gdb调试

最新推荐文章于 2022-05-31 17:33:47 发布
最新推荐文章于 2022-05-31 17:33:47 发布
阅读量792 收藏
点赞数
分类专栏： 编程 shell 文章标签： gnu linux gdb
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.youkuaiyun.com/jinchengzhou/article/details/123242760
版权
  1. Ubuntu gdb 调试 过程 
    jin@ubuntu:~/jin/gdb$ gdb -v
GNU gdb (Ubuntu/Linaro 7.4-2012.02-0ubuntu2) 7.4-2012.02
Copyright (C) 2012 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".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>.

    jin@ubuntu:~/jin/gdb$ gdb -v
GNU gdb (Ubuntu/Linaro 7.4-2012.02-0ubuntu2) 7.4-2012.02
Copyright (C) 2012 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".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>.
jin@ubuntu:~/jin/gdb$ 
jin@ubuntu:~/jin/gdb$ 
jin@ubuntu:~/jin/gdb$ 
jin@ubuntu:~/jin/gdb$ gdb a.out 
GNU gdb (Ubuntu/Linaro 7.4-2012.02-0ubuntu2) 7.4-2012.02
Copyright (C) 2012 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".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/jin/jin/gdb/a.out...(no debugging symbols found)...done.
(gdb) r
Starting program: /home/jin/jin/gdb/a.out 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
123
[New Thread 0x7ffff77fb700 (LWP 11897)]
Process_pid=[11894]
This is the main process.
This is the main process.
This is the main process.
This is a pthread. 0
This is a pthread. 1
This is a pthread. 2
This is a pthread. 3
This is a pthread. 4
This is a pthread. 5
^C
Program received signal SIGINT, Interrupt.
0x00007ffff7bc6148 in pthread_join () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) i threads
  Id   Target Id         Frame 
  2    Thread 0x7ffff77fb700 (LWP 11897) "a.out" 0x00007ffff78be06d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
* 1    Thread 0x7ffff7fe6700 (LWP 11894) "a.out" 0x00007ffff7bc6148 in pthread_join () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) bt
#0  0x00007ffff7bc6148 in pthread_join () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000000000400832 in main ()
(gdb) c
Continuing.
This is a pthread. 6
This is a pthread. 7
This is a pthread. 8
This is a pthread. 9
This is a pthread. 10
This is a pthread. 11
This is a pthread. 12
This is a pthread. 13
^C
Program received signal SIGINT, Interrupt.
0x00007ffff7bc6148 in pthread_join () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) q
A debugging session is active.

	Inferior 1 [process 11894] will be killed.

Quit anyway? (y or n) y
jin@ubuntu:~/jin/gdb$ 

    signal(SIGINT, sigroutine);
printf( "Process_pid=[%d]\n", getpid() );
                                                  
void sigroutine(int unused)
{
    printf("Catch a signal SIGINT \n");
	//exit(1);
}


(gdb) r
Starting program: /home/jin/jin/gdb/a.out 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
123
[New Thread 0x7ffff77fb700 (LWP 12106)]
Process_pid=[12103]
This is a pthread. 0
This is the main process.
This is the main process.
This is the main process.
This is a pthread. 1
This is a pthread. 2
This is a pthread. 3
^C
Program received signal SIGINT, Interrupt.
0x00007ffff7bc6148 in pthread_join () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) signal SIGINT
Continuing with signal SIGINT.
Catch a signal SIGINT 
This is a pthread. 4
This is a pthread. 5
This is a pthread. 6
This is a pthread. 7
This is a pthread. 8
This is a pthread. 9
This is a pthread. 10

    jin@ubuntu:~/jin/gdb$ cat /proc/sys/kernel/core_pattern
/home/jin/jin/gdb/%t-%e-%p-%c.core
jin@ubuntu:~/jin/gdb$ 
jin@ubuntu:~/jin/gdb$ ulimit -c
10240
jin@ubuntu:~/jin/gdb$ ./a.out 
123
Process_pid=[12418]
This is the main process.
This is the main process.
This is the main process.
This is a pthread. 0
This is a pthread. 1
Segmentation fault (core dumped)
jin@ubuntu:~/jin/gdb$ 
jin@ubuntu:~/jin/gdb$ ls
1646235990-a.out-12412-10485760.core  1646236045-a.out-12418-10485760.core  a.out  test.cpp  test.cpp~
jin@ubuntu:~/jin/gdb$ rm 164623*
jin@ubuntu:~/jin/gdb$ ./a.out 
123
Process_pid=[12460]
This is the main process.
This is the main process.
This is the main process.
This is a pthread. 0
This is a pthread. 1
Segmentation fault (core dumped)
jin@ubuntu:~/jin/gdb$ cat 1646236077-a.out-12460-10485760.core 
ELF>@@8�x @ `0`@�]P���$`��$��`�
                                                                         �$p`�p&�$�`�`F�$@@���F�$  ���F�$PP�G�$���H�$���h�$ ��h�$0��h�$@@p��h�$ p����$00��Њ�$00Ѓ��$����$  �����   �����0�`�����PCORE

                                                                             �0*0�0*0¶��0@�����0����m �$�������������$@3�����+���$�CORER$@���0*0�0*0a.out./a.out 0CORE!�����d@@8	�h�$    0@
           �
��yĶ���߶���Ķ��CORE�������������@LINUX�������������PCORE

                                                                              �0*0�0*0R	@`�F�$Њ�$�Њ�$��������Њ�$-�$3��
�$+
�$CORE���%%%%%%%%%%%%%%%%�@LINUX���%%%%%%%%%%%%%%%%�ELF>0@@x@8	@@@@@@��88@8@@@$
                                                                                                                     $
                                                                                                                       ``8H @@`@`��TT@T@DDP�td�	�	@�	@LLQ�tdR�td``��/lib64/ld-linux-x86-64.so.2GNUGNU���"o�@X�q�Ns^)
L%afmzZA 4 tlibpthread.so.0_Jv_RegisterClassespthread_createpthread_join__gmon_start__libc.so.6signalputsgetpidprintfsleep__libc_start_mainGLIBC_2.2.5P ui	�ui	�````` `(`08`
H����Z�UH���5J
 �%L
 @�%J
 h������%B
 h������%:
 h������%2
 h������%*
 h������%"
 h������%
 h������%
 h�p���1�I��^H��H���PTI��@H��@H�ǒ@��������H�H�y	 H��t��H�Ð������������UH��SH��=�	 uK�0`H��	 H��(`H��H��H9�s$fDH��H��	 ��(`H��	 H9�r��s	 H�[]�fff.�H�=@ UH��t�H��]�8`��]Ð�UH��H�E�H�E��]�UH�������]�UH��H�� H�}��E��"�E��ƿ<	@�������������E��}�/u����u���UH��H���}��S	@�0�����UH��H�� H�E��j	@����H�E���4@�H��������E��}�t
�o	@������{@�����������ƿ�	@�������E���	@������E��}�����u������������H�E��H���������Ð�������H�l$�L�d$�H�-� L�%� L�l$�L�t$�L�|$�H�\$�H��8L)�A��I��H��I�������H��t1@L��L��D��A��H��H9�u�H�\H�l$L�d$L�l$ L�t$(L�|$0H��8��Ð�������������UH��SH�H� H���t�`DH���H�H���u�H�[]Ð�H��O���H��This is a pthread. %d
Create pthread error!Process_pid=[%d]
This is the main process.;����d`����u������������������
                                                          ����,,���TzRx
                                                                               �$�����FJ
P                                                                                          �?;*3$"D����A�C
 d����
F     A�C
B����GA�C
R�����A�C
������A�C
  $�h����Q��_@��
                    ��������������������P
(       @���o�@�@�@                       �@
�
�$P_�$@�$!�	���op@���o���oX@@`�"��$�1j�$@�G�$p��$�.�$1�$
�$^C
jin@ubuntu:~/jin/gdb$ 
jin@ubuntu:~/jin/gdb$ ls
1646236077-a.out-12460-10485760.core  a.out  test.cpp  test.cpp~
jin@ubuntu:~/jin/gdb$ gdb a.out 1646236077-a.out-12460-10485760.core 
GNU gdb (Ubuntu/Linaro 7.4-2012.02-0ubuntu2) 7.4-2012.02
Copyright (C) 2012 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".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/jin/jin/gdb/a.out...(no debugging symbols found)...done.
Illegal process-id: 1646236077-a.out-12460-10485760.core.
[New LWP 12460]
[New LWP 12461]

warning: Can't read pathname for load map: Input/output error.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `./a.out'.
Program terminated with signal 11, Segmentation fault.
#0  0x0000000000400724 in fun2() ()
(gdb) bt
#0  0x0000000000400724 in fun2() ()
#1  0x0000000000400732 in fun1() ()
#2  0x0000000000400830 in main ()
(gdb) i threads
  Id   Target Id         Frame 
  2    Thread 0x7f24970af700 (LWP 12461) 0x00007f2497198f2d in write () from /lib/x86_64-linux-gnu/libc.so.6
* 1    Thread 0x7f249789b700 (LWP 12460) 0x0000000000400724 in fun2() ()
(gdb) 



jin@ubuntu:~/jin/gdb$ ls 1646236077-a.out-12460-10485760.core -l
-rw------- 1 jin jin 8794112 Mar  2 07:47 1646236077-a.out-12460-10485760.core
jin@ubuntu:~/jin/gdb$ 


#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <pthread.h>

int fun2()
{
  printf("This is a fun2.\n");
  char *prt = 0;
  char *ptr = "test";
  //free(ptr);
  *prt = 0;
}

int fun1()
{
  fun2();
}

void *thread(void *arg)
{
  int i;
  for (i = 0; i < 30000; i++)
  {
    printf("This is a pthread. %d\n", i);
    sleep(1);
  }
}

void sigroutine(int unused)
{
  printf("Catch a signal SIGINT \n");
}

int main()
{
  char *prt = 0;
  printf("123\r\n");
  ///

  pthread_t id;
  int i, ret;
  ret = pthread_create(&id, NULL, thread, NULL);
  if (ret != 0)
  {
    printf("Create pthread error!\n");
    exit (1);
  }

  signal(SIGINT, sigroutine);
  printf("Process_pid=[%d]\n", getpid());

  for (i = 0; i < 3; i++)
    printf("This is the main process.\n");
  pthread_join(id, NULL);

  ///
  // while(1)
  if (0)
  {
    sleep(1);
    fun1();
    //*prt =0;
  }
}

int fun2()
{
  printf("This is a fun2.\n");
  char *prt = 0;
  char *ptr = "test";
  free(ptr);//14
  *prt = 0;
}

g++ test.cpp -lpthread -g


Starting program: /home/jin/jin/gdb/a.out 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
123
[New Thread 0x7ffff77fb700 (LWP 12785)]
Process_pid=[12782]
This is the main process.
This is the main process.
This is the main process.
This is a pthread. 0
This is a fun2.
This is a pthread. 1
*** glibc detected *** /home/jin/jin/gdb/a.out: free(): invalid pointer: 0x00000000004009bc ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x7da66)[0x7ffff7879a66]
/home/jin/jin/gdb/a.out[0x400792]
/home/jin/jin/gdb/a.out[0x4007a4]
/home/jin/jin/gdb/a.out[0x4008a2]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7ffff781d7ed]
/home/jin/jin/gdb/a.out[0x4006a9]
======= Memory map: ========
00400000-00401000 r-xp 00000000 08:01 4200174                            /home/jin/jin/gdb/a.out
00600000-00601000 r--p 00000000 08:01 4200174                            /home/jin/jin/gdb/a.out
00601000-00602000 rw-p 00001000 08:01 4200174                            /home/jin/jin/gdb/a.out
00602000-00623000 rw-p 00000000 00:00 0                                  [heap]
7ffff6dd3000-7ffff6de8000 r-xp 00000000 08:01 659004                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffff6de8000-7ffff6fe7000 ---p 00015000 08:01 659004                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffff6fe7000-7ffff6fe8000 r--p 00014000 08:01 659004                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffff6fe8000-7ffff6fe9000 rw-p 00015000 08:01 659004                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffff6ffa000-7ffff6ffb000 rw-p 00000000 00:00 0 
7ffff6ffb000-7ffff6ffc000 ---p 00000000 00:00 0 
7ffff6ffc000-7ffff77fc000 rw-p 00000000 00:00 0 
7ffff77fc000-7ffff79b3000 r-xp 00000000 08:01 664893                     /lib/x86_64-linux-gnu/libc-2.15.so
7ffff79b3000-7ffff7bb2000 ---p 001b7000 08:01 664893                     /lib/x86_64-linux-gnu/libc-2.15.so
7ffff7bb2000-7ffff7bb6000 r--p 001b6000 08:01 664893                     /lib/x86_64-linux-gnu/libc-2.15.so
7ffff7bb6000-7ffff7bb8000 rw-p 001ba000 08:01 664893                     /lib/x86_64-linux-gnu/libc-2.15.so
7ffff7bb8000-7ffff7bbd000 rw-p 00000000 00:00 0 
7ffff7bbd000-7ffff7bd5000 r-xp 00000000 08:01 664899                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffff7bd5000-7ffff7dd4000 ---p 00018000 08:01 664899                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffff7dd4000-7ffff7dd5000 r--p 00017000 08:01 664899                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffff7dd5000-7ffff7dd6000 rw-p 00018000 08:01 664899                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffff7dd6000-7ffff7dda000 rw-p 00000000 00:00 0 
7ffff7dda000-7ffff7dfc000 r-xp 00000000 08:01 664901                     /lib/x86_64-linux-gnu/ld-2.15.so
7ffff7fe5000-7ffff7fe8000 rw-p 00000000 00:00 0 
7ffff7ff8000-7ffff7ffb000 rw-p 00000000 00:00 0 
7ffff7ffb000-7ffff7ffc000 r-xp 00000000 00:00 0                          [vdso]
7ffff7ffc000-7ffff7ffd000 r--p 00022000 08:01 664901                     /lib/x86_64-linux-gnu/ld-2.15.so
7ffff7ffd000-7ffff7fff000 rw-p 00023000 08:01 664901                     /lib/x86_64-linux-gnu/ld-2.15.so
7ffffffde000-7ffffffff000 rw-p 00000000 00:00 0                          [stack]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]

Program received signal SIGABRT, Aborted.
0x00007ffff7832035 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) where
#0  0x00007ffff7832035 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff783579b in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff786f22e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff7879a66 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000400792 in fun2 () at test.cpp:14
#5  0x00000000004007a4 in fun1 () at test.cpp:20
#6  0x00000000004008a2 in main () at test.cpp:62
(gdb) bt
#0  0x00007ffff7832035 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff783579b in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff786f22e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff7879a66 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000400792 in fun2 () at test.cpp:14
#5  0x00000000004007a4 in fun1 () at test.cpp:20
#6  0x00000000004008a2 in main () at test.cpp:62
(gdb) f 4
#4  0x0000000000400792 in fun2 () at test.cpp:14
14	  free(ptr);
(gdb) disassemble 
Dump of assembler code for function fun2():
   0x0000000000400764 <+0>:	push   %rbp
   0x0000000000400765 <+1>:	mov    %rsp,%rbp
   0x0000000000400768 <+4>:	sub    $0x10,%rsp
   0x000000000040076c <+8>:	mov    $0x4009ac,%edi
   0x0000000000400771 <+13>:	callq  0x400610 <puts@plt>
   0x0000000000400776 <+18>:	movq   $0x0,-0x10(%rbp)
   0x000000000040077e <+26>:	movq   $0x4009bc,-0x8(%rbp)
   0x0000000000400786 <+34>:	mov    -0x8(%rbp),%rax
   0x000000000040078a <+38>:	mov    %rax,%rdi
   0x000000000040078d <+41>:	callq  0x4005f0 <free@plt>
=> 0x0000000000400792 <+46>:	mov    -0x10(%rbp),%rax
   0x0000000000400796 <+50>:	movb   $0x0,(%rax)
   0x0000000000400799 <+53>:	leaveq 
   0x000000000040079a <+54>:	retq   
End of assembler dump.
(gdb) backtrace
#0  0x00007ffff7832035 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff783579b in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff786f22e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff7879a66 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000400792 in fun2 () at test.cpp:14
#5  0x00000000004007a4 in fun1 () at test.cpp:20
#6  0x00000000004008a2 in main () at test.cpp:62
(gdb) frame 4
#4  0x0000000000400792 in fun2 () at test.cpp:14
14	  free(ptr);
(gdb) 
g++ test.cpp -lpthread

7ffff7ffd000-7ffff7fff000 rw-p 00023000 08:01 664901                     /lib/x86_64-linux-gnu/ld-2.15.so
7ffffffde000-7ffffffff000 rw-p 00000000 00:00 0                          [stack]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]

Program received signal SIGABRT, Aborted.
0x00007ffff7832035 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007ffff7832035 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff783579b in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff786f22e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff7879a66 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000400792 in fun2() ()
#5  0x00000000004007a4 in fun1() ()
#6  0x00000000004008a2 in main ()
(gdb) f 4
#4  0x0000000000400792 in fun2() ()
(gdb) 


int fun2()
{
  printf("This is a fun2.\n");
  char *prt = 0;
  char *ptr = "test";
  //free(ptr);
  *prt = 0;//15
}

g++ test.cpp -lpthread -g

(gdb) bt
#0  0x000000000040073a in fun2 () at test.cpp:15
#1  0x0000000000400748 in fun1 () at test.cpp:20
#2  0x0000000000400846 in main () at test.cpp:62
(gdb) f 0
#0  0x000000000040073a in fun2 () at test.cpp:15
15	  *prt = 0;
(gdb) 

//

g++ test.cpp -lpthread -g1
g++ test.cpp -lpthread -g0

(gdb) f 0
#0  0x000000000040073a in fun2 ()
(gdb) 

//

g++ test.cpp -lpthread -g2
(gdb) f 0
#0  0x000000000040073a in fun2 () at test.cpp:15
15	  *prt = 0;


 g++ test.cpp -lpthread -g1

$ gdb a.exe
GNU gdb (GDB) (Cygwin 10.2-1) 10.2
Copyright (C) 2021 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-pc-cygwin".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://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 a.exe...
(gdb) r
Starting program: /cygdrive/f/jin/gdb/a.exe
[New Thread 36004.0x5ccc]
[New Thread 36004.0x2d7c]
[New Thread 36004.0x8f5c]
123
[New Thread 36004.0x6644]
This is a pthread. 0
Process_pid=[982]
This is the main process.
This is the main process.
This is the main process.
This is a pthread. 1
This is a fun2.

Thread 1 "a" received signal SIGSEGV, Segmentation fault.
0x00000001004010ae in fun2 () at test.cpp:15
15        *prt = 0;
(gdb)

gdb调试coredump(使用篇)_瞌睡的洋葱的博客-优快云博客_gdb调试core文件

vscode调试C/C++程序时报错：Program received signal SIGINT,Interrupt.0x...... in epoll_wait
崔杰城的博客
01-18 2195
使用vscode调试C/C++程序时报错：“Program received signal SIGINT,Interrupt.0x...... in epoll_wait”。然后程序退出了。但是如果不调试，只是运行程序则不会退出。
gdb调试core文件
qq_43676531的博客
04-26 1120
1）编辑core文件大小，这里让它不受限制 ulimit -c unlimited 2）修改core文件生成格式 cat /proc/sys/kernel/core_pattern 当我准备编辑core_pattern文件，发现没有权限 于是，我sudo chmod 775 core_pattern ，发现不允许。于是探究为什么？ https://unix.stackexchange.com/questions/343275/why-is-editing-core-pattern-restricted 这
in ?? () from /usr/lib64/libstdc++.so.6 linuxC++string 程序异常崩溃
进击的小猿
08-27 1305
今天跨平台移植代码完成以后，测试环境跑服务发现windows下正常，linux程序出现崩溃报段错误。 信息如下in ?? () from /usr/lib64/libstdc++.so.6。 查看了下代码发现定义的结构体内部初始化用了memset(this, 0 , sizeof(struct)), 其实这个错误主要原因就是这里 “不要对含有字符串的结构体使用memset”。 ...
一种Linux中快速定位段错误的方法
Biao
01-02 6789
在做嵌入式Linux开发的时候，程序很容易出现段错误。段错误一般是内存操作指针出错或是内存溢出等问题，有的时候系统会有一点错误提示，但有的时候就直接提示个Segmentation fault (core dumped) 。如果程序是单线程，那很好处理，编译的时候添加参数-g ,直接使用gdb 单步调试就可以直接定位到问题点在哪了。但是对于多线程，情况就不一样了。多线程进行单步调试不好处理，并且时
错误及原因推测：sysdeps/x86_64/multiarch/strstr-sse2-unaligned.S: 没有那个文件或目录
柳鲲鹏
02-14 5918
　　早上碰到这个一个错误： [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `./gh_manager thread false 1'. Program te...
用GDB调试程序(整理有书签).pdf
01-07
陈浩的《用GDB调试程序》和守望的个人博客的《GDB调试指南》这两份资料，提供了丰富的实践案例和详细的操作步骤，帮助读者从基础到进阶掌握GDB的使用技巧。通过阅读这些教程，你可以了解如何有效地使用GDB解决实际...
STM32 GDB调试手册
04-02
STM32 GDB 调试手册 本手册详细介绍了如何使用 GDB 调试 STM32 微控制器，旨在帮助开发者快速掌握 GDB 调试工具的使用方法，以便更好地 debug STM32 项目。 标题解释 STM32 GDB 调试手册是 STM 官方提供的调试指南...
GDB调试手册(中文版)
01-07
GDB调试手册是一份非常适合初学者的中文资源，它详尽地介绍了如何使用GDB这一强大的开源调试工具。GDB，全称GNU调试器，是Linux和其他类Unix系统下用于调试C、C++、Objective-C、Fortran等语言编写的程序的工具。...
gdb调试 rk可运行程序
07-07
标题"**gdb调试 RK可运行程序**"指出了我们将在AArch64架构上使用GDB来调试针对Rockchip处理器设计的程序。这通常涉及到嵌入式设备或高性能计算平台，因为Rockchip芯片常见于这些领域。在AArch64架构下，GDB的使用...
RISCV GDB调试指南，介绍GDB指令
11-08
RISC-V GDB调试指南是一个由SHAKTI Development Team @ IIT Madras开发的教程，旨在帮助用户理解和掌握如何使用GDB（GNU调试器）来调试RISC-V架构的程序。GDB是一款强大的源代码级调试器，支持多种处理器架构，包括...
linux gdb 忽略信号,gdb 7.0,信号sigcont不中断pause()调用
weixin_39898854的博客
05-14 558
这个pause()除非调用信号处理程序,否则函数不会返回(请参见specification以及man page)要使它在程序接收SIGCont后返回,必须安装SIGCont的处理程序。请尝试使用以下示例查看:#include #include #include #include volatile int caught_signal = 0;void handler(int sig){caught_...
gdb中的信号（signal）相关调试技巧
starshift的专栏
04-26 2118
 一篇不错的帖子，讲的是gdb中的信号（signal）相关调试技巧转自Magic C++论坛http://www.magicunix.com/index_ch.htmlhttp://www.magicunix.com/cgi-bin1/forum_cn/ultimatebb.cgi?ubb=get_topic&f=1&t=000060#000003引用:----------------------
linux必先利其器篇之--GDB详解
老五的作坊
07-03 1532
gdb调试完整示例（教程）：ncurses 我对在网上找到显示命令而不显示其输出的“ gdb示例”感到有些沮丧。 gdb是GNU调试器，Linux上的标准调试器。在观看《给我15分钟》链接: link.时，我被提醒缺乏示例输出，我将改变Greg Law在CppCon 2015上对GDB演讲的看法，所幸其中包括输出！ 15分钟是值得的。 这也启发了我分享一个完整的gdb调试示例，其中包括输出和涉及的每个步骤，包括死胡同。这不是一个特别有趣或陌生的问题，它只是例行的gdb调试会话。但是它涵盖了基础知识，并且可以
gdb不停收到sigtrap信号
热门推荐
手边笔记
03-20 3万+
在用gdb调试程序的时候出现这样一种错误： Program received signal SIGTRAP, Trace/breakpoint trap. 在网上查到解决方案了，在这mark一下，以后有时间好好研究。 找到解决问题的办法了 在kernel mode改写了watchpoint的值以后，cpu把eflags的TF位置1了，照理说gdb应该清0这一位，但由于未知原因，gdb没清0该
linux捕捉信号sigint失败,linux信号处理
weixin_39852276的博客
05-14 805
1. 信号概念信号是进程在运行过程中，由自身产生或由进程外部发过来的消息(事件)。信号是硬件中断的软件模拟(软中断)。每个信号用一个整型常量宏表示，以SIG开头，比如SIGCHLD、SIGINT等，它们在系统头文件中定义,也可以通过在shell下键入kill –l查看信号列表，或者键入man 7 signal查看更详细的说明。信号的生成来自内核，让内核生成信号的请求来自3个地方：l...
如何优雅的杀死linux进程?
qq_42465440的博客
05-31 1414
如何优雅的杀死linux进程? 1.kill killall killall5 以及自编译kill程序
php进程吃满,php 吃cpu进程跟踪
weixin_28941265的博客
03-21 371
Initial frame selected; you cannot go up.(gdb) cContinuing.^CProgram received signal SIGINT, Interrupt.0x00007f339b38a4d3 in __select_nocancel () from/lib64/libc.so.6(gdb) bt#0 0x00007f339b38a4d3 in ...
Linux调试神器 -- gdb
思緒凌亂
05-10 6756
一：起因 （1）也许我们非常熟悉Windows下的VC6.0 和 CodeBlocks的调试工具 —— 界面化的调试，但是你是否想过你的每一个按键或者快捷键的背后指令是什么，让我们一起走进Linux的gcc动态调试工具GDB （2）程序调试无非就是：debug（gcc -g -o target source）;设置断点（b n）;观察变脸（info locals）;观察特定值（print ex
GDB调试
最新发布
03-14
### GDB调试基础 GDB 是 GNU 调试器 (GNU Debugger)，用于调试 C 和 C++ 程序。它允许开发者分析崩溃原因并逐步跟踪程序运行过程中的状态变化。 #### 编译带有调试信息的程序 为了能够使用 GDB 进行有效的调试，...
评论
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付：10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明：

1.余额是钱包充值的虚拟货币，按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载，可以购买VIP、付费专栏及课程。

余额充值