From d1d5e9eefd7f0165884998f3054836580a69e1a4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Wed, 7 Jul 2021 14:17:44 +0100 Subject: [PATCH] configure: allow the selection of alternate config in the build MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit While the default config works well enough it does end up enabling a lot of stuff. For more minimal builds we can select a different list of devices and let Kconfig work out what we want. For example: ../../configure --without-default-features \ --target-list=arm-softmmu,aarch64-softmmu \ --with-devices-aarch64=minimal will override the aarch64-softmmu default set of devices with a more minimal set of devices that just enables the virt and sbsa-ref models. Signed-off-by: Alex Bennée Cc: Philippe Mathieu-Daudé Cc: Paolo Bonzini Reviewed-by: Richard Henderson Message-Id: <20210707131744.26027-6-alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini --- configs/devices/aarch64-softmmu/minimal.mak | 9 ++++++++ configure | 24 ++++++++++++++++++++- meson.build | 3 ++- 3 files changed, 34 insertions(+), 2 deletions(-) create mode 100644 configs/devices/aarch64-softmmu/minimal.mak diff --git a/configs/devices/aarch64-softmmu/minimal.mak b/configs/devices/aarch64-softmmu/minimal.mak new file mode 100644 index 0000000000..0ebc1dca56 --- /dev/null +++ b/configs/devices/aarch64-softmmu/minimal.mak @@ -0,0 +1,9 @@ +# +# A minimal version of the config that only supports only a few +# virtual machines. This avoids bringing in any of numerous legacy +# features from the 32bit platform (although virt still supports 32bit +# itself) +# + +CONFIG_ARM_VIRT=y +CONFIG_SBSA_REF=y diff --git a/configure b/configure index 4eba89f823..85db248ac1 100755 --- a/configure +++ b/configure @@ -915,6 +915,18 @@ for opt do ;; --without-default-devices) default_devices="false" ;; + --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option" + ;; + --with-devices-*) device_arch=${opt#--with-devices-}; + device_arch=${device_arch%%=*} + cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak + if test -f "$cf"; then + device_archs="$device_archs $device_arch" + eval "devices_${device_arch}=\$optarg" + else + error_exit "File $cf does not exist" + fi + ;; --without-default-features) # processed above ;; --enable-gprof) gprof="yes" @@ -1764,7 +1776,8 @@ Advanced options (experts only): --without-default-features default all --enable-* options to "disabled" --without-default-devices do not include any device that is not needed to start the emulator (only use if you are including - desired devices in default-configs/devices/) + desired devices in configs/devices/) + --with-devices-ARCH=NAME override default configs/devices --enable-debug enable common debug build options --enable-sanitizers enable default sanitizers --enable-tsan enable thread sanitizer @@ -5082,6 +5095,15 @@ if test "$skip_meson" = no; then echo "# Automatically generated by configure - do not modify" > $cross echo "[properties]" >> $cross + + # unroll any custom device configs + if test -n "$device_archs"; then + for a in $device_archs; do + eval "c=\$devices_${a}" + echo "${a}-softmmu = '$c'" >> $cross + done + fi + test -z "$cxx" && echo "link_language = 'c'" >> $cross echo "[built-in options]" >> $cross echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross diff --git a/meson.build b/meson.build index 71c7462e89..651c3b114b 100644 --- a/meson.build +++ b/meson.build @@ -1595,9 +1595,10 @@ foreach target : target_dirs 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 / 'default.mak', 'Kconfig'], + input: ['configs/devices' / target / config_input + '.mak', 'Kconfig'], output: config_devices_mak, depfile: config_devices_mak + '.d', capture: true,