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.k...@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.k...@gmail.com>
Date: Wed Aug 8 07:57:46 2012 -0700
oprofile: Include config.h before bfd.h
oprofile uses bfd.h from binutils which now in 2.23+ expects config.h
so lets include it
...skip...
--
Best regards.
Li Zhijian
what I do is as follows, any help or ideas ?
I) Build my cross-toolchain
# git clone http://git.yoctoproject.org/git/poky/.git
# cd poky
# git checkout 3ae71c74c71f13a390b21b4c3ead04e51aaa82b8 -b tcmode-default
...skip some steps...
# bitbake meta-toolchain
Loading cache: 100%
|############################################################################################|
ETA: 00:00:00
Loaded 1122 entries from dependency cache.
Build Configuration:
BB_VERSION = "1.17.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "CentOS-6.3"
TARGET_SYS = "x86_64-poky-linux"
MACHINE = "qemux86-64"
DISTRO = "poky"
DISTRO_VERSION = "1.3+snapshot-20130912"
TUNE_FEATURES = "m64"
TARGET_FPU = ""
meta
meta-yocto
meta-yocto-bsp = "tcmode-default:3ae71c74c71f13a390b21b4c3ead04e51aaa82b8"
..cost a long time..
all of the build work successfully
II) Install my cross-toolchain
# ./poky-eglibc-x86_64-x86_64-toolchain-1.3+snapshot-20130912.sh
Enter target directory for SDK (default: /opt/poky/1.3+snapshot):
toolchain-1.3-tcmode-default
III） compile a simple C program
# cat test.c
int main ()
{
printf("hello world\n");
return 0;
}
# source toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
# $CC -o test test.c -L tmp/sysroots/qemux86-64/usr/lib/ -lm
Technically, for this simple program, it's enough to do:
$CC -o test test.c
The $CC contains the sysroot option and the linker will automatically
prefix /lib and /usr/lib with the target sysroot. So, it should be able
to compile just fine.
The -L option just adds another search path for libraries which will be
searched before the default ones. So, it shouldn't be a problem.
Somehow, it looks like it tries to link against the host's libraries.
Before compiling, do a 'echo $CC' and make sure the --sysroot points to
the correct directory.
Laurentiu
test.c: In function 'main':
test.c:3:9: warning: incompatible implicit declaration of built-in function
'printf' [enabled by default]
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld:
skipping incompatible /lib/libc.so.6 when searching for /lib/libc.so.6
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld:
cannot find /lib/libc.so.6
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld:
skipping incompatible /usr/lib/libc_nonshared.a when searching for
/usr/lib/libc_nonshared.a
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux/../../libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/4.7.2/ld:
cannot find /usr/lib/libc_nonshared.a
collect2: error: ld returned 1 exit status
#cat toolchain-1.3-tcmode-default/environment-setup-x86_64-poky-linux
export
PATH=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin:/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/bin/x86_64-poky-linux:$PATH
export
PKG_CONFIG_SYSROOT_DIR=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux
export
PKG_CONFIG_PATH=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux/usr/lib/pkgconfig
export
CONFIG_SITE=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/site-config-x86_64-poky-linux
export CC="x86_64-poky-linux-gcc -m64
--sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
export CXX="x86_64-poky-linux-g++ -m64
--sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
export CPP="x86_64-poky-linux-gcc -E -m64
--sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
export AS="x86_64-poky-linux-as "
export LD="x86_64-poky-linux-ld
--sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
export GDB=x86_64-poky-linux-gdb
export STRIP=x86_64-poky-linux-strip
export RANLIB=x86_64-poky-linux-ranlib
export OBJCOPY=x86_64-poky-linux-objcopy
export OBJDUMP=x86_64-poky-linux-objdump
export AR=x86_64-poky-linux-ar
export NM=x86_64-poky-linux-nm
export M4=m4
export TARGET_PREFIX=x86_64-poky-linux-
export CONFIGURE_FLAGS="--target=x86_64-poky-linux --host=x86_64-poky-linux
--build=x86_64-linux
--with-libtool-sysroot=/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
export CFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types"
export CXXFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types -fpermissive"
export LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed"
export CPPFLAGS=""
export
OECORE_NATIVE_SYSROOT="/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux"
export
OECORE_TARGET_SYSROOT="/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-poky-linux"
export OECORE_ACLOCAL_OPTS="-I
/yocto/fnst/lizj/build_yocto/x86-64-yocto-1.3/toolchain-1.3-tcmode-default/sysroots/x86_64-pokysdk-linux/usr/share/aclocal"
export OECORE_DISTRO_VERSION="1.3+snapshot-20130912"
export OECORE_SDK_VERSION="1.3+snapshot"
--
Best regards.
Li Zhijian (8555)
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