gdb – Records And Memorys

以这个程序为例

#include <iostream>
#include <mysql/mysql.h>
#include <stdio.h>
using namespace std;
#define SERVER "localhost"
#define USER "root"
#define PASSWORD "Piercing77#"
#define DATABASE "shfuture"

int main()
{
MYSQL *connect;
connect=mysql_init(NULL);
if (!connect)
{
cout<<"MySQL Initialization failed";
return 1;
}
connect=mysql_real_connect(connect, HOST, USER, PASSWORD ,
DATABASE ,0,NULL,0);
if (connect)
{
cout<<"connection Succeeded\n";
}
else
{
cout<<"connection failed\n";
}

#include <iostream>

#include <mysql/mysql.h>

#include <stdio.h>

using namespace std;

#define SERVER "localhost"

#define USER "root"

#define PASSWORD "Piercing77#"

#define DATABASE "shfuture"

int main()

{

MYSQL *connect;

connect=mysql_init(NULL);

if (!connect)

{

cout<<"MySQL Initialization failed";

return 1;

}

connect=mysql_real_connect(connect, HOST, USER, PASSWORD ,

DATABASE ,0,NULL,0);

if (connect)

{

cout<<"connection Succeeded\n";

}

else

{

cout<<"connection failed\n";

}

编译，注意要带 -g , 因为是c++ ，所以用 g++, c程序用 gcc

g++ -g  -o connAndQuery  connAndQuery.c $(mysql_config --libs)

1	g++ -g -o connAndQuery connAndQuery.c $(mysql_config --libs)

启动gdb

gdb ./connAndQuery

1	gdb ./connAndQuery

流程控制

break line number : 在某行下断点 ,centos 显示行号 ctrl + c

run 执行

next 执行一步

c : 执行到完

break

gdb 带参数执行：

gdb --args executablename arg1 arg2 arg3

1	gdb --args executablename arg1 arg2 arg3

来源： https://stackoverflow.com/questions/6121094/how-do-i-run-a-program-with-commandline-arguments-using-gdb-within-a-bash-script

参考文章

http://www.math.bas.bg/~nkirov/2005/netb151/debugging-with-gdb.html

http://kirste.userpage.fu-berlin.de/chemnet/use/info/gdb/gdb_6.html

Category: gdb

how to use gdb on centos machine