Such variables are for thread local storage in concurrent applications. These types of variables require special handling to patch. Depending on the TLS model used:
global-dynamic/local-dynamic sometimes utilize TLSDESC relocations. -- Handling all TLS model scenarios is a decent undertaking but not too difficult. Will require some extra deepdives into ELF TLS again.
__thread int var;
Such variables are for thread local storage in concurrent applications. These types of variables require special handling to patch. Depending on the TLS model used:
global-dynamic. local-dynamic. initial-exec. local-exec.
global-dynamic/local-dynamic sometimes utilize TLSDESC relocations. -- Handling all TLS model scenarios is a decent undertaking but not too difficult. Will require some extra deepdives into ELF TLS again.