Arm 无法使用clang+；交叉编译代码+；

命令：

我试图用CLAN++来编译一个简单的C++程序。我正在使用Linaro gcc工具链获取库和其他所需的包含

${root}/bin/clang++ --target=arm-linux-gnueabihf --rtlib=compiler-rt --stdlib=libc++ -nostdinc++ -I${root}/include/c++/v1 -Wl,-L${root}/lib --sysroot ${sysroot} --gcc-toolchain=/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf -rpath ${root}/lib TestCodeX86toARM.cpp -o Test -v

root和sysroot的值如下所示：

root=/path/to/clang/install\u dir

sysroot=/path/to/linarogcc/arm-linux-gnueabihf/libc

TestCodeX86toARM.cpp只是一个helloworld代码

输出：

clang version 10.0.0 
Target: arm-unknown-linux-gnueabihf
Thread model: posix
InstalledDir: /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/bin
Found candidate GCC installation: /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0
Selected GCC installation: /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0
Candidate multilib: .;@m32
Selected multilib: .;@m32
 "/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/bin/clang-10" -cc1 -triple armv6kz-unknown-linux-gnueabihf -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name TestCodeX86toARM.cpp -mrelocation-model static -mthread-model posix -mframe-pointer=all -fmath-errno -fno-rounding-math -masm-verbose -mconstructor-aliases -target-cpu arm1176jzf-s -target-feature +strict-align -target-abi aapcs-linux -mfloat-abi hard -fallow-half-arguments-and-returns -dwarf-column-info -fno-split-dwarf-inlining -debugger-tuning=gdb -v -nostdinc++ -resource-dir /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0 -I /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/include/c++/v1 -isysroot /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc -internal-isystem /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/local/include -internal-isystem /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/include -internal-externc-isystem /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/include -internal-externc-isystem /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/include -fdeprecated-macro -fdebug-compilation-dir /home/user/Tejas/CrossCopileTestCode -ferror-limit 19 -fmessage-length 0 -fno-signed-char -fgnuc-version=4.2.1 -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -faddrsig -o /tmp/TestCodeX86toARM-438a38.o -x c++ TestCodeX86toARM.cpp
clang -cc1 version 10.0.0 based upon LLVM 10.0.0 default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/local/include"
ignoring nonexistent directory "/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/include"
#include "..." search starts here:
#include <...> search starts here:
 /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/include/c++/v1
 /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/include
 /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/include
End of search list.
 "/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/../../../../arm-linux-gnueabihf/bin/ld" --sysroot=/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc -EL -z relro -X --hash-style=gnu --eh-frame-hdr -m armelf_linux_eabi -dynamic-linker /lib/ld-linux-armhf.so.3 -o Test /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib/../lib/crt1.o /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib/../lib/crti.o /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/crtbegin.o -L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0 -L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/../../../../arm-linux-gnueabihf/lib/../lib -L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/lib/../lib -L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib/../lib -L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/../../../../arm-linux-gnueabihf/lib -L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/lib -L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib -L/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib -rpath /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib /tmp/TestCodeX86toARM-438a38.o -lc++ -lm /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/lib/linux/libclang_rt.builtins-armhf.a -lc /home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/lib/linux/libclang_rt.builtins-armhf.a /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/crtend.o /home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib/../lib/crtn.o
/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/libc++.so.1: file not recognized: File format not recognized
clang-10: error: linker command failed with exit code 1 (use -v to see invocation)

clang版本10.0.0
目标：arm未知linux gnueabihf
线程模型：posix
InstalledDir:/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/bin
找到候选GCC安装：/home/user/Tejas/LLVM/GCC-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/GCC/arm-linux-gnueabihf/7.5.0
所选GCC安装：/home/user/Tejas/LLVM/GCC-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/GCC/arm-linux-gnueabihf/7.5.0
候选多重库：@m32
所选多库：@m32
“/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/bin/clang-10”-cc1-三重armv6kz未知linux gnueabihf-emit obj-mrelax all-disable free-disable llvm verifier-discard value names-主文件名TestCodeX86toARM.cpp-mrelocation model static-mthread model posix-mframe pointer=all-fmath errno-fno舍入数学-masm verbose-mconstructor别名-target cpu arm1176jzf-s-target功能+严格对齐-目标abi aapcs linux-mfloat abi hard-fallow半参数和返回-dwarf列信息-fno分割dwarf内联-调试器调优=gdb-v-nostinc++-资源目录/home/user/Tejas/clang+llvm-10.0.0-x86\u 64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0-I/home/user/Tejas/clang+llvm-10.0.0-x86\u 64-linux-gnu-ubuntu-18.04/include/c++/v1-isysroot/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_-arm-linux-gnueabihf/arm-linux-gnueabihf/libc-内部isystem/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_-arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/local/include-内部isystem/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/include-内部外部isystem/home/user/Tejas/llvm/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/include-内部外部isystem/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/include-fdeprecated宏-fdebug编译目录/home/user/Tejas/CrossCopileTestCode-feror限制19-fmessage长度0-fno签名字符-fgnuc版本=4.2.1-fobjc运行时=gcc-fcxx异常-feexceptions-fdiagnostics显示选项FFRACK诊断-FADDRSIG-O/TMP/TestCooDeS86toARM 438 A38 O-XC++ C++测试CODEX86toARM.CPP
clang-cc1版本10.0.0基于LLVM 10.0.0默认目标x86_64-unknown-linux-gnu
忽略不存在的目录“/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/local/include”
忽略不存在的目录“/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/include”
#包括“…”搜索从这里开始：
#包括搜索从这里开始：
/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/include/c++/v1
/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/include
/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/include
搜索列表结束。
“/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/../../../../../arm linux-gnueabihf/bin/ld”--sysroot=/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_-arm-linux-gnueabihf/arm-linux-gnueabihf/libc-EL-z-relro-X--hash style=gnu--eh frame-hdr-m armelf-linux_-eabi-dynamic linker/lib/ld-linux-armhf.so.3-o Test/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_-arm-linux-gnuehf/lib/linux/lib/gru/4.8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 0-L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/../../../../../../arm linux-gnueabihf/lib/../lib-L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm/lib/lib-L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib//lib-L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/../../../../../../../arm-linux-gnueabihf/lib-L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/lib-L/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/libc/usr/lib-L/home/user/Tejas/g+LLVM-10.0.0.0-x86_-linux-gnueabihf-18.0/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/tmp/TestCodeX86toARM-438a38.o-lc++-lm/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/lib/linux/libclang\u rt.builtins armhf.a-lc/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/clang/10.0.0/lib/linux/libclang_rt.builtins armhf.a/home/user/Tejas/llvm/gcc-linaro-7.5.0-2019.12-x86_64-arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/7.5.0/crtend.o/home/user/Tejas/LLVM/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib/./lib/crtn.o
/home/user/Tejas/clang+llvm-10.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/libc++.so.1:文件未识别：文件格式未识别
clang-10:错误：链接器命令失败，退出代码为1（使用-v查看调用）

您的链接器正试图链接到libc++。但是，clang在您的数据库中找不到此库