Android NDK中的ICU库

时间:2010-11-12 20:54:07

标签: android-ndk icu

我正在尝试为依赖于ICU库(libicuuc.so和libicui18n.so)的C库创建一个JNI包装器。

我尝试在我的NDK中构建ICU4C(标准版和CrystaX版,在Mac OS X机器上),并继续遇到如下链接问题:

/Users/kyip/KyVmShared/KyAndroid/myproject/obj/local/armeabi/objs/icuuc/udata.o: In function `openCommonData':
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/udata.c:836: undefined reference to `icudt42_dat'
/Users/kyip/KyVmShared/KyAndroid/myproject/obj/local/armeabi/objs/icuuc/ustr_wcs.o: In function `_strFromWCS':
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:365: undefined reference to `wcstombs'
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:415: undefined reference to `wcstombs'
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:314: undefined reference to `wcstombs'
/Users/kyip/KyVmShared/KyAndroid/myproject/obj/local/armeabi/objs/icuuc/ustr_wcs.o: In function `_strToWCS':
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:164: undefined reference to `mbstowcs'
collect2: ld returned 1 exit status

我也尝试了unicode support in android ndk给出的建议,但没有运气。我陷入了困境:

arm-eabi-g++ -I/ky/crystax/android-ndk-r4-crystax/build/platforms/android-8/arch-arm/usr/include/ -O3 -fno-short-wchar -DU_USING_ICU_NAMESPACE=0 -DU_GNUC_UTF16_STRING=0 -fno-short-enums -nostdlib -fPIC -DU_COMMON_IMPLEMENTATION  -D_REENTRANT -I../common -I../../icu/source/common -I../../icu/source/i18n   "-DDEFAULT_ICU_PLUGINS=\"/usr/local/lib/icu\" "  -DU_COMMON_IMPLEMENTATION -DHAVE_CONFIG_H  -I/ky/crystax/android-ndk-r4-crystax/build/platforms/android-8/arch-arm/usr/include/ -O3 -fno-short-wchar -DU_USING_ICU_NAMESPACE=0 -DU_GNUC_UTF16_STRING=0 -fno-short-enums -nostdlib -fPIC -DU_COMMON_IMPLEMENTATION  -std=c++0x  -fvisibility=hidden -c   -o errorcode.ao ../../icu/source/common/errorcode.cpp
In file included from ../../icu/source/common/unicode/ptypes.h:23,
                 from ../../icu/source/common/unicode/umachine.h:52,
                 from ../../icu/source/common/unicode/utypes.h:36,
                 from ../../icu/source/common/errorcode.cpp:17:
/ky/crystax/android-ndk-r4-crystax/build/platforms/android-8/arch-arm/usr/include/sys/types.h:122: error: 'uint64_t' does not name a type
make[1]: *** [errorcode.ao] Error 1
make: *** [all-recursive] Error 2

任何帮助都将不胜感激。

4 个答案:

答案 0 :(得分:0)

这个问题似乎涉及两个文件。调用sys / types.h的icu / source / common / unicode / ptypes.h包括

#if ! U_HAVE_UINT64_T
    typedef unsigned long long uint64_t;
/* else we may not have a 64-bit type */
#endif

通过在Android中包含sys / types.h,我们涉及(接近第122/124行)

#ifdef __BSD_VISIBLE
typedef unsigned char   u_char;
typedef unsigned short  u_short;
typedef unsigned int    u_int;
typedef unsigned long   u_long;

typedef uint32_t       u_int32_t;
typedef uint16_t       u_int16_t;
typedef uint8_t        u_int8_t;
typedef uint64_t       u_int64_t;
#endif

uint64_t在分配给u_int64_t时似乎尚未声明。实际上,sys / types.h包含stdint.h,其中包含以下内容:

#if !defined __STRICT_ANSI__ || __STDC_VERSION__ >= 199901L
#  define __STDC_INT64__
#endif

typedef __int8_t      int8_t;
typedef __uint8_t     uint8_t;
typedef __int16_t     int16_t;
typedef __uint16_t    uint16_t;
typedef __int32_t     int32_t;
typedef __uint32_t    uint32_t;
#if defined(__STDC_INT64__)
typedef __int64_t     int64_t;
typedef __uint64_t    uint64_t;
#endif

未定义可能 STRICT_ANSI 。这似乎是sys / types.h中Android代码中的一个错误。如果未定义 STDC_INT64 ,则不会定义uint64_t,因此无法定义u_int64_t。也许真正的解决方案是修改sys / types.h以便它具有

#ifdef __BSD_VISIBLE
typedef unsigned char   u_char;
typedef unsigned short  u_short;
typedef unsigned int    u_int;
typedef unsigned long   u_long;

typedef uint32_t       u_int32_t;
typedef uint16_t       u_int16_t;
typedef uint8_t        u_int8_t;
$if defined(__STDC_INT64__)
typedef uint64_t       u_int64_t;
#endif
#endif

如果你解决了这个问题,那么下一个错误将出现在cstring.h:109

icu/source/common/cstring.h:109: error: 'int64_t' has not been declared

如果您在common / unicode / ptypes.h中改为#define STDC_INT64 ,它将会更进一步,但会以

结束
icu/source/common/ustrenum.cpp:118: error: must #include <typeinfo> before using typeid

此处有更多信息:http://groups.google.com/group/android-ndk/browse_thread/thread/2ec9dc289d815ba3?pli=1但没有真正的解决方案

答案 1 :(得分:0)

我也有这个问题: 未明确引用`mbstowcs'

您应该构建并链接更高版本的android api。

注意: 我试图将它与android-ndk / platforms / android-4中的库链接...我原以为4是Android的版本,但是4是Android API的版本。和Android API 4对应的Android 1.6女巫很老了在libc中真的没有mbstowcs功能

答案 2 :(得分:0)

以下是我如何解决问题的方法。它很脏但很有效。 lib已编译:

1。 file:/icu4c/common/cwchar.h

注释掉#if U_HAVE_WCHAR_H和相应的#endif,以便始终包含<wchar.h>

将以前的uprv_wcstombs定义替换为:

#define uprv_wcstombs(mbstr, wcstr, count) U_STANDARD_CPP_NAMESPACE wcs2mbs(mbstr, wcstr, count)

将以前的uprv_mbstowcs定义替换为:

#define uprv_mbstowcs(wcstr, mbstr, count) U_STANDARD_CPP_NAMESPACE mbs2wcs(wcstr, mbstr, count)

2。文件:/icu4c/common/ustr_wcs.cpp

在顶部的某个地方,在现有的包含下添加行:

#include "../wcsmbs.h"

3。创建新文件“icu4c / wcsmbs.h”

size_t mbs2wcs(wchar_t * __ restrict pwcs, const char * __ restrict s, size_t n)
{

   mbstate_t mbs;
   const char *sp;
   memset(&mbs, 0, sizeof(mbs));
   sp=s;
   return (mbsrtowcs(pwcs,&sp,n,&mbs));
}


size_t wcs2mbs(char * __restrict s, const wchar_t * __restrict pwcs, size_t n)
{
   mbstate_t mbs;
   const wchar_t *pwcsp;
   memset(&mbs,0,sizeof(mbs));
   pwcsp = pwcs;
   return (wcsrtombs(s,&pwcsp,n,&mbs));
}

希望它有所帮助。

答案 3 :(得分:0)

已经努力为作为系统一部分的ICU库提供NDK包装器:https://android-review.googlesource.com/c/153001/