389 lines
11 KiB
Plaintext
389 lines
11 KiB
Plaintext
mainmenu "ArtInChip Luban SDK Configuration"
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config BR2_HAVE_DOT_CONFIG
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bool
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default y
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config BR2_JLEVEL
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int # "Number of jobs to run simultaneously (0 for auto)"
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default "0" if BR2_MAKE_WITH_MULTI_THREAD
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default "1" if !BR2_MAKE_WITH_MULTI_THREAD
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help
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Number of jobs to run simultaneously. If 0, determine
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automatically according to number of CPUs on the host system.
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config BR2_HOSTARCH
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string
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option env="HOSTARCH"
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config BR2_BASE_DIR
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string
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option env="BASE_DIR"
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# br2-external paths definitions
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source "$BR2_BASE_DIR/.br2-external.in.paths"
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config BR2_DEFCONFIG_FROM_ENV
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string
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option env="BR2_DEFCONFIG"
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config BR2_DEFCONFIG
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string
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default BR2_DEFCONFIG_FROM_ENV if BR2_DEFCONFIG_FROM_ENV != ""
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default "$(CONFIG_DIR)/defconfig"
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help
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When running 'make savedefconfig', the defconfig file will be
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saved in this location.
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config BR2_DL_DIR
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string
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default "$(TOPDIR)/dl"
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help
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Directory to store all the source files that we need to fetch.
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If the Linux shell environment has defined the BR2_DL_DIR
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environment variable, then this overrides this configuration
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item.
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The directory is organized with a subdirectory for each
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package. Each package has its own $(LIBFOO_DL_DIR) variable
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that can be used to find the correct path.
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The default is $(TOPDIR)/dl
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config BR2_PACKAGES_DIR
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string
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default "$(TOPDIR)/source"
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config BR2_PREBUILT_DIR
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string
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default "$(TOPDIR)/prebuilt"
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config BR2_HOST_DIR
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string
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default "$(BASE_DIR)/host"
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help
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Directory to store all the binary files that are built for the
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host. This includes the cross compilation toolchain when
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building the internal buildroot toolchain.
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The default is $(BASE_DIR)/host
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config BR2_STATIC_LIBS
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bool # "static only"
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default y if !BR2_BINFMT_SUPPORTS_SHARED
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help
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Build and use only static libraries. No shared libraries will
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be installed on the target. This potentially increases your
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code size and should only be used if you know what you are
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doing. Note that some packages may not be available when this
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option is enabled, due to their need for dynamic library
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support.
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config BR2_SHARED_LIBS
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bool # "shared only"
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default n
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depends on BR2_BINFMT_SUPPORTS_SHARED
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help
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Build and use only shared libraries. This is the recommended
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solution as it saves space and build time.
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config BR2_SHARED_STATIC_LIBS
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bool # "both static and shared"
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default y
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depends on BR2_BINFMT_SUPPORTS_SHARED
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help
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Build both shared and static libraries, but link executables
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dynamically. While building both shared and static libraries
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take more time and more disk space, having static libraries
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may be useful to link some of the applications statically.
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config BR2_WGET
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string # "Wget command"
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default "wget --passive-ftp -nd -t 3"
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config BR2_SVN
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string # "Subversion (svn) command"
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default "svn --non-interactive"
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config BR2_BZR
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string # "Bazaar (bzr) command"
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default "bzr"
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config BR2_GIT
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string # "Git command"
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default "git"
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config BR2_CVS
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string # "CVS command"
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default "cvs"
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config BR2_LOCALFILES
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string # "Local files retrieval command"
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default "cp"
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config BR2_SCP
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string # "Secure copy (scp) command"
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default "scp"
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config BR2_OPENSSH
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string # "OpenSSH "
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default "ssh"
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config BR2_HG
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string # "Mercurial (hg) command"
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default "hg"
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config BR2_ZCAT
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string # "zcat command"
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default "gzip -d -c"
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help
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Command to be used to extract a gzip'ed file to stdout. zcat
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is identical to gunzip -c except that the former may not be
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available on your system.
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Default is "gzip -d -c"
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Other possible values include "gunzip -c" or "zcat".
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config BR2_BZCAT
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string # "bzcat command"
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default "bzcat"
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help
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Command to be used to extract a bzip2'ed file to stdout.
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bzcat is identical to bunzip2 -c except that the former may
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not be available on your system.
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Default is "bzcat"
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Other possible values include "bunzip2 -c" or "bzip2 -d -c".
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config BR2_XZCAT
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string # "xzcat command"
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default "xzcat"
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help
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Command to be used to extract a xz'ed file to stdout.
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Default is "xzcat"
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config BR2_LZCAT
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string # "lzcat command"
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default "lzip -d -c"
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help
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Command to be used to extract a lzip'ed file to stdout.
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Default is "lzip -d -c"
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config BR2_TAR_OPTIONS
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string # "Tar options"
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default ""
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help
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Options to pass to tar when extracting the sources.
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E.g. " -v --exclude='*.svn*'" to exclude all .svn internal
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files and to be verbose.
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source package/arch/Config.in
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source package/toolchain/Config.in
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config BR2_HOST_GCC_AT_LEAST_4_9
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bool
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default y
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config BR2_HOST_GCC_AT_LEAST_5
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bool
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default y
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select BR2_HOST_GCC_AT_LEAST_4_9
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config BR2_HOST_GCC_AT_LEAST_6
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bool
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default y
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select BR2_HOST_GCC_AT_LEAST_5
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menu "Build options"
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config BR2_MAKE_WITH_MULTI_THREAD
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bool "Make with multi-jobs (make -j0)"
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default y
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help
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Select it to to set make -j0, the number of jobs is determined
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automatically according to number of CPUs on the host system.
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Otherwise it make with single job.
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choice
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prompt "gcc optimization level"
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default BR2_OPTIMIZE_S
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help
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Set the optimization level for gcc
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config BR2_OPTIMIZE_0
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bool "optimization level 0"
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help
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Do not optimize.
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config BR2_OPTIMIZE_1
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bool "optimization level 1"
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help
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Optimize. Optimizing compilation takes somewhat more time, and
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a lot more memory for a large function. With -O, the compiler
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tries to reduce code size and execution time, without
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performing any optimizations that take a great deal of
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compilation time. -O turns on the following optimization
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flags: -fdefer-pop -fdelayed-branch -fguess-branch-probability
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-fcprop-registers -floop-optimize -fif-conversion
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-fif-conversion2 -ftree-ccp -ftree-dce -ftree-dominator-opts
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-ftree-dse -ftree-ter -ftree-lrs -ftree-sra -ftree-copyrename
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-ftree-fre -ftree-ch -funit-at-a-time -fmerge-constants. -O
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also turns on -fomit-frame-pointer on machines where doing so
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does not interfere with debugging.
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config BR2_OPTIMIZE_2
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bool "optimization level 2"
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help
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Optimize even more. GCC performs nearly all supported
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optimizations that do not involve a space-speed tradeoff. The
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compiler does not perform loop unrolling or function inlining
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when you specify -O2. As compared to -O, this option increases
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both compilation time and the performance of the generated
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code. -O2 turns on all optimization flags specified by -O. It
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also turns on the following optimization flags:
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-fthread-jumps -fcrossjumping -foptimize-sibling-calls
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-fcse-follow-jumps -fcse-skip-blocks -fgcse -fgcse-lm
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-fexpensive-optimizations -fstrength-reduce
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-frerun-cse-after-loop -frerun-loop-opt -fcaller-saves
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-fpeephole2 -fschedule-insns -fschedule-insns2
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-fsched-interblock -fsched-spec -fregmove -fstrict-aliasing
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-fdelete-null-pointer-checks -freorder-blocks
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-freorder-functions -falign-functions -falign-jumps
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-falign-loops -falign-labels -ftree-vrp -ftree-pre. Please
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note the warning under -fgcse about invoking -O2 on programs
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that use computed gotos.
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config BR2_OPTIMIZE_3
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bool "optimization level 3"
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help
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Optimize yet more. -O3 turns on all optimizations specified by
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-O2 and also turns on the -finline-functions, -funswitch-loops
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and -fgcse-after-reload options.
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config BR2_OPTIMIZE_G
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bool "optimize for debugging"
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depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
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help
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Optimize for debugging. This enables optimizations that do not
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interfere with debugging. It should be the optimization level
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of choice for the standard edit-compile-debug cycle, offering
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a reasonable level of optimization while maintaining fast
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compilation and a good debugging experience.
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config BR2_OPTIMIZE_S
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bool "optimize for size"
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help
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Optimize for size. -Os enables all -O2 optimizations that do
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not typically increase code size. It also performs further
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optimizations designed to reduce code size. -Os disables the
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following optimization flags: -falign-functions -falign-jumps
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-falign-loops -falign-labels -freorder-blocks
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-freorder-blocks-and-partition -fprefetch-loop-arrays
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-ftree-vect-loop-version
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This is the default.
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config BR2_OPTIMIZE_FAST
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bool "optimize for fast (may break packages!)"
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depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
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help
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Optimize for fast. Disregard strict standards
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compliance. -Ofast enables all -O3 optimizations. It also
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enables optimizations that are not valid for all
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standard-compliant programs, so be careful, as it may break
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some packages. It turns on -ffast-math and the
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Fortran-specific -fstack-arrays, unless -fmax-stack-var-size
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is specified, and -fno-protect-parens.
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endchoice
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config BR2_ENABLE_DEBUG
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bool "build packages with debugging symbols"
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help
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Build packages with debugging symbols enabled. All libraries
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and binaries in the 'staging' directory will have debugging
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symbols, which allows remote debugging even if libraries and
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binaries are stripped on the target. Whether libraries and
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binaries are stripped on the target is controlled by the
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BR2_STRIP_* options below.
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if BR2_ENABLE_DEBUG
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choice
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prompt "gcc debug level"
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default BR2_DEBUG_2
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help
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Set the debug level for gcc
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config BR2_DEBUG_1
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bool "debug level 1"
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help
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Debug level 1 produces minimal information, enough for making
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backtraces in parts of the program that you don't plan to
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debug. This includes descriptions of functions and external
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variables, but no information about local variables and no
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line numbers.
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config BR2_DEBUG_2
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bool "debug level 2"
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help
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The default gcc debug level is 2
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config BR2_DEBUG_3
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bool "debug level 3"
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help
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Level 3 includes extra information, such as all the macro
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definitions present in the program. Some debuggers support
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macro expansion when you use -g3.
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endchoice
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endif
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config BR2_STRIP_strip
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bool "strip target binaries"
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default y
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depends on !BR2_PACKAGE_HOST_ELF2FLT
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help
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Binaries and libraries in the target filesystem will be
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stripped using the normal 'strip' command. This allows to save
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space, mainly by removing debugging symbols. Debugging symbols
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on the target are needed for native debugging, but not when
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remote debugging is used.
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config BR2_STRIP_EXCLUDE_FILES
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string "executables that should not be stripped"
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default ""
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depends on BR2_STRIP_strip
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help
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You may specify a space-separated list of binaries and
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libraries here that should not be stripped on the target.
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config BR2_STRIP_EXCLUDE_DIRS
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string "directories that should be skipped when stripping"
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default ""
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depends on BR2_STRIP_strip
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help
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You may specify a space-separated list of directories that
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should be skipped when stripping. Binaries and libraries in
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these directories will not be touched. The directories should
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be specified relative to the target directory, without leading
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slash.
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config BR2_FORCE_BUILD_FROM_SOURCE
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bool "Force all packages build from source code"
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default n
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config BR2_GENERATE_PREBUILT_TARBALL
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bool "Generate prebuilt tarball while building package from source code"
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default n
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endmenu
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source package/system/Config.in
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source package/fs/Config.in
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menu "Bootloader"
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source package/opensbi/Config.in
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source package/uboot/Config.in
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endmenu
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source package/linux/Config.in
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source package/artinchip/Config.in
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source package/vendor/Config.in
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source package/third-party/Config.in
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source package/third-party/Config.in.host
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source package/firmware/Config.in
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# br2-external menus definitions
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source "$BR2_BASE_DIR/.br2-external.in.menus"
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