Linux Base 2--gdb Debugger

General steps used by the GDB debugger (constantly updated and perfected):

1, the compilation process to use the-G parameter to add debug symbols--GCC test.c-g;

2, gdb start executable file--gdb a.out;

3, the appearance of the GDB symbol indicates a successful start;

4, "L" (small L) command can see whether the current code is to execute the code;

5. Breakpoints

b line number/function name-function is the program execution will automatically pause at the breakpoint, waiting for instructions

Info b--View Breakpoint List

D Number--delete the breakpoint with the specified number

6. Execution procedure

R Enter--the program starts, executes to the first breakpoint at the code where it pauses

7. Single Step execution

N executes a statement, and if the next statement is a function, the skip function continues execution;

s executes a statement that, if the next statement is a function, enters into the function to step inside;

8. View variable values

P Variable name--view the value in the current variable

Change the current variable value set var variable name = new value

9. Exit the current debugging environment

Command "Q"

Linux Base 2--gdb Debugger