlib = dependency('zlib', required: true, kwargs: static_kwargs)
559
560libaio = not_found
561if not get_option('linux_aio').auto() or have_block
562  libaio = cc.find_library('aio', has_headers: ['libaio.h'],
563                           required: get_option('linux_aio'),
564                           kwargs: static_kwargs)
565endif
566
567linux_io_uring_test = '''
568  #include <liburing.h>
569  #include <linux/errqueue.h>
570
571  int main(void) { return 0; }'''
572
573linux_io_uring = not_found
574if not get_option('linux_io_uring').auto() or have_block
575  linux_io_uring = dependency('liburing', version: '>=0.3',
576                              required: get_option('linux_io_uring'),
577                              method: 'pkg-config', kwargs: static_kwargs)
578  if not cc.links(linux_io_uring_test)
579    linux_io_uring = not_found
580  endif
581endif
582
583libnfs = not_found
584if not get_option('libnfs').auto() or have_block
585  libnfs = dependency('libnfs', version: '>=1.9.3',
586                      required: get_option('libnfs'),
587                      method: 'pkg-config', kwargs: static_kwargs)
588endif
589
590libattr_test = '''
591  #include <stddef.h>
592  #include <sys/types.h>
593  #ifdef CONFIG_LIBATTR
594  #include <attr/xattr.h>
595  #else
596  #include <sys/xattr.h>
597  #endif
598  int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
599
600libattr = not_found
601have_old_libattr = false
602if get_option('attr').allowed()
603  if cc.links(libattr_test)
604    libattr = declare_dependency()
605  else
606    libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
607                              required: get_option('attr'),
608                              kwargs: static_kwargs)
609    if libattr.found() and not \
610      cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
611      libattr = not_found
612      if get_option('attr').enabled()
613        error('could not link libattr')
614      else
615        warning('could not link libattr, disabling')
616      endif
617    else
618      have_old_libattr = libattr.found()
619    endif
620  endif
621endif
622
623cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
624                   required: get_option('cocoa'))
625
626vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
627if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
628                                              'VMNET_BRIDGED_MODE',
629                                              dependencies: vmnet)
630  vmnet = not_found
631  if get_option('vmnet').enabled()
632    error('vmnet.framework API is outdated')
633  else
634    warning('vmnet.framework API is outdated, disabling')
635  endif
636endif
637
638seccomp = not_found
639seccomp_has_sysrawrc = false
640if not get_option('seccomp').auto() or have_system or have_tools
641  seccomp = dependency('libseccomp', version: '>=2.3.0',
642                       required: get_option('seccomp'),
643                       method: 'pkg-config', kwargs: static_kwargs)
644  if seccomp.found()
645    seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
646                                                'SCMP_FLTATR_API_SYSRAWRC',
647                                                dependencies: seccomp)
648  endif
649endif
650
651libcap_ng = not_found
652if not get_option('cap_ng').auto() or have_system or have_tools
653  libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
654                              required: get_option('cap_ng'),
655                              kwargs: static_kwargs)
656endif
657if libcap_ng.found() and not cc.links('''
658   #include <cap-ng.h>
659   int main(void)
660   {
661     capng_capability_to_name(CAPNG_EFFECTIVE);
662     return 0;
663   }''', dependencies: libcap_ng)
664  libcap_ng = not_found
665  if get_option('cap_ng').enabled()
666    error('could not link libcap-ng')
667  else
668    warning('could not link libcap-ng, disabling')
669  endif
670endif
671
672if get_option('xkbcommon').auto() and not have_system and not have_tools
673  xkbcommon = not_found
674else
675  xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
676                         method: 'pkg-config', kwargs: static_kwargs)
677endif
678
679slirp = not_found
680if not get_option('slirp').auto() or have_system
681  slirp = dependency('slirp', required: get_option('slirp'),
682                     method: 'pkg-config', kwargs: static_kwargs)
683  # slirp < 4.7 is incompatible with CFI support in QEMU.  This is because
684  # it passes function pointers within libslirp as callbacks for timers.
685  # When using a system-wide shared libslirp, the type information for the
686  # callback is missing and the timer call produces a false positive with CFI.
687  # Do not use the "version" keyword argument to produce a better error.
688  # with control-flow integrity.
689  if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
690    if get_option('slirp').enabled()
691      error('Control-Flow Integrity requires libslirp 4.7.')
692    else
693      warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
694      slirp = not_found
695    endif
696  endif
697endif
698
699vde = not_found
700if not get_option('vde').auto() or have_system or have_tools
701  vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
702                           required: get_option('vde'),
703                           kwargs: static_kwargs)
704endif
705if vde.found() and not cc.links('''
706   #include <libvdeplug.h>
707   int main(void)
708   {
709     struct vde_open_args a = {0, 0, 0};
710     char s[] = "";
711     vde_open(s, s, &a);
712     return 0;
713   }''', dependencies: vde)
714  vde = not_found
715  if get_option('cap_ng').enabled()
716    error('could not link libvdeplug')
717  else
718    warning('could not link libvdeplug, disabling')
719  endif
720endif
721
722pulse = not_found
723if not get_option('pa').auto() or (targetos == 'linux' and have_system)
724  pulse = dependency('libpulse', required: get_option('pa'),
725                     method: 'pkg-config', kwargs: static_kwargs)
726endif
727alsa = not_found
728if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
729  alsa = dependency('alsa', required: get_option('alsa'),
730                    method: 'pkg-config', kwargs: static_kwargs)
731endif
732jack = not_found
733if not get_option('jack').auto() or have_system
734  jack = dependency('jack', required: get_option('jack'),
735                    method: 'pkg-config', kwargs: static_kwargs)
736endif
737sndio = not_found
738if not get_option('sndio').auto() or have_system
739  sndio = dependency('sndio', required: get_option('sndio'),
740                    method: 'pkg-config', kwargs: static_kwargs)
741endif
742
743spice_protocol = not_found
744if not get_option('spice_protocol').auto() or have_system
745  spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
746                              required: get_option('spice_protocol'),
747                              method: 'pkg-config', kwargs: static_kwargs)
748endif
749spice = not_found
750if not get_option('spice').auto() or have_system
751  spice = dependency('spice-server', version: '>=0.14.0',
752                     required: get_option('spice'),
753                     method: 'pkg-config', kwargs: static_kwargs)
754endif
755spice_headers = spice.partial_dependency(compile_args: true, includes: true)
756
757rt = cc.find_library('rt', required: false)
758
759libiscsi = not_found
760if not get_option('libiscsi').auto() or have_block
761  libiscsi = dependency('libiscsi', version: '>=1.9.0',
762                         required: get_option('libiscsi'),
763                         method: 'pkg-config', kwargs: static_kwargs)
764endif
765zstd = not_found
766if not get_option('zstd').auto() or have_block
767  zstd = dependency('libzstd', version: '>=1.4.0',
768                    required: get_option('zstd'),
769                    method: 'pkg-config', kwargs: static_kwargs)
770endif
771virgl = not_found
772
773have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
774if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
775  virgl = dependency('virglrenderer',
776                     method: 'pkg-config',
777                     required: get_option('virglrenderer'),
778                     kwargs: static_kwargs)
779endif
780blkio = not_found
781if not get_option('blkio').auto() or have_block
782  blkio = dependency('blkio',
783                     method: 'pkg-config',
784                     required: get_option('blkio'),
785                     kwargs: static_kwargs)
786endif
787curl = not_found
788if not get_option('curl').auto() or have_block
789  curl = dependency('libcurl', version: '>=7.29.0',
790                    method: 'pkg-config',
791                    required: get_option('curl'),
792                    kwargs: static_kwargs)
793endif
794libudev = not_found
795if targetos == 'linux' and (have_system or have_tools)
796  libudev = dependency('libudev',
797                       method: 'pkg-config',
798                       required: get_option('libudev'),
799                       kwargs: static_kwargs)
800endif
801
802mpathlibs = [libudev]
803mpathpersist = not_found
804mpathpersist_new_api = false
805if targetos == 'linux' and have_tools and get_option('mpath').allowed()
806  mpath_test_source_new = '''
807    #include <libudev.h>
808    #include <mpath_persist.h>
809    unsigned mpath_mx_alloc_len = 1024;
810    int logsink;
811    static struct config *multipath_conf;
812    extern struct udev *udev;
813    extern struct config *get_multipath_config(void);
814    extern void put_multipath_config(struct config *conf);
815    struct udev *udev;
816    struct config *get_multipath_config(void) { return multipath_conf; }
817    void put_multipath_config(struct config *conf) { }
818    int main(void) {
819        udev = udev_new();
820        multipath_conf = mpath_lib_init();
821        return 0;
822    }'''
823  mpath_test_source_old = '''
824      #include <libudev.h>
825      #include <mpath_persist.h>
826      unsigned mpath_mx_alloc_len = 1024;
827      int logsink;
828      int main(void) {
829          struct udev *udev = udev_new();
830          mpath_lib_init(udev);
831          return 0;
832      }'''
833  libmpathpersist = cc.find_library('mpathpersist',
834                                    required: get_option('mpath'),
835                                    kwargs: static_kwargs)
836  if libmpathpersist.found()
837    mpathlibs += libmpathpersist
838    if enable_static
839      mpathlibs += cc.find_library('devmapper',
840                                     required: get_option('mpath'),
841                                     kwargs: static_kwargs)
842    endif
843    mpathlibs += cc.find_library('multipath',
844                                 required: get_option('mpath'),
845                                 kwargs: static_kwargs)
846    foreach lib: mpathlibs
847      if not lib.found()
848        mpathlibs = []
849        break
850      endif
851    endforeach
852    if mpathlibs.length() == 0
853      msg = 'Dependencies missing for libmpathpersist'
854    elif cc.links(mpath_test_source_new, dependencies: mpathlibs)
855      mpathpersist = declare_dependency(dependencies: mpathlibs)
856      mpathpersist_new_api = true
857    elif cc.links(mpath_test_source_old, dependencies: mpathlibs)
858      mpathpersist = declare_dependency(dependencies: mpathlibs)
859    else
860      msg = 'Cannot detect libmpathpersist API'
861    endif
862    if not mpathpersist.found()
863      if get_option('mpath').enabled()
864        error(msg)
865      else
866        warning(msg + ', disabling')
867      endif
868    endif
869  endif
870endif
871
872iconv = not_found
873curses = not_found
874if have_system and get_option('curses').allowed()
875  curses_test = '''
876    #if defined(__APPLE__) || defined(__OpenBSD__)
877    #define _XOPEN_SOURCE_EXTENDED 1
878    #endif
879    #include <locale.h>
880    #include <curses.h>
881    #include <wchar.h>
882    int main(void) {
883      wchar_t wch = L'w';
884      setlocale(LC_ALL, "");
885      resize_term(0, 0);
886      addwstr(L"wide chars\n");
887      addnwstr(&wch, 1);
888      add_wch(WACS_DEGREE);
889      return 0;
890    }'''
891
892  curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
893  curses = dependency(curses_dep_list,
894                      required: false,
895                      method: 'pkg-config',
896                      kwargs: static_kwargs)
897  msg = get_option('curses').enabled() ? 'curses library not found' : ''
898  curses_compile_args = ['-DNCURSES_WIDECHAR=1']
899  if curses.found()
900    if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
901      curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses])
902    else
903      msg = 'curses package not usable'
904      curses = not_found
905    endif
906  endif
907  if not curses.found()
908    has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
909    if targetos != 'windows' and not has_curses_h
910      message('Trying with /usr/include/ncursesw')
911      curses_compile_args += ['-I/usr/include/ncursesw']
912      has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
913    endif
914    if has_curses_h
915      curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
916      foreach curses_libname : curses_libname_list
917        libcurses = cc.find_library(curses_libname,
918                                    required: false,
919                                    kwargs: static_kwargs)
920        if libcurses.found()
921          if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
922            curses = declare_dependency(compile_args: curses_compile_args,
923                                        dependencies: [libcurses])
924            break
925          else
926            msg = 'curses library not usable'
927          endif
928        endif
929      endforeach
930    endif
931  endif
932  if get_option('iconv').allowed()
933    foreach link_args : [ ['-liconv'], [] ]
934      # Programs will be linked with glib and this will bring in libiconv on FreeBSD.
935      # We need to use libiconv if available because mixing libiconv's headers with
936      # the system libc does not work.
937      # However, without adding glib to the dependencies -L/usr/local/lib will not be
938      # included in the command line and libiconv will not be found.
939      if cc.links('''
940        #include <iconv.h>
941        int main(void) {
942          iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
943          return conv != (iconv_t) -1;
944        }''', args: config_host['GLIB_CFLAGS'].split() + config_host['GLIB_LIBS'].split() + link_args)
945        iconv = declare_dependency(link_args: link_args, dependencies: glib)
946        break
947      endif
948    endforeach
949  endif
950  if curses.found() and not iconv.found()
951    if get_option('iconv').enabled()
952      error('iconv not available')
953    endif
954    msg = 'iconv required for curses UI but not available'
955    curses = not_found
956  endif
957  if not curses.found() and msg != ''
958    if get_option('curses').enabled()
959      error(msg)
960    else
961      warning(msg + ', disabling')
962    endif
963  endif
964endif
965
966brlapi = not_found
967if not get_option('brlapi').auto() or have_system
968  brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
969                         required: get_option('brlapi'),
970                         kwargs: static_kwargs)
971  if brlapi.found() and not cc.links('''
972     #include <brlapi.h>
973     #include <stddef.h>
974     int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
975    brlapi = not_found
976    if get_option('brlapi').enabled()
977      error('could not link brlapi')
978    else
979      warning('could not link brlapi, disabling')
980    endif
981  endif
982endif
983
984sdl = not_found
985if not get_option('sdl').auto() or have_system
986  sdl = dependency('sdl2', required: get_option('sdl'), kwargs: static_kwargs)
987  sdl_image = not_found
988endif
989if sdl.found()
990  # work around 2.0.8 bug
991  sdl = declare_dependency(compile_args: '-Wno-undef',
992                           dependencies: sdl)
993  sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
994                         method: 'pkg-config', kwargs: static_kwargs)
995else
996  if get_option('sdl_image').enabled()
997    error('sdl-image required, but SDL was @0@'.format(
998          get_option('sdl').disabled() ? 'disabled' : 'not found'))
999  endif
1000  sdl_image = not_found
1001endif
1002
1003rbd = not_found
1004if not get_option('rbd').auto() or have_block
1005  librados = cc.find_library('rados', required: get_option('rbd'),
1006                             kwargs: static_kwargs)
1007  librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
1008                           required: get_option('rbd'),
1009                           kwargs: static_kwargs)
1010  if librados.found() and librbd.found()
1011    if cc.links('''
1012      #include <stdio.h>
1013      #include <rbd/librbd.h>
1014      int main(void) {
1015        rados_t cluster;
1016        rados_create(&cluster, NULL);
1017        #if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
1018        #error
1019        #endif
1020        return 0;
1021      }''', dependencies: [librbd, librados])
1022      rbd = declare_dependency(dependencies: [librbd, librados])
1023    elif get_option('rbd').enabled()
1024      error('librbd >= 1.12.0 required')
1025    else
1026      warning('librbd >= 1.12.0 not found, disabling')
1027    endif
1028  endif
1029endif
1030
1031glusterfs = not_found
1032glusterfs_ftruncate_has_stat = false
1033glusterfs_iocb_has_stat = false
1034if not get_option('glusterfs').auto() or have_block
1035  glusterfs = dependency('glusterfs-api', version: '>=3',
1036                         required: get_option('glusterfs'),
1037                         method: 'pkg-config', kwargs: static_kwargs)
1038  if glusterfs.found()
1039    glusterfs_ftruncate_has_stat = cc.links('''
1040      #include <glusterfs/api/glfs.h>
1041
1042      int
1043      main(void)
1044      {
1045          /* new glfs_ftruncate() passes two additional args */
1046          return glfs_ftruncate(NULL, 0, NULL, NULL);
1047      }
1048    ''', dependencies: glusterfs)
1049    glusterfs_iocb_has_stat = cc.links('''
1050      #include <glusterfs/api/glfs.h>
1051
1052      /* new glfs_io_cbk() passes two additional glfs_stat structs */
1053      static void
1054      glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
1055      {}
1056
1057      int
1058      main(void)
1059      {
1060          glfs_io_cbk iocb = &glusterfs_iocb;
1061          iocb(NULL, 0 , NULL, NULL, NULL);
1062          return 0;
1063      }
1064    ''', dependencies: glusterfs)
1065  endif
1066endif
1067
1068libssh = not_found
1069if not get_option('libssh').auto() or have_block
1070  libssh = dependency('libssh', version: '>=0.8.7',
1071                    method: 'pkg-config',
1072                    required: get_option('libssh'),
1073                    kwargs: static_kwargs)
1074endif
1075
1076libbzip2 = not_found
1077if not get_option('bzip2').auto() or have_block
1078  libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
1079                             required: get_option('bzip2'),
1080                             kwargs: static_kwargs)
1081  if libbzip2.found() and not cc.links('''
1082     #include <bzlib.h>
1083     int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
1084    libbzip2 = not_found
1085    if get_option('bzip2').enabled()
1086      error('could not link libbzip2')
1087    else
1088      warning('could not link libbzip2, disabling')
1089    endif
1090  endif
1091endif
1092
1093liblzfse = not_found
1094if not get_option('lzfse').auto() or have_block
1095  liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
1096                             required: get_option('lzfse'),
1097                             kwargs: static_kwargs)
1098endif
1099if liblzfse.found() and not cc.links('''
1100   #include <lzfse.h>
1101   int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
1102  liblzfse = not_found
1103  if get_option('lzfse').enabled()
1104    error('could not link liblzfse')
1105  else
1106    warning('could not link liblzfse, disabling')
1107  endif
1108endif
1109
1110oss = not_found
1111if get_option('oss').allowed() and have_system
1112  if not cc.has_header('sys/soundcard.h')
1113    # not found
1114  elif targetos == 'netbsd'
1115    oss = cc.find_library('ossaudio', required: get_option('oss'),
1116                          kwargs: static_kwargs)
1117  else
1118    oss = declare_dependency()
1119  endif
1120
1121  if not oss.found()
1122    if get_option('oss').enabled()
1123      error('OSS not found')
1124    endif
1125  endif
1126endif
1127dsound = not_found
1128if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
1129  if cc.has_header('dsound.h')
1130    dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
1131  endif
1132
1133  if not dsound.found()
1134    if get_option('dsound').enabled()
1135      error('DirectSound not found')
1136    endif
1137  endif
1138endif
1139
1140coreaudio = not_found
1141if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
1142  coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
1143                         required: get_option('coreaudio'))
1144endif
1145
1146opengl = not_found
1147if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
1148  epoxy = dependency('epoxy', method: 'pkg-config',
1149                      required: get_option('opengl'), kwargs: static_kwargs)
1150  if cc.has_header('epoxy/egl.h', dependencies: epoxy)
1151    opengl = epoxy
1152  elif get_option('opengl').enabled()
1153    error('epoxy/egl.h not found')
1154  endif
1155endif
1156gbm = not_found
1157if (have_system or have_tools) and (virgl.found() or opengl.found())
1158  gbm = dependency('gbm', method: 'pkg-config', required: false,
1159                   kwargs: static_kwargs)
1160endif
1161have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
1162
1163gnutls = not_found
1164gnutls_crypto = not_found
1165if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
1166  # For general TLS support our min gnutls matches
1167  # that implied by our platform support matrix
1168  #
1169  # For the crypto backends, we look for a newer
1170  # gnutls:
1171  #
1172  #   Version 3.6.8  is needed to get XTS
1173  #   Version 3.6.13 is needed to get PBKDF
1174  #   Version 3.6.14 is needed to get HW accelerated XTS
1175  #
1176  # If newer enough gnutls isn't available, we can
1177  # still use a different crypto backend to satisfy
1178  # the platform support requirements
1179  gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
1180                             method: 'pkg-config',
1181                             required: false,
1182                             kwargs: static_kwargs)
1183  if gnutls_crypto.found()
1184    gnutls = gnutls_crypto
1185  else
1186    # Our min version if all we need is TLS
1187    gnutls = dependency('gnutls', version: '>=3.5.18',
1188                        method: 'pkg-config',
1189                        required: get_option('gnutls'),
1190                        kwargs: static_kwargs)
1191  endif
1192endif
1193
1194# We prefer use of gnutls for crypto, unless the options
1195# explicitly asked for nettle or gcrypt.
1196#
1197# If gnutls isn't available for crypto, then we'll prefer
1198# gcrypt over nettle for performance reasons.
1199gcrypt = not_found
1200nettle = not_found
1201hogweed = not_found
1202xts = 'none'
1203
1204if get_option('nettle').enabled() and get_option('gcrypt').enabled()
1205  error('Only one of gcrypt & nettle can be enabled')
1206endif
1207
1208# Explicit nettle/gcrypt request, so ignore gnutls for crypto
1209if get_option('nettle').enabled() or get_option('gcrypt').enabled()
1210  gnutls_crypto = not_found
1211endif
1212
1213if not gnutls_crypto.found()
1214  if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
1215    gcrypt = dependency('libgcrypt', version: '>=1.8',
1216                        method: 'config-tool',
1217                        required: get_option('gcrypt'),
1218                        kwargs: static_kwargs)
1219    # Debian has removed -lgpg-error from libgcrypt-config
1220    # as it "spreads unnecessary dependencies" which in
1221    # turn breaks static builds...
1222    if gcrypt.found() and enable_static
1223      gcrypt = declare_dependency(dependencies: [
1224        gcrypt,
1225        cc.find_library('gpg-error', required: true, kwargs: static_kwargs)])
1226    endif
1227  endif
1228  if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
1229    nettle = dependency('nettle', version: '>=3.4',
1230                        method: 'pkg-config',
1231                        required: get_option('nettle'),
1232                        kwargs: static_kwargs)
1233    if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
1234      xts = 'private'
1235    endif
1236  endif
1237endif
1238
1239gmp = dependency('gmp', required: false, method: 'pkg-config', kwargs: static_kwargs)
1240if nettle.found() and gmp.found()
1241  hogweed = dependency('hogweed', version: '>=3.4',
1242                       method: 'pkg-config',
1243                       required: get_option('nettle'),
1244                       kwargs: static_kwargs)
1245endif
1246
1247
1248gtk = not_found
1249gtkx11 = not_found
1250vte = not_found
1251have_gtk_clipboard = get_option('gtk_clipboard').enabled()
1252
1253if not get_option('gtk').auto() or have_system
1254  gtk = dependency('gtk+-3.0', version: '>=3.22.0',
1255                   method: 'pkg-config',
1256                   required: get_option('gtk'),
1257                   kwargs: static_kwargs)
1258  if gtk.found()
1259    gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
1260                        method: 'pkg-config',
1261                        required: false,
1262                        kwargs: static_kwargs)
1263    gtk = declare_dependency(dependencies: [gtk, gtkx11])
1264
1265    if not get_option('vte').auto() or have_system
1266      vte = dependency('vte-2.91',
1267                       method: 'pkg-config',
1268                       required: get_option('vte'),
1269                       kwargs: static_kwargs)
1270    endif
1271  elif have_gtk_clipboard
1272    error('GTK clipboard requested, but GTK not found')
1273  endif
1274endif
1275
1276x11 = not_found
1277if gtkx11.found()
1278  x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found(),
1279                   kwargs: static_kwargs)
1280endif
1281png = not_found
1282if get_option('png').allowed() and have_system
1283   png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
1284                    method: 'pkg-config', kwargs: static_kwargs)
1285endif
1286vnc = not_found
1287jpeg = not_found
1288sasl = not_found
1289if get_option('vnc').allowed() and have_system
1290  vnc = declare_dependency() # dummy dependency
1291  jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
1292                    method: 'pkg-config', kwargs: static_kwargs)
1293  sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
1294                         required: get_option('vnc_sasl'),
1295                         kwargs: static_kwargs)
1296  if sasl.found()
1297    sasl = declare_dependency(dependencies: sasl,
1298                              compile_args: '-DSTRUCT_IOVEC_DEFINED')
1299  endif
1300endif
1301
1302pam = not_found
1303if not get_option('auth_pam').auto() or have_system
1304  pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
1305                        required: get_option('auth_pam'),
1306                        kwargs: static_kwargs)
1307endif
1308if pam.found() and not cc.links('''
1309   #include <stddef.h>
1310   #include <security/pam_appl.h>
1311   int main(void) {
1312     const char *service_name = "qemu";
1313     const char *user = "frank";
1314     const struct pam_conv pam_conv = { 0 };
1315     pam_handle_t *pamh = NULL;
1316     pam_start(service_name, user, &pam_conv, &pamh);
1317     return 0;
1318   }''', dependencies: pam)
1319  pam = not_found
1320  if get_option('auth_pam').enabled()
1321    error('could not link libpam')
1322  else
1323    warning('could not link libpam, disabling')
1324  endif
1325endif
1326
1327snappy = not_found
1328if not get_option('snappy').auto() or have_system
1329  snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
1330                           required: get_option('snappy'),
1331                           kwargs: static_kwargs)
1332endif
1333if snappy.found() and not linker.links('''
1334   #include <snappy-c.h>
1335   int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
1336  snappy = not_found
1337  if get_option('snappy').enabled()
1338    error('could not link libsnappy')
1339  else
1340    warning('could not link libsnappy, disabling')
1341  endif
1342endif
1343
1344lzo = not_found
1345if not get_option('lzo').auto() or have_system
1346  lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
1347                        required: get_option('lzo'),
1348                        kwargs: static_kwargs)
1349endif
1350if lzo.found() and not cc.links('''
1351   #include <lzo/lzo1x.h>
1352   int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
1353  lzo = not_found
1354  if get_option('lzo').enabled()
1355    error('could not link liblzo2')
1356  else
1357    warning('could not link liblzo2, disabling')
1358  endif
1359endif
1360
1361numa = not_found
1362if not get_option('numa').auto() or have_system or have_tools
1363  numa = cc.find_library('numa', has_headers: ['numa.h'],
1364                              required: get_option('numa'),
1365                              kwargs: static_kwargs)
1366endif
1367if numa.found() and not cc.links('''
1368   #include <numa.h>
1369   int main(void) { return numa_available(); }
1370   ''', dependencies: numa)
1371  numa = not_found
1372  if get_option('numa').enabled()
1373    error('could not link numa')
1374  else
1375    warning('could not link numa, disabling')
1376  endif
1377endif
1378
1379rdma = not_found
1380if not get_option('rdma').auto() or have_system
1381  libumad = cc.find_library('ibumad', required: get_option('rdma'))
1382  rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
1383                               required: get_option('rdma'),
1384                               kwargs: static_kwargs),
1385               cc.find_library('ibverbs', required: get_option('rdma'),
1386                               kwargs: static_kwargs),
1387               libumad]
1388  rdma = declare_dependency(dependencies: rdma_libs)
1389  foreach lib: rdma_libs
1390    if not lib.found()
1391      rdma = not_found
1392    endif
1393  endforeach
1394endif
1395
1396xen = not_found
1397if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
1398  xencontrol = dependency('xencontrol', required: false,
1399                          method: 'pkg-config', kwargs: static_kwargs)
1400  if xencontrol.found()
1401    xen_pc = declare_dependency(version: xencontrol.version(),
1402      dependencies: [
1403        xencontrol,
1404        # disabler: true makes xen_pc.found() return false if any is not found
1405        dependency('xenstore', required: false,
1406                   method: 'pkg-config', kwargs: static_kwargs,
1407                   disabler: true),
1408        dependency('xenforeignmemory', required: false,
1409                   method: 'pkg-config', kwargs: static_kwargs,
1410                   disabler: true),
1411        dependency('xengnttab', required: false,
1412                   method: 'pkg-config', kwargs: static_kwargs,
1413                   disabler: true),
1414        dependency('xenevtchn', required: false,
1415                   method: 'pkg-config', kwargs: static_kwargs,
1416                   disabler: true),
1417        dependency('xendevicemodel', required: false,
1418                   method: 'pkg-config', kwargs: static_kwargs,
1419                   disabler: true),
1420        # optional, no "disabler: true"
1421        dependency('xentoolcore', required: false,
1422                   method: 'pkg-config', kwargs: static_kwargs)])
1423    if xen_pc.found()
1424      xen = xen_pc
1425    endif
1426  endif
1427  if not xen.found()
1428    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' ]
1429    xen_libs = {
1430      '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1431      '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
1432      '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1433      '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1434      '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
1435      '4.6.0': [ 'xenstore', 'xenctrl' ],
1436      '4.5.0': [ 'xenstore', 'xenctrl' ],
1437      '4.2.0': [ 'xenstore', 'xenctrl' ],
1438    }
1439    xen_deps = {}
1440    foreach ver: xen_tests
1441      # cache the various library tests to avoid polluting the logs
1442      xen_test_deps = []
1443      foreach l: xen_libs[ver]
1444        if l not in xen_deps
1445          xen_deps += { l: cc.find_library(l, required: false) }
1446        endif
1447        xen_test_deps += xen_deps[l]
1448      endforeach
1449
1450      # Use -D to pick just one of the test programs in scripts/xen-detect.c
1451      xen_version = ver.split('.')
1452      xen_ctrl_version = xen_version[0] + \
1453        ('0' + xen_version[1]).substring(-2) + \
1454        ('0' + xen_version[2]).substring(-2)
1455      if cc.links(files('scripts/xen-detect.c'),
1456                  args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
1457                  dependencies: xen_test_deps)
1458        xen = declare_dependency(version: ver, dependencies: xen_test_deps)
1459        break
1460      endif
1461    endforeach
1462  endif
1463  if xen.found()
1464    accelerators += 'CONFIG_XEN'
1465  elif get_option('xen').enabled()
1466    error('could not compile and link Xen test program')
1467  endif
1468endif
1469have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
1470  .require(xen.found(),
1471           error_message: 'Xen PCI passthrough requested but Xen not enabled') \
1472  .require(targetos == 'linux',
1473           error_message: 'Xen PCI passthrough not available on this platform') \
1474  .allowed()
1475
1476
1477cacard = not_found
1478if not get_option('smartcard').auto() or have_system
1479  cacard = dependency('libcacard', required: get_option('smartcard'),
1480                      version: '>=2.5.1', method: 'pkg-config',
1481                      kwargs: static_kwargs)
1482endif
1483u2f = not_found
1484if have_system
1485  u2f = dependency('u2f-emu', required: get_option('u2f'),
1486                   method: 'pkg-config',
1487                   kwargs: static_kwargs)
1488endif
1489canokey = not_found
1490if have_system
1491  canokey = dependency('canokey-qemu', required: get_option('canokey'),
1492                   method: 'pkg-config',
1493                   kwargs: static_kwargs)
1494endif
1495usbredir = not_found
1496if not get_option('usb_redir').auto() or have_system
1497  usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
1498                        version: '>=0.6', method: 'pkg-config',
1499                        kwargs: static_kwargs)
1500endif
1501libusb = not_found
1502if not get_option('libusb').auto() or have_system
1503  libusb = dependency('libusb-1.0', required: get_option('libusb'),
1504                      version: '>=1.0.13', method: 'pkg-config',
1505                      kwargs: static_kwargs)
1506endif
1507
1508libpmem = not_found
1509if not get_option('libpmem').auto() or have_system
1510  libpmem = dependency('libpmem', required: get_option('libpmem'),
1511                       method: 'pkg-config', kwargs: static_kwargs)
1512endif
1513libdaxctl = not_found
1514if not get_option('libdaxctl').auto() or have_system
1515  libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
1516                         version: '>=57', method: 'pkg-config',
1517                         kwargs: static_kwargs)
1518endif
1519tasn1 = not_found
1520if gnutls.found()
1521  tasn1 = dependency('libtasn1',
1522                     method: 'pkg-config',
1523                     kwargs: static_kwargs)
1524endif
1525keyutils = dependency('libkeyutils', required: false,
1526                      method: 'pkg-config', kwargs: static_kwargs)
1527
1528has_gettid = cc.has_function('gettid')
1529
1530# libselinux
1531selinux = dependency('libselinux',
1532                     required: get_option('selinux'),
1533                     method: 'pkg-config', kwargs: static_kwargs)
1534
1535# Malloc tests
1536
1537malloc = []
1538if get_option('malloc') == 'system'
1539  has_malloc_trim = \
1540    get_option('malloc_trim').allowed() and \
1541    cc.links('''#include <malloc.h>
1542                int main(void) { malloc_trim(0); return 0; }''')
1543else
1544  has_malloc_trim = false
1545  malloc = cc.find_library(get_option('malloc'), required: true)
1546endif
1547if not has_malloc_trim and get_option('malloc_trim').enabled()
1548  if get_option('malloc') == 'system'
1549    error('malloc_trim not available on this platform.')
1550  else
1551    error('malloc_trim not available with non-libc memory allocator')
1552  endif
1553endif
1554
1555# Check whether the glibc provides statx()
1556
1557gnu_source_prefix = '''
1558  #ifndef _GNU_SOURCE
1559  #define _GNU_SOURCE
1560  #endif
1561'''
1562statx_test = gnu_source_prefix + '''
1563  #include <sys/stat.h>
1564  int main(void) {
1565    struct statx statxbuf;
1566    statx(0, "", 0, STATX_BASIC_STATS, &statxbuf);
1567    return 0;
1568  }'''
1569
1570has_statx = cc.links(statx_test)
1571
1572# Check whether statx() provides mount ID information
1573
1574statx_mnt_id_test = gnu_source_prefix + '''
1575  #include <sys/stat.h>
1576  int main(void) {
1577    struct statx statxbuf;
1578    statx(0, "", 0, STATX_BASIC_STATS | STATX_MNT_ID, &statxbuf);
1579    return statxbuf.stx_mnt_id;
1580  }'''
1581
1582has_statx_mnt_id = cc.links(statx_mnt_id_test)
1583
1584have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
1585  .require(targetos == 'linux',
1586           error_message: 'vhost_user_blk_server requires linux') \
1587  .require(have_vhost_user,
1588           error_message: 'vhost_user_blk_server requires vhost-user support') \
1589  .disable_auto_if(not have_tools and not have_system) \
1590  .allowed()
1591
1592if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
1593  error('Cannot enable fuse-lseek while fuse is disabled')
1594endif
1595
1596fuse = dependency('fuse3', required: get_option('fuse'),
1597                  version: '>=3.1', method: 'pkg-config',
1598                  kwargs: static_kwargs)
1599
1600fuse_lseek = not_found
1601if get_option('fuse_lseek').allowed()
1602  if fuse.version().version_compare('>=3.8')
1603    # Dummy dependency
1604    fuse_lseek = declare_dependency()
1605  elif get_option('fuse_lseek').enabled()
1606    if fuse.found()
1607      error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
1608    else
1609      error('fuse-lseek requires libfuse, which was not found')
1610    endif
1611  endif
1612endif
1613
1614have_libvduse = (targetos == 'linux')
1615if get_option('libvduse').enabled()
1616    if targetos != 'linux'
1617        error('libvduse requires linux')
1618    endif
1619elif get_option('libvduse').disabled()
1620    have_libvduse = false
1621endif
1622
1623have_vduse_blk_export = (have_libvduse and targetos == 'linux')
1624if get_option('vduse_blk_export').enabled()
1625    if targetos != 'linux'
1626        error('vduse_blk_export requires linux')
1627    elif not have_libvduse
1628        error('vduse_blk_export requires libvduse support')
1629    endif
1630elif get_option('vduse_blk_export').disabled()
1631    have_vduse_blk_export = false
1632endif
1633
1634# libbpf
1635libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
1636if libbpf.found() and not cc.links('''
1637   #include <bpf/libbpf.h>
1638   int main(void)
1639   {
1640     bpf_object__destroy_skeleton(NULL);
1641     return 0;
1642   }''', dependencies: libbpf)
1643  libbpf = not_found
1644  if get_option('bpf').enabled()
1645    error('libbpf skeleton test failed')
1646  else
1647    warning('libbpf skeleton test failed, disabling')
1648  endif
1649endif
1650
1651# libdw
1652libdw = dependency('libdw',
1653                   method: 'pkg-config',
1654                   kwargs: static_kwargs,
1655                   required: false)
1656
1657#################
1658# config-host.h #
1659#################
1660
1661audio_drivers_selected = []
1662if have_system
1663  audio_drivers_available = {
1664    'alsa': alsa.found(),
1665    'coreaudio': coreaudio.found(),
1666    'dsound': dsound.found(),
1667    'jack': jack.found(),
1668    'oss': oss.found(),
1669    'pa': pulse.found(),
1670    'sdl': sdl.found(),
1671    'sndio': sndio.found(),
1672  }
1673  foreach k, v: audio_drivers_available
1674    config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
1675  endforeach
1676
1677  # Default to native drivers first, OSS second, SDL third
1678  audio_drivers_priority = \
1679    [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
1680    (targetos == 'linux' ? [] : [ 'sdl' ])
1681  audio_drivers_default = []
1682  foreach k: audio_drivers_priority
1683    if audio_drivers_available[k]
1684      audio_drivers_default += k
1685    endif
1686  endforeach
1687
1688  foreach k: get_option('audio_drv_list')
1689    if k == 'default'
1690      audio_drivers_selected += audio_drivers_default
1691    elif not audio_drivers_available[k]
1692      error('Audio driver "@0@" not available.'.format(k))
1693    else
1694      audio_drivers_selected += k
1695    endif
1696  endforeach
1697endif
1698config_host_data.set('CONFIG_AUDIO_DRIVERS',
1699                     '"' + '", "'.join(audio_drivers_selected) + '", ')
1700
1701if get_option('cfi')
1702  cfi_flags=[]
1703  # Check for dependency on LTO
1704  if not get_option('b_lto')
1705    error('Selected Control-Flow Integrity but LTO is disabled')
1706  endif
1707  if config_host.has_key('CONFIG_MODULES')
1708    error('Selected Control-Flow Integrity is not compatible with modules')
1709  endif
1710  # Check for cfi flags. CFI requires LTO so we can't use
1711  # get_supported_arguments, but need a more complex "compiles" which allows
1712  # custom arguments
1713  if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
1714                 args: ['-flto', '-fsanitize=cfi-icall'] )
1715    cfi_flags += '-fsanitize=cfi-icall'
1716  else
1717    error('-fsanitize=cfi-icall is not supported by the compiler')
1718  endif
1719  if cc.compiles('int main () { return 0; }',
1720                 name: '-fsanitize-cfi-icall-generalize-pointers',
1721                 args: ['-flto', '-fsanitize=cfi-icall',
1722                        '-fsanitize-cfi-icall-generalize-pointers'] )
1723    cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
1724  else
1725    error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
1726  endif
1727  if get_option('cfi_debug')
1728    if cc.compiles('int main () { return 0; }',
1729                   name: '-fno-sanitize-trap=cfi-icall',
1730                   args: ['-flto', '-fsanitize=cfi-icall',
1731                          '-fno-sanitize-trap=cfi-icall'] )
1732      cfi_flags += '-fno-sanitize-trap=cfi-icall'
1733    else
1734      error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
1735    endif
1736  endif
1737  add_global_arguments(cfi_flags, native: false, language: all_languages)
1738  add_global_link_arguments(cfi_flags, native: false, language: all_languages)
1739endif
1740
1741have_host_block_device = (targetos != 'darwin' or
1742    cc.has_header('IOKit/storage/IOMedia.h'))
1743
1744dbus_display = get_option('dbus_display') \
1745  .require(gio.version().version_compare('>=2.64'),
1746           error_message: '-display dbus requires glib>=2.64') \
1747  .require(gdbus_codegen.found(),
1748           error_message: gdbus_codegen_error.format('-display dbus')) \
1749  .require(opengl.found() and gbm.found(),
1750           error_message: '-display dbus requires epoxy/egl and gbm') \
1751  .allowed()
1752
1753have_virtfs = get_option('virtfs') \
1754    .require(targetos == 'linux' or targetos == 'darwin',
1755             error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
1756    .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
1757             error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
1758    .require(targetos == 'darwin' or (libattr.found() and libcap_ng.found()),
1759             error_message: 'virtio-9p (virtfs) on Linux requires libcap-ng-devel and libattr-devel') \
1760    .disable_auto_if(not have_tools and not have_system) \
1761    .allowed()
1762
1763have_virtfs_proxy_helper = targetos != 'darwin' and have_virtfs and have_tools
1764
1765if get_option('block_drv_ro_whitelist') == ''
1766  config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
1767else
1768  config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
1769        '"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
1770endif
1771if get_option('block_drv_rw_whitelist') == ''
1772  config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
1773else
1774  config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
1775        '"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
1776endif
1777
1778foreach k : get_option('trace_backends')
1779  config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
1780endforeach
1781config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
1782config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
1783if iasl.found()
1784  config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
1785endif
1786config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
1787config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
1788config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
1789config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
1790config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
1791
1792qemu_firmwarepath = ''
1793foreach k : get_option('qemu_firmwarepath')
1794  qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
1795endforeach
1796config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
1797
1798config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
1799config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
1800config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
1801config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
1802config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
1803config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
1804
1805if config_host.has_key('CONFIG_MODULES')
1806  config_host_data.set('CONFIG_STAMP', run_command(
1807      meson.current_source_dir() / 'scripts/qemu-stamp.py',
1808      meson.project_version(), get_option('pkgversion'), '--',
1809      meson.current_source_dir() / 'configure',
1810      capture: true, check: true).stdout().strip())
1811endif
1812
1813have_slirp_smbd = get_option('slirp_smbd') \
1814  .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
1815  .allowed()
1816if have_slirp_smbd
1817  smbd_path = get_option('smbd')
1818  if smbd_path == ''
1819    smbd_path = (targetos == 'solaris' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
1820  endif
1821  config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
1822endif
1823
1824config_host_data.set('HOST_' + host_arch.to_upper(), 1)
1825
1826if get_option('module_upgrades') and not enable_modules
1827  error('Cannot enable module-upgrades as modules are not enabled')
1828endif
1829config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
1830
1831config_host_data.set('CONFIG_ATTR', libattr.found())
1832config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
1833config_host_data.set('CONFIG_BRLAPI', brlapi.found())
1834config_host_data.set('CONFIG_COCOA', cocoa.found())
1835config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
1836config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
1837config_host_data.set('CONFIG_LIBUDEV', libudev.found())
1838config_host_data.set('CONFIG_LZO', lzo.found())
1839config_host_data.set('CONFIG_MPATH', mpathpersist.found())
1840config_host_data.set('CONFIG_MPATH_NEW_API', mpathpersist_new_api)
1841config_host_data.set('CONFIG_BLKIO', blkio.found())
1842config_host_data.set('CONFIG_CURL', curl.found())
1843config_host_data.set('CONFIG_CURSES', curses.found())
1844config_host_data.set('CONFIG_GBM', gbm.found())
1845config_host_data.set('CONFIG_GIO', gio.found())
1846config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
1847if glusterfs.found()
1848  config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
1849  config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
1850  config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
1851  config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
1852  config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
1853  config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
1854endif
1855config_host_data.set('CONFIG_GTK', gtk.found())
1856config_host_data.set('CONFIG_VTE', vte.found())
1857config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
1858config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
1859config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
1860config_host_data.set('CONFIG_EBPF', libbpf.found())
1861config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
1862config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
1863config_host_data.set('CONFIG_LIBNFS', libnfs.found())
1864config_host_data.set('CONFIG_LIBSSH', libssh.found())
1865config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
1866config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
1867config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
1868config_host_data.set('CONFIG_NUMA', numa.found())
1869if numa.found()
1870  config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
1871                       cc.has_function('numa_has_preferred_many',
1872                                       dependencies: numa))
1873endif
1874config_host_data.set('CONFIG_OPENGL', opengl.found())
1875config_host_data.set('CONFIG_PROFILER', get_option('profiler'))
1876config_host_data.set('CONFIG_RBD', rbd.found())
1877config_host_data.set('CONFIG_RDMA', rdma.found())
1878config_host_data.set('CONFIG_SDL', sdl.found())
1879config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
1880config_host_data.set('CONFIG_SECCOMP', seccomp.found())
1881if seccomp.found()
1882  config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
1883endif
1884config_host_data.set('CONFIG_SNAPPY', snappy.found())
1885config_host_data.set('CONFIG_TPM', have_tpm)
1886config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
1887config_host_data.set('CONFIG_VDE', vde.found())
1888config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
1889config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
1890config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
1891config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
1892config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
1893config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
1894config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
1895config_host_data.set('CONFIG_VMNET', vmnet.found())
1896config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
1897config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
1898config_host_data.set('CONFIG_PNG', png.found())
1899config_host_data.set('CONFIG_VNC', vnc.found())
1900config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
1901config_host_data.set('CONFIG_VNC_SASL', sasl.found())
1902config_host_data.set('CONFIG_VIRTFS', have_virtfs)
1903config_host_data.set('CONFIG_VTE', vte.found())
1904config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
1905config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
1906config_host_data.set('CONFIG_GETTID', has_gettid)
1907config_host_data.set('CONFIG_GNUTLS', gnutls.found())
1908config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
1909config_host_data.set('CONFIG_TASN1', tasn1.found())
1910config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
1911config_host_data.set('CONFIG_NETTLE', nettle.found())
1912config_host_data.set('CONFIG_HOGWEED', hogweed.found())
1913config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
1914config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
1915config_host_data.set('CONFIG_STATX', has_statx)
1916config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
1917config_host_data.set('CONFIG_ZSTD', zstd.found())
1918config_host_data.set('CONFIG_FUSE', fuse.found())
1919config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
1920config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
1921if spice_protocol.found()
1922config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
1923config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
1924config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
1925endif
1926config_host_data.set('CONFIG_SPICE', spice.found())
1927config_host_data.set('CONFIG_X11', x11.found())
1928config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
1929config_host_data.set('CONFIG_CFI', get_option('cfi'))
1930config_host_data.set('CONFIG_SELINUX', selinux.found())
1931config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
1932config_host_data.set('CONFIG_LIBDW', libdw.found())
1933if xen.found()
1934  # protect from xen.version() having less than three components
1935  xen_version = xen.version().split('.') + ['0', '0']
1936  xen_ctrl_version = xen_version[0] + \
1937    ('0' + xen_version[1]).substring(-2) + \
1938    ('0' + xen_version[2]).substring(-2)
1939  config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
1940endif
1941config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
1942config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
1943config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
1944config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
1945
1946config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
1947config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
1948
1949have_coroutine_pool = get_option('coroutine_pool')
1950if get_option('debug_stack_usage') and have_coroutine_pool
1951  message('Disabling coroutine pool to measure stack usage')
1952  have_coroutine_pool = false
1953endif
1954config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
1955config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
1956config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
1957config_host_data.set('CONFIG_GPROF', get_option('gprof'))
1958config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
1959config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
1960config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
1961
1962# has_header
1963config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
1964config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
1965config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
1966config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
1967config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
1968config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
1969config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
1970config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
1971config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
1972if targetos == 'windows'
1973  config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
1974endif
1975
1976# has_function
1977config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
1978config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
1979config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
1980config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
1981config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
1982config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
1983# Note that we need to specify prefix: here to avoid incorrectly
1984# thinking that Windows has posix_memalign()
1985config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
1986config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
1987config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
1988config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
1989config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
1990config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
1991config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
1992config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
1993config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
1994config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
1995config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
1996config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
1997config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
1998config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
1999config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
2000config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
2001config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
2002if rbd.found()
2003  config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
2004                       cc.has_function('rbd_namespace_exists',
2005                                       dependencies: rbd,
2006                                       prefix: '#include <rbd/librbd.h>'))
2007endif
2008if rdma.found()
2009  config_host_data.set('HAVE_IBV_ADVISE_MR',
2010                       cc.has_function('ibv_advise_mr',
2011                                       dependencies: rdma,
2012                                       prefix: '#include <infiniband/verbs.h>'))
2013endif
2014
2015# has_header_symbol
2016config_host_data.set('CONFIG_BYTESWAP_H',
2017                     cc.has_header_symbol('byteswap.h', 'bswap_32'))
2018config_host_data.set('CONFIG_EPOLL_CREATE1',
2019                     cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
2020config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
2021                     cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
2022                     cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
2023config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
2024                     cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
2025config_host_data.set('CONFIG_FIEMAP',
2026                     cc.has_header('linux/fiemap.h') and
2027                     cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
2028config_host_data.set('CONFIG_GETRANDOM',
2029                     cc.has_function('getrandom') and
2030                     cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
2031config_host_data.set('CONFIG_INOTIFY',
2032                     cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
2033config_host_data.set('CONFIG_INOTIFY1',
2034                     cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
2035config_host_data.set('CONFIG_MACHINE_BSWAP_H',
2036                     cc.has_header_symbol('machine/bswap.h', 'bswap32',
2037                                          prefix: '''#include <sys/endian.h>
2038                                                     #include <sys/types.h>'''))
2039config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
2040                     cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
2041config_host_data.set('CONFIG_RTNETLINK',
2042                     cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
2043config_host_data.set('CONFIG_SYSMACROS',
2044                     cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
2045config_host_data.set('HAVE_OPTRESET',
2046                     cc.has_header_symbol('getopt.h', 'optreset'))
2047config_host_data.set('HAVE_IPPROTO_MPTCP',
2048                     cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
2049config_host_data.set('HAVE_SYS_MOUNT_FSCONFIG',
2050                     cc.has_header_symbol('sys/mount.h', 'FSCONFIG_SET_FLAG'))
2051
2052# has_member
2053config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
2054                     cc.has_member('struct sigevent', 'sigev_notify_thread_id',
2055                                   prefix: '#include <signal.h>'))
2056config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
2057                     cc.has_member('struct stat', 'st_atim',
2058                                   prefix: '#include <sys/stat.h>'))
2059
2060# has_type
2061config_host_data.set('CONFIG_IOVEC',
2062                     cc.has_type('struct iovec',
2063                                 prefix: '#include <sys/uio.h>'))
2064config_host_data.set('HAVE_UTMPX',
2065                     cc.has_type('struct utmpx',
2066                                 prefix: '#include <utmpx.h>'))
2067
2068config_host_data.set('CONFIG_EVENTFD', cc.links('''
2069  #include <sys/eventfd.h>
2070  int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
2071config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
2072  #include <unistd.h>
2073  int main(void) {
2074  #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
2075  return fdatasync(0);
2076  #else
2077  #error Not supported
2078  #endif
2079  }'''))
2080
2081has_madvise = cc.links(gnu_source_prefix + '''
2082  #include <sys/types.h>
2083  #include <sys/mman.h>
2084  #include <stddef.h>
2085  int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
2086missing_madvise_proto = false
2087if has_madvise
2088  # Some platforms (illumos and Solaris before Solaris 11) provide madvise()
2089  # but forget to prototype it. In this case, has_madvise will be true (the
2090  # test program links despite a compile warning). To detect the
2091  # missing-prototype case, we try again with a definitely-bogus prototype.
2092  # This will only compile if the system headers don't provide the prototype;
2093  # otherwise the conflicting prototypes will cause a compiler error.
2094  missing_madvise_proto = cc.links(gnu_source_prefix + '''
2095    #include <sys/types.h>
2096    #include <sys/mman.h>
2097    #include <stddef.h>
2098    extern int madvise(int);
2099    int main(void) { return madvise(0); }''')
2100endif
2101config_host_data.set('CONFIG_MADVISE', has_madvise)
2102config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
2103
2104config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
2105  #include <sys/mman.h>
2106  int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
2107config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
2108  #include <fcntl.h>
2109  #if !defined(AT_EMPTY_PATH)
2110  # error missing definition
2111  #else
2112  int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
2113  #endif'''))
2114config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
2115  #include <sys/mman.h>
2116  #include <stddef.h>
2117  int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
2118
2119config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
2120  #include <pthread.h>
2121
2122  static void *f(void *p) { return NULL; }
2123  int main(void)
2124  {
2125    pthread_t thread;
2126    pthread_create(&thread, 0, f, 0);
2127    pthread_setname_np(thread, "QEMU");
2128    return 0;
2129  }''', dependencies: threads))
2130config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
2131  #include <pthread.h>
2132
2133  static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
2134  int main(void)
2135  {
2136    pthread_t thread;
2137    pthread_create(&thread, 0, f, 0);
2138    return 0;
2139  }''', dependencies: threads))
2140config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
2141  #include <pthread.h>
2142  #include <time.h>
2143
2144  int main(void)
2145  {
2146    pthread_condattr_t attr
2147    pthread_condattr_init(&attr);
2148    pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2149    return 0;
2150  }''', dependencies: threads))
2151config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
2152  #include <pthread.h>
2153
2154  static void *f(void *p) { return NULL; }
2155  int main(void)
2156  {
2157    int setsize = CPU_ALLOC_SIZE(64);
2158    pthread_t thread;
2159    cpu_set_t *cpuset;
2160    pthread_create(&thread, 0, f, 0);
2161    cpuset = CPU_ALLOC(64);
2162    CPU_ZERO_S(setsize, cpuset);
2163    pthread_setaffinity_np(thread, setsize, cpuset);
2164    pthread_getaffinity_np(thread, setsize, cpuset);
2165    CPU_FREE(cpuset);
2166    return 0;
2167  }''', dependencies: threads))
2168config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
2169  #include <sys/signalfd.h>
2170  #include <stddef.h>
2171  int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
2172config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
2173  #include <unistd.h>
2174  #include <fcntl.h>
2175  #include <limits.h>
2176
2177  int main(void)
2178  {
2179    int len, fd = 0;
2180    len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
2181    splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
2182    return 0;
2183  }'''))
2184
2185config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
2186  #include <sys/mman.h>
2187  int main(void) {
2188    return mlockall(MCL_FUTURE);
2189  }'''))
2190
2191have_l2tpv3 = false
2192if get_option('l2tpv3').allowed() and have_system
2193  have_l2tpv3 = cc.has_type('struct mmsghdr',
2194    prefix: gnu_source_prefix + '''
2195      #include <sys/socket.h>
2196      #include <linux/ip.h>''')
2197endif
2198config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
2199
2200have_netmap = false
2201if get_option('netmap').allowed() and have_system
2202  have_netmap = cc.compiles('''
2203    #include <inttypes.h>
2204    #include <net/if.h>
2205    #include <net/netmap.h>
2206    #include <net/netmap_user.h>
2207    #if (NETMAP_API < 11) || (NETMAP_API > 15)
2208    #error
2209    #endif
2210    int main(void) { return 0; }''')
2211  if not have_netmap and get_option('netmap').enabled()
2212    error('Netmap headers not available')
2213  endif
2214endif
2215config_host_data.set('CONFIG_NETMAP', have_netmap)
2216
2217# Work around a system header bug with some kernel/XFS header
2218# versions where they both try to define 'struct fsxattr':
2219# xfs headers will not try to redefine structs from linux headers
2220# if this macro is set.
2221config_host_data.set('HAVE_FSXATTR', cc.links('''
2222  #include <linux/fs.h>
2223  struct fsxattr foo;
2224  int main(void) {
2225    return 0;
2226  }'''))
2227
2228# Some versions of Mac OS X incorrectly define SIZE_MAX
2229config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
2230    #include <stdint.h>
2231    #include <stdio.h>
2232    int main(void) {
2233        return printf("%zu", SIZE_MAX);
2234    }''', args: ['-Werror']))
2235
2236atomic_test = '''
2237  #include <stdint.h>
2238  int main(void)
2239  {
2240    @0@ x = 0, y = 0;
2241    y = __atomic_load_n(&x, __ATOMIC_RELAXED);
2242    __atomic_store_n(&x, y, __ATOMIC_RELAXED);
2243    __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
2244    __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
2245    __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
2246    return 0;
2247  }'''
2248
2249# See if 64-bit atomic operations are supported.
2250# Note that without __atomic builtins, we can only
2251# assume atomic loads/stores max at pointer size.
2252config_host_data.set('CONFIG_ATOMIC64', cc.links(atomic_test.format('uint64_t')))
2253
2254has_int128 = cc.links('''
2255  __int128_t a;
2256  __uint128_t b;
2257  int main (void) {
2258    a = a + b;
2259    b = a * b;
2260    a = a * a;
2261    return 0;
2262  }''')
2263
2264config_host_data.set('CONFIG_INT128', has_int128)
2265
2266if has_int128
2267  # "do we have 128-bit atomics which are handled inline and specifically not
2268  # via libatomic". The reason we can't use libatomic is documented in the
2269  # comment starting "GCC is a house divided" in include/qemu/atomic128.h.
2270  has_atomic128 = cc.links(atomic_test.format('unsigned __int128'))
2271
2272  config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
2273
2274  if not has_atomic128
2275    has_cmpxchg128 = cc.links('''
2276      int main(void)
2277      {
2278        unsigned __int128 x = 0, y = 0;
2279        __sync_val_compare_and_swap_16(&x, y, x);
2280        return 0;
2281      }
2282    ''')
2283
2284    config_host_data.set('CONFIG_CMPXCHG128', has_cmpxchg128)
2285  endif
2286endif
2287
2288config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
2289  #include <sys/auxv.h>
2290  int main(void) {
2291    return getauxval(AT_HWCAP) == 0;
2292  }'''))
2293
2294config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
2295  #include <linux/usbdevice_fs.h>
2296
2297  #ifndef USBDEVFS_GET_CAPABILITIES
2298  #error "USBDEVFS_GET_CAPABILITIES undefined"
2299  #endif
2300
2301  #ifndef USBDEVFS_DISCONNECT_CLAIM
2302  #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2303  #endif
2304
2305  int main(void) { return 0; }'''))
2306
2307have_keyring = get_option('keyring') \
2308  .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
2309  .require(cc.compiles('''
2310    #include <errno.h>
2311    #include <asm/unistd.h>
2312    #include <linux/keyctl.h>
2313    #include <sys/syscall.h>
2314    #include <unistd.h>
2315    int main(void) {
2316        return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2317    }'''), error_message: 'keyctl syscall not available on this system').allowed()
2318config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
2319
2320have_cpuid_h = cc.links('''
2321  #include <cpuid.h>
2322  int main(void) {
2323    unsigned a, b, c, d;
2324    unsigned max = __get_cpuid_max(0, 0);
2325
2326    if (max >= 1) {
2327        __cpuid(1, a, b, c, d);
2328    }
2329
2330    if (max >= 7) {
2331        __cpuid_count(7, 0, a, b, c, d);
2332    }
2333
2334    return 0;
2335  }''')
2336config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
2337
2338config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
2339  .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
2340  .require(cc.links('''
2341    #include <cpuid.h>
2342    #include <immintrin.h>
2343    static int __attribute__((target("avx2"))) bar(void *a) {
2344      __m256i x = *(__m256i *)a;
2345      return _mm256_testz_si256(x, x);
2346    }
2347    int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2348  '''), error_message: 'AVX2 not available').allowed())
2349
2350config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
2351  .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
2352  .require(cc.links('''
2353    #include <cpuid.h>
2354    #include <immintrin.h>
2355    static int __attribute__((target("avx512f"))) bar(void *a) {
2356      __m512i x = *(__m512i *)a;
2357      return _mm512_test_epi64_mask(x, x);
2358    }
2359    int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
2360  '''), error_message: 'AVX512F not available').allowed())
2361
2362have_pvrdma = get_option('pvrdma') \
2363  .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
2364  .require(cc.compiles(gnu_source_prefix + '''
2365    #include <sys/mman.h>
2366    int main(void)
2367    {
2368      char buf = 0;
2369      void *addr = &buf;
2370      addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2371
2372      return 0;
2373    }'''), error_message: 'PVRDMA requires mremap').allowed()
2374
2375if have_pvrdma
2376  config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
2377    #include <infiniband/verbs.h>
2378    int main(void)
2379    {
2380      struct ibv_mr *mr;
2381      struct ibv_pd *pd = NULL;
2382      size_t length = 10;
2383      uint64_t iova = 0;
2384      int access = 0;
2385      void *addr = NULL;
2386
2387      mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2388      ibv_dereg_mr(mr);
2389      return 0;
2390    }'''))
2391endif
2392
2393if get_option('membarrier').disabled()
2394  have_membarrier = false
2395elif targetos == 'windows'
2396  have_membarrier = true
2397elif targetos == 'linux'
2398  have_membarrier = cc.compiles('''
2399    #include <linux/membarrier.h>
2400    #include <sys/syscall.h>
2401    #include <unistd.h>
2402    #include <stdlib.h>
2403    int main(void) {
2404        syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2405        syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2406        exit(0);
2407    }''')
2408endif
2409config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
2410  .require(have_membarrier, error_message: 'membarrier system call not available') \
2411  .allowed())
2412
2413have_afalg = get_option('crypto_afalg') \
2414  .require(cc.compiles(gnu_source_prefix + '''
2415    #include <errno.h>
2416    #include <sys/types.h>
2417    #include <sys/socket.h>
2418    #include <linux/if_alg.h>
2419    int main(void) {
2420      int sock;
2421      sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2422      return sock;
2423    }
2424  '''), error_message: 'AF_ALG requested but could not be detected').allowed()
2425config_host_data.set('CONFIG_AF_ALG', have_afalg)
2426
2427config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
2428  'linux/vm_sockets.h', 'AF_VSOCK',
2429  prefix: '#include <sys/socket.h>',
2430))
2431
2432have_vss = false
2433have_vss_sdk = false # old xp/2003 SDK
2434if targetos == 'windows' and link_language == 'cpp'
2435  have_vss = cxx.compiles('''
2436    #define __MIDL_user_allocate_free_DEFINED__
2437    #include <vss.h>
2438    int main(void) { return VSS_CTX_BACKUP; }''')
2439  have_vss_sdk = cxx.has_header('vscoordint.h')
2440endif
2441config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
2442
2443foreach k, v: config_host
2444  if k.startswith('CONFIG_')
2445    config_host_data.set(k, v == 'y' ? 1 : v)
2446  endif
2447endforeach
2448
2449# Older versions of MinGW do not import _lock_file and _unlock_file properly.
2450# This was fixed for v6.0.0 with commit b48e3ac8969d.
2451if targetos == 'windows'
2452  config_host_data.set('HAVE__LOCK_FILE', cc.links('''
2453    #include <stdio.h>
2454    int main(void) {
2455      _lock_file(NULL);
2456      _unlock_file(NULL);
2457      return 0;
2458    }''', name: '_lock_file and _unlock_file'))
2459endif
2460
2461########################
2462# Target configuration #
2463########################
2464
2465minikconf = find_program('scripts/minikconf.py')
2466config_all = {}
2467config_all_devices = {}
2468config_all_disas = {}
2469config_devices_mak_list = []
2470config_devices_h = {}
2471config_target_h = {}
2472config_target_mak = {}
2473
2474disassemblers = {
2475  'alpha' : ['CONFIG_ALPHA_DIS'],
2476  'avr' : ['CONFIG_AVR_DIS'],
2477  'cris' : ['CONFIG_CRIS_DIS'],
2478  'hexagon' : ['CONFIG_HEXAGON_DIS'],
2479  'hppa' : ['CONFIG_HPPA_DIS'],
2480  'i386' : ['CONFIG_I386_DIS'],
2481  'x86_64' : ['CONFIG_I386_DIS'],
2482  'm68k' : ['CONFIG_M68K_DIS'],
2483  'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
2484  'mips' : ['CONFIG_MIPS_DIS'],
2485  'nios2' : ['CONFIG_NIOS2_DIS'],
2486  'or1k' : ['CONFIG_OPENRISC_DIS'],
2487  'ppc' : ['CONFIG_PPC_DIS'],
2488  'riscv' : ['CONFIG_RISCV_DIS'],
2489  'rx' : ['CONFIG_RX_DIS'],
2490  's390' : ['CONFIG_S390_DIS'],
2491  'sh4' : ['CONFIG_SH4_DIS'],
2492  'sparc' : ['CONFIG_SPARC_DIS'],
2493  'xtensa' : ['CONFIG_XTENSA_DIS'],
2494  'loongarch' : ['CONFIG_LOONGARCH_DIS'],
2495}
2496
2497have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
2498host_kconfig = \
2499  (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
2500  (have_tpm ? ['CONFIG_TPM=y'] : []) + \
2501  (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
2502  (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
2503  (opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
2504  (x11.found() ? ['CONFIG_X11=y'] : []) + \
2505  (have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
2506  (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
2507  (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
2508  (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
2509  ('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
2510  (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
2511  (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
2512  (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
2513
2514ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
2515
2516default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
2517actual_target_dirs = []
2518fdt_required = []
2519foreach target : target_dirs
2520  config_target = { 'TARGET_NAME': target.split('-')[0] }
2521  if target.endswith('linux-user')
2522    if targetos != 'linux'
2523      if default_targets
2524        continue
2525      endif
2526      error('Target @0@ is only available on a Linux host'.format(target))
2527    endif
2528    config_target += { 'CONFIG_LINUX_USER': 'y' }
2529  elif target.endswith('bsd-user')
2530    if 'CONFIG_BSD' not in config_host
2531      if default_targets
2532        continue
2533      endif
2534      error('Target @0@ is only available on a BSD host'.format(target))
2535    endif
2536    config_target += { 'CONFIG_BSD_USER': 'y' }
2537  elif target.endswith('softmmu')
2538    config_target += { 'CONFIG_SOFTMMU': 'y' }
2539  endif
2540  if target.endswith('-user')
2541    config_target += {
2542      'CONFIG_USER_ONLY': 'y',
2543      'CONFIG_QEMU_INTERP_PREFIX':
2544        get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
2545    }
2546  endif
2547
2548  accel_kconfig = []
2549  foreach sym: accelerators
2550    if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
2551      config_target += { sym: 'y' }
2552      config_all += { sym: 'y' }
2553      if target in modular_tcg
2554        config_target += { 'CONFIG_TCG_MODULAR': 'y' }
2555      else
2556        config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
2557      endif
2558      accel_kconfig += [ sym + '=y' ]
2559    endif
2560  endforeach
2561  if accel_kconfig.length() == 0
2562    if default_targets
2563      continue
2564    endif
2565    error('No accelerator available for target @0@'.format(target))
2566  endif
2567
2568  actual_target_dirs += target
2569  config_target += keyval.load('configs/targets' / target + '.mak')
2570  config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
2571
2572  if 'TARGET_NEED_FDT' in config_target
2573    fdt_required += target
2574  endif
2575
2576  # Add default keys
2577  if 'TARGET_BASE_ARCH' not in config_target
2578    config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
2579  endif
2580  if 'TARGET_ABI_DIR' not in config_target
2581    config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
2582  endif
2583  if 'TARGET_BIG_ENDIAN' not in config_target
2584    config_target += {'TARGET_BIG_ENDIAN': 'n'}
2585  endif
2586
2587  foreach k, v: disassemblers
2588    if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
2589      foreach sym: v
2590        config_target += { sym: 'y' }
2591        config_all_disas += { sym: 'y' }
2592      endforeach
2593    endif
2594  endforeach
2595
2596  config_target_data = configuration_data()
2597  foreach k, v: config_target
2598    if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
2599      # do nothing
2600    elif ignored.contains(k)
2601      # do nothing
2602    elif k == 'TARGET_BASE_ARCH'
2603      # Note that TARGET_BASE_ARCH ends up in config-target.h but it is
2604      # not used to select files from sourcesets.
2605      config_target_data.set('TARGET_' + v.to_upper(), 1)
2606    elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
2607      config_target_data.set_quoted(k, v)
2608    elif v == 'y'
2609      config_target_data.set(k, 1)
2610    elif v == 'n'
2611      config_target_data.set(k, 0)
2612    else
2613      config_target_data.set(k, v)
2614    endif
2615  endforeach
2616  config_target_data.set('QEMU_ARCH',
2617                         'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
2618  config_target_h += {target: configure_file(output: target + '-config-target.h',
2619                                               configuration: config_target_data)}
2620
2621  if target.endswith('-softmmu')
2622    config_input = meson.get_external_property(target, 'default')
2623    config_devices_mak = target + '-config-devices.mak'
2624    config_devices_mak = configure_file(
2625      input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
2626      output: config_devices_mak,
2627      depfile: config_devices_mak + '.d',
2628      capture: true,
2629      command: [minikconf,
2630                get_option('default_devices') ? '--defconfig' : '--allnoconfig',
2631                config_devices_mak, '@DEPFILE@', '@INPUT@',
2632                host_kconfig, accel_kconfig,
2633                'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
2634
2635    config_devices_data = configuration_data()
2636    config_devices = keyval.load(config_devices_mak)
2637    foreach k, v: config_devices
2638      config_devices_data.set(k, 1)
2639    endforeach
2640    config_devices_mak_list += config_devices_mak
2641    config_devices_h += {target: configure_file(output: target + '-config-devices.h',
2642                                                configuration: config_devices_data)}
2643    config_target += config_devices
2644    config_all_devices += config_devices
2645  endif
2646  config_target_mak += {target: config_target}
2647endforeach
2648target_dirs = actual_target_dirs
2649
2650# This configuration is used to build files that are shared by
2651# multiple binaries, and then extracted out of the "common"
2652# static_library target.
2653#
2654# We do not use all_sources()/all_dependencies(), because it would
2655# build literally all source files, including devices only used by
2656# targets that are not built for this compilation.  The CONFIG_ALL
2657# pseudo symbol replaces it.
2658
2659config_all += config_all_devices
2660config_all += config_host
2661config_all += config_all_disas
2662config_all += {
2663  'CONFIG_XEN': xen.found(),
2664  'CONFIG_SOFTMMU': have_system,
2665  'CONFIG_USER_ONLY': have_user,
2666  'CONFIG_ALL': true,
2667}
2668
2669target_configs_h = []
2670foreach target: target_dirs
2671  target_configs_h += config_target_h[target]
2672  target_configs_h += config_devices_h.get(target, [])
2673endforeach
2674genh += custom_target('config-poison.h',
2675                      input: [target_configs_h],
2676                      output: 'config-poison.h',
2677                      capture: true,
2678                      command: [find_program('scripts/make-config-poison.sh'),
2679                                target_configs_h])
2680
2681##############
2682# Submodules #
2683##############
2684
2685capstone = not_found
2686if not get_option('capstone').auto() or have_system or have_user
2687  capstone = dependency('capstone', version: '>=3.0.5',
2688                        kwargs: static_kwargs, method: 'pkg-config',
2689                        required: get_option('capstone'))
2690
2691  # Some versions of capstone have broken pkg-config file
2692  # that reports a wrong -I path, causing the #include to
2693  # fail later. If the system has such a broken version
2694  # do not use it.
2695  if capstone.found() and not cc.compiles('#include <capstone.h>',
2696                                          dependencies: [capstone])
2697    capstone = not_found
2698    if get_option('capstone').enabled()
2699      error('capstone requested, but it does not appear to work')
2700    endif
2701  endif
2702endif
2703
2704libvfio_user_dep = not_found
2705if have_system and vfio_user_server_allowed
2706  have_internal = fs.exists(meson.current_source_dir() / 'subprojects/libvfio-user/meson.build')
2707
2708  if not have_internal
2709    error('libvfio-user source not found - please pull git submodule')
2710  endif
2711
2712  libvfio_user_proj = subproject('libvfio-user')
2713
2714  libvfio_user_lib = libvfio_user_proj.get_variable('libvfio_user_dep')
2715
2716  libvfio_user_dep = declare_dependency(dependencies: [libvfio_user_lib])
2717endif
2718
2719fdt = not_found
2720if have_system
2721  fdt_opt = get_option('fdt')
2722  if fdt_opt in ['enabled', 'auto', 'system']
2723    have_internal = fs.exists(meson.current_source_dir() / 'dtc/libfdt/Makefile.libfdt')
2724    fdt = cc.find_library('fdt', kwargs: static_kwargs,
2725                          required: fdt_opt == 'system' or
2726                                    fdt_opt == 'enabled' and not have_internal)
2727    if fdt.found() and cc.links('''
2728       #include <libfdt.h>
2729       #include <libfdt_env.h>
2730       int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
2731         dependencies: fdt)
2732      fdt_opt = 'system'
2733    elif fdt_opt == 'system'
2734       error('system libfdt requested, but it is too old (1.5.1 or newer required)')
2735    elif have_internal
2736      fdt_opt = 'internal'
2737    else
2738      fdt_opt = 'disabled'
2739      fdt = not_found
2740    endif
2741  endif
2742  if fdt_opt == 'internal'
2743    fdt_files = files(
2744      'dtc/libfdt/fdt.c',
2745      'dtc/libfdt/fdt_ro.c',
2746      'dtc/libfdt/fdt_wip.c',
2747      'dtc/libfdt/fdt_sw.c',
2748      'dtc/libfdt/fdt_rw.c',
2749      'dtc/libfdt/fdt_strerror.c',
2750      'dtc/libfdt/fdt_empty_tree.c',
2751      'dtc/libfdt/fdt_addresses.c',
2752      'dtc/libfdt/fdt_overlay.c',
2753      'dtc/libfdt/fdt_check.c',
2754    )
2755
2756    fdt_inc = include_directories('dtc/libfdt')
2757    libfdt = static_library('fdt',
2758                            build_by_default: false,
2759                            sources: fdt_files,
2760                            include_directories: fdt_inc)
2761    fdt = declare_dependency(link_with: libfdt,
2762                             include_directories: fdt_inc)
2763  endif
2764else
2765  fdt_opt = 'disabled'
2766endif
2767if not fdt.found() and fdt_required.length() > 0
2768  error('fdt not available but required by targets ' + ', '.join(fdt_required))
2769endif
2770
2771config_host_data.set('CONFIG_CAPSTONE', capstone.found())
2772config_host_data.set('CONFIG_FDT', fdt.found())
2773config_host_data.set('CONFIG_SLIRP', slirp.found())
2774
2775#####################
2776# Generated sources #
2777#####################
2778
2779genh += configure_file(output: 'config-host.h', configuration: config_host_data)
2780
2781hxtool = find_program('scripts/hxtool')
2782shaderinclude = find_program('scripts/shaderinclude.pl')
2783qapi_gen = find_program('scripts/qapi-gen.py')
2784qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
2785                     meson.current_source_dir() / 'scripts/qapi/commands.py',
2786                     meson.current_source_dir() / 'scripts/qapi/common.py',
2787                     meson.current_source_dir() / 'scripts/qapi/error.py',
2788                     meson.current_source_dir() / 'scripts/qapi/events.py',
2789                     meson.current_source_dir() / 'scripts/qapi/expr.py',
2790                     meson.current_source_dir() / 'scripts/qapi/gen.py',
2791                     meson.current_source_dir() / 'scripts/qapi/introspect.py',
2792                     meson.current_source_dir() / 'scripts/qapi/parser.py',
2793                     meson.current_source_dir() / 'scripts/qapi/schema.py',
2794                     meson.current_source_dir() / 'scripts/qapi/source.py',
2795                     meson.current_source_dir() / 'scripts/qapi/types.py',
2796                     meson.current_source_dir() / 'scripts/qapi/visit.py',
2797                     meson.current_source_dir() / 'scripts/qapi/common.py',
2798                     meson.current_source_dir() / 'scripts/qapi-gen.py'
2799]
2800
2801tracetool = [
2802  python, files('scripts/tracetool.py'),
2803   '--backend=' + ','.join(get_option('trace_backends'))
2804]
2805tracetool_depends = files(
2806  'scripts/tracetool/backend/log.py',
2807  'scripts/tracetool/backend/__init__.py',
2808  'scripts/tracetool/backend/dtrace.py',
2809  'scripts/tracetool/backend/ftrace.py',
2810  'scripts/tracetool/backend/simple.py',
2811  'scripts/tracetool/backend/syslog.py',
2812  'scripts/tracetool/backend/ust.py',
2813  'scripts/tracetool/format/ust_events_c.py',
2814  'scripts/tracetool/format/ust_events_h.py',
2815  'scripts/tracetool/format/__init__.py',
2816  'scripts/tracetool/format/d.py',
2817  'scripts/tracetool/format/simpletrace_stap.py',
2818  'scripts/tracetool/format/c.py',
2819  'scripts/tracetool/format/h.py',
2820  'scripts/tracetool/format/log_stap.py',
2821  'scripts/tracetool/format/stap.py',
2822  'scripts/tracetool/__init__.py',
2823  'scripts/tracetool/transform.py',
2824  'scripts/tracetool/vcpu.py'
2825)
2826
2827qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
2828                    meson.current_source_dir(),
2829                    get_option('pkgversion'), meson.project_version()]
2830qemu_version = custom_target('qemu-version.h',
2831                             output: 'qemu-version.h',
2832                             command: qemu_version_cmd,
2833                             capture: true,
2834                             build_by_default: true,
2835                             build_always_stale: true)
2836genh += qemu_version
2837
2838hxdep = []
2839hx_headers = [
2840  ['qemu-options.hx', 'qemu-options.def'],
2841  ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
2842]
2843if have_system
2844  hx_headers += [
2845    ['hmp-commands.hx', 'hmp-commands.h'],
2846    ['hmp-commands-info.hx', 'hmp-commands-info.h'],
2847  ]
2848endif
2849foreach d : hx_headers
2850  hxdep += custom_target(d[1],
2851                input: files(d[0]),
2852                output: d[1],
2853                capture: true,
2854                build_by_default: true, # to be removed when added to a target
2855                command: [hxtool, '-h', '@INPUT0@'])
2856endforeach
2857genh += hxdep
2858
2859###################
2860# Collect sources #
2861###################
2862
2863authz_ss = ss.source_set()
2864blockdev_ss = ss.source_set()
2865block_ss = ss.source_set()
2866chardev_ss = ss.source_set()
2867common_ss = ss.source_set()
2868crypto_ss = ss.source_set()
2869hwcore_ss = ss.source_set()
2870io_ss = ss.source_set()
2871qmp_ss = ss.source_set()
2872qom_ss = ss.source_set()
2873softmmu_ss = ss.source_set()
2874specific_fuzz_ss = ss.source_set()
2875specific_ss = ss.source_set()
2876stub_ss = ss.source_set()
2877trace_ss = ss.source_set()
2878user_ss = ss.source_set()
2879util_ss = ss.source_set()
2880
2881# accel modules
2882qtest_module_ss = ss.source_set()
2883tcg_module_ss = ss.source_set()
2884
2885modules = {}
2886target_modules = {}
2887hw_arch = {}
2888target_arch = {}
2889target_softmmu_arch = {}
2890target_user_arch = {}
2891
2892###############
2893# Trace files #
2894###############
2895
2896# TODO: add each directory to the subdirs from its own meson.build, once
2897# we have those
2898trace_events_subdirs = [
2899  'crypto',
2900  'qapi',
2901  'qom',
2902  'monitor',
2903  'util',
2904  'gdbstub',
2905]
2906if have_linux_user
2907  trace_events_subdirs += [ 'linux-user' ]
2908endif
2909if have_bsd_user
2910  trace_events_subdirs += [ 'bsd-user' ]
2911endif
2912if have_block
2913  trace_events_subdirs += [
2914    'authz',
2915    'block',
2916    'io',
2917    'nbd',
2918    'scsi',
2919  ]
2920endif
2921if have_system
2922  trace_events_subdirs += [
2923    'accel/kvm',
2924    'audio',
2925    'backends',
2926    'backends/tpm',
2927    'chardev',
2928    'ebpf',
2929    'hw/9pfs',
2930    'hw/acpi',
2931    'hw/adc',
2932    'hw/alpha',
2933    'hw/arm',
2934    'hw/audio',
2935    'hw/block',
2936    'hw/block/dataplane',
2937    'hw/char',
2938    'hw/display',
2939    'hw/dma',
2940    'hw/hyperv',
2941    'hw/i2c',
2942    'hw/i386',
2943    'hw/i386/xen',
2944    'hw/ide',
2945    'hw/input',
2946    'hw/intc',
2947    'hw/isa',
2948    'hw/mem',
2949    'hw/mips',
2950    'hw/misc',
2951    'hw/misc/macio',
2952    'hw/net',
2953    'hw/net/can',
2954    'hw/nubus',
2955    'hw/nvme',
2956    'hw/nvram',
2957    'hw/pci',
2958    'hw/pci-host',
2959    'hw/ppc',
2960    'hw/rdma',
2961    'hw/rdma/vmw',
2962    'hw/rtc',
2963    'hw/s390x',
2964    'hw/scsi',
2965    'hw/sd',
2966    'hw/sh4',
2967    'hw/sparc',
2968    'hw/sparc64',
2969    'hw/ssi',
2970    'hw/timer',
2971    'hw/tpm',
2972    'hw/usb',
2973    'hw/vfio',
2974    'hw/virtio',
2975    'hw/watchdog',
2976    'hw/xen',
2977    'hw/gpio',
2978    'migration',
2979    'net',
2980    'softmmu',
2981    'ui',
2982    'hw/remote',
2983  ]
2984endif
2985if have_system or have_user
2986  trace_events_subdirs += [
2987    'accel/tcg',
2988    'hw/core',
2989    'target/arm',
2990    'target/arm/hvf',
2991    'target/hppa',
2992    'target/i386',
2993    'target/i386/kvm',
2994    'target/mips/tcg',
2995    'target/nios2',
2996    'target/ppc',
2997    'target/riscv',
2998    'target/s390x',
2999    'target/s390x/kvm',
3000    'target/sparc',
3001  ]
3002endif
3003
3004vhost_user = not_found
3005if targetos == 'linux' and have_vhost_user
3006  libvhost_user = subproject('libvhost-user')
3007  vhost_user = libvhost_user.get_variable('vhost_user_dep')
3008endif
3009
3010libvduse = not_found
3011if have_libvduse
3012  libvduse_proj = subproject('libvduse')
3013  libvduse = libvduse_proj.get_variable('libvduse_dep')
3014endif
3015
3016# NOTE: the trace/ subdirectory needs the qapi_trace_events variable
3017# that is filled in by qapi/.
3018subdir('qapi')
3019subdir('qobject')
3020subdir('stubs')
3021subdir('trace')
3022subdir('util')
3023subdir('qom')
3024subdir('authz')
3025subdir('crypto')
3026subdir('ui')
3027subdir('hw')
3028subdir('gdbstub')
3029
3030
3031if enable_modules
3032  libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
3033  modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
3034endif
3035
3036qom_ss = qom_ss.apply(config_host, strict: false)
3037libqom = static_library('qom', qom_ss.sources() + genh,
3038                        dependencies: [qom_ss.dependencies()],
3039                        name_suffix: 'fa')
3040qom = declare_dependency(link_whole: libqom)
3041
3042event_loop_base = files('event-loop-base.c')
3043event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
3044                                 build_by_default: true)
3045event_loop_base = declare_dependency(link_whole: event_loop_base,
3046                                     dependencies: [qom])
3047
3048stub_ss = stub_ss.apply(config_all, strict: false)
3049
3050util_ss.add_all(trace_ss)
3051util_ss = util_ss.apply(config_all, strict: false)
3052libqemuutil = static_library('qemuutil',
3053                             sources: util_ss.sources() + stub_ss.sources() + genh,
3054                             dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
3055qemuutil = declare_dependency(link_with: libqemuutil,
3056                              sources: genh + version_res,
3057                              dependencies: [event_loop_base])
3058
3059if have_system or have_user
3060  decodetree = generator(find_program('scripts/decodetree.py'),
3061                         output: 'decode-@BASENAME@.c.inc',
3062                         arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
3063  subdir('libdecnumber')
3064  subdir('target')
3065endif
3066
3067subdir('audio')
3068subdir('io')
3069subdir('chardev')
3070subdir('fsdev')
3071subdir('dump')
3072
3073if have_block
3074  block_ss.add(files(
3075    'block.c',
3076    'blockjob.c',
3077    'job.c',
3078    'qemu-io-cmds.c',
3079  ))
3080  if config_host_data.get('CONFIG_REPLICATION')
3081    block_ss.add(files('replication.c'))
3082  endif
3083
3084  subdir('nbd')
3085  subdir('scsi')
3086  subdir('block')
3087
3088  blockdev_ss.add(files(
3089    'blockdev.c',
3090    'blockdev-nbd.c',
3091    'iothread.c',
3092    'job-qmp.c',
3093  ), gnutls)
3094
3095  # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
3096  # os-win32.c does not
3097  blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
3098  softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
3099endif
3100
3101common_ss.add(files('cpus-common.c'))
3102
3103subdir('softmmu')
3104
3105common_ss.add(capstone)
3106specific_ss.add(files('cpu.c', 'disas.c'), capstone)
3107
3108# Work around a gcc bug/misfeature wherein constant propagation looks
3109# through an alias:
3110#   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
3111# to guess that a const variable is always zero.  Without lto, this is
3112# impossible, as the alias is restricted to page-vary-common.c.  Indeed,
3113# without lto, not even the alias is required -- we simply use different
3114# declarations in different compilation units.
3115pagevary = files('page-vary-common.c')
3116if get_option('b_lto')
3117  pagevary_flags = ['-fno-lto']
3118  if get_option('cfi')
3119    pagevary_flags += '-fno-sanitize=cfi-icall'
3120  endif
3121  pagevary = static_library('page-vary-common', sources: pagevary + genh,
3122                            c_args: pagevary_flags)
3123  pagevary = declare_dependency(link_with: pagevary)
3124endif
3125common_ss.add(pagevary)
3126specific_ss.add(files('page-vary.c'))
3127
3128subdir('backends')
3129subdir('disas')
3130subdir('migration')
3131subdir('monitor')
3132subdir('net')
3133subdir('replay')
3134subdir('semihosting')
3135subdir('tcg')
3136subdir('fpu')
3137subdir('accel')
3138subdir('plugins')
3139subdir('ebpf')
3140
3141common_user_inc = []
3142
3143subdir('common-user')
3144subdir('bsd-user')
3145subdir('linux-user')
3146
3147# needed for fuzzing binaries
3148subdir('tests/qtest/libqos')
3149subdir('tests/qtest/fuzz')
3150
3151# accel modules
3152tcg_real_module_ss = ss.source_set()
3153tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
3154specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
3155target_modules += { 'accel' : { 'qtest': qtest_module_ss,
3156                                'tcg': tcg_real_module_ss }}
3157
3158########################
3159# Library dependencies #
3160########################
3161
3162modinfo_collect = find_program('scripts/modinfo-collect.py')
3163modinfo_generate = find_program('scripts/modinfo-generate.py')
3164modinfo_files = []
3165
3166block_mods = []
3167softmmu_mods = []
3168foreach d, list : modules
3169  foreach m, module_ss : list
3170    if enable_modules and targetos != 'windows'
3171      module_ss = module_ss.apply(config_all, strict: false)
3172      sl = static_library(d + '-' + m, [genh, module_ss.sources()],
3173                          dependencies: [modulecommon, module_ss.dependencies()], pic: true)
3174      if d == 'block'
3175        block_mods += sl
3176      else
3177        softmmu_mods += sl
3178      endif
3179      if module_ss.sources() != []
3180        # FIXME: Should use sl.extract_all_objects(recursive: true) as
3181        # input. Sources can be used multiple times but objects are
3182        # unique when it comes to lookup in compile_commands.json.
3183        # Depnds on a mesion version with
3184        # https://github.com/mesonbuild/meson/pull/8900
3185        modinfo_files += custom_target(d + '-' + m + '.modinfo',
3186                                       output: d + '-' + m + '.modinfo',
3187                                       input: module_ss.sources() + genh,
3188                                       capture: true,
3189                                       command: [modinfo_collect, module_ss.sources()])
3190      endif
3191    else
3192      if d == 'block'
3193        block_ss.add_all(module_ss)
3194      else
3195        softmmu_ss.add_all(module_ss)
3196      endif
3197    endif
3198  endforeach
3199endforeach
3200
3201foreach d, list : target_modules
3202  foreach m, module_ss : list
3203    if enable_modules and targetos != 'windows'
3204      foreach target : target_dirs
3205        if target.endswith('-softmmu')
3206          config_target = config_target_mak[target]
3207          config_target += config_host
3208          target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3209          c_args = ['-DNEED_CPU_H',
3210                    '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3211                    '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3212          target_module_ss = module_ss.apply(config_target, strict: false)
3213          if target_module_ss.sources() != []
3214            module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
3215            sl = static_library(module_name,
3216                                [genh, target_module_ss.sources()],
3217                                dependencies: [modulecommon, target_module_ss.dependencies()],
3218                                include_directories: target_inc,
3219                                c_args: c_args,
3220                                pic: true)
3221            softmmu_mods += sl
3222            # FIXME: Should use sl.extract_all_objects(recursive: true) too.
3223            modinfo_files += custom_target(module_name + '.modinfo',
3224                                           output: module_name + '.modinfo',
3225                                           input: target_module_ss.sources() + genh,
3226                                           capture: true,
3227                                           command: [modinfo_collect, '--target', target, target_module_ss.sources()])
3228          endif
3229        endif
3230      endforeach
3231    else
3232      specific_ss.add_all(module_ss)
3233    endif
3234  endforeach
3235endforeach
3236
3237if enable_modules
3238  foreach target : target_dirs
3239    if target.endswith('-softmmu')
3240      config_target = config_target_mak[target]
3241      config_devices_mak = target + '-config-devices.mak'
3242      modinfo_src = custom_target('modinfo-' + target + '.c',
3243                                  output: 'modinfo-' + target + '.c',
3244                                  input: modinfo_files,
3245                                  command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
3246                                  capture: true)
3247
3248      modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
3249      modinfo_dep = declare_dependency(link_with: modinfo_lib)
3250
3251      arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
3252      hw_arch[arch].add(modinfo_dep)
3253    endif
3254  endforeach
3255endif
3256
3257nm = find_program('nm')
3258undefsym = find_program('scripts/undefsym.py')
3259block_syms = custom_target('block.syms', output: 'block.syms',
3260                             input: [libqemuutil, block_mods],
3261                             capture: true,
3262                             command: [undefsym, nm, '@INPUT@'])
3263qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
3264                             input: [libqemuutil, softmmu_mods],
3265                             capture: true,
3266                             command: [undefsym, nm, '@INPUT@'])
3267
3268authz_ss = authz_ss.apply(config_host, strict: false)
3269libauthz = static_library('authz', authz_ss.sources() + genh,
3270                          dependencies: [authz_ss.dependencies()],
3271                          name_suffix: 'fa',
3272                          build_by_default: false)
3273
3274authz = declare_dependency(link_whole: libauthz,
3275                           dependencies: qom)
3276
3277crypto_ss = crypto_ss.apply(config_host, strict: false)
3278libcrypto = static_library('crypto', crypto_ss.sources() + genh,
3279                           dependencies: [crypto_ss.dependencies()],
3280                           name_suffix: 'fa',
3281                           build_by_default: false)
3282
3283crypto = declare_dependency(link_whole: libcrypto,
3284                            dependencies: [authz, qom])
3285
3286io_ss = io_ss.apply(config_host, strict: false)
3287libio = static_library('io', io_ss.sources() + genh,
3288                       dependencies: [io_ss.dependencies()],
3289                       link_with: libqemuutil,
3290                       name_suffix: 'fa',
3291                       build_by_default: false)
3292
3293io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
3294
3295libmigration = static_library('migration', sources: migration_files + genh,
3296                              name_suffix: 'fa',
3297                              build_by_default: false)
3298migration = declare_dependency(link_with: libmigration,
3299                               dependencies: [zlib, qom, io])
3300softmmu_ss.add(migration)
3301
3302block_ss = block_ss.apply(config_host, strict: false)
3303libblock = static_library('block', block_ss.sources() + genh,
3304                          dependencies: block_ss.dependencies(),
3305                          link_depends: block_syms,
3306                          name_suffix: 'fa',
3307                          build_by_default: false)
3308
3309block = declare_dependency(link_whole: [libblock],
3310                           link_args: '@block.syms',
3311                           dependencies: [crypto, io])
3312
3313blockdev_ss = blockdev_ss.apply(config_host, strict: false)
3314libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
3315                             dependencies: blockdev_ss.dependencies(),
3316                             name_suffix: 'fa',
3317                             build_by_default: false)
3318
3319blockdev = declare_dependency(link_whole: [libblockdev],
3320                              dependencies: [block, event_loop_base])
3321
3322qmp_ss = qmp_ss.apply(config_host, strict: false)
3323libqmp = static_library('qmp', qmp_ss.sources() + genh,
3324                        dependencies: qmp_ss.dependencies(),
3325                        name_suffix: 'fa',
3326                        build_by_default: false)
3327
3328qmp = declare_dependency(link_whole: [libqmp])
3329
3330libchardev = static_library('chardev', chardev_ss.sources() + genh,
3331                            name_suffix: 'fa',
3332                            dependencies: chardev_ss.dependencies(),
3333                            build_by_default: false)
3334
3335chardev = declare_dependency(link_whole: libchardev)
3336
3337hwcore_ss = hwcore_ss.apply(config_host, strict: false)
3338libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
3339                           name_suffix: 'fa',
3340                           build_by_default: false)
3341hwcore = declare_dependency(link_whole: libhwcore)
3342common_ss.add(hwcore)
3343
3344###########
3345# Targets #
3346###########
3347
3348emulator_modules = []
3349foreach m : block_mods + softmmu_mods
3350  emulator_modules += shared_module(m.name(),
3351                build_by_default: true,
3352                name_prefix: '',
3353                link_whole: m,
3354                install: true,
3355                install_dir: qemu_moddir)
3356endforeach
3357if emulator_modules.length() > 0
3358  alias_target('modules', emulator_modules)
3359endif
3360
3361softmmu_ss.add(authz, blockdev, chardev, crypto, io, qmp)
3362common_ss.add(qom, qemuutil)
3363
3364common_ss.add_all(when: 'CONFIG_SOFTMMU', if_true: [softmmu_ss])
3365common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
3366
3367common_all = common_ss.apply(config_all, strict: false)
3368common_all = static_library('common',
3369                            build_by_default: false,
3370                            sources: common_all.sources() + genh,
3371                            include_directories: common_user_inc,
3372                            implicit_include_directories: false,
3373                            dependencies: common_all.dependencies(),
3374                            name_suffix: 'fa')
3375
3376feature_to_c = find_program('scripts/feature_to_c.sh')
3377
3378if targetos == 'darwin'
3379  entitlement = find_program('scripts/entitlement.sh')
3380endif
3381
3382emulators = {}
3383foreach target : target_dirs
3384  config_target = config_target_mak[target]
3385  target_name = config_target['TARGET_NAME']
3386  target_base_arch = config_target['TARGET_BASE_ARCH']
3387  arch_srcs = [config_target_h[target]]
3388  arch_deps = []
3389  c_args = ['-DNEED_CPU_H',
3390            '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
3391            '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
3392  link_args = emulator_link_args
3393
3394  config_target += config_host
3395  target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
3396  if targetos == 'linux'
3397    target_inc += include_directories('linux-headers', is_system: true)
3398  endif
3399  if target.endswith('-softmmu')
3400    target_type='system'
3401    t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
3402    arch_srcs += t.sources()
3403    arch_deps += t.dependencies()
3404
3405    hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
3406    hw = hw_arch[hw_dir].apply(config_target, strict: false)
3407    arch_srcs += hw.sources()
3408    arch_deps += hw.dependencies()
3409
3410    arch_srcs += config_devices_h[target]
3411    link_args += ['@block.syms', '@qemu.syms']
3412  else
3413    abi = config_target['TARGET_ABI_DIR']
3414    target_type='user'
3415    target_inc += common_user_inc
3416    if target_base_arch in target_user_arch
3417      t = target_user_arch[target_base_arch].apply(config_target, strict: false)
3418      arch_srcs += t.sources()
3419      arch_deps += t.dependencies()
3420    endif
3421    if 'CONFIG_LINUX_USER' in config_target
3422      base_dir = 'linux-user'
3423    endif
3424    if 'CONFIG_BSD_USER' in config_target
3425      base_dir = 'bsd-user'
3426      target_inc += include_directories('bsd-user/' / targetos)
3427      target_inc += include_directories('bsd-user/host/' / host_arch)
3428      dir = base_dir / abi
3429      arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
3430    endif
3431    target_inc += include_directories(
3432      base_dir,
3433      base_dir / abi,
3434    )
3435    if 'CONFIG_LINUX_USER' in config_target
3436      dir = base_dir / abi
3437      arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
3438      if config_target.has_key('TARGET_SYSTBL_ABI')
3439        arch_srcs += \
3440          syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
3441                                             extra_args : config_target['TARGET_SYSTBL_ABI'])
3442      endif
3443    endif
3444  endif
3445
3446  if 'TARGET_XML_FILES' in config_target
3447    gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
3448                                output: target + '-gdbstub-xml.c',
3449                                input: files(config_target['TARGET_XML_FILES'].split()),
3450                                command: [feature_to_c, '@INPUT@'],
3451                                capture: true)
3452    arch_srcs += gdbstub_xml
3453  endif
3454
3455  t = target_arch[target_base_arch].apply(config_target, strict: false)
3456  arch_srcs += t.sources()
3457  arch_deps += t.dependencies()
3458
3459  target_common = common_ss.apply(config_target, strict: false)
3460  objects = common_all.extract_objects(target_common.sources())
3461  deps = target_common.dependencies()
3462
3463  target_specific = specific_ss.apply(config_target, strict: false)
3464  arch_srcs += target_specific.sources()
3465  arch_deps += target_specific.dependencies()
3466
3467  lib = static_library('qemu-' + target,
3468                 sources: arch_srcs + genh,
3469                 dependencies: arch_deps,
3470                 objects: objects,
3471                 include_directories: target_inc,
3472                 c_args: c_args,
3473                 build_by_default: false,
3474                 name_suffix: 'fa')
3475
3476  if target.endswith('-softmmu')
3477    execs = [{
3478      'name': 'qemu-system-' + target_name,
3479      'win_subsystem': 'console',
3480      'sources': files('softmmu/main.c'),
3481      'dependencies': []
3482    }]
3483    if targetos == 'windows' and (sdl.found() or gtk.found())
3484      execs += [{
3485        'name': 'qemu-system-' + target_name + 'w',
3486        'win_subsystem': 'windows',
3487        'sources': files('softmmu/main.c'),
3488        'dependencies': []
3489      }]
3490    endif
3491    if get_option('fuzzing')
3492      specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
3493      execs += [{
3494        'name': 'qemu-fuzz-' + target_name,
3495        'win_subsystem': 'console',
3496        'sources': specific_fuzz.sources(),
3497        'dependencies': specific_fuzz.dependencies(),
3498      }]
3499    endif
3500  else
3501    execs = [{
3502      'name': 'qemu-' + target_name,
3503      'win_subsystem': 'console',
3504      'sources': [],
3505      'dependencies': []
3506    }]
3507  endif
3508  foreach exe: execs
3509    exe_name = exe['name']
3510    if targetos == 'darwin'
3511      exe_name += '-unsigned'
3512    endif
3513
3514    emulator = executable(exe_name, exe['sources'],
3515               install: true,
3516               c_args: c_args,
3517               dependencies: arch_deps + deps + exe['dependencies'],
3518               objects: lib.extract_all_objects(recursive: true),
3519               link_language: link_language,
3520               link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
3521               link_args: link_args,
3522               win_subsystem: exe['win_subsystem'])
3523
3524    if targetos == 'darwin'
3525      icon = 'pc-bios/qemu.rsrc'
3526      build_input = [emulator, files(icon)]
3527      install_input = [
3528        get_option('bindir') / exe_name,
3529        meson.current_source_dir() / icon
3530      ]
3531      if 'CONFIG_HVF' in config_target
3532        entitlements = 'accel/hvf/entitlements.plist'
3533        build_input += files(entitlements)
3534        install_input += meson.current_source_dir() / entitlements
3535      endif
3536
3537      emulators += {exe['name'] : custom_target(exe['name'],
3538                   input: build_input,
3539                   output: exe['name'],
3540                   command: [entitlement, '@OUTPUT@', '@INPUT@'])
3541      }
3542
3543      meson.add_install_script(entitlement, '--install',
3544                               get_option('bindir') / exe['name'],
3545                               install_input)
3546    else
3547      emulators += {exe['name']: emulator}
3548    endif
3549
3550    if stap.found()
3551      foreach stp: [
3552        {'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
3553        {'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
3554        {'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
3555        {'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
3556      ]
3557        custom_target(exe['name'] + stp['ext'],
3558                      input: trace_events_all,
3559                      output: exe['name'] + stp['ext'],
3560                      install: stp['install'],
3561                      install_dir: get_option('datadir') / 'systemtap/tapset',
3562                      command: [
3563                        tracetool, '--group=all', '--format=' + stp['fmt'],
3564                        '--binary=' + stp['bin'],
3565                        '--target-name=' + target_name,
3566                        '--target-type=' + target_type,
3567                        '--probe-prefix=qemu.' + target_type + '.' + target_name,
3568                        '@INPUT@', '@OUTPUT@'
3569                      ],
3570                      depend_files: tracetool_depends)
3571      endforeach
3572    endif
3573  endforeach
3574endforeach
3575
3576# Other build targets
3577
3578if 'CONFIG_PLUGIN' in config_host
3579  install_headers('include/qemu/qemu-plugin.h')
3580endif
3581
3582subdir('qga')
3583
3584# Don't build qemu-keymap if xkbcommon is not explicitly enabled
3585# when we don't build tools or system
3586if xkbcommon.found()
3587  # used for the update-keymaps target, so include rules even if !have_tools
3588  qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
3589                           dependencies: [qemuutil, xkbcommon], install: have_tools)
3590endif
3591
3592if have_tools
3593  qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
3594             dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
3595  qemu_io = executable('qemu-io', files('qemu-io.c'),
3596             dependencies: [block, qemuutil], install: true)
3597  qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
3598               dependencies: [blockdev, qemuutil, gnutls, selinux],
3599               install: true)
3600
3601  subdir('storage-daemon')
3602  subdir('contrib/rdmacm-mux')
3603  subdir('contrib/elf2dmp')
3604
3605  executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
3606             dependencies: qemuutil,
3607             install: true)
3608
3609  if have_vhost_user
3610    subdir('contrib/vhost-user-blk')
3611    subdir('contrib/vhost-user-gpu')
3612    subdir('contrib/vhost-user-input')
3613    subdir('contrib/vhost-user-scsi')
3614  endif
3615
3616  if targetos == 'linux'
3617    executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
3618               dependencies: [qemuutil, libcap_ng],
3619               install: true,
3620               install_dir: get_option('libexecdir'))
3621
3622    executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
3623               dependencies: [authz, crypto, io, qom, qemuutil,
3624                              libcap_ng, mpathpersist],
3625               install: true)
3626  endif
3627
3628  if have_ivshmem
3629    subdir('contrib/ivshmem-client')
3630    subdir('contrib/ivshmem-server')
3631  endif
3632endif
3633
3634subdir('scripts')
3635subdir('tools')
3636subdir('pc-bios')
3637subdir('docs')
3638subdir('tests')
3639if gtk.found()
3640  subdir('po')
3641endif
3642
3643if host_machine.system() == 'windows'
3644  nsis_cmd = [
3645    find_program('scripts/nsis.py'),
3646    '@OUTPUT@',
3647    get_option('prefix'),
3648    meson.current_source_dir(),
3649    config_host['GLIB_BINDIR'],
3650    host_machine.cpu(),
3651    '--',
3652    '-DDISPLAYVERSION=' + meson.project_version(),
3653  ]
3654  if build_docs
3655    nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
3656  endif
3657  if gtk.found()
3658    nsis_cmd += '-DCONFIG_GTK=y'
3659  endif
3660
3661  nsis = custom_target('nsis',
3662                       output: 'qemu-setup-' + meson.project_version() + '.exe',
3663                       input: files('qemu.nsi'),
3664                       build_always_stale: true,
3665                       command: nsis_cmd + ['@INPUT@'])
3666  alias_target('installer', nsis)
3667endif
3668
3669#########################
3670# Configuration summary #
3671#########################
3672
3673# Directories
3674summary_info = {}
3675summary_info += {'Install prefix':    get_option('prefix')}
3676summary_info += {'BIOS directory':    qemu_datadir}
3677pathsep = targetos == 'windows' ? ';' : ':'
3678summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
3679summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
3680summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
3681summary_info += {'module directory':  qemu_moddir}
3682summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
3683summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
3684summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
3685if targetos != 'windows'
3686  summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
3687  summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
3688else
3689  summary_info += {'local state directory': 'queried at runtime'}
3690endif
3691summary_info += {'Doc directory':     get_option('prefix') / get_option('docdir')}
3692summary_info += {'Build directory':   meson.current_build_dir()}
3693summary_info += {'Source path':       meson.current_source_dir()}
3694summary_info += {'GIT submodules':    config_host['GIT_SUBMODULES']}
3695summary(summary_info, bool_yn: true, section: 'Directories')
3696
3697# Host binaries
3698summary_info = {}
3699summary_info += {'git':               config_host['GIT']}
3700summary_info += {'make':              config_host['MAKE']}
3701summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
3702summary_info += {'sphinx-build':      sphinx_build}
3703if config_host.has_key('HAVE_GDB_BIN')
3704  summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
3705endif
3706summary_info += {'iasl':              iasl}
3707summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
3708if targetos == 'windows' and have_ga
3709  summary_info += {'wixl':            wixl}
3710endif
3711if slirp.found() and have_system
3712  summary_info += {'smbd':            have_slirp_smbd ? smbd_path : false}
3713endif
3714summary(summary_info, bool_yn: true, section: 'Host binaries')
3715
3716# Configurable features
3717summary_info = {}
3718summary_info += {'Documentation':     build_docs}
3719summary_info += {'system-mode emulation': have_system}
3720summary_info += {'user-mode emulation': have_user}
3721summary_info += {'block layer':       have_block}
3722summary_info += {'Install blobs':     get_option('install_blobs')}
3723summary_info += {'module support':    config_host.has_key('CONFIG_MODULES')}
3724if config_host.has_key('CONFIG_MODULES')
3725  summary_info += {'alternative module path': get_option('module_upgrades')}
3726endif
3727summary_info += {'fuzzing support':   get_option('fuzzing')}
3728if have_system
3729  summary_info += {'Audio drivers':     ' '.join(audio_drivers_selected)}
3730endif
3731summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
3732if 'simple' in get_option('trace_backends')
3733  summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
3734endif
3735summary_info += {'D-Bus display':     dbus_display}
3736summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
3737summary_info += {'vhost-kernel support': have_vhost_kernel}
3738summary_info += {'vhost-net support': have_vhost_net}
3739summary_info += {'vhost-user support': have_vhost_user}
3740summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
3741summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
3742summary_info += {'vhost-vdpa support': have_vhost_vdpa}
3743summary_info += {'build guest agent': have_ga}
3744summary(summary_info, bool_yn: true, section: 'Configurable features')
3745
3746# Compilation information
3747summary_info = {}
3748summary_info += {'host CPU':          cpu}
3749summary_info += {'host endianness':   build_machine.endian()}
3750summary_info += {'C compiler':        ' '.join(meson.get_compiler('c').cmd_array())}
3751summary_info += {'Host C compiler':   ' '.join(meson.get_compiler('c', native: true).cmd_array())}
3752if link_language == 'cpp'
3753  summary_info += {'C++ compiler':    ' '.join(meson.get_compiler('cpp').cmd_array())}
3754else
3755  summary_info += {'C++ compiler':      false}
3756endif
3757if targetos == 'darwin'
3758  summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
3759endif
3760option_cflags = (get_option('debug') ? ['-g'] : [])
3761if get_option('optimization') != 'plain'
3762  option_cflags += ['-O' + get_option('optimization')]
3763endif
3764summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + option_cflags)}
3765if link_language == 'cpp'
3766  summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + option_cflags)}
3767endif
3768if targetos == 'darwin'
3769  summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + option_cflags)}
3770endif
3771link_args = get_option(link_language + '_link_args')
3772if link_args.length() > 0
3773  summary_info += {'LDFLAGS':         ' '.join(link_args)}
3774endif
3775summary_info += {'QEMU_CFLAGS':       ' '.join(qemu_cflags)}
3776if 'cpp' in all_languages
3777  summary_info += {'QEMU_CXXFLAGS':     ' '.join(qemu_cxxflags)}
3778endif
3779if 'objc' in all_languages
3780  summary_info += {'QEMU_OBJCFLAGS':    ' '.join(qemu_objcflags)}
3781endif
3782summary_info += {'QEMU_LDFLAGS':      ' '.join(qemu_ldflags)}
3783summary_info += {'profiler':          get_option('profiler')}
3784summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
3785summary_info += {'PIE':               get_option('b_pie')}
3786summary_info += {'static build':      config_host.has_key('CONFIG_STATIC')}
3787summary_info += {'malloc trim support': has_malloc_trim}
3788summary_info += {'membarrier':        have_membarrier}
3789summary_info += {'debug stack usage': get_option('debug_stack_usage')}
3790summary_info += {'mutex debugging':   get_option('debug_mutex')}
3791summary_info += {'memory allocator':  get_option('malloc')}
3792summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
3793summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
3794summary_info += {'gprof enabled':     get_option('gprof')}
3795summary_info += {'gcov':              get_option('b_coverage')}
3796summary_info += {'thread sanitizer':  config_host.has_key('CONFIG_TSAN')}
3797summary_info += {'CFI support':       get_option('cfi')}
3798if get_option('cfi')
3799  summary_info += {'CFI debug support': get_option('cfi_debug')}
3800endif
3801summary_info += {'strip binaries':    get_option('strip')}
3802summary_info += {'sparse':            sparse}
3803summary_info += {'mingw32 support':   targetos == 'windows'}
3804summary(summary_info, bool_yn: true, section: 'Compilation')
3805
3806# snarf the cross-compilation information for tests
3807summary_info = {}
3808have_cross = false
3809foreach target: target_dirs
3810  tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
3811  if fs.exists(tcg_mak)
3812    config_cross_tcg = keyval.load(tcg_mak)
3813    if 'CC' in config_cross_tcg
3814      summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
3815      have_cross = true
3816    endif
3817  endif
3818endforeach
3819if have_cross
3820  summary(summary_info, bool_yn: true, section: 'Cross compilers')
3821endif
3822
3823# Targets and accelerators
3824summary_info = {}
3825if have_system
3826  summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
3827  summary_info += {'HAX support':       config_all.has_key('CONFIG_HAX')}
3828  summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
3829  summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
3830  summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
3831  summary_info += {'Xen support':       xen.found()}
3832  if xen.found()
3833    summary_info += {'xen ctrl version':  xen.version()}
3834  endif
3835endif
3836summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
3837if config_all.has_key('CONFIG_TCG')
3838  if get_option('tcg_interpreter')
3839    summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
3840  else
3841    summary_info += {'TCG backend':   'native (@0@)'.format(cpu)}
3842  endif
3843  summary_info += {'TCG plugins': config_host.has_key('CONFIG_PLUGIN')}
3844  summary_info += {'TCG debug enabled': config_host.has_key('CONFIG_DEBUG_TCG')}
3845endif
3846summary_info += {'target list':       ' '.join(target_dirs)}
3847if have_system
3848  summary_info += {'default devices':   get_option('default_devices')}
3849  summary_info += {'out of process emulation': multiprocess_allowed}
3850  summary_info += {'vfio-user server': vfio_user_server_allowed}
3851endif
3852summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
3853
3854# Block layer
3855summary_info = {}
3856summary_info += {'coroutine backend': config_host['CONFIG_COROUTINE_BACKEND']}
3857summary_info += {'coroutine pool':    have_coroutine_pool}
3858if have_block
3859  summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
3860  summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
3861  summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
3862  summary_info += {'VirtFS support':    have_virtfs}
3863  summary_info += {'build virtiofs daemon': have_virtiofsd}
3864  summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
3865  summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
3866  summary_info += {'bochs support':     get_option('bochs').allowed()}
3867  summary_info += {'cloop support':     get_option('cloop').allowed()}
3868  summary_info += {'dmg support':       get_option('dmg').allowed()}
3869  summary_info += {'qcow v1 support':   get_option('qcow1').allowed()}
3870  summary_info += {'vdi support':       get_option('vdi').allowed()}
3871  summary_info += {'vvfat support':     get_option('vvfat').allowed()}
3872  summary_info += {'qed support':       get_option('qed').allowed()}
3873  summary_info += {'parallels support': get_option('parallels').allowed()}
3874  summary_info += {'FUSE exports':      fuse}
3875  summary_info += {'VDUSE block exports': have_vduse_blk_export}
3876endif
3877summary(summary_info, bool_yn: true, section: 'Block layer support')
3878
3879# Crypto
3880summary_info = {}
3881summary_info += {'TLS priority':      get_option('tls_priority')}
3882summary_info += {'GNUTLS support':    gnutls}
3883if gnutls.found()
3884  summary_info += {'  GNUTLS crypto':   gnutls_crypto.found()}
3885endif
3886summary_info += {'libgcrypt':         gcrypt}
3887summary_info += {'nettle':            nettle}
3888if nettle.found()
3889   summary_info += {'  XTS':             xts != 'private'}
3890endif
3891summary_info += {'AF_ALG support':    have_afalg}
3892summary_info += {'rng-none':          get_option('rng_none')}
3893summary_info += {'Linux keyring':     have_keyring}
3894summary(summary_info, bool_yn: true, section: 'Crypto')
3895
3896# Libraries
3897summary_info = {}
3898if targetos == 'darwin'
3899  summary_info += {'Cocoa support':           cocoa}
3900  summary_info += {'vmnet.framework support': vmnet}
3901endif
3902summary_info += {'SDL support':       sdl}
3903summary_info += {'SDL image support': sdl_image}
3904summary_info += {'GTK support':       gtk}
3905summary_info += {'pixman':            pixman}
3906summary_info += {'VTE support':       vte}
3907summary_info += {'slirp support':     slirp}
3908summary_info += {'libtasn1':          tasn1}
3909summary_info += {'PAM':               pam}
3910summary_info += {'iconv support':     iconv}
3911summary_info += {'curses support':    curses}
3912summary_info += {'virgl support':     virgl}
3913summary_info += {'blkio support':     blkio}
3914summary_info += {'curl support':      curl}
3915summary_info += {'Multipath support': mpathpersist}
3916summary_info += {'PNG support':       png}
3917summary_info += {'VNC support':       vnc}
3918if vnc.found()
3919  summary_info += {'VNC SASL support':  sasl}
3920  summary_info += {'VNC JPEG support':  jpeg}
3921endif
3922if targetos not in ['darwin', 'haiku', 'windows']
3923  summary_info += {'OSS support':     oss}
3924  summary_info += {'sndio support':   sndio}
3925elif targetos == 'darwin'
3926  summary_info += {'CoreAudio support': coreaudio}
3927elif targetos == 'windows'
3928  summary_info += {'DirectSound support': dsound}
3929endif
3930if targetos == 'linux'
3931  summary_info += {'ALSA support':    alsa}
3932  summary_info += {'PulseAudio support': pulse}
3933endif
3934summary_info += {'JACK support':      jack}
3935summary_info += {'brlapi support':    brlapi}
3936summary_info += {'vde support':       vde}
3937summary_info += {'netmap support':    have_netmap}
3938summary_info += {'l2tpv3 support':    have_l2tpv3}
3939summary_info += {'Linux AIO support': libaio}
3940summary_info += {'Linux io_uring support': linux_io_uring}
3941summary_info += {'ATTR/XATTR support': libattr}
3942summary_info += {'RDMA support':      rdma}
3943summary_info += {'PVRDMA support':    have_pvrdma}
3944summary_info += {'fdt support':       fdt_opt == 'disabled' ? false : fdt_opt}
3945summary_info += {'libcap-ng support': libcap_ng}
3946summary_info += {'bpf support':       libbpf}
3947summary_info += {'spice protocol support': spice_protocol}
3948if spice_protocol.found()
3949  summary_info += {'  spice server support': spice}
3950endif
3951summary_info += {'rbd support':       rbd}
3952summary_info += {'smartcard support': cacard}
3953summary_info += {'U2F support':       u2f}
3954summary_info += {'libusb':            libusb}
3955summary_info += {'usb net redir':     usbredir}
3956summary_info += {'OpenGL support (epoxy)': opengl}
3957summary_info += {'GBM':               gbm}
3958summary_info += {'libiscsi support':  libiscsi}
3959summary_info += {'libnfs support':    libnfs}
3960if targetos == 'windows'
3961  if have_ga
3962    summary_info += {'QGA VSS support':   have_qga_vss}
3963  endif
3964endif
3965summary_info += {'seccomp support':   seccomp}
3966summary_info += {'GlusterFS support': glusterfs}
3967summary_info += {'TPM support':       have_tpm}
3968summary_info += {'libssh support':    libssh}
3969summary_info += {'lzo support':       lzo}
3970summary_info += {'snappy support':    snappy}
3971summary_info += {'bzip2 support':     libbzip2}
3972summary_info += {'lzfse support':     liblzfse}
3973summary_info += {'zstd support':      zstd}
3974summary_info += {'NUMA host support': numa}
3975summary_info += {'capstone':          capstone}
3976summary_info += {'libpmem support':   libpmem}
3977summary_info += {'libdaxctl support': libdaxctl}
3978summary_info += {'libudev':           libudev}
3979# Dummy dependency, keep .found()
3980summary_info += {'FUSE lseek':        fuse_lseek.found()}
3981summary_info += {'selinux':           selinux}
3982summary_info += {'libdw':             libdw}
3983summary(summary_info, bool_yn: true, section: 'Dependencies')
3984
3985if not supported_cpus.contains(cpu)
3986  message()
3987  warning('SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!')
3988  message()
3989  message('CPU host architecture ' + cpu + ' support is not currently maintained.')
3990  message('The QEMU project intends to remove support for this host CPU in')
3991  message('a future release if nobody volunteers to maintain it and to')
3992  message('provide a build host for our continuous integration setup.')
3993  message('configure has succeeded and you can continue to build, but')
3994  message('if you care about QEMU on this platform you should contact')
3995  message('us upstream at qemu-devel@nongnu.org.')
3996endif
3997
3998if not supported_oses.contains(targetos)
3999  message()
4000  warning('WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!')
4001  message()
4002  message('Host OS ' + targetos + 'support is not currently maintained.')
4003  message('The QEMU project intends to remove support for this host OS in')
4004  message('a future release if nobody volunteers to maintain it and to')
4005  message('provide a build host for our continuous integration setup.')
4006  message('configure has succeeded and you can continue to build, but')
4007  message('if you care about QEMU on this platform you should contact')
4008  message('us upstream at qemu-devel@nongnu.org.')
4009endif
4010