[yocto] [poky] Is this a bug of binutils

Fri Sep 20 02:56:25 PDT 2013

at 2013-9-20 16:50, Laurentiu Palcu wrote:
> On Fri, Sep 20, 2013 at 11:43:31AM +0300, Laurentiu Palcu wrote:
>> Hi,
>>
>> On Fri, Sep 20, 2013 at 02:45:24PM +0800, Li Zhijian wrote:
>>> Hi，all
>>>
>>> I got a big problem when using the cross-toolchain to compile a simple C program.
>>> This problem since 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8
>>> which is to upgrade the binutils from 2.22 to 2.23.1
> Apparently I missed this... Make sure you checkout
> 0333796a6b167dd754806700d7f771dd4a74e4ab (binutils_2.23.1.bb: Correct
> typo in enable-targets configure option). This might be your problem.
>
> Laurentiu
i am sorry，i don't understand what do you mean

in poky git tree，

3ae71c74c71f13a390b21b4c3ead04e51aaa82b8 is newer than 0333796a6b167dd754806700d7f771dd4a74e4ab

this checkout 0333796a6b167dd754806700d7f771dd4a74e4ab ， toolchain work fine

# git log
commit 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8
Author: Khem Raj <raj.khem at gmail.com>
Date:   Wed Aug 8 10:33:41 2012 -0700

     tcmode-default.inc: Use binutils 2.23.1
...skip...

commit 0333796a6b167dd754806700d7f771dd4a74e4ab
Author: Khem Raj <raj.khem at gmail.com>
Date:   Wed Aug 8 07:57:46 2012 -0700

     oprofile: Include config.h before bfd.h

     oprofile uses bfd.h from binutils which now in 2.23+ expects config.h
     so lets include it
...skip...


-- 
Best regards.
Li Zhijian


>>> what I do is as follows, any help or ideas ?
>>>
>>> I) Build my cross-toolchain
>>> # git clone http://git.yoctoproject.org/git/poky/.git
>>> # cd poky
>>> # git checkout 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8 -b tcmode-default
>>> ...skip some steps...
>>> # bitbake meta-toolchain
>>> Loading cache: 100% |############################################################################################| ETA: 00:00:00
>>> Loaded 1122 entries from dependency cache.
>>>
>>> Build Configuration:
>>> BB_VERSION = "1.17.0"
>>> BUILD_SYS = "x86_64-linux"
>>> NATIVELSBSTRING = "CentOS-6.3"
>>> TARGET_SYS = "x86_64-poky-linux"
>>> MACHINE = "qemux86-64"
>>> DISTRO = "poky"
>>> DISTRO_VERSION = "1.3+snapshot-20130912"
>>> TUNE_FEATURES = "m64"
>>> TARGET_FPU = ""
>>> meta
>>> meta-yocto
>>> meta-yocto-bsp = "tcmode-default:3ae71c74c71f13a390b21b4c3ead04e51aaa82b8"
>>>
>>> ..cost a long time..
>>> all of the build work successfully
>>>
>>> II) Install my cross-toolchain
>>> # ./poky-eglibc-x86_64-x86_64-toolchain-1.3+snapshot-20130912.sh
>>> Enter target directory for SDK (default: /opt/poky/1.3+snapshot): toolchain-1.3-tcmode-default
>>>
>>> III） compile a simple C program
>>> # cat test.c
>>> int main ()
>>> {
>>> printf("hello world\n");
>>> return 0;
>>> }
>>> # source toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
>>> # $CC -o test test.c -L tmp/sysroots/qemux86-64/usr/lib/ -lm
>> Technically, for this simple program, it's enough to do:
>>
>> $CC -o test test.c
>>
>> The $CC contains the sysroot option and the linker will automatically
>> prefix /lib and /usr/lib with the target sysroot. So, it should be able
>> to compile just fine.
>>
>> The -L option just adds another search path for libraries which will be
>> searched before the default ones. So, it shouldn't be a problem.
>>
>> Somehow, it looks like it tries to link against the host's libraries.
>>
>> Before compiling, do a 'echo $CC' and make sure the --sysroot points to
>> the correct directory.
>>
>> Laurentiu
>>
>>> test.c: In function 'main':
>>> test.c:3:9: warning: incompatible implicit declaration of built-in function 'printf' [enabled by default]
>>> /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld: skipping incompatible /lib/libc.so.6 when searching for /lib/libc.so.6
>>> /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld: cannot find /lib/libc.so.6
>>> /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld: skipping incompatible /usr/lib/libc_nonshared.a when searching for /usr/lib/libc_nonshared.a
>>> /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld: cannot find /usr/lib/libc_nonshared.a
>>> collect2: error: ld returned 1 exit status
>>>
>>>
>>> #cat toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
>>> export PATH=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin:/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux:$PATH
>>> export PKG_CONFIG_SYSROOT_DIR=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux
>>> export PKG_CONFIG_PATH=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/pkgconfig
>>> export CONFIG_SITE=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/site-config-x86_64-poky-linux
>>> export CC="x86_64-poky-linux-gcc -m64 --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
>>> export CXX="x86_64-poky-linux-g++ -m64 --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
>>> export CPP="x86_64-poky-linux-gcc -E -m64 --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
>>> export AS="x86_64-poky-linux-as "
>>> export LD="x86_64-poky-linux-ld --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
>>> export GDB=x86_64-poky-linux-gdb
>>> export STRIP=x86_64-poky-linux-strip
>>> export RANLIB=x86_64-poky-linux-ranlib
>>> export OBJCOPY=x86_64-poky-linux-objcopy
>>> export OBJDUMP=x86_64-poky-linux-objdump
>>> export AR=x86_64-poky-linux-ar
>>> export NM=x86_64-poky-linux-nm
>>> export M4=m4
>>> export TARGET_PREFIX=x86_64-poky-linux-
>>> export CONFIGURE_FLAGS="--target=x86_64-poky-linux --host=x86_64-poky-linux --build=x86_64-linux --with-libtool-sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
>>> export CFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types"
>>> export CXXFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types -fpermissive"
>>> export LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed"
>>> export CPPFLAGS=""
>>> export OECORE_NATIVE_SYSROOT="/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux"
>>> export OECORE_TARGET_SYSROOT="/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
>>> export OECORE_ACLOCAL_OPTS="-I /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/share/aclocal"
>>> export OECORE_DISTRO_VERSION="1.3+snapshot-20130912"
>>> export OECORE_SDK_VERSION="1.3+snapshot"
>>>
>>> -- 
>>> Best regards.
>>> Li Zhijian (8555)
>>>
>>>
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>> _______________________________________________
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>