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Ilya Maximets cb039ef3d9 net: add initial support for AF_XDP network backend 
AF_XDP is a network socket family that allows communication directly
with the network device driver in the kernel, bypassing most or all
of the kernel networking stack.  In the essence, the technology is
pretty similar to netmap.  But, unlike netmap, AF_XDP is Linux-native
and works with any network interfaces without driver modifications.
Unlike vhost-based backends (kernel, user, vdpa), AF_XDP doesn't
require access to character devices or unix sockets.  Only access to
the network interface itself is necessary.

This patch implements a network backend that communicates with the
kernel by creating an AF_XDP socket.  A chunk of userspace memory
is shared between QEMU and the host kernel.  4 ring buffers (Tx, Rx,
Fill and Completion) are placed in that memory along with a pool of
memory buffers for the packet data.  Data transmission is done by
allocating one of the buffers, copying packet data into it and
placing the pointer into Tx ring.  After transmission, device will
return the buffer via Completion ring.  On Rx, device will take
a buffer form a pre-populated Fill ring, write the packet data into
it and place the buffer into Rx ring.

AF_XDP network backend takes on the communication with the host
kernel and the network interface and forwards packets to/from the
peer device in QEMU.

Usage example:

  -device virtio-net-pci,netdev=guest1,mac=00:16:35:AF:AA:5C
  -netdev af-xdp,ifname=ens6f1np1,id=guest1,mode=native,queues=1

XDP program bridges the socket with a network interface.  It can be
attached to the interface in 2 different modes:

1. skb - this mode should work for any interface and doesn't require
         driver support.  With a caveat of lower performance.

2. native - this does require support from the driver and allows to
            bypass skb allocation in the kernel and potentially use
            zero-copy while getting packets in/out userspace.

By default, QEMU will try to use native mode and fall back to skb.
Mode can be forced via 'mode' option.  To force 'copy' even in native
mode, use 'force-copy=on' option.  This might be useful if there is
some issue with the driver.

Option 'queues=N' allows to specify how many device queues should
be open.  Note that all the queues that are not open are still
functional and can receive traffic, but it will not be delivered to
QEMU.  So, the number of device queues should generally match the
QEMU configuration, unless the device is shared with something
else and the traffic re-direction to appropriate queues is correctly
configured on a device level (e.g. with ethtool -N).
'start-queue=M' option can be used to specify from which queue id
QEMU should start configuring 'N' queues.  It might also be necessary
to use this option with certain NICs, e.g. MLX5 NICs.  See the docs
for examples.

In a general case QEMU will need CAP_NET_ADMIN and CAP_SYS_ADMIN
or CAP_BPF capabilities in order to load default XSK/XDP programs to
the network interface and configure BPF maps.  It is possible, however,
to run with no capabilities.  For that to work, an external process
with enough capabilities will need to pre-load default XSK program,
create AF_XDP sockets and pass their file descriptors to QEMU process
on startup via 'sock-fds' option.  Network backend will need to be
configured with 'inhibit=on' to avoid loading of the program.
QEMU will need 32 MB of locked memory (RLIMIT_MEMLOCK) per queue
or CAP_IPC_LOCK.

There are few performance challenges with the current network backends.

First is that they do not support IO threads.  This means that data
path is handled by the main thread in QEMU and may slow down other
work or may be slowed down by some other work.  This also means that
taking advantage of multi-queue is generally not possible today.

Another thing is that data path is going through the device emulation
code, which is not really optimized for performance.  The fastest
"frontend" device is virtio-net.  But it's not optimized for heavy
traffic either, because it expects such use-cases to be handled via
some implementation of vhost (user, kernel, vdpa).  In practice, we
have virtio notifications and rcu lock/unlock on a per-packet basis
and not very efficient accesses to the guest memory.  Communication
channels between backend and frontend devices do not allow passing
more than one packet at a time as well.

Some of these challenges can be avoided in the future by adding better
batching into device emulation or by implementing vhost-af-xdp variant.

There are also a few kernel limitations.  AF_XDP sockets do not
support any kinds of checksum or segmentation offloading.  Buffers
are limited to a page size (4K), i.e. MTU is limited.  Multi-buffer
support implementation for AF_XDP is in progress, but not ready yet.
Also, transmission in all non-zero-copy modes is synchronous, i.e.
done in a syscall.  That doesn't allow high packet rates on virtual
interfaces.

However, keeping in mind all of these challenges, current implementation
of the AF_XDP backend shows a decent performance while running on top
of a physical NIC with zero-copy support.

Test setup:

2 VMs running on 2 physical hosts connected via ConnectX6-Dx card.
Network backend is configured to open the NIC directly in native mode.
The driver supports zero-copy.  NIC is configured to use 1 queue.

Inside a VM - iperf3 for basic TCP performance testing and dpdk-testpmd
for PPS testing.

iperf3 result:
 TCP stream      : 19.1 Gbps

dpdk-testpmd (single queue, single CPU core, 64 B packets) results:
 Tx only         : 3.4 Mpps
 Rx only         : 2.0 Mpps
 L2 FWD Loopback : 1.5 Mpps

In skb mode the same setup shows much lower performance, similar to
the setup where pair of physical NICs is replaced with veth pair:

iperf3 result:
  TCP stream      : 9 Gbps

dpdk-testpmd (single queue, single CPU core, 64 B packets) results:
  Tx only         : 1.2 Mpps
  Rx only         : 1.0 Mpps
  L2 FWD Loopback : 0.7 Mpps

Results in skb mode or over the veth are close to results of a tap
backend with vhost=on and disabled segmentation offloading bridged
with a NIC.

Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> (docker/lcitool)
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18 14:36:13 +08:00

4372 lines
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Meson
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project('qemu', ['c'], meson_version: '>=0.63.0',
default_options: ['warning_level=1', 'c_std=gnu11', 'cpp_std=gnu++11', 'b_colorout=auto',
'b_staticpic=false', 'stdsplit=false', 'optimization=2', 'b_pie=true'],
version: files('VERSION'))
add_test_setup('quick', exclude_suites: ['slow', 'thorough'], is_default: true)
add_test_setup('slow', exclude_suites: ['thorough'], env: ['G_TEST_SLOW=1', 'SPEED=slow'])
add_test_setup('thorough', env: ['G_TEST_SLOW=1', 'SPEED=thorough'])
meson.add_postconf_script(find_program('scripts/symlink-install-tree.py'))
not_found = dependency('', required: false)
keyval = import('keyval')
ss = import('sourceset')
fs = import('fs')
targetos = host_machine.system()
sh = find_program('sh')
config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
cc = meson.get_compiler('c')
all_languages = ['c']
if targetos == 'windows' and add_languages('cpp', required: false, native: false)
all_languages += ['cpp']
cxx = meson.get_compiler('cpp')
endif
if targetos == 'darwin' and \
add_languages('objc', required: get_option('cocoa'), native: false)
all_languages += ['objc']
objc = meson.get_compiler('objc')
endif
# Temporary directory used for files created while
# configure runs. Since it is in the build directory
# we can safely blow away any previous version of it
# (and we need not jump through hoops to try to delete
# it when configure exits.)
tmpdir = meson.current_build_dir() / 'meson-private/temp'
if get_option('qemu_suffix').startswith('/')
error('qemu_suffix cannot start with a /')
endif
qemu_confdir = get_option('sysconfdir') / get_option('qemu_suffix')
qemu_datadir = get_option('datadir') / get_option('qemu_suffix')
qemu_docdir = get_option('docdir') / get_option('qemu_suffix')
qemu_moddir = get_option('libdir') / get_option('qemu_suffix')
qemu_desktopdir = get_option('datadir') / 'applications'
qemu_icondir = get_option('datadir') / 'icons'
config_host_data = configuration_data()
genh = []
qapi_trace_events = []
bsd_oses = ['gnu/kfreebsd', 'freebsd', 'netbsd', 'openbsd', 'dragonfly', 'darwin']
supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux']
supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv32', 'riscv64', 'x86', 'x86_64',
'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64']
cpu = host_machine.cpu_family()
target_dirs = config_host['TARGET_DIRS'].split()
have_linux_user = false
have_bsd_user = false
have_system = false
foreach target : target_dirs
have_linux_user = have_linux_user or target.endswith('linux-user')
have_bsd_user = have_bsd_user or target.endswith('bsd-user')
have_system = have_system or target.endswith('-softmmu')
endforeach
have_user = have_linux_user or have_bsd_user
have_tools = get_option('tools') \
.disable_auto_if(not have_system) \
.allowed()
have_ga = get_option('guest_agent') \
.disable_auto_if(not have_system and not have_tools) \
.require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
error_message: 'unsupported OS for QEMU guest agent') \
.allowed()
enable_modules = get_option('modules') \
.require(targetos != 'windows',
error_message: 'Modules are not available for Windows') \
.require(not get_option('prefer_static'),
error_message: 'Modules are incompatible with static linking') \
.allowed()
have_block = have_system or have_tools
python = import('python').find_installation()
if cpu not in supported_cpus
host_arch = 'unknown'
elif cpu == 'x86'
host_arch = 'i386'
elif cpu == 'mips64'
host_arch = 'mips'
elif cpu in ['riscv32', 'riscv64']
host_arch = 'riscv'
else
host_arch = cpu
endif
if cpu in ['x86', 'x86_64']
kvm_targets = ['i386-softmmu', 'x86_64-softmmu']
elif cpu == 'aarch64'
kvm_targets = ['aarch64-softmmu']
elif cpu == 's390x'
kvm_targets = ['s390x-softmmu']
elif cpu in ['ppc', 'ppc64']
kvm_targets = ['ppc-softmmu', 'ppc64-softmmu']
elif cpu in ['mips', 'mips64']
kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu']
elif cpu in ['riscv32']
kvm_targets = ['riscv32-softmmu']
elif cpu in ['riscv64']
kvm_targets = ['riscv64-softmmu']
else
kvm_targets = []
endif
kvm_targets_c = '""'
if get_option('kvm').allowed() and targetos == 'linux'
kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
endif
config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
accelerator_targets = { 'CONFIG_KVM': kvm_targets }
if cpu in ['aarch64']
accelerator_targets += {
'CONFIG_HVF': ['aarch64-softmmu']
}
endif
if cpu in ['x86', 'x86_64', 'arm', 'aarch64']
# i386 emulator provides xenpv machine type for multiple architectures
accelerator_targets += {
'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu', 'aarch64-softmmu'],
}
endif
if cpu in ['x86', 'x86_64']
accelerator_targets += {
'CONFIG_HVF': ['x86_64-softmmu'],
'CONFIG_NVMM': ['i386-softmmu', 'x86_64-softmmu'],
'CONFIG_WHPX': ['i386-softmmu', 'x86_64-softmmu'],
}
endif
modular_tcg = []
# Darwin does not support references to thread-local variables in modules
if targetos != 'darwin'
modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
endif
edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
unpack_edk2_blobs = false
foreach target : edk2_targets
if target in target_dirs
bzip2 = find_program('bzip2', required: get_option('install_blobs'))
unpack_edk2_blobs = bzip2.found()
break
endif
endforeach
dtrace = not_found
stap = not_found
if 'dtrace' in get_option('trace_backends')
dtrace = find_program('dtrace', required: true)
stap = find_program('stap', required: false)
if stap.found()
# Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
# visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
# instead. QEMU --enable-modules depends on this because the SystemTap
# semaphores are linked into the main binary and not the module's shared
# object.
add_global_arguments('-DSTAP_SDT_V2',
native: false, language: all_languages)
endif
endif
if get_option('iasl') == ''
iasl = find_program('iasl', required: false)
else
iasl = find_program(get_option('iasl'), required: true)
endif
##################
# Compiler flags #
##################
foreach lang : all_languages
compiler = meson.get_compiler(lang)
if compiler.get_id() == 'gcc' and compiler.version().version_compare('>=7.4')
# ok
elif compiler.get_id() == 'clang' and compiler.compiles('''
#ifdef __apple_build_version__
# if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
# error You need at least XCode Clang v12.0 to compile QEMU
# endif
#else
# if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
# error You need at least Clang v10.0 to compile QEMU
# endif
#endif''')
# ok
else
error('You either need GCC v7.4 or Clang v10.0 (or XCode Clang v12.0) to compile QEMU')
endif
endforeach
# default flags for all hosts
# We use -fwrapv to tell the compiler that we require a C dialect where
# left shift of signed integers is well defined and has the expected
# 2s-complement style results. (Both clang and gcc agree that it
# provides these semantics.)
qemu_common_flags = [
'-D_GNU_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE',
'-fno-strict-aliasing', '-fno-common', '-fwrapv' ]
qemu_cflags = []
qemu_ldflags = []
if targetos == 'darwin'
# Disable attempts to use ObjectiveC features in os/object.h since they
# won't work when we're compiling with gcc as a C compiler.
if compiler.get_id() == 'gcc'
qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
endif
elif targetos == 'sunos'
# needed for CMSG_ macros in sys/socket.h
qemu_common_flags += '-D_XOPEN_SOURCE=600'
# needed for TIOCWIN* defines in termios.h
qemu_common_flags += '-D__EXTENSIONS__'
elif targetos == 'haiku'
qemu_common_flags += ['-DB_USE_POSITIVE_POSIX_ERRORS', '-D_BSD_SOURCE', '-fPIC']
endif
# __sync_fetch_and_and requires at least -march=i486. Many toolchains
# use i686 as default anyway, but for those that don't, an explicit
# specification is necessary
if host_arch == 'i386' and not cc.links('''
static int sfaa(int *ptr)
{
return __sync_fetch_and_and(ptr, 0);
}
int main(void)
{
int val = 42;
val = __sync_val_compare_and_swap(&val, 0, 1);
sfaa(&val);
return val;
}''')
qemu_common_flags = ['-march=i486'] + qemu_common_flags
endif
if get_option('gprof')
qemu_common_flags += ['-p']
qemu_ldflags += ['-p']
endif
if get_option('prefer_static')
qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static'
endif
# Meson currently only handles pie as a boolean for now, so if the user
# has explicitly disabled PIE we need to extend our cflags.
#
# -no-pie is supposedly a linker flag that has no effect on the compiler
# command line, but some distros, that didn't quite know what they were
# doing, made local changes to gcc's specs file that turned it into
# a compiler command-line flag.
#
# What about linker flags? For a static build, no PIE is implied by -static
# which we added above (and if it's not because of the same specs patching,
# there's nothing we can do: compilation will fail, report a bug to your
# distro and do not use --disable-pie in the meanwhile). For dynamic linking,
# instead, we can't add -no-pie because it overrides -shared: the linker then
# tries to build an executable instead of a shared library and fails. So
# don't add -no-pie anywhere and cross fingers. :(
if not get_option('b_pie')
qemu_common_flags += cc.get_supported_arguments('-fno-pie', '-no-pie')
endif
if not get_option('stack_protector').disabled()
stack_protector_probe = '''
int main(int argc, char *argv[])
{
char arr[64], *p = arr, *c = argv[argc - 1];
while (*c) {
*p++ = *c++;
}
return 0;
}'''
have_stack_protector = false
foreach arg : ['-fstack-protector-strong', '-fstack-protector-all']
# We need to check both a compile and a link, since some compiler
# setups fail only on a .c->.o compile and some only at link time
if cc.compiles(stack_protector_probe, args: ['-Werror', arg]) and \
cc.links(stack_protector_probe, args: ['-Werror', arg])
have_stack_protector = true
qemu_cflags += arg
qemu_ldflags += arg
break
endif
endforeach
get_option('stack_protector') \
.require(have_stack_protector, error_message: 'Stack protector not supported')
endif
coroutine_backend = get_option('coroutine_backend')
ucontext_probe = '''
#include <ucontext.h>
#ifdef __stub_makecontext
#error Ignoring glibc stub makecontext which will always fail
#endif
int main(void) { makecontext(0, 0, 0); return 0; }'''
# On Windows the only valid backend is the Windows specific one.
# For POSIX prefer ucontext, but it's not always possible. The fallback
# is sigcontext.
supported_backends = []
if targetos == 'windows'
supported_backends += ['windows']
else
if targetos != 'darwin' and cc.links(ucontext_probe)
supported_backends += ['ucontext']
endif
supported_backends += ['sigaltstack']
endif
if coroutine_backend == 'auto'
coroutine_backend = supported_backends[0]
elif coroutine_backend not in supported_backends
error('"@0@" backend requested but not available. Available backends: @1@' \
.format(coroutine_backend, ', '.join(supported_backends)))
endif
# Compiles if SafeStack *not* enabled
safe_stack_probe = '''
int main(void)
{
#if defined(__has_feature)
#if __has_feature(safe_stack)
#error SafeStack Enabled
#endif
#endif
return 0;
}'''
if get_option('safe_stack') != not cc.compiles(safe_stack_probe)
safe_stack_arg = get_option('safe_stack') ? '-fsanitize=safe-stack' : '-fno-sanitize=safe-stack'
if get_option('safe_stack') != not cc.compiles(safe_stack_probe, args: safe_stack_arg)
error(get_option('safe_stack') \
? 'SafeStack not supported by your compiler' \
: 'Cannot disable SafeStack')
endif
qemu_cflags += safe_stack_arg
qemu_ldflags += safe_stack_arg
endif
if get_option('safe_stack') and coroutine_backend != 'ucontext'
error('SafeStack is only supported with the ucontext coroutine backend')
endif
if get_option('sanitizers')
if cc.has_argument('-fsanitize=address')
qemu_cflags = ['-fsanitize=address'] + qemu_cflags
qemu_ldflags = ['-fsanitize=address'] + qemu_ldflags
endif
# Detect static linking issue with ubsan - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
if cc.links('int main(int argc, char **argv) { return argc + 1; }',
args: [qemu_ldflags, '-fsanitize=undefined'])
qemu_cflags = ['-fsanitize=undefined'] + qemu_cflags
qemu_ldflags = ['-fsanitize=undefined'] + qemu_ldflags
endif
endif
# Thread sanitizer is, for now, much noisier than the other sanitizers;
# keep it separate until that is not the case.
if get_option('tsan')
if get_option('sanitizers')
error('TSAN is not supported with other sanitizers')
endif
if not cc.has_function('__tsan_create_fiber',
args: '-fsanitize=thread',
prefix: '#include <sanitizer/tsan_interface.h>')
error('Cannot enable TSAN due to missing fiber annotation interface')
endif
qemu_cflags = ['-fsanitize=thread'] + qemu_cflags
qemu_ldflags = ['-fsanitize=thread'] + qemu_ldflags
endif
# Detect support for PT_GNU_RELRO + DT_BIND_NOW.
# The combination is known as "full relro", because .got.plt is read-only too.
qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
if targetos == 'windows'
qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
endif
# Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
if targetos != 'sunos' and not get_option('tsan')
qemu_ldflags += cc.get_supported_link_arguments('-Wl,--warn-common')
endif
if get_option('fuzzing')
# Specify a filter to only instrument code that is directly related to
# virtual-devices.
configure_file(output: 'instrumentation-filter',
input: 'scripts/oss-fuzz/instrumentation-filter-template',
copy: true)
if cc.compiles('int main () { return 0; }',
name: '-fsanitize-coverage-allowlist=/dev/null',
args: ['-fsanitize-coverage-allowlist=/dev/null',
'-fsanitize-coverage=trace-pc'] )
qemu_common_flags += ['-fsanitize-coverage-allowlist=instrumentation-filter']
endif
if get_option('fuzzing_engine') == ''
# Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
# compiled code. To build non-fuzzer binaries with --enable-fuzzing, link
# everything with fsanitize=fuzzer-no-link. Otherwise, the linker will be
# unable to bind the fuzzer-related callbacks added by instrumentation.
qemu_common_flags += ['-fsanitize=fuzzer-no-link']
qemu_ldflags += ['-fsanitize=fuzzer-no-link']
# For the actual fuzzer binaries, we need to link against the libfuzzer
# library. They need to be configurable, to support OSS-Fuzz
fuzz_exe_ldflags = ['-fsanitize=fuzzer']
else
# LIB_FUZZING_ENGINE was set; assume we are running on OSS-Fuzz, and
# the needed CFLAGS have already been provided
fuzz_exe_ldflags = get_option('fuzzing_engine').split()
endif
endif
add_global_arguments(qemu_common_flags, native: false, language: all_languages)
add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
# Collect warnings that we want to enable
warn_flags = [
'-Wundef',
'-Wwrite-strings',
'-Wmissing-prototypes',
'-Wstrict-prototypes',
'-Wredundant-decls',
'-Wold-style-declaration',
'-Wold-style-definition',
'-Wtype-limits',
'-Wformat-security',
'-Wformat-y2k',
'-Winit-self',
'-Wignored-qualifiers',
'-Wempty-body',
'-Wnested-externs',
'-Wendif-labels',
'-Wexpansion-to-defined',
'-Wimplicit-fallthrough=2',
'-Wmissing-format-attribute',
'-Wno-initializer-overrides',
'-Wno-missing-include-dirs',
'-Wno-shift-negative-value',
'-Wno-string-plus-int',
'-Wno-typedef-redefinition',
'-Wno-tautological-type-limit-compare',
'-Wno-psabi',
'-Wno-gnu-variable-sized-type-not-at-end',
]
if targetos != 'darwin'
warn_flags += ['-Wthread-safety']
endif
# Set up C++ compiler flags
qemu_cxxflags = []
if 'cpp' in all_languages
qemu_cxxflags = ['-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS'] + qemu_cflags
endif
# clang does not support glibc + FORTIFY_SOURCE (is it still true?)
if get_option('optimization') != '0' and targetos == 'linux'
if cc.get_id() == 'gcc'
qemu_cflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
endif
if 'cpp' in all_languages and cxx.get_id() == 'gcc'
qemu_cxxflags += ['-U_FORTIFY_SOURCE', '-D_FORTIFY_SOURCE=2']
endif
endif
add_project_arguments(qemu_cflags, native: false, language: 'c')
add_project_arguments(cc.get_supported_arguments(warn_flags), native: false, language: 'c')
if 'cpp' in all_languages
add_project_arguments(qemu_cxxflags, native: false, language: 'cpp')
add_project_arguments(cxx.get_supported_arguments(warn_flags), native: false, language: 'cpp')
endif
if 'objc' in all_languages
# Note sanitizer flags are not applied to Objective-C sources!
add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
endif
if targetos == 'linux'
add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
'-isystem', 'linux-headers',
language: all_languages)
endif
add_project_arguments('-iquote', '.',
'-iquote', meson.current_source_dir(),
'-iquote', meson.current_source_dir() / 'include',
language: all_languages)
# If a host-specific include directory exists, list that first...
host_include = meson.current_source_dir() / 'host/include/'
if fs.is_dir(host_include / host_arch)
add_project_arguments('-iquote', host_include / host_arch,
language: all_languages)
endif
# ... followed by the generic fallback.
add_project_arguments('-iquote', host_include / 'generic',
language: all_languages)
sparse = find_program('cgcc', required: get_option('sparse'))
if sparse.found()
run_target('sparse',
command: [find_program('scripts/check_sparse.py'),
'compile_commands.json', sparse.full_path(), '-Wbitwise',
'-Wno-transparent-union', '-Wno-old-initializer',
'-Wno-non-pointer-null'])
endif
###########################################
# Target-specific checks and dependencies #
###########################################
# Fuzzing
if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
not cc.links('''
#include <stdint.h>
#include <sys/types.h>
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
''',
args: ['-Werror', '-fsanitize=fuzzer'])
error('Your compiler does not support -fsanitize=fuzzer')
endif
# Tracing backends
if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
error('ftrace is supported only on Linux')
endif
if 'syslog' in get_option('trace_backends') and not cc.compiles('''
#include <syslog.h>
int main(void) {
openlog("qemu", LOG_PID, LOG_DAEMON);
syslog(LOG_INFO, "configure");
return 0;
}''')
error('syslog is not supported on this system')
endif
# Miscellaneous Linux-only features
get_option('mpath') \
.require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
multiprocess_allowed = get_option('multiprocess') \
.require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
.allowed()
vfio_user_server_allowed = get_option('vfio_user_server') \
.require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
.allowed()
have_tpm = get_option('tpm') \
.require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
.allowed()
# vhost
have_vhost_user = get_option('vhost_user') \
.disable_auto_if(targetos != 'linux') \
.require(targetos != 'windows',
error_message: 'vhost-user is not available on Windows').allowed()
have_vhost_vdpa = get_option('vhost_vdpa') \
.require(targetos == 'linux',
error_message: 'vhost-vdpa is only available on Linux').allowed()
have_vhost_kernel = get_option('vhost_kernel') \
.require(targetos == 'linux',
error_message: 'vhost-kernel is only available on Linux').allowed()
have_vhost_user_crypto = get_option('vhost_crypto') \
.require(have_vhost_user,
error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
# Target-specific libraries and flags
libm = cc.find_library('m', required: false)
threads = dependency('threads')
util = cc.find_library('util', required: false)
winmm = []
socket = []
version_res = []
coref = []
iokit = []
emulator_link_args = []
nvmm =not_found
hvf = not_found
midl = not_found
widl = not_found
pathcch = not_found
host_dsosuf = '.so'
if targetos == 'windows'
midl = find_program('midl', required: false)
widl = find_program('widl', required: false)
pathcch = cc.find_library('pathcch')
socket = cc.find_library('ws2_32')
winmm = cc.find_library('winmm')
win = import('windows')
version_res = win.compile_resources('version.rc',
depend_files: files('pc-bios/qemu-nsis.ico'),
include_directories: include_directories('.'))
host_dsosuf = '.dll'
elif targetos == 'darwin'
coref = dependency('appleframeworks', modules: 'CoreFoundation')
iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
host_dsosuf = '.dylib'
elif targetos == 'sunos'
socket = [cc.find_library('socket'),
cc.find_library('nsl'),
cc.find_library('resolv')]
elif targetos == 'haiku'
socket = [cc.find_library('posix_error_mapper'),
cc.find_library('network'),
cc.find_library('bsd')]
elif targetos == 'openbsd'
if get_option('tcg').allowed() and target_dirs.length() > 0
# Disable OpenBSD W^X if available
emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
endif
endif
# Target-specific configuration of accelerators
accelerators = []
if get_option('kvm').allowed() and targetos == 'linux'
accelerators += 'CONFIG_KVM'
endif
if get_option('whpx').allowed() and targetos == 'windows'
if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
error('WHPX requires 64-bit host')
elif cc.has_header('winhvplatform.h', required: get_option('whpx')) and \
cc.has_header('winhvemulation.h', required: get_option('whpx'))
accelerators += 'CONFIG_WHPX'
endif
endif
if get_option('hvf').allowed()
hvf = dependency('appleframeworks', modules: 'Hypervisor',
required: get_option('hvf'))
if hvf.found()
accelerators += 'CONFIG_HVF'
endif
endif
if targetos == 'netbsd'
nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
if nvmm.found()
accelerators += 'CONFIG_NVMM'
endif
endif
tcg_arch = host_arch
if get_option('tcg').allowed()
if host_arch == 'unknown'
if not get_option('tcg_interpreter')
error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
endif
elif get_option('tcg_interpreter')
warning('Use of the TCG interpreter is not recommended on this host')
warning('architecture. There is a native TCG execution backend available')
warning('which provides substantially better performance and reliability.')
warning('It is strongly recommended to remove the --enable-tcg-interpreter')
warning('configuration option on this architecture to use the native')
warning('backend.')
endif
if get_option('tcg_interpreter')
tcg_arch = 'tci'
elif host_arch == 'x86_64'
tcg_arch = 'i386'
elif host_arch == 'ppc64'
tcg_arch = 'ppc'
endif
add_project_arguments('-iquote', meson.current_source_dir() / 'tcg' / tcg_arch,
language: all_languages)
accelerators += 'CONFIG_TCG'
endif
if 'CONFIG_KVM' not in accelerators and get_option('kvm').enabled()
error('KVM not available on this platform')
endif
if 'CONFIG_HVF' not in accelerators and get_option('hvf').enabled()
error('HVF not available on this platform')
endif
if 'CONFIG_NVMM' not in accelerators and get_option('nvmm').enabled()
error('NVMM not available on this platform')
endif
if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
error('WHPX not available on this platform')
endif
################
# Dependencies #
################
# When bumping glib minimum version, please check also whether to increase
# the _WIN32_WINNT setting in osdep.h according to the value from glib
glib_req_ver = '>=2.56.0'
glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
method: 'pkg-config')
glib_cflags = []
if enable_modules
gmodule = dependency('gmodule-export-2.0', version: glib_req_ver, required: true,
method: 'pkg-config')
elif get_option('plugins')
gmodule = dependency('gmodule-no-export-2.0', version: glib_req_ver, required: true,
method: 'pkg-config')
else
gmodule = not_found
endif
# This workaround is required due to a bug in pkg-config file for glib as it
# doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
if targetos == 'windows' and get_option('prefer_static')
glib_cflags += ['-DGLIB_STATIC_COMPILATION']
endif
# Sanity check that the current size_t matches the
# size that glib thinks it should be. This catches
# problems on multi-arch where people try to build
# 32-bit QEMU while pointing at 64-bit glib headers
if not cc.compiles('''
#include <glib.h>
#include <unistd.h>
#define QEMU_BUILD_BUG_ON(x) \
typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
int main(void) {
QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
return 0;
}''', dependencies: glib_pc, args: glib_cflags)
error('''sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
You probably need to set PKG_CONFIG_LIBDIR" to point
to the right pkg-config files for your build target.''')
endif
# Silence clang warnings triggered by glib < 2.57.2
if not cc.compiles('''
#include <glib.h>
typedef struct Foo {
int i;
} Foo;
static void foo_free(Foo *f)
{
g_free(f);
}
G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
int main(void) { return 0; }''', dependencies: glib_pc, args: ['-Wunused-function', '-Werror'])
glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
endif
glib = declare_dependency(dependencies: [glib_pc, gmodule],
compile_args: glib_cflags,
version: glib_pc.version())
# Check whether glib has gslice, which we have to avoid for correctness.
# TODO: remove this check and the corresponding workaround (qtree) when
# the minimum supported glib is >= 2.75.3
glib_has_gslice = glib.version().version_compare('<2.75.3')
# override glib dep to include the above refinements
meson.override_dependency('glib-2.0', glib)
# The path to glib.h is added to all compilation commands.
add_project_dependencies(glib.partial_dependency(compile_args: true, includes: true),
native: false, language: all_languages)
gio = not_found
gdbus_codegen = not_found
gdbus_codegen_error = '@0@ requires gdbus-codegen, please install libgio'
if not get_option('gio').auto() or have_system
gio = dependency('gio-2.0', required: get_option('gio'),
method: 'pkg-config')
if gio.found() and not cc.links('''
#include <gio/gio.h>
int main(void)
{
g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
return 0;
}''', dependencies: [glib, gio])
if get_option('gio').enabled()
error('The installed libgio is broken for static linking')
endif
gio = not_found
endif
if gio.found()
gdbus_codegen = find_program(gio.get_variable('gdbus_codegen'),
required: get_option('gio'))
gio_unix = dependency('gio-unix-2.0', required: get_option('gio'),
method: 'pkg-config')
gio = declare_dependency(dependencies: [gio, gio_unix],
version: gio.version())
endif
endif
if gdbus_codegen.found() and get_option('cfi')
gdbus_codegen = not_found
gdbus_codegen_error = '@0@ uses gdbus-codegen, which does not support control flow integrity'
endif
xml_pp = find_program('scripts/xml-preprocess.py')
lttng = not_found
if 'ust' in get_option('trace_backends')
lttng = dependency('lttng-ust', required: true, version: '>= 2.1',
method: 'pkg-config')
endif
pixman = not_found
if have_system or have_tools
pixman = dependency('pixman-1', required: have_system, version:'>=0.21.8',
method: 'pkg-config')
endif
zlib = dependency('zlib', required: true)
libaio = not_found
if not get_option('linux_aio').auto() or have_block
libaio = cc.find_library('aio', has_headers: ['libaio.h'],
required: get_option('linux_aio'))
endif
linux_io_uring_test = '''
#include <liburing.h>
#include <linux/errqueue.h>
int main(void) { return 0; }'''
linux_io_uring = not_found
if not get_option('linux_io_uring').auto() or have_block
linux_io_uring = dependency('liburing', version: '>=0.3',
required: get_option('linux_io_uring'),
method: 'pkg-config')
if not cc.links(linux_io_uring_test)
linux_io_uring = not_found
endif
endif
libnfs = not_found
if not get_option('libnfs').auto() or have_block
libnfs = dependency('libnfs', version: '>=1.9.3',
required: get_option('libnfs'),
method: 'pkg-config')
endif
libattr_test = '''
#include <stddef.h>
#include <sys/types.h>
#ifdef CONFIG_LIBATTR
#include <attr/xattr.h>
#else
#include <sys/xattr.h>
#endif
int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }'''
libattr = not_found
have_old_libattr = false
if get_option('attr').allowed()
if cc.links(libattr_test)
libattr = declare_dependency()
else
libattr = cc.find_library('attr', has_headers: ['attr/xattr.h'],
required: get_option('attr'))
if libattr.found() and not \
cc.links(libattr_test, dependencies: libattr, args: '-DCONFIG_LIBATTR')
libattr = not_found
if get_option('attr').enabled()
error('could not link libattr')
else
warning('could not link libattr, disabling')
endif
else
have_old_libattr = libattr.found()
endif
endif
endif
cocoa = dependency('appleframeworks', modules: ['Cocoa', 'CoreVideo'],
required: get_option('cocoa'))
vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
'VMNET_BRIDGED_MODE',
dependencies: vmnet)
vmnet = not_found
if get_option('vmnet').enabled()
error('vmnet.framework API is outdated')
else
warning('vmnet.framework API is outdated, disabling')
endif
endif
seccomp = not_found
seccomp_has_sysrawrc = false
if not get_option('seccomp').auto() or have_system or have_tools
seccomp = dependency('libseccomp', version: '>=2.3.0',
required: get_option('seccomp'),
method: 'pkg-config')
if seccomp.found()
seccomp_has_sysrawrc = cc.has_header_symbol('seccomp.h',
'SCMP_FLTATR_API_SYSRAWRC',
dependencies: seccomp)
endif
endif
libcap_ng = not_found
if not get_option('cap_ng').auto() or have_system or have_tools
libcap_ng = cc.find_library('cap-ng', has_headers: ['cap-ng.h'],
required: get_option('cap_ng'))
endif
if libcap_ng.found() and not cc.links('''
#include <cap-ng.h>
int main(void)
{
capng_capability_to_name(CAPNG_EFFECTIVE);
return 0;
}''', dependencies: libcap_ng)
libcap_ng = not_found
if get_option('cap_ng').enabled()
error('could not link libcap-ng')
else
warning('could not link libcap-ng, disabling')
endif
endif
if get_option('xkbcommon').auto() and not have_system and not have_tools
xkbcommon = not_found
else
xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'),
method: 'pkg-config')
endif
slirp = not_found
if not get_option('slirp').auto() or have_system
slirp = dependency('slirp', required: get_option('slirp'),
method: 'pkg-config')
# slirp < 4.7 is incompatible with CFI support in QEMU. This is because
# it passes function pointers within libslirp as callbacks for timers.
# When using a system-wide shared libslirp, the type information for the
# callback is missing and the timer call produces a false positive with CFI.
# Do not use the "version" keyword argument to produce a better error.
# with control-flow integrity.
if get_option('cfi') and slirp.found() and slirp.version().version_compare('<4.7')
if get_option('slirp').enabled()
error('Control-Flow Integrity requires libslirp 4.7.')
else
warning('Cannot use libslirp since Control-Flow Integrity requires libslirp >= 4.7.')
slirp = not_found
endif
endif
endif
vde = not_found
if not get_option('vde').auto() or have_system or have_tools
vde = cc.find_library('vdeplug', has_headers: ['libvdeplug.h'],
required: get_option('vde'))
endif
if vde.found() and not cc.links('''
#include <libvdeplug.h>
int main(void)
{
struct vde_open_args a = {0, 0, 0};
char s[] = "";
vde_open(s, s, &a);
return 0;
}''', dependencies: vde)
vde = not_found
if get_option('cap_ng').enabled()
error('could not link libvdeplug')
else
warning('could not link libvdeplug, disabling')
endif
endif
pulse = not_found
if not get_option('pa').auto() or (targetos == 'linux' and have_system)
pulse = dependency('libpulse', required: get_option('pa'),
method: 'pkg-config')
endif
alsa = not_found
if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
alsa = dependency('alsa', required: get_option('alsa'),
method: 'pkg-config')
endif
jack = not_found
if not get_option('jack').auto() or have_system
jack = dependency('jack', required: get_option('jack'),
method: 'pkg-config')
endif
pipewire = not_found
if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
required: get_option('pipewire'),
method: 'pkg-config')
endif
sndio = not_found
if not get_option('sndio').auto() or have_system
sndio = dependency('sndio', required: get_option('sndio'),
method: 'pkg-config')
endif
spice_protocol = not_found
if not get_option('spice_protocol').auto() or have_system
spice_protocol = dependency('spice-protocol', version: '>=0.14.0',
required: get_option('spice_protocol'),
method: 'pkg-config')
endif
spice = not_found
if not get_option('spice').auto() or have_system
spice = dependency('spice-server', version: '>=0.14.0',
required: get_option('spice'),
method: 'pkg-config')
endif
spice_headers = spice.partial_dependency(compile_args: true, includes: true)
rt = cc.find_library('rt', required: false)
libiscsi = not_found
if not get_option('libiscsi').auto() or have_block
libiscsi = dependency('libiscsi', version: '>=1.9.0',
required: get_option('libiscsi'),
method: 'pkg-config')
endif
zstd = not_found
if not get_option('zstd').auto() or have_block
zstd = dependency('libzstd', version: '>=1.4.0',
required: get_option('zstd'),
method: 'pkg-config')
endif
virgl = not_found
have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
virgl = dependency('virglrenderer',
method: 'pkg-config',
required: get_option('virglrenderer'))
if virgl.found()
config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
prefix: '#include <virglrenderer.h>',
dependencies: virgl))
endif
endif
blkio = not_found
if not get_option('blkio').auto() or have_block
blkio = dependency('blkio',
method: 'pkg-config',
required: get_option('blkio'))
endif
curl = not_found
if not get_option('curl').auto() or have_block
curl = dependency('libcurl', version: '>=7.29.0',
method: 'pkg-config',
required: get_option('curl'))
endif
libudev = not_found
if targetos == 'linux' and (have_system or have_tools)
libudev = dependency('libudev',
method: 'pkg-config',
required: get_option('libudev'))
endif
mpathlibs = [libudev]
mpathpersist = not_found
if targetos == 'linux' and have_tools and get_option('mpath').allowed()
mpath_test_source = '''
#include <libudev.h>
#include <mpath_persist.h>
unsigned mpath_mx_alloc_len = 1024;
int logsink;
static struct config *multipath_conf;
extern struct udev *udev;
extern struct config *get_multipath_config(void);
extern void put_multipath_config(struct config *conf);
struct udev *udev;
struct config *get_multipath_config(void) { return multipath_conf; }
void put_multipath_config(struct config *conf) { }
int main(void) {
udev = udev_new();
multipath_conf = mpath_lib_init();
return 0;
}'''
libmpathpersist = cc.find_library('mpathpersist',
required: get_option('mpath'))
if libmpathpersist.found()
mpathlibs += libmpathpersist
if get_option('prefer_static')
mpathlibs += cc.find_library('devmapper',
required: get_option('mpath'))
endif
mpathlibs += cc.find_library('multipath',
required: get_option('mpath'))
foreach lib: mpathlibs
if not lib.found()
mpathlibs = []
break
endif
endforeach
if mpathlibs.length() == 0
msg = 'Dependencies missing for libmpathpersist'
elif cc.links(mpath_test_source, dependencies: mpathlibs)
mpathpersist = declare_dependency(dependencies: mpathlibs)
else
msg = 'Cannot detect libmpathpersist API'
endif
if not mpathpersist.found()
if get_option('mpath').enabled()
error(msg)
else
warning(msg + ', disabling')
endif
endif
endif
endif
iconv = not_found
curses = not_found
if have_system and get_option('curses').allowed()
curses_test = '''
#if defined(__APPLE__) || defined(__OpenBSD__)
#define _XOPEN_SOURCE_EXTENDED 1
#endif
#include <locale.h>
#include <curses.h>
#include <wchar.h>
int main(void) {
wchar_t wch = L'w';
setlocale(LC_ALL, "");
resize_term(0, 0);
addwstr(L"wide chars\n");
addnwstr(&wch, 1);
add_wch(WACS_DEGREE);
return 0;
}'''
curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
curses = dependency(curses_dep_list,
required: false,
method: 'pkg-config')
msg = get_option('curses').enabled() ? 'curses library not found' : ''
curses_compile_args = ['-DNCURSES_WIDECHAR=1']
if curses.found()
if cc.links(curses_test, args: curses_compile_args, dependencies: [curses])
curses = declare_dependency(compile_args: curses_compile_args, dependencies: [curses],
version: curses.version())
else
msg = 'curses package not usable'
curses = not_found
endif
endif
if not curses.found()
has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
if targetos != 'windows' and not has_curses_h
message('Trying with /usr/include/ncursesw')
curses_compile_args += ['-I/usr/include/ncursesw']
has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
endif
if has_curses_h
curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
foreach curses_libname : curses_libname_list
libcurses = cc.find_library(curses_libname,
required: false)
if libcurses.found()
if cc.links(curses_test, args: curses_compile_args, dependencies: libcurses)
curses = declare_dependency(compile_args: curses_compile_args,
dependencies: [libcurses])
break
else
msg = 'curses library not usable'
endif
endif
endforeach
endif
endif
if get_option('iconv').allowed()
foreach link_args : [ ['-liconv'], [] ]
# Programs will be linked with glib and this will bring in libiconv on FreeBSD.
# We need to use libiconv if available because mixing libiconv's headers with
# the system libc does not work.
# However, without adding glib to the dependencies -L/usr/local/lib will not be
# included in the command line and libiconv will not be found.
if cc.links('''
#include <iconv.h>
int main(void) {
iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
return conv != (iconv_t) -1;
}''', args: link_args, dependencies: glib)
iconv = declare_dependency(link_args: link_args, dependencies: glib)
break
endif
endforeach
endif
if curses.found() and not iconv.found()
if get_option('iconv').enabled()
error('iconv not available')
endif
msg = 'iconv required for curses UI but not available'
curses = not_found
endif
if not curses.found() and msg != ''
if get_option('curses').enabled()
error(msg)
else
warning(msg + ', disabling')
endif
endif
endif
brlapi = not_found
if not get_option('brlapi').auto() or have_system
brlapi = cc.find_library('brlapi', has_headers: ['brlapi.h'],
required: get_option('brlapi'))
if brlapi.found() and not cc.links('''
#include <brlapi.h>
#include <stddef.h>
int main(void) { return brlapi__openConnection (NULL, NULL, NULL); }''', dependencies: brlapi)
brlapi = not_found
if get_option('brlapi').enabled()
error('could not link brlapi')
else
warning('could not link brlapi, disabling')
endif
endif
endif
sdl = not_found
if not get_option('sdl').auto() or have_system
sdl = dependency('sdl2', required: get_option('sdl'))
sdl_image = not_found
endif
if sdl.found()
# Some versions of SDL have problems with -Wundef
if not cc.compiles('''
#include <SDL.h>
#include <SDL_syswm.h>
int main(int argc, char *argv[]) { return 0; }
''', dependencies: sdl, args: '-Werror=undef')
sdl = declare_dependency(compile_args: '-Wno-undef',
dependencies: sdl,
version: sdl.version())
endif
sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
method: 'pkg-config')
else
if get_option('sdl_image').enabled()
error('sdl-image required, but SDL was @0@'.format(
get_option('sdl').disabled() ? 'disabled' : 'not found'))
endif
sdl_image = not_found
endif
rbd = not_found
if not get_option('rbd').auto() or have_block
librados = cc.find_library('rados', required: get_option('rbd'))
librbd = cc.find_library('rbd', has_headers: ['rbd/librbd.h'],
required: get_option('rbd'))
if librados.found() and librbd.found()
if cc.links('''
#include <stdio.h>
#include <rbd/librbd.h>
int main(void) {
rados_t cluster;
rados_create(&cluster, NULL);
#if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
#error
#endif
return 0;
}''', dependencies: [librbd, librados])
rbd = declare_dependency(dependencies: [librbd, librados])
elif get_option('rbd').enabled()
error('librbd >= 1.12.0 required')
else
warning('librbd >= 1.12.0 not found, disabling')
endif
endif
endif
glusterfs = not_found
glusterfs_ftruncate_has_stat = false
glusterfs_iocb_has_stat = false
if not get_option('glusterfs').auto() or have_block
glusterfs = dependency('glusterfs-api', version: '>=3',
required: get_option('glusterfs'),
method: 'pkg-config')
if glusterfs.found()
glusterfs_ftruncate_has_stat = cc.links('''
#include <glusterfs/api/glfs.h>
int
main(void)
{
/* new glfs_ftruncate() passes two additional args */
return glfs_ftruncate(NULL, 0, NULL, NULL);
}
''', dependencies: glusterfs)
glusterfs_iocb_has_stat = cc.links('''
#include <glusterfs/api/glfs.h>
/* new glfs_io_cbk() passes two additional glfs_stat structs */
static void
glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
{}
int
main(void)
{
glfs_io_cbk iocb = &glusterfs_iocb;
iocb(NULL, 0 , NULL, NULL, NULL);
return 0;
}
''', dependencies: glusterfs)
endif
endif
libssh = not_found
if not get_option('libssh').auto() or have_block
libssh = dependency('libssh', version: '>=0.8.7',
method: 'pkg-config',
required: get_option('libssh'))
endif
libbzip2 = not_found
if not get_option('bzip2').auto() or have_block
libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'],
required: get_option('bzip2'))
if libbzip2.found() and not cc.links('''
#include <bzlib.h>
int main(void) { BZ2_bzlibVersion(); return 0; }''', dependencies: libbzip2)
libbzip2 = not_found
if get_option('bzip2').enabled()
error('could not link libbzip2')
else
warning('could not link libbzip2, disabling')
endif
endif
endif
liblzfse = not_found
if not get_option('lzfse').auto() or have_block
liblzfse = cc.find_library('lzfse', has_headers: ['lzfse.h'],
required: get_option('lzfse'))
endif
if liblzfse.found() and not cc.links('''
#include <lzfse.h>
int main(void) { lzfse_decode_scratch_size(); return 0; }''', dependencies: liblzfse)
liblzfse = not_found
if get_option('lzfse').enabled()
error('could not link liblzfse')
else
warning('could not link liblzfse, disabling')
endif
endif
oss = not_found
if get_option('oss').allowed() and have_system
if not cc.has_header('sys/soundcard.h')
# not found
elif targetos == 'netbsd'
oss = cc.find_library('ossaudio', required: get_option('oss'))
else
oss = declare_dependency()
endif
if not oss.found()
if get_option('oss').enabled()
error('OSS not found')
endif
endif
endif
dsound = not_found
if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
if cc.has_header('dsound.h')
dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
endif
if not dsound.found()
if get_option('dsound').enabled()
error('DirectSound not found')
endif
endif
endif
coreaudio = not_found
if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
required: get_option('coreaudio'))
endif
opengl = not_found
if not get_option('opengl').auto() or have_system or have_vhost_user_gpu
epoxy = dependency('epoxy', method: 'pkg-config',
required: get_option('opengl'))
if cc.has_header('epoxy/egl.h', dependencies: epoxy)
opengl = epoxy
elif get_option('opengl').enabled()
error('epoxy/egl.h not found')
endif
endif
gbm = not_found
if (have_system or have_tools) and (virgl.found() or opengl.found())
gbm = dependency('gbm', method: 'pkg-config', required: false)
endif
have_vhost_user_gpu = have_vhost_user_gpu and virgl.found() and opengl.found() and gbm.found()
gnutls = not_found
gnutls_crypto = not_found
if get_option('gnutls').enabled() or (get_option('gnutls').auto() and have_system)
# For general TLS support our min gnutls matches
# that implied by our platform support matrix
#
# For the crypto backends, we look for a newer
# gnutls:
#
# Version 3.6.8 is needed to get XTS
# Version 3.6.13 is needed to get PBKDF
# Version 3.6.14 is needed to get HW accelerated XTS
#
# If newer enough gnutls isn't available, we can
# still use a different crypto backend to satisfy
# the platform support requirements
gnutls_crypto = dependency('gnutls', version: '>=3.6.14',
method: 'pkg-config',
required: false)
if gnutls_crypto.found()
gnutls = gnutls_crypto
else
# Our min version if all we need is TLS
gnutls = dependency('gnutls', version: '>=3.5.18',
method: 'pkg-config',
required: get_option('gnutls'))
endif
endif
# We prefer use of gnutls for crypto, unless the options
# explicitly asked for nettle or gcrypt.
#
# If gnutls isn't available for crypto, then we'll prefer
# gcrypt over nettle for performance reasons.
gcrypt = not_found
nettle = not_found
hogweed = not_found
xts = 'none'
if get_option('nettle').enabled() and get_option('gcrypt').enabled()
error('Only one of gcrypt & nettle can be enabled')
endif
# Explicit nettle/gcrypt request, so ignore gnutls for crypto
if get_option('nettle').enabled() or get_option('gcrypt').enabled()
gnutls_crypto = not_found
endif
if not gnutls_crypto.found()
if (not get_option('gcrypt').auto() or have_system) and not get_option('nettle').enabled()
gcrypt = dependency('libgcrypt', version: '>=1.8',
method: 'config-tool',
required: get_option('gcrypt'))
# Debian has removed -lgpg-error from libgcrypt-config
# as it "spreads unnecessary dependencies" which in
# turn breaks static builds...
if gcrypt.found() and get_option('prefer_static')
gcrypt = declare_dependency(dependencies:
[gcrypt,
cc.find_library('gpg-error', required: true)],
version: gcrypt.version())
endif
endif
if (not get_option('nettle').auto() or have_system) and not gcrypt.found()
nettle = dependency('nettle', version: '>=3.4',
method: 'pkg-config',
required: get_option('nettle'))
if nettle.found() and not cc.has_header('nettle/xts.h', dependencies: nettle)
xts = 'private'
endif
endif
endif
gmp = dependency('gmp', required: false, method: 'pkg-config')
if nettle.found() and gmp.found()
hogweed = dependency('hogweed', version: '>=3.4',
method: 'pkg-config',
required: get_option('nettle'))
endif
gtk = not_found
gtkx11 = not_found
vte = not_found
have_gtk_clipboard = get_option('gtk_clipboard').enabled()
if not get_option('gtk').auto() or have_system
gtk = dependency('gtk+-3.0', version: '>=3.22.0',
method: 'pkg-config',
required: get_option('gtk'))
if gtk.found()
gtkx11 = dependency('gtk+-x11-3.0', version: '>=3.22.0',
method: 'pkg-config',
required: false)
gtk = declare_dependency(dependencies: [gtk, gtkx11],
version: gtk.version())
if not get_option('vte').auto() or have_system
vte = dependency('vte-2.91',
method: 'pkg-config',
required: get_option('vte'))
endif
elif have_gtk_clipboard
error('GTK clipboard requested, but GTK not found')
endif
endif
x11 = not_found
if gtkx11.found()
x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found())
endif
png = not_found
if get_option('png').allowed() and have_system
png = dependency('libpng', version: '>=1.6.34', required: get_option('png'),
method: 'pkg-config')
endif
vnc = not_found
jpeg = not_found
sasl = not_found
if get_option('vnc').allowed() and have_system
vnc = declare_dependency() # dummy dependency
jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
method: 'pkg-config')
sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
required: get_option('vnc_sasl'))
if sasl.found()
sasl = declare_dependency(dependencies: sasl,
compile_args: '-DSTRUCT_IOVEC_DEFINED')
endif
endif
pam = not_found
if not get_option('auth_pam').auto() or have_system
pam = cc.find_library('pam', has_headers: ['security/pam_appl.h'],
required: get_option('auth_pam'))
endif
if pam.found() and not cc.links('''
#include <stddef.h>
#include <security/pam_appl.h>
int main(void) {
const char *service_name = "qemu";
const char *user = "frank";
const struct pam_conv pam_conv = { 0 };
pam_handle_t *pamh = NULL;
pam_start(service_name, user, &pam_conv, &pamh);
return 0;
}''', dependencies: pam)
pam = not_found
if get_option('auth_pam').enabled()
error('could not link libpam')
else
warning('could not link libpam, disabling')
endif
endif
snappy = not_found
if not get_option('snappy').auto() or have_system
snappy = cc.find_library('snappy', has_headers: ['snappy-c.h'],
required: get_option('snappy'))
endif
if snappy.found() and not cc.links('''
#include <snappy-c.h>
int main(void) { snappy_max_compressed_length(4096); return 0; }''', dependencies: snappy)
snappy = not_found
if get_option('snappy').enabled()
error('could not link libsnappy')
else
warning('could not link libsnappy, disabling')
endif
endif
lzo = not_found
if not get_option('lzo').auto() or have_system
lzo = cc.find_library('lzo2', has_headers: ['lzo/lzo1x.h'],
required: get_option('lzo'))
endif
if lzo.found() and not cc.links('''
#include <lzo/lzo1x.h>
int main(void) { lzo_version(); return 0; }''', dependencies: lzo)
lzo = not_found
if get_option('lzo').enabled()
error('could not link liblzo2')
else
warning('could not link liblzo2, disabling')
endif
endif
numa = not_found
if not get_option('numa').auto() or have_system or have_tools
numa = cc.find_library('numa', has_headers: ['numa.h'],
required: get_option('numa'))
endif
if numa.found() and not cc.links('''
#include <numa.h>
int main(void) { return numa_available(); }
''', dependencies: numa)
numa = not_found
if get_option('numa').enabled()
error('could not link numa')
else
warning('could not link numa, disabling')
endif
endif
rdma = not_found
if not get_option('rdma').auto() or have_system
libumad = cc.find_library('ibumad', required: get_option('rdma'))
rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
required: get_option('rdma')),
cc.find_library('ibverbs', required: get_option('rdma')),
libumad]
rdma = declare_dependency(dependencies: rdma_libs)
foreach lib: rdma_libs
if not lib.found()
rdma = not_found
endif
endforeach
endif
xen = not_found
if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
xencontrol = dependency('xencontrol', required: false,
method: 'pkg-config')
if xencontrol.found()
xen_pc = declare_dependency(version: xencontrol.version(),
dependencies: [
xencontrol,
# disabler: true makes xen_pc.found() return false if any is not found
dependency('xenstore', required: false,
method: 'pkg-config',
disabler: true),
dependency('xenforeignmemory', required: false,
method: 'pkg-config',
disabler: true),
dependency('xengnttab', required: false,
method: 'pkg-config',
disabler: true),
dependency('xenevtchn', required: false,
method: 'pkg-config',
disabler: true),
dependency('xendevicemodel', required: false,
method: 'pkg-config',
disabler: true),
# optional, no "disabler: true"
dependency('xentoolcore', required: false,
method: 'pkg-config')])
if xen_pc.found()
xen = xen_pc
endif
endif
if not xen.found()
xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
xen_libs = {
'4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
'4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
'4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
'4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
'4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
}
xen_deps = {}
foreach ver: xen_tests
# cache the various library tests to avoid polluting the logs
xen_test_deps = []
foreach l: xen_libs[ver]
if l not in xen_deps
xen_deps += { l: cc.find_library(l, required: false) }
endif
xen_test_deps += xen_deps[l]
endforeach
# Use -D to pick just one of the test programs in scripts/xen-detect.c
xen_version = ver.split('.')
xen_ctrl_version = xen_version[0] + \
('0' + xen_version[1]).substring(-2) + \
('0' + xen_version[2]).substring(-2)
if cc.links(files('scripts/xen-detect.c'),
args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
dependencies: xen_test_deps)
xen = declare_dependency(version: ver, dependencies: xen_test_deps)
break
endif
endforeach
endif
if xen.found()
accelerators += 'CONFIG_XEN'
elif get_option('xen').enabled()
error('could not compile and link Xen test program')
endif
endif
have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
.require(xen.found(),
error_message: 'Xen PCI passthrough requested but Xen not enabled') \
.require(targetos == 'linux',
error_message: 'Xen PCI passthrough not available on this platform') \
.require(cpu == 'x86' or cpu == 'x86_64',
error_message: 'Xen PCI passthrough not available on this platform') \
.allowed()
cacard = not_found
if not get_option('smartcard').auto() or have_system
cacard = dependency('libcacard', required: get_option('smartcard'),
version: '>=2.5.1', method: 'pkg-config')
endif
u2f = not_found
if have_system
u2f = dependency('u2f-emu', required: get_option('u2f'),
method: 'pkg-config')
endif
canokey = not_found
if have_system
canokey = dependency('canokey-qemu', required: get_option('canokey'),
method: 'pkg-config')
endif
usbredir = not_found
if not get_option('usb_redir').auto() or have_system
usbredir = dependency('libusbredirparser-0.5', required: get_option('usb_redir'),
version: '>=0.6', method: 'pkg-config')
endif
libusb = not_found
if not get_option('libusb').auto() or have_system
libusb = dependency('libusb-1.0', required: get_option('libusb'),
version: '>=1.0.13', method: 'pkg-config')
endif
libpmem = not_found
if not get_option('libpmem').auto() or have_system
libpmem = dependency('libpmem', required: get_option('libpmem'),
method: 'pkg-config')
endif
libdaxctl = not_found
if not get_option('libdaxctl').auto() or have_system
libdaxctl = dependency('libdaxctl', required: get_option('libdaxctl'),
version: '>=57', method: 'pkg-config')
endif
tasn1 = not_found
if gnutls.found()
tasn1 = dependency('libtasn1',
method: 'pkg-config')
endif
keyutils = not_found
if get_option('keyring').enabled()
keyutils = dependency('libkeyutils', required: false, method: 'pkg-config')
endif
has_gettid = cc.has_function('gettid')
# libselinux
selinux = dependency('libselinux',
required: get_option('selinux'),
method: 'pkg-config')
# Malloc tests
malloc = []
if get_option('malloc') == 'system'
has_malloc_trim = \
get_option('malloc_trim').allowed() and \
cc.has_function('malloc_trim', prefix: '#include <malloc.h>')
else
has_malloc_trim = false
malloc = cc.find_library(get_option('malloc'), required: true)
endif
if not has_malloc_trim and get_option('malloc_trim').enabled()
if get_option('malloc') == 'system'
error('malloc_trim not available on this platform.')
else
error('malloc_trim not available with non-libc memory allocator')
endif
endif
gnu_source_prefix = '''
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
'''
# Check whether the glibc provides STATX_BASIC_STATS
has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_source_prefix)
# Check whether statx() provides mount ID information
has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
.require(targetos == 'linux',
error_message: 'vhost_user_blk_server requires linux') \
.require(have_vhost_user,
error_message: 'vhost_user_blk_server requires vhost-user support') \
.disable_auto_if(not have_tools and not have_system) \
.allowed()
if get_option('fuse').disabled() and get_option('fuse_lseek').enabled()
error('Cannot enable fuse-lseek while fuse is disabled')
endif
fuse = dependency('fuse3', required: get_option('fuse'),
version: '>=3.1', method: 'pkg-config')
fuse_lseek = not_found
if get_option('fuse_lseek').allowed()
if fuse.version().version_compare('>=3.8')
# Dummy dependency
fuse_lseek = declare_dependency()
elif get_option('fuse_lseek').enabled()
if fuse.found()
error('fuse-lseek requires libfuse >=3.8, found ' + fuse.version())
else
error('fuse-lseek requires libfuse, which was not found')
endif
endif
endif
have_libvduse = (targetos == 'linux')
if get_option('libvduse').enabled()
if targetos != 'linux'
error('libvduse requires linux')
endif
elif get_option('libvduse').disabled()
have_libvduse = false
endif
have_vduse_blk_export = (have_libvduse and targetos == 'linux')
if get_option('vduse_blk_export').enabled()
if targetos != 'linux'
error('vduse_blk_export requires linux')
elif not have_libvduse
error('vduse_blk_export requires libvduse support')
endif
elif get_option('vduse_blk_export').disabled()
have_vduse_blk_export = false
endif
# libbpf
libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
if libbpf.found() and not cc.links('''
#include <bpf/libbpf.h>
int main(void)
{
bpf_object__destroy_skeleton(NULL);
return 0;
}''', dependencies: libbpf)
libbpf = not_found
if get_option('bpf').enabled()
error('libbpf skeleton test failed')
else
warning('libbpf skeleton test failed, disabling')
endif
endif
# libxdp
libxdp = not_found
if not get_option('af_xdp').auto() or have_system
libxdp = dependency('libxdp', required: get_option('af_xdp'),
version: '>=1.4.0', method: 'pkg-config')
endif
# libdw
libdw = not_found
if not get_option('libdw').auto() or \
(not get_option('prefer_static') and (have_system or have_user))
libdw = dependency('libdw',
method: 'pkg-config',
required: get_option('libdw'))
endif
#################
# config-host.h #
#################
audio_drivers_selected = []
if have_system
audio_drivers_available = {
'alsa': alsa.found(),
'coreaudio': coreaudio.found(),
'dsound': dsound.found(),
'jack': jack.found(),
'oss': oss.found(),
'pa': pulse.found(),
'pipewire': pipewire.found(),
'sdl': sdl.found(),
'sndio': sndio.found(),
}
foreach k, v: audio_drivers_available
config_host_data.set('CONFIG_AUDIO_' + k.to_upper(), v)
endforeach
# Default to native drivers first, OSS second, SDL third
audio_drivers_priority = \
[ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
(targetos == 'linux' ? [] : [ 'sdl' ])
audio_drivers_default = []
foreach k: audio_drivers_priority
if audio_drivers_available[k]
audio_drivers_default += k
endif
endforeach
foreach k: get_option('audio_drv_list')
if k == 'default'
audio_drivers_selected += audio_drivers_default
elif not audio_drivers_available[k]
error('Audio driver "@0@" not available.'.format(k))
else
audio_drivers_selected += k
endif
endforeach
endif
config_host_data.set('CONFIG_AUDIO_DRIVERS',
'"' + '", "'.join(audio_drivers_selected) + '", ')
if get_option('cfi')
cfi_flags=[]
# Check for dependency on LTO
if not get_option('b_lto')
error('Selected Control-Flow Integrity but LTO is disabled')
endif
if enable_modules
error('Selected Control-Flow Integrity is not compatible with modules')
endif
# Check for cfi flags. CFI requires LTO so we can't use
# get_supported_arguments, but need a more complex "compiles" which allows
# custom arguments
if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
args: ['-flto', '-fsanitize=cfi-icall'] )
cfi_flags += '-fsanitize=cfi-icall'
else
error('-fsanitize=cfi-icall is not supported by the compiler')
endif
if cc.compiles('int main () { return 0; }',
name: '-fsanitize-cfi-icall-generalize-pointers',
args: ['-flto', '-fsanitize=cfi-icall',
'-fsanitize-cfi-icall-generalize-pointers'] )
cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
else
error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
endif
if get_option('cfi_debug')
if cc.compiles('int main () { return 0; }',
name: '-fno-sanitize-trap=cfi-icall',
args: ['-flto', '-fsanitize=cfi-icall',
'-fno-sanitize-trap=cfi-icall'] )
cfi_flags += '-fno-sanitize-trap=cfi-icall'
else
error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
endif
endif
add_global_arguments(cfi_flags, native: false, language: all_languages)
add_global_link_arguments(cfi_flags, native: false, language: all_languages)
endif
have_host_block_device = (targetos != 'darwin' or
cc.has_header('IOKit/storage/IOMedia.h'))
dbus_display = get_option('dbus_display') \
.require(gio.version().version_compare('>=2.64'),
error_message: '-display dbus requires glib>=2.64') \
.require(gdbus_codegen.found(),
error_message: gdbus_codegen_error.format('-display dbus')) \
.allowed()
have_virtfs = get_option('virtfs') \
.require(targetos == 'linux' or targetos == 'darwin',
error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
.require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
.require(targetos == 'darwin' or libattr.found(),
error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
.disable_auto_if(not have_tools and not have_system) \
.allowed()
have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
.require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
.require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
.disable_auto_if(not have_tools) \
.require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
.allowed()
if get_option('block_drv_ro_whitelist') == ''
config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '')
else
config_host_data.set('CONFIG_BDRV_RO_WHITELIST',
'"' + get_option('block_drv_ro_whitelist').replace(',', '", "') + '", ')
endif
if get_option('block_drv_rw_whitelist') == ''
config_host_data.set('CONFIG_BDRV_RW_WHITELIST', '')
else
config_host_data.set('CONFIG_BDRV_RW_WHITELIST',
'"' + get_option('block_drv_rw_whitelist').replace(',', '", "') + '", ')
endif
foreach k : get_option('trace_backends')
config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
endforeach
config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
config_host_data.set_quoted('CONFIG_TLS_PRIORITY', get_option('tls_priority'))
if iasl.found()
config_host_data.set_quoted('CONFIG_IASL', iasl.full_path())
endif
config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
qemu_firmwarepath = ''
foreach k : get_option('qemu_firmwarepath')
qemu_firmwarepath += '"' + get_option('prefix') / k + '", '
endforeach
config_host_data.set('CONFIG_QEMU_FIRMWAREPATH', qemu_firmwarepath)
config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
config_host_data.set_quoted('CONFIG_QEMU_ICONDIR', get_option('prefix') / qemu_icondir)
config_host_data.set_quoted('CONFIG_QEMU_LOCALEDIR', get_option('prefix') / get_option('localedir'))
config_host_data.set_quoted('CONFIG_QEMU_LOCALSTATEDIR', get_option('prefix') / get_option('localstatedir'))
config_host_data.set_quoted('CONFIG_QEMU_MODDIR', get_option('prefix') / qemu_moddir)
config_host_data.set_quoted('CONFIG_SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
if enable_modules
config_host_data.set('CONFIG_STAMP', run_command(
meson.current_source_dir() / 'scripts/qemu-stamp.py',
meson.project_version(), get_option('pkgversion'), '--',
meson.current_source_dir() / 'configure',
capture: true, check: true).stdout().strip())
endif
have_slirp_smbd = get_option('slirp_smbd') \
.require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
.allowed()
if have_slirp_smbd
smbd_path = get_option('smbd')
if smbd_path == ''
smbd_path = (targetos == 'sunos' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
endif
config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
endif
config_host_data.set('HOST_' + host_arch.to_upper(), 1)
if get_option('module_upgrades') and not enable_modules
error('Cannot enable module-upgrades as modules are not enabled')
endif
config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
config_host_data.set('CONFIG_ATTR', libattr.found())
config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
config_host_data.set('CONFIG_BRLAPI', brlapi.found())
config_host_data.set('CONFIG_BSD', targetos in bsd_oses)
config_host_data.set('CONFIG_COCOA', cocoa.found())
config_host_data.set('CONFIG_DARWIN', targetos == 'darwin')
config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
config_host_data.set('CONFIG_LIBUDEV', libudev.found())
config_host_data.set('CONFIG_LINUX', targetos == 'linux')
config_host_data.set('CONFIG_POSIX', targetos != 'windows')
config_host_data.set('CONFIG_WIN32', targetos == 'windows')
config_host_data.set('CONFIG_LZO', lzo.found())
config_host_data.set('CONFIG_MPATH', mpathpersist.found())
config_host_data.set('CONFIG_BLKIO', blkio.found())
if blkio.found()
config_host_data.set('CONFIG_BLKIO_VHOST_VDPA_FD',
blkio.version().version_compare('>=1.3.0'))
endif
config_host_data.set('CONFIG_CURL', curl.found())
config_host_data.set('CONFIG_CURSES', curses.found())
config_host_data.set('CONFIG_GBM', gbm.found())
config_host_data.set('CONFIG_GIO', gio.found())
config_host_data.set('CONFIG_GLUSTERFS', glusterfs.found())
if glusterfs.found()
config_host_data.set('CONFIG_GLUSTERFS_XLATOR_OPT', glusterfs.version().version_compare('>=4'))
config_host_data.set('CONFIG_GLUSTERFS_DISCARD', glusterfs.version().version_compare('>=5'))
config_host_data.set('CONFIG_GLUSTERFS_FALLOCATE', glusterfs.version().version_compare('>=6'))
config_host_data.set('CONFIG_GLUSTERFS_ZEROFILL', glusterfs.version().version_compare('>=6'))
config_host_data.set('CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT', glusterfs_ftruncate_has_stat)
config_host_data.set('CONFIG_GLUSTERFS_IOCB_HAS_STAT', glusterfs_iocb_has_stat)
endif
config_host_data.set('CONFIG_GTK', gtk.found())
config_host_data.set('CONFIG_VTE', vte.found())
config_host_data.set('CONFIG_GTK_CLIPBOARD', have_gtk_clipboard)
config_host_data.set('CONFIG_HEXAGON_IDEF_PARSER', get_option('hexagon_idef_parser'))
config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
config_host_data.set('CONFIG_EBPF', libbpf.found())
config_host_data.set('CONFIG_AF_XDP', libxdp.found())
config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
config_host_data.set('CONFIG_LIBNFS', libnfs.found())
config_host_data.set('CONFIG_LIBSSH', libssh.found())
config_host_data.set('CONFIG_LINUX_AIO', libaio.found())
config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
config_host_data.set('CONFIG_MODULES', enable_modules)
config_host_data.set('CONFIG_NUMA', numa.found())
if numa.found()
config_host_data.set('HAVE_NUMA_HAS_PREFERRED_MANY',
cc.has_function('numa_has_preferred_many',
dependencies: numa))
endif
config_host_data.set('CONFIG_OPENGL', opengl.found())
config_host_data.set('CONFIG_PLUGIN', get_option('plugins'))
config_host_data.set('CONFIG_RBD', rbd.found())
config_host_data.set('CONFIG_RDMA', rdma.found())
config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
config_host_data.set('CONFIG_SDL', sdl.found())
config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
config_host_data.set('CONFIG_SECCOMP', seccomp.found())
if seccomp.found()
config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
endif
config_host_data.set('CONFIG_SNAPPY', snappy.found())
config_host_data.set('CONFIG_SOLARIS', targetos == 'sunos')
if get_option('tcg').allowed()
config_host_data.set('CONFIG_TCG', 1)
config_host_data.set('CONFIG_TCG_INTERPRETER', tcg_arch == 'tci')
endif
config_host_data.set('CONFIG_TPM', have_tpm)
config_host_data.set('CONFIG_TSAN', get_option('tsan'))
config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
config_host_data.set('CONFIG_VDE', vde.found())
config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
config_host_data.set('CONFIG_VHOST_NET_USER', have_vhost_net_user)
config_host_data.set('CONFIG_VHOST_NET_VDPA', have_vhost_net_vdpa)
config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
config_host_data.set('CONFIG_VMNET', vmnet.found())
config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
config_host_data.set('CONFIG_VDUSE_BLK_EXPORT', have_vduse_blk_export)
config_host_data.set('CONFIG_PNG', png.found())
config_host_data.set('CONFIG_VNC', vnc.found())
config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
config_host_data.set('CONFIG_VNC_SASL', sasl.found())
config_host_data.set('CONFIG_VIRTFS', have_virtfs)
config_host_data.set('CONFIG_VTE', vte.found())
config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
config_host_data.set('CONFIG_GETTID', has_gettid)
config_host_data.set('CONFIG_GNUTLS', gnutls.found())
config_host_data.set('CONFIG_GNUTLS_CRYPTO', gnutls_crypto.found())
config_host_data.set('CONFIG_TASN1', tasn1.found())
config_host_data.set('CONFIG_GCRYPT', gcrypt.found())
config_host_data.set('CONFIG_NETTLE', nettle.found())
config_host_data.set('CONFIG_HOGWEED', hogweed.found())
config_host_data.set('CONFIG_QEMU_PRIVATE_XTS', xts == 'private')
config_host_data.set('CONFIG_MALLOC_TRIM', has_malloc_trim)
config_host_data.set('CONFIG_STATX', has_statx)
config_host_data.set('CONFIG_STATX_MNT_ID', has_statx_mnt_id)
config_host_data.set('CONFIG_ZSTD', zstd.found())
config_host_data.set('CONFIG_FUSE', fuse.found())
config_host_data.set('CONFIG_FUSE_LSEEK', fuse_lseek.found())
config_host_data.set('CONFIG_SPICE_PROTOCOL', spice_protocol.found())
if spice_protocol.found()
config_host_data.set('CONFIG_SPICE_PROTOCOL_MAJOR', spice_protocol.version().split('.')[0])
config_host_data.set('CONFIG_SPICE_PROTOCOL_MINOR', spice_protocol.version().split('.')[1])
config_host_data.set('CONFIG_SPICE_PROTOCOL_MICRO', spice_protocol.version().split('.')[2])
endif
config_host_data.set('CONFIG_SPICE', spice.found())
config_host_data.set('CONFIG_X11', x11.found())
config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
config_host_data.set('CONFIG_CFI', get_option('cfi'))
config_host_data.set('CONFIG_SELINUX', selinux.found())
config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
config_host_data.set('CONFIG_LIBDW', libdw.found())
if xen.found()
# protect from xen.version() having less than three components
xen_version = xen.version().split('.') + ['0', '0']
xen_ctrl_version = xen_version[0] + \
('0' + xen_version[1]).substring(-2) + \
('0' + xen_version[2]).substring(-2)
config_host_data.set('CONFIG_XEN_CTRL_INTERFACE_VERSION', xen_ctrl_version)
endif
config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
have_coroutine_pool = get_option('coroutine_pool')
if get_option('debug_stack_usage') and have_coroutine_pool
message('Disabling coroutine pool to measure stack usage')
have_coroutine_pool = false
endif
config_host_data.set10('CONFIG_COROUTINE_POOL', have_coroutine_pool)
config_host_data.set('CONFIG_DEBUG_GRAPH_LOCK', get_option('debug_graph_lock'))
config_host_data.set('CONFIG_DEBUG_MUTEX', get_option('debug_mutex'))
config_host_data.set('CONFIG_DEBUG_STACK_USAGE', get_option('debug_stack_usage'))
config_host_data.set('CONFIG_DEBUG_TCG', get_option('debug_tcg'))
config_host_data.set('CONFIG_GPROF', get_option('gprof'))
config_host_data.set('CONFIG_LIVE_BLOCK_MIGRATION', get_option('live_block_migration').allowed())
config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug'))
config_host_data.set('CONFIG_REPLICATION', get_option('replication').allowed())
# has_header
config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
if targetos == 'windows'
config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
endif
# has_function
config_host_data.set('CONFIG_CLOSE_RANGE', cc.has_function('close_range'))
config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
config_host_data.set('CONFIG_POSIX_FALLOCATE', cc.has_function('posix_fallocate'))
config_host_data.set('CONFIG_GETCPU', cc.has_function('getcpu', prefix: gnu_source_prefix))
config_host_data.set('CONFIG_SCHED_GETCPU', cc.has_function('sched_getcpu', prefix: '#include <sched.h>'))
# Note that we need to specify prefix: here to avoid incorrectly
# thinking that Windows has posix_memalign()
config_host_data.set('CONFIG_POSIX_MEMALIGN', cc.has_function('posix_memalign', prefix: '#include <stdlib.h>'))
config_host_data.set('CONFIG_ALIGNED_MALLOC', cc.has_function('_aligned_malloc'))
config_host_data.set('CONFIG_VALLOC', cc.has_function('valloc'))
config_host_data.set('CONFIG_MEMALIGN', cc.has_function('memalign'))
config_host_data.set('CONFIG_PPOLL', cc.has_function('ppoll'))
config_host_data.set('CONFIG_PREADV', cc.has_function('preadv', prefix: '#include <sys/uio.h>'))
config_host_data.set('CONFIG_PTHREAD_FCHDIR_NP', cc.has_function('pthread_fchdir_np'))
config_host_data.set('CONFIG_SENDFILE', cc.has_function('sendfile'))
config_host_data.set('CONFIG_SETNS', cc.has_function('setns') and cc.has_function('unshare'))
config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
if rbd.found()
config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',
cc.has_function('rbd_namespace_exists',
dependencies: rbd,
prefix: '#include <rbd/librbd.h>'))
endif
if rdma.found()
config_host_data.set('HAVE_IBV_ADVISE_MR',
cc.has_function('ibv_advise_mr',
dependencies: rdma,
prefix: '#include <infiniband/verbs.h>'))
endif
have_asan_fiber = false
if get_option('sanitizers') and \
not cc.has_function('__sanitizer_start_switch_fiber',
args: '-fsanitize=address',
prefix: '#include <sanitizer/asan_interface.h>')
warning('Missing ASAN due to missing fiber annotation interface')
warning('Without code annotation, the report may be inferior.')
else
have_asan_fiber = true
endif
config_host_data.set('CONFIG_ASAN_IFACE_FIBER', have_asan_fiber)
# has_header_symbol
config_host_data.set('CONFIG_BLKZONED',
cc.has_header_symbol('linux/blkzoned.h', 'BLKOPENZONE'))
config_host_data.set('CONFIG_EPOLL_CREATE1',
cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
config_host_data.set('CONFIG_FALLOCATE_ZERO_RANGE',
cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_ZERO_RANGE'))
config_host_data.set('CONFIG_FIEMAP',
cc.has_header('linux/fiemap.h') and
cc.has_header_symbol('linux/fs.h', 'FS_IOC_FIEMAP'))
config_host_data.set('CONFIG_GETRANDOM',
cc.has_function('getrandom') and
cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
config_host_data.set('CONFIG_INOTIFY',
cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
config_host_data.set('CONFIG_INOTIFY1',
cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
config_host_data.set('CONFIG_PRCTL_PR_SET_TIMERSLACK',
cc.has_header_symbol('sys/prctl.h', 'PR_SET_TIMERSLACK'))
config_host_data.set('CONFIG_RTNETLINK',
cc.has_header_symbol('linux/rtnetlink.h', 'IFLA_PROTO_DOWN'))
config_host_data.set('CONFIG_SYSMACROS',
cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
config_host_data.set('HAVE_OPTRESET',
cc.has_header_symbol('getopt.h', 'optreset'))
config_host_data.set('HAVE_IPPROTO_MPTCP',
cc.has_header_symbol('netinet/in.h', 'IPPROTO_MPTCP'))
# has_member
config_host_data.set('HAVE_SIGEV_NOTIFY_THREAD_ID',
cc.has_member('struct sigevent', 'sigev_notify_thread_id',
prefix: '#include <signal.h>'))
config_host_data.set('HAVE_STRUCT_STAT_ST_ATIM',
cc.has_member('struct stat', 'st_atim',
prefix: '#include <sys/stat.h>'))
config_host_data.set('HAVE_BLK_ZONE_REP_CAPACITY',
cc.has_member('struct blk_zone', 'capacity',
prefix: '#include <linux/blkzoned.h>'))
# has_type
config_host_data.set('CONFIG_IOVEC',
cc.has_type('struct iovec',
prefix: '#include <sys/uio.h>'))
config_host_data.set('HAVE_UTMPX',
cc.has_type('struct utmpx',
prefix: '#include <utmpx.h>'))
config_host_data.set('CONFIG_EVENTFD', cc.links('''
#include <sys/eventfd.h>
int main(void) { return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); }'''))
config_host_data.set('CONFIG_FDATASYNC', cc.links(gnu_source_prefix + '''
#include <unistd.h>
int main(void) {
#if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
return fdatasync(0);
#else
#error Not supported
#endif
}'''))
has_madvise = cc.links(gnu_source_prefix + '''
#include <sys/types.h>
#include <sys/mman.h>
#include <stddef.h>
int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }''')
missing_madvise_proto = false
if has_madvise
# Some platforms (illumos and Solaris before Solaris 11) provide madvise()
# but forget to prototype it. In this case, has_madvise will be true (the
# test program links despite a compile warning). To detect the
# missing-prototype case, we try again with a definitely-bogus prototype.
# This will only compile if the system headers don't provide the prototype;
# otherwise the conflicting prototypes will cause a compiler error.
missing_madvise_proto = cc.links(gnu_source_prefix + '''
#include <sys/types.h>
#include <sys/mman.h>
#include <stddef.h>
extern int madvise(int);
int main(void) { return madvise(0); }''')
endif
config_host_data.set('CONFIG_MADVISE', has_madvise)
config_host_data.set('HAVE_MADVISE_WITHOUT_PROTOTYPE', missing_madvise_proto)
config_host_data.set('CONFIG_MEMFD', cc.links(gnu_source_prefix + '''
#include <sys/mman.h>
int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
#include <fcntl.h>
#if !defined(AT_EMPTY_PATH)
# error missing definition
#else
int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
#endif'''))
config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
#include <sys/mman.h>
#include <stddef.h>
int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links(gnu_source_prefix + '''
#include <pthread.h>
static void *f(void *p) { return NULL; }
int main(void)
{
pthread_t thread;
pthread_create(&thread, 0, f, 0);
pthread_setname_np(thread, "QEMU");
return 0;
}''', dependencies: threads))
config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links(gnu_source_prefix + '''
#include <pthread.h>
static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
int main(void)
{
pthread_t thread;
pthread_create(&thread, 0, f, 0);
return 0;
}''', dependencies: threads))
config_host_data.set('CONFIG_PTHREAD_SET_NAME_NP', cc.links(gnu_source_prefix + '''
#include <pthread.h>
#include <pthread_np.h>
static void *f(void *p) { return NULL; }
int main(void)
{
pthread_t thread;
pthread_create(&thread, 0, f, 0);
pthread_set_name_np(thread, "QEMU");
return 0;
}''', dependencies: threads))
config_host_data.set('CONFIG_PTHREAD_CONDATTR_SETCLOCK', cc.links(gnu_source_prefix + '''
#include <pthread.h>
#include <time.h>
int main(void)
{
pthread_condattr_t attr
pthread_condattr_init(&attr);
pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
return 0;
}''', dependencies: threads))
config_host_data.set('CONFIG_PTHREAD_AFFINITY_NP', cc.links(gnu_source_prefix + '''
#include <pthread.h>
static void *f(void *p) { return NULL; }
int main(void)
{
int setsize = CPU_ALLOC_SIZE(64);
pthread_t thread;
cpu_set_t *cpuset;
pthread_create(&thread, 0, f, 0);
cpuset = CPU_ALLOC(64);
CPU_ZERO_S(setsize, cpuset);
pthread_setaffinity_np(thread, setsize, cpuset);
pthread_getaffinity_np(thread, setsize, cpuset);
CPU_FREE(cpuset);
return 0;
}''', dependencies: threads))
config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
#include <sys/signalfd.h>
#include <stddef.h>
int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
#include <unistd.h>
#include <fcntl.h>
#include <limits.h>
int main(void)
{
int len, fd = 0;
len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
return 0;
}'''))
config_host_data.set('HAVE_MLOCKALL', cc.links(gnu_source_prefix + '''
#include <sys/mman.h>
int main(void) {
return mlockall(MCL_FUTURE);
}'''))
have_l2tpv3 = false
if get_option('l2tpv3').allowed() and have_system
have_l2tpv3 = cc.has_type('struct mmsghdr',
prefix: gnu_source_prefix + '''
#include <sys/socket.h>
#include <linux/ip.h>''')
endif
config_host_data.set('CONFIG_L2TPV3', have_l2tpv3)
have_netmap = false
if get_option('netmap').allowed() and have_system
have_netmap = cc.compiles('''
#include <inttypes.h>
#include <net/if.h>
#include <net/netmap.h>
#include <net/netmap_user.h>
#if (NETMAP_API < 11) || (NETMAP_API > 15)
#error
#endif
int main(void) { return 0; }''')
if not have_netmap and get_option('netmap').enabled()
error('Netmap headers not available')
endif
endif
config_host_data.set('CONFIG_NETMAP', have_netmap)
# Work around a system header bug with some kernel/XFS header
# versions where they both try to define 'struct fsxattr':
# xfs headers will not try to redefine structs from linux headers
# if this macro is set.
config_host_data.set('HAVE_FSXATTR', cc.links('''
#include <linux/fs.h>
struct fsxattr foo;
int main(void) {
return 0;
}'''))
# Some versions of Mac OS X incorrectly define SIZE_MAX
config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''
#include <stdint.h>
#include <stdio.h>
int main(void) {
return printf("%zu", SIZE_MAX);
}''', args: ['-Werror']))
# See if 64-bit atomic operations are supported.
# Note that without __atomic builtins, we can only
# assume atomic loads/stores max at pointer size.
config_host_data.set('CONFIG_ATOMIC64', cc.links('''
#include <stdint.h>
int main(void)
{
uint64_t x = 0, y = 0;
y = __atomic_load_n(&x, __ATOMIC_RELAXED);
__atomic_store_n(&x, y, __ATOMIC_RELAXED);
__atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
__atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
__atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
return 0;
}'''))
has_int128_type = cc.compiles('''
__int128_t a;
__uint128_t b;
int main(void) { b = a; }''')
config_host_data.set('CONFIG_INT128_TYPE', has_int128_type)
has_int128 = has_int128_type and cc.links('''
__int128_t a;
__uint128_t b;
int main (void) {
a = a + b;
b = a * b;
a = a * a;
return 0;
}''')
config_host_data.set('CONFIG_INT128', has_int128)
if has_int128_type
# "do we have 128-bit atomics which are handled inline and specifically not
# via libatomic". The reason we can't use libatomic is documented in the
# comment starting "GCC is a house divided" in include/qemu/atomic128.h.
# We only care about these operations on 16-byte aligned pointers, so
# force 16-byte alignment of the pointer, which may be greater than
# __alignof(unsigned __int128) for the host.
atomic_test_128 = '''
int main(int ac, char **av) {
__uint128_t *p = __builtin_assume_aligned(av[ac - 1], 16);
p[1] = __atomic_load_n(&p[0], __ATOMIC_RELAXED);
__atomic_store_n(&p[2], p[3], __ATOMIC_RELAXED);
__atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
return 0;
}'''
has_atomic128 = cc.links(atomic_test_128)
config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
if not has_atomic128
# Even with __builtin_assume_aligned, the above test may have failed
# without optimization enabled. Try again with optimizations locally
# enabled for the function. See
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
if not has_atomic128_opt
config_host_data.set('CONFIG_CMPXCHG128', cc.links('''
int main(void)
{
__uint128_t x = 0, y = 0;
__sync_val_compare_and_swap_16(&x, y, x);
return 0;
}
'''))
endif
endif
endif
config_host_data.set('CONFIG_GETAUXVAL', cc.links(gnu_source_prefix + '''
#include <sys/auxv.h>
int main(void) {
return getauxval(AT_HWCAP) == 0;
}'''))
config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
#include <linux/usbdevice_fs.h>
#ifndef USBDEVFS_GET_CAPABILITIES
#error "USBDEVFS_GET_CAPABILITIES undefined"
#endif
#ifndef USBDEVFS_DISCONNECT_CLAIM
#error "USBDEVFS_DISCONNECT_CLAIM undefined"
#endif
int main(void) { return 0; }'''))
have_keyring = get_option('keyring') \
.require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
.require(cc.compiles('''
#include <errno.h>
#include <asm/unistd.h>
#include <linux/keyctl.h>
#include <sys/syscall.h>
#include <unistd.h>
int main(void) {
return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
}'''), error_message: 'keyctl syscall not available on this system').allowed()
config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
have_cpuid_h = cc.links('''
#include <cpuid.h>
int main(void) {
unsigned a, b, c, d;
unsigned max = __get_cpuid_max(0, 0);
if (max >= 1) {
__cpuid(1, a, b, c, d);
}
if (max >= 7) {
__cpuid_count(7, 0, a, b, c, d);
}
return 0;
}''')
config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
.require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
.require(cc.links('''
#include <cpuid.h>
#include <immintrin.h>
static int __attribute__((target("avx2"))) bar(void *a) {
__m256i x = *(__m256i *)a;
return _mm256_testz_si256(x, x);
}
int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
'''), error_message: 'AVX2 not available').allowed())
config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
.require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
.require(cc.links('''
#include <cpuid.h>
#include <immintrin.h>
static int __attribute__((target("avx512f"))) bar(void *a) {
__m512i x = *(__m512i *)a;
return _mm512_test_epi64_mask(x, x);
}
int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
'''), error_message: 'AVX512F not available').allowed())
config_host_data.set('CONFIG_AVX512BW_OPT', get_option('avx512bw') \
.require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512BW') \
.require(cc.links('''
#include <cpuid.h>
#include <immintrin.h>
static int __attribute__((target("avx512bw"))) bar(void *a) {
__m512i *x = a;
__m512i res= _mm512_abs_epi8(*x);
return res[1];
}
int main(int argc, char *argv[]) { return bar(argv[0]); }
'''), error_message: 'AVX512BW not available').allowed())
# For both AArch64 and AArch32, detect if builtins are available.
config_host_data.set('CONFIG_ARM_AES_BUILTIN', cc.compiles('''
#include <arm_neon.h>
#ifndef __ARM_FEATURE_AES
__attribute__((target("+crypto")))
#endif
void foo(uint8x16_t *p) { *p = vaesmcq_u8(*p); }
'''))
have_pvrdma = get_option('pvrdma') \
.require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics libraries') \
.require(cc.compiles(gnu_source_prefix + '''
#include <sys/mman.h>
int main(void)
{
char buf = 0;
void *addr = &buf;
addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
return 0;
}'''), error_message: 'PVRDMA requires mremap').allowed()
if have_pvrdma
config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
#include <infiniband/verbs.h>
int main(void)
{
struct ibv_mr *mr;
struct ibv_pd *pd = NULL;
size_t length = 10;
uint64_t iova = 0;
int access = 0;
void *addr = NULL;
mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
ibv_dereg_mr(mr);
return 0;
}'''))
endif
if get_option('membarrier').disabled()
have_membarrier = false
elif targetos == 'windows'
have_membarrier = true
elif targetos == 'linux'
have_membarrier = cc.compiles('''
#include <linux/membarrier.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <stdlib.h>
int main(void) {
syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
exit(0);
}''')
endif
config_host_data.set('CONFIG_MEMBARRIER', get_option('membarrier') \
.require(have_membarrier, error_message: 'membarrier system call not available') \
.allowed())
have_afalg = get_option('crypto_afalg') \
.require(cc.compiles(gnu_source_prefix + '''
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <linux/if_alg.h>
int main(void) {
int sock;
sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
return sock;
}
'''), error_message: 'AF_ALG requested but could not be detected').allowed()
config_host_data.set('CONFIG_AF_ALG', have_afalg)
config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
'linux/vm_sockets.h', 'AF_VSOCK',
prefix: '#include <sys/socket.h>',
))
have_vss = false
have_vss_sdk = false # old xp/2003 SDK
if targetos == 'windows' and 'cpp' in all_languages
have_vss = cxx.compiles('''
#define __MIDL_user_allocate_free_DEFINED__
#include <vss.h>
int main(void) { return VSS_CTX_BACKUP; }''')
have_vss_sdk = cxx.has_header('vscoordint.h')
endif
config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
# Older versions of MinGW do not import _lock_file and _unlock_file properly.
# This was fixed for v6.0.0 with commit b48e3ac8969d.
if targetos == 'windows'
config_host_data.set('HAVE__LOCK_FILE', cc.links('''
#include <stdio.h>
int main(void) {
_lock_file(NULL);
_unlock_file(NULL);
return 0;
}''', name: '_lock_file and _unlock_file'))
endif
if targetos == 'windows'
mingw_has_setjmp_longjmp = cc.links('''
#include <setjmp.h>
int main(void) {
/*
* These functions are not available in setjmp header, but may be
* available at link time, from libmingwex.a.
*/
extern int __mingw_setjmp(jmp_buf);
extern void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
jmp_buf env;
__mingw_setjmp(env);
__mingw_longjmp(env, 0);
}
''', name: 'mingw setjmp and longjmp')
if cpu == 'aarch64' and not mingw_has_setjmp_longjmp
error('mingw must provide setjmp/longjmp for windows-arm64')
endif
endif
########################
# Target configuration #
########################
minikconf = find_program('scripts/minikconf.py')
config_targetos = {
(targetos == 'windows' ? 'CONFIG_WIN32' : 'CONFIG_POSIX'): 'y'
}
if targetos == 'darwin'
config_targetos += {'CONFIG_DARWIN': 'y'}
elif targetos == 'linux'
config_targetos += {'CONFIG_LINUX': 'y'}
endif
if targetos in bsd_oses
config_targetos += {'CONFIG_BSD': 'y'}
endif
config_all = {}
config_all_devices = {}
config_all_disas = {}
config_devices_mak_list = []
config_devices_h = {}
config_target_h = {}
config_target_mak = {}
disassemblers = {
'alpha' : ['CONFIG_ALPHA_DIS'],
'avr' : ['CONFIG_AVR_DIS'],
'cris' : ['CONFIG_CRIS_DIS'],
'hexagon' : ['CONFIG_HEXAGON_DIS'],
'hppa' : ['CONFIG_HPPA_DIS'],
'i386' : ['CONFIG_I386_DIS'],
'x86_64' : ['CONFIG_I386_DIS'],
'm68k' : ['CONFIG_M68K_DIS'],
'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
'mips' : ['CONFIG_MIPS_DIS'],
'nios2' : ['CONFIG_NIOS2_DIS'],
'or1k' : ['CONFIG_OPENRISC_DIS'],
'ppc' : ['CONFIG_PPC_DIS'],
'riscv' : ['CONFIG_RISCV_DIS'],
'rx' : ['CONFIG_RX_DIS'],
's390' : ['CONFIG_S390_DIS'],
'sh4' : ['CONFIG_SH4_DIS'],
'sparc' : ['CONFIG_SPARC_DIS'],
'xtensa' : ['CONFIG_XTENSA_DIS'],
'loongarch' : ['CONFIG_LOONGARCH_DIS'],
}
have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
host_kconfig = \
(get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
(have_tpm ? ['CONFIG_TPM=y'] : []) + \
(spice.found() ? ['CONFIG_SPICE=y'] : []) + \
(have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
(opengl.found() ? ['CONFIG_OPENGL=y'] : []) + \
(x11.found() ? ['CONFIG_X11=y'] : []) + \
(have_vhost_user ? ['CONFIG_VHOST_USER=y'] : []) + \
(have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
(have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
(have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
(targetos == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
(have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
(multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
(vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
default_targets = 'CONFIG_DEFAULT_TARGETS' in config_host
actual_target_dirs = []
fdt_required = []
foreach target : target_dirs
config_target = { 'TARGET_NAME': target.split('-')[0] }
if target.endswith('linux-user')
if targetos != 'linux'
if default_targets
continue
endif
error('Target @0@ is only available on a Linux host'.format(target))
endif
config_target += { 'CONFIG_LINUX_USER': 'y' }
elif target.endswith('bsd-user')
if targetos not in bsd_oses
if default_targets
continue
endif
error('Target @0@ is only available on a BSD host'.format(target))
endif
config_target += { 'CONFIG_BSD_USER': 'y' }
elif target.endswith('softmmu')
config_target += { 'CONFIG_SYSTEM_ONLY': 'y' }
config_target += { 'CONFIG_SOFTMMU': 'y' }
endif
if target.endswith('-user')
config_target += {
'CONFIG_USER_ONLY': 'y',
'CONFIG_QEMU_INTERP_PREFIX':
get_option('interp_prefix').replace('%M', config_target['TARGET_NAME'])
}
endif
accel_kconfig = []
foreach sym: accelerators
if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
config_target += { sym: 'y' }
config_all += { sym: 'y' }
if target in modular_tcg
config_target += { 'CONFIG_TCG_MODULAR': 'y' }
else
config_target += { 'CONFIG_TCG_BUILTIN': 'y' }
endif
accel_kconfig += [ sym + '=y' ]
endif
endforeach
if accel_kconfig.length() == 0
if default_targets
continue
endif
error('No accelerator available for target @0@'.format(target))
endif
actual_target_dirs += target
config_target += keyval.load('configs/targets' / target + '.mak')
config_target += { 'TARGET_' + config_target['TARGET_ARCH'].to_upper(): 'y' }
if 'TARGET_NEED_FDT' in config_target
fdt_required += target
endif
# Add default keys
if 'TARGET_BASE_ARCH' not in config_target
config_target += {'TARGET_BASE_ARCH': config_target['TARGET_ARCH']}
endif
if 'TARGET_ABI_DIR' not in config_target
config_target += {'TARGET_ABI_DIR': config_target['TARGET_ARCH']}
endif
if 'TARGET_BIG_ENDIAN' not in config_target
config_target += {'TARGET_BIG_ENDIAN': 'n'}
endif
foreach k, v: disassemblers
if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
foreach sym: v
config_target += { sym: 'y' }
config_all_disas += { sym: 'y' }
endforeach
endif
endforeach
config_target_data = configuration_data()
foreach k, v: config_target
if not k.startswith('TARGET_') and not k.startswith('CONFIG_')
# do nothing
elif ignored.contains(k)
# do nothing
elif k == 'TARGET_BASE_ARCH'
# Note that TARGET_BASE_ARCH ends up in config-target.h but it is
# not used to select files from sourcesets.
config_target_data.set('TARGET_' + v.to_upper(), 1)
elif k == 'TARGET_NAME' or k == 'CONFIG_QEMU_INTERP_PREFIX'
config_target_data.set_quoted(k, v)
elif v == 'y'
config_target_data.set(k, 1)
elif v == 'n'
config_target_data.set(k, 0)
else
config_target_data.set(k, v)
endif
endforeach
config_target_data.set('QEMU_ARCH',
'QEMU_ARCH_' + config_target['TARGET_BASE_ARCH'].to_upper())
config_target_h += {target: configure_file(output: target + '-config-target.h',
configuration: config_target_data)}
if target.endswith('-softmmu')
config_input = meson.get_external_property(target, 'default')
config_devices_mak = target + '-config-devices.mak'
config_devices_mak = configure_file(
input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'],
output: config_devices_mak,
depfile: config_devices_mak + '.d',
capture: true,
command: [minikconf,
get_option('default_devices') ? '--defconfig' : '--allnoconfig',
config_devices_mak, '@DEPFILE@', '@INPUT@',
host_kconfig, accel_kconfig,
'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
config_devices_data = configuration_data()
config_devices = keyval.load(config_devices_mak)
foreach k, v: config_devices
config_devices_data.set(k, 1)
endforeach
config_devices_mak_list += config_devices_mak
config_devices_h += {target: configure_file(output: target + '-config-devices.h',
configuration: config_devices_data)}
config_target += config_devices
config_all_devices += config_devices
endif
config_target_mak += {target: config_target}
endforeach
target_dirs = actual_target_dirs
# This configuration is used to build files that are shared by
# multiple binaries, and then extracted out of the "common"
# static_library target.
#
# We do not use all_sources()/all_dependencies(), because it would
# build literally all source files, including devices only used by
# targets that are not built for this compilation. The CONFIG_ALL
# pseudo symbol replaces it.
config_all += config_all_devices
config_all += config_targetos
config_all += config_all_disas
config_all += {
'CONFIG_XEN': xen.found(),
'CONFIG_SYSTEM_ONLY': have_system,
'CONFIG_USER_ONLY': have_user,
'CONFIG_ALL': true,
}
target_configs_h = []
foreach target: target_dirs
target_configs_h += config_target_h[target]
target_configs_h += config_devices_h.get(target, [])
endforeach
genh += custom_target('config-poison.h',
input: [target_configs_h],
output: 'config-poison.h',
capture: true,
command: [find_program('scripts/make-config-poison.sh'),
target_configs_h])
##############
# Submodules #
##############
capstone = not_found
if not get_option('capstone').auto() or have_system or have_user
capstone = dependency('capstone', version: '>=3.0.5',
method: 'pkg-config',
required: get_option('capstone'))
# Some versions of capstone have broken pkg-config file
# that reports a wrong -I path, causing the #include to
# fail later. If the system has such a broken version
# do not use it.
if capstone.found() and not cc.compiles('#include <capstone.h>',
dependencies: [capstone])
capstone = not_found
if get_option('capstone').enabled()
error('capstone requested, but it does not appear to work')
endif
endif
endif
libvfio_user_dep = not_found
if have_system and vfio_user_server_allowed
libvfio_user_proj = subproject('libvfio-user', required: true)
libvfio_user_dep = libvfio_user_proj.get_variable('libvfio_user_dep')
endif
fdt = not_found
fdt_opt = get_option('fdt')
if fdt_required.length() > 0 or fdt_opt == 'enabled'
if fdt_opt == 'disabled'
error('fdt disabled but required by targets ' + ', '.join(fdt_required))
endif
if fdt_opt in ['enabled', 'auto', 'system']
fdt = cc.find_library('fdt', required: fdt_opt == 'system')
if fdt.found() and cc.links('''
#include <libfdt.h>
#include <libfdt_env.h>
int main(void) { fdt_find_max_phandle(NULL, NULL); return 0; }''',
dependencies: fdt)
fdt_opt = 'system'
elif fdt_opt == 'system'
error('system libfdt requested, but it is too old (1.5.1 or newer required)')
else
fdt_opt = 'internal'
fdt = not_found
endif
endif
if not fdt.found()
assert(fdt_opt == 'internal')
libfdt_proj = subproject('dtc', required: true,
default_options: ['tools=false', 'yaml=disabled',
'python=disabled', 'default_library=static'])
fdt = libfdt_proj.get_variable('libfdt_dep')
endif
else
fdt_opt = 'disabled'
endif
config_host_data.set('CONFIG_CAPSTONE', capstone.found())
config_host_data.set('CONFIG_FDT', fdt.found())
config_host_data.set('CONFIG_SLIRP', slirp.found())
#####################
# Generated sources #
#####################
genh += configure_file(output: 'config-host.h', configuration: config_host_data)
hxtool = find_program('scripts/hxtool')
shaderinclude = find_program('scripts/shaderinclude.py')
qapi_gen = find_program('scripts/qapi-gen.py')
qapi_gen_depends = [ meson.current_source_dir() / 'scripts/qapi/__init__.py',
meson.current_source_dir() / 'scripts/qapi/commands.py',
meson.current_source_dir() / 'scripts/qapi/common.py',
meson.current_source_dir() / 'scripts/qapi/error.py',
meson.current_source_dir() / 'scripts/qapi/events.py',
meson.current_source_dir() / 'scripts/qapi/expr.py',
meson.current_source_dir() / 'scripts/qapi/gen.py',
meson.current_source_dir() / 'scripts/qapi/introspect.py',
meson.current_source_dir() / 'scripts/qapi/main.py',
meson.current_source_dir() / 'scripts/qapi/parser.py',
meson.current_source_dir() / 'scripts/qapi/schema.py',
meson.current_source_dir() / 'scripts/qapi/source.py',
meson.current_source_dir() / 'scripts/qapi/types.py',
meson.current_source_dir() / 'scripts/qapi/visit.py',
meson.current_source_dir() / 'scripts/qapi-gen.py'
]
tracetool = [
python, files('scripts/tracetool.py'),
'--backend=' + ','.join(get_option('trace_backends'))
]
tracetool_depends = files(
'scripts/tracetool/backend/log.py',
'scripts/tracetool/backend/__init__.py',
'scripts/tracetool/backend/dtrace.py',
'scripts/tracetool/backend/ftrace.py',
'scripts/tracetool/backend/simple.py',
'scripts/tracetool/backend/syslog.py',
'scripts/tracetool/backend/ust.py',
'scripts/tracetool/format/ust_events_c.py',
'scripts/tracetool/format/ust_events_h.py',
'scripts/tracetool/format/__init__.py',
'scripts/tracetool/format/d.py',
'scripts/tracetool/format/simpletrace_stap.py',
'scripts/tracetool/format/c.py',
'scripts/tracetool/format/h.py',
'scripts/tracetool/format/log_stap.py',
'scripts/tracetool/format/stap.py',
'scripts/tracetool/__init__.py',
'scripts/tracetool/vcpu.py'
)
qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
meson.current_source_dir(),
get_option('pkgversion'), meson.project_version()]
qemu_version = custom_target('qemu-version.h',
output: 'qemu-version.h',
command: qemu_version_cmd,
capture: true,
build_by_default: true,
build_always_stale: true)
genh += qemu_version
hxdep = []
hx_headers = [
['qemu-options.hx', 'qemu-options.def'],
['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
]
if have_system
hx_headers += [
['hmp-commands.hx', 'hmp-commands.h'],
['hmp-commands-info.hx', 'hmp-commands-info.h'],
]
endif
foreach d : hx_headers
hxdep += custom_target(d[1],
input: files(d[0]),
output: d[1],
capture: true,
build_by_default: true, # to be removed when added to a target
command: [hxtool, '-h', '@INPUT0@'])
endforeach
genh += hxdep
###################
# Collect sources #
###################
authz_ss = ss.source_set()
blockdev_ss = ss.source_set()
block_ss = ss.source_set()
chardev_ss = ss.source_set()
common_ss = ss.source_set()
crypto_ss = ss.source_set()
hwcore_ss = ss.source_set()
io_ss = ss.source_set()
qmp_ss = ss.source_set()
qom_ss = ss.source_set()
system_ss = ss.source_set()
specific_fuzz_ss = ss.source_set()
specific_ss = ss.source_set()
stub_ss = ss.source_set()
trace_ss = ss.source_set()
user_ss = ss.source_set()
util_ss = ss.source_set()
# accel modules
qtest_module_ss = ss.source_set()
tcg_module_ss = ss.source_set()
modules = {}
target_modules = {}
hw_arch = {}
target_arch = {}
target_softmmu_arch = {}
target_user_arch = {}
###############
# Trace files #
###############
# TODO: add each directory to the subdirs from its own meson.build, once
# we have those
trace_events_subdirs = [
'crypto',
'qapi',
'qom',
'monitor',
'util',
'gdbstub',
]
if have_linux_user
trace_events_subdirs += [ 'linux-user' ]
endif
if have_bsd_user
trace_events_subdirs += [ 'bsd-user' ]
endif
if have_block
trace_events_subdirs += [
'authz',
'block',
'io',
'nbd',
'scsi',
]
endif
if have_system
trace_events_subdirs += [
'accel/kvm',
'audio',
'backends',
'backends/tpm',
'chardev',
'ebpf',
'hw/9pfs',
'hw/acpi',
'hw/adc',
'hw/alpha',
'hw/arm',
'hw/audio',
'hw/block',
'hw/block/dataplane',
'hw/char',
'hw/display',
'hw/dma',
'hw/hyperv',
'hw/i2c',
'hw/i386',
'hw/i386/xen',
'hw/i386/kvm',
'hw/ide',
'hw/input',
'hw/intc',
'hw/isa',
'hw/mem',
'hw/mips',
'hw/misc',
'hw/misc/macio',
'hw/net',
'hw/net/can',
'hw/nubus',
'hw/nvme',
'hw/nvram',
'hw/pci',
'hw/pci-host',
'hw/ppc',
'hw/rdma',
'hw/rdma/vmw',
'hw/rtc',
'hw/s390x',
'hw/scsi',
'hw/sd',
'hw/sh4',
'hw/sparc',
'hw/sparc64',
'hw/ssi',
'hw/timer',
'hw/tpm',
'hw/ufs',
'hw/usb',
'hw/vfio',
'hw/virtio',
'hw/watchdog',
'hw/xen',
'hw/gpio',
'migration',
'net',
'softmmu',
'ui',
'hw/remote',
]
endif
if have_system or have_user
trace_events_subdirs += [
'accel/tcg',
'hw/core',
'target/arm',
'target/arm/hvf',
'target/hppa',
'target/i386',
'target/i386/kvm',
'target/mips/tcg',
'target/nios2',
'target/ppc',
'target/riscv',
'target/s390x',
'target/s390x/kvm',
'target/sparc',
]
endif
vhost_user = not_found
if targetos == 'linux' and have_vhost_user
libvhost_user = subproject('libvhost-user')
vhost_user = libvhost_user.get_variable('vhost_user_dep')
endif
libvduse = not_found
if have_libvduse
libvduse_proj = subproject('libvduse')
libvduse = libvduse_proj.get_variable('libvduse_dep')
endif
# NOTE: the trace/ subdirectory needs the qapi_trace_events variable
# that is filled in by qapi/.
subdir('qapi')
subdir('qobject')
subdir('stubs')
subdir('trace')
subdir('util')
subdir('qom')
subdir('authz')
subdir('crypto')
subdir('ui')
subdir('hw')
subdir('gdbstub')
if enable_modules
libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
endif
qom_ss = qom_ss.apply(config_targetos, strict: false)
libqom = static_library('qom', qom_ss.sources() + genh,
dependencies: [qom_ss.dependencies()],
name_suffix: 'fa')
qom = declare_dependency(link_whole: libqom)
event_loop_base = files('event-loop-base.c')
event_loop_base = static_library('event-loop-base', sources: event_loop_base + genh,
build_by_default: true)
event_loop_base = declare_dependency(link_whole: event_loop_base,
dependencies: [qom])
stub_ss = stub_ss.apply(config_all, strict: false)
util_ss.add_all(trace_ss)
util_ss = util_ss.apply(config_all, strict: false)
libqemuutil = static_library('qemuutil',
sources: util_ss.sources() + stub_ss.sources() + genh,
dependencies: [util_ss.dependencies(), libm, threads, glib, socket, malloc, pixman])
qemuutil = declare_dependency(link_with: libqemuutil,
sources: genh + version_res,
dependencies: [event_loop_base])
if have_system or have_user
decodetree = generator(find_program('scripts/decodetree.py'),
output: 'decode-@BASENAME@.c.inc',
arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])
subdir('libdecnumber')
subdir('target')
endif
subdir('audio')
subdir('io')
subdir('chardev')
subdir('fsdev')
subdir('dump')
if have_block
block_ss.add(files(
'block.c',
'blockjob.c',
'job.c',
'qemu-io-cmds.c',
))
if config_host_data.get('CONFIG_REPLICATION')
block_ss.add(files('replication.c'))
endif
subdir('nbd')
subdir('scsi')
subdir('block')
blockdev_ss.add(files(
'blockdev.c',
'blockdev-nbd.c',
'iothread.c',
'job-qmp.c',
), gnutls)
# os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
# os-win32.c does not
blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
system_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
endif
common_ss.add(files('cpus-common.c'))
specific_ss.add(files('cpu.c'))
subdir('softmmu')
# Work around a gcc bug/misfeature wherein constant propagation looks
# through an alias:
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99696
# to guess that a const variable is always zero. Without lto, this is
# impossible, as the alias is restricted to page-vary-common.c. Indeed,
# without lto, not even the alias is required -- we simply use different
# declarations in different compilation units.
pagevary = files('page-vary-common.c')
if get_option('b_lto')
pagevary_flags = ['-fno-lto']
if get_option('cfi')
pagevary_flags += '-fno-sanitize=cfi-icall'
endif
pagevary = static_library('page-vary-common', sources: pagevary + genh,
c_args: pagevary_flags)
pagevary = declare_dependency(link_with: pagevary)
endif
common_ss.add(pagevary)
specific_ss.add(files('page-vary.c'))
subdir('backends')
subdir('disas')
subdir('migration')
subdir('monitor')
subdir('net')
subdir('replay')
subdir('semihosting')
subdir('stats')
subdir('tcg')
subdir('fpu')
subdir('accel')
subdir('plugins')
subdir('ebpf')
common_user_inc = []
subdir('common-user')
subdir('bsd-user')
subdir('linux-user')
# needed for fuzzing binaries
subdir('tests/qtest/libqos')
subdir('tests/qtest/fuzz')
# accel modules
tcg_real_module_ss = ss.source_set()
tcg_real_module_ss.add_all(when: 'CONFIG_TCG_MODULAR', if_true: tcg_module_ss)
specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
target_modules += { 'accel' : { 'qtest': qtest_module_ss,
'tcg': tcg_real_module_ss }}
########################
# Library dependencies #
########################
modinfo_collect = find_program('scripts/modinfo-collect.py')
modinfo_generate = find_program('scripts/modinfo-generate.py')
modinfo_files = []
block_mods = []
softmmu_mods = []
foreach d, list : modules
if not (d == 'block' ? have_block : have_system)
continue
endif
foreach m, module_ss : list
if enable_modules
module_ss = module_ss.apply(config_all, strict: false)
sl = static_library(d + '-' + m, [genh, module_ss.sources()],
dependencies: [modulecommon, module_ss.dependencies()], pic: true)
if d == 'block'
block_mods += sl
else
softmmu_mods += sl
endif
if module_ss.sources() != []
# FIXME: Should use sl.extract_all_objects(recursive: true) as
# input. Sources can be used multiple times but objects are
# unique when it comes to lookup in compile_commands.json.
# Depnds on a mesion version with
# https://github.com/mesonbuild/meson/pull/8900
modinfo_files += custom_target(d + '-' + m + '.modinfo',
output: d + '-' + m + '.modinfo',
input: module_ss.sources() + genh,
capture: true,
command: [modinfo_collect, module_ss.sources()])
endif
else
if d == 'block'
block_ss.add_all(module_ss)
else
system_ss.add_all(module_ss)
endif
endif
endforeach
endforeach
foreach d, list : target_modules
foreach m, module_ss : list
if enable_modules
foreach target : target_dirs
if target.endswith('-softmmu')
config_target = config_target_mak[target]
config_target += config_targetos
target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
c_args = ['-DNEED_CPU_H',
'-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
'-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
target_module_ss = module_ss.apply(config_target, strict: false)
if target_module_ss.sources() != []
module_name = d + '-' + m + '-' + config_target['TARGET_NAME']
sl = static_library(module_name,
[genh, target_module_ss.sources()],
dependencies: [modulecommon, target_module_ss.dependencies()],
include_directories: target_inc,
c_args: c_args,
pic: true)
softmmu_mods += sl
# FIXME: Should use sl.extract_all_objects(recursive: true) too.
modinfo_files += custom_target(module_name + '.modinfo',
output: module_name + '.modinfo',
input: target_module_ss.sources() + genh,
capture: true,
command: [modinfo_collect, '--target', target, target_module_ss.sources()])
endif
endif
endforeach
else
specific_ss.add_all(module_ss)
endif
endforeach
endforeach
if enable_modules
foreach target : target_dirs
if target.endswith('-softmmu')
config_target = config_target_mak[target]
config_devices_mak = target + '-config-devices.mak'
modinfo_src = custom_target('modinfo-' + target + '.c',
output: 'modinfo-' + target + '.c',
input: modinfo_files,
command: [modinfo_generate, '--devices', config_devices_mak, '@INPUT@'],
capture: true)
modinfo_lib = static_library('modinfo-' + target + '.c', modinfo_src)
modinfo_dep = declare_dependency(link_with: modinfo_lib)
arch = config_target['TARGET_NAME'] == 'sparc64' ? 'sparc64' : config_target['TARGET_BASE_ARCH']
hw_arch[arch].add(modinfo_dep)
endif
endforeach
endif
nm = find_program('nm')
undefsym = find_program('scripts/undefsym.py')
block_syms = custom_target('block.syms', output: 'block.syms',
input: [libqemuutil, block_mods],
capture: true,
command: [undefsym, nm, '@INPUT@'])
qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
input: [libqemuutil, softmmu_mods],
capture: true,
command: [undefsym, nm, '@INPUT@'])
authz_ss = authz_ss.apply(config_targetos, strict: false)
libauthz = static_library('authz', authz_ss.sources() + genh,
dependencies: [authz_ss.dependencies()],
name_suffix: 'fa',
build_by_default: false)
authz = declare_dependency(link_whole: libauthz,
dependencies: qom)
crypto_ss = crypto_ss.apply(config_targetos, strict: false)
libcrypto = static_library('crypto', crypto_ss.sources() + genh,
dependencies: [crypto_ss.dependencies()],
name_suffix: 'fa',
build_by_default: false)
crypto = declare_dependency(link_whole: libcrypto,
dependencies: [authz, qom])
io_ss = io_ss.apply(config_targetos, strict: false)
libio = static_library('io', io_ss.sources() + genh,
dependencies: [io_ss.dependencies()],
link_with: libqemuutil,
name_suffix: 'fa',
build_by_default: false)
io = declare_dependency(link_whole: libio, dependencies: [crypto, qom])
libmigration = static_library('migration', sources: migration_files + genh,
name_suffix: 'fa',
build_by_default: false)
migration = declare_dependency(link_with: libmigration,
dependencies: [zlib, qom, io])
system_ss.add(migration)
block_ss = block_ss.apply(config_targetos, strict: false)
libblock = static_library('block', block_ss.sources() + genh,
dependencies: block_ss.dependencies(),
link_depends: block_syms,
name_suffix: 'fa',
build_by_default: false)
block = declare_dependency(link_whole: [libblock],
link_args: '@block.syms',
dependencies: [crypto, io])
blockdev_ss = blockdev_ss.apply(config_targetos, strict: false)
libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
dependencies: blockdev_ss.dependencies(),
name_suffix: 'fa',
build_by_default: false)
blockdev = declare_dependency(link_whole: [libblockdev],
dependencies: [block, event_loop_base])
qmp_ss = qmp_ss.apply(config_targetos, strict: false)
libqmp = static_library('qmp', qmp_ss.sources() + genh,
dependencies: qmp_ss.dependencies(),
name_suffix: 'fa',
build_by_default: false)
qmp = declare_dependency(link_whole: [libqmp])
libchardev = static_library('chardev', chardev_ss.sources() + genh,
name_suffix: 'fa',
dependencies: chardev_ss.dependencies(),
build_by_default: false)
chardev = declare_dependency(link_whole: libchardev)
hwcore_ss = hwcore_ss.apply(config_targetos, strict: false)
libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
name_suffix: 'fa',
build_by_default: false)
hwcore = declare_dependency(link_whole: libhwcore)
common_ss.add(hwcore)
###########
# Targets #
###########
emulator_modules = []
foreach m : block_mods + softmmu_mods
emulator_modules += shared_module(m.name(),
build_by_default: true,
name_prefix: '',
link_whole: m,
install: true,
install_dir: qemu_moddir)
endforeach
if emulator_modules.length() > 0
alias_target('modules', emulator_modules)
endif
system_ss.add(authz, blockdev, chardev, crypto, io, qmp)
common_ss.add(qom, qemuutil)
common_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: [system_ss])
common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
common_all = common_ss.apply(config_all, strict: false)
common_all = static_library('common',
build_by_default: false,
sources: common_all.sources() + genh,
include_directories: common_user_inc,
implicit_include_directories: false,
dependencies: common_all.dependencies(),
name_suffix: 'fa')
feature_to_c = find_program('scripts/feature_to_c.sh')
if targetos == 'darwin'
entitlement = find_program('scripts/entitlement.sh')
endif
emulators = {}
foreach target : target_dirs
config_target = config_target_mak[target]
target_name = config_target['TARGET_NAME']
target_base_arch = config_target['TARGET_BASE_ARCH']
arch_srcs = [config_target_h[target]]
arch_deps = []
c_args = ['-DNEED_CPU_H',
'-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
'-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
link_args = emulator_link_args
config_target += config_targetos
target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
if targetos == 'linux'
target_inc += include_directories('linux-headers', is_system: true)
endif
if target.endswith('-softmmu')
target_type='system'
t = target_softmmu_arch[target_base_arch].apply(config_target, strict: false)
arch_srcs += t.sources()
arch_deps += t.dependencies()
hw_dir = target_name == 'sparc64' ? 'sparc64' : target_base_arch
hw = hw_arch[hw_dir].apply(config_target, strict: false)
arch_srcs += hw.sources()
arch_deps += hw.dependencies()
arch_srcs += config_devices_h[target]
link_args += ['@block.syms', '@qemu.syms']
else
abi = config_target['TARGET_ABI_DIR']
target_type='user'
target_inc += common_user_inc
if target_base_arch in target_user_arch
t = target_user_arch[target_base_arch].apply(config_target, strict: false)
arch_srcs += t.sources()
arch_deps += t.dependencies()
endif
if 'CONFIG_LINUX_USER' in config_target
base_dir = 'linux-user'
endif
if 'CONFIG_BSD_USER' in config_target
base_dir = 'bsd-user'
target_inc += include_directories('bsd-user/' / targetos)
target_inc += include_directories('bsd-user/host/' / host_arch)
dir = base_dir / abi
arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
endif
target_inc += include_directories(
base_dir,
base_dir / abi,
)
if 'CONFIG_LINUX_USER' in config_target
dir = base_dir / abi
arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
if config_target.has_key('TARGET_SYSTBL_ABI')
arch_srcs += \
syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
extra_args : config_target['TARGET_SYSTBL_ABI'])
endif
endif
endif
if 'TARGET_XML_FILES' in config_target
gdbstub_xml = custom_target(target + '-gdbstub-xml.c',
output: target + '-gdbstub-xml.c',
input: files(config_target['TARGET_XML_FILES'].split()),
command: [feature_to_c, '@INPUT@'],
capture: true)
arch_srcs += gdbstub_xml
endif
t = target_arch[target_base_arch].apply(config_target, strict: false)
arch_srcs += t.sources()
arch_deps += t.dependencies()
target_common = common_ss.apply(config_target, strict: false)
objects = common_all.extract_objects(target_common.sources())
deps = target_common.dependencies()
target_specific = specific_ss.apply(config_target, strict: false)
arch_srcs += target_specific.sources()
arch_deps += target_specific.dependencies()
lib = static_library('qemu-' + target,
sources: arch_srcs + genh,
dependencies: arch_deps,
objects: objects,
include_directories: target_inc,
c_args: c_args,
build_by_default: false,
name_suffix: 'fa')
if target.endswith('-softmmu')
execs = [{
'name': 'qemu-system-' + target_name,
'win_subsystem': 'console',
'sources': files('softmmu/main.c'),
'dependencies': []
}]
if targetos == 'windows' and (sdl.found() or gtk.found())
execs += [{
'name': 'qemu-system-' + target_name + 'w',
'win_subsystem': 'windows',
'sources': files('softmmu/main.c'),
'dependencies': []
}]
endif
if get_option('fuzzing')
specific_fuzz = specific_fuzz_ss.apply(config_target, strict: false)
execs += [{
'name': 'qemu-fuzz-' + target_name,
'win_subsystem': 'console',
'sources': specific_fuzz.sources(),
'dependencies': specific_fuzz.dependencies(),
}]
endif
else
execs = [{
'name': 'qemu-' + target_name,
'win_subsystem': 'console',
'sources': [],
'dependencies': []
}]
endif
foreach exe: execs
exe_name = exe['name']
if targetos == 'darwin'
exe_name += '-unsigned'
endif
emulator = executable(exe_name, exe['sources'],
install: true,
c_args: c_args,
dependencies: arch_deps + deps + exe['dependencies'],
objects: lib.extract_all_objects(recursive: true),
link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
link_args: link_args,
win_subsystem: exe['win_subsystem'])
if targetos == 'darwin'
icon = 'pc-bios/qemu.rsrc'
build_input = [emulator, files(icon)]
install_input = [
get_option('bindir') / exe_name,
meson.current_source_dir() / icon
]
if 'CONFIG_HVF' in config_target
entitlements = 'accel/hvf/entitlements.plist'
build_input += files(entitlements)
install_input += meson.current_source_dir() / entitlements
endif
emulators += {exe['name'] : custom_target(exe['name'],
input: build_input,
output: exe['name'],
command: [entitlement, '@OUTPUT@', '@INPUT@'])
}
meson.add_install_script(entitlement, '--install',
get_option('bindir') / exe['name'],
install_input)
else
emulators += {exe['name']: emulator}
endif
if stap.found()
foreach stp: [
{'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
{'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
{'ext': '-simpletrace.stp', 'fmt': 'simpletrace-stap', 'bin': '', 'install': true},
{'ext': '-log.stp', 'fmt': 'log-stap', 'bin': '', 'install': true},
]
custom_target(exe['name'] + stp['ext'],
input: trace_events_all,
output: exe['name'] + stp['ext'],
install: stp['install'],
install_dir: get_option('datadir') / 'systemtap/tapset',
command: [
tracetool, '--group=all', '--format=' + stp['fmt'],
'--binary=' + stp['bin'],
'--target-name=' + target_name,
'--target-type=' + target_type,
'--probe-prefix=qemu.' + target_type + '.' + target_name,
'@INPUT@', '@OUTPUT@'
],
depend_files: tracetool_depends)
endforeach
endif
endforeach
endforeach
# Other build targets
if get_option('plugins')
install_headers('include/qemu/qemu-plugin.h')
endif
subdir('qga')
# Don't build qemu-keymap if xkbcommon is not explicitly enabled
# when we don't build tools or system
if xkbcommon.found()
# used for the update-keymaps target, so include rules even if !have_tools
qemu_keymap = executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c') + genh,
dependencies: [qemuutil, xkbcommon], install: have_tools)
endif
if have_tools
qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
qemu_io = executable('qemu-io', files('qemu-io.c'),
dependencies: [block, qemuutil], install: true)
qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
dependencies: [blockdev, qemuutil, gnutls, selinux],
install: true)
subdir('storage-daemon')
subdir('contrib/rdmacm-mux')
subdir('contrib/elf2dmp')
executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
dependencies: qemuutil,
install: true)
if have_vhost_user
subdir('contrib/vhost-user-blk')
subdir('contrib/vhost-user-gpu')
subdir('contrib/vhost-user-input')
subdir('contrib/vhost-user-scsi')
endif
if targetos == 'linux'
executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
dependencies: [qemuutil, libcap_ng],
install: true,
install_dir: get_option('libexecdir'))
executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
dependencies: [authz, crypto, io, qom, qemuutil,
libcap_ng, mpathpersist],
install: true)
endif
if have_ivshmem
subdir('contrib/ivshmem-client')
subdir('contrib/ivshmem-server')
endif
endif
subdir('scripts')
subdir('tools')
subdir('pc-bios')
subdir('docs')
subdir('tests')
if gtk.found()
subdir('po')
endif
if host_machine.system() == 'windows'
nsis_cmd = [
find_program('scripts/nsis.py'),
'@OUTPUT@',
get_option('prefix'),
meson.current_source_dir(),
glib_pc.get_variable('bindir'),
host_machine.cpu(),
'--',
'-DDISPLAYVERSION=' + meson.project_version(),
]
if build_docs
nsis_cmd += '-DCONFIG_DOCUMENTATION=y'
endif
if gtk.found()
nsis_cmd += '-DCONFIG_GTK=y'
endif
nsis = custom_target('nsis',
output: 'qemu-setup-' + meson.project_version() + '.exe',
input: files('qemu.nsi'),
build_always_stale: true,
command: nsis_cmd + ['@INPUT@'])
alias_target('installer', nsis)
endif
#########################
# Configuration summary #
#########################
# Build environment
summary_info = {}
summary_info += {'Build directory': meson.current_build_dir()}
summary_info += {'Source path': meson.current_source_dir()}
summary_info += {'Download dependencies': get_option('wrap_mode') != 'nodownload'}
summary(summary_info, bool_yn: true, section: 'Build environment')
# Directories
summary_info += {'Install prefix': get_option('prefix')}
summary_info += {'BIOS directory': qemu_datadir}
pathsep = targetos == 'windows' ? ';' : ':'
summary_info += {'firmware path': pathsep.join(get_option('qemu_firmwarepath'))}
summary_info += {'binary directory': get_option('prefix') / get_option('bindir')}
summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
summary_info += {'module directory': qemu_moddir}
summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
summary_info += {'config directory': get_option('prefix') / get_option('sysconfdir')}
if targetos != 'windows'
summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
summary_info += {'Manual directory': get_option('prefix') / get_option('mandir')}
else
summary_info += {'local state directory': 'queried at runtime'}
endif
summary_info += {'Doc directory': get_option('prefix') / get_option('docdir')}
summary(summary_info, bool_yn: true, section: 'Directories')
# Host binaries
summary_info = {}
summary_info += {'python': '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
summary_info += {'sphinx-build': sphinx_build}
if config_host.has_key('HAVE_GDB_BIN')
summary_info += {'gdb': config_host['HAVE_GDB_BIN']}
endif
summary_info += {'iasl': iasl}
summary_info += {'genisoimage': config_host['GENISOIMAGE']}
if targetos == 'windows' and have_ga
summary_info += {'wixl': wixl}
endif
if slirp.found() and have_system
summary_info += {'smbd': have_slirp_smbd ? smbd_path : false}
endif
summary(summary_info, bool_yn: true, section: 'Host binaries')
# Configurable features
summary_info = {}
summary_info += {'Documentation': build_docs}
summary_info += {'system-mode emulation': have_system}
summary_info += {'user-mode emulation': have_user}
summary_info += {'block layer': have_block}
summary_info += {'Install blobs': get_option('install_blobs')}
summary_info += {'module support': enable_modules}
if enable_modules
summary_info += {'alternative module path': get_option('module_upgrades')}
endif
summary_info += {'fuzzing support': get_option('fuzzing')}
if have_system
summary_info += {'Audio drivers': ' '.join(audio_drivers_selected)}
endif
summary_info += {'Trace backends': ','.join(get_option('trace_backends'))}
if 'simple' in get_option('trace_backends')
summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
endif
summary_info += {'D-Bus display': dbus_display}
summary_info += {'QOM debugging': get_option('qom_cast_debug')}
summary_info += {'vhost-kernel support': have_vhost_kernel}
summary_info += {'vhost-net support': have_vhost_net}
summary_info += {'vhost-user support': have_vhost_user}
summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
summary_info += {'vhost-vdpa support': have_vhost_vdpa}
summary_info += {'build guest agent': have_ga}
summary(summary_info, bool_yn: true, section: 'Configurable features')
# Compilation information
summary_info = {}
summary_info += {'host CPU': cpu}
summary_info += {'host endianness': build_machine.endian()}
summary_info += {'C compiler': ' '.join(meson.get_compiler('c').cmd_array())}
summary_info += {'Host C compiler': ' '.join(meson.get_compiler('c', native: true).cmd_array())}
if 'cpp' in all_languages
summary_info += {'C++ compiler': ' '.join(meson.get_compiler('cpp').cmd_array())}
else
summary_info += {'C++ compiler': false}
endif
if targetos == 'darwin'
summary_info += {'Objective-C compiler': ' '.join(meson.get_compiler('objc').cmd_array())}
endif
option_cflags = (get_option('debug') ? ['-g'] : [])
if get_option('optimization') != 'plain'
option_cflags += ['-O' + get_option('optimization')]
endif
summary_info += {'CFLAGS': ' '.join(get_option('c_args') + option_cflags)}
if 'cpp' in all_languages
summary_info += {'CXXFLAGS': ' '.join(get_option('cpp_args') + option_cflags)}
endif
if targetos == 'darwin'
summary_info += {'OBJCFLAGS': ' '.join(get_option('objc_args') + option_cflags)}
endif
link_args = get_option('c_link_args')
if link_args.length() > 0
summary_info += {'LDFLAGS': ' '.join(link_args)}
endif
summary_info += {'QEMU_CFLAGS': ' '.join(qemu_common_flags + qemu_cflags)}
if 'cpp' in all_languages
summary_info += {'QEMU_CXXFLAGS': ' '.join(qemu_common_flags + qemu_cxxflags)}
endif
if 'objc' in all_languages
summary_info += {'QEMU_OBJCFLAGS': ' '.join(qemu_common_flags)}
endif
summary_info += {'QEMU_LDFLAGS': ' '.join(qemu_ldflags)}
summary_info += {'link-time optimization (LTO)': get_option('b_lto')}
summary_info += {'PIE': get_option('b_pie')}
summary_info += {'static build': get_option('prefer_static')}
summary_info += {'malloc trim support': has_malloc_trim}
summary_info += {'membarrier': have_membarrier}
summary_info += {'debug graph lock': get_option('debug_graph_lock')}
summary_info += {'debug stack usage': get_option('debug_stack_usage')}
summary_info += {'mutex debugging': get_option('debug_mutex')}
summary_info += {'memory allocator': get_option('malloc')}
summary_info += {'avx2 optimization': config_host_data.get('CONFIG_AVX2_OPT')}
summary_info += {'avx512bw optimization': config_host_data.get('CONFIG_AVX512BW_OPT')}
summary_info += {'avx512f optimization': config_host_data.get('CONFIG_AVX512F_OPT')}
if get_option('gprof')
gprof_info = 'YES (deprecated)'
else
gprof_info = get_option('gprof')
endif
summary_info += {'gprof': gprof_info}
summary_info += {'gcov': get_option('b_coverage')}
summary_info += {'thread sanitizer': get_option('tsan')}
summary_info += {'CFI support': get_option('cfi')}
if get_option('cfi')
summary_info += {'CFI debug support': get_option('cfi_debug')}
endif
summary_info += {'strip binaries': get_option('strip')}
summary_info += {'sparse': sparse}
summary_info += {'mingw32 support': targetos == 'windows'}
summary(summary_info, bool_yn: true, section: 'Compilation')
# snarf the cross-compilation information for tests
summary_info = {}
have_cross = false
foreach target: target_dirs
tcg_mak = meson.current_build_dir() / 'tests/tcg' / target / 'config-target.mak'
if fs.exists(tcg_mak)
config_cross_tcg = keyval.load(tcg_mak)
if 'CC' in config_cross_tcg
summary_info += {config_cross_tcg['TARGET_NAME']: config_cross_tcg['CC']}
have_cross = true
endif
endif
endforeach
if have_cross
summary(summary_info, bool_yn: true, section: 'Cross compilers')
endif
# Targets and accelerators
summary_info = {}
if have_system
summary_info += {'KVM support': config_all.has_key('CONFIG_KVM')}
summary_info += {'HVF support': config_all.has_key('CONFIG_HVF')}
summary_info += {'WHPX support': config_all.has_key('CONFIG_WHPX')}
summary_info += {'NVMM support': config_all.has_key('CONFIG_NVMM')}
summary_info += {'Xen support': xen.found()}
if xen.found()
summary_info += {'xen ctrl version': xen.version()}
endif
summary_info += {'Xen emulation': config_all.has_key('CONFIG_XEN_EMU')}
endif
summary_info += {'TCG support': config_all.has_key('CONFIG_TCG')}
if config_all.has_key('CONFIG_TCG')
if get_option('tcg_interpreter')
summary_info += {'TCG backend': 'TCI (TCG with bytecode interpreter, slow)'}
else
summary_info += {'TCG backend': 'native (@0@)'.format(cpu)}
endif
summary_info += {'TCG plugins': get_option('plugins')}
summary_info += {'TCG debug enabled': get_option('debug_tcg')}
endif
summary_info += {'target list': ' '.join(target_dirs)}
if have_system
summary_info += {'default devices': get_option('default_devices')}
summary_info += {'out of process emulation': multiprocess_allowed}
summary_info += {'vfio-user server': vfio_user_server_allowed}
endif
summary(summary_info, bool_yn: true, section: 'Targets and accelerators')
# Block layer
summary_info = {}
summary_info += {'coroutine backend': coroutine_backend}
summary_info += {'coroutine pool': have_coroutine_pool}
if have_block
summary_info += {'Block whitelist (rw)': get_option('block_drv_rw_whitelist')}
summary_info += {'Block whitelist (ro)': get_option('block_drv_ro_whitelist')}
summary_info += {'Use block whitelist in tools': get_option('block_drv_whitelist_in_tools')}
summary_info += {'VirtFS (9P) support': have_virtfs}
summary_info += {'VirtFS (9P) Proxy Helper support (deprecated)': have_virtfs_proxy_helper}
summary_info += {'Live block migration': config_host_data.get('CONFIG_LIVE_BLOCK_MIGRATION')}
summary_info += {'replication support': config_host_data.get('CONFIG_REPLICATION')}
summary_info += {'bochs support': get_option('bochs').allowed()}
summary_info += {'cloop support': get_option('cloop').allowed()}
summary_info += {'dmg support': get_option('dmg').allowed()}
summary_info += {'qcow v1 support': get_option('qcow1').allowed()}
summary_info += {'vdi support': get_option('vdi').allowed()}
summary_info += {'vhdx support': get_option('vhdx').allowed()}
summary_info += {'vmdk support': get_option('vmdk').allowed()}
summary_info += {'vpc support': get_option('vpc').allowed()}
summary_info += {'vvfat support': get_option('vvfat').allowed()}
summary_info += {'qed support': get_option('qed').allowed()}
summary_info += {'parallels support': get_option('parallels').allowed()}
summary_info += {'FUSE exports': fuse}
summary_info += {'VDUSE block exports': have_vduse_blk_export}
endif
summary(summary_info, bool_yn: true, section: 'Block layer support')
# Crypto
summary_info = {}
summary_info += {'TLS priority': get_option('tls_priority')}
summary_info += {'GNUTLS support': gnutls}
if gnutls.found()
summary_info += {' GNUTLS crypto': gnutls_crypto.found()}
endif
summary_info += {'libgcrypt': gcrypt}
summary_info += {'nettle': nettle}
if nettle.found()
summary_info += {' XTS': xts != 'private'}
endif
summary_info += {'AF_ALG support': have_afalg}
summary_info += {'rng-none': get_option('rng_none')}
summary_info += {'Linux keyring': have_keyring}
summary(summary_info, bool_yn: true, section: 'Crypto')
# UI
summary_info = {}
if targetos == 'darwin'
summary_info += {'Cocoa support': cocoa}
endif
summary_info += {'SDL support': sdl}
summary_info += {'SDL image support': sdl_image}
summary_info += {'GTK support': gtk}
summary_info += {'pixman': pixman}
summary_info += {'VTE support': vte}
summary_info += {'PNG support': png}
summary_info += {'VNC support': vnc}
if vnc.found()
summary_info += {'VNC SASL support': sasl}
summary_info += {'VNC JPEG support': jpeg}
endif
summary_info += {'spice protocol support': spice_protocol}
if spice_protocol.found()
summary_info += {' spice server support': spice}
endif
summary_info += {'curses support': curses}
summary_info += {'brlapi support': brlapi}
summary(summary_info, bool_yn: true, section: 'User interface')
# Audio backends
summary_info = {}
if targetos not in ['darwin', 'haiku', 'windows']
summary_info += {'OSS support': oss}
summary_info += {'sndio support': sndio}
elif targetos == 'darwin'
summary_info += {'CoreAudio support': coreaudio}
elif targetos == 'windows'
summary_info += {'DirectSound support': dsound}
endif
if targetos == 'linux'
summary_info += {'ALSA support': alsa}
summary_info += {'PulseAudio support': pulse}
endif
summary_info += {'PipeWire support': pipewire}
summary_info += {'JACK support': jack}
summary(summary_info, bool_yn: true, section: 'Audio backends')
# Network backends
summary_info = {}
if targetos == 'darwin'
summary_info += {'vmnet.framework support': vmnet}
endif
summary_info += {'AF_XDP support': libxdp}
summary_info += {'slirp support': slirp}
summary_info += {'vde support': vde}
summary_info += {'netmap support': have_netmap}
summary_info += {'l2tpv3 support': have_l2tpv3}
summary(summary_info, bool_yn: true, section: 'Network backends')
# Libraries
summary_info = {}
summary_info += {'libtasn1': tasn1}
summary_info += {'PAM': pam}
summary_info += {'iconv support': iconv}
summary_info += {'virgl support': virgl}
summary_info += {'blkio support': blkio}
summary_info += {'curl support': curl}
summary_info += {'Multipath support': mpathpersist}
summary_info += {'Linux AIO support': libaio}
summary_info += {'Linux io_uring support': linux_io_uring}
summary_info += {'ATTR/XATTR support': libattr}
summary_info += {'RDMA support': rdma}
summary_info += {'PVRDMA support': have_pvrdma}
summary_info += {'fdt support': fdt_opt == 'disabled' ? false : fdt_opt}
summary_info += {'libcap-ng support': libcap_ng}
summary_info += {'bpf support': libbpf}
summary_info += {'rbd support': rbd}
summary_info += {'smartcard support': cacard}
summary_info += {'U2F support': u2f}
summary_info += {'libusb': libusb}
summary_info += {'usb net redir': usbredir}
summary_info += {'OpenGL support (epoxy)': opengl}
summary_info += {'GBM': gbm}
summary_info += {'libiscsi support': libiscsi}
summary_info += {'libnfs support': libnfs}
if targetos == 'windows'
if have_ga
summary_info += {'QGA VSS support': have_qga_vss}
endif
endif
summary_info += {'seccomp support': seccomp}
summary_info += {'GlusterFS support': glusterfs}
summary_info += {'TPM support': have_tpm}
summary_info += {'libssh support': libssh}
summary_info += {'lzo support': lzo}
summary_info += {'snappy support': snappy}
summary_info += {'bzip2 support': libbzip2}
summary_info += {'lzfse support': liblzfse}
summary_info += {'zstd support': zstd}
summary_info += {'NUMA host support': numa}
summary_info += {'capstone': capstone}
summary_info += {'libpmem support': libpmem}
summary_info += {'libdaxctl support': libdaxctl}
summary_info += {'libudev': libudev}
# Dummy dependency, keep .found()
summary_info += {'FUSE lseek': fuse_lseek.found()}
summary_info += {'selinux': selinux}
summary_info += {'libdw': libdw}
summary(summary_info, bool_yn: true, section: 'Dependencies')
if host_arch == 'unknown'
message()
warning('UNSUPPORTED HOST CPU')
message()
message('Support for CPU host architecture ' + cpu + ' is not currently')
message('maintained. The QEMU project does not guarantee that QEMU will')
message('compile or work on this host CPU. You can help by volunteering')
message('to maintain it and providing a build host for our continuous')
message('integration setup.')
if get_option('tcg').allowed() and target_dirs.length() > 0
message()
message('configure has succeeded and you can continue to build, but')
message('QEMU will use a slow interpreter to emulate the target CPU.')
endif
endif
if not supported_oses.contains(targetos)
message()
warning('UNSUPPORTED HOST OS')
message()
message('Support for host OS ' + targetos + 'is not currently maintained.')
message('configure has succeeded and you can continue to build, but')
message('the QEMU project does not guarantee that QEMU will compile or')
message('work on this operating system. You can help by volunteering')
message('to maintain it and providing a build host for our continuous')
message('integration setup. This will ensure that future versions of QEMU')
message('will keep working on ' + targetos + '.')
endif
if host_arch == 'unknown' or not supported_oses.contains(targetos)
message()
message('If you want to help supporting QEMU on this platform, please')
message('contact the developers at qemu-devel@nongnu.org.')
endif
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