如何从$ 1重新命名GDB的内部变量？

Question

By default, GDB's internal variables will be $1, $2, $3, .... How to restart naming them from $1?

(gdb) p v1
$1 = 7
(gdb) p v2
$2 = 8
(gdb) p v3
$3 = 9
(gdb) ??? // what should be put here?
$1 = 0

Answer 1

Looking at the documentation , there's no explicit command to clear the value history.

It does mention that the file and symbol-file commands, which can change the symbol table, clear the history.

Also, you can use output instead of print to avoid putting the printed value in the value history.