Google coredumper的效果

通常coredump会产生core文件，然后通过调试core文件定位那具体地方，google coredumper也能够达到相同的效果，但会以一个更美观的文本文件存起来供调试

下载coredumper，安装十分简单

./configure && make && make install

如果编译没法通过，修改include里头文件的文件目录即可

测试程序（产生coredump）：

#include <stdio.h> //printf
#include <stdlib.h>//exit
#include <signal.h>//signal
#include <google/coredumper.h>//WriteCoreDump
void sig_func(int signo)
{
        printf(“segment fault: caught signal: %d\n”,signo);
        if( WriteCoreDump(“coredump.txt”) ==0 ) {
                printf(“success: WriteCoreDump to coredump.txt\n”);
        } else {
                printf(“failure: WriteCoreDump to coredump.txt\n”);
        }  
        exit(-1);//important, comment the line will lead to dead loop signal
}
void error1()
{
    int a = 5/0;
}

int main()
{
        signal(SIGSEGV, &sig_func);
        signal(SIGFPE,  &sig_func);
        error1();
        return 0;
}

编译： cc test_core.c –lcoredumper

运行：./a.out
segment fault: caught signal: 8
success: WriteCoreDump to coredump.txt

调试：gdb ./a.out coredump.txt

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