我有一些共享库，大多数相信是通过Red Hat软件包安装的：ncurses，cap，uuid，xml2。
[root@mycomputer~]# rpm -ql libuuid-2.23.2-43.el7_4.2.x86_64
/usr/lib64/libuuid.so.1
/usr/lib64/libuuid.so.1.3.0
/usr/share/doc/libuuid-2.23.2
/usr/share/doc/libuuid-2.23.2/COPYING
> l /usr/lib64/*uuid*
-rwxr-xr-x. 1 root root 20040 Nov 9 2017 /usr/lib64/libuuid.so.1.3.0
lrwxrwxrwx. 1 root root 16 Jul 3 2018 /usr/lib64/libuuid.so.1 -> libuuid.so.1.3.0
供应商的示例程序的makefile在链接行上有-luuid，链接器抱怨：
/usr/bin/ld: cannot find -luuid
我运行strace -f make ... >& makeout以捕获由make及其子代进程进行的所有系统调用。 -f的意思是“也跟随子进程。”]
当我为字符串uuid复制该输出文件时，我看到它从来没有在寻找扩展名为.1的文件。
[pid 21920] open("/opt/nmr/sap/sybaseASE/sybclient-16.0.3-7/OCS-16_0/lib/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/opt/nmr/sap/sybaseASE/sybclient-16.0.3-7/OCS-16_0/lib/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/gcc/x86_64-redhat-linux/4.8.5/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/gcc/x86_64-redhat-linux/4.8.5/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/lib/../lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/lib/../lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/../lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/../lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/x86_64-redhat-linux/lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/x86_64-redhat-linux/lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/local/lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/local/lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/lib64/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/lib64/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/x86_64-redhat-linux/lib/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/x86_64-redhat-linux/lib/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/local/lib/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/local/lib/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/lib/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/lib/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/libuuid.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 21920] open("/usr/lib/libuuid.a", O_RDONLY) = -1 ENOENT (No such file or directory)
[我了解从/usr/lib64/libuuid.so之类的文件（没有.1后缀）到特定版本的软链接的机制，例如，libuuid.so.1.3.0链接器实际上做了一个readlink()以找出libuuid.so指向的最终文件，并将该链接libuuid.so.1.3.0的目标嵌入到二进制文件中。这样，即使将来uuid的“最新”版本也将变成1.4.0，并且将libuuid.so重新指向该新版本，例如，该二进制文件在运行时仍将与1.3.0链接。] >
但是编译器如何从libuuid.so转换为libuuid.so.1？
我有一些共享库，大多数相信是通过Red Hat软件包安装的：ncurses，cap，uuid，xml2。 [root @ mycomputer〜]＃rpm -ql libuuid-2.23.2-43.el7_4.2.x86_64 /usr/lib64/libuuid.so.1 / usr / lib64 / ...
libuuid-devel：