Ubuntu下gdb遠程調試--warning: Could not load vsyscall page because no executable was specified解決方案
1. 首先安裝gdbserver
apt-get install gdbserver
2. 編譯-g 程序
gcc -g test_gdb.c -o test_gdb
源碼如下：
#include "Util.h"
void p1()
{
int j = 0;
char *p;
*p = '5';
printf("%p %c",p,*p);
do
{
j++;
}while(j < 10);
}
void p2()
{
int j = 0;
while(j < 20)
{
j = j + j*j;
}
}
int main(int argc,char **argv)
{
CreateGerneralThread(p1);
CreateGerneralThread(p2);
while(1)
{
sleep(1);
}
return 0;
}
3. 在server端執行下面語句：
gdbserver 192.168.110.138:9002 ./test_gdb
會出現下面這句話
tiger@ubuntu:/mnt/hgfs/e/Lessons/MyExercise/UtilLibs/THREAD$ gdbserver 192.168.115.250:9002 ./test_gdb
Process ./test_gdb created; pid = 23562
Listening on port 9002
在client端執行下面幾句話：
1. gdb
出現下面這些東西：
[root@localhost ~]# gdb
GNU gdb (GDB) Fedora (7.3.50.20110722-9.fc16)
Copyright (C) 2011 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-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) target remote 192.168.115.250:9001
Remote debugging using 192.168.115.250:9001
warning: Could not load vsyscall page because no executable was specified
try using the "file" command first.
0xb7fdf1d0 in ?? ()
2. 執行：
target remote:192.168.115.250:9002
3. 執行:
symbol-file remote:192.168.115.250:9002
4. 可以調用類似continue , break 等命令了
