Is this a bug of binutils

Is this a bug of binutils

[Li Zhijian]

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

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
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)

Re: [yocto] Is this a bug of binutils

[Laurentiu Palcu]

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
> 
> 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)
> 
> 
> _______________________________________________
> yocto mailing list
> yocto@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/yocto

Re: Is this a bug of binutils

[Laurentiu Palcu]

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
> 
> 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)
> 
> 
> _______________________________________________
> yocto mailing list
> yocto@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/yocto

Re: [yocto] Is this a bug of binutils

[Laurentiu Palcu]

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

> > 
> > 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)
> > 
> > 
> > _______________________________________________
> > yocto mailing list
> > yocto@yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/yocto
> _______________________________________________
> poky mailing list
> poky@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/poky

Re: [poky] Is this a bug of binutils

[Laurentiu Palcu]

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

> > 
> > 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)
> > 
> > 
> > _______________________________________________
> > yocto mailing list
> > yocto@yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/yocto
> _______________________________________________
> poky mailing list
> poky@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/poky

Re: Is this a bug of binutils

[Li Zhijian]

at 2013-9-20 16:43, 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
>>
>> 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
i know that is enough and it is compiled OK
but in the case with -L option ,it is failed


> 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.

I haved source the toolchian environment which is installed by
./poky-eglibc-x86_64-x86_64-toolchain-1.3+snapshot-20130912.sh and i think
that would include all the correct environment value

# source toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
this file's detail is at the last of this thread

# echo $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

the sysroot points to directory which is install by ./poky-eglibc-x86_64-x86_64-toolchain-1.3+snapshot-20130912.sh
this directory includes a basic target sysroot

>
> 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.
yes, it seems that ld try to link to host's libraries
but i am not sure that if i had do some wrong steps



> Before compiling, do a 'echo $CC' and make sure the --sysroot points to
> the correct directory.
you means that i must make --sysroot points to the sysroot build by myself instead
of the sysroot provided by poky-eglibc-x86_64-x86_64-toolchain-1.3+snapshot-20130912.sh ??

-- 
Best regards.
Li Zhijian

>
> 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)
>>
>>
>> _______________________________________________
>> yocto mailing list
>> yocto@yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/yocto
>

Re: [poky] Is this a bug of binutils

[Li Zhijian]

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@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@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)
>>>
>>>
>>> _______________________________________________
>>> yocto mailing list
>>> yocto@yoctoproject.org
>>> https://lists.yoctoproject.org/listinfo/yocto
>> _______________________________________________
>> poky mailing list
>> poky@yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/poky
>

Re: [yocto] Is this a bug of binutils

[Laurentiu Palcu]

On Fri, Sep 20, 2013 at 05:56:25PM +0800, Li Zhijian wrote:
> 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
My bad, I copy-pasted the wrong sha1 (the summary was good though).
Here's the correct sha1: a8fa49fbc21d460479ecadeb1996a800cc4e3e07

Laurentiu
> 
> in poky git tree，
> 
> 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8 is newer than 0333796a6b167dd754806700d7f771dd4a74e4ab
> 
> this checkout 0333796a6b167dd754806700d7f771dd4a74e4ab ， toolchain work fine
> 
> # git log
> commit 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8
> Author: Khem Raj <raj.khem@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@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)
> >>>
> >>>
> >>>_______________________________________________
> >>>yocto mailing list
> >>>yocto@yoctoproject.org
> >>>https://lists.yoctoproject.org/listinfo/yocto
> >>_______________________________________________
> >>poky mailing list
> >>poky@yoctoproject.org
> >>https://lists.yoctoproject.org/listinfo/poky
> >
> 
> 
> 

Re: [poky] Is this a bug of binutils

[Laurentiu Palcu]

On Fri, Sep 20, 2013 at 05:56:25PM +0800, Li Zhijian wrote:
> 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
My bad, I copy-pasted the wrong sha1 (the summary was good though).
Here's the correct sha1: a8fa49fbc21d460479ecadeb1996a800cc4e3e07

Laurentiu
> 
> in poky git tree，
> 
> 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8 is newer than 0333796a6b167dd754806700d7f771dd4a74e4ab
> 
> this checkout 0333796a6b167dd754806700d7f771dd4a74e4ab ， toolchain work fine
> 
> # git log
> commit 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8
> Author: Khem Raj <raj.khem@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@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)
> >>>
> >>>
> >>>_______________________________________________
> >>>yocto mailing list
> >>>yocto@yoctoproject.org
> >>>https://lists.yoctoproject.org/listinfo/yocto
> >>_______________________________________________
> >>poky mailing list
> >>poky@yoctoproject.org
> >>https://lists.yoctoproject.org/listinfo/poky
> >
> 
> 
> 

Re: [poky] Is this a bug of binutils

[Li Zhijian]

at 2013-9-20 18:02, Laurentiu Palcu wrote:
> On Fri, Sep 20, 2013 at 05:56:25PM +0800, Li Zhijian wrote:
>> 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
> My bad, I copy-pasted the wrong sha1 (the summary was good though).
> Here's the correct sha1: a8fa49fbc21d460479ecadeb1996a800cc4e3e07

not really this fix，i build meta-toolchain on yocto-1.4.1(73f103bf9b2cdf985464dc53bf4f1cfd71d4531f)
and got the same problem

even at the latest poky, got the same problem

-- 
Best regards.
Li Zhijian


> Laurentiu
>> in poky git tree，
>>
>> 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8 is newer than 0333796a6b167dd754806700d7f771dd4a74e4ab
>>
>> this checkout 0333796a6b167dd754806700d7f771dd4a74e4ab ， toolchain work fine
>>
>> # git log
>> commit 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8
>> Author: Khem Raj <raj.khem@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@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)
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> yocto mailing list
>>>>> yocto@yoctoproject.org
>>>>> https://lists.yoctoproject.org/listinfo/yocto
>>>> _______________________________________________
>>>> poky mailing list
>>>> poky@yoctoproject.org
>>>> https://lists.yoctoproject.org/listinfo/poky
>>
>>
>

Re: [yocto] Is this a bug of binutils

[Laurentiu Palcu]

Hi,

On Fri, Sep 20, 2013 at 06:25:19PM +0800, Li Zhijian wrote:
> >>>>>
> >>>>>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
OK, it looks like something strange happens in your setup.

To debug it, let's add '-Wl,--verbose' at the end of your command and you
should be able to see where the linker is looking for libraries. Also,
the linker script will be printed.

You should see it try your directory first
tmp/sysroots/qemux86-64/usr/lib/, and then fall through the default ones
with the sysroot prefix added and, at the end, the system ones:
/lib:/usr/lib.

Thanks,
Laurentiu

Re: [poky] Is this a bug of binutils

[Laurentiu Palcu]

Hi,

On Fri, Sep 20, 2013 at 06:25:19PM +0800, Li Zhijian wrote:
> >>>>>
> >>>>>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
OK, it looks like something strange happens in your setup.

To debug it, let's add '-Wl,--verbose' at the end of your command and you
should be able to see where the linker is looking for libraries. Also,
the linker script will be printed.

You should see it try your directory first
tmp/sysroots/qemux86-64/usr/lib/, and then fall through the default ones
with the sysroot prefix added and, at the end, the system ones:
/lib:/usr/lib.

Thanks,
Laurentiu

Re: [poky] Is this a bug of binutils

[Li Zhijian]

at 2013-9-20 19:00, Laurentiu Palcu wrote:
> Hi,
>
> On Fri, Sep 20, 2013 at 06:25:19PM +0800, Li Zhijian wrote:
>>>>>>> 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
> OK, it looks like something strange happens in your setup.
>
> To debug it, let's add '-Wl,--verbose' at the end of your command and you
> should be able to see where the linker is looking for libraries. Also,
> the linker script will be printed.
>
> You should see it try your directory first
> tmp/sysroots/qemux86-64/usr/lib/, and then fall through the default ones
> with the sysroot prefix added and, at the end, the system ones:
> /lib:/usr/lib.
>
> Thanks,
> Laurentiu

First，in this case

[lizj@suika x86-64-yocto-1.3]$ source toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
[lizj@suika x86-64-yocto-1.3]$ echo $CC
x86_64-poky-linux-gcc -m64 --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux
[lizj@suika x86-64-yocto-1.3]$ $CC -o test test.c -L tmp/sysroots/qemux86-64/usr/lib/ -lm -Wl,--verbose
test.c: In function 'main':
test.c:3:9: warning: incompatible implicit declaration of built-in function 'printf' [enabled by default]
GNU ld (GNU Binutils) 2.23.1.20121113
   Supported emulations:
    elf_x86_64
    elf32_x86_64
    elf_i386
    i386linux
    elf_l1om
    elf_k1om
using internal linker script:
==================================================
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64",
               "elf64-x86-64")
OUTPUT_ARCH(i386:x86-64)
ENTRY(_start)
SEARCH_DIR("/opt/poky/1.3+snapshot/sysroots/x86_64-pokysdk-linux/usr/x86_64-poky-linux/lib64"); SEARCH_DIR("=/usr/local/lib64"); SEARCH_DIR("=/lib64"); SEARCH_DIR("=/usr/lib64"); SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");
SECTIONS
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==================================================
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/../lib/crt1.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/../lib/crt1.o
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/../lib/crti.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/../lib/crti.o
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/x86_64-poky-linux/4.7.2/crtbegin.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/x86_64-poky-linux/4.7.2/crtbegin.o
attempt to open /tmp/ccyeJPMB.o succeeded
/tmp/ccyeJPMB.o
attempt to open tmp/sysroots/qemux86-64/usr/lib//libm.so succeeded
-lm (tmp/sysroots/qemux86-64/usr/lib//libm.so)
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc.so failed
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/lib/../lib/libgcc.so failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/lib/../lib/libgcc.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/x86_64-poky-linux/4.7.2/libgcc.so failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/x86_64-poky-linux/4.7.2/libgcc.a succeeded
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc_s.so failed
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc_s.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc_s.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc_s.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc_s.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc_s.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/lib/../lib/libgcc_s.so succeeded
-lgcc_s (/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/lib/../lib/libgcc_s.so)
attempt to open tmp/sysroots/qemux86-64/usr/lib//libc.so succeeded
opened script file tmp/sysroots/qemux86-64/usr/lib//libc.so
opened script file tmp/sysroots/qemux86-64/usr/lib//libc.so
attempt to open /lib/libc.so.6 succeeded
attempt to open /usr/lib/libc_nonshared.a succeeded
attempt to open /lib/ld-linux-x86-64.so.2 succeeded
/lib/ld-linux-x86-64.so.2
/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

-- 
Best regards.
Li Zhijian

Re: [poky] Is this a bug of binutils

[Li Zhijian]

at 2013-9-23 10:34, Li Zhijian wrote:
> at 2013-9-20 19:00, Laurentiu Palcu wrote:
>> Hi,
>>
>> On Fri, Sep 20, 2013 at 06:25:19PM +0800, Li Zhijian wrote:
>>>>>>>> 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
>> OK, it looks like something strange happens in your setup.
>>
>> To debug it, let's add '-Wl,--verbose' at the end of your command and you
>> should be able to see where the linker is looking for libraries. Also,
>> the linker script will be printed.
>>
>> You should see it try your directory first
>> tmp/sysroots/qemux86-64/usr/lib/, and then fall through the default ones
>> with the sysroot prefix added and, at the end, the system ones:
>> /lib:/usr/lib.
>>
>> Thanks,
>> Laurentiu
>
> First，in this case 
Secondly,
clear all the environment setuped with environment-setup-x86_64-poky-linux previously and then set
--sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64
In this case ,toolchain work fine

[lizj@suika x86-64-yocto-1.3]$ bash
[lizj@suika x86-64-yocto-1.3]$ /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/x86_64-poky-linux-gcc --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64 -o test test.c -L tmp/sysroots/qemux86-64/usr/lib/ -lm
x86-64  -o test test.c -L tmp/sysroots/qemux86-64/usr/lib/ -lm -Wl,--verbose
test.c: In function 'main':
test.c:3:9: warning: incompatible implicit declaration of built-in function 'printf' [enabled by default]
GNU ld (GNU Binutils) 2.23.1.20121113
   Supported emulations:
    elf_x86_64
    elf32_x86_64
    elf_i386
    i386linux
    elf_l1om
    elf_k1om
using internal linker script:
==================================================
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64",
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OUTPUT_ARCH(i386:x86-64)
ENTRY(_start)
SEARCH_DIR("/opt/poky/1.3+snapshot/sysroots/x86_64-pokysdk-linux/usr/x86_64-poky-linux/lib64"); SEARCH_DIR("=/usr/local/lib64"); SEARCH_DIR("=/lib64"); SEARCH_DIR("=/usr/lib64"); SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");
SECTIONS
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}


==================================================
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/../lib/crt1.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/../lib/crt1.o
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/../lib/crti.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/../lib/crti.o
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/crtbegin.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/crtbegin.o
attempt to open /tmp/ccqSR6oO.o succeeded
/tmp/ccqSR6oO.o
attempt to open tmp/sysroots/qemux86-64/usr/lib//libm.so succeeded
-lm (tmp/sysroots/qemux86-64/usr/lib//libm.so)
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc.so failed
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc.so failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/libgcc.so failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/libgcc.a succeeded
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc_s.so failed
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc_s.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc_s.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc_s.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc_s.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc_s.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc_s.so succeeded
-lgcc_s (/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc_s.so)
attempt to open tmp/sysroots/qemux86-64/usr/lib//libc.so succeeded
opened script file tmp/sysroots/qemux86-64/usr/lib//libc.so
opened script file tmp/sysroots/qemux86-64/usr/lib//libc.so
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/libc.so.6 succeeded
/lib/libc.so.6 (/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/libc.so.6)
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/libc_nonshared.a succeeded
(/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/libc_nonshared.a)elf-init.oS
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/ld-linux-x86-64.so.2 succeeded
/lib/ld-linux-x86-64.so.2 (/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/ld-linux-x86-64.so.2)
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc.so failed
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc.so failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/libgcc.so failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/libgcc.a succeeded
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc_s.so failed
attempt to open tmp/sysroots/qemux86-64/usr/lib//libgcc_s.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc_s.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/libgcc_s.a failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc_s.so failed
attempt to open /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/../../lib/x86_64-poky-linux/gcc/libgcc_s.a failed
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc_s.so succeeded
-lgcc_s (/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/../lib/libgcc_s.so)
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/crtend.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/x86_64-poky-linux/4.7.2/crtend.o
attempt to open /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/../lib/crtn.o succeeded
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/usr/lib/../lib/crtn.o
ld-linux-x86-64.so.2 needed by /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/libc.so.6
found ld-linux-x86-64.so.2 at /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/tmp/sysroots/qemux86-64/lib/ld-linux-x86-64.so.2
[lizj@suika x86-64-yocto-1.3]$ echo $?

-- 
Best regards.
Li Zhijian

Re: [poky] Is this a bug of binutils

[Li Zhijian]

Hi，Laurentiu

I think it could be something wrong with binutils(2.23.1 or later)
there is different behavior at binutils-2.23.1/ld/ldfile.c（ldfile_open_file_search) from binutils-2.22

If both --sysroot directory and -L directory include libc.so , ld don't work
In my case， there are double libc.so(/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/libc.so and tmp/sysroots/qemux86-64/usr/lib/libc.so)

ld will link tmp/sysroots/qemux86-64/usr/lib/libc.so（ld always searchs -L directory at first)
then link /lib/libc.so.6 specified at tmp/sysroots/qemux86-64/usr/lib/libc.so instead of
append sysroot directory path before /lib/libc.so.6

here is a sample method reproduce it

lizj@suika x86-64-yocto-1.3]$ source toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
[lizj@suika x86-64-yocto-1.3]$ echo $CC
x86_64-poky-linux-gcc -m64 --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux
[lizj@suika x86-64-yocto-1.3]$ $LD --version
GNU ld (GNU Binutils) 2.23.1.20121113
[lizj@suika x86-64-yocto-1.3]$ mkdir -p fake_rootfs/usr/lib
[lizj@suika x86-64-yocto-1.3]$ cp /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/libc.so fake_rootfs/usr/lib/
[lizj@suika x86-64-yocto-1.3]$ ls fake_rootfs/usr/lib/
libc.so
[lizj@suika x86-64-yocto-1.3]$ $CC -o test test.c -L ./fake_rootfs/usr/lib/
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
-------------------------------------------------------------------------

It seems that ld don‘t  really reasonable to do like that，which binutils-2.22 can handle correctly
Does poky mind this behavior


以上

-- 
Best regards.
Li Zhijian



at 2013-9-20 19:00, Laurentiu Palcu wrote:
> Hi,
>
> On Fri, Sep 20, 2013 at 06:25:19PM +0800, Li Zhijian wrote:
>>>>>>> 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
> OK, it looks like something strange happens in your setup.
>
> To debug it, let's add '-Wl,--verbose' at the end of your command and you
> should be able to see where the linker is looking for libraries. Also,
> the linker script will be printed.
>
> You should see it try your directory first
> tmp/sysroots/qemux86-64/usr/lib/, and then fall through the default ones
> with the sysroot prefix added and, at the end, the system ones:
> /lib:/usr/lib.
>
> Thanks,
> Laurentiu
>
>

Re: [yocto] Is this a bug of binutils

[Laurentiu Palcu]

Hi Li Zhijian,

On Thu, Sep 26, 2013 at 11:57:22AM +0800, Li Zhijian wrote:
> Hi，Laurentiu
> 
> I think it could be something wrong with binutils(2.23.1 or later)
> there is different behavior at binutils-2.23.1/ld/ldfile.c（ldfile_open_file_search) from binutils-2.22
> 
> If both --sysroot directory and -L directory include libc.so , ld don't work
> In my case， there are double libc.so(/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/libc.so and tmp/sysroots/qemux86-64/usr/lib/libc.so)
> 
> ld will link tmp/sysroots/qemux86-64/usr/lib/libc.so（ld always searchs -L directory at first)
> then link /lib/libc.so.6 specified at tmp/sysroots/qemux86-64/usr/lib/libc.so instead of
> append sysroot directory path before /lib/libc.so.6
> 
> here is a sample method reproduce it
> 
> lizj@suika x86-64-yocto-1.3]$ source toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
> [lizj@suika x86-64-yocto-1.3]$ echo $CC
> x86_64-poky-linux-gcc -m64 --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux
> [lizj@suika x86-64-yocto-1.3]$ $LD --version
> GNU ld (GNU Binutils) 2.23.1.20121113
> [lizj@suika x86-64-yocto-1.3]$ mkdir -p fake_rootfs/usr/lib
> [lizj@suika x86-64-yocto-1.3]$ cp /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/libc.so fake_rootfs/usr/lib/
This libc.so is actually a linker script with the following contents:

/* GNU ld script
   Use the shared library, but some functions are only in
   the static library, so try that secondarily.  */
OUTPUT_FORMAT(elf64-x86-64)
GROUP ( /lib/libc.so.6 /usr/lib/libc_nonshared.a  AS_NEEDED (/lib/ld-linux-x86-64.so.2 ) )

So, the /lib/libc.so.6 and /usr/lib/libc_nonshared.a will be searched until no
undefined references are created. So, it looks like this linker script
overrides the --sysroot behavior. To be honest (even though I'm not an expert in
binutils), I think this is right behavior. I don't know why this works with the
previous binutils...

Thanks,
Laurentiu

> [lizj@suika x86-64-yocto-1.3]$ ls fake_rootfs/usr/lib/
> libc.so
> [lizj@suika x86-64-yocto-1.3]$ $CC -o test test.c -L ./fake_rootfs/usr/lib/
> 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
> -------------------------------------------------------------------------
> 
> It seems that ld don‘t  really reasonable to do like that，which binutils-2.22 can handle correctly
> Does poky mind this behavior
> 
> 
> 以上
> 
> -- 
> Best regards.
> Li Zhijian
> 
> 
> 
> at 2013-9-20 19:00, Laurentiu Palcu wrote:
> >Hi,
> >
> >On Fri, Sep 20, 2013 at 06:25:19PM +0800, Li Zhijian wrote:
> >>>>>>>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
> >OK, it looks like something strange happens in your setup.
> >
> >To debug it, let's add '-Wl,--verbose' at the end of your command and you
> >should be able to see where the linker is looking for libraries. Also,
> >the linker script will be printed.
> >
> >You should see it try your directory first
> >tmp/sysroots/qemux86-64/usr/lib/, and then fall through the default ones
> >with the sysroot prefix added and, at the end, the system ones:
> >/lib:/usr/lib.
> >
> >Thanks,
> >Laurentiu
> >
> >
> 
> 
> 

Re: [poky] Is this a bug of binutils

[Laurentiu Palcu]

Hi Li Zhijian,

On Thu, Sep 26, 2013 at 11:57:22AM +0800, Li Zhijian wrote:
> Hi，Laurentiu
> 
> I think it could be something wrong with binutils(2.23.1 or later)
> there is different behavior at binutils-2.23.1/ld/ldfile.c（ldfile_open_file_search) from binutils-2.22
> 
> If both --sysroot directory and -L directory include libc.so , ld don't work
> In my case， there are double libc.so(/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/libc.so and tmp/sysroots/qemux86-64/usr/lib/libc.so)
> 
> ld will link tmp/sysroots/qemux86-64/usr/lib/libc.so（ld always searchs -L directory at first)
> then link /lib/libc.so.6 specified at tmp/sysroots/qemux86-64/usr/lib/libc.so instead of
> append sysroot directory path before /lib/libc.so.6
> 
> here is a sample method reproduce it
> 
> lizj@suika x86-64-yocto-1.3]$ source toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
> [lizj@suika x86-64-yocto-1.3]$ echo $CC
> x86_64-poky-linux-gcc -m64 --sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux
> [lizj@suika x86-64-yocto-1.3]$ $LD --version
> GNU ld (GNU Binutils) 2.23.1.20121113
> [lizj@suika x86-64-yocto-1.3]$ mkdir -p fake_rootfs/usr/lib
> [lizj@suika x86-64-yocto-1.3]$ cp /yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/libc.so fake_rootfs/usr/lib/
This libc.so is actually a linker script with the following contents:

/* GNU ld script
   Use the shared library, but some functions are only in
   the static library, so try that secondarily.  */
OUTPUT_FORMAT(elf64-x86-64)
GROUP ( /lib/libc.so.6 /usr/lib/libc_nonshared.a  AS_NEEDED (/lib/ld-linux-x86-64.so.2 ) )

So, the /lib/libc.so.6 and /usr/lib/libc_nonshared.a will be searched until no
undefined references are created. So, it looks like this linker script
overrides the --sysroot behavior. To be honest (even though I'm not an expert in
binutils), I think this is right behavior. I don't know why this works with the
previous binutils...

Thanks,
Laurentiu

> [lizj@suika x86-64-yocto-1.3]$ ls fake_rootfs/usr/lib/
> libc.so
> [lizj@suika x86-64-yocto-1.3]$ $CC -o test test.c -L ./fake_rootfs/usr/lib/
> 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
> -------------------------------------------------------------------------
> 
> It seems that ld don‘t  really reasonable to do like that，which binutils-2.22 can handle correctly
> Does poky mind this behavior
> 
> 
> 以上
> 
> -- 
> Best regards.
> Li Zhijian
> 
> 
> 
> at 2013-9-20 19:00, Laurentiu Palcu wrote:
> >Hi,
> >
> >On Fri, Sep 20, 2013 at 06:25:19PM +0800, Li Zhijian wrote:
> >>>>>>>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
> >OK, it looks like something strange happens in your setup.
> >
> >To debug it, let's add '-Wl,--verbose' at the end of your command and you
> >should be able to see where the linker is looking for libraries. Also,
> >the linker script will be printed.
> >
> >You should see it try your directory first
> >tmp/sysroots/qemux86-64/usr/lib/, and then fall through the default ones
> >with the sysroot prefix added and, at the end, the system ones:
> >/lib:/usr/lib.
> >
> >Thanks,
> >Laurentiu
> >
> >
> 
> 
>