undefined reference to `gt_ggc_mx_machine_function(void*)' `gt_pch_nx_machine_function(void*)'

[William Tambe]

Thank you for taking the time to respond.

My machine_function is marked as GTY and defined as follow:
/* Per-function machine data.  */
struct GTY(()) machine_function {
    /* Number of bytes saved on the stack for local variables.  */
    int local_vars_size;

    /* The sum of 2 sizes: locals vars and padding byte for saving the
    * registers.  Used in expand_prologue () and expand_epilogue().  */
    int size_for_adjusting_sp;
};

Please, also find attached gcc/config/pu32/pu32.{c,h} files that I am using.
For now I am trying to get it to compile, even though the assembly
that gcc will generate will not be correct.

On Fri, Mar 22, 2019 at 1:39 AM Segher Boessenkool
<segher@kernel.crashing.org> wrote:
>
> On Thu, Mar 21, 2019 at 10:30:31PM -0500, William Tambe wrote:
> > I am porting GCC to a new 32bits cpu.
> >
> > Any idea what could be the reason that I am getting undefined references to:
> > gt_ggc_mx_machine_function(void*)
> > gt_pch_nx_machine_function(void*)
> >
> > Which macro or target-macro should I define to avoid such error ?
>
> You probably forgot to mark your machine_function as GTY.  It should be
> something like
>
> struct GTY (()) machine_function {
>   int a;
>   int b;
> };
>
> (See other ports for examples).
>
>
> Segher
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