问题
我正在尝试在BeagleBone Black上构建交叉编译器,以便从ARM编译到x86。这样做的目的是使用我手头拥有的低功耗BeagleBone Black作为构建服务器。它已经可以通过mingw-w64编译Windows,但我还需要它来编译适用于Linux x86系统的代码。
然而,当我尝试在BeagleBone Black上编译gcc时,出现以下错误:
/bin/bash ./libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../../gcc-4.6.3/gmp -D__GMP_WITHIN_GMP -g -O2 -c -o mpn/div_qr_1n_pi1.lo mpn/div_qr_1n_pi1.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../../gcc-4.6.3/gmp -D__GMP_WITHIN_GMP -g -O2 -c mpn/div_qr_1n_pi1.c -o mpn/div_qr_1n_pi1.o
/tmp/cckCXg2a.s: Assembler messages:
/tmp/cckCXg2a.s:194: Error: thumb conditional instruction should be in IT block -- `movcc r4,#0'
/tmp/cckCXg2a.s:195: Error: thumb conditional instruction should be in IT block -- `movcs r4,#-1'
/tmp/cckCXg2a.s:452: Error: thumb conditional instruction should be in IT block -- `movcc r4,#0'
/tmp/cckCXg2a.s:453: Error: thumb conditional instruction should be in IT block -- `movcs r4,#-1'
make[4]: *** [mpn/div_qr_1n_pi1.lo] Error 1
make[4]: Leaving directory `$HOME/builds/gcc/gmp'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `$HOME/builds/gcc/gmp'
make[2]: *** [all] Error 2
make[2]: Leaving directory `$HOME/builds/gcc/gmp'
make[1]: *** [all-gmp] Error 2
make[1]: Leaving directory `$HOME/builds/gcc'
make: *** [all] Error 2
我知道拇指与ARM有关,但我对为什么它不起作用感到困惑。我做错了什么?
以下是我尝试创建交叉编译器所采取的步骤。这是我第一次尝试制作交叉编译器,因此大部分信息都来自于几个网页和手册。
采取的步骤
为了创建交叉编译器,我下载了以下软件包:
- binutils-2.24
- gmp-6.0.0a
- mpfr-3.1.2
- mpc-1.0.2
- gcc-4.6.3
- linux-3.15.3
- glibc-2.19
所有这些包都被解压缩到$HOME目录中。
然后,我设置了以下bash环境变量。
export PREFIX="$HOME/cross_compiler/x86_64"
export TARGET="x86_64-linux-gnu"
export PATH="$PREFIX/bin:$PATH"
之后,我开始配置、构建和安装binutils。
mkdir -p $HOME/builds/binutils
cd $HOME/builds/binutils
../../binutils-2.24/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --disable-werror
make
make install
Binutils构建过程中没有出现任何错误,所以我开始构建gcc。首先,我将所有的附加文件移动到gcc目录中。
mv $HOME/gmp-6.0.0a $HOME/gcc-4.6.3/gmp
mv $HOME/mpfr-3.1.2 $HOME/gcc-4.6.3/mpfr
mv $HOME/mpc-1.0.2 $HOME/gcc-4.6.3/mpc
我接着进行了配置,没有任何错误,并尝试构建gcc。
mkdir -p $HOME/builds/gcc
cd $HOME/builds/gcc
../../gcc-4.6.3/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c,c++ --enable-shared --with-multilib-list=m32,m64 --enable-threads=posix --enable-tls --without-headers
make
这导致了以下错误:
/bin/bash ./libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../../gcc-4.6.3/gmp -D__GMP_WITHIN_GMP -g -O2 -c -o mpn/div_qr_1n_pi1.lo mpn/div_qr_1n_pi1.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../../gcc-4.6.3/gmp -D__GMP_WITHIN_GMP -g -O2 -c mpn/div_qr_1n_pi1.c -o mpn/div_qr_1n_pi1.o
/tmp/cckCXg2a.s: Assembler messages:
/tmp/cckCXg2a.s:194: Error: thumb conditional instruction should be in IT block -- `movcc r4,#0'
/tmp/cckCXg2a.s:195: Error: thumb conditional instruction should be in IT block -- `movcs r4,#-1'
/tmp/cckCXg2a.s:452: Error: thumb conditional instruction should be in IT block -- `movcc r4,#0'
/tmp/cckCXg2a.s:453: Error: thumb conditional instruction should be in IT block -- `movcs r4,#-1'
make[4]: *** [mpn/div_qr_1n_pi1.lo] Error 1
make[4]: Leaving directory `$HOME/builds/gcc/gmp'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `$HOME/builds/gcc/gmp'
make[2]: *** [all] Error 2
make[2]: Leaving directory `$HOME/builds/gcc/gmp'
make[1]: *** [all-gmp] Error 2
make[1]: Leaving directory `$HOME/builds/gcc'
make: *** [all] Error 2
贝狄尔骨黑板
Linux version 3.14.1-bone2 (root@imx6q-wandboard-2gb-0) (gcc version 4.6.3 (Debian 4.6.3-14) ) #1 SMP Sun Apr 20 09:56:48 UTC 2014
"gcc -v" 输出
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/4.6/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../src/configure -v --with-pkgversion='Debian 4.6.3-14' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --disable-sjlj-exceptions --with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-mode=thumb --enable-checking=release --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf
Thread model: posix
gcc version 4.6.3 (Debian 4.6.3-14)
桌面电脑
这是我最终想让代码运行的计算机。
Linux version 3.2.0-65-generic (buildd@brownie) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #98-Ubuntu SMP Wed Jun 11 20:27:07 UTC 2014
"gcc -v" 输出:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.3-1ubuntu5' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
gcc -v
)。你是否使用相同的--host
配置了交叉编译器?你能否构建一个普通的(非交叉)编译器? - n. m.gcc -v
。在ARM机器上会发生什么?另外,使用build=x86_64-linux-gnu host=arm-whatever target=x86_64-linux-gnu构建一种加拿大交叉编译器(crossback)可能更简单。 - n. m.