On Thu, Nov 11, 2010 at 09:47, Merrick, Thomas
<thomas.merr...@tamucc.edu> wrote:
> libbackend.a(coverage.o):(.rodata+0x20): undefined reference to
> `gt_ggc_mx_lang_tree_node'
> libbackend.a(coverage.o):(.rodata+0x24): undefined reference to
> `gt_pch_nx_lang_tree_node'
> libbackend.a(dbxout.o):(.rodata+0x180): undefined reference to
> `gt_ggc_mx_lang_tree_node'
> libbackend.a(dbxout.o):(.rodata+0x184): undefined reference to
> `gt_pch_nx_lang_tree_node'
You are likely missing a function like this:
/* Tree walking support. */
static enum gimple_tree_node_structure_enum
gimple_tree_node_structure (union lang_tree_node *t ATTRIBUTE_UNUSED)
{
return TS_GIMPLE_GENERIC;
}
And a counterpart structure
union GTY((desc ("gimple_tree_node_structure (&%h)"),
chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
lang_tree_node
{
union tree_node GTY ((tag ("TS_GIMPLE_GENERIC"),
desc ("tree_node_structure (&%h)"))) generic;
};
I believe that Ian Taylor had some tutorial notes on writing front
ends. Ian, am I dreaming again?
Diego.
