C++ 为什么可以'；GCC交叉编译器是否找到所有库？
为什么它在库搜索路径中查找C++ 为什么可以'；GCC交叉编译器是否找到所有库？,c++,linux,gcc,cross-compiling,C++,Linux,Gcc,Cross Compiling,为什么它在库搜索路径中查找libgcc，而不查找crt*.o库（在下面的第二个代码块中向下滚动）？另外，为什么它要在sysroot下的/lib和/usr/lib中查找，而不是在sysroot下的/tmptools/lib中查找（这是我真正希望它查找的唯一路径）？以下是交叉编译器的配置方式： ../binutils-2.26/configure --prefix="$LFS_CROSSTOOLCHAIN" --build=$LFS_BUILD_ARCH --host=$LFS_BUILD_ARCH
libgcccrt*.o/lib/usr/lib/tmptools/lib../binutils-2.26/configure --prefix="$LFS_CROSSTOOLCHAIN" --build=$LFS_BUILD_ARCH --host=$LFS_BUILD_ARCH --target=$LFS_TARGET_ARCH --with-lib-path="/tmptools/lib" --disable-multilib --disable-multiarch --disable-rpath --disable-nls --with-sysroot="$LFS_SYSROOT"
../gcc-6.1.0/configure --prefix="$LFS_CROSSTOOLCHAIN" --build=$LFS_BUILD_ARCH --host=$LFS_BUILD_ARCH --target=$LFS_TARGET_ARCH --disable-bootstrap --with-newlib --without-headers --with-local-prefix="/tmptools" --with-native-system-header-dir="/tmptools/include" --with-lib-path="/tmptools/lib" --disable-multilib --disable-multiarch --disable-rpath --enable-languages=c,c++ --disable-nls --with-sysroot="$LFS_SYSROOT"
LFS\u CROSSTOOLCHAIN=/home/main/LFS/3/crosstoolsLFS\u SYSROOT=/home/main/LFS/3/root$ 3/crosstools/bin/x86_64-lfs-linux-gnu-gcc -print-sysroot
/home/main/lfs/3/root
$ 3/crosstools/bin/x86_64-lfs-linux-gnu-ld -print-sysroot
/home/main/lfs/3/root
$ 3/crosstools/bin/x86_64-lfs-linux-gnu-gcc -Wl,--verbose test.c
GNU ld (GNU Binutils) 2.26.20160125
Supported emulations:
elf_x86_64
elf32_x86_64
elf_i386
elf_iamcu
i386linux
elf_l1om
elf_k1om
using internal linker script:
==================================================
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==================================================
attempt to open crt1.o failed
attempt to open crti.o failed
attempt to open crtbegin.o failed
attempt to open /tmp/ccLVBgXQ.o succeeded
/tmp/ccLVBgXQ.o
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc.a failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc.a failed
attempt to open /home/main/lfs/3/root/lib/libgcc.so failed
attempt to open /home/main/lfs/3/root/lib/libgcc.a succeeded
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc_s.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc_s.a failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/usr/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/usr/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib64/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib64/libgcc_s.a failed
attempt to open /tmptools/lib/libgcc_s.so failed
attempt to open /tmptools/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libc.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libc.a failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libc.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libc.a failed
attempt to open /home/main/lfs/3/root/lib/libc.so failed
attempt to open /home/main/lfs/3/root/lib/libc.a failed
attempt to open /home/main/lfs/3/root/usr/lib/libc.so failed
attempt to open /home/main/lfs/3/root/usr/lib/libc.a failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib64/libc.so failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib64/libc.a failed
attempt to open /tmptools/lib/libc.so failed
attempt to open /tmptools/lib/libc.a failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib/libc.so failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib/libc.a failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc.a failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc.a failed
attempt to open /home/main/lfs/3/root/lib/libgcc.so failed
attempt to open /home/main/lfs/3/root/lib/libgcc.a succeeded
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc_s.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/libgcc_s.a failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/usr/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/usr/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib64/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib64/libgcc_s.a failed
attempt to open /tmptools/lib/libgcc_s.so failed
attempt to open /tmptools/lib/libgcc_s.a failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib/libgcc_s.so failed
attempt to open /home/main/lfs/3/root/home/main/lfs/3/crosstools/x86_64-lfs-linux-gnu/lib/libgcc_s.a failed
attempt to open crtend.o failed
attempt to open crtn.o failed
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crt1.o: No such file or directory
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crti.o: No such file or directory
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crtbegin.o: No such file or directory
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find -lgcc_s
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find -lc
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find -lgcc_s
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crtend.o: No such file or directory
/home/main/lfs/3/crosstools/lib/gcc/x86_64-lfs-linux-gnu/6.1.0/../../../../x86_64-lfs-linux-gnu/bin/ld: cannot find crtn.o: No such file or directory
collect2: error: ld returned 1 exit status
当我为交叉编译ARM构建GCC工具链时，我使用了。您看到的错误与跳过以下命令时发生的情况类似：
make -j4 csu/subdir_lib
install csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/aarch64-linux/lib
mkdir -p build-glibc
cd build-glibc
../glibc-2.20/configure --prefix=/opt/cross/aarch64-linux --build=$MACHTYPE
--host=aarch64-linux --target=aarch64-linux \
--with-headers=/opt/cross/aarch64-linux/include \
--disable-multilib libc_cv_forced_unwind=yes
make install-bootstrap-headers=yes install-headers
make -j4 csu/subdir_lib
install csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/aarch64-linux/lib \
aarch64-linux-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o \
/opt/cross/aarch64-linux/lib/libc.so
touch /opt/cross/aarch64-linux/include/gnu/stubs.h
cd ..
目前还不清楚GLIBC头是否已经在您的sysroot目录中，但我首先要检查这些文件是否存在。如果您不能以其他方式获得GLIBC头，那么您可能需要构建GLIBC头 当我为交叉编译ARM构建GCC工具链时，我使用了。您看到的错误与跳过以下命令时发生的情况类似：
make -j4 csu/subdir_lib
install csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/aarch64-linux/lib
mkdir -p build-glibc
cd build-glibc
../glibc-2.20/configure --prefix=/opt/cross/aarch64-linux --build=$MACHTYPE
--host=aarch64-linux --target=aarch64-linux \
--with-headers=/opt/cross/aarch64-linux/include \
--disable-multilib libc_cv_forced_unwind=yes
make install-bootstrap-headers=yes install-headers
make -j4 csu/subdir_lib
install csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/aarch64-linux/lib \
aarch64-linux-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o \
/opt/cross/aarch64-linux/lib/libc.so
touch /opt/cross/aarch64-linux/include/gnu/stubs.h
cd ..
目前还不清楚GLIBC头是否已经在您的sysroot目录中，但我首先要检查这些文件是否存在。如果您不能以其他方式获得GLIBC头，那么您可能需要构建GLIBC头 也许由于某种原因，
——with lib pathLD\u LIBRARY\u PATH--with lib pathLD\u LIBRARY\u PATH