Question

我在我的机器上使用了ndk revision r10d来成功编译和运行示例程序。但是这个使用相同头文件stdio.h的新项目会产生以下错误。错误来自文件，stdio引用。虽然我没有看到文件中定义的变量，但我想了解它上次是如何工作的。错误来自/linux/types.h文件，指出__16未定义类型。

@Michael-谢谢。我做了你的建议，这里是Android.mk文件和编译结果。基本上API级别已更改，但错误仍然存在：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS) 
# give module name
APP_PLATFORM := android-18
LOCAL_MODULE := hello_tz  
$(warning This is in NDK_ROOT $(NDK_ROOT))
LOCAL_C_INCLUDES += $(NDK_ROOT)/platforms/$(APP_PLATFORM)/arch-arm/usr/include
APP_ABI := armeabi-v7a
#LOCAL_CFLAGS := -mcpu=cortex-m3 -mthumb -march=armv7-a -mtune=cortex-a15
#LOCAL_CFLAGS := -mcpu=cortex-a15 -march=armv7-a
LOCAL_CFLAGS := -D__ASSEMBLY__ -mabi=aapcs-linux -gdwarf-2 -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-
aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -Os -Wno
-maybe-uninitialized -marm -fno-dwarf2-cfi-asm -fstack-protector -mabi=aapcs-linux -mno-thumb-interwork -funwind-tables 
-D__LINUX_ARM_ARCH__=7 -mcpu=cortex-a15 -msoft-float -Uarm -Wframe-larger-than=1024 -Wno-unused-but-set-variable -fomit-
frame-pointer -g -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fconserve-stack -DCC_HAVE_ASM_GOT
O
# list your C files to compile
FILE_LIST := $(patsubst %.c,%.c.arm,$(wildcard $(LOCAL_PATH)/*.c))
#$(warning here is what is in FILE_LIST after an attempt to collect all the C files$(FILE_LIST))
FILE_LIST += $(wildcard $(LOCAL_PATH)/*.s)
#$(warning here is what is in FILE_LIST after an attempt to collect all the S files$(FILE_LIST))
LOCAL_SRC_FILES := $(FILE_LIST:$(LOCAL_PATH)/%=%)
# this option will build executables instead of building library for android application.
include $(BUILD_EXECUTABLE)


In file included from /home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/sys/types.h:39:0,
                 from /home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/stdio.h:50,
                 from jni/main_normal.c:1:
/home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/linux/types.h:21:1: error: unknown type name '__u16'
 typedef __u16 __bitwise __le16;
 ^
/home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/linux/types.h:22:1: error: unknown type name '__u16'
 typedef __u16 __bitwise __be16;
 ^
/home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/linux/types.h:23:1: error: unknown type name '__u32'
 typedef __u32 __bitwise __le32;
 ^
/home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/linux/types.h:24:1: error: unknown type name '__u32'
 typedef __u32 __bitwise __be32;
 ^
/home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/linux/types.h:26:1: error: unknown type name '__u64'
 typedef __u64 __bitwise __le64;
 ^
/home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/linux/types.h:27:1: error: unknown type name '__u64'
 typedef __u64 __bitwise __be64;
 ^
In file included from /home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/stdio.h:50:0,
                 from jni/main_normal.c:1:
/home/sansari/android/android-ndk-r10d/platforms/android-18/arch-arm/usr/include/sys/types.h:42:1: error: unknown type name '__u32'
 typedef __u32    __kernel_dev_t;

linux / types.h：21：1：错误：未知类型名称'__u16'

0 个答案: