GDB Operation Basic Command

GDB Operation Basic Command 1 open file and exit operation

Shell input GDB filename: Open a single file

GDB filename-q: Open a single file and block out GdB's own instructions

GDB input Quit (q), exit debugging

2 GDB Command

Command	Abbreviation	Explain
File filename		Open File under GdB
List	L	Displays the code, which displays 10 rows by default. Enter ENTER to display the next 10 lines The list can include additional parameters, such as: List 5,10 shows the code from line 5th to line 10th; The list func shows the code around the Func function, and the display range is related to the list parameter; List test.c:5,10 Displays the code for the source file test.c lines 5th through 10th, Typically used to debug a program with multiple source files.
Shell Clear		Empty the shell, clear the screen
Break Linenumber/funname	B	Break 6: Make a breakpoint on line 6th, or break a point on a function Conditional breakpoint: Break 6 if n = = 0, triggers a breakpoint when the variable n==0
Info	I	Info Breakpoints (i B): Show All Breakpoints Info Source View Current Program Info Stack View stack information Info args View current parameter values Info reg outputs The current value of all registers The use of the info frame output stack frame Info b n where n is the specified breakpoint number, displays the state information of the specified breakpoint, and displays information for all breakpoints when no parameter n is added
Disable Breaknumber		Disable 1: Make breakpoint 1 unable to be triggered
Clear Breaknumber		Clear 1: Delete N-line breakpoints
Delete Breaknumber		Delete N Breakpoint, delete all breakpoints by default
Run	R	Execute the program
Next	N	The next statement does not enter the function
Continue	C	Continue execution
Step	S	Stepping will enter the function body
Print variable name or expression		Print the variable or the value of the expression
Whatis variable name or expression		Displays the data type of the variable or expression
Set variable variable = value		Assign a value to the corresponding variable
Watch variable		Sets the watch variable, which triggers when the value of the variable changes
Finish		Jump out of the current function

GDB Operation Basic Command