linux 提示nm版本太低，怎麽使用yum對其進行升級，或者哪兒可以下載到源碼包

妳可以安裝比較新的gcc來更新，我看centos 7.2下面有壹個gcc-nm，與nm報的信息壹樣：

[root@localhost ~]$nm --version

GNU nm version 2.23.52.0.1-55.el7 20130226

This program is free software; you may redistribute it under the terms of

the GNU General Public License version 3 or (at your option) any later version.

This program has absolutely no warranty.

[root@localhost ~]$gcc-nm --version

GNU nm version 2.23.52.0.1-55.el7 20130226

This program is free software; you may redistribute it under the terms of

the GNU General Public License version 3 or (at your option) any later version.

This program has absolutely no warranty.

也可以安裝 binutils.x86_64 : A GNU collection of binary utilities 試試，

yum install binutils 或者

yum update binutils

從搜索上看nm信息為：nm - GNU Binary Utilities