C++ 卡萨布兰卡：linux centos上的gcc 4.8.1程序集错误

我正在努力建设，就像他们在书上说的那样。因为我使用

CXX=gcc-4.8

安装的

gcc-4.8.1

不正常，所以我仅通过以下操作将其删除：

cmake .. -DCMAKE_BUILD_TYPE=Release

它会创建文件，当我执行

make

操作时，会出现以下错误：

Scanning dependencies of target casablanca
[  1%] Building CXX object src/CMakeFiles/casablanca.dir/streams/linux/fileio_linux.cpp.o
/tmp/ccoWLl81.s: Assembler messages:
/tmp/ccoWLl81.s:97: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:188: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:298: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:310: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:322: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:334: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:371: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:494: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:508: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:522: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:536: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:550: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:2028: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:2057: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:2086: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:3975: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:6186: Error: expecting string instruction after `rep'
/tmp/ccoWLl81.s:10355: Error: expecting string instruction after `rep'
make[2]: *** [src/CMakeFiles/casablanca.dir/streams/linux/fileio_linux.cpp.o] Error 1
make[1]: *** [src/CMakeFiles/casablanca.dir/all] Error 2
make: *** [all] Error 2

---

有人遇到过这个问题吗？是因为gcc4.8.1吗？如何修复它？

问题是GCC4.8正在生成“rep；ret”指令，以避免AMD芯片的性能损失。较旧的汇编程序将此检测为错误

详情如下:

修复方法是更新binutils，以便获得接受此指令的较新版本的汇编程序

sudo yum update binutils

--->将更新包binutils.x86_64 0:2.22.52.0.1-10.36.amzn1

---

--->包binutils.x86_64 0:2.23.52.0.1-30.64.amzn1将是一个更新

此答案修复了最近亚马逊EC2 CentOS box（3.4.37-40.44.amzn1.x86_64）上的相同错误。运行了

yum-update-binutils

，它将问题带到了2.23.52.0.1，我的问题就消失了。不幸的是，我不知道以前是哪个版本。对于CentOS6，我必须执行

sudo-yum安装devtoolset-2-binutils-devel