<1> Using GDB to Debug a Program
bash$ gdb Lab5
<2&5> Specify a condition in the program and apply it to any breakpoint.
Let’s stop a loop at the 99th iteration
(gdb) b 112 if i == 99
<3> Delete breakpoint1
(gdb) delete 1
<4> Print values of variables
(gdb) print i
<2&5> Set breakpoint at specified location.
(gdb) break [LOCATION] [if CONDITION]
where
CONDITION is a boolean expression.
<6> Continue running the code
(gdb) continue // read and skip function
(gdb) step // read line by line
Use GDB to debug code (2-Example)
原文：https://www.cnblogs.com/JasperZhao/p/12914074.html