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authorAlex Bennée <alex.bennee@linaro.org>2020-12-10 19:04:13 +0000
committerPaolo Bonzini <pbonzini@redhat.com>2021-01-02 21:03:09 +0100
commitc87ea11631119175a581b17900ea62e127638352 (patch)
tree1058550b59714cddd88e08a89564b6bc8be513ad /configure
parent0e8e77d487b3d8ae33158e61c30e1fe5c753a114 (diff)
configure: add --without-default-features
By default QEMU enables a lot of features if it can probe and find the support libraries. It also enables a bunch of features by default. This patch adds the ability to build --without-default-features which can be paired with a --without-default-devices for a barely functional build. The main use case for this is testing our build assumptions and for minimising the amount of stuff you build if you just want to test a particular feature on your relatively slow emulated test system. On it's own I go from: $ ls -lh qemu-system-aarch64 -rwxr-xr-x 1 alex alex 120M Dec 10 12:45 qemu-system-aarch64* $ ldd qemu-system-aarch64 | wc -l 170 to: $ ls -lh qemu-aarch64 -rwxr-xr-x 1 alex alex 43M Dec 10 12:41 qemu-aarch64* $ ldd qemu-system-aarch64 | wc -l 57 which is still able to run my default Debian ARM64 machine with a lot less fat involved. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Thomas Huth <thuth@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201210190417.31673-5-alex.bennee@linaro.org>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure155
1 files changed, 85 insertions, 70 deletions
diff --git a/configure b/configure
index 487d272921..ef96acdc0a 100755
--- a/configure
+++ b/configure
@@ -293,8 +293,19 @@ unset target_list_exclude
# Distributions want to ensure that several features are compiled in, and it
# is impossible without a --enable-foo that exits if a feature is not found.
-brlapi=""
-curl=""
+default_feature=""
+# parse CC options second
+for opt do
+ optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
+ case "$opt" in
+ --without-default-features)
+ default_feature="no"
+ ;;
+ esac
+done
+
+brlapi="$default_feature"
+curl="$default_feature"
iconv="auto"
curses="auto"
docs="auto"
@@ -303,52 +314,52 @@ netmap="no"
sdl="auto"
sdl_image="auto"
virtiofsd="auto"
-virtfs=""
+virtfs="$default_feature"
libudev="auto"
mpath="auto"
vnc="enabled"
sparse="auto"
-vde=""
+vde="$default_feature"
vnc_sasl="auto"
vnc_jpeg="auto"
vnc_png="auto"
xkbcommon="auto"
-xen=""
-xen_ctrl_version=""
+xen="$default_feature"
+xen_ctrl_version="$default_feature"
xen_pci_passthrough="auto"
-linux_aio=""
-linux_io_uring=""
-cap_ng=""
-attr=""
-libattr=""
-xfs=""
+linux_aio="$default_feature"
+linux_io_uring="$default_feature"
+cap_ng="$default_feature"
+attr="$default_feature"
+libattr="$default_feature"
+xfs="$default_feature"
tcg="enabled"
-membarrier=""
-vhost_net=""
-vhost_crypto=""
-vhost_scsi=""
-vhost_vsock=""
+membarrier="$default_feature"
+vhost_net="$default_feature"
+vhost_crypto="$default_feature"
+vhost_scsi="$default_feature"
+vhost_vsock="$default_feature"
vhost_user="no"
vhost_user_blk_server="auto"
-vhost_user_fs=""
+vhost_user_fs="$default_feature"
kvm="auto"
hax="auto"
hvf="auto"
whpx="auto"
-rdma=""
-pvrdma=""
+rdma="$default_feature"
+pvrdma="$default_feature"
gprof="no"
debug_tcg="no"
debug="no"
sanitizers="no"
tsan="no"
-fortify_source=""
+fortify_source="$default_feature"
strip_opt="yes"
tcg_interpreter="no"
bigendian="no"
mingw32="no"
gcov="no"
-EXESUF=""
+EXESUF="$default_feature"
HOST_DSOSUF=".so"
modules="no"
module_upgrades="no"
@@ -370,81 +381,81 @@ pie=""
qom_cast_debug="yes"
trace_backends="log"
trace_file="trace"
-spice=""
-rbd=""
-smartcard=""
+spice="$default_feature"
+rbd="$default_feature"
+smartcard="$default_feature"
u2f="auto"
-libusb=""
-usb_redir=""
-opengl=""
+libusb="$default_feature"
+usb_redir="$default_feature"
+opengl="$default_feature"
opengl_dmabuf="no"
cpuid_h="no"
-avx2_opt=""
+avx2_opt="$default_feature"
capstone="auto"
-lzo=""
-snappy=""
-bzip2=""
-lzfse=""
-zstd=""
-guest_agent=""
+lzo="$default_feature"
+snappy="$default_feature"
+bzip2="$default_feature"
+lzfse="$default_feature"
+zstd="$default_feature"
+guest_agent="$default_feature"
guest_agent_with_vss="no"
guest_agent_ntddscsi="no"
-guest_agent_msi=""
-vss_win32_sdk=""
+guest_agent_msi="$default_feature"
+vss_win32_sdk="$default_feature"
win_sdk="no"
-want_tools=""
-libiscsi=""
-libnfs=""
+want_tools="$default_feature"
+libiscsi="$default_feature"
+libnfs="$default_feature"
coroutine=""
-coroutine_pool=""
+coroutine_pool="$default_feature"
debug_stack_usage="no"
crypto_afalg="no"
-seccomp=""
-glusterfs=""
+seccomp="$default_feature"
+glusterfs="$default_feature"
glusterfs_xlator_opt="no"
glusterfs_discard="no"
glusterfs_fallocate="no"
glusterfs_zerofill="no"
glusterfs_ftruncate_has_stat="no"
glusterfs_iocb_has_stat="no"
-gtk=""
+gtk="$default_feature"
gtk_gl="no"
tls_priority="NORMAL"
-gnutls=""
-nettle=""
+gnutls="$default_feature"
+nettle="$default_feature"
nettle_xts="no"
-gcrypt=""
+gcrypt="$default_feature"
gcrypt_hmac="no"
gcrypt_xts="no"
qemu_private_xts="yes"
-auth_pam=""
-vte=""
-virglrenderer=""
-tpm=""
-libssh=""
-live_block_migration="yes"
-numa=""
+auth_pam="$default_feature"
+vte="$default_feature"
+virglrenderer="$default_feature"
+tpm="$default_feature"
+libssh="$default_feature"
+live_block_migration=${default_feature:-yes}
+numa="$default_feature"
tcmalloc="no"
jemalloc="no"
-replication="yes"
-bochs="yes"
-cloop="yes"
-dmg="yes"
-qcow1="yes"
-vdi="yes"
-vvfat="yes"
-qed="yes"
-parallels="yes"
+replication=${default_feature:-yes}
+bochs=${default_feature:-yes}
+cloop=${default_feature:-yes}
+dmg=${default_feature:-yes}
+qcow1=${default_feature:-yes}
+vdi=${default_feature:-yes}
+vvfat=${default_feature:-yes}
+qed=${default_feature:-yes}
+parallels=${default_feature:-yes}
sheepdog="no"
-libxml2=""
+libxml2="$default_feature"
debug_mutex="no"
-libpmem=""
+libpmem="$default_feature"
default_devices="yes"
plugins="no"
fuzzing="no"
rng_none="no"
-secret_keyring=""
-libdaxctl=""
+secret_keyring="$default_feature"
+libdaxctl="$default_feature"
meson=""
ninja=""
skip_meson=no
@@ -455,7 +466,7 @@ fuse_lseek="auto"
bogus_os="no"
malloc_trim="auto"
-# parse CC options first
+# parse CC options second
for opt do
optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
case "$opt" in
@@ -798,7 +809,7 @@ Linux)
audio_possible_drivers="oss alsa sdl pa"
linux="yes"
linux_user="yes"
- vhost_user="yes"
+ vhost_user=${default_feature:-yes}
;;
esac
@@ -942,6 +953,8 @@ for opt do
;;
--without-default-devices) default_devices="no"
;;
+ --without-default-features) # processed above
+ ;;
--enable-gprof) gprof="yes"
;;
--enable-gcov) gcov="yes"
@@ -1747,7 +1760,8 @@ Advanced options (experts only):
--gdb=GDB-path gdb to use for gdbstub tests [$gdb_bin]
Optional features, enabled with --enable-FEATURE and
-disabled with --disable-FEATURE, default is enabled if available:
+disabled with --disable-FEATURE, default is enabled if available
+(unless built with --without-default-features):
system all system emulation targets
user supported user emulation targets
@@ -6958,6 +6972,7 @@ NINJA=$ninja $meson setup \
-Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
-Dvhost_user_blk_server=$vhost_user_blk_server \
-Dfuse=$fuse -Dfuse_lseek=$fuse_lseek \
+ $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
$cross_arg \
"$PWD" "$source_path"