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Commit | Line | Data |
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ed36323f MY |
1 | menu "Library routines" |
2 | ||
b0928da6 MY |
3 | config 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 | ||
45ccec8f MY |
11 | config HAVE_PRIVATE_LIBGCC |
12 | bool | |
13 | ||
14 | config 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 | ||
8c688bc4 MY |
22 | config 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 | ||
8156345d SG |
30 | config 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 | ||
7d9cde10 SR |
39 | config USE_TINY_PRINTF |
40 | bool "Enable tiny printf() version" | |
41 | help | |
42 | This option enables a tiny, stripped down printf version. | |
43 | This should only be used in space limited environments, | |
44 | like SPL versions with hard memory limits. This version | |
45 | reduces the code size by about 2.5KiB on armv7. | |
46 | ||
47 | The supported format specifiers are %c, %s, %u/%d and %x. | |
48 | ||
1a60650c JH |
49 | config REGEX |
50 | bool "Enable regular expression support" | |
f7848d90 | 51 | default y if NET |
1a60650c JH |
52 | help |
53 | If this variable is defined, U-Boot is linked against the | |
54 | SLRE (Super Light Regular Expression) library, which adds | |
55 | regex support to some commands, for example "env grep" and | |
56 | "setexpr". | |
57 | ||
9ba9e85f | 58 | config LIB_RAND |
3850dbe8 MY |
59 | bool "Pseudo-random library support " |
60 | help | |
61 | This library provides pseudo-random number generator functions. | |
9ba9e85f | 62 | |
d1389403 SG |
63 | source lib/dhry/Kconfig |
64 | ||
d9f23c7f | 65 | source lib/rsa/Kconfig |
c4beb22f | 66 | |
a7d660bc SG |
67 | config TPM |
68 | bool "Trusted Platform Module (TPM) Support" | |
2419cd16 | 69 | depends on DM |
a7d660bc SG |
70 | help |
71 | This enables support for TPMs which can be used to provide security | |
72 | features for your board. The TPM can be connected via LPC or I2C | |
73 | and a sandbox TPM is provided for testing purposes. Use the 'tpm' | |
74 | command to interactive the TPM. Driver model support is provided | |
75 | for the low-level TPM interface, but only one TPM is supported at | |
76 | a time by the TPM library. | |
77 | ||
94e3c8c4 | 78 | menu "Hashing Support" |
79 | ||
80 | config SHA1 | |
81 | bool "Enable SHA1 support" | |
82 | help | |
83 | This option enables support of hashing using SHA1 algorithm. | |
84 | The hash is calculated in software. | |
85 | The SHA1 algorithm produces a 160-bit (20-byte) hash value | |
86 | (digest). | |
87 | ||
88 | config SHA256 | |
89 | bool "Enable SHA256 support" | |
90 | help | |
91 | This option enables support of hashing using SHA256 algorithm. | |
92 | The hash is calculated in software. | |
93 | The SHA256 algorithm produces a 256-bit (32-byte) hash value | |
94 | (digest). | |
95 | ||
96 | config SHA_HW_ACCEL | |
97 | bool "Enable hashing using hardware" | |
98 | help | |
99 | This option enables hardware acceleration | |
100 | for SHA1/SHA256 hashing. | |
101 | This affects the 'hash' command and also the | |
102 | hash_lookup_algo() function. | |
103 | ||
104 | config SHA_PROG_HW_ACCEL | |
105 | bool "Enable Progressive hashing support using hardware" | |
106 | depends on SHA_HW_ACCEL | |
107 | help | |
108 | This option enables hardware-acceleration for | |
109 | SHA1/SHA256 progressive hashing. | |
110 | Data can be streamed in a block at a time and the hashing | |
111 | is performed in hardware. | |
112 | endmenu | |
113 | ||
027b728d JW |
114 | menu "Compression Support" |
115 | ||
116 | config LZ4 | |
117 | bool "Enable LZ4 decompression support" | |
118 | help | |
119 | If this option is set, support for LZ4 compressed images | |
120 | is included. The LZ4 algorithm can run in-place as long as the | |
121 | compressed image is loaded to the end of the output buffer, and | |
122 | trades lower compression ratios for much faster decompression. | |
123 | ||
124 | NOTE: This implements the release version of the LZ4 frame | |
125 | format as generated by default by the 'lz4' command line tool. | |
126 | This is not the same as the outdated, less efficient legacy | |
127 | frame format currently (2015) implemented in the Linux kernel | |
128 | (generated by 'lz4 -l'). The two formats are incompatible. | |
129 | ||
130 | endmenu | |
131 | ||
6501ff62 PM |
132 | config ERRNO_STR |
133 | bool "Enable function for getting errno-related string message" | |
134 | help | |
135 | The function errno_str(int errno), returns a pointer to the errno | |
136 | corresponding text message: | |
137 | - if errno is null or positive number - a pointer to "Success" message | |
138 | - if errno is negative - a pointer to errno related message | |
139 | ||
867a6ac8 SG |
140 | source lib/efi/Kconfig |
141 | ||
ed36323f | 142 | endmenu |