Starting with z/OS® V1R10, the z/OS XL C/C++ compiler saves some compiler options information inside the object code for each source file that is being compiled. These saved compiler options are known as Saved Options String (SOS). The SOS info utility decodes the SOS information from an executable file and produces a list of the compiler options that were used to control the code generation of a program. Using this utility, you can obtain the options information from an executable file without the need to produce and maintain compiler listing files.
17 June 2018