交叉编译找不到crt1.o

Question

嗨，我编译从头开始的Linux（www.linuxfromscratch.org），我对我的要求编写测试C程序，看是否编译工作的一步，它失败。
我使用的命令是：

echo "main(){}" > dummy.c 
$LFS_TGT-gcc -B/tools/lib dummy.c 
readelf -l a.out | grep ': /tools' 

运行第二线的时候，编译器返回以下

..path../bin/ld: cannot find crt1.o: No such file or directory 
..path../bin/ld: cannot find crti.o: No such file or directory 
..path../bin/ld: cannot find -lc 
..path../bin/ld: cannot find crtn.o: No such file or directory 
collect2: ld returned 1 exit status 

不知道的问题是在这里什么以及如何解决它，
所以远远我已经重新安装了gcc包以及规格文件。

的$LFS_TGT-gcc -v -B/tools/lib dummy.c输出是：

Reading specs from /mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/specs 
COLLECT_GCC=x86_64-lfs-linux-gnu-gcc 
COLLECT_LTO_WRAPPER=/mnt/lfs/tools/bin/../libexec/gcc/x86_64-lfs-linux-gnu/4.6.1/lto- wrapper 
Target: x86_64-lfs-linux-gnu 
Configured with: ../gcc-4.6.1/configure --target=x86_64-lfs-linux-gnu --prefix=/tools --disable-nls --disable-shared --disable-multilib --disable-decimal-float --disable-threads --disable-libmudflap --disable-libssp --disable-libgomp --disable-libquadmath --disable-target-libiberty --disable-target-zlib --enable-languages=c --without-pppl --without-cloog --with-mpfr-include=/mnt/lfs/sources/gcc-4.6.1/mpfr/src --with-mpfr-lib=/mnt/lfs/sources/gcc-build/mpfr/src/.libs 
Thread model: single 
gcc version 4.6.1 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-B' '/tools/lib' '-mtune=generic' '-march=x86-64' 
/mnt/lfs/tools/bin/../libexec/gcc/x86_64-lfs-linux-gnu/4.6.1/cc1 -quiet -v -iprefix /mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/ -isystem /tools/include dummy.c quiet -dumpbase dummy.c -mtune=generic -march=x86-64 -auxbase dummy -version -o /tmp/ccQMiBtT.s 
GNU C (GCC) version 4.6.1 (x86_64-lfs-linux-gnu) 
    compiled by GNU C version 4.5.2, GMP version 5.0.2, MPFR version 3.1.0, MPC version 0.9 
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 
ignoring nonexistent directory "/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/sys-include" 
ignoring nonexistent directory "/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/include" 
ignoring duplicate directory "/mnt/lfs/tools/bin/../lib/gcc/../../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/include" 
ignoring duplicate directory "/mnt/lfs/tools/bin/../lib/gcc/../../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/include-fixed" 
ignoring nonexistent directory "/mnt/lfs/tools/bin/../lib/gcc/../../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/sys-include" 
ignoring nonexistent directory "/mnt/lfs/tools/bin/../lib/gcc/../../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/include" 
#include "..." search starts here: 
#include <...> search starts here: 
/tools/include 
/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/include 
/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/include-fixed 
End of search list. 
GNU C (GCC) version 4.6.1 (x86_64-lfs-linux-gnu) 
    compiled by GNU C version 4.5.2, GMP version 5.0.2, MPFR version 3.1.0, MPC version 0.9 
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 
Compiler executable checksum: ac76a9fc3d8568635f4cf190a73f3235 
COLLECT_GCC_OPTIONS='-v' '-B' '/tools/lib' '-mtune=generic' '-march=x86-64' 
/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/bin/as --64 -o /tmp/ccjUV0Gs.o /tmp/ccQMiBtT.s 
COMPILER_PATH=/tools/lib/:/mnt/lfs/tools/bin/../libexec/gcc/x86_64-lfs-linux-gnu/4.6.1/:/mnt/lfs/tools/bin/../libexec/gcc/:/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/bin/ 
LIBRARY_PATH=/tools/lib/:/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/:/mnt/lfs/tools/bin/../lib/gcc/:/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/lib/ 
COLLECT_GCC_OPTIONS='-v' '-B' '/tools/lib' '-mtune=generic' '-march=x86-64' 
/mnt/lfs/tools/bin/../libexec/gcc/x86_64-lfs-linux-gnu/4.6.1/collect2 --eh-frame-hdr -m elf_x86_64 -dynamic-linker /tools/lib64/ld-linux-x86-64.so.2 crt1.o crti.o /mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/crtbegin.o -L/tools/lib -L/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1 -L/mnt/lfs/tools/bin/../lib/gcc -L/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/lib /tmp/ccjUV0Gs.o -lgcc -lc -lgcc /mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/crtend.o crtn.o 
/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crt1.o: No such file or directory 
/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crti.o: No such file or directory 
/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find -lc 
/mnt/lfs/tools/bin/../lib/gcc/x86_64-lfs-linux-gnu/4.6.1/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crtn.o: No such file or directory 
collect2: ld returned 1 exit status 

我意识到这是超长的，但如果有人能告诉什么是相关的，我会修剪。因为老实说，我不知道什么是有用的。

Answer 1

crt1.o，crti.o和crtn.o和libc.a都带有你的glibc。

你需要有glibc的编译你的目标系统并安装，从外观上来看，在/ tools/lib目录。

编辑：不一定glibc，但无论你使用的libc。

Answer 2

通行证-v您$LFS_TGT-gcc明白发生了什么。

Answer 3

如果重新编译GCC是不是因为它已与SYSROOT安装选项，然后试试这个：

`export CFLAGS="--sysroot=<your-gcc-sysroot>"` 

（提示：libc.so.x是<your-gcc-sysroot>/lib）

然后编辑生成文件，并更换

`CFLAGS=BLA-BLA` 
`CPPFLAGS=BLA-BLA` 

与

CFLAGS+=BLA-BLA CPPFLAGS+=BLA-BLA

Answer 4

我面临着以下问题：

root@gccc# arm-wrs-linux-gnueabi-gcc x.c 
/opt/tools/wrl3.GA/wrlinux-3.0/layers/wrll-toolchain-4.3-85/arm/toolchain/x86-linux2/bin/../lib/gcc/arm-wrs-linux-gnueabi/4.3.2/../../../../arm-wrs-linux-gnueabi/bin/ld: crt1.o: No such file: No such file or directory 
collect2: ld returned 1 exit status 
root@gccc# 

所以，当我研究它，我发现我无法找出正确的路径SYSROOT。所以我的命令行上SYSROOT，我的问题解决了：

root@gccc# arm-wrs-linux-gnueabi-gcc x.c --sysroot=/opt/tools/wrl3.GA/sysroot.2011_05_31.18_29_24/arm11_le-glibc_small/sysroot/ -o exe