【发布时间】：2016-01-09 15:24:18
【问题描述】：
我正在编写一个我希望使用 ndk 在 android 中运行的 C 代码。我在代码中有 glibc 库，据我所知很难直接移植。因此，我尝试从 github 的仿生存储库中改用 libc。我在构建它时遇到了许多错误。
谁能解释如何在逐步过程中包含 libc（或指导我找到一些来源）。我进行了很多搜索，但无法在任何地方找到教程。
这些是我得到的错误：
In file included from jni/libc/private/ScopedPthreadMutexLocker.h:22:0,
from jni/libc/bionic/malloc_debug_common.cpp:47:
jni/libc/private/bionic_macros.h:27:31: warning: defaulted and deleted functions only available with -std=c++11 or -std=gnu++11 [enabled by default]
TypeName(const TypeName&) = delete; \
^
jni/libc/private/ScopedPthreadMutexLocker.h:37:3: note: in expansion of macro 'DISALLOW_COPY_AND_ASSIGN'
DISALLOW_COPY_AND_ASSIGN(ScopedPthreadMutexLocker);
^
jni/libc/private/bionic_macros.h:28:37: warning: defaulted and deleted functions only available with -std=c++11 or -std=gnu++11 [enabled by default]
void operator=(const TypeName&) = delete
^
jni/libc/private/ScopedPthreadMutexLocker.h:37:3: note: in expansion of macro 'DISALLOW_COPY_AND_ASSIGN'
DISALLOW_COPY_AND_ASSIGN(ScopedPthreadMutexLocker);
^
In file included from jni/libc/bionic/jemalloc.h:20:0,
from jni/libc/bionic/malloc_debug_common.cpp:50:
jni/libc/jemalloc/jemalloc.h:108:36: error: declaration of C function 'size_t malloc_usable_size(void*)' conflicts with
# define JEMALLOC_CXX_THROW throw()
^
jni/libc/jemalloc/jemalloc.h:231:43: note: in expansion of macro 'JEMALLOC_CXX_THROW'
JEMALLOC_USABLE_SIZE_CONST void *ptr) JEMALLOC_CXX_THROW;
^
In file included from /home/yogi/android-ndk/platforms/android-21/arch-arm/usr/include/string.h:33:0,
from /home/yogi/android-ndk/platforms/android-21/arch-arm/usr/include/signal.h:35,
from /home/yogi/android-ndk/platforms/android-21/arch-arm/usr/include/pthread.h:33,
from jni/libc/bionic/malloc_debug_common.h:36,
from jni/libc/bionic/malloc_debug_common.cpp:40:
/home/yogi/android-ndk/platforms/android-21/arch-arm/usr/include/malloc.h:36:15: error: previous declaration 'size_t malloc_usable_size(const void*)' here
extern size_t malloc_usable_size(const void* p);
^
jni/libc/bionic/malloc_debug_common.cpp:51:27: error: 'je_calloc' was not declared in this scope
#define Malloc(function) je_ ## function
^
jni/libc/bionic/malloc_debug_common.cpp:67:3: note: in expansion of macro 'Malloc'
Malloc(calloc),
^
jni/libc/bionic/malloc_debug_common.cpp:51:27: error: 'je_free' was not declared in this scope
#define Malloc(function) je_ ## function
^
jni/libc/bionic/malloc_debug_common.cpp:68:3: note: in expansion of macro 'Malloc'
Malloc(free),
^
jni/libc/bionic/malloc_debug_common.cpp:51:27: error: 'je_malloc' was not declared in this scope
#define Malloc(function) je_ ## function
^
jni/libc/bionic/malloc_debug_common.cpp:70:3: note: in expansion of macro 'Malloc'
Malloc(malloc),
^
jni/libc/bionic/malloc_debug_common.cpp:51:27: error: 'je_malloc_usable_size' was not declared in this scope
#define Malloc(function) je_ ## function
^
jni/libc/bionic/malloc_debug_common.cpp:71:3: note: in expansion of macro 'Malloc'
Malloc(malloc_usable_size),
^
jni/libc/bionic/malloc_debug_common.cpp:51:27: error: 'je_posix_memalign' was not declared in this scope
#define Malloc(function) je_ ## function
^
jni/libc/bionic/malloc_debug_common.cpp:73:3: note: in expansion of macro 'Malloc'
Malloc(posix_memalign),
^
jni/libc/bionic/malloc_debug_common.cpp:51:27: error: 'je_realloc' was not declared in this scope
#define Malloc(function) je_ ## function
^
jni/libc/bionic/malloc_debug_common.cpp:77:3: note: in expansion of macro 'Malloc'
Malloc(realloc),
^
jni/libc/bionic/malloc_debug_common.cpp:51:27: error: 'je_valloc' was not declared in this scope
#define Malloc(function) je_ ## function
^
jni/libc/bionic/malloc_debug_common.cpp:79:3: note: in expansion of macro 'Malloc'
Malloc(valloc),
^
jni/libc/bionic/malloc_debug_common.cpp: In function 'void get_malloc_leak_info(uint8_t**, size_t*, size_t*, size_t*, size_t*)':
jni/libc/bionic/malloc_debug_common.cpp:191:96: error: 'je_malloc' was not declared in this scope
HashEntry** list = static_cast<HashEntry**>(Malloc(malloc)(sizeof(void*) * g_hash_table.count));
^
jni/libc/bionic/malloc_debug_common.cpp:214:22: error: 'je_free' was not declared in this scope
Malloc(free)(list);
^
jni/libc/bionic/malloc_debug_common.cpp:236:20: error: 'je_free' was not declared in this scope
Malloc(free)(list);
^
jni/libc/bionic/malloc_debug_common.cpp: In function 'void free_malloc_leak_info(uint8_t*)':
jni/libc/bionic/malloc_debug_common.cpp:240:20: error: 'je_free' was not declared in this scope
Malloc(free)(info);
^
jni/libc/bionic/malloc_debug_common.cpp: In function 'size_t malloc_usable_size(const void*)':
jni/libc/bionic/malloc_debug_common.cpp:262:53: error: declaration of C function 'size_t malloc_usable_size(const void*)' conflicts with
extern "C" size_t malloc_usable_size(const void* mem) {
^
In file included from jni/libc/bionic/jemalloc.h:20:0,
from jni/libc/bionic/malloc_debug_common.cpp:50:
jni/libc/jemalloc/jemalloc.h:70:33: error: previous declaration 'size_t malloc_usable_size(void*)' here
# define je_malloc_usable_size malloc_usable_size
^
jni/libc/jemalloc/jemalloc.h:230:41: note: in expansion of macro 'je_malloc_usable_size'
JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW je_malloc_usable_size(
^
make: *** [obj/local/armeabi-v7a/objs/c/bionic/malloc_debug_common.o] Error 1
如何解决？ 谢谢！
【问题讨论】：
-
什么样的错误？
-
@18446744073709551615：编辑了问题。请看一下
-
其中一些是警告；他们建议您将开关
-std=gnu++11添加到构建参数中。至于 je_* 的东西，你还没有发布最有趣的错误消息，看起来代码试图定义它，但有些东西不起作用。那是什么Error 1？ -
@18446744073709551615：对于 je_* 的东西，它与
jemalloc.h标题中的extern C语句中显示的 [语法错误] (stackoverflow.com/questions/33078953/…) 有什么关系吗？我不知道错误 1。那里没有打印任何其他内容。
标签： android-ndk glibc libc bionic