Merge "Add backtrace tool" into jb-mr1-dev

    AKLOGI("i[ %s ]", charBuf);

}

#ifndef __ANDROID__

#define ASSERT(success) do { if(!success) { showStackTrace(); assert(success);};} while (0)

#define SHOW_STACK_TRACE do { showStackTrace(); } while (0)

#include <execinfo.h>

#include <stdlib.h>

static inline void showStackTrace() {

    void *callstack[128];

    int i, frames = backtrace(callstack, 128);

    char **strs = backtrace_symbols(callstack, frames);

    for (i = 0; i < frames; ++i) {

        if (i == 0) {

            AKLOGI("=== Trace ===");

            continue;

        }

        AKLOGI("%s", strs[i]);

    }

    free(strs);

}

#else

#define ASSERT(success)

#define SHOW_STACK_TRACE

#endif

#else

#define AKLOGE(fmt, ...)

#define AKLOGI(fmt, ...)

#define DUMP_RESULT(words, frequencies, maxWordCount, maxWordLength)

#define DUMP_WORD(word, length)

#define DUMP_WORD_INT(word, length)

#define ASSERT(success)

#define SHOW_STACK_TRACE

#endif

#ifdef FLAG_DO_PROFILE