【发布时间】：2019-09-16 23:59:52
【问题描述】：
在我尝试调试的每个程序中，每次我使用断点并尝试运行任何程序 gdb 崩溃时，我都会得到相同的结果。我在不同的程序上尝试了同样的事情，它一直这样。
我将在这个简单的地方展示结果：
int main(int argc,char* argv[]){
for(int i = 0;i < 200; i++){
printf("%d\n",i);
}
}
gcc main.c -m32 -std=c99 -o test
GNU gdb (Debian 8.3-1) 8.3
Copyright (C) 2019 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-linux-gnu".
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"...
Reading symbols from test...
(No debugging symbols found in test)
(gdb) disas main
Dump of assembler code for function main:
0x00001199 <+0>: lea 0x4(%esp),%ecx
0x0000119d <+4>: and $0xfffffff0,%esp
0x000011a0 <+7>: pushl -0x4(%ecx)
0x000011a3 <+10>: push %ebp
0x000011a4 <+11>: mov %esp,%ebp
0x000011a6 <+13>: push %ebx
0x000011a7 <+14>: push %ecx
0x000011a8 <+15>: sub $0x10,%esp
0x000011ab <+18>: call 0x10a0 <__x86.get_pc_thunk.bx>
0x000011b0 <+23>: add $0x2e50,%ebx
0x000011b6 <+29>: movl $0x0,-0xc(%ebp)
0x000011bd <+36>: jmp 0x11d8 <main+63>
0x000011bf <+38>: sub $0x8,%esp
0x000011c2 <+41>: pushl -0xc(%ebp)
0x000011c5 <+44>: lea -0x1ff8(%ebx),%eax
0x000011cb <+50>: push %eax
0x000011cc <+51>: call 0x1030 <printf@plt>
0x000011d1 <+56>: add $0x10,%esp
0x000011d4 <+59>: addl $0x1,-0xc(%ebp)
0x000011d8 <+63>: cmpl $0xc7,-0xc(%ebp)
0x000011df <+70>: jle 0x11bf <main+38>
0x000011e1 <+72>: mov $0x0,%eax
0x000011e6 <+77>: lea -0x8(%ebp),%esp
0x000011e9 <+80>: pop %ecx
0x000011ea <+81>: pop %ebx
0x000011eb <+82>: pop %ebp
0x000011ec <+83>: lea -0x4(%ecx),%esp
0x000011ef <+86>: ret
End of assembler dump.
(gdb) break *0x000011ef
Breakpoint 1 at 0x11ef
(gdb) run
Starting program: /root/test
[1]+ Stopped gdb test
我尝试在另一台 linux 机器上做同样的事情，它工作正常。那么可能是什么问题呢？
更新：我找到了断点问题的临时解决方案（所以 gdb 不会崩溃），您在开始时使用命令（启动），一切都会正常工作：
GNU gdb (Debian 8.3-1) 8.3
Copyright (C) 2019 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-linux-gnu".
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"...
Reading symbols from test...
(No debugging symbols found in test)
(gdb) start
Temporary breakpoint 1 at 0x11a8
Starting program: /root/test
Temporary breakpoint 1, 0x565561a8 in main ()
(gdb) enable
(gdb) disas main
Dump of assembler code for function main:
0x56556199 <+0>: lea 0x4(%esp),%ecx
0x5655619d <+4>: and $0xfffffff0,%esp
0x565561a0 <+7>: pushl -0x4(%ecx)
0x565561a3 <+10>: push %ebp
0x565561a4 <+11>: mov %esp,%ebp
0x565561a6 <+13>: push %ebx
0x565561a7 <+14>: push %ecx
=> 0x565561a8 <+15>: sub $0x10,%esp
0x565561ab <+18>: call 0x565560a0 <__x86.get_pc_thunk.bx>
0x565561b0 <+23>: add $0x2e50,%ebx
0x565561b6 <+29>: movl $0x0,-0xc(%ebp)
0x565561bd <+36>: jmp 0x565561d8 <main+63>
0x565561bf <+38>: sub $0x8,%esp
0x565561c2 <+41>: pushl -0xc(%ebp)
0x565561c5 <+44>: lea -0x1ff8(%ebx),%eax
0x565561cb <+50>: push %eax
0x565561cc <+51>: call 0x56556030 <printf@plt>
0x565561d1 <+56>: add $0x10,%esp
0x565561d4 <+59>: addl $0x1,-0xc(%ebp)
0x565561d8 <+63>: cmpl $0xc7,-0xc(%ebp)
0x565561df <+70>: jle 0x565561bf <main+38>
0x565561e1 <+72>: mov $0x0,%eax
0x565561e6 <+77>: lea -0x8(%ebp),%esp
0x565561e9 <+80>: pop %ecx
0x565561ea <+81>: pop %ebx
0x565561eb <+82>: pop %ebp
0x565561ec <+83>: lea -0x4(%ecx),%esp
0x565561ef <+86>: ret
End of assembler dump.
(gdb) break *0x565561df
Breakpoint 2 at 0x565561df
(gdb) info break
Num Type Disp Enb Address What
2 breakpoint keep y 0x565561df <main+70>
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /root/test
Breakpoint 2, 0x565561df in main ()
(gdb) step
Single stepping until exit from function main,
which has no line number information.
0
Breakpoint 2, 0x565561df in main ()
(gdb)
Single stepping until exit from function main,
which has no line number information.
1
Breakpoint 2, 0x565561df in main ()
(gdb)
Single stepping until exit from function main,
which has no line number information.
2
Breakpoint 2, 0x565561df in main ()
(gdb)
Single stepping until exit from function main,
which has no line number information.
3
Breakpoint 2, 0x565561df in main ()
(gdb)
Single stepping until exit from function main,
which has no line number information.
4
Breakpoint 2, 0x565561df in main ()
不幸的是，这是一个临时解决方案，只是为了处理断点，它与崩溃问题无关。
【问题讨论】：
-
您是否使用 csh 作为默认 shell？可能相关：stackoverflow.com/q/10472184/72178.
-
不，我的默认 shell 是 bash
-
在运行程序之前尝试
set debug infrun 1。 GDB 将打印有关程序启动期间发生的更多信息。