java 如何在 Eclipse 中有效地调试用 JNI 包装的 C 代码？（安卓开发）
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How can I effectively debug C code that's wrapped with JNI in Eclipse? (Android Dev)
提问by Brian D
I've got a segfault but I have absolutely no idea how to locate it.
我有段错误，但我完全不知道如何找到它。
Tips?
尖端？
采纳答案by richq
You can get the location of the C function that caused the crash using the Android NDK Stacktrace Analyzer.
您可以使用Android NDK Stacktrace Analyzer获取导致崩溃的 C 函数的位置。
The steps are on the wiki, but basically you need to get the stack trace from logcat into a file (adb logcat > mycrash.log), then dump your library to a text file, then run the program on the two of them. Here's the shell script I use to do the lot:
这些步骤在wiki 上，但基本上您需要将 logcat 中的堆栈跟踪获取到一个文件 ( adb logcat > mycrash.log) 中，然后将您的库转储到一个文本文件中，然后在其中两个上运行该程序。这是我用来做很多事情的shell脚本：
#!/bin/sh
if test $# -lt 2 ; then
echo "Extract readable stack trace from Android logcat crash"
echo "Usage ##代码## lib.so crash.log"
exit 1
fi
of=$(mktemp)
echo "Disassemble "
~/tools/android-ndk-r5/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-objdump -S > $of
echo "Parse stack trace in "
~/bin/parse_stack.py $of
Change the paths to the Android NDK and parse_stack.py file as you need.
根据需要更改 Android NDK 和 parse_stack.py 文件的路径。
回答by Chris
How to Effectively Debug Android JNI C/C++ Code in Eclipse:
如何在 Eclipse 中有效调试 Android JNI C/C++ 代码：
Setup your project to be a mixed Java, C, and C++ project:
http://mhandroid.wordpress.com/2011/01/23/using-eclipse-for-android-cc-development/
Setup your project to enable debugging:
http://mhandroid.wordpress.com/2011/01/23/using-eclipse-for-android-cc-debugging/#more-23
将您的项目设置为混合 Java、C 和 C++ 项目：
http://mhandroid.wordpress.com/2011/01/23/using-eclipse-for-android-cc-development/
设置您的项目以启用调试：
http://mhandroid.wordpress.com/2011/01/23/using-eclipse-for-android-cc-debugging/#more-23
Note: The author of the site used Eclipse(Galileo) on Ubuntu. I found some differences when using Eclipse(Helios) on MacOS (especially with the debug setup). Once things are set up, Eclipse works very well as an IDE for JNI development.
注意：该站点的作者在 Ubuntu 上使用了 Eclipse(Galileo)。我在 MacOS 上使用 Eclipse(Helios) 时发现了一些差异（尤其是调试设置）。一旦设置好，Eclipse 就可以很好地用作 JNI 开发的 IDE。
