menu "Global build settings"
+ config ALL_KMODS
+ bool "Select all kernel module packages by default"
+ default ALL
+
config ALL
- bool "Select all packages by default"
+ bool "Select all userspace packages by default"
default n
+ config SIGNED_PACKAGES
+ bool "Cryptographically signed package lists"
+ default y
+
comment "General build options"
config DISPLAY_SUPPORT
default y
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.
+ 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 BUILD_STATIC_TOOLS
- default n
- bool "Attempt to link host utilities statically"
- help
- Linking host utilities like sed or firmware-utils statically increases the portability of the
- generated ImageBuilder and SDK tarballs, however it may fail on some Linux distributions.
+ 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
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 fs
+ This removes all ipkg/opkg status data files from the target directory
+ before building the root filesystem.
config COLLECT_KERNEL_DEBUG
bool
default n
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.
+ Useful for release builds, so that kernel issues can be debugged offline
+ later.
comment "Kernel build options"
prompt "Compile packages with debugging info"
default n
help
- Adds -g3 to the CFLAGS
+ Adds -g3 to the CFLAGS.
config IPV6
bool
prompt "Enable IPv6 support in packages"
default y
help
- Enable IPV6 support in packages (passes --enable-ipv6 to configure scripts).
+ Enable IPv6 support in packages (passes --enable-ipv6 to configure scripts).
config PKG_BUILD_PARALLEL
bool
prompt "Compile certain packages parallelized"
default y
help
- This adds a -jX option to certain packages that are known to
- behave well for parallel build. By default the package make processes
- use the main jobserver, in which case this option only takes effect
- when you add -jX to the make command.
+ This adds a -jX option to certain packages that are known to behave well
+ for parallel build. By default, the package make processes use the main
+ jobserver, in which case this option only takes effect when you add -jX
+ to the make command.
If you are unsure, select N.
default y
help
This passes the main make process jobserver fds to package builds,
- enabling full parallelization across different packages
+ enabling full parallelization across different packages.
Note that disabling this may overcommit CPU resources depending on the
- -j level of the main make process, the number of package
- submake jobs selected below and the number of actual CPUs present.
+ -j level of the main make process, the number of package submake jobs
+ selected below and the number of actual CPUs present.
Example: If the main make is passed a -j4 and the submake -j
is also set to 4, we may end up with 16 parallel make processes
in the worst case.
-
config PKG_BUILD_JOBS
int
prompt "Number of package submake jobs (2-512)"
help
Always set the default package build rules to parallel build.
- WARNING: This may break build or kill your cat, as it builds
- packages with multiple jobs that are probably not tested in
- a parallel build environment.
+ WARNING: This may break build or kill your cat, as it builds packages
+ with multiple jobs that are probably not tested in a parallel build
+ environment.
- Only say Y, if you don't mind fixing broken packages.
- Before reporting build bugs, set this to N and re-run the build.
+ Only say Y if you don't mind fixing broken packages. Before reporting
+ build bugs, set this to N and re-run the build.
comment "Stripping options"
choice
prompt "Binary stripping method"
default USE_STRIP if EXTERNAL_TOOLCHAIN
- default USE_STRIP if USE_GLIBC || USE_EGLIBC || USE_MUSL
+ default USE_STRIP if USE_GLIBC || USE_MUSL
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)
+ 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
+ This will install binaries stripped using strip from binutils.
config USE_SSTRIP
bool "sstrip"
depends on !DEBUG
depends on !USE_GLIBC
- depends on !USE_EGLIBC
help
- This will install binaries stripped using sstrip
+ This will install binaries stripped using sstrip.
endchoice
config STRIP_ARGS
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
+ 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
+ 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
+ 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_EGLIBC
+ default USE_LIBSTDCXX if USE_GLIBC
default USE_UCLIBCXX
help
Select the preferred standard C++ library for all packages that support this.
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.
+
+ choice
+ prompt "User space Stack-Smashing Protection"
+ 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 SSP_SUPPORT if !USE_MUSL
+ depends on KERNEL_CC_STACKPROTECTOR_REGULAR
+ config PKG_CC_STACKPROTECTOR_STRONG
+ bool "Strong"
+ select SSP_SUPPORT if !USE_MUSL
+ depends on GCC_VERSION_4_9_LINARO
+ depends on KERNEL_CC_STACKPROTECTOR_STRONG
+ endchoice
+
+ choice
+ prompt "Kernel space Stack-Smashing Protection"
+ default KERNEL_CC_STACKPROTECTOR_REGULAR
+ 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_9_LINARO
+ bool "Strong"
+ endchoice
+
+ choice
+ prompt "Enable buffer-overflows detection (FORTIFY_SOURCE)"
+ 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
projects / openwrt / openwrt.git / blobdiff