Linux 交叉编译找不到 crt1.o
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Cross Compile Cannot Find crt1.o
提问by Drew Galbraith
Hi I am compiling Linux from Scratch (www.linuxfromscratch.org) and I am on a step that requires my to compile a test c program to see if the compilation is working and it is failing.
The commands I am using are:
嗨，我正在从头开始编译 Linux (www.linuxfromscratch.org)，我正在执行一个步骤，需要我编译一个测试 c 程序，以查看编译是否正常工作并且是否失败。
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'
When running the second line, the compiler returns the following
运行第二行时，编译器返回以下内容
..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
Not sure what the problem is here and how to fix it,
So far I have reinstalled the gcc package as well as the specs file.
不确定这里的问题是什么以及如何解决它，
到目前为止我已经重新安装了 gcc 包以及规范文件。
The output of $LFS_TGT-gcc -v -B/tools/lib dummy.cis:
的输出$LFS_TGT-gcc -v -B/tools/lib dummy.c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
I realize that it is super long but if someone would tell what is relevant I will trim it. Because quite honestly I don't know whats useful.
我意识到它很长，但如果有人会告诉我什么是相关的，我会修剪它。因为老实说，我不知道什么有用。
采纳答案by chill
crt1.o, crti.o and crtn.o and libc.a all come with your glibc.
crt1.o、crti.o 和 crtn.o 和 libc.a 都与您的 glibc 一起提供。
You need to have glibc compiled for your target system and installed, from the looks of it, in /tools/lib.
你需要为你的目标系统编译 glibc 并安装在 /tools/lib 中，从它的外观来看。
EDIT: Not necessarily glibc, but whatever libc you're using.
编辑：不一定是glibc，但无论您使用什么libc。
回答by Basile Starynkevitch
Pass -vto your $LFS_TGT-gccto understand what is happening.
传递-v给您$LFS_TGT-gcc以了解正在发生的事情。
回答by FractalSpace
If recompiling gcc is not an option because it is already installed with sysroot, then try this:
如果重新编译 gcc 不是一个选项，因为它已经与 sysroot 一起安装，那么试试这个：
`export CFLAGS="--sysroot=<your-gcc-sysroot>"`
(hint: libc.so.xis in <your-gcc-sysroot>/lib)
（提示：libc.so.x在<your-gcc-sysroot>/lib）
Then edit your makefile and replace any
然后编辑您的 makefile 并替换任何
`CFLAGS=BLA-BLA`
`CPPFLAGS=BLA-BLA`
with
和
CFLAGS+=BLA-BLACPPFLAGS+=BLA-BLA
CFLAGS+=BLA-BLACPPFLAGS+=BLA-BLA
回答by NEERAJ
I was facing the following problem:
我面临以下问题：
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#
So when I researched it I found out that I was not able to find out the sysroot in the correct path. So I specified the sysroot on the command line and my problem was solved:
因此，当我研究它时，我发现我无法在正确的路径中找到 sysroot。所以我在命令行上指定了 sysroot，我的问题就解决了：
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
