huerli 发布的最佳帖子

@huerli
运行了一下lv_g2d_test也报错

LV_2048文件夹下的Makefile

include $(TOPDIR)/rules.mk
include $(BUILD_DIR)/package.mk
include ../sunxifb.mk

PKG_NAME:=lv_2048
PKG_VERSION:=8.1.0
PKG_RELEASE:=1

PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
define Package/$(PKG_NAME)
  SECTION:=gui
  SUBMENU:=Littlevgl
  CATEGORY:=Gui
  DEPENDS:=+LVGL8_USE_SUNXIFB_G2D:libuapi +LVGL8_USE_SUNXIFB_G2D:kmod-sunxi-g2d \
         +LVGL8_USE_FREETYPE:libfreetype
  TITLE:=lvgl 2048 
endef

PKG_CONFIG_DEPENDS := \
	CONFIG_LVGL8_USE_SUNXIFB_DOUBLE_BUFFER \
	CONFIG_LVGL8_USE_SUNXIFB_CACHE \
	CONFIG_LVGL8_USE_SUNXIFB_G2D \
	CONFIG_LVGL8_USE_SUNXIFB_G2D_ROTATE

define Package/$(PKG_NAME)/config
endef

define Package/$(PKG_NAME)/Default
endef

define Package/$(PKG_NAME)/description
  a lvgl 2048 v8.1.0
endef

define Build/Prepare
	$(INSTALL_DIR) $(PKG_BUILD_DIR)/
	$(CP) ./src $(PKG_BUILD_DIR)/
	$(CP) ./../lvgl $(PKG_BUILD_DIR)/src/
	$(CP) ./../lv_drivers $(PKG_BUILD_DIR)/src/
endef

define Build/Configure
endef

TARGET_CFLAGS+=-I$(PKG_BUILD_DIR)/src

ifeq ($(CONFIG_LVGL8_USE_SUNXIFB_G2D),y)
TARGET_CFLAGS+=-DLV_USE_SUNXIFB_G2D_FILL \
                -DLV_USE_SUNXIFB_G2D_BLEND \
                -DLV_USE_SUNXIFB_G2D_BLIT \
                -DLV_USE_SUNXIFB_G2D_SCALE
endif

define Build/Compile
	$(MAKE) -C $(PKG_BUILD_DIR)/src\
		ARCH="$(TARGET_ARCH)" \
		AR="$(TARGET_AR)" \
		CC="$(TARGET_CC)" \
		CXX="$(TARGET_CXX)" \
		CFLAGS="$(TARGET_CFLAGS)" \
		LDFLAGS="$(TARGET_LDFLAGS)" \
		INSTALL_PREFIX="$(PKG_INSTALL_DIR)" \
		all
endef

define Package/$(PKG_NAME)/install
	$(INSTALL_DIR) $(1)/usr/bin/
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/$(PKG_NAME) $(1)/usr/bin/
endef

$(eval $(call BuildPackage,$(PKG_NAME)))

LV_2048/src 文件夹下的Makefile

#
# Makefile
#
CC ?= gcc
LVGL_DIR_NAME ?= lvgl
LVGL_DIR ?= ${shell pwd}
CFLAGS ?= -O3 -g0 -I$(LVGL_DIR)/ -Wall -Wshadow -Wundef -Wmissing-prototypes -Wno-discarded-qualifiers -Wall -Wextra -Wno-unused-function -Wno-error=strict-prototypes -Wpointer-arith -fno-strict-aliasing -Wno-error=cpp -Wuninitialized -Wmaybe-uninitialized -Wno-unused-parameter -Wno-missing-field-initializers -Wtype-limits -Wsizeof-pointer-memaccess -Wno-format-nonliteral -Wno-cast-qual -Wunreachable-code -Wno-switch-default -Wreturn-type -Wmultichar -Wformat-security -Wno-ignored-qualifiers -Wno-error=pedantic -Wno-sign-compare -Wno-error=missing-prototypes -Wdouble-promotion -Wclobbered -Wdeprecated -Wempty-body -Wtype-limits -Wshift-negative-value -Wstack-usage=2048 -Wno-unused-value -Wno-unused-parameter -Wno-missing-field-initializers -Wuninitialized -Wmaybe-uninitialized -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wtype-limits -Wsizeof-pointer-memaccess -Wno-format-nonliteral -Wpointer-arith -Wno-cast-qual -Wmissing-prototypes -Wunreachable-code -Wno-switch-default -Wreturn-type -Wmultichar -Wno-discarded-qualifiers -Wformat-security -Wno-ignored-qualifiers -Wno-sign-compare
LDFLAGS ?= -lm
BIN = lv_2048


#Collect the files to compile
SRCDIRS   =  $(shell find . -maxdepth 1 -type d)
MAINSRC = $(foreach dir,$(SRCDIRS),$(wildcard $(dir)/*.c))

include $(LVGL_DIR)/lvgl/lvgl.mk
include $(LVGL_DIR)/lv_drivers/lv_drivers.mk
include ./lv_lib_100ask/lv_lib_100ask.mk

OBJEXT ?= .o

AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))

MAINOBJ = $(MAINSRC:.c=$(OBJEXT))

SRCS = $(ASRCS) $(CSRCS) $(MAINSRC)
OBJS = $(AOBJS) $(COBJS)

## MAINOBJ -> OBJFILES

all: default

%.o: %.c
	@$(CC)  $(CFLAGS) -c $< -o $@
	@echo "CC $<"

default: $(AOBJS) $(COBJS) $(MAINOBJ)
	$(CC) -o $(BIN) $(MAINOBJ) $(AOBJS) $(COBJS) $(LDFLAGS)

clean: 
	rm -f $(BIN) $(AOBJS) $(COBJS) $(MAINOBJ)

@name_10____231
好像是g2d有问题，在makefile中把g2d关了我就正常了