android ndk 未定义对方法的引用

您好，很抱歉这篇长文章我正在尝试编译一些静态类，即 jsmn.c、json.c 和 buf.c，它们是我从下载的 jsmn json 库的一部分https://github.com/alisdair/jsmn-example/downloads https://github.com/alisdair/jsmn-example/downloads.

我正在编译两个 STATIC_LIBRARIES lib1 和 json_library.lib1 具有依赖于 json_library 的本机代码。然后我将两个库制作成一个共享库，其中包含gnustl_static 和 lib1

我的文件夹结构如下

jni/lib1/Android.mk

include $(CLEAR_VARS)
LOCAL_MODULE := json_library
LOCAL_SRC_FILES := /3rdParty/jsmn/json_library.a
LOCAL_SRC_FILES := /3rdParty/jsmn/jsmn.c /3rdParty/jsmn/buf.c /3rdParty/jsmn/log.c /3rdParty/jsmn/json.c 
LOCAL_C_INCLUDES := /3rdParty/jsmn/jsmn.h /3rdParty/jsmn/buf.h /3rdParty/jsmn/log.h /3rdParty/jsmn/json.h 
# Optional compiler flags.
LOCAL_LDLIBS   = -lz -lm
LOCAL_CFLAGS   = -Wall -pedantic -std=c99 -g
include $(BUILD_STATIC_LIBRARY)

  include $(CLEAR_VARS)
  # Module Name
  LOCAL_MODULE    := lib1
  LOCAL_STATIC_LIBRARIES := json_library
  ........
  .......
  ......
  include $(BUILD_STATIC_LIBRARY)

jni/Android.mk

# Here we give our module name
LOCAL_MODULE    := lib2
# list the static modules included here!!!
LOCAL_STATIC_LIBRARIES :=   gnustl_static  lib1 
....
include $(BUILD_SHARED_LIBRARY)

jni/应用程序.mk

APP_MODULES   :=  lib2
# Optimization for release
APP_OPTM := release
#Targets
APP_ABI := armeabi-v7a armeabi

所以在 lib1 中我有一个类，它调用 json 库中名为的方法json_tokenise

#include <string.h>
#include <stdio.h>
 #include <stdlib.h>
 #include <jsmn/jsmn.h>
#include <jsmn/json.h>
#include <jsmn/buf.h>

jsmntok_t *tokens=json_tokenise((char *)data);

typedef enum {
START,
WRAPPER,
MESSAGE,
ROUTE,
OBJECT,
ARRAY,
SKIP,
STOP
}parse_state;

我收到以下错误

undefined reference to `json_tokenise(char*)'
collect2: ld returned 1 exit status
make: *** [obj/local/armeabi-v7a/lib2.so] Error 1

**** Build Finished ****

当我查看 [obj/local/armeabi-v7a/ 内部时，我可以看到libjson_library.a liblib1.a libgnustl_static.a正在为 armabi-v7 生成，但由于错误而无法生成 lib2。

请帮助或指导我哪里出错了，我已经花了两天时间在这上面，而且我是 NDK 的新手。

你应该修复你的jni/lib1/Android.mk file:

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := json_library
LOCAL_SRC_FILES := 3rdParty/jsmn/jsmn.c 3rdParty/jsmn/buf.c 3rdParty/jsmn/log.c 3rdParty/jsmn/json.c 
LOCAL_C_INCLUDES := $(LOCAL_PATH)/3rdParty/jsmn
# Optional compiler flags.
LOCAL_LDLIBS   = -lz -lm
LOCAL_CFLAGS   = -Wall -pedantic -std=c99 -g
include $(BUILD_STATIC_LIBRARY)

如果此后仍有问题，请运行ndk-build带参数V=1在命令行上发布此构建的完整输出以及所有内容的完整内容Android.mk files.