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