[rfa/rfc:ppc] svr4 and not just ELFOSABI_LINUX for function parsing et.al.

[Kevin Buettner]

On Apr 22, 12:29am, Andrew Cagney wrote:

> I was finding that for a non-GNU/Linux SVR4 PPC platform malloc() was 
> failing because RS6000 TOC func-ptr code was being selected:
> 
>        /* Handle RS/6000 function pointers.  */
>        set_gdbarch_convert_from_func_ptr_addr (gdbarch,
>          rs6000_convert_from_func_ptr_addr);
> 
> the attached patch changes things to select all of:
> 
>        set_gdbarch_frameless_function_invocation (gdbarch,
>          ppc_linux_frameless_function_invocation);
>        set_gdbarch_frame_chain (gdbarch, ppc_linux_frame_chain);
>        set_gdbarch_frame_saved_pc (gdbarch, ppc_linux_frame_saved_pc);
> 
>        set_gdbarch_frame_init_saved_regs (gdbarch,
>                                           ppc_linux_frame_init_saved_regs);
>        set_gdbarch_init_extra_frame_info (gdbarch,
>                                           ppc_linux_init_extra_frame_info);
> 
>        set_gdbarch_memory_remove_breakpoint (gdbarch,
>  
> ppc_linux_memory_remove_breakpoint);
>        set_solib_svr4_fetch_link_map_offsets
>          (gdbarch, ppc_linux_svr4_fetch_link_map_offsets);
> 
> when svr4_abi.  It certainly improves things (fails went from 136 -> 80) 
>   but I'm not 100% certain if this is correct for all the above - I 
> suspect it is overkill :-/

It looks okay to me.  I have no problem with you checking it in.

Kevin