GDB Common Commands

Find./-name "*.sql" | awk ' {cmd_str= ' \ ' "" "" "" "" "; print Cmd_str} ' | Xargs Grep-rn Ifusedestroute

Dir/v8t/ngtf/server/trade_server: $cdir: $CWD
Break commit_mq_thread.cpp:59 if (processing_idx==636645)

Dir/tmp/src/data_pump: $cdir: $CWD
DIR/HOME/YONG.LIU2/SRC/ARCH/OFFER2/OFFER/EXCH_MARKET/OFFER_TEST/RECV_CZCEMD: $cdir: $CWD
Break zk_mgr.cpp:210
Break zk_mgr.cpp:902

Gdb-c core File Execution file #查看core文件

Gdb-d/tmp/jinyuankehuwenti/src_v8t/product/v8t/trade_server:/tmp/jinyuankehuwenti/src_v8t/ngtf/server/trade_ Server Trade_server
>dir/tmp/jinyuankehuwenti/src_v8t/product/v8t/trade_server:/tmp/jinyuankehuwenti/src_v8t/ngtf/server/trade_ Server: $cdir: $CWD #设置源代码路径
Break process_thread.cpp:123 if ((info.serialno==660390))
>break public_business.cpp:8321 if (fldcancelreturnreq.entrust_no==1)
>display Fldshmargindissyn.bs_margin_flag
>break public_business.cpp:5774 if ((cur_serial>=854398) && (cur_serial<=85502))
Break sync_hold_handle.cpp:5290 if ((strcmp (Req.tx_no.buf, "02200667") ==0) && (strcmp (Req.contract_code.buf, "ag1512") ==0))

Dir/tmp/offer:/tmp/offer/zk_2: $cdir: $CWD
Break zk_mgr.cpp:1153

Gdb-d/tmp/v8t_8316_test/src/product/v8t/trade_server Trade_server

gdb-d {src path} program name |;| Core file
>start #开始运行并在main中停止
>dir/tmp/v8t_8316_test/src/product/v8t/trade_server:/tmp/v8t_8316_test/src/ngtf/server/trade_server/: $cdir: $CWD #设置源代码路径
>list Cappserver::run () #查看源代码
>ctrl+x+a #显示/Hidden graphics
> Break appserver.cpp:318 if ((serialno==101475) | | (serialno==105431)) #条件断点

Break process_thread.cpp:123 if (nextsequence==25528)

Break appserver.cpp:238
> Break public_business.cpp:5933 if (flddonereturnreq.entrust_no==151940)
> Break order_manage.cpp:2045 if (strcmp (Fldfundreq.cust_no, "1001101771") ==0)
Break order_manage.cpp:12530
>break appserver.cpp:318 if ((serialno>=1023942)) # ((serialno>=1048506))
Break public_business.cpp:10088 if (strcmp (Flddonereturnreq.exch_done_no, "00000594") ==0)
(GDB) call Close (1)
(GDB) call Close (2)
(GDB) Shell TTY
/dev/pts/0
(GDB) Call Open ("/dev/pts/0", 2)
(GDB) Call Open ("/dev/pts/0", 2)

>dir/tmp/v8t_src/v8t_8311/product/v8t/trade_bu
>break entrust.cpp:78
> Break module_func.cpp:1258
Break trade_pub.cpp:14562
Break P_cal_can_open_qty

1. Command: File file name
Function: Loads the specified executable file into gdb;

Command:-d {Directory}
-directory={directory}
Function: Specify the path where the source and header files are located

Command: Set args run parameter
Show args
Features: Set or view run parameters

Command: path [directory] #把目录directory加入到搜索可执行文件和符号文件的路径中
Show Paths #查看程序的运行路径.
Function: Set or view program run path

Command:-cd={directory}
Function: Runs GDB with the specified directory as the current path

Command:
Set environment varname [=value] #设置环境变量. such as: Set env User=hchen
Show environment [VarName] #查看环境变量.
Features: setting or viewing environment variables

Command: CD

Command:
Attach
Detach
Features: hooking/canceling a hooked up process

Command: Info program #查看程序的是否在运行, process number
Info break [n] #查看断点
info breakpoints [n]
Info watchpoints #列出当前设置的所有观察点
Info Locals #打印出当前函数中所有局部变量及其值
Info Catch #打印出当前的函数中的异常处理信息
info [Files/share] #列出当前的文件, shared library
Function: Check whether the program is running, process number

Command:?????
Function: Specify working directory, run parameters

Command:?????
Features: loading executables or dependent dynamic libraries




Command: List
Function: View Source code

Command:?????
Function: View the source code of the specified file, specified location, or function


Command: B/break [line number] #设置断点
B/break [function name] #设置断点
B/break [+/-]offset
B/break File:func | File:nth
B/break *address
B/break Line-number If condition
B/break Line Threadthread-number
Tbreak #设置临时的断点. Breakpoints are deleted after one break
Command: D/delete [Breakpoint-number] #删除所有断点
D/delete [Range]
Clear Func #清除函数func处的断点
Clear Nth #清除第nth行处的断点
Disable [Breakpoint-number | range] #
Enable [Breakpiont-number | range] #
Enable once Breakpint-number #设置指定断点有效 when the breakpoint is reached is invalid
Enable del Breakpiont-number #设置指定断点有效 to delete a breakpoint when it is reached

Command: Condition <break_list Breakpoint Number list > (condition condition)
Features: such as cond 4 i==3 add interrupt condition on breakpoint 4



Command: Run
Function: Run

Command: Start
Function: Run, single stop at main;

Command: C
Function: Continue running until end or hit breakpoint

Command: N/next
N/next number
Functions: Single Step execution

Command: Step
S/step Number-of-steps-to-perform #
Function: Enter function execution

Command: Finish
Function: Runs the program until the current function finishes returning.
and prints information such as the stack address and return value and parameter values when the function returns

Command: U/until #当你厌倦了在一个循环体内单步跟踪时, this command can run the program until you exit the loop body
U/until Line-number #继续运行直到到达指定行号, or functions, addresses, etc.
U/until Line-number ifcondition
Function: When you are tired of stepping through a loop, this command can run the program until you exit the loop body

Command: Bt/backtrace [n]
Function: Prints all the information of the current function call stack
n is a positive integer representing only the stack information at the top n-tier of the stack


Command:
Watch #为表达式 (variable) expr sets an observer point. Stop the program as soon as the value of an expression changes
Rwatch #当表达式 (variable) when expr is read, stop the program
Awatch the value of the #当表达式 (variable) is read or written, stop the program.

Command:
Display #程序停止时显示变量和表达时
Info display #显示当前所有的要显示值的表达式.
Delete Display/undisplay [expression number] #删除要显示值的表达式
Disable display [expression number] #暂时不显示一个要表达式的值
The Enable display expression number #与disable display instead, use an expression to resume displaying
Whatis #显示变量或函数类型
PType #比whatis的功能更强 that he could provide a definition of a structure

Second, remote debugging
1. Service-side
gdbserver:2345 [Options] Trade_server-b
gdbserver [Options] COMM PROG [ARGS ...]
Gdbserver []--attach COMM PID
Gdbserver []--multi COMM

Options:
--debug
--remote-debug Enable remote protocol debugging output.
2. Client
Gdb
> Target Remote Ip:port

Break public_business.cpp:14746 if (strcmp (Cust_no, "82070418") ==0)
Break order_manage.cpp:2103 if (strcmp (Req_vector[0].all_contract_code.getvalue (), "sr1705-c-7000") ==0)
Break order_manage.cpp:753
Break match_return.cpp:235
Break public_business.cpp:6715

GDB Common Commands