libpcap静态链接错误使用android的ndk工具链编译
我已经使用Git和repo从android源代码下载了外部文件夹中的libpcap。我使用了ndk (android-ndk-r5b)的工具来编译这个库，步骤如下：
./configure --prefix=path-to-android-src/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin make clean make make install
然后生成一个libpcap.a文件。
我用libpcap (sniffer.c)做了一个简单的嗅探器。当我尝试编译它时，出现了以下错误: agcc sniffer.c libpcap.a
sniffer.c:9:18: error: pcap.h: No such file or directory
sniffer.c:19: warning: 'struct pcap_pkthdr' declared inside parameter list
sniffer.c:19: warning: its scope is only this definition or declaration, which is probably not what you want
sniffer.c: In function 'processPacket':
sniffer.c:23: warning: incompatible implicit declaration of built-in function 'printf'
sniffer.c:24: error: dereferencing pointer to incomplete type
sniffer.c:26: error: dereferencing pointer to incomplete type
sniffer.c:33: error: dereferencing pointer to incomplete type
sniffer.c: In function 'main':
sniffer.c:45: error: 'pcap_t' undeclared (first use in this function)
sniffer.c:45: error: (Each undeclared identifier is reported only once
sniffer.c:45: error: for each function it appears in.)
sniffer.c:45: error: 'descr' undeclared (first use in this function)
sniffer.c:46: error: 'PCAP_ERRBUF_SIZE' undeclared (first use in this function)
sniffer.c:62: warning: incompatible implicit declaration of built-in function 'printf'
sniffer.c:66: warning: incompatible implicit declaration of built-in function 'fprintf'
sniffer.c:66: error: 'stderr' undeclared (first use in this function)
sniffer.c:72: warning: incompatible implicit declaration of built-in function 'fprintf'当我尝试提前生成对象代码时: agcc -c sniffer.o sniffer.c也出现了同样的错误。
有人能给我解释一下如何解决这个问题吗？
下面是我在bashrc文件中使用的agcc的别名：./configure --prefix=/home/petsas/projects/mobile-attacks/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/
此外，我还附加了一个文件，其中包含上述命令的输出: configure、make和make install。
(我将错误放在代码样式中，因为存在对齐错误)
提前谢谢你！
-更新--
我使用了选项-I和-L来指定包含文件和库文件，现在这些错误都消失了。
这是我的新错误日志：
agcc --static -I /home/petsas/projects/mobile-attacks/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/include -L /home/petsas/projects/mobile-attacks/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/lib -o sniffer sniffer.c libpcap.a
/home/petsas/projects/mobile-attacks/android-ndk-r5b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: libpcap.a(pcap-linux.o): Relocations in generic ELF (EM: 3)
/home/petsas/projects/mobile-attacks/android-ndk-r5b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: libpcap.a(pcap-linux.o): Relocations in generic ELF (EM: 3)
/home/petsas/projects/mobile-attacks/android-ndk-r5b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: libpcap.a(pcap-linux.o): Relocations in generic ELF (EM: 3)
libpcap.a: could not read symbols: File in wrong format
collect2: ld returned 1 exit status有什么想法吗？
回答 1
Stack Overflow用户
发布于 2011-03-30 22:07:54
标题
我无法按照上面描述的方式找到解决方案，但我通过编写Android.mdk文件和使用android NDK的ndk-build找到了解决方案。
我把libpcap目录放到android-ndk-r5b/samples中，我稍微修改了目录和目录的结构，以便看起来像samples目录中的其他目录，我在android-ndk-r5b目录中使用了ndk- Android.mdk命令：
ndk-构建-C示例/android-ndk-r5b
一切都很好！我能够生成一个libpicap.so文件，并使用以下命令将其放入手机：
in android (phone):
$ su
# mount -o,rw remount /dev/block/mtdblock4 /system/lib
in my Desktop:
$ adb push libpcap.so /system/lib/我做了一个简单的嗅探器，我编译并链接了libpcap.so，在我的HTC Hero中完美地工作了！;)
https://stackoverflow.com/questions/5452532
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