问题描述

最近需要在debian 安装下arm和riscv的交叉工具链

sudo apt install gcc-10-riscv64-linux-gnu

在安装完后使用交叉工具链编译东西时报错

orangepi@orangepi4-lts:~/float-test$ riscv64-linux-gnu-gcc-10 float-cmov3.c -O2 -S
In file included from float-cmov3.c:1:
/usr/include/stdio.h:27:10: fatal error: bits/libc-header-start.h: No such file or directory27 | #include <bits/libc-header-start.h>|          ^~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

解决方案

在网上找了挺多答案都不行

 riscv64-linux-gnu-gcc-10 -vUsing built-in specs.
COLLECT_GCC=riscv64-linux-gnu-gcc-10
COLLECT_LTO_WRAPPER=/usr/lib/gcc-cross/riscv64-linux-gnu/10/lto-wrapper
Target: riscv64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 10.2.1-6' --with-bugurl=file:///usr/share/doc/gcc-10/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-10 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm --disable-libsanitizer --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --without-target-system-zlib --enable-multiarch --disable-werror --disable-multilib --with-arch=rv64imafdc --with-abi=lp64d --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=riscv64-linux-gnu --program-prefix=riscv64-linux-gnu- --includedir=/usr/riscv64-linux-gnu/include --with-build-config=bootstrap-lto-lean --enable-link-mutex
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.2.1 20210110 (Debian 10.2.1-6) 

在/usr/riscv64-linux-gnu/ 下搜索确实没有这个头文件，头文件一般和dev包有关，经过多次尝试，安装以下包就ok了

sudo apt install libc6-dev-riscv64-cross

arm和其他平台同理