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meson: remove CONFIG_ALL

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CONFIG_ALL is tricky to use and was ported over to Meson from the
recursive processing of Makefile variables.  Meson sourcesets
however have all_sources() and all_dependencies() methods that
remove the need for it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2023-08-31 11:18:24 +02:00
parent 1220f5813a
commit 0d66549cf5
14 changed files with 7 additions and 65 deletions
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15
docs/devel/build-system.rst
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@ -256,21 +256,6 @@ Target-independent emulator sourcesets:
``system_ss`` only in system emulators, ``user_ss`` only in user-mode
emulators.
Target-independent sourcesets must exercise particular care when using
``if_false`` rules. The ``if_false`` rule will be used correctly when linking
emulator binaries; however, when *compiling* target-independent files
into .o files, Meson may need to pick *both* the ``if_true`` and
``if_false`` sides to cater for targets that want either side. To
achieve that, you can add a special rule using the ``CONFIG_ALL``
symbol::
# Some targets have CONFIG_ACPI, some don't, so this is not enough
system_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi.c'),
if_false: files('acpi-stub.c'))
# This is required as well:
system_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c'))
Target-dependent emulator sourcesets:
In the target-dependent set lives CPU emulation, some device emulation and
much glue code. This sometimes also has to be compiled multiple times,

1
fsdev/meson.build
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@ -1,6 +1,5 @@
fsdev_ss = ss.source_set()
fsdev_ss.add(files('qemu-fsdev-opts.c', 'qemu-fsdev-throttle.c'))
fsdev_ss.add(when: 'CONFIG_ALL', if_true: files('qemu-fsdev-dummy.c'))
fsdev_ss.add(when: ['CONFIG_FSDEV_9P'], if_true: files(
'9p-iov-marshal.c',
'9p-marshal.c',

5
hw/acpi/meson.build
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@ -33,9 +33,4 @@ endif
system_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c', 'acpi_interface.c'))
system_ss.add(when: 'CONFIG_ACPI_PCI_BRIDGE', if_false: files('pci-bridge-stub.c'))
system_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
system_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c', 'aml-build-stub.c',
'acpi-x86-stub.c', 'ipmi-stub.c', 'ghes-stub.c',
'acpi-mem-hotplug-stub.c', 'acpi-cpu-hotplug-stub.c',
'acpi-pci-hotplug-stub.c', 'acpi-nvdimm-stub.c',
'cxl-stub.c', 'pci-bridge-stub.c'))
system_ss.add(files('acpi-qmp-cmds.c'))

2
hw/cxl/meson.build
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@ -11,5 +11,3 @@ system_ss.add(when: 'CONFIG_CXL',
if_false: files(
'cxl-host-stubs.c',
))
system_ss.add(when: 'CONFIG_ALL', if_true: files('cxl-host-stubs.c'))

1
hw/display/meson.build
View File

@ -143,5 +143,4 @@ endif
system_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_lcdc.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-vga-stub.c'))
modules += { 'hw-display': hw_display_modules }

1
hw/mem/meson.build
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@ -5,7 +5,6 @@ mem_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_mc.c'))
mem_ss.add(when: 'CONFIG_NVDIMM', if_true: files('nvdimm.c'))
mem_ss.add(when: 'CONFIG_CXL_MEM_DEVICE', if_true: files('cxl_type3.c'))
system_ss.add(when: 'CONFIG_CXL_MEM_DEVICE', if_false: files('cxl_type3_stubs.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('cxl_type3_stubs.c'))
system_ss.add_all(when: 'CONFIG_MEM_DEVICE', if_true: mem_ss)

2
hw/net/meson.build
View File

@ -50,7 +50,6 @@ specific_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('virtio-net.c'))
if have_vhost_net
system_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('vhost_net.c'), if_false: files('vhost_net-stub.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost_net-stub.c'))
else
system_ss.add(files('vhost_net-stub.c'))
endif
@ -69,7 +68,6 @@ system_ss.add(when: 'CONFIG_ROCKER', if_true: files(
'rocker/rocker_of_dpa.c',
'rocker/rocker_world.c',
), if_false: files('rocker/qmp-norocker.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('rocker/qmp-norocker.c'))
system_ss.add(files('rocker/rocker-hmp-cmds.c'))
subdir('can')

2
hw/pci-bridge/meson.build
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@ -13,5 +13,3 @@ pci_ss.add(when: 'CONFIG_CXL', if_true: files('cxl_root_port.c', 'cxl_upstream.c
pci_ss.add(when: 'CONFIG_SIMBA', if_true: files('simba.c'))
system_ss.add_all(when: 'CONFIG_PCI', if_true: pci_ss)
system_ss.add(when: 'CONFIG_ALL', if_true: files('pci_expander_bridge_stubs.c'))

1
hw/pci/meson.build
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@ -20,4 +20,3 @@ system_ss.add(when: 'CONFIG_PCI_EXPRESS', if_true: files('pcie_port.c', 'pcie_ho
system_ss.add_all(when: 'CONFIG_PCI', if_true: pci_ss)
system_ss.add(when: 'CONFIG_PCI', if_false: files('pci-stub.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('pci-stub.c'))

1
hw/remote/meson.build
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@ -11,7 +11,6 @@ remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('iommu.c'))
remote_ss.add(when: 'CONFIG_VFIO_USER_SERVER', if_true: libvfio_user_dep)
remote_ss.add(when: 'CONFIG_VFIO_USER_SERVER', if_true: files('vfio-user-obj.c'),
if_false: files('vfio-user-obj-stub.c'))
remote_ss.add(when: 'CONFIG_ALL', if_true: files('vfio-user-obj-stub.c'))
specific_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('memory.c'))
specific_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('proxy-memory-listener.c'))

5
hw/smbios/meson.build
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@ -6,8 +6,3 @@ smbios_ss.add(when: 'CONFIG_IPMI',
system_ss.add_all(when: 'CONFIG_SMBIOS', if_true: smbios_ss)
system_ss.add(when: 'CONFIG_SMBIOS', if_false: files('smbios-stub.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files(
'smbios-stub.c',
'smbios_type_38-stub.c',
))

2
hw/virtio/meson.build
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@ -74,8 +74,6 @@ specific_virtio_ss.add_all(when: 'CONFIG_VIRTIO_PCI', if_true: virtio_pci_ss)
system_ss.add_all(when: 'CONFIG_VIRTIO', if_true: system_virtio_ss)
system_ss.add(when: 'CONFIG_VIRTIO', if_false: files('vhost-stub.c'))
system_ss.add(when: 'CONFIG_VIRTIO', if_false: files('virtio-stub.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost-stub.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('virtio-stub.c'))
system_ss.add(files('virtio-hmp-cmds.c'))
specific_ss.add_all(when: 'CONFIG_VIRTIO', if_true: specific_virtio_ss)

32
meson.build
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@ -2888,7 +2888,6 @@ minikconf = find_program('scripts/minikconf.py')
config_all = {}
config_all_devices = {}
config_all_disas = {}
config_devices_mak_list = []
config_devices_h = {}
config_target_h = {}
@ -3014,7 +3013,6 @@ foreach target : target_dirs
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
@ -3073,24 +3071,6 @@ foreach target : target_dirs
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_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]
@ -3556,7 +3536,7 @@ foreach d, list : modules
foreach m, module_ss : list
if enable_modules
module_ss = module_ss.apply(config_all, strict: false)
module_ss = module_ss.apply(config_all_devices, strict: false)
sl = static_library(d + '-' + m, [genh, module_ss.sources()],
dependencies: [modulecommon, module_ss.dependencies()], pic: true)
if d == 'block'
@ -3751,13 +3731,15 @@ 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)
# Note that this library is never used directly (only through extract_objects)
# and is not built by default; therefore, source files not used by the build
# configuration will be in build.ninja, but are never built by default.
common_all = static_library('common',
build_by_default: false,
sources: common_all.sources() + genh,
sources: common_ss.all_sources() + genh,
include_directories: common_user_inc,
implicit_include_directories: false,
dependencies: common_all.dependencies(),
dependencies: common_ss.all_dependencies(),
name_suffix: 'fa')
feature_to_c = find_program('scripts/feature_to_c.py')
@ -4230,7 +4212,7 @@ if have_system
if xen.found()
summary_info += {'xen ctrl version': xen.version()}
endif
summary_info += {'Xen emulation': config_all.has_key('CONFIG_XEN_EMU')}
summary_info += {'Xen emulation': config_all_devices.has_key('CONFIG_XEN_EMU')}
endif
summary_info += {'TCG support': config_all.has_key('CONFIG_TCG')}
if config_all.has_key('CONFIG_TCG')

2
net/meson.build
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@ -41,7 +41,6 @@ system_ss.add(when: libxdp, if_true: files('af-xdp.c'))
if have_vhost_net_user
system_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('vhost-user.c'), if_false: files('vhost-user-stub.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost-user-stub.c'))
endif
if targetos == 'windows'
@ -57,7 +56,6 @@ else
endif
if have_vhost_net_vdpa
system_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('vhost-vdpa.c'), if_false: files('vhost-vdpa-stub.c'))
system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost-vdpa-stub.c'))
endif
vmnet_files = files(