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