LXR uboot/lib/Kconfig

   1menu "Library routines"
   2
   3config CC_OPTIMIZE_LIBS_FOR_SPEED
   4        bool "Optimize libraries for speed"
   5        help
   6          Enabling this option will pass "-O2" to gcc when compiling
   7          under "lib" directory.
   8
   9          If unsure, say N.
  10
  11config HAVE_PRIVATE_LIBGCC
  12        bool
  13
  14config USE_PRIVATE_LIBGCC
  15        bool "Use private libgcc"
  16        depends on HAVE_PRIVATE_LIBGCC
  17        help
  18          This option allows you to use the built-in libgcc implementation
  19          of U-Boot instead of the one privided by the compiler.
  20          If unsure, say N.
  21
  22config SYS_HZ
  23        int
  24        default 1000
  25        help
  26          The frequency of the timer returned by get_timer().
  27          get_timer() must operate in milliseconds and this option must be
  28          set to 1000.
  29
  30config USE_TINY_PRINTF
  31        bool "Enable tiny printf() version"
  32        help
  33          This option enables a tiny, stripped down printf version.
  34          This should only be used in space limited environments,
  35          like SPL versions with hard memory limits. This version
  36          reduces the code size by about 2.5KiB on armv7.
  37
  38          The supported format specifiers are %c, %s, %u/%d and %x.
  39
  40config REGEX
  41        bool "Enable regular expression support"
  42        default y if NET
  43        help
  44          If this variable is defined, U-Boot is linked against the
  45          SLRE (Super Light Regular Expression) library, which adds
  46          regex support to some commands, for example "env grep" and
  47          "setexpr".
  48
  49config LIB_RAND
  50        bool "Pseudo-random library support "
  51        help
  52          This library provides pseudo-random number generator functions.
  53
  54source lib/dhry/Kconfig
  55
  56source lib/rsa/Kconfig
  57
  58config TPM
  59        bool "Trusted Platform Module (TPM) Support"
  60        depends on DM
  61        help
  62          This enables support for TPMs which can be used to provide security
  63          features for your board. The TPM can be connected via LPC or I2C
  64          and a sandbox TPM is provided for testing purposes. Use the 'tpm'
  65          command to interactive the TPM. Driver model support is provided
  66          for the low-level TPM interface, but only one TPM is supported at
  67          a time by the TPM library.
  68
  69menu "Hashing Support"
  70
  71config SHA1
  72        bool "Enable SHA1 support"
  73        help
  74          This option enables support of hashing using SHA1 algorithm.
  75          The hash is calculated in software.
  76          The SHA1 algorithm produces a 160-bit (20-byte) hash value
  77          (digest).
  78
  79config SHA256
  80        bool "Enable SHA256 support"
  81        help
  82          This option enables support of hashing using SHA256 algorithm.
  83          The hash is calculated in software.
  84          The SHA256 algorithm produces a 256-bit (32-byte) hash value
  85          (digest).
  86
  87config SHA_HW_ACCEL
  88        bool "Enable hashing using hardware"
  89        help
  90          This option enables hardware acceleration
  91          for SHA1/SHA256 hashing.
  92          This affects the 'hash' command and also the
  93          hash_lookup_algo() function.
  94
  95config SHA_PROG_HW_ACCEL
  96        bool "Enable Progressive hashing support using hardware"
  97        depends on SHA_HW_ACCEL
  98        help
  99          This option enables hardware-acceleration for
 100          SHA1/SHA256 progressive hashing.
 101          Data can be streamed in a block at a time and the hashing
 102          is performed in hardware.
 103endmenu
 104
 105menu "Compression Support"
 106
 107config LZ4
 108        bool "Enable LZ4 decompression support"
 109        help
 110          If this option is set, support for LZ4 compressed images
 111          is included. The LZ4 algorithm can run in-place as long as the
 112          compressed image is loaded to the end of the output buffer, and
 113          trades lower compression ratios for much faster decompression.
 114          
 115          NOTE: This implements the release version of the LZ4 frame
 116          format as generated by default by the 'lz4' command line tool.
 117          This is not the same as the outdated, less efficient legacy
 118          frame format currently (2015) implemented in the Linux kernel
 119          (generated by 'lz4 -l'). The two formats are incompatible.
 120
 121endmenu
 122
 123config ERRNO_STR
 124        bool "Enable function for getting errno-related string message"
 125        help
 126          The function errno_str(int errno), returns a pointer to the errno
 127          corresponding text message:
 128          - if errno is null or positive number - a pointer to "Success" message
 129          - if errno is negative - a pointer to errno related message
 130
 131source lib/efi/Kconfig
 132
 133endmenu
 134