| menu "Library routines" |
| |
| config CC_OPTIMIZE_LIBS_FOR_SPEED |
| bool "Optimize libraries for speed" |
| help |
| Enabling this option will pass "-O2" to gcc when compiling |
| under "lib" directory. |
| |
| If unsure, say N. |
| |
| config HAVE_PRIVATE_LIBGCC |
| bool |
| |
| config USE_PRIVATE_LIBGCC |
| bool "Use private libgcc" |
| depends on HAVE_PRIVATE_LIBGCC |
| help |
| This option allows you to use the built-in libgcc implementation |
| of U-boot instead of the one privided by the compiler. |
| If unsure, say N. |
| |
| config SYS_HZ |
| int |
| default 1000 |
| help |
| The frequency of the timer returned by get_timer(). |
| get_timer() must operate in milliseconds and this option must be |
| set to 1000. |
| |
| config SYS_VSNPRINTF |
| bool "Enable safe version of sprintf()" |
| help |
| Since sprintf() can overflow its buffer, it is common to use |
| snprintf() instead, which knows the buffer size and can avoid |
| overflow. However, this does increase code size slightly (for |
| Thumb-2, about 420 bytes). Enable this option for safety when |
| using sprintf() with data you do not control. |
| |
| config REGEX |
| bool "Enable regular expression support" |
| help |
| If this variable is defined, U-Boot is linked against the |
| SLRE (Super Light Regular Expression) library, which adds |
| regex support to some commands, for example "env grep" and |
| "setexpr". |
| |
| source lib/rsa/Kconfig |
| |
| menu "Hashing Support" |
| |
| config SHA1 |
| bool "Enable SHA1 support" |
| help |
| This option enables support of hashing using SHA1 algorithm. |
| The hash is calculated in software. |
| The SHA1 algorithm produces a 160-bit (20-byte) hash value |
| (digest). |
| |
| config SHA256 |
| bool "Enable SHA256 support" |
| help |
| This option enables support of hashing using SHA256 algorithm. |
| The hash is calculated in software. |
| The SHA256 algorithm produces a 256-bit (32-byte) hash value |
| (digest). |
| |
| config SHA_HW_ACCEL |
| bool "Enable hashing using hardware" |
| help |
| This option enables hardware acceleration |
| for SHA1/SHA256 hashing. |
| This affects the 'hash' command and also the |
| hash_lookup_algo() function. |
| |
| config SHA_PROG_HW_ACCEL |
| bool "Enable Progressive hashing support using hardware" |
| depends on SHA_HW_ACCEL |
| help |
| This option enables hardware-acceleration for |
| SHA1/SHA256 progressive hashing. |
| Data can be streamed in a block at a time and the hashing |
| is performed in hardware. |
| endmenu |
| |
| endmenu |