使用gdb編譯除錯mysql
使用gdb編譯除錯mysql
首先下載一個版本比較低的mysql，比如5.1.66等
[root@mysqlsource mysql]# ll
total 144240
drwxrwxr-x. 33 mysql mysql 4096 Aug 21 14:39 mysql-5.1.66
-rw-r--r--. 1 root root 24771341 Aug 21 11:00 mysql-5.1.66.tar.gz
drwxrwxrwx. 32 7155 wheel 4096 Aug 21 14:46 mysql-5.1.73
-rw-r--r--. 1 root root 24023347 Aug 21 11:00 mysql-5.1.73.tar.gz
-rw-r--r--. 1 root root 24258297 Aug 21 11:00 mysql-5.5.8.tar.gz
-rw-r--r--. 1 root root 33115516 Aug 21 11:01 mysql-5.6.22.tar.gz
-rw-r--r--. 1 root root 41514167 Aug 21 11:00 mysql-5.6.26.zip
[root@mysqlsource mysql]#
解壓一下：
tar -xvf mysql-5.1.66.tar.gz
cd mysql-5.1.66
執行編譯：
[root@mysqlsource mysql-5.1.66]# ./configure --with-debug
報錯1：
編譯MySQL的過程中提示：
/bin/rm: cannot remove `libtoolt': No such file or directory
解決：
1、確認libtool是否已經安裝，如果沒有安裝的話，則先安裝libtool
# yum -y install libtool
2、分別執行以下三條命令：
# autoreconf --force --install
# libtoolize --automake --force
# automake --force --add-missing
再重新編譯安裝，問題解決！
或者
直接開啟 configure，把 $RM "$cfgfile" 那行刪除掉，重新再執行 ./configure
報錯2：
執行make時報錯
[root@mysqlsource mysql-5.1.66]# make
cc1: warnings being treated as errors
terminal.c: In function ‘terminal_set’:
terminal.c:911: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:912: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:914: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:915: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:917: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:918: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:920: error: passing argument 1 of ‘tgetnum’ discards qualifiers from pointer target type
/usr/include/term.h:784: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:921: error: passing argument 1 of ‘tgetnum’ discards qualifiers from pointer target type
/usr/include/term.h:784: note: expected ‘char *’ but argument is of type ‘const char *’
make[2]: *** [terminal.o] Error 1
make[2]: Leaving directory `/home/mysql/mysql-5.1.73/cmd-line-utils/libedit'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/mysql/mysql-5.1.73/cmd-line-utils'
make: *** [all-recursive] Error 1
[root@mysqlsource mysql-5.1.73]#
編譯使用另外的命令，則不報錯：
[root@mysqlsource mysql-5.1.66]# ./configure --with-debug --enable-mysql-maintainer-mode=no
*****************************************************************************************
chown -R mysql:mysql /home/mysql
./configure --prefix=/home/mysql/mysql-5.1.73/ddmysql --localstatedir=/home/mysql/mysql-5.1.73/ddmysql/data --with-debug --enable-mysql-maintainer-mode=no
bin/mysql_install_db --basedir=/home/mysql/mysql-5.1.73/ddmysql --datadir=/home/mysql/mysql-5.1.73/ddmysql/data --user=mysql
--basedir=/home/mysql/mysql-5.1.73/ddmysql/ --datadir=/home/mysql/mysql-5.1.73/ddmysql/data/ --socket=/tmp/mysql.sock --user=mysql
*****************************************************************************************
[mysql@mysqlsource bin]$ ps -ef | grep mysql
root 1431 1417 0 16:46 ? 00:00:00 [mysqld] <defunct>
mysql 1992 2757 0 16:50 pts/1 00:00:00 /home/mysql/mysql-5.1.73/sql/mysqld --basedir=/home/mysql/mysql-5.1.73/ddmysql/ --datadir=/home/mysql/mysql-5.1.73/ddmysql/data/ --socket=/tmp/mysql.sock
mysql 2029 25296 1 16:52 pts/3 00:00:00 ps -ef
mysql 2031 25296 0 16:52 pts/3 00:00:00 grep mysql
root 2037 1 0 Aug19 ? 00:05:25 /usr/bin/Xvnc :1 -desktop mysqlsource:1 (root) -auth /root/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /root/.vnc/passwd -rfbport 5901 -fp catalogue:/etc/X11/fontpath.d -pn
root 25295 7364 0 16:33 pts/3 00:00:00 su - mysql
mysql 25296 25295 0 16:33 pts/3 00:00:00 -bash
[mysql@mysqlsource bin]$ gdb
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-60.el6)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later < /> 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:
< /> (gdb) attach 1992 //關聯程式
Attaching to process 1992
Reading symbols from /home/mysql/mysql-5.1.73/sql/mysqld...done.
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done.
[New LWP 1998]
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libcrypt.so.1
Reading symbols from /lib64/libnsl.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnsl.so.1
Reading symbols from /usr/lib64/libstdc++.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libstdc++.so.6
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /lib64/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libgcc_s.so.1
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libfreebl3.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libfreebl3.so
Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnss_files.so.2
0x0000003b39ae14f3 in select () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.107.el6.x86_64 libgcc-4.4.7-3.el6.x86_64 libstdc++-4.4.7-3.el6.x86_64 nss-softokn-freebl-3.12.9-11.el6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) b mysqld_show_create //設定斷點
Breakpoint 1 at 0x6a45e8: file sql_show.cc, line 712.
(gdb) c //繼續
Continuing.
[New Thread 0x7f3f55be0700 (LWP 2083)]
[Switching to Thread 0x7f3f55be0700 (LWP 2083)]
另一視窗操作：
[root@mysqlsource bin]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.73-debug Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+---------------------------+
| Tables_in_mysql |
+---------------------------+
| columns_priv |
| db |
| event |
| func |
| general_log |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| host |
| ndb_binlog_index |
| plugin |
| proc |
| procs_priv |
| servers |
| slow_log |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
23 rows in set (0.00 sec)
mysql> show create table user\G; （設定了斷點，會卡住）
返回原來視窗：
Breakpoint 1, mysqld_show_create (thd=0x25efd50, table_list=0x7f3f48004bb0) at sql_show.cc:712
712 {
(gdb) n //下一步
713 Protocol *protocol= thd->protocol;
(gdb) n
715 String buffer(buff, sizeof(buff), system_charset_info);
(gdb) n
716 DBUG_ENTER("mysqld_show_create");
(gdb) n
717 DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
(gdb) n
721 thd->lex->context_analysis_only|= CONTEXT_ANALYSIS_ONLY_VIEW;
(gdb) n
724 Show_create_error_handler view_error_suppressor(thd, table_list);
(gdb) n
725 thd->push_internal_handler(&view_error_suppressor);
(gdb) n
726 bool error= open_normal_and_derived_tables(thd, table_list, 0);
(gdb) n
727 thd->pop_internal_handler();
(gdb) n
728 if (error && (thd->killed || thd->main_da.is_error()))
(gdb) n
729 DBUG_RETURN(TRUE);
(gdb) n
733 if (thd->lex->only_view && !table_list->view)
(gdb) n
740 buffer.length(0);
(gdb) n
742 if (table_list->view)
(gdb) n
751 List<Item> field_list;
(gdb) n
752 if (table_list->view)
(gdb) p table_list->db
$1 = 0x7f3f48004ee0 "mysql"
(gdb) p table_list->table_name
$2 = 0x7f3f48004b78 "user"
(gdb)
之前都用root使用者有 ptrace: Operation not permitted. 報錯！！
首先下載一個版本比較低的mysql，比如5.1.66等
[root@mysqlsource mysql]# ll
total 144240
drwxrwxr-x. 33 mysql mysql 4096 Aug 21 14:39 mysql-5.1.66
-rw-r--r--. 1 root root 24771341 Aug 21 11:00 mysql-5.1.66.tar.gz
drwxrwxrwx. 32 7155 wheel 4096 Aug 21 14:46 mysql-5.1.73
-rw-r--r--. 1 root root 24023347 Aug 21 11:00 mysql-5.1.73.tar.gz
-rw-r--r--. 1 root root 24258297 Aug 21 11:00 mysql-5.5.8.tar.gz
-rw-r--r--. 1 root root 33115516 Aug 21 11:01 mysql-5.6.22.tar.gz
-rw-r--r--. 1 root root 41514167 Aug 21 11:00 mysql-5.6.26.zip
[root@mysqlsource mysql]#
解壓一下：
tar -xvf mysql-5.1.66.tar.gz
cd mysql-5.1.66
執行編譯：
[root@mysqlsource mysql-5.1.66]# ./configure --with-debug
報錯1：
編譯MySQL的過程中提示：
/bin/rm: cannot remove `libtoolt': No such file or directory
解決：
1、確認libtool是否已經安裝，如果沒有安裝的話，則先安裝libtool
# yum -y install libtool
2、分別執行以下三條命令：
# autoreconf --force --install
# libtoolize --automake --force
# automake --force --add-missing
再重新編譯安裝，問題解決！
或者
直接開啟 configure，把 $RM "$cfgfile" 那行刪除掉，重新再執行 ./configure
報錯2：
執行make時報錯
[root@mysqlsource mysql-5.1.66]# make
cc1: warnings being treated as errors
terminal.c: In function ‘terminal_set’:
terminal.c:911: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:912: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:914: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:915: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:917: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:918: error: passing argument 1 of ‘tgetflag’ discards qualifiers from pointer target type
/usr/include/term.h:783: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:920: error: passing argument 1 of ‘tgetnum’ discards qualifiers from pointer target type
/usr/include/term.h:784: note: expected ‘char *’ but argument is of type ‘const char *’
terminal.c:921: error: passing argument 1 of ‘tgetnum’ discards qualifiers from pointer target type
/usr/include/term.h:784: note: expected ‘char *’ but argument is of type ‘const char *’
make[2]: *** [terminal.o] Error 1
make[2]: Leaving directory `/home/mysql/mysql-5.1.73/cmd-line-utils/libedit'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/mysql/mysql-5.1.73/cmd-line-utils'
make: *** [all-recursive] Error 1
[root@mysqlsource mysql-5.1.73]#
編譯使用另外的命令，則不報錯：
[root@mysqlsource mysql-5.1.66]# ./configure --with-debug --enable-mysql-maintainer-mode=no
*****************************************************************************************
chown -R mysql:mysql /home/mysql
./configure --prefix=/home/mysql/mysql-5.1.73/ddmysql --localstatedir=/home/mysql/mysql-5.1.73/ddmysql/data --with-debug --enable-mysql-maintainer-mode=no
bin/mysql_install_db --basedir=/home/mysql/mysql-5.1.73/ddmysql --datadir=/home/mysql/mysql-5.1.73/ddmysql/data --user=mysql
--basedir=/home/mysql/mysql-5.1.73/ddmysql/ --datadir=/home/mysql/mysql-5.1.73/ddmysql/data/ --socket=/tmp/mysql.sock --user=mysql
*****************************************************************************************
[mysql@mysqlsource bin]$ ps -ef | grep mysql
root 1431 1417 0 16:46 ? 00:00:00 [mysqld] <defunct>
mysql 1992 2757 0 16:50 pts/1 00:00:00 /home/mysql/mysql-5.1.73/sql/mysqld --basedir=/home/mysql/mysql-5.1.73/ddmysql/ --datadir=/home/mysql/mysql-5.1.73/ddmysql/data/ --socket=/tmp/mysql.sock
mysql 2029 25296 1 16:52 pts/3 00:00:00 ps -ef
mysql 2031 25296 0 16:52 pts/3 00:00:00 grep mysql
root 2037 1 0 Aug19 ? 00:05:25 /usr/bin/Xvnc :1 -desktop mysqlsource:1 (root) -auth /root/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /root/.vnc/passwd -rfbport 5901 -fp catalogue:/etc/X11/fontpath.d -pn
root 25295 7364 0 16:33 pts/3 00:00:00 su - mysql
mysql 25296 25295 0 16:33 pts/3 00:00:00 -bash
[mysql@mysqlsource bin]$ gdb
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-60.el6)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later < /> 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:
< /> (gdb) attach 1992 //關聯程式
Attaching to process 1992
Reading symbols from /home/mysql/mysql-5.1.73/sql/mysqld...done.
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done.
[New LWP 1998]
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libcrypt.so.1
Reading symbols from /lib64/libnsl.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnsl.so.1
Reading symbols from /usr/lib64/libstdc++.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libstdc++.so.6
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /lib64/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libgcc_s.so.1
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libfreebl3.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libfreebl3.so
Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnss_files.so.2
0x0000003b39ae14f3 in select () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.107.el6.x86_64 libgcc-4.4.7-3.el6.x86_64 libstdc++-4.4.7-3.el6.x86_64 nss-softokn-freebl-3.12.9-11.el6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) b mysqld_show_create //設定斷點
Breakpoint 1 at 0x6a45e8: file sql_show.cc, line 712.
(gdb) c //繼續
Continuing.
[New Thread 0x7f3f55be0700 (LWP 2083)]
[Switching to Thread 0x7f3f55be0700 (LWP 2083)]
另一視窗操作：
[root@mysqlsource bin]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.73-debug Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+---------------------------+
| Tables_in_mysql |
+---------------------------+
| columns_priv |
| db |
| event |
| func |
| general_log |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| host |
| ndb_binlog_index |
| plugin |
| proc |
| procs_priv |
| servers |
| slow_log |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
23 rows in set (0.00 sec)
mysql> show create table user\G; （設定了斷點，會卡住）
返回原來視窗：
Breakpoint 1, mysqld_show_create (thd=0x25efd50, table_list=0x7f3f48004bb0) at sql_show.cc:712
712 {
(gdb) n //下一步
713 Protocol *protocol= thd->protocol;
(gdb) n
715 String buffer(buff, sizeof(buff), system_charset_info);
(gdb) n
716 DBUG_ENTER("mysqld_show_create");
(gdb) n
717 DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
(gdb) n
721 thd->lex->context_analysis_only|= CONTEXT_ANALYSIS_ONLY_VIEW;
(gdb) n
724 Show_create_error_handler view_error_suppressor(thd, table_list);
(gdb) n
725 thd->push_internal_handler(&view_error_suppressor);
(gdb) n
726 bool error= open_normal_and_derived_tables(thd, table_list, 0);
(gdb) n
727 thd->pop_internal_handler();
(gdb) n
728 if (error && (thd->killed || thd->main_da.is_error()))
(gdb) n
729 DBUG_RETURN(TRUE);
(gdb) n
733 if (thd->lex->only_view && !table_list->view)
(gdb) n
740 buffer.length(0);
(gdb) n
742 if (table_list->view)
(gdb) n
751 List<Item> field_list;
(gdb) n
752 if (table_list->view)
(gdb) p table_list->db
$1 = 0x7f3f48004ee0 "mysql"
(gdb) p table_list->table_name
$2 = 0x7f3f48004b78 "user"
(gdb)
來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/29500582/viewspace-1778849/，如需轉載，請註明出處，否則將追究法律責任。
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