Bumping this post again in hopes of eliciting comments ... Jeff
---------- Forwarded message ---------- From: Jeff Weber <[email protected]> Date: Fri, Aug 26, 2011 at 11:34 AM Subject: dynamic loader latencies To: Xenomai Help <[email protected]> The Linux ELF dynamic linker/loader ld-linux.so uses a "lazy" model by default, and defers symbol resolution, shared object resolution to the time when the symbol is first referenced. This sounds like a large latency threat to dynamically linked RT applications running in primary mode. Can this happen, or is this unlikely? If this is a latency risk, the only solutions I know of are: 1) Statically link all RT applications 2) Invoke all dynamically linked applications with LD_BIND_NOW=1 environment to force the dynamic loader to resolve all symbols at program startup 3) Link dynamic applications with "-z now" GNU ld option to effect same as 2) above. Comments? thanks, Jeff
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