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 || BUILDBOT
  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 BUILDBOT
  23                 bool "Set build defaults for automatic builds (e.g. via buildbot)"
  24                 default n
  25                 help
  26                   This option changes several defaults to be more suitable for
  27                   automatic builds. This includes the following changes:
  28                   - Deleting build directories after compiling (to save space)
  29                   - Enabling per-device rootfs support
  30                   ...
  31
  32         config SIGNED_PACKAGES
  33                 bool "Cryptographically signed package lists"
  34                 default y
  35
  36         comment "General build options"
  37
  38         config DISPLAY_SUPPORT
  39                 bool "Show packages that require graphics support (local or remote)"
  40                 default n
  41
  42         config BUILD_PATENTED
  43                 default y
  44                 bool "Compile with support for patented functionality"
  45                 help
  46                   When this option is disabled, software which provides patented functionality
  47                   will not be built.  In case software provides optional support for patented
  48                   functionality, this optional support will get disabled for this package.
  49
  50         config BUILD_NLS
  51                 default n
  52                 bool "Compile with full language support"
  53                 help
  54                   When this option is enabled, packages are built with the full versions of
  55                   iconv and GNU gettext instead of the default OpenWrt stubs. If uClibc is
  56                   used, it is also built with locale support.
  57
  58         config SHADOW_PASSWORDS
  59                 bool
  60                 default y
  61
  62         config CLEAN_IPKG
  63                 bool
  64                 prompt "Remove ipkg/opkg status data files in final images"
  65                 default n
  66                 help
  67                   This removes all ipkg/opkg status data files from the target directory
  68                   before building the root filesystem.
  69
  70         config INCLUDE_CONFIG
  71                 bool "Include build configuration in firmware" if DEVEL
  72                 default n
  73                 help
  74                   If enabled, config.seed will be stored in /etc/build.config of firmware.
  75
  76         config COLLECT_KERNEL_DEBUG
  77                 bool
  78                 prompt "Collect kernel debug information"
  79                 select KERNEL_DEBUG_INFO
  80                 default BUILDBOT
  81                 help
  82                   This collects debugging symbols from the kernel and all compiled modules.
  83                   Useful for release builds, so that kernel issues can be debugged offline
  84                   later.
  85
  86         comment "Kernel build options"
  87
  88         source "config/Config-kernel.in"
  89
  90         comment "Package build options"
  91
  92         config DEBUG
  93                 bool
  94                 prompt "Compile packages with debugging info"
  95                 default n
  96                 help
  97                   Adds -g3 to the CFLAGS.
  98
  99         config IPV6
 100                 bool
 101                 prompt "Enable IPv6 support in packages"
 102                 default y
 103                 help
 104                   Enables IPv6 support in kernel (builtin) and packages.
 105
 106         comment "Stripping options"
 107
 108         choice
 109                 prompt "Binary stripping method"
 110                 default USE_STRIP   if EXTERNAL_TOOLCHAIN
 111                 default USE_STRIP   if USE_GLIBC
 112                 default USE_SSTRIP
 113                 help
 114                   Select the binary stripping method you wish to use.
 115
 116                 config NO_STRIP
 117                         bool "none"
 118                         help
 119                           This will install unstripped binaries (useful for native
 120                           compiling/debugging).
 121
 122                 config USE_STRIP
 123                         bool "strip"
 124                         help
 125                           This will install binaries stripped using strip from binutils.
 126
 127
 128                 config USE_SSTRIP
 129                         bool "sstrip"
 130                         depends on !USE_GLIBC
 131                         help
 132                           This will install binaries stripped using sstrip.
 133         endchoice
 134
 135         config STRIP_ARGS
 136                 string
 137                 prompt "Strip arguments"
 138                 depends on USE_STRIP
 139                 default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
 140                 default "--strip-all"
 141                 help
 142                   Specifies arguments passed to the strip command when stripping binaries.
 143
 144         config STRIP_KERNEL_EXPORTS
 145                 bool "Strip unnecessary exports from the kernel image"
 146                 help
 147                   Reduces kernel size by stripping unused kernel exports from the kernel
 148                   image.  Note that this might make the kernel incompatible with any kernel
 149                   modules that were not selected at the time the kernel image was created.
 150
 151         config USE_MKLIBS
 152                 bool "Strip unnecessary functions from libraries"
 153                 help
 154                   Reduces libraries to only those functions that are necessary for using all
 155                   selected packages (including those selected as <M>).  Note that this will
 156                   make the system libraries incompatible with most of the packages that are
 157                   not selected during the build process.
 158
 159         choice
 160                 prompt "Preferred standard C++ library"
 161                 default USE_LIBSTDCXX if USE_GLIBC
 162                 default USE_UCLIBCXX
 163                 help
 164                   Select the preferred standard C++ library for all packages that support this.
 165
 166                 config USE_UCLIBCXX
 167                         bool "uClibc++"
 168
 169                 config USE_LIBSTDCXX
 170                         bool "libstdc++"
 171         endchoice
 172
 173         comment "Hardening build options"
 174
 175         config PKG_CHECK_FORMAT_SECURITY
 176                 bool
 177                 prompt "Enable gcc format-security"
 178                 default y
 179                 help
 180                   Add -Wformat -Werror=format-security to the CFLAGS.  You can disable
 181                   this per package by adding PKG_CHECK_FORMAT_SECURITY:=0 in the package
 182                   Makefile.
 183
 184         choice
 185                 prompt "User space Stack-Smashing Protection"
 186                 depends on USE_MUSL
 187                 default PKG_CC_STACKPROTECTOR_REGULAR
 188                 help
 189                   Enable GCC Stack Smashing Protection (SSP) for userspace applications
 190                 config PKG_CC_STACKPROTECTOR_NONE
 191                         bool "None"
 192                 config PKG_CC_STACKPROTECTOR_REGULAR
 193                         bool "Regular"
 194                         select SSP_SUPPORT if !USE_MUSL
 195                         depends on KERNEL_CC_STACKPROTECTOR_REGULAR
 196                 config PKG_CC_STACKPROTECTOR_STRONG
 197                         bool "Strong"
 198                         select SSP_SUPPORT if !USE_MUSL
 199                         depends on !GCC_VERSION_4_8
 200                         depends on KERNEL_CC_STACKPROTECTOR_STRONG
 201         endchoice
 202
 203         choice
 204                 prompt "Kernel space Stack-Smashing Protection"
 205                 default KERNEL_CC_STACKPROTECTOR_REGULAR
 206                 depends on USE_MUSL || !(x86_64 || i386)
 207                 help
 208                   Enable GCC Stack-Smashing Protection (SSP) for the kernel
 209                 config KERNEL_CC_STACKPROTECTOR_NONE
 210                         bool "None"
 211                 config KERNEL_CC_STACKPROTECTOR_REGULAR
 212                         bool "Regular"
 213                 config KERNEL_CC_STACKPROTECTOR_STRONG
 214                         depends on !GCC_VERSION_4_8
 215                         bool "Strong"
 216         endchoice
 217
 218         choice
 219                 prompt "Enable buffer-overflows detection (FORTIFY_SOURCE)"
 220                 default PKG_FORTIFY_SOURCE_1
 221                 help
 222                   Enable the _FORTIFY_SOURCE macro which introduces additional
 223                   checks to detect buffer-overflows in the following standard library
 224                   functions: memcpy, mempcpy, memmove, memset, strcpy, stpcpy,
 225                   strncpy, strcat, strncat, sprintf, vsprintf, snprintf, vsnprintf,
 226                   gets.  "Conservative" (_FORTIFY_SOURCE set to 1) only introduces
 227                   checks that shouldn't change the behavior of conforming programs,
 228                   while "aggressive" (_FORTIFY_SOURCES set to 2) some more checking is
 229                   added, but some conforming programs might fail.
 230                 config PKG_FORTIFY_SOURCE_NONE
 231                         bool "None"
 232                 config PKG_FORTIFY_SOURCE_1
 233                         bool "Conservative"
 234                 config PKG_FORTIFY_SOURCE_2
 235                         bool "Aggressive"
 236         endchoice
 237
 238         choice
 239                 prompt "Enable RELRO protection"
 240                 default PKG_RELRO_FULL
 241                 help
 242                   Enable a link-time protection known as RELRO (Relocation Read Only)
 243                   which helps to protect from certain type of exploitation techniques
 244                   altering the content of some ELF sections. "Partial" RELRO makes the
 245                   .dynamic section not writeable after initialization, introducing
 246                   almost no performance penalty, while "full" RELRO also marks the GOT
 247                   as read-only at the cost of initializing all of it at startup.
 248                 config PKG_RELRO_NONE
 249                         bool "None"
 250                 config PKG_RELRO_PARTIAL
 251                         bool "Partial"
 252                 config PKG_RELRO_FULL
 253                         bool "Full"
 254         endchoice
 255
 256 endmenu