[Buildroot] unrecognised command line option Error

suhas dumbhare s_dumbhare at yahoo.com
Thu Aug 20 09:30:51 UTC 2009


Hello,
>I apologaiesd to my mistake.



Hello,
>  command line option "-mfdpic"

-mfdpic is a gcc option specific to the FRV architecture. So it's
strange that uClibc uses it if you configured Buildroot for ARM.

Could you post Buildroot configuration file. It is named .config in the
main Buildroot directory.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
|                                    .config  File                                                         |
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
#

mainmenu "Buildroot2 Configuration"

config BR2_HAVE_DOT_CONFIG
    bool
    default y

config BR2_VERSION
    string
    default "2009.05"

source "target/Config.in.arch"
source "target/device/Config.in"

menu "Build options"

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_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.

config BR2_DL_DIR
    string "Download dir"
    default "$(BASE_DIR)/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 $(BASE_DIR)/dl

config BR2_COPYTO
    string "Copy result to..."
    default ""
    help
      Setting this variable will (eventually) override 
      any other copyto configurations in buildroot.

source    "target/device/Config.in.mirrors"

config BR2_STAGING_DIR
    string "Toolchain and header file location?"
    default "$(BUILD_DIR)/staging_dir"
    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
      "$(BUILD_DIR)/staging_dir".

config BR2_FPU_SUFFIX
    bool "Add '_nofpu' suffix for softfloat toolchains"
    help
      If the toolchain is configured to use softfloat, then
      the "_nofpu" suffix will be added to the toolchain build
      directory name and to any rootfs image name

config BR2_TOPDIR_PREFIX
    string "Custom build dir prefix"
    default ""
    help
      Add a custom string to the beginning of the build directories..

      build_ARCH -> [PREFIX]_build_ARCH
      toolchain_build_ARCH -> [PREFIX]_toolchain_build_ARCH

config BR2_TOPDIR_SUFFIX
    string "Custom build dir suffix"
    default ""
    help
      Add a custom string to the end of the build directories.

      build_ARCH -> build_ARCH_[SUFFIX]
      toolchain_build_ARCH -> toolchain_build_ARCH_[SUFFIX]

config BR2_GNU_BUILD_SUFFIX
    string "GNU build hostname suffix"
    default "pc-linux-gnu"
    help
      The string used to pass to configure scripts via the
      --build= option.  Just specify the suffix here, the leading
      arch will be filled in automatically.

      Here's some copy and paste build host options for you:
          linux:   pc-linux-gnu
          cygwin:  pc-cygwin
          os x:    apple-darwin7 / apple-darwin8

config BR2_GNU_TARGET_SUFFIX
    string "GNU target suffix"
    default "linux-uclibcgnueabi" if BR2_ARM_EABI
    default "linux-uclibc"
    help
      The string used to pass to configure scripts via the
      --target= option.  Just specify the suffix here, the leading
      arch will be filled in automatically.

      Most users will want to stick with the default setting, though
      other users (most notably ARM EABI) like to add on to this in
      order to stay in line with gcc conventions.

      Default options are:
          linux-uclibcgnueabi for ARM EABI
          linux-uclibc for the rest
          gnuhurd-uclibc for the hurd

config BR2_JLEVEL
    int "Number of jobs to run simultaneously"
    default "1"
    help
      Number of jobs to run simultaneously

config BR2_PREFER_IMA
    bool "prefer IMA compiles"
    help
      Where possible, compile package with Inter Module Analysis.
      This potentially uses alot of system resources on your compile
      host with the benefit of creating smaller binaries for the target.

      If unsure, say No.

      WARNING: This is highly experimental at the moment.

config BR2_DEPRECATED
    bool "Show packages that are deprecated or obsolete"
    help
      This option hides outdated/obsolete versions of packages.

config BR2_RECENT
    bool "Show packages that are of the latest major version"
    default y
    help
      This option show recent versions of packages.

config BR2_CONFIG_CACHE
    bool "Use a central configure cache file"
    help
      This determines if a central config cache is used by
      packages, reducing the configure time for packages as each
      one caches its findings.

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"
    depends on !BR2_PACKAGE_LINUX
    help
      Do not optimize. This is the default.

config BR2_OPTIMIZE_1
    bool "optimization level 1"
    depends on !BR2_PACKAGE_LINUX
    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_MANPAGES
    bool "manpages on the target"
    help
      Leave the manpages on the target.
      If you say n here, your target will not contain any
      manpage.

config BR2_HAVE_INFOPAGES
    bool "infopages on the target"
    help
      Leave the infopages on the target.
      If you say n here, your target will not contain any
      infopage.

config BR2_HAVE_DOCUMENTATION
    bool "documentation on the target"
    help
      Leave the documentation 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

source package/gnuconfig/Config.in

endmenu

source "toolchain/Config.in"

source "package/Config.in"

source "target/Config.in"
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Sincerly,

Thomas
-- 
Looking forword to your help

Sudhir



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