[libcamera-devel] [PATCH 09/11] Adds Android makefiles to build libcamera inline with AOSP.
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Tue Oct 25 02:07:43 CEST 2022
Hi Nicholas,
Thank you for the patch.
On Mon, Oct 24, 2022 at 12:55:41AM -0500, Nicholas Roth via libcamera-devel wrote:
> From: Nicholas Roth <nicholas at rothemail.net>
The two files list third party copyrights, could you please indicate in
the commit message where that comes from ? A link to a git tree with the
code you started from would be good.
> ---
> android/Android.mk | 86 ++++++++++++
> android/meson_cross.mk | 296 +++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 382 insertions(+)
> create mode 100644 android/Android.mk
> create mode 100644 android/meson_cross.mk
>
> diff --git a/android/Android.mk b/android/Android.mk
> new file mode 100644
> index 00000000..ff0d1472
> --- /dev/null
> +++ b/android/Android.mk
> @@ -0,0 +1,86 @@
> +# SPDX-License-Identifier: Apache-2.0
> +#
> +# Copyright (C) 2021, GlobalLogic Ukraine
> +# Copyright (C) 2021, Roman Stratiienko (r.stratiienko at gmail.com)
> +#
> +# Android.mk - Android makefile
> +#
> +
> +ifneq ($(filter true, $(BOARD_LIBCAMERA_USES_MESON_BUILD)),)
I assume this variable, as well as BOARD_LIBCAMERA_IPAS and
BOARD_LIBCAMERA_PIPELINES, need to be defined externally. It would be
nice to add some Android build documentation to the Documentation/
directory.
> +
> +LOCAL_PATH := $(call my-dir)
> +LIBCAMERA_TOP := $(dir $(LOCAL_PATH))
> +LIBCAMERA_MESON_VERSION := .0.0.1
Is this something that can be provided by meson, to avoid hardcoding
version numbers in multiple places ? Or can the utils/gen-version.sh
script help ?
> +
> +include $(CLEAR_VARS)
> +
> +LOCAL_SHARED_LIBRARIES := libc libexif libjpeg libyuv_chromium libdl libyaml
> +MESON_GEN_PKGCONFIGS := libexif libjpeg yaml-0.1 libyuv dl
> +
> +ifeq ($(TARGET_IS_64_BIT),true)
> +LOCAL_MULTILIB := 64
> +else
> +LOCAL_MULTILIB := 32
> +endif
> +include $(LOCAL_PATH)/meson_cross.mk
> +
> +ifdef TARGET_2ND_ARCH
> +LOCAL_MULTILIB := 32
> +include $(LOCAL_PATH)/meson_cross.mk
> +endif
> +
> +#-------------------------------------------------------------------------------
> +
> +define libcamera-lib
> +LOCAL_MODULE_CLASS := SHARED_LIBRARIES
> +LOCAL_MODULE := $1
> +LOCAL_VENDOR_MODULE := true
> +LOCAL_MODULE_RELATIVE_PATH := $2
> +ifdef TARGET_2ND_ARCH
> +LOCAL_SRC_FILES_$(TARGET_ARCH) := $(call relative_top_path,$(LOCAL_PATH))$($3)
> +LOCAL_SRC_FILES_$(TARGET_2ND_ARCH) := $(call relative_top_path,$(LOCAL_PATH))$(2ND_$3)
> +LOCAL_MULTILIB := both
> +else
> +LOCAL_SRC_FILES := $(call relative_top_path,$(LOCAL_PATH))$($3)
> +endif
> +LOCAL_CHECK_ELF_FILES := false
> +LOCAL_MODULE_SUFFIX := .so$(${4})
> +include $(BUILD_PREBUILT)
> +include $(CLEAR_VARS)
> +endef
> +
> +__MY_SHARED_LIBRARIES := $(LOCAL_SHARED_LIBRARIES)
> +include $(CLEAR_VARS)
> +LOCAL_SHARED_LIBRARIES := $(__MY_SHARED_LIBRARIES)
> +
> +# Modules 'libcamera', produces '/vendor/lib{64}/libcamera.so'
> +$(eval $(call libcamera-lib,libcamera,,LIBCAMERA_BIN,LIBCAMERA_MESON_VERSION))
> +# Modules 'libcamera-base', produces '/vendor/lib{64}/libcamera-base.so'
> +$(eval $(call libcamera-lib,libcamera-base,,LIBCAMERA_BASE_BIN,LIBCAMERA_MESON_VERSION))
> +# Modules 'ipa_rkisp1', produces '/vendor/lib{64}/ipa_rkisp1.so'
> +$(eval $(call libcamera-lib,ipa_rkisp1,,LIBCAMERA_IPA_RKISP1_BIN,))
It would also be nice to avoid hardcoding the list of IPA modules (and
other files below), but I suppose that would be difficult ? Or could
'meson install' be used to install the files to a directory that would
then be picked by the Android build system ?
> +# Modules 'ipa_rkisp1', produces '/vendor/lib{64}/ipa_rpi.so'
> +$(eval $(call libcamera-lib,ipa_rpi,,LIBCAMERA_IPA_RASPBERRYPI_BIN,))
> +# Modules 'ipa_rkisp1', produces '/vendor/lib{64}/ipa_ipu3.so'
> +$(eval $(call libcamera-lib,ipa_ipu3,,LIBCAMERA_IPA_IPU3_BIN,))
> +# Modules 'ipa_rkisp1', produces '/vendor/lib{64}/ipa_vimc.so'
> +$(eval $(call libcamera-lib,ipa_vimc,,LIBCAMERA_IPA_VIMC_BIN,))
> +
> +# Modules 'camera.libcamera', produces '/vendor/lib{64}/hw/camera.libcamera.so' HAL
> +$(eval $(call libcamera-lib,camera.libcamera,hw,LIBCAMERA_HAL_BIN,))
> +
> +LOCAL_SHARED_LIBRARIES += libcamera libcamera-base ipa_rkisp1 ipa_rpi ipa_ipu3 ipa_vimc
> +LOCAL_REQUIRED_MODULES := libcamera libcamera-base ipa_rkisp1 ipa_rpi ipa_ipu3 ipa_vimc
> +
> +$(shell mkdir -p $(TARGET_OUT_VENDOR_ETC)/rkisp1/)
> +$(shell mkdir -p $(TARGET_OUT_VENDOR_ETC)/rpi/)
> +$(shell mkdir -p $(TARGET_OUT_VENDOR_ETC)/ipu3/)
> +$(shell mkdir -p $(TARGET_OUT_VENDOR_ETC)/vimc/)
> +$(shell cp $(LIBCAMERA_IPA_RKISP1_CONFIGS)/* $(TARGET_OUT_VENDOR_ETC)/rkisp1/)
> +$(shell cp $(LIBCAMERA_IPA_RASPBERRYPI_CONFIGS)/* $(TARGET_OUT_VENDOR_ETC)/rpi/)
> +$(shell cp $(LIBCAMERA_IPA_IPU3_CONFIGS)/* $(TARGET_OUT_VENDOR_ETC)/ipu3/)
> +$(shell cp $(LIBCAMERA_IPA_VIMC_CONFIGS)/* $(TARGET_OUT_VENDOR_ETC)/vimc/)
> +
> +#-------------------------------------------------------------------------------
> +
> +endif
> diff --git a/android/meson_cross.mk b/android/meson_cross.mk
> new file mode 100644
> index 00000000..bb1661cd
> --- /dev/null
> +++ b/android/meson_cross.mk
> @@ -0,0 +1,296 @@
> +# SPDX-License-Identifier: Apache-2.0
> +#
> +# Copyright (C) 2021, GlobalLogic Ukraine
> +# Copyright (C) 2021, Roman Stratiienko (r.stratiienko at gmail.com)
> +#
> +# meson_cross.mk - Android makefile
> +#
> +
> +# Turn "dir1/dir2/dir3/dir4" into "../../../../"
> +define relative_top_path
> +$(eval __s:=) \
> +$(foreach tmp,$(subst /,$(space),$1),$(eval __s:=$(__s)../)) \
> +$(__s)
> +endef
> +
> +MY_PATH := $(call my-dir)
> +
> +AOSP_ABSOLUTE_PATH := $(realpath .)
> +
> +libcam_m_dummy_$(LOCAL_MULTILIB) := $(TARGET_OUT_INTERMEDIATES)/LIBCAM_DUMMY_$(LOCAL_MULTILIB)/dummy.c
> +
> +$(libcam_m_dummy_$(LOCAL_MULTILIB)):
> + mkdir -p $(dir $@)
> + touch $@
> +
> +LOCAL_SRC_FILES := $(call relative_top_path,$(MY_PATH))$(libcam_m_dummy_$(LOCAL_MULTILIB))
> +LOCAL_VENDOR_MODULE := true
> +LOCAL_MODULE := libcam.dummy.$(LOCAL_MULTILIB)
> +
> +# Prepare intermediate variables by AOSP make/core internals
> +include $(BUILD_SHARED_LIBRARY)
> +
> +LOCAL_PATH := $(MY_PATH)
> +
> +link_deps := \
> + $(built_static_libraries) \
> + $(built_shared_libraries) \
> + $(built_whole_libraries) \
> + $(strip $(all_objects)) \
> + $(my_target_libatomic) \
> + $(my_target_libcrt_builtins) \
> + $(my_target_crtbegin_so_o) \
> + $(my_target_crtend_so_o)
> +
> +# Build using intermediate variables provided by AOSP make/core internals
> +M_TARGET_PREFIX := $(my_2nd_arch_prefix)
> +
> +LIBCAMERA_LIB_DIR := lib$(subst 32,,$(LOCAL_MULTILIB))
> +
> +MESON_OUT_DIR := $($(M_TARGET_PREFIX)TARGET_OUT_INTERMEDIATES)/MESON_LIBCAMERA
> +MESON_GEN_DIR := $(MESON_OUT_DIR)_GEN
> +MESON_GEN_FILES_TARGET := $(MESON_GEN_DIR)/.timestamp
> +
> +$(M_TARGET_PREFIX)LIBCAMERA_BIN := $(MESON_OUT_DIR)/install/usr/local/lib/libcamera.so
> +$(M_TARGET_PREFIX)LIBCAMERA_HAL_BIN := $(MESON_OUT_DIR)/install/usr/local/lib/libcamera-hal.so
> +$(M_TARGET_PREFIX)LIBCAMERA_BASE_BIN := $(MESON_OUT_DIR)/install/usr/local/lib/libcamera-base.so
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_RKISP1_BIN := $(MESON_OUT_DIR)/install/usr/local/lib/libcamera/ipa_rkisp1.so
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_RASPBERRYPI_BIN := $(MESON_OUT_DIR)/install/usr/local/lib/libcamera/ipa_rpi.so
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_IPU3_BIN := $(MESON_OUT_DIR)/install/usr/local/lib/libcamera/ipa_ipu3.so
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_VIMC_BIN := $(MESON_OUT_DIR)/install/usr/local/lib/libcamera/ipa_vimc.so
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_RKISP1_CONFIGS := $(MESON_OUT_DIR)/install/usr/local/share/libcamera/ipa/rkisp1
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_RASPBERRYPI_CONFIGS := $(MESON_OUT_DIR)/install/usr/local/share/libcamera/ipa/raspberrypi
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_IPU3_CONFIGS := $(MESON_OUT_DIR)/install/usr/local/share/libcamera/ipa/ipu3
> +$(M_TARGET_PREFIX)LIBCAMERA_IPA_VIMC_CONFIGS := $(MESON_OUT_DIR)/install/usr/local/share/libcamera/ipa/vimc
> +
> +LIBCAMERA_BINS := \
> + $($(M_TARGET_PREFIX)LIBCAMERA_BIN) \
> + $($(M_TARGET_PREFIX)LIBCAMERA_HAL_BIN) \
> + $($(M_TARGET_PREFIX)LIBCAMERA_BASE_BIN) \
> + $($(M_TARGET_PREFIX)LIBCAMERA_IPA_RKISP1_BIN) \
> + $($(M_TARGET_PREFIX)LIBCAMERA_IPA_RASPBERRYPI_BIN) \
> + $($(M_TARGET_PREFIX)LIBCAMERA_IPA_IPU3_BIN) \
> + $($(M_TARGET_PREFIX)LIBCAMERA_IPA_VIMC_BIN)
> +
> +MESON_GEN_NINJA := \
> + cd $(MESON_OUT_DIR) && PATH=/usr/bin:/usr/local/bin:$$PATH meson ./build \
> + --cross-file $(AOSP_ABSOLUTE_PATH)/$(MESON_GEN_DIR)/aosp_cross \
> + --buildtype=release \
> + -Dandroid=enabled \
> + -Dipas=$(subst $(space),$(comma),$(BOARD_LIBCAMERA_IPAS)) \
> + -Dpipelines=$(subst $(space),$(comma),$(BOARD_LIBCAMERA_PIPELINES)) \
> + -Dsysconfdir=/vendor/etc \
> + -Dtest=false \
> + -Dallow_unsigned_ipas_in_process=true
> +
> +MESON_BUILD := PATH=/usr/bin:/bin:/sbin:$$PATH ninja -C $(MESON_OUT_DIR)/build
> +
> +$(MESON_GEN_FILES_TARGET): MESON_CPU_FAMILY := $(subst arm64,aarch64,$(TARGET_$(M_TARGET_PREFIX)ARCH))
> +
> +define create-pkgconfig
> +echo -e "Name: $2" \
> + "\nDescription: $2" \
> + "\nVersion: $3" > $1/$2.pc
> +
> +endef
> +
> +# Taken from build/make/core/binary.mk. We need this
> +# to use definitions from build/make/core/definitions.mk
> +$(MESON_GEN_FILES_TARGET): PRIVATE_GLOBAL_C_INCLUDES := $(my_target_global_c_includes)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_GLOBAL_C_SYSTEM_INCLUDES := $(my_target_global_c_system_includes)
> +
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_GLOBAL_CFLAGS := $(my_target_global_cflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_GLOBAL_CONLYFLAGS := $(my_target_global_conlyflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_GLOBAL_CPPFLAGS := $(my_target_global_cppflags)
> +
> +$(MESON_GEN_FILES_TARGET): PRIVATE_2ND_ARCH_VAR_PREFIX := $(M_TARGET_PREFIX)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CC := $(my_cc)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_LINKER := $(my_linker)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CXX := $(my_cxx)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CXX_LINK := $(my_cxx_link)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_ASFLAGS := $(my_asflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CONLYFLAGS := $(my_conlyflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CFLAGS := $(my_cflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CPPFLAGS := $(my_cppflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CFLAGS_NO_OVERRIDE := $(my_cflags_no_override)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_CPPFLAGS_NO_OVERRIDE := $(my_cppflags_no_override)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_RTTI_FLAG := $(LOCAL_RTTI_FLAG)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_DEBUG_CFLAGS := $(debug_cflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_C_INCLUDES := $(my_c_includes)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_IMPORTED_INCLUDES := $(imported_includes)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_LDFLAGS := $(my_ldflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_LDLIBS := $(my_ldlibs)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_GLOBAL_LDFLAGS := $(my_target_global_ldflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TIDY_CHECKS := $(my_tidy_checks)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TIDY_FLAGS := $(my_tidy_flags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_ARFLAGS := $(my_arflags)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_ALL_SHARED_LIBRARIES := $(built_shared_libraries)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_ALL_STATIC_LIBRARIES := $(built_static_libraries)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_ALL_WHOLE_STATIC_LIBRARIES := $(built_whole_libraries)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_ALL_OBJECTS := $(strip $(all_objects))
> +
> +$(MESON_GEN_FILES_TARGET): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
> +
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_LIBCRT_BUILTINS := $(my_target_libcrt_builtins)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_LIBATOMIC := $(my_target_libatomic)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_CRTBEGIN_SO_O := $(my_target_crtbegin_so_o)
> +$(MESON_GEN_FILES_TARGET): PRIVATE_TARGET_CRTEND_SO_O := $(my_target_crtend_so_o)
> +##
> +
> +define m-lld-flags
> + -nostdlib -Wl,--gc-sections \
> + $(PRIVATE_TARGET_CRTBEGIN_SO_O) \
> + $(PRIVATE_ALL_OBJECTS) \
> + -Wl,--whole-archive \
> + $(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES) \
> + -Wl,--no-whole-archive \
> + $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \
> + $(PRIVATE_ALL_STATIC_LIBRARIES) \
> + $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
> + $(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_TARGET_COVERAGE_LIB)) \
> + $(PRIVATE_TARGET_LIBCRT_BUILTINS) \
> + $(PRIVATE_TARGET_LIBATOMIC) \
> + $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
> + $(PRIVATE_LDFLAGS) \
> + $(PRIVATE_ALL_SHARED_LIBRARIES) \
> + $(PRIVATE_TARGET_CRTEND_SO_O) \
> + $(PRIVATE_LDLIBS)
> +endef
> +
> +define m-lld-flags-cleaned
> + $(subst prebuilts/,$(AOSP_ABSOLUTE_PATH)/prebuilts/, \
> + $(subst out/,$(AOSP_ABSOLUTE_PATH)/out/, \
> + $(subst -Wl$(comma)--fatal-warnings,, \
> + $(subst -Wl$(comma)--no-undefined-version,, \
> + $(subst -Wl$(comma)--gc-sections,, \
> + $(patsubst %dummy.o,, \
> + $(m-lld-flags)))))))
> +endef
> +
> +define m-cpp-flags
> + $(PRIVATE_TARGET_GLOBAL_CFLAGS) \
> + $(PRIVATE_TARGET_GLOBAL_CPPFLAGS) \
> + $(PRIVATE_ARM_CFLAGS) \
> + $(PRIVATE_RTTI_FLAG) \
> + $(PRIVATE_CFLAGS) \
> + $(PRIVATE_CPPFLAGS) \
> + $(PRIVATE_DEBUG_CFLAGS) \
> + $(PRIVATE_CFLAGS_NO_OVERRIDE) \
> + $(PRIVATE_CPPFLAGS_NO_OVERRIDE)
> +endef
> +
> +define m-c-flags
> + $(PRIVATE_TARGET_GLOBAL_CFLAGS) \
> + $(PRIVATE_TARGET_GLOBAL_CONLYFLAGS) \
> + $(PRIVATE_ARM_CFLAGS) \
> + $(PRIVATE_CFLAGS) \
> + $(PRIVATE_CONLYFLAGS) \
> + $(PRIVATE_DEBUG_CFLAGS) \
> + $(PRIVATE_CFLAGS_NO_OVERRIDE)
> +endef
> +
> +define filter-c-flags
> + $(subst -std=gnu++17,, \
> + $(subst -fno-rtti,, \
> + $(patsubst -W%,, \
> + $1)))
> +endef
> +
> +define m-c-includes-common
> +$(addprefix -I , $(PRIVATE_C_INCLUDES)) \
> +$(if $(PRIVATE_NO_DEFAULT_COMPILER_FLAGS),,\
> + $(addprefix -I ,\
> + $(filter-out $(PRIVATE_C_INCLUDES), \
> + $(PRIVATE_GLOBAL_C_INCLUDES))) \
> + $(addprefix -isystem ,\
> + $(filter-out $(PRIVATE_C_INCLUDES), \
> + $(PRIVATE_GLOBAL_C_SYSTEM_INCLUDES))))
> +endef
> +
> +ifeq ($(shell test $(PLATFORM_SDK_VERSION) -ge 30; echo $$?), 0)
> +# Android 11+
> +define m-c-includes
> +$(foreach i,$(PRIVATE_IMPORTED_INCLUDES),$(EXPORTS.$(i)))\
> +$(m-c-includes-common)
> +endef
> +define postprocess-includes
> +endef
> +else
> +# Android 10,9
> +$(MESON_GEN_FILES_TARGET): PRIVATE_IMPORT_INCLUDES := $(import_includes)
> +define postprocess-includes
> + echo " $$(cat $(PRIVATE_IMPORT_INCLUDES)) " > $(MESON_GEN_DIR)/import_includes && \
> + sed -i -e ':a;N;$$!ba;s/\n/ /g' \
> + -e 's# \{2,\}# #g' \
> + -e 's# -isystem # -isystem#g' \
> + -e 's# -I # -I#g' \
> + -e 's# -I# -I$(AOSP_ABSOLUTE_PATH)/#g' \
> + -e 's# -isystem# -isystem$(AOSP_ABSOLUTE_PATH)/#g' \
> + -e "s# #','#g" $(MESON_GEN_DIR)/import_includes && \
> + sed -i "s#<_IMPORT_INCLUDES>#$$(cat $(MESON_GEN_DIR)/import_includes)#g" $(MESON_GEN_DIR)/aosp_cross
> +endef
> +define m-c-includes
> +<_IMPORT_INCLUDES> $(m-c-includes-common)
> +endef
> +endif
> +
> +define m-c-abs-includes
> + $(subst $(space)-isystem,$(space)-isystem$(AOSP_ABSOLUTE_PATH)/, \
> + $(subst $(space)-I, -I$(AOSP_ABSOLUTE_PATH)/, \
> + $(subst $(space)-I$(space),$(space)-I, \
> + $(subst $(space)-isystem$(space),$(space)-isystem, \
> + $(strip $(m-c-includes))))))
> +endef
> +
> +$(MESON_GEN_FILES_TARGET): MESON_GEN_PKGCONFIGS:=$(MESON_GEN_PKGCONFIGS)
> +$(MESON_GEN_FILES_TARGET): MESON_GEN_DIR:=$(MESON_GEN_DIR)
> +$(MESON_GEN_FILES_TARGET): $(sort $(shell find -L $(LIBCAMERA_TOP) -not -path '*/\.*'))
> + mkdir -p $(dir $@)
> + echo -e "[properties]\n" \
> + "c_args = [$(foreach flag, $(call filter-c-flags,$(m-c-flags) $(m-c-abs-includes)),'$(flag)', )'']\n" \
> + "cpp_args = [$(foreach flag, $(call filter-c-flags,$(m-cpp-flags) $(m-c-abs-includes)),'$(flag)', )'']\n" \
> + "c_link_args = [$(foreach flag, $(m-lld-flags-cleaned),'$(flag)',)'']\n" \
> + "cpp_link_args = [$(foreach flag, $(m-lld-flags-cleaned),'$(flag)',)'']\n" \
> + "needs_exe_wrapper = true\n" \
> + "[binaries]\n" \
> + "ar = '$(AOSP_ABSOLUTE_PATH)/$($($(M_TARGET_PREFIX))TARGET_AR)'\n" \
> + "c = [$(foreach arg,$(PRIVATE_CC),'$(subst prebuilts/,$(AOSP_ABSOLUTE_PATH)/prebuilts/,$(arg))',)'']\n" \
> + "cpp = [$(foreach arg,$(PRIVATE_CXX),'$(subst prebuilts/,$(AOSP_ABSOLUTE_PATH)/prebuilts/,$(arg))',)'']\n" \
> + "c_ld = 'lld'\n" \
> + "cpp_ld = 'lld'\n\n" \
> + "pkgconfig = ['env', 'PKG_CONFIG_LIBDIR=' + '$(AOSP_ABSOLUTE_PATH)/$(MESON_GEN_DIR)', '/usr/bin/pkg-config']\n\n" \
> + "llvm-config = '/dev/null'\n" \
> + "[host_machine]\n" \
> + "system = 'linux'\n" \
> + "cpu_family = '$(MESON_CPU_FAMILY)'\n" \
> + "cpu = '$(MESON_CPU_FAMILY)'\n" \
> + "endian = 'little'" > $(dir $@)/aosp_cross
> +
> + #
> + $(foreach pkg, $(MESON_GEN_PKGCONFIGS), $(call create-pkgconfig,$(dir $@),$(word 1, $(subst :, ,$(pkg))),$(word 2, $(subst :, ,$(pkg)))))
> + touch $@
> +
> +$(MESON_OUT_DIR)/.build.timestamp: MESON_GEN_NINJA:=$(MESON_GEN_NINJA)
> +$(MESON_OUT_DIR)/.build.timestamp: MESON_BUILD:=$(MESON_BUILD)
> +$(MESON_OUT_DIR)/.build.timestamp: $(MESON_GEN_FILES_TARGET) $(link_deps)
> + rm -rf $(dir $@)
> + mkdir -p $(dir $@)
> + mkdir -p $(dir $@)/build
> + # Meson will update timestamps in sources directory, continuously retriggering the build
> + # even if nothing changed. Copy sources into intermediate dir to avoid this effect.
> + cp -r $(LIBCAMERA_TOP)/* $(dir $@)
> + $(MESON_GEN_NINJA)
> + $(MESON_BUILD)
> + touch $@
> +
> +$(MESON_OUT_DIR)/install/.install.timestamp: MESON_BUILD:=$(MESON_BUILD)
> +$(MESON_OUT_DIR)/install/.install.timestamp: $(MESON_OUT_DIR)/.build.timestamp
> + rm -rf $(dir $@)
> + mkdir -p $(dir $@)
> + DESTDIR=$(AOSP_ABSOLUTE_PATH)/$(dir $@) $(MESON_BUILD) install
> + touch $@
> +
> +$(LIBCAMERA_BINS): $(MESON_OUT_DIR)/install/.install.timestamp
> + echo "Build $@"
> + touch $@
--
Regards,
Laurent Pinchart
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