cyassl: update to wolfssl version 3.9.6
[openwrt/openwrt.git] / config / Config-build.in
1 # Copyright (C) 2006-2013 OpenWrt.org
2 # Copyright (C) 2016 LEDE Project
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7
8 menu "Global build settings"
9
10 config ALL_NONSHARED
11 bool "Select all target specific packages by default"
12 default ALL
13
14 config ALL_KMODS
15 bool "Select all kernel module packages by default"
16 default ALL
17
18 config ALL
19 bool "Select all userspace packages by default"
20 default n
21
22 config SIGNED_PACKAGES
23 bool "Cryptographically signed package lists"
24 default y
25
26 comment "General build options"
27
28 config DISPLAY_SUPPORT
29 bool "Show packages that require graphics support (local or remote)"
30 default n
31
32 config BUILD_PATENTED
33 default y
34 bool "Compile with support for patented functionality"
35 help
36 When this option is disabled, software which provides patented functionality
37 will not be built. In case software provides optional support for patented
38 functionality, this optional support will get disabled for this package.
39
40 config BUILD_NLS
41 default n
42 bool "Compile with full language support"
43 help
44 When this option is enabled, packages are built with the full versions of
45 iconv and GNU gettext instead of the default OpenWrt stubs. If uClibc is
46 used, it is also built with locale support.
47
48 config SHADOW_PASSWORDS
49 bool
50 prompt "Enable shadow password support"
51 default y
52 help
53 Enable shadow password support.
54
55 config CLEAN_IPKG
56 bool
57 prompt "Remove ipkg/opkg status data files in final images"
58 default n
59 help
60 This removes all ipkg/opkg status data files from the target directory
61 before building the root filesystem.
62
63 config COLLECT_KERNEL_DEBUG
64 bool
65 prompt "Collect kernel debug information"
66 select KERNEL_DEBUG_INFO
67 default n
68 help
69 This collects debugging symbols from the kernel and all compiled modules.
70 Useful for release builds, so that kernel issues can be debugged offline
71 later.
72
73 comment "Kernel build options"
74
75 source "config/Config-kernel.in"
76
77 comment "Package build options"
78
79 config DEBUG
80 bool
81 prompt "Compile packages with debugging info"
82 default n
83 help
84 Adds -g3 to the CFLAGS.
85
86 config IPV6
87 bool
88 prompt "Enable IPv6 support in packages"
89 default y
90 help
91 Enables IPv6 support in kernel (builtin) and packages.
92
93 config PKG_BUILD_PARALLEL
94 bool
95 prompt "Compile certain packages parallelized"
96 default y
97 help
98 This adds a -jX option to certain packages that are known to behave well
99 for parallel build. By default, the package make processes use the main
100 jobserver, in which case this option only takes effect when you add -jX
101 to the make command.
102
103 If you are unsure, select N.
104
105 config PKG_BUILD_USE_JOBSERVER
106 bool
107 prompt "Use top-level make jobserver for packages"
108 depends on PKG_BUILD_PARALLEL
109 default y
110 help
111 This passes the main make process jobserver fds to package builds,
112 enabling full parallelization across different packages.
113
114 Note that disabling this may overcommit CPU resources depending on the
115 -j level of the main make process, the number of package submake jobs
116 selected below and the number of actual CPUs present.
117 Example: If the main make is passed a -j4 and the submake -j
118 is also set to 4, we may end up with 16 parallel make processes
119 in the worst case.
120
121 config PKG_BUILD_JOBS
122 int
123 prompt "Number of package submake jobs (2-512)"
124 range 2 512
125 default 2
126 depends on PKG_BUILD_PARALLEL && !PKG_BUILD_USE_JOBSERVER
127 help
128 The number of jobs (-jX) to pass to packages submake.
129
130 config PKG_DEFAULT_PARALLEL
131 bool
132 prompt "Parallelize the default package build rule (May break build)"
133 depends on PKG_BUILD_PARALLEL
134 depends on BROKEN
135 default n
136 help
137 Always set the default package build rules to parallel build.
138
139 WARNING: This may break build or kill your cat, as it builds packages
140 with multiple jobs that are probably not tested in a parallel build
141 environment.
142
143 Only say Y if you don't mind fixing broken packages. Before reporting
144 build bugs, set this to N and re-run the build.
145
146 comment "Stripping options"
147
148 choice
149 prompt "Binary stripping method"
150 default USE_STRIP if EXTERNAL_TOOLCHAIN
151 default USE_STRIP if USE_GLIBC
152 default USE_SSTRIP
153 help
154 Select the binary stripping method you wish to use.
155
156 config NO_STRIP
157 bool "none"
158 help
159 This will install unstripped binaries (useful for native
160 compiling/debugging).
161
162 config USE_STRIP
163 bool "strip"
164 help
165 This will install binaries stripped using strip from binutils.
166
167
168 config USE_SSTRIP
169 bool "sstrip"
170 depends on !USE_GLIBC
171 help
172 This will install binaries stripped using sstrip.
173 endchoice
174
175 config STRIP_ARGS
176 string
177 prompt "Strip arguments"
178 depends on USE_STRIP
179 default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
180 default "--strip-all"
181 help
182 Specifies arguments passed to the strip command when stripping binaries.
183
184 config STRIP_KERNEL_EXPORTS
185 bool "Strip unnecessary exports from the kernel image"
186 help
187 Reduces kernel size by stripping unused kernel exports from the kernel
188 image. Note that this might make the kernel incompatible with any kernel
189 modules that were not selected at the time the kernel image was created.
190
191 config USE_MKLIBS
192 bool "Strip unnecessary functions from libraries"
193 help
194 Reduces libraries to only those functions that are necessary for using all
195 selected packages (including those selected as <M>). Note that this will
196 make the system libraries incompatible with most of the packages that are
197 not selected during the build process.
198
199 choice
200 prompt "Preferred standard C++ library"
201 default USE_LIBSTDCXX if USE_GLIBC
202 default USE_UCLIBCXX
203 help
204 Select the preferred standard C++ library for all packages that support this.
205
206 config USE_UCLIBCXX
207 bool "uClibc++"
208
209 config USE_LIBSTDCXX
210 bool "libstdc++"
211 endchoice
212
213 comment "Hardening build options"
214
215 config PKG_CHECK_FORMAT_SECURITY
216 bool
217 prompt "Enable gcc format-security"
218 default y
219 help
220 Add -Wformat -Werror=format-security to the CFLAGS. You can disable
221 this per package by adding PKG_CHECK_FORMAT_SECURITY:=0 in the package
222 Makefile.
223
224 choice
225 prompt "User space Stack-Smashing Protection"
226 depends on USE_MUSL
227 default PKG_CC_STACKPROTECTOR_REGULAR
228 help
229 Enable GCC Stack Smashing Protection (SSP) for userspace applications
230 config PKG_CC_STACKPROTECTOR_NONE
231 bool "None"
232 config PKG_CC_STACKPROTECTOR_REGULAR
233 bool "Regular"
234 select SSP_SUPPORT if !USE_MUSL
235 depends on KERNEL_CC_STACKPROTECTOR_REGULAR
236 config PKG_CC_STACKPROTECTOR_STRONG
237 bool "Strong"
238 select SSP_SUPPORT if !USE_MUSL
239 depends on !GCC_VERSION_4_8
240 depends on KERNEL_CC_STACKPROTECTOR_STRONG
241 endchoice
242
243 choice
244 prompt "Kernel space Stack-Smashing Protection"
245 default KERNEL_CC_STACKPROTECTOR_REGULAR
246 depends on USE_MUSL || !(x86_64 || i386)
247 help
248 Enable GCC Stack-Smashing Protection (SSP) for the kernel
249 config KERNEL_CC_STACKPROTECTOR_NONE
250 bool "None"
251 config KERNEL_CC_STACKPROTECTOR_REGULAR
252 bool "Regular"
253 config KERNEL_CC_STACKPROTECTOR_STRONG
254 depends on !GCC_VERSION_4_8
255 bool "Strong"
256 endchoice
257
258 choice
259 prompt "Enable buffer-overflows detection (FORTIFY_SOURCE)"
260 default PKG_FORTIFY_SOURCE_1
261 help
262 Enable the _FORTIFY_SOURCE macro which introduces additional
263 checks to detect buffer-overflows in the following standard library
264 functions: memcpy, mempcpy, memmove, memset, strcpy, stpcpy,
265 strncpy, strcat, strncat, sprintf, vsprintf, snprintf, vsnprintf,
266 gets. "Conservative" (_FORTIFY_SOURCE set to 1) only introduces
267 checks that shouldn't change the behavior of conforming programs,
268 while "aggressive" (_FORTIFY_SOURCES set to 2) some more checking is
269 added, but some conforming programs might fail.
270 config PKG_FORTIFY_SOURCE_NONE
271 bool "None"
272 config PKG_FORTIFY_SOURCE_1
273 bool "Conservative"
274 config PKG_FORTIFY_SOURCE_2
275 bool "Aggressive"
276 endchoice
277
278 choice
279 prompt "Enable RELRO protection"
280 default PKG_RELRO_FULL
281 help
282 Enable a link-time protection known as RELRO (Relocation Read Only)
283 which helps to protect from certain type of exploitation techniques
284 altering the content of some ELF sections. "Partial" RELRO makes the
285 .dynamic section not writeable after initialization, introducing
286 almost no performance penalty, while "full" RELRO also marks the GOT
287 as read-only at the cost of initializing all of it at startup.
288 config PKG_RELRO_NONE
289 bool "None"
290 config PKG_RELRO_PARTIAL
291 bool "Partial"
292 config PKG_RELRO_FULL
293 bool "Full"
294 endchoice
295
296 endmenu