C基础 - GDB调式工具

Posted 2020-10-06

 

安装

brew install gdb 

 

一、单步执行和跟踪函数调用

/* main.c -- 学习gdb调试工具 */
#include <stdio.h>

int add_range(int low, int high)
{
    int i, sum;
    for (i = low; i <= high; i++)
        sum = sum + i;
    return sum;
}

int main(void)
{
    int result[100];
    result[0] = add_range(1, 10);
    result[1] = add_range(1, 100);
    printf("result[0]=%d\nresult[1]=%d\n", result[0], result[1]);
    return 0;
}

 

 

第一步：使用-g生成目标文件

gcc -g main.c -o main

 

 

?  ch02 gdb file nogood.c 

GNU gdb (GDB) 8.0.1

Copyright (C) 2017 Free Software Foundation, Inc.

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.  Type "show copying"

and "show warranty" for details.

This GDB was configured as "x86_64-apple-darwin16.7.0".

Type "show configuration" for configuration details.

For bug reporting instructions, please see:

<http://www.gnu.org/software/gdb/bugs/>.

Find the GDB manual and other documentation resources online at:

<http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".

Type "apropos word" to search for commands related to "word"...

"/usr/bin/file": not in executable format: File format not recognized

"/Users/david/Desktop/c-primer-plus-source-code/ch02/nogood.c" is not a core dump: File format not recognized

(gdb)