| # |
| |
| mainmenu "Buildroot2 Configuration" |
| |
| config BR2_HAVE_DOT_CONFIG |
| bool |
| default y |
| |
| config BR2_VERSION |
| string |
| default "2010.08-rc1" |
| |
| source "target/Config.in.arch" |
| source "target/device/Config.in" |
| |
| menu "Build options" |
| |
| menu "Commands" |
| |
| config BR2_WGET |
| string "Wget command" |
| default "wget --passive-ftp -nd" |
| |
| config BR2_SVN_CO |
| string "Subversion (svn) command to download source tree" |
| default "svn co" |
| |
| config BR2_SVN_UP |
| string "Subversion (svn) command to update source tree" |
| default "svn up" |
| |
| config BR2_BZR_CO |
| string "Bazaar (bzr) command to download source tree" |
| default "bzr co" |
| |
| config BR2_BZR_UP |
| string "Bazaar (bzr) command to update source tree" |
| default "bzr up" |
| |
| config BR2_GIT |
| string "Git command to download source tree" |
| default "git clone" |
| |
| config BR2_ZCAT |
| string "zcat command" |
| default "gzip -d -c" |
| help |
| Command to be used to extract a gzip'ed file to stdout. |
| zcat is identical to gunzip -c except that the former may |
| not be available on your system. |
| Default is "gzip -d -c" |
| Other possible values include "gunzip -c" or "zcat". |
| |
| config BR2_BZCAT |
| string "bzcat command" |
| default "bzcat" |
| help |
| Command to be used to extract a bzip2'ed file to stdout. |
| bzcat is identical to bunzip2 -c except that the former may |
| not be available on your system. |
| Default is "bzcat" |
| Other possible values include "bunzip2 -c" or "bzip2 -d -c". |
| |
| config BR2_TAR_OPTIONS |
| string "Tar options" |
| default "" |
| help |
| Options to pass to tar when extracting the sources. |
| E.g. " -v --exclude='*.svn*'" to exclude all .svn internal files |
| and to be verbose. |
| |
| endmenu |
| |
| config BR2_DL_DIR |
| string "Download dir" |
| default "$(TOPDIR)/dl" |
| help |
| Directory to store all the source files that we need to fetch. |
| If the Linux shell environment has defined the BUILDROOT_DL_DIR |
| environment variable, then this overrides this configuration item. |
| |
| The default is $(TOPDIR)/dl |
| |
| config BR2_STAGING_DIR |
| string "Toolchain and header file location?" |
| default "$(BASE_DIR)/staging" |
| help |
| This is the location where the toolchain will be installed. The |
| toolchain will not work if it is moved from this location. |
| Therefore, if you wish to package up a uClibc toolchain, it is |
| important that is is set to the final location where the toolchain |
| will be used. |
| |
| Most people will leave this set to the default value of |
| "$(BASE_DIR)/staging". |
| |
| source "target/device/Config.in.mirrors" |
| |
| config BR2_JLEVEL |
| int "Number of jobs to run simultaneously" |
| default "2" |
| help |
| Number of jobs to run simultaneously |
| |
| config BR2_DEPRECATED |
| bool "Show packages that are deprecated or obsolete" |
| help |
| This option hides outdated/obsolete versions of packages. |
| |
| config BR2_ENABLE_DEBUG |
| bool "build packages with debugging symbols" |
| select BR2_PACKAGE_GDB_SERVER |
| help |
| Build packages with debugging symbols |
| enabled |
| |
| if BR2_ENABLE_DEBUG |
| choice |
| prompt "gcc debug level" |
| default BR2_DEBUG_2 |
| help |
| Set the debug level for gcc |
| |
| config BR2_DEBUG_1 |
| bool "debug level 1" |
| help |
| Debug level 1 produces minimal information, enough |
| for making backtraces in parts of the program that |
| you don't plan to debug. This includes descriptions |
| of functions and external variables, but no information |
| about local variables and no line numbers. |
| |
| config BR2_DEBUG_2 |
| bool "debug level 2" |
| help |
| The default gcc debug level is 2 |
| |
| config BR2_DEBUG_3 |
| bool "debug level 3" |
| help |
| Level 3 includes extra information, such as all the |
| macro definitions present in the program. Some debuggers |
| support macro expansion when you use -g3. |
| endchoice |
| endif |
| |
| choice |
| prompt "strip" |
| default BR2_STRIP_strip |
| help |
| Select whether to strip binaries and libraries for the target |
| or not. |
| strip is the normal strip command |
| sstrip is a strip that discards more than the normal strip |
| none do not strip (only for debugging!) |
| |
| config BR2_STRIP_strip |
| bool "strip" |
| depends on !BR2_ENABLE_DEBUG && !BR2_ELF2FLT |
| help |
| strip is the normal strip command |
| |
| config BR2_STRIP_sstrip |
| bool "sstrip" |
| select BR2_PACKAGE_SSTRIP_HOST |
| depends on !BR2_ENABLE_DEBUG && !BR2_ELF2FLT |
| help |
| sstrip is a strip that discards more than the normal strip |
| |
| config BR2_STRIP_none |
| bool "none" |
| help |
| none do not strip (only for debugging!) |
| endchoice |
| |
| choice |
| prompt "gcc optimization level" |
| default BR2_OPTIMIZE_S |
| help |
| Set the optimization level for gcc |
| |
| config BR2_OPTIMIZE_0 |
| bool "optimization level 0" |
| help |
| Do not optimize. This is the default. |
| |
| config BR2_OPTIMIZE_1 |
| bool "optimization level 1" |
| help |
| Optimize. Optimizing compilation takes somewhat more time, |
| and a lot more memory for a large function. With -O, the |
| compiler tries to reduce code size and execution time, |
| without performing any optimizations that take a great deal |
| of compilation time. -O turns on the following optimization |
| flags: -fdefer-pop -fdelayed-branch -fguess-branch-probability |
| -fcprop-registers -floop-optimize -fif-conversion |
| -fif-conversion2 -ftree-ccp -ftree-dce -ftree-dominator-opts |
| -ftree-dse -ftree-ter -ftree-lrs -ftree-sra -ftree-copyrename |
| -ftree-fre -ftree-ch -funit-at-a-time -fmerge-constants |
| -O also turns on -fomit-frame-pointer on machines where doing |
| so does not interfere with debugging. |
| |
| config BR2_OPTIMIZE_2 |
| bool "optimization level 2" |
| help |
| Optimize even more. GCC performs nearly all supported optimizations |
| that do not involve a space-speed tradeoff. The compiler does not |
| perform loop unrolling or function inlining when you specify -O2. |
| As compared to -O, this option increases both compilation time and |
| the performance of the generated code. -O2 turns on all optimization |
| flags specified by -O. It also turns on the following optimization |
| flags: -fthread-jumps -fcrossjumping -foptimize-sibling-calls |
| -fcse-follow-jumps -fcse-skip-blocks -fgcse -fgcse-lm |
| -fexpensive-optimizations -fstrength-reduce -frerun-cse-after-loop |
| -frerun-loop-opt -fcaller-saves -fpeephole2 -fschedule-insns |
| -fschedule-insns2 -fsched-interblock -fsched-spec -fregmove |
| -fstrict-aliasing -fdelete-null-pointer-checks -freorder-blocks |
| -freorder-functions -falign-functions -falign-jumps -falign-loops |
| -falign-labels -ftree-vrp -ftree-pre |
| Please note the warning under -fgcse about invoking -O2 on programs |
| that use computed gotos. |
| |
| config BR2_OPTIMIZE_3 |
| bool "optimization level 3" |
| help |
| Optimize yet more. -O3 turns on all optimizations specified by -O2 |
| and also turns on the -finline-functions, -funswitch-loops and |
| -fgcse-after-reload options. |
| |
| config BR2_OPTIMIZE_S |
| bool "optimize for size" |
| help |
| Optimize for size. -Os enables all -O2 optimizations that do not |
| typically increase code size. It also performs further optimizations |
| designed to reduce code size. -Os disables the following optimization |
| flags: -falign-functions -falign-jumps -falign-loops -falign-labels |
| -freorder-blocks -freorder-blocks-and-partition -fprefetch-loop-arrays |
| -ftree-vect-loop-version |
| |
| endchoice |
| |
| config BR2_PREFER_STATIC_LIB |
| bool "prefer static libraries" |
| help |
| Where possible, build and use static libraries for the target. |
| This potentially increases your code size and should only be |
| used if you know what you do. |
| The default is to build dynamic libraries and use those on |
| the target filesystem. |
| |
| WARNING: This is highly experimental at the moment. |
| |
| config BR2_HAVE_DOCUMENTATION |
| bool "documentation on the target" |
| help |
| Install the documentation, including manual pages and info |
| pages, on the target. |
| If you say n here, your target will not contain any |
| documentation. |
| |
| config BR2_HAVE_DEVFILES |
| bool "development files in target filesystem" |
| help |
| Install headers and static libraries in the |
| target filesystem |
| |
| menu "Advanced" |
| |
| config BR2_CONFIG_CACHE |
| bool "Use a central configure cache file" |
| default y |
| help |
| This determines if a central config cache is used by |
| packages, reducing the configure time for packages as each |
| one caches its findings. |
| |
| endmenu |
| |
| endmenu |
| |
| source "toolchain/Config.in" |
| |
| source "package/Config.in" |
| |
| source "fs/Config.in" |
| |
| source "boot/Config.in" |
| |
| source "linux/Config.in" |
