1ed36323fSMasahiro Yamadamenu "Library routines" 2ed36323fSMasahiro Yamada 3b0928da6SMasahiro Yamadaconfig CC_OPTIMIZE_LIBS_FOR_SPEED 4b0928da6SMasahiro Yamada bool "Optimize libraries for speed" 5b0928da6SMasahiro Yamada help 6b0928da6SMasahiro Yamada Enabling this option will pass "-O2" to gcc when compiling 7b0928da6SMasahiro Yamada under "lib" directory. 8b0928da6SMasahiro Yamada 9b0928da6SMasahiro Yamada If unsure, say N. 10b0928da6SMasahiro Yamada 1145ccec8fSMasahiro Yamadaconfig HAVE_PRIVATE_LIBGCC 1245ccec8fSMasahiro Yamada bool 1345ccec8fSMasahiro Yamada 1445ccec8fSMasahiro Yamadaconfig USE_PRIVATE_LIBGCC 1545ccec8fSMasahiro Yamada bool "Use private libgcc" 1645ccec8fSMasahiro Yamada depends on HAVE_PRIVATE_LIBGCC 1745ccec8fSMasahiro Yamada help 1845ccec8fSMasahiro Yamada This option allows you to use the built-in libgcc implementation 1945ccec8fSMasahiro Yamada of U-boot instead of the one privided by the compiler. 2045ccec8fSMasahiro Yamada If unsure, say N. 2145ccec8fSMasahiro Yamada 228c688bc4SMasahiro Yamadaconfig SYS_HZ 238c688bc4SMasahiro Yamada int 248c688bc4SMasahiro Yamada default 1000 258c688bc4SMasahiro Yamada help 268c688bc4SMasahiro Yamada The frequency of the timer returned by get_timer(). 278c688bc4SMasahiro Yamada get_timer() must operate in milliseconds and this option must be 288c688bc4SMasahiro Yamada set to 1000. 298c688bc4SMasahiro Yamada 308156345dSSimon Glassconfig SYS_VSNPRINTF 318156345dSSimon Glass bool "Enable safe version of sprintf()" 328156345dSSimon Glass help 338156345dSSimon Glass Since sprintf() can overflow its buffer, it is common to use 348156345dSSimon Glass snprintf() instead, which knows the buffer size and can avoid 358156345dSSimon Glass overflow. However, this does increase code size slightly (for 368156345dSSimon Glass Thumb-2, about 420 bytes). Enable this option for safety when 378156345dSSimon Glass using sprintf() with data you do not control. 388156345dSSimon Glass 391a60650cSJoe Hershbergerconfig REGEX 401a60650cSJoe Hershberger bool "Enable regular expression support" 41f7848d90SJoe Hershberger default y if NET 421a60650cSJoe Hershberger help 431a60650cSJoe Hershberger If this variable is defined, U-Boot is linked against the 441a60650cSJoe Hershberger SLRE (Super Light Regular Expression) library, which adds 451a60650cSJoe Hershberger regex support to some commands, for example "env grep" and 461a60650cSJoe Hershberger "setexpr". 471a60650cSJoe Hershberger 489ba9e85fSMichal Simekconfig LIB_RAND 493850dbe8SMasahiro Yamada bool "Pseudo-random library support " 503850dbe8SMasahiro Yamada help 513850dbe8SMasahiro Yamada This library provides pseudo-random number generator functions. 529ba9e85fSMichal Simek 53d1389403SSimon Glasssource lib/dhry/Kconfig 54d1389403SSimon Glass 55d9f23c7fSRuchika Guptasource lib/rsa/Kconfig 56c4beb22fSRuchika Gupta 5794e3c8c4Sgaurav ranamenu "Hashing Support" 5894e3c8c4Sgaurav rana 5994e3c8c4Sgaurav ranaconfig SHA1 6094e3c8c4Sgaurav rana bool "Enable SHA1 support" 6194e3c8c4Sgaurav rana help 6294e3c8c4Sgaurav rana This option enables support of hashing using SHA1 algorithm. 6394e3c8c4Sgaurav rana The hash is calculated in software. 6494e3c8c4Sgaurav rana The SHA1 algorithm produces a 160-bit (20-byte) hash value 6594e3c8c4Sgaurav rana (digest). 6694e3c8c4Sgaurav rana 6794e3c8c4Sgaurav ranaconfig SHA256 6894e3c8c4Sgaurav rana bool "Enable SHA256 support" 6994e3c8c4Sgaurav rana help 7094e3c8c4Sgaurav rana This option enables support of hashing using SHA256 algorithm. 7194e3c8c4Sgaurav rana The hash is calculated in software. 7294e3c8c4Sgaurav rana The SHA256 algorithm produces a 256-bit (32-byte) hash value 7394e3c8c4Sgaurav rana (digest). 7494e3c8c4Sgaurav rana 7594e3c8c4Sgaurav ranaconfig SHA_HW_ACCEL 7694e3c8c4Sgaurav rana bool "Enable hashing using hardware" 7794e3c8c4Sgaurav rana help 7894e3c8c4Sgaurav rana This option enables hardware acceleration 7994e3c8c4Sgaurav rana for SHA1/SHA256 hashing. 8094e3c8c4Sgaurav rana This affects the 'hash' command and also the 8194e3c8c4Sgaurav rana hash_lookup_algo() function. 8294e3c8c4Sgaurav rana 8394e3c8c4Sgaurav ranaconfig SHA_PROG_HW_ACCEL 8494e3c8c4Sgaurav rana bool "Enable Progressive hashing support using hardware" 8594e3c8c4Sgaurav rana depends on SHA_HW_ACCEL 8694e3c8c4Sgaurav rana help 8794e3c8c4Sgaurav rana This option enables hardware-acceleration for 8894e3c8c4Sgaurav rana SHA1/SHA256 progressive hashing. 8994e3c8c4Sgaurav rana Data can be streamed in a block at a time and the hashing 9094e3c8c4Sgaurav rana is performed in hardware. 9194e3c8c4Sgaurav ranaendmenu 9294e3c8c4Sgaurav rana 936501ff62SPrzemyslaw Marczakconfig ERRNO_STR 946501ff62SPrzemyslaw Marczak bool "Enable function for getting errno-related string message" 956501ff62SPrzemyslaw Marczak help 966501ff62SPrzemyslaw Marczak The function errno_str(int errno), returns a pointer to the errno 976501ff62SPrzemyslaw Marczak corresponding text message: 986501ff62SPrzemyslaw Marczak - if errno is null or positive number - a pointer to "Success" message 996501ff62SPrzemyslaw Marczak - if errno is negative - a pointer to errno related message 1006501ff62SPrzemyslaw Marczak 101*867a6ac8SSimon Glasssource lib/efi/Kconfig 102*867a6ac8SSimon Glass 103ed36323fSMasahiro Yamadaendmenu 104