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Masahiro Yamadaed363232014-09-16 16:32:58 +09001menu "Library routines"
2
Masahiro Yamadab0928da2014-09-16 16:32:59 +09003config 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
Masahiro Yamada45ccec82014-10-24 01:30:43 +090011config 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
Masahiro Yamada8c688bc2014-10-24 01:30:40 +090022config 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
Simon Glass81563452015-03-06 13:19:02 -070030config SYS_VSNPRINTF
31 bool "Enable safe version of sprintf()"
32 help
33 Since sprintf() can overflow its buffer, it is common to use
34 snprintf() instead, which knows the buffer size and can avoid
35 overflow. However, this does increase code size slightly (for
36 Thumb-2, about 420 bytes). Enable this option for safety when
37 using sprintf() with data you do not control.
38
Joe Hershberger1a606502015-04-21 17:02:42 -050039config REGEX
40 bool "Enable regular expression support"
Joe Hershbergerf7848d92015-06-22 17:57:36 -050041 default y if NET
Joe Hershberger1a606502015-04-21 17:02:42 -050042 help
43 If this variable is defined, U-Boot is linked against the
44 SLRE (Super Light Regular Expression) library, which adds
45 regex support to some commands, for example "env grep" and
46 "setexpr".
47
Michal Simek9ba9e852015-05-25 11:37:22 +020048config LIB_RAND
Masahiro Yamada3850dbe2015-06-11 19:16:43 +090049 bool "Pseudo-random library support "
50 help
51 This library provides pseudo-random number generator functions.
Michal Simek9ba9e852015-05-25 11:37:22 +020052
Simon Glassd1389402015-06-23 15:38:23 -060053source lib/dhry/Kconfig
54
Ruchika Guptad9f23c72015-01-23 16:01:56 +053055source lib/rsa/Kconfig
Ruchika Guptac4beb222015-01-23 16:01:51 +053056
Simon Glassa7d660b2015-08-22 18:31:19 -060057config TPM
58 bool "Trusted Platform Module (TPM) Support"
59 help
60 This enables support for TPMs which can be used to provide security
61 features for your board. The TPM can be connected via LPC or I2C
62 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
63 command to interactive the TPM. Driver model support is provided
64 for the low-level TPM interface, but only one TPM is supported at
65 a time by the TPM library.
66
gaurav rana94e3c8c2015-02-20 12:51:46 +053067menu "Hashing Support"
68
69config SHA1
70 bool "Enable SHA1 support"
71 help
72 This option enables support of hashing using SHA1 algorithm.
73 The hash is calculated in software.
74 The SHA1 algorithm produces a 160-bit (20-byte) hash value
75 (digest).
76
77config SHA256
78 bool "Enable SHA256 support"
79 help
80 This option enables support of hashing using SHA256 algorithm.
81 The hash is calculated in software.
82 The SHA256 algorithm produces a 256-bit (32-byte) hash value
83 (digest).
84
85config SHA_HW_ACCEL
86 bool "Enable hashing using hardware"
87 help
88 This option enables hardware acceleration
89 for SHA1/SHA256 hashing.
90 This affects the 'hash' command and also the
91 hash_lookup_algo() function.
92
93config SHA_PROG_HW_ACCEL
94 bool "Enable Progressive hashing support using hardware"
95 depends on SHA_HW_ACCEL
96 help
97 This option enables hardware-acceleration for
98 SHA1/SHA256 progressive hashing.
99 Data can be streamed in a block at a time and the hashing
100 is performed in hardware.
101endmenu
102
Julius Werner027b7282015-10-06 20:03:53 -0700103menu "Compression Support"
104
105config LZ4
106 bool "Enable LZ4 decompression support"
107 help
108 If this option is set, support for LZ4 compressed images
109 is included. The LZ4 algorithm can run in-place as long as the
110 compressed image is loaded to the end of the output buffer, and
111 trades lower compression ratios for much faster decompression.
112
113 NOTE: This implements the release version of the LZ4 frame
114 format as generated by default by the 'lz4' command line tool.
115 This is not the same as the outdated, less efficient legacy
116 frame format currently (2015) implemented in the Linux kernel
117 (generated by 'lz4 -l'). The two formats are incompatible.
118
119endmenu
120
Przemyslaw Marczak6501ff62015-04-20 20:07:40 +0200121config ERRNO_STR
122 bool "Enable function for getting errno-related string message"
123 help
124 The function errno_str(int errno), returns a pointer to the errno
125 corresponding text message:
126 - if errno is null or positive number - a pointer to "Success" message
127 - if errno is negative - a pointer to errno related message
128
Simon Glass867a6ac2015-07-31 09:31:36 -0600129source lib/efi/Kconfig
130
Masahiro Yamadaed363232014-09-16 16:32:58 +0900131endmenu