[RFA] Fix gdbserver build failure on arm-android.

[Pedro Alves]

On 05/08/2015 05:01 PM, Joel Brobecker wrote:
> Hello,
> 
> The following patch...
> 
> | proc-service, extern "C"
> |
> | libthread_db.so calls symbols in the client (GDB), through the
> | proc-service interface.  These routines must have extern "C" linkage
> | so their symbol names are not mangled when GDB is built as a C++
> | program.  On the GDBserver side, we were missing fallback declarations for
> | all these symbols.
> |
> | gdb/ChangeLog:
> |
> |     * gdb_proc_service.h: Wrap with EXTERN_C_PUSH/EXTERN_C_POP.
> |
> | gdb/gdbserver/ChangeLog:
> | 2015-02-27  Pedro Alves  <palves@redhat.com>
> |
> |     * gdb_proc_service.h: Wrap with EXTERN_C_PUSH/EXTERN_C_POP.
> |     [!HAVE_PROC_SERVICE_H] (struct ps_prochandle): Forward declare.
> |     [!HAVE_PROC_SERVICE_H] (ps_pdread, ps_pdwrite, ps_ptread)
> |     ps_ptwrite, ps_lgetregs, ps_lsetregs, ps_lgetfpregs)
> |     (ps_lsetfpregs, ps_getpid)
> |     (ps_get_thread_area, ps_pglobal_lookup, ps_pstop, ps_pcontinue)
> |     (ps_lstop, ps_lcontinue, ps_lgetxregsize, ps_lgetxregs)
> |     (ps_lsetxregs, ps_plog): Declare.
> 
> ... added a number of declarations which do not compile when cross-
> compiling GDBserver on arm-android. The problem comes from type
> prfpregset_t not being declared:
> 
>     /[...]/gdbserver/gdb_proc_service.h:98:47:
>     error: unknown type name 'prfpregset_t'
> 
> After searching through the includes of the install we have,
> I could not find that type being declared anywhere. So I did
> the same as for prgregset_t, and created the typedef if the
> type isn't declared.
> 
> gdb/gdbserver/ChangeLog:
> 
>         * configure.ac: Add prfpregset_t BFD_HAVE_SYS_PROCFS_TYPE check.
>         * configure, config.in: Regenerate.
>         * gdb_proc_service.h [HAVE_PRFPREGSET_T] (prfpregset_t):
>         Declare typedef.
> 
> OK to commit?

OK.

BTW, do you also trip on this one? :

 https://sourceware.org/ml/gdb/2015-04/msg00025.html

Thanks,
Pedro Alves