Hi Guys, With the annobin plugin for gcc I have a problem accessing some of the fields in the global_options structure. Although the plugin can use the macros defined in options.h, this only works if the plugin is in sync with gcc. If the plugin was built for one version of gcc, but run from another version, then the access can become invalid if the fields in struct gcc_options have changed. (This does seem to happen quite a lot).
Whilst forcing the plugin to stay in sync with gcc is one possible solution, it does have its own problems. So I am looking for another solution. Using the cl_options array and the flag_var_offset field does help. But cl_options only has entries for some of the fields in global_options, not all of them. (Eg: main_input_filename, flag_sanitize, optimize). One method that would work would be to enhance the optc-gen.awk and opth-gen.awk scripts so that they create a set of accessor functions. eg get_main_input_filename() or get_flag_sanitize(). These would not have to be used by the current gcc code, but their presence in the executable would allow them to be accessed from plugins. Alternatively a single accessor function which takes a parameter indicating the desired field and which returns its current value would also work. What do people think ? Is this idea practical, or is there a better solution ? Cheers Nick
