Gdb 日志记录不显示到屏幕的方法(gdb13最新版)

Category： Debug

写在前面

gdb 的更新好快啊…

之前的选项都有改动了, 比如 logging..

需要屏幕重定向不能简单设置:

set logging on
set logging redirect on

了, 而是要多开一个配置, 踩坑了

方法

在此之前先看一下我的 gdbinit 配置:

set debuginfod enabled off
set pagination off

分别用于设置自动下载 Debug 信息和禁止分页(否则显示完一页之后就结束了)

步骤

[arch@archlinux gdb_test]$ gdb /bin/ls
GNU gdb (GDB) 13.2
Copyright (C) 2023 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-linux-gnu".
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 /bin/ls...
(No debugging symbols found in /bin/ls)
(gdb) b *0x555555559fa0
Breakpoint 1 at 0x555555559fa0
(gdb) set logging enabled on
Copying output to gdb.txt.
Copying debug output to gdb.txt.
(gdb) set logging redirect on
warning: Currently logging to gdb.txt.  Turn the logging off and on to make the new setting effective.
(gdb) set logging debugredirect on
warning: Currently logging to gdb.txt.  Turn the logging off and on to make the new setting effective.
(gdb) set logging enabled off
Done logging to gdb.txt.
(gdb) set logging enabled on
Redirecting output to gdb.txt.
Redirecting debug output to gdb.txt.
(gdb) r
(gdb) display /i $pc
(gdb) while 1
 >si
 >end