打印backtrace

//Kernel hacking -> Kernel debugging
//Kernel hacking -> Verbose kernel error messages
dump_stack();

//First add LOCAL_SHARED_LIBRARIES += libcorkscrew in Android.mk

void ()
{
    int i;
    char line[1024];
    backtrace_frame_t frames[256];
    ssize_t count = unwind_backtrace(frames, 2, sizeof(frames));
    backtrace_symbol_t symbols[count];
    get_backtrace_symbols(frames, count, symbols);
    for(i = 0; i < count; i++){
        memset(line, 0, 1024);
        format_backtrace_line(i, frames + i, symbols +i, line, 1024);
        ALOGE(" #%d %sn", i,  line); /* use your logging here */
    }
    free_backtrace_symbols(symbols, count);
}

#include <execinfo.h>
#include <stdio.h>
#include <stdlib.h>

void PrintTrace(int u8TraceSize)
{
        void *btArray[u8TraceSize];
        size_t btSize;
        char **strings;
        size_t i;
        btSize = backtrace(btArray, u8TraceSize);
        strings = backtrace_symbols(btArray, btSize);
        printf("