Hi, > From archives/google, I understood that the OpenSSL works/supported on > Solaris 11 platform, but in our case, it's a bit different scenario. > > Currently, we build OpenSSL v0.9.8zc on Solaris 10 (SunOS, sun4u, sparc) > and it works well on Solaris 10 platform. We use Sun Studio 12 compiler. > > We would like to run it on Solaris 11.2 (SunOS, sun4v, sparc) platform > w/o changing the build platform. I mean we will continue to build > OpenSSL on Solaris 10 and run it on Solaris 11. > > Has anyone encounter such situation? Appreciate any help/pointers if > this mechanism will work?
It totally should work on Solaris. I personally would even encourage such practice, i.e. compile on older platform. In *general* case there are situation when it would be inappropriate (if possible at all), but OpenSSL on Solaris is not such case. Well, one can still argue that older compiler might fail to produce optimal code for both platforms, or even that compiler has to be run on target platform, but for most critical parts we do have assembly modules. Well, not so much in 0.9.8, so that there is a contradiction in what I'm trying to say, but it's about specifics, not general principle. And general principle is that assembly modules found in later releases can be compiled on old systems yet deliver optimal performance on new ones. This is thanks to run-time switch, when CPU capabilities are detected at run-time and different code paths are chosen for execution on different processors. [And to the fact that extension instructions are hand-coded so that you don't need latest assembler to compile.] Once again, this is for later OpenSSL releases. As far as 0.9.8 goes, if performance of compiler-generated code not being optimized for specific processor is not an issue, then compiling on older system is totally viable approach. _______________________________________________ openssl-dev mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
