Hi Is there any particular reason to load plugin with the RTLD_NOW option? This option force .so symbol resolution to be completely made at load time, but this could be done only when a symbol is needed (RTLD_NOW).
Here is the dlopen line in plugin.c: dl_handle = dlopen (plugin->full_name, RTLD_NOW | RTLD_GLOBAL); My issue is, I want to load the same plugin.so in both cc1 and cc1plus, but in the C++ case, I may need to reference some cc1plus specific symbols. I can check whether cc1 or cc1plus loaded the plugin and thus use custom C++ symbols only when present. With RTLD_NOW, the plugin fails to load in cc1 as symbol resolution is forced at load time. If RTLD_NOW is removed, dlopen falls back to the RTLD_LAZY mode which fits my need. Moreover, if one can force the complete symbol resolution at load time by defining the environment LD_BIND_NOW variable. So, is RTLD_NOW use justified ? Romain Geissler
