Any simple way to log in Android NDK code?

Question

I\'m looking for a way to easily debug C code in an Android NDK application using Eclipse. I\'ve read ways to debug the app using gdb or something similar but what I want i

Answer 1

No one has posted info about different log levels so far. The answer is an attempt to make the logging "picture" full.

#include 

#define TAG "MY_TAG"

#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR,    TAG, __VA_ARGS__)
#define LOGW(...) __android_log_print(ANDROID_LOG_WARN,     TAG, __VA_ARGS__)
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO,     TAG, __VA_ARGS__)
#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG,    TAG, __VA_ARGS__)

Usage:

char err[] = "wrong";
LOGE("Something went %s", err);

Link Android log library as below.

Android.mk:

LOCAL_LDLIBS := -llog

CMakeLists.txt:

find_library( log-lib log )
target_link_libraries( ${log-lib} )

Further reading: Logging