10.12 Convenience Functions

gdb also supplies some convenience functions. These have a syntax similar to convenience variables. A convenience function can be used in an expression just like an ordinary function; however, a convenience function is implemented internally to gdb.

These functions require gdb to be configured with Python support.

$_memeq(buf1, buf2, length)

Returns one if the length bytes at the addresses given by buf1 and buf2 are equal. Otherwise it returns zero.

$_regex(str, regex)

Returns one if the string str matches the regular expression regex. Otherwise it returns zero. The syntax of the regular expression is that specified by Python's regular expression support.

$_streq(str1, str2)

Returns one if the strings str1 and str2 are equal. Otherwise it returns zero.

$_strlen(str)

Returns the length of string str.

gdb provides the ability to list and get help on convenience functions.

help function

Print a list of all convenience functions.