meson: infrastructure for building emulators
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/meson.build b/meson.build
index c892672..6f8024c 100644
--- a/meson.build
+++ b/meson.build
@@ -9,6 +9,7 @@
sh = find_program('sh')
cc = meson.get_compiler('c')
config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
+config_all_disas = keyval.load(meson.current_build_dir() / 'config-all-disas.mak')
add_project_arguments(config_host['QEMU_CFLAGS'].split(),
native: false, language: ['c', 'objc'])
@@ -151,16 +152,96 @@
libudev = declare_dependency(link_args: config_host['LIBUDEV_LIBS'].split())
endif
+create_config = find_program('scripts/create_config')
+minikconf = find_program('scripts/minikconf.py')
target_dirs = config_host['TARGET_DIRS'].split()
have_user = false
have_system = false
+config_devices_mak_list = []
+config_devices_h = {}
+config_target_mak = {}
+kconfig_external_symbols = [
+ 'CONFIG_KVM',
+ 'CONFIG_XEN',
+ 'CONFIG_TPM',
+ 'CONFIG_SPICE',
+ 'CONFIG_IVSHMEM',
+ 'CONFIG_OPENGL',
+ 'CONFIG_X11',
+ 'CONFIG_VHOST_USER',
+ 'CONFIG_VHOST_KERNEL',
+ 'CONFIG_VIRTFS',
+ 'CONFIG_LINUX',
+ 'CONFIG_PVRDMA',
+]
foreach target : target_dirs
have_user = have_user or target.endswith('-user')
- have_system = have_system or target.endswith('-softmmu')
+ config_target = keyval.load(meson.current_build_dir() / target / 'config-target.mak') + config_host
+
+ if target.endswith('-softmmu')
+ have_system = true
+
+ base_kconfig = []
+ foreach sym : kconfig_external_symbols
+ if sym in config_target
+ base_kconfig += '@0@=y'.format(sym)
+ endif
+ endforeach
+
+ config_devices_mak = target + '-config-devices.mak'
+ config_devices_mak = configure_file(
+ input: ['default-configs' / target + '.mak', 'Kconfig'],
+ output: config_devices_mak,
+ depfile: config_devices_mak + '.d',
+ capture: true,
+ command: [minikconf, config_host['CONFIG_MINIKCONF_MODE'],
+ config_devices_mak, '@DEPFILE@', '@INPUT@',
+ base_kconfig])
+ config_devices_h += {target: custom_target(
+ target + '-config-devices.h',
+ input: config_devices_mak,
+ output: target + '-config-devices.h',
+ capture: true,
+ command: [create_config, '@INPUT@'])}
+ config_devices_mak_list += config_devices_mak
+ config_target += keyval.load(config_devices_mak)
+ endif
+ config_target_mak += {target: config_target}
endforeach
have_tools = 'CONFIG_TOOLS' in config_host
have_block = have_system or have_tools
+grepy = find_program('scripts/grepy.sh')
+# 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.
+
+if have_system
+ config_all_devices_mak = configure_file(
+ output: 'config-all-devices.mak',
+ input: config_devices_mak_list,
+ capture: true,
+ command: [grepy, '@INPUT@'],
+ )
+ config_all_devices = keyval.load(config_all_devices_mak)
+else
+ config_all_devices = {}
+endif
+config_all = config_all_devices
+config_all += config_host
+config_all += config_all_disas
+config_all += {
+ 'CONFIG_XEN': config_host.has_key('CONFIG_XEN_BACKEND'),
+ 'CONFIG_SOFTMMU': have_system,
+ 'CONFIG_USER_ONLY': have_user,
+ 'CONFIG_ALL': true,
+}
+
# Generators
genh = []
@@ -202,6 +283,13 @@
build_always_stale: true)
genh += qemu_version
+config_host_h = custom_target('config-host.h',
+ input: meson.current_build_dir() / 'config-host.mak',
+ output: 'config-host.h',
+ capture: true,
+ command: [create_config, '@INPUT@'])
+genh += config_host_h
+
hxdep = []
hx_headers = [
['qemu-options.hx', 'qemu-options.def'],
@@ -228,6 +316,16 @@
util_ss = ss.source_set()
stub_ss = ss.source_set()
trace_ss = ss.source_set()
+common_ss = ss.source_set()
+softmmu_ss = ss.source_set()
+user_ss = ss.source_set()
+bsd_user_ss = ss.source_set()
+linux_user_ss = ss.source_set()
+specific_ss = ss.source_set()
+
+hw_arch = {}
+target_arch = {}
+target_softmmu_arch = {}
###############
# Trace files #
@@ -336,10 +434,10 @@
# Build targets from sourcesets
-stub_ss = stub_ss.apply(config_host, strict: false)
+stub_ss = stub_ss.apply(config_all, strict: false)
util_ss.add_all(trace_ss)
-util_ss = util_ss.apply(config_host, strict: false)
+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(), m, glib, socket])
@@ -350,6 +448,68 @@
subdir('fsdev')
subdir('target')
+common_ss.add_all(when: 'CONFIG_SOFTMMU', if_true: softmmu_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,
+ dependencies: common_all.dependencies(),
+ name_suffix: 'fa')
+
+foreach target : target_dirs
+ config_target = config_target_mak[target]
+ target_name = config_target['TARGET_NAME']
+ arch = config_target['TARGET_BASE_ARCH']
+ arch_srcs = []
+
+ 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')
+ qemu_target_name = 'qemu-system-' + target_name
+ target_type='system'
+ arch_srcs += config_devices_h[target]
+ else
+ target_type='user'
+ qemu_target_name = 'qemu-' + target_name
+ if 'CONFIG_LINUX_USER' in config_target
+ base_dir = 'linux-user'
+ target_inc += include_directories('linux-user/host/' / config_host['ARCH'])
+ else
+ base_dir = 'bsd-user'
+ endif
+ target_inc += include_directories(
+ base_dir,
+ base_dir / config_target['TARGET_ABI_DIR'],
+ )
+ endif
+
+ target_common = common_ss.apply(config_target, strict: false)
+ objects = common_all.extract_objects(target_common.sources())
+
+ # TODO: Change to generator once obj-y goes away
+ config_target_h = custom_target(target + '-config-target.h',
+ input: meson.current_build_dir() / target / 'config-target.mak',
+ output: target + '-config-target.h',
+ capture: true,
+ command: [create_config, '@INPUT@'])
+
+ target_specific = specific_ss.apply(config_target, strict: false)
+ arch_srcs += target_specific.sources()
+
+ static_library('qemu-' + target,
+ sources: arch_srcs + [config_target_h] + genh,
+ objects: objects,
+ include_directories: target_inc,
+ c_args: ['-DNEED_CPU_H',
+ '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
+ '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)],
+ name_suffix: 'fa')
+endforeach
+
# Other build targets
if 'CONFIG_GUEST_AGENT' in config_host
subdir('qga')
