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openwrt/config/Config-build.in
Paul Spooren 881ed09ee6 build: create JSON files containing image info 
The JSON info files contain details about the created firmware images
per device and are stored next to the created images.

The JSON files are stored as "$(IMAGE_PREFIX).json" and contain some
device/image meta data as well as a list of created firmware images.

An example of openwrt-ramips-rt305x-aztech_hw550-3g.json

    {
      "id": "aztech_hw550-3g",
      "image_prefix": "openwrt-ramips-rt305x-aztech_hw550-3g",
      "images": [
        {
          "name": "openwrt-ramips-rt305x-aztech_hw550-3g-squashfs-sysupgrade.bin",
          "sha256": "db2b34b0ec4a83d9bf612cf66fab0dc3722b191cb9bedf111e5627a4298baf20",
          "type": "sysupgrade"
        }
      ],
      "metadata_version": 1,
      "supported_devices": [
        "aztech,hw550-3g",
        "hw550-3g"
      ],
      "target": "ramips/rt305x",
      "titles": [
        {
          "model": "HW550-3G",
          "vendor": "Aztech"
        },
        {
          "model": "ALL0239-3G",
          "vendor": "Allnet"
        }
      ],
      "version_commit": "r10920+123-0cc87b3bac",
      "version_number": "SNAPSHOT"
    }

Signed-off-by: Paul Spooren <mail@aparcar.org>
2019-09-29 13:51:28 +02:00

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# Copyright (C) 2006-2013 OpenWrt.org
# Copyright (C) 2016 LEDE Project
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
menu "Global build settings"
config JSON_ADD_IMAGE_INFO
bool "Create JSON info files per build image"
default BUILDBOT
help
The JSON info files contain information about the device and
build images, stored next to the firmware images.
config ALL_NONSHARED
bool "Select all target specific packages by default"
select ALL_KMODS
default BUILDBOT
config ALL_KMODS
bool "Select all kernel module packages by default"
config ALL
bool "Select all userspace packages by default"
select ALL_KMODS
select ALL_NONSHARED
config BUILDBOT
bool "Set build defaults for automatic builds (e.g. via buildbot)"
default n
help
This option changes several defaults to be more suitable for
automatic builds. This includes the following changes:
- Deleting build directories after compiling (to save space)
- Enabling per-device rootfs support
...
config SIGNED_PACKAGES
bool "Cryptographically signed package lists"
default y
config SIGNATURE_CHECK
bool "Enable signature checking in opkg"
default SIGNED_PACKAGES
comment "General build options"
config TESTING_KERNEL
bool "Use the testing kernel version"
depends on HAS_TESTING_KERNEL
default n
help
If the target supports a newer kernel version than the default,
you can use this config option to enable it
config DISPLAY_SUPPORT
bool "Show packages that require graphics support (local or remote)"
default n
config BUILD_PATENTED
default n
bool "Compile with support for patented functionality"
help
When this option is disabled, software which provides patented functionality
will not be built. In case software provides optional support for patented
functionality, this optional support will get disabled for this package.
config BUILD_NLS
default n
bool "Compile with full language support"
help
When this option is enabled, packages are built with the full versions of
iconv and GNU gettext instead of the default OpenWrt stubs. If uClibc is
used, it is also built with locale support.
config SHADOW_PASSWORDS
bool
default y
config CLEAN_IPKG
bool
prompt "Remove ipkg/opkg status data files in final images"
default n
help
This removes all ipkg/opkg status data files from the target directory
before building the root filesystem.
config IPK_FILES_CHECKSUMS
bool
prompt "Record files checksums in package metadata"
default n
help
This makes file checksums part of package metadata. It increases size
but provides you with pkg_check command to check for flash coruptions.
config INCLUDE_CONFIG
bool "Include build configuration in firmware" if DEVEL
default n
help
If enabled, config.buildinfo will be stored in /etc/build.config of firmware.
config COLLECT_KERNEL_DEBUG
bool
prompt "Collect kernel debug information"
select KERNEL_DEBUG_INFO
default BUILDBOT
help
This collects debugging symbols from the kernel and all compiled modules.
Useful for release builds, so that kernel issues can be debugged offline
later.
menu "Kernel build options"
source "config/Config-kernel.in"
endmenu
comment "Package build options"
config DEBUG
bool
prompt "Compile packages with debugging info"
default n
help
Adds -g3 to the CFLAGS.
config IPV6
bool
prompt "Enable IPv6 support in packages"
default y
help
Enables IPv6 support in kernel (builtin) and packages.
comment "Stripping options"
choice
prompt "Binary stripping method"
default USE_STRIP if EXTERNAL_TOOLCHAIN
default USE_STRIP if USE_GLIBC
default USE_SSTRIP
help
Select the binary stripping method you wish to use.
config NO_STRIP
bool "none"
help
This will install unstripped binaries (useful for native
compiling/debugging).
config USE_STRIP
bool "strip"
help
This will install binaries stripped using strip from binutils.
config USE_SSTRIP
bool "sstrip"
depends on !USE_GLIBC
help
This will install binaries stripped using sstrip.
endchoice
config STRIP_ARGS
string
prompt "Strip arguments"
depends on USE_STRIP
default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
default "--strip-all"
help
Specifies arguments passed to the strip command when stripping binaries.
config STRIP_KERNEL_EXPORTS
bool "Strip unnecessary exports from the kernel image"
help
Reduces kernel size by stripping unused kernel exports from the kernel
image. Note that this might make the kernel incompatible with any kernel
modules that were not selected at the time the kernel image was created.
config USE_MKLIBS
bool "Strip unnecessary functions from libraries"
help
Reduces libraries to only those functions that are necessary for using all
selected packages (including those selected as <M>). Note that this will
make the system libraries incompatible with most of the packages that are
not selected during the build process.
choice
prompt "Preferred standard C++ library"
default USE_LIBSTDCXX if USE_GLIBC
default USE_UCLIBCXX
help
Select the preferred standard C++ library for all packages that support this.
config USE_UCLIBCXX
bool "uClibc++"
config USE_LIBSTDCXX
bool "libstdc++"
endchoice
comment "Hardening build options"
config PKG_CHECK_FORMAT_SECURITY
bool
prompt "Enable gcc format-security"
default y
help
Add -Wformat -Werror=format-security to the CFLAGS. You can disable
this per package by adding PKG_CHECK_FORMAT_SECURITY:=0 in the package
Makefile.
config PKG_ASLR_PIE
bool
prompt "User space ASLR PIE compilation"
select BUSYBOX_DEFAULT_PIE
default n
help
Add -fPIC to CFLAGS and -specs=hardened-build-ld to LDFLAGS.
This enables package build as Position Independent Executables (PIE)
to protect against "return-to-text" attacks. This belongs to the
feature of Address Space Layout Randomisation (ASLR), which is
implemented by the kernel and the ELF loader by randomising the
location of memory allocations. This makes memory addresses harder
to predict when an attacker is attempting a memory-corruption exploit.
You can disable this per package by adding PKG_ASLR_PIE:=0 in the package
Makefile.
choice
prompt "User space Stack-Smashing Protection"
depends on USE_MUSL
default PKG_CC_STACKPROTECTOR_REGULAR
help
Enable GCC Stack Smashing Protection (SSP) for userspace applications
config PKG_CC_STACKPROTECTOR_NONE
bool "None"
config PKG_CC_STACKPROTECTOR_REGULAR
bool "Regular"
select GCC_LIBSSP if !USE_MUSL
depends on KERNEL_CC_STACKPROTECTOR_REGULAR
config PKG_CC_STACKPROTECTOR_STRONG
bool "Strong"
select GCC_LIBSSP if !USE_MUSL
depends on !GCC_VERSION_4_8
depends on KERNEL_CC_STACKPROTECTOR_STRONG
endchoice
choice
prompt "Kernel space Stack-Smashing Protection"
default KERNEL_CC_STACKPROTECTOR_REGULAR
depends on USE_MUSL || !(x86_64 || i386)
help
Enable GCC Stack-Smashing Protection (SSP) for the kernel
config KERNEL_CC_STACKPROTECTOR_NONE
bool "None"
config KERNEL_CC_STACKPROTECTOR_REGULAR
bool "Regular"
config KERNEL_CC_STACKPROTECTOR_STRONG
depends on !GCC_VERSION_4_8
bool "Strong"
endchoice
config KERNEL_STACKPROTECTOR
bool
default KERNEL_CC_STACKPROTECTOR_REGULAR || KERNEL_CC_STACKPROTECTOR_STRONG
config KERNEL_STACKPROTECTOR_STRONG
bool
default KERNEL_CC_STACKPROTECTOR_STRONG
choice
prompt "Enable buffer-overflows detection (FORTIFY_SOURCE)"
default PKG_FORTIFY_SOURCE_1
help
Enable the _FORTIFY_SOURCE macro which introduces additional
checks to detect buffer-overflows in the following standard library
functions: memcpy, mempcpy, memmove, memset, strcpy, stpcpy,
strncpy, strcat, strncat, sprintf, vsprintf, snprintf, vsnprintf,
gets. "Conservative" (_FORTIFY_SOURCE set to 1) only introduces
checks that shouldn't change the behavior of conforming programs,
while "aggressive" (_FORTIFY_SOURCES set to 2) some more checking is
added, but some conforming programs might fail.
config PKG_FORTIFY_SOURCE_NONE
bool "None"
config PKG_FORTIFY_SOURCE_1
bool "Conservative"
config PKG_FORTIFY_SOURCE_2
bool "Aggressive"
endchoice
choice
prompt "Enable RELRO protection"
default PKG_RELRO_FULL
help
Enable a link-time protection known as RELRO (Relocation Read Only)
which helps to protect from certain type of exploitation techniques
altering the content of some ELF sections. "Partial" RELRO makes the
.dynamic section not writeable after initialization, introducing
almost no performance penalty, while "full" RELRO also marks the GOT
as read-only at the cost of initializing all of it at startup.
config PKG_RELRO_NONE
bool "None"
config PKG_RELRO_PARTIAL
bool "Partial"
config PKG_RELRO_FULL
bool "Full"
endchoice
endmenu
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